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Bimetallic screw barrel pictures & maintenance
Bimetallic screw barrel pictures & maintenance

Bimetallic screw barrel pictures & maintenance

Barrel screw abrasion mainly occurs in the using process, especially when the running time is long or it is used to produce fully-filled or glass fiber reinforcement materials for a long time, causing the inner diameter of the barrel enlarges. Because the inner wall of the barrel is harder than screw, the abrasion of the barrel is slower than screw.

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Bimetallic screw barrel pictures & maintenance Details

Barrel screw repairing tips:
1. The diameter of the barrel enlarges due to abrasion, if there still has nitrided case, you can directly grind the barrel bore to achieve new diameter, then equip new screw depend on the new diameter.
2. Through machining, casting new alloy to the barrel bore, control the thickness within 1 to 2 mm, and then finish machining into needed diameter.
3. Generally, the homogenizing section of the barrel abrades faster than other sections, so you can finish the homogenizing section and equip it with a nitrided alloy bush, the bore diameter should be in accordance with screw diameter, but leave certain tolerance clearance.
Label:Barrel screw

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