BS EN 14831-2005 紧固件.紧固性能.扭矩/角度简化试验法

标准号：BS EN 14831-2005
中文标准名称：紧固件.紧固性能.扭矩/角度简化试验法
英文标准名称：Fasteners - Tightening performance - Torque/Angle simplified test method
标准类型：J13
发布日期：2005/12/12 12:00:00
实施日期：2005/12/12 12:00:00
中国标准分类号：J13
国际标准分类号：21.060.10;21.060.20
引用标准：EN 20898-2;EN ISO 898-1;EN ISO 4759-3;EN ISO 7093-1;EN ISO 16047
适用范围：This document specifies a test method for fasteners with ISO metric thread from M6 to M16 and with propertyclasses 8.8 to 12.9 for bolts and screws and with property classes 8 to 12 for nuts, to check their tighteningperformance in the elastic range.It applies to steel fasteners with an ISO metric thread according to ISO 68-1.It applies to fasteners having a friction coefficient from 0,06 up to and including 0,18. For higher values offriction coefficients, the dispersion of test results increases and the test method should not be applied. Forlower values friction of coefficients, which are for very specific applications and require special lubrication, thisdocument does not apply.This comparative test method can be used to monitor stability of a production process (such as coating,lubrication, shot-blasting) or to compare various production manufacturing lots. It can also be used to detectfasteners, which are out of specification.NOTE This simplified test method has been developed to avoid systematic use of more complex procedures.In case of dispute the torque/tension test method according to EN ISO 16047 is the referee test.This document does not apply for assessment of fasteners in actual assembly conditions; it does not allow themeasurement of operating friction coefficients.