刹车片比重

[中文适用范围]： 比重是一种无损检测，用于检查制动衬片配方和加工的一致性。每种配方的比重和比重范围都是特有的，因此制造商必须为每种配方确定可接受的值或范围。比重本身并不能说明材料的使用性能。烧结金属粉末摩擦材料@特别是那些具有钢背衬构件@的比重通常确定得有些不同。参考ASTM B 376。目的——建立确定制动摩擦材料比重的统一程序。 [外文原描述]： Specific gravity is a nondestructive test used as a quality control check of the consistency of formulation and processing of brake lining. The specific gravity and the range of specific gravity are peculiar to each formulation and, therefore, the acceptable values or range must be established for each formulation by the manufacturer. Specific gravity alone shows nothing about a materials in use performance.The specific gravity of sintered metal powder friction materials, particularly those which have steel backing members, is usually determined somewhat differently. Reference ASTM B 376.Cross Reference: ASTMB376