论文部分内容阅读
前言目前,我国的航空、航海与电测仪表用的轴尖,绝大部分都是用钴-钨合金(Co75W25)和3J23合金(即Co40NiCrMoW)制造的。钴-钨合金的硬度高(Rc60以上)、耐磨、抗冲击,但塑性不好,易脆断,极易锈蚀和氧化,还具有磁性,由于生产难度大,不易采用多次熔炼提纯来消除各种夹杂物,使消除由夹杂物造成的轴尖斑点的企图受到限制。钴40合金是近10年来才被采用的轴尖材料,其特点是具有耐腐蚀、抗氧化、
Foreword At present, most of the axles used in aviation, navigation and electrical measuring instruments in our country are made of cobalt-tungsten alloy (Co75W25) and 3J23 alloy (that is, Co40NiCrMoW). Cobalt - tungsten alloy high hardness (Rc60 and above), wear resistance, impact resistance, but poor plasticity, brittle brittle fracture, corrosion and oxidation is extremely easy, but also has a magnetic, due to the production of large difficulties, not easy to use multiple smelting purification to eliminate Various inclusions make the attempt to eliminate the shaft spot caused by inclusions limited. Cobalt 40 alloy is the shaft material that has been adopted for nearly 10 years. It is characterized by corrosion resistance, oxidation resistance,