Product Code:SAE AMS2649
Title:Etch Inspection of High Strength Steel Parts
Issuing Committee:Ams B Finishes Processes And Fluids Committee
Scope:This specification establishes the requirements for etch inspection of bare high strength low alloy steel parts having tensile strength of 180 ksi (1241 MPa) and higher and of carburized parts to detect overheating caused by abusive machining or grinding in the heat treated condition, and to detect localized discontinuous carburization. This process is not applicable to surface hardened steels produced by nitriding or carbonitriding. This process may remove 0.0001 to 0.0005 inch (2.5 to 12.7 micrometers) from the surface of the part.【英文标准名称】:TestMethodforComplexDielectricConstantofNonmetallicMagneticMaterialsatMicrowaveFrequencies
【原文标准名称】:微波频率下非金属磁性材料复合介电常数测试方法
【标准号】:ANSI/ASTMA893-1997
【标准状态】:现行
【国别】:美国
【发布日期】:1997
【实施或试行日期】:
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:微波;电容率;试验;磁性材料
【英文主题词】:testing;magneticmaterials;microwaves;permittivity
【摘要】:Thistestmethodcoversthemeasurementofthecomplexdielectricconstantofisotropicferritesforextremelyhigh-frequencyapplications.Thevaluesstatedininch-poundunitsaretoberegardedasthestandard.Thisstandarddoesnotpurporttoaddressallofthesafetyproblems,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:H70
【国际标准分类号】:29_030
【页数】:
【正文语种】:英语