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ASTM A931-2008 金属丝绳和绞线拉伸试验的标准试验方法

ASTM A931-2008 金属丝绳和绞线拉伸试验的标准试验方法

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【英文标准名称】: Standard Test Method for Tension Testing of Wire Ropes and Strand
【原文标准名称】: 金属丝绳和绞线拉伸试验的标准试验方法
【标准号】: ASTM A931-2008
【标准状态】: 现行
【国别】: 美国
【发布日期】: 2008
【实施或试行日期】:
【发布单位】: 美国材料与试验协会(US-ASTM)
【起草单位】: A01.03
【标准类型】: (Test Method)
【标准水平】: ()
【中文主题词】:
【英文主题词】: socket; thermo-set resin; wire rope; Socket; Steel wire rope; Tensile properties/testing--steel; Thermosetting resins; Wire rope
【摘要】: Wire rope tests are generally to be performed on new rope. The use of wire rope in any application can reduce individual wire strengths due to abrasion and nicking that will result in the wire rope strength being reduced. Damage to the outer wires will also lower the maximum strength achieved during tension testing. The modulus of elasticity of wire rope is not considered to be a standard requirement at this time. The determination of this material property requires specialized equipment and techniques. Rope to be tested should be thoroughly examined to verify that no external wire damage is present. If present, it should be noted. When possible, a new undamaged sample should be obtained for testing. End attachments and their installation can directly affect breaking force achieved during testing. Any attachment that can be used to directly achieve the required rope breaking force can be used. Standard testing with a poured socket, using zinc, white metal or thermoset resin, has been considered the most efficient. Proficiency in attachment of any fitting can have a direct effect on the final test results. 1.1 This test method covers the tension testing of wire ropes and strand at room temperature, specifically to determine the measured breaking force, yield strength, elongation, and modulus of elasticity. Methods described in this standard are not intended for other purposes. 1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. 1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Specific precautionary statements are given in Note 1 and Note 2.
【中国标准分类号】: H49
【国际标准分类号】: 77_140_65
【页数】: 4P.;A4
【正文语种】: 英语

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