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Plastic granulator machine screw extruder repair method

Oct 24, 2014

Screw repair 

1, the screw is broken, according to the actual inside diameter of the cylinder to be considered, according to the normal gap and the barrel outer diameter of the screw is given a new manufacturing deviations. 

2, reduced diameter threaded screw wear surface treated, thermal spraying wear-resistant alloy, and then by grinding to size. This method is generally a professional spray processing plant repair, the cost is still relatively low. 

3, the threaded portion of the screw in wear resistant alloys. According to the degree of wear surfacing screw 1 ~ 2mm thick, then screw grinding to size. Such wear-resistant alloy composed of C, Cr, Vi, Co, W, and B and other materials to increase the resistance to wear of the screw and corrosion capability. The high cost of professional welding plant for such processing, in addition to the special requirements of the screw, the general rarely used. 

4, the screw can also be used to repair the surface hard chromium plating method, chromium is abrasion and corrosion resistant metal, but hard chromium layer is relatively easy to fall off. Hebei Jing Ding wear-resistant materials Co., Ltd. welcome friends come to visit negotiate cooperation! 

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