EN 60793-1-54-2003 光纤.第1-54部分:测量方法和试验过程.Υ射线

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标准名称：	案(事)件现场勘验信息分类与代码 第6部分:物证形态代码
发布日期：	2007-03-30
实施日期：	2007-06-01
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Product Code:SAE J2315
Title:Wheel Nut Seat Strength
Issuing Committee:Wheel Standards Committee
Scope: The purose of this test is to evaluate the axial strength of the nut seat of wheels intended for use on passenger cars, light trucks, and multipurpose vehicles. In addition, a minimum contact area is recommended to ensure enough strength for the rotational force in tightening a nut against the nut seat. while this test ensures the minimum strength of the nut seat, the wheel must also have a degree of flexibility. this flexibility, as well as bolt tension, are important to maintain wheel retention.
Rationale: The purose of this test is to evaluate the axial strength of the nut seat of wheels intended for use on passenger cars, light trucks, and multipurpose vehicles. In addition, a minimum contact area is recommended to ensure enough strength for the rotational force in tightening a nut against the nut seat. while this test ensures the minimum strength of the nut seat, the wheel must also have a degree of flexibility. this flexibility, as well as bolt tension, are important to maintain wheel retention.