双金属材料及其在螺杆、料筒中的应用

Two-metals Laminated Material and Its Application in the Screw and Barrel

双金属材料是在普通钢材(或者低合金钢)表面上复合一层耐磨合金而得到的材料,具有优良的耐磨性和耐腐蚀性,是制造塑料成型设备螺杆、料筒的一种十分优良的材料。通过国内外众多实例的对比,描述了双金属材料螺杆、料筒较之氮化钢螺杆,料筒的明显优势,并以实际案例说明了双金属材料在螺杆、料筒的修复中,同时具有修复成本低、使用效果好的优点。

Two-metals laminated material is composed by coating a layer of abrasion resistance alloy on the surface of normal steel (or low-alloy steel), which possessed of good abrasion resistance and corrosion resistance and can be used to make the screw and barrel of the polymer-processing machine. In this paper, the performance of the screw and barrel made of two-metals laminated material is compared with which made of nitrogenous steel. The application of the two-metals laminated material in China and abroad is introduced. It is proved that two-metals laminated material can be used as the reparing material for the screw and barrel with the advantage of low-cost and good effect.