日本两家公司共同研究出一种以碳化钨系超硬质合金粉末为原料,采用同注塑成形法制造金属零件的新技术。该技术可以生产过去用切削加工不能制造的形状复杂的精密零件,同时还可以简化定型工序,降低生产成本。其作法是:首先将直径约2μm的碳化钨、钴合金粉末和树脂系粘合剂混合并使其颗粒化,然后放入注射模塑成型机中,进一步加热并喷溅 The two companies in Japan jointly developed a new method of making metal parts made of tungsten carbide-based super-hard alloy powders using the same injection molding method. The technology enables the production of precision-machined precision parts that could not be machined in the past, while simplifying the setting process and lowering production costs. This is done by first mixing and granulating the tungsten carbide having a diameter of about 2 m, the cobalt alloy powder and the resin-based binder, and then putting it into an injection molding machine, further heating and splashing