The design of injection molding products (referred to as plastic parts, the same below) has a major and important relationship to the quality and use of plastic parts. Generally speaking, the following requirements should be considered in the design of plastic parts.
(1) It is very important to meet the requirements for use to meet the requirements of the plastic parts. It is also the most important step in the design. If the analysis of the plastic parts is incomplete or even wrong, the plastic parts will not meet the requirements for use. This requires the correct analysis of the use of plastic parts, this analysis should be quantitative rather than qualitative, such as the strength requirements of the computer casing, should be correctly defined as falling from a height of 1 m to concrete at -20 ° C No damage occurs on the ground, rather than simply describing the strength.
Secondly, considering the bearing conditions, the plastic parts are subjected to the force during assembly, transportation, storage and use. The plastic parts should be able to withstand these forces under predetermined conditions without causing damage to the plastic parts. In addition, take into account the unexpected conditions that may occur under the most severe conditions.
Furthermore, considering environmental conditions, plastic is a material that is very sensitive to environmental conditions. Therefore, it is encountered in the conditions of temperature, relative humidity, chemical medium and radiation during production and use, as well as during production, assembly and storage. The impact of environmental conditions on performance should be considered. In short, all kinds of situations that plastic parts may encounter in the future use should be fully familiar and considered.
(2) The simplified plastic parts that are conducive to the mold structure are all made by the mold. The cost of the mold is very high, the construction period is long, and the technical level is high. Under normal circumstances, the use of plastic parts is the same, but the structure of the plastic parts However, there are great differences, which have a great influence on the ease of manufacturing and the manufacturing cycle. Especially for plastic parts with holes, threads, inserts, convex and concave surfaces, if the plastic parts are not properly designed, it will not only complicate the mold structure, but also make it difficult to manufacture molds that can form plastic parts.
In addition, the processing technology of the mold should be considered: First, the designed parts can be machined or otherwise processed more conveniently; second, the processed parts are guaranteed to have the expected performance and service life; Third, the parts of the mold should be versatile and interchangeable for easy maintenance. Fourth, for parts with anti-corrosion requirements, materials with anti-corrosion properties or anti-corrosion measures such as chrome plating and nickel plating should be used.
(3) Try to reduce the cost and reduce the cost, and increase the efficiency is the goal that every enterprise is striving for. Reducing the cost is a systematic project, and it requires a multi-faceted and multi-part cooperation. In the design of plastic parts, the materials should be carefully selected first, mainly according to the purpose of use. Under the conditions that meet the requirements of use, the plastics with low price are selected. Because the price of plastics varies greatly, it is There is great potential for digging; secondly, the plastic structure is simplified and easy to manufacture with simple molds, which will also greatly reduce production costs. Of course, various factors are not isolated. They can restrict each other and influence each other. For example, Pa66 is a high-quality raw material, but because of its good mechanical properties, the thickness of plastic parts can be reduced to reduce the consumption of high-priced materials, and the processing cycle. It can also be shortened, thereby reducing costs.
High temperature is easy to cause circuit safety problems, and the instrument in the circuit is no exception. In summer, as far as the frequency converter is concerned, which is indispensable for equipment control and speed regulation, the hot weather is the heat and hard injury of the frequency converter. A large number of studies and practices have shown that the failure rate of the converter will increase with the increase of temperature, the service life will decrease with the increase of temperature, and the service life of the converter will be halved with the increase of ambient temperature by 10 degrees. For this reason, high temperature is coming, how we use Fluoride Solution to effectively cool down? Please contact us by email.
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