螺栓不松没事，一松就断是什么原因High Strength Bolt Automatic Testing System
作者 Ming
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发布时间 20/08/10
螺栓松动会引起设备振动、部件损坏，甚至人员伤亡。螺栓松动断裂和疲劳断裂大体相同，螺栓断裂大多数情况都是紧固件松动造成的，螺纹紧固件松动后，产生巨大的动能，这种巨大的动能直接作用于紧固件及设备，致使螺栓紧固件损坏。受轴向力作用的紧固件，螺纹被破坏，螺栓被拉断。受径向力作用的紧固件，螺栓被剪断，螺栓孔成橢圆形。
螺栓防松机理是限制螺纹副之间的相对运动，或增大相对运动的难度。选用螺纹防松方式是解决螺栓不松没事、一松就断的根本。螺栓螺母常用防松方法有摩擦防松、机械防松和永久防松。机械防松和摩擦防松为可拆卸防松，永久防松称为不可拆卸防松。
机械防松和摩擦防松方法有弹簧垫片防松、对顶螺母（双螺母）防松、自锁螺母防松、槽型螺母和开口销防松、止动垫片、串联钢丝防松。常用永久防松有点焊防松、铆接防松、冲边防松、防松液粘合防松、旋合螺纹间涂液体胶粘剂等。
2000N.m500kN高强螺栓轴力扭矩测试仪用于大六角头高强螺栓连接副轴向力试验、扭矩试验、扭矩系数复验；扭剪型高强度螺栓预拉力复验、副施工扭矩检验。自动计算平均轴力、平均扭矩、平均扭矩系数、标准偏差和变异系数。具备螺栓连接副抗滑移初拧和终拧辅助装置。螺栓扭矩2000N.m/0.1N.m，螺栓轴力500kN/0.1kN，大六角头螺栓M12～M30，扭剪型高强螺栓M16～M30，测试螺栓长度40mm～280mm，HRJ-Test移动式高强螺栓检测仪。
5000kN螺栓抗拉强度试验机；1000kN螺栓疲劳强度试验机；30000N.m螺栓力矩系数试验机；
GB 50205-2017钢结构工程施工质量验收规范；hrjtest；GB/T32076.2-2015预载荷高强度栓接结构连接副；NB/T31082-2016风电机组塔架用高强度螺栓连接副；GB/T3632钢结构用扭剪型高强度螺栓连接副；GB/T16823.3紧固件扭矩-夹紧力试验；jnshiyanji；3kN.m～50kN.m高强螺栓扭矩试验机；40kN.m预载荷螺栓连接副试验机；5000N.m/10000N.m汽车半轴扭转试验机；1000kN无振动伺服万能试验机；ASTM F3125−2015；ASTM A307-2017；ASTM A183；ASTM A563-2015；ASTM.A320M-2015；ASTM A354-2011；ASTM A325-2014；ASTM F959；ASTM F2437；CNS 12209；JIS B1009-2014；JIS B1166；EN 14399；EN 16047；DIN 103；DIN 2510-5；hrjtest；DIN 558；DIN 601；DIN 931；DIN 933；DIN 960；DIN 961；ISO 898-1；NF E25-036；ISO/TR 16224；GB/T32076.1-2015；GB/T32076.3-2015；GB/T32076.4-2015；jnshiyanji；GB/T32076.5-2015；GB/T32076.6-2015；GB/T32076.7-2015；GB/T32076.8-2017；GB/T32076.9-2017；GB/T32076.10-2018；GB/T6170-2015；GB/T3106-2016；GB/Z32564-2016；GB/T192；GB/T1228；GB/T1229；GB/T1230；GB/T1231；GB/T5782-2016；GB/T3098.1-2010；
High Strength Bolt Automatic Testing System；HRJ Tester；Preloading High-Strength Structural Bolting Assemblies Tester；Bolting Assemblies Torque Coefficient Tester；Torque Clamp Force Testing；Wind Turbine Bolting Assemblies Tester；Bolting Axial Force Test；Bolting Torque Tester；Bolting Torque Coefficient Test；Coefficient of friction between bearing surfaces under nut or bolt head；Coefficient of friction between threads；Coefficient of total friction；High-strength structural bolting assemblies for preloading；Suitability for preloading；System HR-Hexagon bolt with large width across flatsand nut assemblies；System HV-Hexagon bolt with large width across flats and nut assemblies；Torshear type bolt with cup head，and nut assemblies；Torshear type bolt with hexagon head with large width across flats and nut assemblies；High strength bolts with large hexagon head for steel structures；High strength plain washers for steel structures；Width Across Flats For Hexagon Products；High-Strength Bolting Assemblies For Tower on Wind Turbine；HRJ Tester；Specifications of high strength bolts with large hexagon head large hexagon nuts；Sets of torshear type high strength bolt hexagon nut and plain washer for steel structures；Code for acceptance of construction quality of steel structures；Torque clamp force testing；Sets of high strength torque control bolt；Fasteners Bolts screws and studs Nominal lengths and thread lengths；HRJ Tester；High-Strength Structural Bolting Assemblies For Preloading；Bolted Connections with Reduced Shank；standard specification for carbon steel track bolts and nuts；Alloy-Steel and Stainless Steel Bolting for Low-Temperature Service；Standard Specification for High Strength Structural Bolts；120ksi(830MPa) and 150ksi(1040MPa) Minimum Tensile Strength；
济南恒瑞金试验机有限公司；免基础无振动万能材料试验机；山东省力值硬度计量委员
（试验机服务中心）（试验机配件供应中心）（特殊夹具定制中心） |