Original title: Bolt fastening SolutionsAt present, almost all bolts used in industry need to be controlled, which is the so-called torque control torque refers to the use of predetermined torque or predetermined torque and Angle, to carry out industrial fastening, in order to ensure enough clamping

In this section, a bolt axial force detection system based on ultrasonic surface waves is established. The transmitted signal energy of the surface waves can be used to detect the bolt axial force, and the attenuation of the bolt axial force can be monitored online by using the surface wave energy d

Material requirements for boltsPerformance levelMaterials and Heat treatmentChemical compositionTempering temperatureCPSB 1)℃minmaxmaxmaxmaxMin3.6 2)Carbon steel一一0.20.050.060.003一一4.6 2)一一0.550.050.060.003一一4.8 2)5.60.130.550.050.060.003一一5.8 2)一一0.550.050.066.8 2)6.8 2)Low carbon alloy steels (suc

Bolts grade, strength distinction and tighteningStrength to distinguish4.85.66.87.68.810.912.9Minimum breaking strength40kg/mm250kg/mm260kg/mm270kg/mm2800kg/mm2100kg/mm2120kg/mm2The material45#35#40chromiumAlloy steel (hot)Chromium-molybdenum alloy steel (hot)Ni-cr-mo alloy steel (hot)Ni-cr-mo alloy

螺纹规格 Thread SpecificationM5M6M8M10M12M14M16M18M20M22M24p牙距 Tooth Spacing0.811.251.51.75222.52.52.53S对边 公称 Opposite Nominal810131719222427303236 K头厚 公称 Thick Head Nominal3.545.36.47.58.81011.512.51415