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What is the repair method of Screw and Barrel for Rubber Extruder
The inner surface hardness of Screw and Barrel for Rubber Extruder is higher than that of the screw, and its damage comes later than the screw. The scrap of the barrel is the increase in the diameter of the inner diameter due to time wear. The repair of Screw and Barrel for Rubber Extruder is as follows:
1. For the barrel with increased diameter due to wear, if there is a certain nitriding layer, the barrel hole can be directly bored and ground to a new diameter size, and then a new screw can be prepared according to this diameter.
2. The inner diameter of the barrel is machined and trimmed to re-cast the alloy, the thickness is between 1~2mm, and then finished to size.
3. The Screw and Barrel for Rubber Extruder tells you that the homogenization section of the barrel wears faster under normal circumstances. This section (take 5~7D long) can be trimmed by boring, and then equipped with a nitrided alloy steel bushing. The diameter of the hole refers to the diameter of the screw and is left in the normal matching gap for processing and preparation.
Screw and Barrel for Rubber Extruder tells you the two important parts of screw and barrel, one is a slender threaded rod, and the other is a small and long hole with a relatively small diameter. Their machining and heat treatment processes are more complicated and the accuracy is guaranteed. Both are more difficult. Therefore, whether to repair or replace these two parts after wear must be analyzed from an economic point of view. Screw and Barrel for Rubber Extruder tells you that if the repair cost is lower than the cost of replacing a new screw, you will decide to repair it. This is not necessarily the correct choice. The comparison between repair cost and update cost is just one aspect. Screw and Barrel for Rubber Extruder tells you that you also need to look at the ratio of repair cost and screw use time after repair to update cost and update screw use time. It is economical to adopt a scheme with a small ratio, and it is the right choice.