081 today 禹 8-20
[Introduction] Today's 8-20 is a water-soluble quenching agent for PAG-based polymers. The medium is easily soluble in water and can be mixed with water to form a quenching liquid with various cooling characteristics. Quenching and softening can be eliminated during quenching and cooling, so that the workpiece can obtain high and uniform surface hardness and sufficient hardening depth, and greatly reduce the quenching deformation of the workpiece. The quenching liquid does not burn, there is no fire hazard; the quenching gas is quenched and the production environment is clean.
[Typical physical and chemical properties] The typical physical and chemical parameters are shown in Table 2-18.
ã€The main purpose】
1 Mainly used for all kinds of carbon steel, low alloy structural steel, carburized steel, spring steel, bearing steel and other steel workpieces for overall dip quenching and induction heating quenching.
2 It is completely unsuitable for steel parts with secondary hardening properties, such as high speed steel and hot hot die steel.
3 Because the dissolved salt will affect the concentration and control of the quenching liquid, contact the manufacturer to determine that this product is generally not suitable for quenching and cooling the workpiece after heating in a salt furnace.
4 For batch quenching of workpieces, the workpieces in the same batch should be kept at a sufficient distance or dispersed into the quenching liquid in a dispersed manner.
5 Suitable for multi-class steel parts for overall dip quenching, induction heating quenching.
6 aluminum alloy parts are solid solution heated and quenched.
082今禹8-60
[Introduction] Today's 8-60 is a water-soluble quenching agent for PAG-based polymers. It is characterized by being easily soluble in water and changing the concentration to prepare a quenching liquid with various cooling characteristics.
[Typical physical and chemical properties] The typical physical and chemical parameters are shown in Table 2-19.
ã€The main purpose】
1 Mainly used for all kinds of carbon steel, low alloy structural steel, carburized steel, spring steel, bearing steel and other steel workpieces for overall dip quenching and induction heating quenching.
2 It is completely unsuitable for steel parts with secondary hardening properties, such as high speed steel and hot and cold die steel.
3 Because the dissolved salt will affect the concentration and control of the quenching liquid, this product is generally not suitable for quenching the workpiece after heating by the salt furnace.
4 For batch quenching of workpieces, the workpieces in the same batch should be kept at a sufficient distance or dispersed into the quenching liquid in a dispersed manner.
5 Suitable for multi-class steel parts for overall dip quenching, induction heating quenching and quenching after solid solution heating of aluminum alloy parts. It can eliminate the quenching and soft spots, so that the workpiece can obtain high and uniform surface hardness and sufficient hardening depth, and greatly reduce the quenching deformation of the workpiece.
[Precautions for use]
1 concentration is easy to measure and easy to control. The long-term stable quenching cooling effect can be obtained by controlling the concentration; the PAG polymer has high chemical stability and long service life; the quenching liquid does not burn, no fire hazard; the quenching gas is quenched, the production environment is clean; the workpiece and the quenching tank have Anti-rust effect; the workpiece after quenching can be directly tempered without cleaning.
2 The density and specific heat of the quenching liquid of the quenching agent are basically the same as those of the quenching liquid, and the quenching liquid diluted with the raw material of the quenching agent product is added to the quenching tank in use, the quenching liquid circulating cooling system and the quenched workpiece ( Before tempering and cleaning) there is a certain degree of rust prevention. The aqueous solution of the product has a good sterilizing ability, and can ensure that the quenching liquid in use does not smell for a long time.
083 Aqua-Quench 140
[Introduction] Houghton water-based quenching fluid Aqua-Quench 140 is a PAG water-based quenching liquid, referred to as AQl40, which is specially developed for surface quenching, with reverse solubility and ideal process performance. The quenching medium has the characteristics of thorough fireproof, no oily smoke, no greasy, convenient cleaning, safety, clean and environmental protection.
There are few viscous residues on the quenching equipment and the quenched workpiece, and the economic performance is good. Long service life prevents nozzles and filters from clogging. Excellent rust resistance. It does not contain nitrite and is an environmentally friendly product. Improve the surface wettability of the workpiece. Significantly reduce the stability of the vapor film. Eliminate quenching soft spots. The quenching cooling rate is adjustable.
This use is diluted with water and the quenching and cooling characteristics are very stable. It can eliminate the defects related to water quenching, such as stable vapor film, high residual stress, quenching soft point and mechanical properties can not maintain stable and consistent.
[Typical physical and chemical properties]
PH value of raw liquid (5%): 8.7
Original viscosity (40 ° C) / (mm ^ 2 / s): 72 ~ 78
ã€The main purpose】
1 It is applied to heat treatment such as quenching and carburizing of various metal parts.
2 is especially suitable for surface hardening. Such as induction hardening, flame quenching and so on.
3AQ140 can be used for induction heating quenching of various workpieces, such as crankshafts, camshafts, gearbox parts, toothed sleeves and bearings, as well as flame quenching.
4 Change the concentration of the solution to adjust the cooling rate of AQ140 to adapt to the hardenability and shape requirements of different steel parts. The 1% to 5% concentration of AQ140 solution can improve the surface temperature of the workpiece to make the quenching process more uniform and prevent quenching soft spots. Low concentration solutions are commonly used for low hardenability steels. 5% to 20% concentration of AQ140 solution can provide similar cooling rate to emulsion and quenching oil, suitable for high hardenability steel parts.
084 Aqua-Quench 145
[Introduction] Houghton water-based quenching fluid Aqua-Quench 145 is a water-soluble PAG quenching liquid, referred to as AQ14 5. It has the characteristics of thorough fireproof, no fumes, no greasy, easy to clean, safe, clean and environmentally friendly.
There are few viscous residues on the quenching equipment and the quenched workpiece, and the economic performance is good. It has biological stability, long service life and good economic performance. Prevent clogging of the mouth and filter. Excellent rust resistance, no nitrite. Improve the surface wettability of the workpiece. The quenching cooling rate is adjustable by changing the concentration of the solution.
[Typical physical and chemical properties]
Stock pH (5%): 8.7
Original viscosity (40 ° C) / (mm2 / s): 72 ~ 78
ã€The main purpose】
1 It is applied to heat treatment such as quenching and carburizing of various metal parts.
2 is especially suitable for surface quenching, such as induction hardening, fire quenching and so on.
3 The medium is diluted with water when used, and the quenching and cooling characteristics are very uniform and stable. It can eliminate the defects such as stable vapor film, high residual stress, hardening point and mechanical properties that cannot be kept consistent.
4 This medium can be used for induction heating quenching of various workpieces, such as crankshafts, camshafts, gearbox parts, toothed sleeves and bearings. It can also be used for flame quenching and cooling.
The AQ145 solution with a concentration of about 5% can improve the surface wettability of the workpiece, thereby making the quenching process more uniform and preventing quenching soft spots. Low concentration solutions are commonly used for low hardenability steels. 5% to 20% concentration of AQ145 solution can provide similar cooling rate to emulsion and quenching oil, suitable for high hardenability steel parts.
085 Aqua-Quench251
[Introduction] Same as 084 Aqua-Quench 145.
[Typical physical and chemical properties] The typical physical and chemical parameters are shown in Table 2-20.
[Quenching and Cooling Characteristics] The IVF cooling rate test in accordance with ISO 9950 is used. Only the cooling rates of different concentrations of Aqua-Quench 251 and water are measured as shown in Table 2-21.
As can be seen from the above table, the convection phase of AQ251 is significantly lower than that of water, which greatly reduces the deformation and cracking tendency of the part.
See Table 2-22 and Table 2-23 for the quenching and cooling capacity of 40 steel and 40CrMo copper in different concentrations of AQ251 medium.
ã€The main purpose】
1 Suitable for heat treatment of carbon steel, alloy steel and cast iron: different concentrations are selected according to different carbon content and alloy composition, different performance and different size of parts, generally between 5% and 25%.
2 For induction hardening: For the quenching of gears or camshaft parts with induction heating or flame heating and oil cooling, AQ251 is the ideal substitute for quenching oil, which completely eliminates the fumes and fire hazards.
3 large parts of quenching: according to the carbon content, alloying elements and content, performance requirements, parts of different sizes. And choose different concentrations. Generally between 10% and 20%.
4 aluminum alloy solution treatment: common concentration between 5% to 10%.
The site can be considered based on the steel grade, shape complexity, size, heat treatment requirements, and the cooling system of the shop. It is generally not recommended to use this medium for quenching in a salt bath furnace.
[Precautions for use]
(1) Concentration detection The concentration of AQ251 can be measured by a refractometer at the production site.
Concentration % = Refractometer display reading × refractive index (new liquid is 2.5)
During the use of the quenching liquid, the refractive index will be affected by the influence of system pollution. To ensure good control of the bath concentration, samples should be taken periodically to correct the on-site concentration value.
(2) Temperature control It is recommended that the optimum solution temperature be 20 to 40 ° C, which should not be higher than 55 ° C.
In order to ensure the stability of the product quality, it is recommended to control the quenching temperature to the narrowest possible range. The temperature rise before and after quenching of the bath is also controlled within 10 °C as much as possible, so a cooling cycle device is recommended. If the room temperature is too low in winter, consider heating the bath before quenching or increase the concentration appropriately.
(3) Stirring control In order to obtain the quenching and cooling effect as uniform as possible, the bath should be continuously stirred. Pump circulation, propeller agitation and nozzles can be used, depending on the site.
(4) Shelf life The products that have passed the factory inspection shall be used within one year. If it has not been used beyond the time limit, it can be used after it has passed the test.
[Storage] Indoor storage, storage temperature is 5 ~ 40 °C.
086 Aqua-Quench 364
[Introduction] Houghton water-based quenching liquid, polyalkylene glycol polymer compound, has reverse solubility; has good anti-rust properties. The quenching and cooling convection stage has a lower cooling rate and can replace mineral oil as a cooling medium for alloy steel.
By adjusting the concentration, different cooling rates can be obtained. The convection phase of the quenching cooling has a lower cooling rate. Quenching hardness is uniform, no point, quenching deformation and cracking tendency is small; quenching workpiece is bright and has short-term anti-rust effect, can be directly tempered without cleaning. No corrosion to ferrous metals. It is not easy to age and deteriorate, and has a long service life. When the quenching material is discharged, the amount of the quenching material is small, and the cost performance is high. No oil smoke pollution, improve the working environment, no burning, no fire hazard.
[Typical physical and chemical properties] The typical physical and chemical parameters are shown in Table 2-24.
ã€The main purpose】
1 Suitable for open quenching tanks, continuous crucibles, multi-purpose furnaces for quenching tank peripherals and induction furnace quenching.
2 surface quenching. Gears, shafts, crankshafts, bearings, and drill pipes are often quenched by induction heating or flame heating. Aqua-Quench 364 can replace oil and eliminate smoke and fire hazards.
3 forgings are quenched. Forgings of various medium and low hardenability steel grades can be quenched with Aqua-Quench364 at a concentration of 8% to 25%.
4 castings are quenched. Castings of various medium and low hardenability alloy steels can be quenched with Aqua-Quench364 at a concentration of 8% to 25%.
5 Ductile iron can also be quenched with an aqueous solution of 15% to 25% Aqua-Quench 364.
65% to 10% Aqua-Quench364 water is suitable for quenching of low and medium carbon steels and low alloy steels.
710%~15% Aqua-Quench364 aqueous solution is suitable for quenching of medium carbon alloy structural steel and high carbon steel.
815% to 25% Aqua-Quench 364 aqueous solution is suitable for bearing steel, high hardenability alloy steel, and quenching of more complex section parts.
9 It is generally not recommended to use this medium for quenching in a salt bath furnace.
[Precautions for use]
(1) Concentration detection The concentration of AQ364 can be measured by a refractometer at the production site. The method is the same as AQ251.
(2) Temperature control It is recommended that the optimum solution temperature be 20 to 40 ° C, but not higher than 55 ° C.
In order to ensure the stability of product quality. It is recommended to control the quenching temperature to the narrowest possible range. The temperature rise before and after quenching of the bath is also controlled within 10 °C as much as possible, so a cooling cycle device is recommended. If the room temperature is too low in winter, consider heating the bath before quenching or increase the concentration appropriately.
(3) Stirring control In order to obtain the quenching and cooling effect as uniform as possible, the bath should be continuously stirred. Pump circulation, propeller agitation and nozzles can be used, depending on the site.
(4) Parameter selection The optimum concentration and parameters of Aqua-Quench364 can be selected according to the steel type, shape complexity, size, heat treatment requirements and cooling system of the workpiece.
(5) Shelf life The products that have passed the factory inspection shall be used within one year. If it has not been used beyond the time limit, it can be used after it has passed the test.
[Storage] Indoor storage, storage temperature is 5 ~ 40 °C.
087 Aqua-Quench 365,371
[Introduction] Huffton water-based PAG quenching liquid has ideal process performance. It has reverse solubility; the cooling rate in the convection stage is low. The water-based quenching medium has the characteristics of thorough fireproofing, no oily smoke, no greasy, convenient cleaning, safety, clean and environmental protection; the cooling speed is between water and oil.
[Typical physical and chemical properties]
Aqua-Quench 365
Stock pH (5%): 8.3
Original solution viscosity (40 ° C) / (mm ^ 2 / s): 365 ~ 395
Aqua Quench 371
Stock pH (5%): 9.5
Original solution viscosity (40 ° C) / (mm ^ 2 / s): 280 ~ 320.
[Main use] It can be used as a quenching medium for general alloy steel.
088 KHP-C quenching agent
[Introduction] KHP C is a PAG type quenching agent. With reverse solubility, the quenching liquid prepared by the quenching agent has a significantly lower cooling capacity in the high and middle temperature regions than the water, but can fully meet the quenching intensity requirements of various hardened steel parts, and the cooling capacity in the low temperature zone. It is much slower than water, similar to oil. The cooling characteristics of the quenching agent can be adjusted by adjusting the polymer concentration, the bath temperature and the stirring strength to meet the quenching process requirements of different copper species and alloys.
The medium is free from oil smoke, fire and fire hazard, does not pollute the workplace, does not harm the health of the personnel; does not rust the workpiece and pipeline, liquid tank and other cooling systems; has bactericidal ability, the tank does not smell, it is extremely safe Quenching medium.
The medium has good heat resistance, good oxidation property, long process life, good cleanability and low process cost. Due to the wide application of detection means such as portable quenching medium performance detector, the quenching bath liquid property is easy to measure and control, and there is no oil base. The environmental pollution problem caused by the non-degradable medium is a green and environmentally-friendly quenching medium.
[Typical physical and chemical properties] The typical physical and chemical parameters are shown in Table 2-25.
ã€The main purpose】
1 Suitable for quenching process: integral heating immersion quenching, induction heating immersion quenching and spray quenching, aluminum alloy solution hardening and so on.
2 Applicable parts: springs, gears, bearings, crankshafts, shafts, screw rods, rolls, standard parts, tooling, all kinds of forged steel parts, cast iron parts, aluminum alloy boards, etc.
3 can be used for heat treatment cooling of various types of furnaces other than salt bath furnaces.
089 KHP-W quenching agent
[Introduction] Same as 088 KHP-C quenching agent.
[Typical physical and chemical properties] The typical physical and chemical parameters are shown in Table 2-26.
ã€The main purpose】
1 Suitable for steel grades: carburizing, carbonitriding steel, carbon steel, medium and low alloy steel and medium and low hardenability structural steel. Such as 20, 20Cr, 20CrNi, 20CrMnTi, 35, 45, 40Cr, 40CrMnMo, 42CrMo, 50, 50CrV, 55SiMnV, 60Si2Mn, T7, T8, T12, GCr15, GCrl5SiMn and the like.
2 Applicable parts: springs, gears, bearings, crankshafts, shafts, screw rods, rolls, standard parts, tooling, various forgings, cast iron parts, aluminum alloy plates, etc.
3 Suitable for quenching process: integral heating immersion quenching, induction heating diffuse quenching and spray quenching, aluminum alloy solution quenching, etc.
4 It can be used for the whole immersion quenching, induction immersion quenching and liquid quenching, and quenching of aluminum alloy for all kinds of steel parts (except high-speed steel) heated by furnace type except for each salt bath furnace.
090 Wonder Quench PE
[Introduction] The organic polymer in the medium is completely soluble in water to form a clear, homogeneous solution. However, when the temperature exceeds 74 ° C, the polymer separates out from the water to form an insoluble phase. The medium overcomes the shortcomings of rapid water cooling, easy cracking of the workpiece, slow cooling of the oil product, poor quenching effect and flammability.
When the red hot metal is cooled with a dilute solution of the medium, the liquid organic polymer deposits on the surface of the metal to form a film. The thickness of the cooling adjustment film is controlled by adjusting the concentration, temperature or degree of agitation of the quenching liquid to achieve a partial control of the metal cooling process.
The polymer component used to control thermal conversion in this medium is different from the polyether component in UCON A in the United States. The medium is capable of removing soot, coal ash and debris as compared to conventional oil quenching agents. Make equipment maintenance and factory cleaning work easy.
[Typical physical and chemical properties] The typical physical and chemical parameters are shown in Table 2-27.
ã€The main purpose】
1 Suitable for typical oil-quenched high carbon copper and high alloy steel; with a concentration of 20% to 30%, it can be applied to the overall and surface quenching of steel.
7 Suitable for induction hardening and flame quenching, suitable for jet quenching and dip quenching, it can be applied to high-alloy parts with complex geometric shapes such as ductile iron and ductile cast iron.
3 Large-scale alloy parts for in-vehicle and pit furnaces, induction-heat-formed parts or alloys.
4 For processing parts (intermittent and continuous operation) requiring oil quenching in furnaces using gas, natural gas and carbon ammonia co-infiltration.
5 oxidizing furnaces, natural gas furnaces and protective gas furnaces for rotary or continuous mixers. They can be used for direct quenching after casting of parts; continuous quenching of castings and general quenching of cast steel, forged steel and cast iron.
6 Large-volume quenching of parts such as automobiles and tractor gears (continuous carburizing production line or box type multi-purpose furnace).
7 can be used in various automotive parts as well as aluminum and titanium alloys in the aerospace industry. Quenching of alloy steel forging die, induction braking and quenching of high torque diesel engine crankshaft.
[Precautions for use]
1 The medium will solidify below 0 °C, need to be thawed and mixed at room temperature before use, the product function will not be affected.
2 The aqueous quenching agent has no corrosion to ferrous and non-ferrous metals, and the quenched workpiece is bright and has short-term anti-rust effect.
3 The medium requires a minimum amount of addition treatment because they are less susceptible to deterioration and oxidation than ordinary polyvinyl alcohol and dissolved oil. The main addition is to supplement the water lost by evaporation.
4 Recommended optimum solution temperature 20 ~ 50 ° C, should not be higher than 60 ° C.
09l PQGP high frequency quenching agent
[Introduction] Water-soluble polymer quenching agent is a polyglycol polymer. The supply state is a viscous liquid, which is infinitely dissolved with water. The medium does not precipitate at the temperature of <80 ° C, does not precipitate, and does not need to be stirred frequently. The quenched workpiece has excellent hardening effect and anti-rust performance, and has no pollution to the environment.
The quenching liquid prepared by the mother liquor in water is not resistant to aging and is effective for a long time. However, after quenching a large number of parts for a long time, the concentration of the aqueous solution will change. At this time, the refractometer (sugar meter) can be used to conveniently detect the concentration and timely The mother liquor is added to maintain the solution at a certain concentration level.
The cooling capacity is adjustable, the medium concentration can be easily determined, and the deformation can be reduced to prevent quenching. After the workpiece is cooled, it will not rust and it is easy to carry out subsequent surface treatment. It is odorless, non-polluting, smokeless, and has no fire hazard. The normal consumption is less than oil.
ã€The main purpose】
1PQGP is mainly used for high and medium frequency quenching: carbon steel and non-alloy ductile iron, adding 2% to 4% PQGP mother liquor in water; medium carbon low alloy structural steel, such as 40Cr, 40Mn2, 35CrMo, 42CrMo, etc., should be added in water 5 %～8% PQGP mother liquor; high carbon alloy tool steel, adding 7%~10% mother liquor in water.
2 The mother liquor prepared by the mother liquor in a certain proportion in water is mainly used for spray quenching after induction heating, and can also be used for dip quenching after induction heating.
092 medium speed quenching agent PQP
[Introduction] The supply state is a viscous liquid, which dissolves infinitely with water. The cooling capacity is adjustable, the medium concentration can be easily determined, and the deformation can be reduced to prevent quenching. After the workpiece is cooled, it will not rust and it is easy to carry out subsequent surface treatment. It is odorless, non-polluting, smokeless, and has no fire hazard. The normal consumption is less than oil.
[Quenching and cooling characteristics] The aqueous solution of this product has reverse solubility. When the workpiece is cooled in water, a very thin polymer barrier film is formed on the surface of the workpiece at a high temperature stage, so that the cooling rate is reduced (compared with water). The cooling rate below 300 ° C is small. In the temperature range of 650-500 ° C, the cooling rate of quenching oil can be obtained 2 to 4 times, and the cooling rate in low temperature zone (300 ° C) is close to the ridge speed of oil.
ã€The main purpose】
1 can be used for quenching of carbon copper, ductile iron and alloy steel.
2 This product is suitable for quenching and cooling of carbon steel and cast iron parts with effective thickness below 20mm.
3 Suitable for quenching cooling of various alloy steels and alloy cast irons.
4PQP is mainly used for workpiece quenching with complex shapes and strict deformation requirements.
5 This medium is a typical water-soluble quenching medium that replaces oil quenching.
[Precautions for use]
1 carbon steel, such as 45, T8, T10 using 5% to 10% by volume.
2 low carbon low alloy steel such as 20Cr, 20CrMnTi and other medium carbon low alloy steel such as 40Cr, 35CrMo, 42CrMo and spring steel 65Mn, 60Si2Mn, etc., 12% ~ 16% PQP mother liquor is added to the water.
3 high alloy steel such as Cr12 type, 4Cr5MoSiV, 3Cr2W8v, etc., 18% ~ 22% mother liquor is added to water.
4 The aqueous solution prepared with PQP can be used at <65 ° C. During the quenching process, the solution is required to be in a stirred flow state.
093 PQAT quenching agent
[Introduction] It is a polyglycol polymer, some of which are different from PQGP. The supply state is also a viscous liquid, the cooling capacity is adjustable, the quenching liquid prepared by using water is not precipitated, tasteless, pollution-free, smoke-free without quenching, and has a long service life and low loss, and the parts are quenched in the aqueous solution. It is not easy to rust, and the subsequent surface treatment (blue, electroplating) is easy to carry out, overcoming the shortcomings of oil quenching.
The medium concentration can be easily measured to reduce deformation and prevent quenching. In addition to quenching and quenching medium, this product can also be used as a cooling medium for surface quenching, and is also the preferred cooling medium for aluminum alloy solution treatment.
ã€The main purpose】
1PQAT is mainly used in well furnaces, mesh belt furnaces, quenching after carburizing and carbonitriding.
2 High- and medium-frequency surface hardening spray quenching or dip quenching: carbon steel and non-alloy ductile iron. Add 3%~4% PQAT mother liquor in water during high-frequency quenching and 5%~8% PQAT mother liquor in water during medium-frequency quenching.
For medium carbon low alloy structural steels such as 40Cr, 40Mn, 35CrMo, 42CrMo, etc., 5% to 8% PQAT mother liquor should be added to the water.
3 mesh belt furnace, well furnace, etc. after carburizing or carbonitriding quenching: low carbon steel cooling when adding 3% ~ 5% PQAT mother liquor, 20Cr, 20CrMo, 20CrMnTi, 20CrMnMo, etc., adding 10% in water ~l5% PQAT mother liquor.
4 Quenching during quenching and tempering: 3% to 5% PQAT mother liquor is added to water during cooling of medium carbon steel and ductile iron, medium carbon low alloy structural steel such as 40Cr, 40Mn, 35CrMo, 42CrMo, etc., 10%~l5 should be added in water. %PQAT mother liquor.
5 spring steel quenching: 60, 70, 80 steel, adding 4% ~ 8% PQAT mother liquor in water. 65Mn, 60Si2Mn steel, etc., 10% to 15% PQAT mother liquor is added to water.
6 Tool steel quenching: medium carbon, high carbon steel, adding 4% to 8% PQAT mother liquor in water. High carbon low alloy tool steels such as 9SiCr, CrWMn, GCrl5, etc., 12% to 18% PQAT mother liquor is added to water. High-alloy tool steels such as Cr12 (MoV), H13, etc., 15% to 25% PQAT mother liquor is added to the water.
7 Aluminum alloy quenching: LYll, LYl2 and other deformed aluminum plates, rods, forgings and cast aluminum such as ZL101, 105, 205, A356, etc., adding 8% to 10% PQAT mother liquor in water.
The 860Si2Mn thick plate (thickness 13mm) leaf spring can not guarantee the specified hardness under the oil quenching condition (quenching state>59HRC, tempering state 42～47HRC), and can not guarantee the qualified structure. Quenching and cooling with PQA quenching agent at a concentration of 10% to 20% (mass fraction) ensures the hardness and excellent structure after quenching and tempering.
[Precautions for use]
1 A certain concentration of quenching liquid, after a period of use, when the concentration of the medium is measured with a sugar meter, the solution is kept within the optimal concentration range.
2 When quenching, the cooling medium is required to be in a circulating state.
3 The optimum range of media use is 10 to 45 ° C, and it can also be used in the range of 5 to 70 ° C.
094 PQG slow cooling type quenching agent
[Introduction] Water-soluble ethylenic polymer quenching agent, the cooling capacity is adjustable, and the medium concentration can be easily determined. The supply state is a yellowish viscous transparent liquid with good water solubility. When the aqueous solution cools the metal, it is non-corrosive to the quenched workpiece and has no irritating odor. When the polymer remaining on the surface of the workpiece is tempered at 300 ° C or higher, it is decomposed into carbon, nitrogen, and hydrogen, and is harmless to the environment. The greater the concentration of the solute in the aqueous solution, the smaller the cooling capacity of the quenching medium. When 18% PQG mother liquor is added to water, the cooling capacity of the medium is smaller than that of N32 mechanical oil, and the cooling rate between air cooling and oil cooling can be obtained. Therefore, this quenching liquid does not have an aging problem, and is excellent in anti-foaming property.
Use this media to reduce distortion and prevent quenching. After the workpiece is cooled, it will not rust and it is easy to carry out subsequent surface treatment. Odorless, non-polluting, smoke-free, no fire hazard, normal consumption is less than oil.
ã€The main purpose】
1 Mainly used for quenching of tempering parts and tool cutting tools. Medium carbon low alloy structural steel, spring steel, adding 6%~12% mother liquor in water; high carbon low alloy tool steel, adding 8%~12% mother liquor in water; such as pressure vessel, adding 20% ​​mother liquor to 35CrMo product water; 35CrMo, Add 7% to 10% of mother liquor to 40CrMo and other forgings.
2 Mainly used for the overall immersion quenching and medium frequency jet quenching of the workpiece, and the overall quenching of the workpiece requiring less cooling capacity than the oil medium.
3 carbon steel (including medium and high carbon) is added with 1% to 5% PQG mother liquor in water.
4 low carbon low alloy steel such as 20Cr, 20CrMo, 20CrMnTi, etc., adding 5% to 8% PQG mother liquor in water.
5 medium carbon low alloy steel such as 40Cr, 30CrMo, 38CrMoAl, 42CrMo, etc., should be added 6% ~ 12% PQG mother liquor in water.
6 stainless steel 1Cr13, 2Cr13, etc., adding 10% to 14% PQG mother liquor in water.
7 high chromium cast iron, alloy tool steel, alloy ductile iron, 55SiMnMoV, 4Cr5MoSiV, 3Cr2W8V, etc., large hardenability workpiece, 14% ~ 18% PQG mother liquor added in water.
Medium-frequency jet quenching of 842CrMo, 40Cr, etc., adding 5% to 8% PQG mother liquor in water.
[Precautions for use]
1 The cooling rate of the aqueous solution decreases as the temperature of the medium increases (as opposed to the oil medium), so the medium temperature should normally be controlled at <60 °C.
2 During the quenching production process, the medium is required to be in a stirred flow state, and the concentration is greater, and the stirring should be stronger.
095 PQK fast cooling type quenching agent
[Introduction] The supply state is a liquid with a certain viscosity, which is infinitely dissolved with water. The cooling capacity is adjustable, the medium concentration can be easily determined, and the deformation can be reduced to prevent quenching. After the workpiece is cooled, it will not rust and it is easy to carry out subsequent surface treatment. It is odorless, non-polluting, smokeless, and has no fire hazard. The normal consumption is less than oil.
[Quenching and cooling characteristics] When a certain concentration of the medium is added to water, a large cooling capacity can be obtained, the concentration of the solute in the aqueous solution is increased, and the cooling ability of the quenching medium is enhanced. However, the cooling rate below 250 °C is very small, close to the cooling rate of the oil.
ã€The main purpose】
1PQK is mainly used for quenching of copper parts with large diameter, large thickness or poor hardenability. Carbon steel, adding 5% to 10% of mother liquor in water; alloy structural steel, adding 8% to 15% of mother liquor in water.
2 The quenching agent is mainly used for the whole quenching of carbon steel parts and the medium-carbon low-alloy structural steel such as 40Cr, 35CrMo, 42CrMo large-section (effective thickness or diameter >80mm) workpiece, requiring hardening of hardening depth or even all hardening. cool down.
3 Commonly used low carbon steel, medium carbon steel and high carbon steel workpieces, adding 5% to 15% PQK mother liquor in water. For example, low carbon steel carburizing parts, high carbon steel T8, T10 workpieces, usually 10% PQK mother liquor is added to water.
4 large-section workpieces, when the effective thickness is >80mm, 15%-18% PQK mother liquor is added to the water.
Large cross-section medium carbon low alloy structural steel with 10% to 15% PQK mother liquor added to water. For example, quenching and cooling 35CrMo steel large container cylinders, adding 10% PQK mother liquor to the water.
[Precautions for use]
1 The quenching medium is used at a temperature of 5 to 70 °C.
2 In order to uniformly cool the cooling medium, the medium should be in a flowing state during quenching.
3 To ensure the effective concentration, the medium concentration should be checked regularly.
096 PQL quenching agent
[Introduction] Same as 095 PQK fast cooling type quenching agent.
[Quenching agent composition] Mother liquor density] 1.18 ~ 1.2lg / cm ^ 3; pH 6.5 ~ 7.0. The quenching and cooling characteristics of the aqueous solution of this product are excellent. For example, when the (15% PQL mother liquor is added in water, the quenching and cooling characteristics are similar to those of the quenching oil; when 20% PQL mother liquor is added to the water, the cooling is similar to the mechanical oil of No. 32.
ã€The main purpose】
1 For carbon steel, alloy steel and tool steel.
2 quenching and cooling of large cylinder containers.
3 carbon steel: 8% to 10% mother liquor in water; alloy steel: 10% to 15% mother liquor in water; high alloy tool steel such as lCrl3, 4Crl3 and wear-resistant steel wear-resistant cast iron: 20% to 25% mother liquor added to water .
4 Mainly used for the overall quenching of carbon steel small workpieces and medium carbon low alloy structural steels, such as 40Cr, 35CrMo, 42CrMo, 40Mn2 and other workpieces.
5 quenching and cooling of copper with high hardenability such as medium carbon and high carbon high alloy, such as quenching and cooling of 4Cr5MoSiV and Cr12Mo(v).
[Precautions for use]
1 Recommended concentration: 10%~15% mother liquor in small medium and high carbon steel; high hardenability steel, such as Cr12MoV and high chromium cast iron workpiece, adding 20%~25% PQL mother liquor in water.
2 Medium preparation: When the optimum concentration of quenching medium is determined, the required volume ratio of water should be put into the quenching tank, then pour the required volume ratio of PQL quenching agent mother liquid, and stir well to make the mother liquid and water uniform. Dissolved. The volume ratio (concentration) of the quenching agent in water can be calculated as the height of the quenching tank.
3 quenching tank: quenching tank steel plate or cement structure of PQL polymer quenching agent, it is required to set pump stirring or propeller stirring device.
4 Determination of the concentration of the medium: The instrument for measuring the concentration is a sugar meter (refractometer), and the concentration of the medium can be determined.
097 PAG9020 quenching fluid
[Introduction] It has reverse solubility; it can be miscible with water in any proportion, and the cooling rate can be adjusted arbitrarily; the quenching hardness and quenching layer depth are uniform, which greatly reduces the quenching deformation of the workpiece, avoids the risk of quenching and soft spots; non-toxic and harmless, Clean and environmentally friendly during quenching; not easy to age, deteriorate, and have a long service life.
The medium contains various additives such as anti-rust, anti-corrosion, defoaming, sterilization and the like. By varying the concentration of the quenching liquid, the temperature of the solution and the degree of agitation, different cooling rates can be obtained to meet different cooling capacity requirements.
When the concentration (mass fraction) exceeds 5%, the workpiece has good rust resistance after quenching.
[Typical physical and chemical properties] The typical physical and chemical parameters are shown in Table 2-28.
[Quenching and Cooling Characteristics] The cooling rate of PAG9020 is between oil and water, filling the gap between the two. Therefore, according to the material, shape and heat treatment requirements of the workpiece, different concentrations of PAG9020 can be formulated to obtain a quenching liquid with any cooling ability from tap water to quenching oil, and the heat treatment problem that the water quenching is easy to crack and the oil quenching is not hard is solved.
ã€The main purpose】
1 can be used for low, medium and high carbon steel, such as 45, 65, T8, T10, etc.; carburizing, carbonitriding steel. Such as A3, 10, 15Cr, 20CrMnMo, 20CrMnTi and the like.
2 medium and low carbon alloy steels, such as 40Cr, 42CrMo, 38CrMoAl, 40CrMnMo, 60Si2Mn, 55SiMnVB, and the like.
33%~8% PAG9020 quenching liquid is suitable for induction hardening. The low hardenability steel (low and medium carbon steel) is quenched as a whole, which can avoid the quenching soft point of the workpiece and the danger of deformation and cracking.
48%~15% PAG9020 quenching liquid is suitable for steels requiring high mechanical properties. It is an ideal quenching and cooling medium for spring steel and alloy structural steel.
510%~25% PAG9020 quenching liquid is suitable for solution quenching of aluminum alloy and wrinkled bronze.
[Precautions for use]
1 Recommended optimum solution temperature: 20 ~ 50 ° C, should not be higher than 60 ° C. The temperature control method can be carried out by using a cooling tower or a heat exchanger.
2 Stirring quenching liquid is a must, pump circulation or propeller stirring.
3 The quenching medium can be mixed with the PAG water-based quenching liquid, and generally does not have a negative impact.
4 On-site production concentration detection can be used to test the concentration of PAG9020 quenching liquid by using a sugar refractometer. The product of the refractometer reading multiplied by 2 is the concentration of the quenching liquid, which is easy to use.
5 In actual use, the quenching liquid is inevitably contaminated, resulting in a “false concentration†(ie, the reading concentration is higher than the true concentration). In order to prevent the deformation of the workpiece caused by excessive deformation or even quenching, please use the quenching liquid for six months, and then send 2000 mL of the solution sample to the media manufacturer to check the accuracy of the concentration.
098 P6100 slow water-based quenching liquid
ã€Introduction】 Shenzhen Dejili Chemical Co., Ltd. POLYQUENCH 6100 is abbreviated as P6100. It is made up of a very stable and non-reverse-soluble polymer and a unique composite additive. It is specially used to replace mineral-based quenching oil. .
In normal production and use, generally only need to replenish the original liquid (or tap water), the cooling performance of the quenching liquid can be kept unchanged for a long time.
The quenching liquid has the basic conditions for replacing the mineral oil-based quenching medium, and greatly expands the application range of the water-soluble quenching medium. For those materials with good hardenability, quenching or controlled cooling can be carried out in a suitable concentration of P6100 quenching liquid to replace mineral-based rapid (or high-speed) quenching oil which is prone to fire and smoke pollution.
[Quenching and cooling characteristics] When the red hot workpiece enters the P6100 quenching liquid, the quenching liquid pool near the surface of the workpiece is subjected to high temperature, so that the water therein evaporates rapidly and escapes, and the high concentration polymer concentrate which loses a large amount of water adheres to the surface of the workpiece. A layer of polymer film with good thermal insulation is formed, which serves to reduce the cooling rate of the workpiece.
Compared with the film formed by the PAG quenching liquid, especially in the low temperature stage during the cooling process, the P6100 quenching liquid has higher film stability on the workpiece and has better heat insulation effect, so lower lower temperature can be obtained. Cooling rate. It has the closest cooling performance to mineral-based quenching oil at a concentration range of about 10% or more. In addition, the P6100 quenching liquid in the range of 10% to 15% concentration (mass fraction) also has a very short vapor film stage.
[Typical physical properties] The typical physical and chemical parameters are shown in Table 2-29.
ã€The main purpose】
1 For those materials with good hardenability, the medium can be quenched and cooled instead of mineral oil.
2 High-strength steel pipes suitable for high-alloy structural steels such as 40CrNiMo and 40CrMnMo, large-scale castings, forgings, and even high-carbon and high-manganese rail materials.
3 is also suitable for high alloy die steel such as P20 (3Cr2Mo), 718 (3Cr2Mo+Ni), 4Cr13, etc., various roll materials (such as 9Cr2Mo, etc.).
4 Replace mineral-based fast (or high-speed) quenching oils that are prone to fire and smoke pollution.
[Precautions for use]
(1) Concentration control In actual use. In order to obtain a quenching cooling rate similar to a mineral-based quenching oil, the quenching liquid concentration (mass fraction) is generally in the range of 10% to 15%.
The quenching liquid can obtain the cooling performance between water and oil at a lower concentration condition, so it can completely replace the high concentration of PAG quenching liquid. Generally, 8% to 10% of P6100 can replace 15% or more. PAG type quenching liquid.
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