Repair and refurbishment of old screw barrels

Repair and refurbishment of old screw barrels

At present, the content of glass fiber in various engineering plastics on the market is constantly increasing, as well as the addition of various fillers, modifiers, etc. The production of plastics such as electric wood and iron powder is prone to wear and tear on machine barrels and screws, resulting in high costs for equipment replacement parts in various enterprises.

Our company has a set of equipment and mature technology for repairing barrel screws, turning waste into treasure. We refurbish old barrel screws, regardless of the concentricity or clearance of the barrel and screw after refurbishment. The smoothness and glossiness of the inner hole of the barrel and the outer diameter of the screw are almost the same as those of the new barrel and screw, and they are more wear-resistant and durable.

Processing technology:

The inner hole of the barrel is reamed, ground smooth, and then subjected to nitrogen treatment, or due to the significant wear of the old barrel's inner hole, alloy is used to make the inner hole meet the tolerance requirements; The outer diameter of the screw is easy to rough grind and smooth, and the surface is made of high nickel alloy Nitriding, precision grinding and other processes are used to grind smoothly and match the inner hole of the barrel (if necessary, the screw can be plated with hard chromium). Make the old barrel screw achieve a more wear-resistant and durable effect than the new product.