EN 
简体中文The bimetal screw barrel is quenched as a whole. Applicable to all kinds of added glass fiber, plastic and PPA, PO and other materials, special engineering plastics. It solves the trouble of chrome-plated screws often falling off from the chrome-plated layer for end users, fully guarantees the environmental protection requirements of the product, and is your ideal helper.
Other screw barrels can improve fatigue resistance. Due to the large compressive stress formed in the nitrided layer, the screw barrel exhibits higher fatigue limit and lower notch sensitivity under alternating load, and the fatigue limit of the screw barrel can be increased by 30% after nitriding.
It can also improve the corrosion resistance of the workpiece. Because nitriding forms a dense and chemically stable phase layer on the surface of the screw, it has high corrosion resistance in water vapor and alkaline solution. This nitriding method is simple and economical. Can replace galvanizing, bluing and other chemical coatings.
In addition, part of the screw barrel is nitrided, which not only improves wear resistance and corrosion resistance, but also reduces the viscosity of the machine and screw barrel. Mixing phenomenon, prolong the working life of the machine.
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