TB/T 1619-2010 PDF EnglishUS$145.00 · In stock · Download in 9 seconds
TB/T 1619-2010: Magnetic particle testing of axle for rolling stock Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure Status: Valid TB/T 1619: Historical versions
Similar standardsTB/T 1619-2010: Magnetic particle testing of axle for rolling stock---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/TBT1619-2010TB RAILWAY INDUSTRY STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 45.060 S 39 Replacing TB/T 1619-1998 Magnetic particle testing of axle for rolling stock Issued on: DECEMBER 02, 2010 Implemented on: JUNE 01, 2011 Issued by. Ministry of Railways of People’s Republic of China Table of ContentsForeword ... 3 1 Scope ... 5 2 Normative references ... 5 3 Terms and definitions ... 5 4 Technical requirements ... 6 5 Inspection rules ... 9 6 Defect evaluation ... 10 7 Testing records ... 11 Appendix A (Normative) Magnetic particle and magnetic suspension ... 12 Appendix B (Normative) Magnetic suspension contamination measurement 14ForewordThis Standard was drafted in accordance with the rules in GB/T 1.1-2009. This Standard replaces TB/T 1619-1998 "Magnetic particle testing of axle for rolling stock". As compared with TB/T 1619-1998, the main changes are as follows. - MODIFY the requirements for testing personnel (see 4.1 of this version; Clause 4 of 1998 version); - ADD testing equipment’s functional requirements (see 4.2.3 of this version); - ADD the magnetic suspension contamination measurement (see 4.3 of this version); - ADD testing environment requirements (see 4.4 of this version); - ADD the illumination requirements for the observation area during self- fluorescent magnetic particle testing (see 4.4.3 of this version); - DEFINE that the rolling stock magnetic particle testing can only use fluorescent magnetic particle testing (see 4.5, 5.1 of this version); - MODIFY the testing sensitivity requirements (see 4.6, Clause 5.2 of 1998 version of this version); - ADD the daily and quarterly performance inspection requirements for the testing equipment (see 4.6 of this version); - ADD the inspection rules (see 5 of this version); - MODIFY the demagnetization requirements (see 6.4 of this version; Clause 7.4 of 1998 version); - MODIFY and ADD magnetization specification equation (see 4.7 of this version; Clause 6.4 of 1998 version); - INCLUDE the magnetic particle and magnetic suspension’s technical requirements into Appendix A (see Appendix A of this version); - ADD the magnetic suspension contamination measurement method, which is listed in Appendix B (see Appendix B of this version). This Standard was proposed by and shall be under the jurisdiction of CSR Qishuyan Institute Co., Ltd. Magnetic particle testing of axle for rolling stock1 ScopeThis Standard specifies the technical requirements, testing rules, defect evaluation, testing records, etc., of the fluorescent magnetic particle testing for newly made rolling stock axles. This Standard applies to the use of fluorescent magnetic particle wet continuous method to conduct magnetic particle testing for newly made rolling stock axles; the magnetic particle testing process for the rolling stock axle repair and CRH axle can also refer to this Standard.2 Normative referencesThe following documents are essential to the application of this document. For the dated documents, only the versions with the dates indicated are applicable to this document; for the undated documents, only the latest version (including all the amendments) are applicable to this Standard. TB/T 2047.1 Technical specification for materials used for non-destructive testing in railway - Part 1. Materials for magnetic particle testing JB/T 8290 Magnetic particle flaw detectors3 Terms and definitionsThe following terms and definitions apply to this document. 3.1 Cracks It refers to, in the process, the defects caused due to destruction of metal continuity. During magnetic particle testing, it is generally characterized by serrated magnetic marks, irregular pointed shape at both ends, clear contour, AND thick & clear magnetic particle aggregation. 3.2 Hair-lines - Axle machining parts of reassembly wheel set. 5.4 As for the testing parts, after grinding and machining, it shall be subject to re-testing.6 Defect evaluation6.1 Unless otherwise specified, it shall follow the provisions of Clause 6.2 ~ 6.4. 6.2 It is not allowed for the transverse cracks, portrait cracks, or transverse hair- lines existed on the axle surface. 6.3 As for the portrait hair-lines on the axle surface, the allowable limit is as below. a) Dust board seat AND wheel seat (excluding the inertia fatigue cracking zone which is measured 30mm from the wheel seat rear shoulder to the axle end). the single hair-line length shall not exceed 10 mm; the 2mm ~ 10mm length hair-line within the 3870mm2 rectangular area shall not exceed 10, its long side of rectangle area shall not exceed 152mm, AND the single hair-line shall not extend to the axle shoulder. b) The inertia fatigue cracking zone within 30mm from wheel seat to rear shoulder. the single hair-line length shall not exceed 5 mm; the 2mm ~ 5mm length hair-line within the 3870mm2 rectangular area shall not exceed 10, AND its long side of rectangle area shall not exceed 152mm. c) Journal. the single portrait hair-line length shall not exceed 25mm, AND the 2mm ~ 25mm length hair-line along the entire journal surface shall be not more than 5. d) Axle body. the single portrait hair-line length shall not exceed 30mm, AND the 5mm ~ 30mm length hair-line within the 2500m2 rectangular area shall be not more than 15. e) As for the aforementioned parts, the hair-line within same section shall be not more than 3. f) At each arc of the axle, it is not allowed to exist hair-line. g) Along the same longitudinal straight line, as for the non-continuous hair- line which exceeds 5mm of length, its total length shall not exceed 50mm. h) On each part of axle (except for the arc portion and aforementioned relevant provisions), if the portrait hair-line length is less than 5mm, notAppendix A(Normative) Magnetic particle and magnetic suspension A.1 Magnetic particle The fluorescent magnetic performance shall comply with the provisions of TB/T 2047.1. A.2 Magnetic suspension A.2.1 Water magnetic suspension A.2.1.1 USE the mixed solution of water and certain proportion dispersants, anti-foaming liquid, and rust inhibitor OR dedicated carrier liquid as the carrier liquid; the dispersants, anti-foaming liquid, and rust inhibitor, etc., from different manufacturers shall be added based on the proportions in the product specification. When preparing magnetic suspension, it shall firstly use a small amount of dispersant to mix with magnetic particle; STIR it into paste form; AND then add the remaining dispersants, anti-forming liquid, rust inhibitor, and sufficient amount of water. A.2.1.2 The water carrier liquid performance shall comply with the requirements of TB/T 2047.1. A.2.2 Oil-based magnetic suspension A.2.2.1 USE the mixed solution of transformer oil and kerosene at a certain percentage OR dedicated fluorescent carrier liquid as the carrier liquid. During preparation, firstly TAKE a small amount of carrier liquid to mix the fluorescent magnetic particle, to make the fluorescent magnetic particle totally wet; STIR it into a uniform paste; then ADD the remaining oil-based carrier liquid; STIR it evenly. A.2.2.2 The performance of oil-based carrier liquid shall comply with the requirements of TB/T 2047.1. A.2.3 Magnetic suspension requirements Whether it is water magnetic suspension OR oil-based magnetic suspension, its chemical properties shall be stable, easy to clean, no corrosion against workAppendix B(Normative) Magnetic suspension contamination measurement B.1 Sampling methods As for sampling methods and static settlement time of the magnetic suspension test, see Appendix A.2.6. B.2 Determination methods of contamination B.2.1 Once one of the cases specified in B.2.2 ~ B.2.4 occurs, it indicates that the magnetic suspension has been contaminated. B.2.2 In accordance with Appendix A.2.6, if the settled magnetic particle is loose coalescence, rather than a solid layer, it shall be re-sampled; if the second sample still shows loose coalescence, REPLACE the magnetic suspension. B.2.3 In black light and visible light, check whether the scale portion of the long- necked sedimentation tube has different colors, layered appearance, strips OR streaks, if there is layered appearance, strips OR streaks, it indicates that the magnetic suspension is contaminated; if the contamination volume exceeds 30% of the settled magnetic particle volume, it shall replace the magnetic suspension. B.2.4 During fluorescent magnetic particle testing, if the magnetic suspension is milky white or light blue, it indicates that the magnetic suspension is contaminated by grease, AND it shall replace the magnetic suspension. ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. 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