GB/T 34370.3-2017 Translated English of Chinese Standard. (GBT 34370.3-2017, GB/T34370.3-2017, GBT34370.3-2017): Nondestructive testing of amusement equipment - Part 3: Magnetic particle testinghttps://www.chinesestandard.net, 2018 M11 16 - 28 pages This Part of GB/T 34370 specifies the yoke method, coil method and current flow method of the magnetic particle testing method and the requirements for quality grading of amusement equipment. This Part applies to the testing of defects on the surface and near surface of ferromagnetic raw materials, parts and welded joint of amusement equipment. This Part does not apply to the testing of austenitic stainless steel and other non-ferromagnetic materials. |
Contents
Testing process procedures | 13 |
9Testing | 22 |
Magnetic particle testing quality grading | 23 |
Magnetic particle testing report | 24 |
Annex A informative Waveform of various magnetizing electric currents ammeter indication and conversion relationship | 26 |
Annex B informative Typical magnetization methods for welds | 27 |
Common terms and phrases
absorbing magnetic particle according to formula ammeter indication amusement equipment applying magnetic particle Artificial defect Average value Id axial current flow calculated according Circular defect magnetic circumferential magnetization coil is calculated Continuous method contrast aid paints conversion relationship cross-sectional area current flow method defect magnetic particle demagnetization evaluation frame factor coil method ferromagnetic fill factor coil fluorescent magnetic particle flux leakage field heat treatment Hebei JB/T length to diameter lifting power Linear defect magnetic longitudinal magnetization M1 type magnetic field method magnetic field strength magnetic ink concentration magnetic particle indication magnetic particle testing magnetic permeability magnetization specification magnetizing electric current Non-destructive testing particle testing equipment particle testing quality provisions of GB/T rectified current relevant indication residual magnetic field shown in Table testing of amusement testing personnel testing process card testing process procedures testing quality grade Testing record type standard shim Typical magnetization methods various magnetizing electric welded joints yoke method