磁力式硬度计是近些年出现的一种新型便携式硬度计, 可用于现场检测大型热处理零件的本体硬度。主要介绍了磁力式硬度计的原理与结构、国内外典型产品、相关国内外标准以及应用实例。实际应用表明: 磁力式硬度计采用布氏及洛氏硬度试验原理, 具有可靠的量值传递关系, 其测试精度高, 操作简便, 为现场快速、精确测试大型金属零件硬度提供了重要的检测手段; 磁力式便携硬度计的广泛使用将显著地促进某些行业或企业的技术进步。

Magnetic hardness tester which appeared in recent years was a new type of portable hardness tester, and it can be used to test the hardness of large heat treatment parts in the field. The principle, structure, typical products at home and abroad, relative domestic and foreign standards, and application instances of magnetic hardness testers were introduced. The practical application shows that the magnetic hardness tester which applies Brinell and Rockwell test principle has reliable traceability. It has features of high accuracy and simple operation, providing important test methods for field fast and accurate hardness testing of large metallic parts. The wide application of magnetic hardness tester will dramatically improve the technical progress in some certain industries and enterprises.