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HR-150A型洛氏硬度计(以下简称“硬度计”)主要用于测定淬火后钢件及硬质合金等金属材料的洛氏硬度,还可测定有色金属的硬度,因此用途非常广泛。但是由于硬度计的误差来源较多,产生故障的原因也较多,维修起来比较困难。笔者根据多年积累的维修经验,以该型硬度计为例,简述其常见故障及维修。
HR-150A Rockwell hardness tester (hereinafter referred to as “hardness tester”) is mainly used for determining the Rockwell hardness of quenched steel and carbide and other metal materials, but also for the determination of non-ferrous metal hardness, so the use of a very wide range . However, due to the hardness of the sources of error more, there are many causes of failure, maintenance more difficult. The author based on years of accumulated experience in maintenance, to the type of hardness tester, for example, a brief description of its common failures and maintenance.