金刚石圆锯片用铁基与钴基结合剂之比较

comparison between Iron--Base and Cobalt--Base Metallic Bonds for the Use of Circular Diamond Saw Blade

本文通过理论分析和有关试验,证明了铁基金属结合剂的机械性能、抗磨损性和对金刚石的把持力能够满足加工花岗石用孕镶刀头的使用要求。当采用抗压强度为13—15Kg的金刚石时,用铁基结合剂制造的大直径金刚石圆锯片可获得不亚于甚至略优于钴基结合剂锯片的锯切性能,而其制造成本相对于后者则有较大的降低。

By theoretical analysis and field testiag on its mechanical behaviour, wear resis- tance, and diamond retention capacity, iron--base metallic bonding agent was proved to be able to satisfy the demand of making diamond imprgnated circular saw balde for cutting gran- ite. When the diamond with a compressive strength of 13--15kg was adopted, a large diame- ter diamond circular saw blade made of iron--base agent was able to acquire a cutting perfor- tnance as good as or even better than that of cobalt--base one; while its cost of production was much cheaper.