金属布氏硬度试验中使用的压头由压头球体、压头杆及压头套组成。其中压头球体是试验的标准附件之一,球体质量对于得到准确的试验结果十分关键。除球体的直径公差和表面质量对试验结果有影响外,球体的硬度十分重要,尤其对于高硬度材料的测试,影响更明显。随着工业和材料学的发 The metal head used in Brinell hardness test consists of indenter ball, indenter and indenter. Among them, the head ballast is one of the standard accessories for testing, and the ball quality is crucial for obtaining accurate test results. In addition to the sphere diameter of the ball diameter tolerance and surface quality of the test results have an impact, the ball hardness is very important, especially for the test of high hardness materials, the impact is more obvious. With the development of industry and materials science