Novelty Trading Development Co.,Ltd
Add:R507, 95 Business Mansion, Jiangnan Road, Ninbo City, China
Contact us:Jack Chen
1, the screw of the twisting to be based on the actual internal diameter of the barrel to consider, according to the normal clearance of the barrel of the new screw to make the outside diameter deviation.
2, wear screw diameter reduced thread surface after treatment, thermal spray wear-resistant tungsten carbide alloy, and then grinding to the size.
3. Wear-resisting tungsten carbide alloy in threaded part of screw. According to the degree of screw abrasion surfacing 1~2mm thick, then grinding screw to the size. This wearable tungsten carbide alloy consists of C, CR, VI, CO, W and B, and increases the abrasion resistance and corrosion resistance of the screw.
4, repair screw bottom diameter for electroplating hard chromium treatment, chromium is also wear-resistant and corrosion-resistant metals, but hard chromium layer is easier to shed.
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