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TB/T 1632.1-2014: Welding of rails - Part 1: General 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 1632.1: Historical versions
Similar standardsTB/T 1632.1-2014: Welding of rails - Part 1: General---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/TBT1632.1-2014TB RAILWAY INDUSTRY STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 45.120 S 17 Replacing TB/T 1632.1-2005 Welding of rails - Part 1.General specification Issued on. OCTOBER 30, 2014 Implemented on. MAY 01, 2015 Issued by. Ministry of Railway of PRC Table of ContentsForeword... 3 1 Scope... 5 2 Normative references... 5 3 Terms and definitions... 5 4 Requirements for rails for welding... 8 5 Requirements for flaw detection of welded joints... 8 6 Requirements for straightness and surface quality of welded joints... 9 7 Inspection methods for straightness and surface quality of welded joints... 11 8 Flaw detection method... 12 9 Drop weight test method... 12 10 Static bending test method... 12 11 Fatigue test method... 13 12 Tensile test method... 14 13 Impact test method... 15 Appendix A (Normative) Technical specification for ultrasonic flaw detection of rail welded joints... 17 Appendix B (Normative) Rail drop weight testing machine... 24 Appendix C (Normative) Rail static bending test machine... 25 Appendix D (Normative) Fatigue testing machine... 27ForewordTB/T 1632 "Welding of rails" is divided into four parts. - Part 1.General specification; - Part 2.Flash butt welding; - Part 3.Thermit welding; - Part 4.Gas pressure welding. This Part is Part 1 of TB/T 1632. This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This Part replaces TB/T 1632.1-2005 "Welding of rails - Part 1.General specification". Compared with TB/T 1632.1-2005, the main technical changes are as follows. - MODIFY the terms and definitions (see Chapter 3; Chapter 3 of the 2005 edition); - MODIFY the requirements for ultrasonic flaw detection (see Chapter 5; Chapter 5 of the 2005 edition); - MODIFY the requirements for straightness of welded joints and inspection methods for straightness (see 6.1 and 7.1; 6.1 and 7.1 of the 2005 edition); - MODIFY the requirements and test methods for surface roughness of welded joints (see 6.2.1 and 7.2.2; 6.2.1 and 7.2.2 of the 2005 edition); - MODIFY the sampling position of heat-treated rail tensile test (see 12.1; 11.1 of the 2005 edition); - MODIFY the sampling position of the impact test (see 13.1; 12.1 of the 2005 edition); - MODIFY the Appendix A "Technical specification for ultrasonic flaw detection of rail welded joints" (see Appendix A; Appendix A of the 2005 edition). This part was proposed by AND shall be under the jurisdiction of the Institute of Standards and Metrology of the Ministry of Railways. Drafting organizations of this Part. Institute of Metals and Chemistry of China Academy of Railway Sciences, Institute of Standards and Metrology of Ministry of Railways. The main drafters of this section. Gao Wenhui, Gao Donghai, Zhou Qingyue, Zhu Mei. Participating drafters of this section. Li Lianxiu, Li Li, Wang Shuqing, Tu Zhankuan. This standard replaces the standard previously issued as follows. - TB/T 1632-1991; - TB/T 1632.2-1997; - TB/T 1632.1-2005. Welding of rails - Part 1.General specification1 ScopeThis Part of TB/T 1632 specifies the terms and definitions, requirements for welding rails, flaw detection requirements for welded joints, straightness and surface quality requirements for welded joints of railway rail welding; inspection methods for straightness and surface quality for welded joints, flaw detection inspection methods, drop weight, static bending, fatigue, tensile, impact test methods. This Part is applicable to new steel rails of 50 kg/m ~ 75 kg/m, which is welded by methods such as flash welding, thermite welding, gas pressure welding.2 Normative referencesThe following documents are indispensable for the application of this document. For dated references, only the dated version applies to this document. For undated reference documents, the latest version (including all amendments) applies to this document. GB/T 228.1-2010 Metallic materials - Tensile testing - Part 1.Method of test at room temperature GB/T 229-2007 Metallic materials - Charpy pendulum impact test method GB/T 2650-2008 Impact test methods on welded joints GB/T 2651-2008 Tensile test method on welded joints JB/T 10061-1999 Commonly used specification for A-mode ultrasonic flaw detector using pulse echo technique JB/T 10062-1999 Testing methods for performance of probes used in ultrasonic flaw detection TB/T 2344-2012 Technical specifications for the procurement of 43 kg/m ~ 75 kg/m as rolled rails TB/T 3276-2011 Rails for high speed railway3 Terms and definitionsThe following terms and definitions apply to this document. 3.1 Stationary flash-butt welding Use the flash welder to weld the rails, at the welding station of the base or workshop rail welding line, wherein the welding power supply is supplied by the power grid through the distribution transformer. 3.2 Mobile flash-butt welding Use the flash welder to weld the rails on the work site, wherein the welder and its supporting equipment is powered by an independent vehicle-mounted generator set. 3.3 Gas pressure welding A welding method, in which a steel rail is heated with a gas flame and a firm joint is obtained under pressure.4 Requirements for rails for weldingThe hot-rolled rails or on-line heat-treated rails used for welding shall comply with the requirements of TB/T 2344-2012.5 Requirements for flaw detection of welded joints5.1 Qualification requirements for flaw detection personnel Flaw detectors shall have technical qualifications of level II or above for non- destructive testing in the railway industry, AND have passed technical training on flaw detection of rail welded joints. 5.2 Ultrasonic flaw detection requirements 5.2.7 During flaw detection, the flaw detection sensitivity can be increased by 4 dB ~ 6 dB for scanning. 5.2.8 When using the 0° probe to detect the thermite welded joint, if the bottom wave is 16 dB or more lower than the normal welded joint OR if the welded joint has the following defects, the welded joint shall be rejected. 5.2.9 See Appendix A for other requirements of ultrasonic flaw detection. 5.3 Requirements for surface flaw detection requirements It should use surface flaw detection methods, such as magnetic particle, penetration, eddy current, to detect cracks on the surface of joints.6 Requirements for straightness and surface quality of welded joints6.1 Straightness requirements See Table 1 for the straightness requirements of the 1 m length of the rail head working face of the rail welding joint; no low joints shall appear. 6.2 Surface quality requirements 6.2.1 After the shape finishing of the welded joint is finished, within 1 m of the weld seam as the center, the surface roughness of the top surface of the rail shall meet the following requirements. no more than 0.2 mm in any 200 mm section; when the design speed v > 160 km/h, it should not be greater than 0.1 mm in any 100 mm section. (There is no surface roughness requirement for the pits in the unground area of the base metal surface). 6.2.2 There shall be no cracks, obvious indentations, scratches, bruises, electrode burns, grinding burns, or other damages on the welded joints and the surface of the nearby rails. The grinding depth of base metal should be less than 0.5 mm.7 Inspection methods for straightness and surface quality of welded joints7.1 Straightness inspection method 7.1.1 The measurement positions for the straightness of welded joints are respectively. the longitudinal centerline of the top surface of the rail, the longitudinal line at 16 mm from the rail surface of the rail on the working edge of the side of the rail head; the measurement shall be at the rail surface at 500 mm positions on both sides of the centerline of the weld as the reference point; the measurement length is 1 m; the weld is centered. 7.2 Surface quality inspection method 7.2.1 Visual inspection for surface defects. 7.2.2 The inspection of surface roughness is divided into the following two methods.8 Flaw detection methodThe method of flaw detection shall be carried out, in accordance with the provisions in Appendix A.9 Drop weight test method9.1 Test piece 9.1.1 The straightness and surface quality of the test piece shall comply with the provisions in Chapter 6. 9.2 Test temperature The temperature of the test piece is 10 °C ~ 50 °C. When the test environment temperature is lower than 10 °C, the temperature of the test piece shall be close to 50 °C. 9.3 Drop weight testing machine The requirements for the drop weight testing machine shall comply with the provisions in Appendix B. TB/T 1632.1-2014 TB RAILWAY INDUSTRY STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 45.120 S 17 Replacing TB/T 1632.1-2005 Welding of rails - Part 1.General specification Issued on. OCTOBER 30, 2014 Implemented on. MAY 01, 2015 Issued by. Ministry of Railway of PRCTable of ContentsForeword... 3 1 Scope... 5 2 Normative references... 5 3 Terms and definitions... 5 4 Requirements for rails for welding... 8 5 Requirements for flaw detection of welded joints... 8 6 Requirements for straightness and surface quality of welded joints... 9 7 Inspection methods for straightness and surface quality of welded joints... 11 8 Flaw detection method... 12 9 Drop weight test method... 12 10 Static bending test method... 12 11 Fatigue test method... 13 12 Tensile test method... 14 13 Impact test method... 15 Appendix A (Normative) Technical specification for ultrasonic flaw detection of rail welded joints... 17 Appendix B (Normative) Rail drop weight testing machine... 24 Appendix C (Normative) Rail static bending test machine... 25 Appendix D (Normative) Fatigue testing machine... 27ForewordTB/T 1632 "Welding of rails" is divided into four parts. - Part 1.General specification; - Part 2.Flash butt welding; - Part 3.Thermit welding; - Part 4.Gas pressure welding. This Part is Part 1 of TB/T 1632. This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This Part replaces TB/T 1632.1-2005 "Welding of rails - Part 1.General specification". Compared with TB/T 1632.1-2005, the main technical changes are as follows. - MODIFY the terms and definitions (see Chapter 3; Chapter 3 of the 2005 edition); - MODIFY the requirements for ultrasonic flaw detection (see Chapter 5; Chapter 5 of the 2005 edition); - MODIFY the requirements for straightness of welded joints and inspection methods for straightness (see 6.1 and 7.1; 6.1 and 7.1 of the 2005 edition); - MODIFY the requirements and test methods for surface roughness of welded joints (see 6.2.1 and 7.2.2; 6.2.1 and 7.2.2 of the 2005 edition); - MODIFY the sampling position of heat-treated rail tensile test (see 12.1; 11.1 of the 2005 edition); - MODIFY the sampling position of the impact test (see 13.1; 12.1 of the 2005 edition); - MODIFY the Appendix A "Technical specification for ultrasonic flaw detection of rail welded joints" (see Appendix A; Appendix A of the 2005 edition). This part was proposed by AND shall be under the jurisdiction of the Institute of Standards and Metrology of the Ministry of Railways. Drafting organizations of this Part. Institute of Metals and Chemistry of China Academy of Railway Sciences, Institute of Standards and Metrology of Ministry of Railways. The main drafters of this section. Gao Wenhui, Gao Donghai, Zhou Qingyue, Zhu Mei. Participating drafters of this section. Li Lianxiu, Li Li, Wang Shuqing, Tu Zhankuan. This standard replaces the standard previously issued as follows. - TB/T 1632-1991; - TB/T 1632.2-1997; - TB/T 1632.1-2005. Welding of rails - Part 1.General specification1 ScopeThis Part of TB/T 1632 specifies the terms and definitions, requirements for welding rails, flaw detection requirements for welded joints, straightness and surface quality requirements for welded joints of railway rail welding; inspection methods for straightness and surface quality for welded joints, flaw detection inspection methods, drop weight, static bending, fatigue, tensile, impact test methods. This Part is applicable to new steel rails of 50 kg/m ~ 75 kg/m, which is welded by methods such as flash welding, thermite welding, gas pressure welding.2 Normative referencesThe following documents are indispensable for the application of this document. For dated references, only the dated version applies to this document. For undated reference documents, the latest version (including all amendments) applies to this document. GB/T 228.1-2010 Metallic materials - Tensile testing - Part 1.Method of test at room temperature GB/T 229-2007 Metallic materials - Charpy pendulum impact test method GB/T 2650-2008 Impact test methods on welded joints GB/T 2651-2008 Tensile test method on welded joints JB/T 10061-1999 Commonly used specification for A-mode ultrasonic flaw detector using pulse echo technique JB/T 10062-1999 Testing methods for performance of probes used in ultrasonic flaw detection TB/T 2344-2012 Technical specifications for the procurement of 43 kg/m ~ 75 kg/m as rolled rails TB/T 3276-2011 Rails for high speed railway3 Terms and definitionsThe following terms and definitions apply to this document. 3.1 Stationary flash-butt welding Use the flash welder to weld the rails, at the welding station of the base or workshop rail welding line, wherein the welding power supply is supplied by the power grid through the distribution transformer. 3.2 Mobile flash-butt welding Use the flash welder to weld the rails on the work site, wherein the welder and its supporting equipment is powered by an independent vehicle-mounted generator set. 3.3 Gas pressure welding A welding method, in which a steel rail is heated with a gas flame and a firm joint is obtained under pressure.4 Requirements for rails for weldingThe hot-rolled rails or on-line heat-treated rails used for welding shall comply with the requirements of TB/T 2344-2012.5 Requirements for flaw detection of welded joints5.1 Qualification requirements for flaw detection personnel Flaw detectors shall have technical qualifications of level II or above for non- destructive testing in the railway industry, AND have passed technical training on flaw detection of rail welded joints. 5.2 Ultrasonic flaw detection requirements 5.2.7 During flaw detection, the flaw detection sensitivity can be increased by 4 dB ~ 6 dB for scanning. 5.2.8 When using the 0° probe to detect the thermite welded joint, if the bottom wave is 16 dB or more lower than the normal welded joint OR if the welded joint has the following defects, the welded joint shall be rejected. 5.2.9 See Appendix A for other requirements of ultrasonic flaw detection. 5.3 Requirements for surface flaw detection requirements It should use surface flaw detection methods, such as magnetic particle, penetration, eddy current, to detect cracks on the surface of joints.6 Requirements for straightness and surface quality of welded joints6.1 Straightness requirements See Table 1 for the straightness requirements of the 1 m length of the rail head working face of the rail welding joint; no low joints shall appear. 6.2 Surface quality requirements 6.2.1 After the shape finishing of the welded joint is finished, within 1 m of the weld seam as the center, the surface roughness of the top surface of the rail shall meet the following requirements. no more than 0.2 mm in any 200 mm section; when the design speed v > 160 km/h, it should not be greater than 0.1 mm in any 100 mm section. (There is no surface roughness requirement for the pits in the unground area of the base metal surface). 6.2.2 There shall be no cracks, obvious indentations, scratches, bruises, electrode burns, grinding burns, or other damages on the welded joints and the surface of the nearby rails. The grinding depth of base metal should be less than 0.5 mm.7 Inspection methods for straightness and surface quality of welded joints7.1 Straightness inspection method 7.1.1 The measurement positions for the straightness of welded joints are respectively. the longitudinal centerline of the top surface of the rail, the longitudinal line at 16 mm from the rail surface of the rail on the working edge of the side of the rail head; the measurement shall be at the rail surface at 500 mm positions on both sides of the centerline of the weld as the reference point; the measurement length is 1 m; the weld is centered. 7.2 Surface quality inspection method 7.2.1 Visual inspection for surface defects. 7.2.2 The inspection of surface roughness is divided into the following two methods.8 Flaw detection methodThe method of flaw detection shall be carried out, in accordance with the provisions in Appendix A.9 Drop weight test method9.1 Test piece 9.1.1 The straightness and surface quality of the test piece shall comply with the provisions in Chapter 6. 9.2 Test temperature The temperature of the test piece is 10 °C ~ 50 °C. When the test environment temperature is lower than 10 °C, the temperature of the test piece shall be close to 50 °C. 9.3 Drop weight testing machine The requirements for the drop weight testing machine shall comply with the provisions in Appendix B. ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of English version of TB/T 1632.1-2014 be delivered?Answer: The full copy PDF of English version of TB/T 1632.1-2014 can be downloaded in 9 seconds, and it will also be emailed to you in 9 seconds (double mechanisms to ensure the delivery reliably), with PDF-invoice.Question 2: Can I share the purchased PDF of TB/T 1632.1-2014_English with my colleagues?Answer: Yes. 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