标准名称：	宽调速永磁式直流伺服电动机通用技术条件
中标分类：	电子元器件与信息技术 >> 电子元件 >> 电子设备专用微特电机
ICS分类：	电气工程 >> 旋转电机 >> 旋转电机综合
发布日期：	1992-02-25
实施日期：	1992-10-01
首发日期：
作废日期：
出版日期：
页数：	30页

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Product Code:SAE J444
Title:Cast Shot and Grit Size Specifications for Peening and Cleaning
Issuing Committee:Surface Enhancement Committee
Scope: This SAE Recommended Practice pertains to blast cleaning and shot peening and provides for standard cast shot and grit size numbers. For shot, this number corresponds with the opening of the nominal test sieve, in ten thousandths of inches, preceded by an S. For grit, this number corresponds with sieve designation of the nominal test sieve with the prefix G added. These sieves are in accordance with ASTM E 11.The accompanying shot and grit classifications and size designations were formulated by representatives of shot and grit suppliers, equipment manufacturers, and automotive users.
Rationale: This SAE Recommended Practice pertains to blast cleaning and shot peening and provides for standard cast shot and grit size numbers. For shot, this number corresponds with the opening of the nominal test sieve, in ten thousandths of inches, preceded by an S. For grit, this number corresponds with sieve designation of the nominal test sieve with the prefix G added. These sieves are in accordance with ASTM E 11.The accompanying shot and grit classifications and size designations were formulated by representatives of shot and grit suppliers, equipment manufacturers, and automotive users.