GB/T 28267.3-2024 English PDFUS$839.00 · In stock
Delivery: <= 6 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 28267.3-2024: Steel cord conveyor belts - Part 3: Special safety requirements for belts for use in underground installations Status: Valid GB/T 28267.3: Historical versions
Basic dataStandard ID: GB/T 28267.3-2024 (GB/T28267.3-2024)Description (Translated English): Steel cord conveyor belts - Part 3: Special safety requirements for belts for use in underground installations Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: G42 Classification of International Standard: 53.040.20 Word Count Estimation: 42,418 Date of Issue: 2024-09-29 Date of Implementation: 2025-04-01 Older Standard (superseded by this standard): GB/T 28267.3-2015 Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration GB/T 28267.3-2024: Steel cord conveyor belts - Part 3: Special safety requirements for belts for use in underground installations---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order. ICS 53.040.20 CCSG42 National Standard of the People's Republic of China Replaces GB/T 28267.3-2015 Steel Cord Conveyor Belt Part 3.Special safety requirements for conveyor belts used underground (ISO 15236-3.2017,MOD) Released on 2024-09-29 2025-04-01 Implementation State Administration for Market Regulation The National Standardization Administration issued Table of ContentsPreface III Introduction V 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 Symbols and units 2 5 Conveyor belt design 3 6 Design and structure 4 7 Physical and mechanical properties requirements 6 8 Sampling 9 9 Mark 10 10 Ordering Information10 11 Sign 10 Appendix A (Normative) Safety requirements for electrical conductivity and flammability of underground conveyor belts 11 Appendix B (Normative) Dual Burner Test Method 14 Appendix C (Normative) Laboratory scale fire simulation test method 19 Appendix D (Normative) Large-scale combustion test method 27 Appendix E (Informative) Useful Information to be Provided by the Buyer 30 Reference 32ForewordThis document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1.Structure and drafting rules for standardization documents" Drafting. This document is part 3 of GB/T 28267 Steel Cord Conveyor Belts. GB/T 28267 has been published in the following parts. --- Part 1.Design, dimensions and mechanical requirements for general purpose conveyor belts; --- Part 2.Preferred belt type; --- Part 3.Special safety requirements for conveyor belts used underground; --- Part 4.Vulcanized joints for belts. This document replaces GB/T 28267.3-2015 "Steel Cord Conveyor Belts - Part 3.Special Safety Requirements for Conveyor Belts for Underground Use" Compared with GB/T 28267.3-2015, in addition to structural adjustments and editorial changes, the main technical changes are as follows. a) The symbols and units have been changed (see Chapter 4, Chapter 4 of the.2015 edition); b) The design and structure have been changed (see Chapter 6, Chapter 6 of the.2015 edition); c) The physical and mechanical properties requirements have been changed (see Chapter 7, Chapter 7 of the.2015 edition); d) Added safety requirements for electrical conductivity and flammability of underground conveyor belts (see Appendix A); e) Added the double burner test method (see Appendix B); f) Added laboratory scale fire simulation test method (see Appendix C); g) Added large-scale combustion test method (see Appendix D). This document is modified to adopt ISO 15236-3.2017 "Steel cord conveyor belts - Part 3.Particular safety requirements for conveyor belts for underground use". This document has the following structural adjustments compared to ISO 15236-3.2017. --- Appendix E corresponds to Appendix A in ISO 15236-3.2017. This document has many technical differences compared to ISO 15236-3.2017. These technical differences and their reasons are indicated by a straight single line (|). --- ISO 37 (see 7.5) was replaced by the normative reference GB/T 528 to adapt to my country's technical conditions and increase operability; --- Added normative references to GB/T 3684, GB/T 3685, GB/T 7986-2013, GB/T 16412, GB/T 39817; --- ISO 2062 (see 7.7.1) has been replaced with the normative reference GB/T 3916 to adapt to my country's technical conditions and increase operability Sexuality; --- ISO 7590 (see 6.6, 6.7) has been replaced with the normative reference GB/T 5753 to adapt to my country's technical conditions and increase operability Sexuality; --- Changed the specifications and models, adding four specifications and models. ST6300, ST7000, ST7500 and ST8000 (see Table 2); --- ISO 7622-2 (see 7.1) has been replaced by the normative reference GB/T 5754.2 to adapt to my country's technical conditions and increase operability Sexuality; --- ISO 7623 (see 7.4) has been replaced by the normative reference GB/T 5755 to adapt to my country's technical conditions and increase operability Sexuality; --- ISO 703 (see 7.8) has been replaced by the normative reference GB/T 7983 to adapt to my country's technical conditions and increase operability Sex; --- Replaced ISO 4649 (see 7.5) with the normative reference GB/T 9867-2008 to adapt to my country's technical conditions and added Operability; --- ISO 8094 (see 7.6) has been replaced by the normative reference GB/T 17044 to adapt to my country's technical conditions and increase operability Sexuality; --- Changed the sampling tape length and sample quantity requirements (see Table 8); --- Deleted the normative reference document EN13827 to adapt to my country's technical conditions; --- Added normative references GB/T 33514 (see Table 1, 7.2) to adapt to my country's technical conditions; --- Deleted the normative reference document EN14973 to adapt to my country's technical conditions; --- Added normative appendix A to appendix D to adapt to my country's technical conditions. The following editorial changes were made to this document. --- Replaced ISO 15236-2 with the informative reference GB/T 28267.2 (see Chapter 1); --- In Table 1, "hm" is changed to "Δh"; --- In Figure 1, "ϕd" is changed to "d"; --- Added the formula numbers in 5.3, and the other formula numbers are postponed accordingly; --- Change "min., max." in Table 6 to "≥, ≤"; --- In Table 8, the symbol “ > ≤” is changed to “< •≤”. Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents. This document was proposed by the China Petroleum and Chemical Industry Federation. This document is under the jurisdiction of the Conveyor Belt Subcommittee of the National Technical Committee for Pulleys and Belts Standardization (SAC/TC428/SC1). This document was drafted by. Zhejiang Shuangjian Rubber Co., Ltd., Zhejiang Fenfei Rubber and Plastic Products Co., Ltd., Anhui Zhongyi Adhesive Tape Co., Ltd. Ren Company, Wuxi Bai Nian Tong Industrial Transportation Co., Ltd., Haiyang Mingshuo Machinery Equipment Co., Ltd., Anhui Zhongde Transportation Engineering Technology Co., Ltd., Shandong Chenguang Adhesive Tape Co., Ltd., Shandong Longli Adhesive Tape Co., Ltd., Shandong ContiTech Engineering Rubber Co., Ltd., Baoding Huayue Adhesive Tape Co., Ltd. Company, Rongcheng Huacheng Rubber Co., Ltd., Qingdao University of Science and Technology, Qingdao Sinochem New Materials Laboratory Testing Technology Co., Ltd. The main drafters of this document are. Shen Huimin, Wu Yuanbin, Song Changjiang, Meng Yang, Liu Wei, Jiang Jianliang, Liu Shengping, Sun Chengcai, Li Hongcheng, Cao Zengpu, By Hong Lin, Liu Li, Wu Xiangdi, and Zhang Jie. This document was first published in.2015 and this is the first revision.IntroductionAccording to ISO 15236 standard and the specific situation of domestic steel cord conveyor belt industry, steel cord conveyor belt includes structural design, belt The four parts include type, underground safety requirements and vulcanized joints. The four parts are both related and independent. GB/T 28267 "Steel Cord Conveyor Belt" consists of four parts. --- Part 1.Design, dimensions and mechanical requirements for general purpose conveyor belts. The purpose is to provide relevant stakeholders of steel cord conveyor belts Provide unified structure and performance specifications, improve the interchangeability of steel cord conveyor belts, and facilitate maintenance and replacement. --- Part 2.Optimal belt type. The purpose is to facilitate mass production of steel cord conveyor belts and to facilitate the unification of downstream conveyor equipment. Standardization. --- Part 3.Special safety requirements for conveyor belts used underground. The purpose is to standardize the steel wire rope conveyor belts used in special environments underground. The safety of the belt. --- Part 4.Vulcanized joints of belts. The purpose is to provide relevant stakeholders with standardized joint requirements to improve the service life of conveyor belts. life. Steel Cord Conveyor Belt Part 3.Special safety requirements for conveyor belts used underground1 ScopeThis document specifies the performance and structure of underground steel cord conveyor belts (hereinafter referred to as conveyor belts) with steel cords as longitudinal tensile members. The design and structure of this document are applicable to the design of the entire belt, and also to all specifications and models specified in GB/T 28267.2. Design. Conveyor belts that comply with this document are mainly used in coal mines and other flammable and explosive places with particularly high safety requirements. NOTE. Currently only conveyor belts with a neoprene cover and adhesive can meet these requirements.2 Normative referencesThe contents of the following documents constitute essential clauses of this document through normative references in this document. For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to This document. GB/T 528 Determination of tensile stress-strain properties of vulcanized rubber or thermoplastic rubber (GB/T 528-2009, ISO 37. 2005, IDT) GB/T 3684 Specification and test methods for electrical conductivity of conveyor belts GB/T 3685 Test method for combustion characteristics of conveyor belts on a laboratory scale GB/T 3916 Textiles - Determination of breaking strength and elongation of single yarn in packaged yarn (CRE method) (GB/T 3916- 2013,ISO 2062.2009,MOD) GB/T 5753 Determination of total thickness and cover thickness of steel cord conveyor belts (GB/T 5753-2013, ISO 7590. 2009, IDT) GB/T 5754.2 Longitudinal tensile test for steel cord conveyor belts Part 2.Determination of tensile strength (GB/T 5754.2- 2017,ISO 7622-2.2015,IDT) GB/T 5755 Steel cord conveyor belts - Adhesion test between rope and covering adhesive - Test in original state and after heat aging (GB/T 5755-2021, ISO 7623.2015, IDT) GB/T 7983 Conveyor belt transverse flexibility (grooving) test method (GB/T 7983-2013, ISO 703.2007, MOD) GB/T 7986-2013 Conveyor belt roller friction test GB/T 9867-2008 Determination of wear resistance of vulcanized rubber or thermoplastic rubber (rotating roller abrasion machine method) (GB/T 9867-2008, ISO 4649.2002, IDT) GB/T 16412 Test method for flammability of single propane burner for conveyor belts GB/T 17044 Steel Cord Conveyor Belt Cover and Core Bond Strength Test (GB/T 17044-2020, ISO 8094. 2013, IDT) GB/T 33514 Determination of lateral and vertical displacement of steel cord conveyor belts GB/T 39817 Medium-scale flammability test method for conveyor belt propane burners3 Terms and definitionsThe following terms and definitions apply to this document. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 28267.3-2024_English be delivered?Answer: Upon your order, we will start to translate GB/T 28267.3-2024_English as soon as possible, and keep you informed of the progress. 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Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.Question 5: Should I purchase the latest version GB/T 28267.3-2024?Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 28267.3-2024 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically. |
