制动片的硬度

[中文适用范围]： 硬度测量用于对制动衬片的配方和加工的一致性进行质量控制检查。这种硬度方法是非破坏性的。注意：该方法不是摩擦力水平的测量。硬度和硬度范围是每种配方的特征；因此@必须为每个配方建立可接受的值和范围，并且可能会受到加工的影响。注：烧结粉末金属衬里的硬度通常用洛氏表面硬度设备测定。 （参见 ASTM B 347） 目的 测量制动衬片的洛氏硬度。 A。洛氏硬度测量渗透深度。 b.戈根硬度测量材料在负载下的压缩程度。 （参见 SAE J379） [外文原描述]： Hardness measurements are used as a quality control check of the consistency of formulation and processing of brake linings. This hardness method is nondestructive.NOTE—This method is not a measure of friction level.The hardness and the range of hardness are characteristic of each formulation; therefore, the acceptable values and ranges must be established for each formulation and may be affected by processing.NOTE—The hardness of sintered powder metal lining is usually determined with Rockwell superficial hardness equipment. (See ASTM B 347)Cross Reference: ASTMB347,ASTMD785,ASTME18,J379_201702,JISD4421