How to repair the wear of the barrel of the automatic bottle blowing machine?
The heat treatment hardness of the surface of the inner hole is higher than the surface heat treatment hardness of the screw when the barrel of the automatic bottle blowing machine is manufactured. Therefore, under normal circumstances, the wear and maintenance of the barrel is later than the screw maintenance. Machine wear is mainly due to the large bore diameter due to long-term wear. The repair method is as follows.
â‘ If the diameter of the inner hole of the machine is increased, but there is a certain thickness of the nitriding layer, the hole of the machine barrel can be re-grinded. At this time, the inner bore of the barrel gets a new diameter size. Then, according to this newly processed inner hole diameter, re-formulate the screw. The gap between the newly manufactured screw and the inner hole of the barrel and the deviation of the diameter of the inner hole of the barrel.
â‘¡For the barrel with serious inner hole wear, the inner hole should be machined first to remove the rough and worn inner hole surface to produce a new simplified inner hole diameter, and then re-cast the wear-resistant alloy, the thickness is about 1 --- 2mm, then machined and ground to the required bore diameter of the barrel.
â‘¢If the wear of the barrel of the bottle blowing machine is only in the front part of the barrel-the homogenization section of the screw, the repair of this barrel can only turn the severely worn inner hole of the section, and then match a nitrided alloy Steel sleeve, and then process the inner diameter of the steel sleeve to the required size.
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