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BS 7540-3-2005 电缆.额定电压不超过450/750V的电缆使用指南.不包括在HD21和HD22中的国家标准电缆

上一篇: BS EN 61058-2-4-2005 设备开关.独立安装开关的特殊要求
下一篇: BS EN 60439-4-2004 低压开关设备和控制设备组件.施工现场用组件的特殊要求(ACS)

标准名称：	金属材料轴向等幅低循环疲劳试验方法
英文名称：	The test method for axial loading constant-amplitude low-cycle fatigue of metallic materials
中标分类：	冶金 >> 金属理化性能试验方法 >> 金属力学性能试验方法
ICS分类：	冶金 >> 金属材料试验 >> 金属材料力学试验
替代情况：	替代GB 6399-1986;被GB/T 15248-2008代替
发布部门：	国家技术监督局
发布日期：	1994-10-07
实施日期：	1995-06-01
首发日期：	1994-10-07
作废日期：	2008-10-01
主管部门：	中国航空工业第一集团公司
归口单位：	中国航空工业第一集团公司
起草单位：	航空工业总公司所
出版社：	中国标准出版社
出版日期：	1995-06-01
页数：	18页

本标准规定了金属材料轴向等幅低循环疲劳试验的术语定义、试样制备、设备、试验步骤、结果处理及试验报告。本标准适用于金属材料等截面和漏斗形试样，在承受轴向等幅拉-压应力或应变连续变化的低循环疲劳试验，不包括全尺寸部件、结构件的试验。本标准适用于与时间有关的非弹性应变和与时间无关的非弹性应变相比小得可以忽略不计的温度和应变速率下试验，这里所指的非弹性应变为所有的非弹性应变。本标准允许在温度、压力、温度、介质等环境因素下进行试验，但这些因素在整个试验过程中应保持恒定。本标准可作为材料研制、机械设计、工艺和质量控制、产品性能测定和失效分析时低循环疲劳试验的指南。

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Product Code:SAE J400
Title:Test for Chip Resistance of Surface Coatings
Issuing Committee:Textile And Flexible Plastics Committee
Scope: This SAE Recommended Practice covers a laboratory procedure for testing and evaluating the resistance of surface coating to chipping by gravel impact. The test is designed to reproduce the effect of gravel or other media striking exposed paint or coated surfaces of an automobile and has been correlated with actual field results. The specific intent of the test is to evaluate organic surface coatings or systems on flat test panels; however, It may be possible to extend this type of testing to finished parts or other types of materials such as anodized aluminum or plated plastics if the results are interpreted with respect to the limitations and intent implied by the original testing procedures and rating system.This document may involve hazardous materials, operations, and equipment. This document does not purport to address all of the safety problems associated with its use. It is the responsibility of whoever uses this document to consult and establish safety and health practices and determine the applicability of regulatory limitations prior to use.All dimensions are nominal unless otherwise noted.
Rationale: This SAE Recommended Practice covers a laboratory procedure for testing and evaluating the resistance of surface coating to chipping by gravel impact. The test is designed to reproduce the effect of gravel or other media striking exposed paint or coated surfaces of an automobile and has been correlated with actual field results. The specific intent of the test is to evaluate organic surface coatings or systems on flat test panels; however, It may be possible to extend this type of testing to finished parts or other types of materials such as anodized aluminum or plated plastics if the results are interpreted with respect to the limitations and intent implied by the original testing procedures and rating system.This document may involve hazardous materials, operations, and equipment. This document does not purport to address all of the safety problems associated with its use. It is the responsibility of whoever uses this document to consult and establish safety and health practices and determine the applicability of regulatory limitations prior to use.All dimensions are nominal unless otherwise noted.

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