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GB 26722-2024 English PDF
GB 26722-2024. Steel wire ropes for cableways National Standards of People's Republic of China ICS 77.140.65CCS H 49 Cableway wire rope 2024-06-25 Release 2024-09-25 Implementation State Administration for Market Regulation The National Standardization Administration issued Replace GB/T 26722-2022 Table of Contents Preface·... 1 Scope·... 2 Normative referenced documents·... 3 Terms and Definitions·... 4 Classification·... 5 Order contents·... 6 Wire rope material·... 7 Technical requirements·... 8 Inspection and test methods·... 9 Acceptance·... 10 Packaging, Marking and Quality Certification·... Appendix A (Normative) Mechanical Properties of Steel Wire Ropes·... Appendix B (Informative) Selection and Storage of Steel Wire Rope·... Appendix C (Informative) Calculation of Nominal Metal Cross-sectional Area of Wire Rope and Approximate Diameter of Outer Steel Wire·... Appendix D (Normative) Calculation of reference weight and minimum breaking force of steel wire rope, calculation of total breaking force of sealed steel wire rope...···40 References·... Preface This 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 is required. This document replaces GB/T 26722-2022 "Steel Wire Ropes for Ropeways". Compared with GB/T 26722-2022, except for structural adjustments and editing In addition to the changes in performance, the main technical changes are as follows. --Added 4 typical wire rope structures. 6×49SWS, 6×55SWS, 6×K49SWS and 6×K55SWS (see Table 1); --Changed the diameter ranges of 2 structural steel wire ropes, 6×36WS and 6×K36WS (see Table 1, Table 1 of the 2022 edition); --Deleted the requirements related to elastic modulus (see 7.7 and 8.1.5 of the 2022 edition); --Changed the wire rope diameter measurement method (see 8.1.1.3, 8.1.1.3 of the 2022 edition); --The test methods for elongation and elastic modulus of wire ropes have been deleted (see Appendix D of the 2022 edition). 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 is proposed and coordinated by the Ministry of Industry and Information Technology of the People's Republic of China. The previous versions of this document and the documents it replaces are as follows. --First published in.2011 as GB 26722-2011; --The first revision in 2022 is GB/T 26722-2022; --This is the second revision. Cableway wire rope 1 Scope This document specifies the classification, ordering content, wire rope materials, technical requirements, inspection and test methods, acceptance, packaging, etc. of ropeway wire ropes. Packaging, marking and quality certification. This document applies to round strand wire ropes, compacted strand wire ropes, special wire ropes for use in towing ropeways, ground cable cars, passenger and freight aerial ropeways, etc. Stranded wire rope and sealed wire rope. 2 Normative references The contents of the following documents constitute the 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 228.1 Tensile test of metallic materials Part 1.Room temperature test method GB/T 238 Metallic wire repeated bending test method GB/T 239.1 Metallic wire Part 1.One-way torsion test method GB/T 1839 Test methods for quality of zinc coating on steel products GB/T 2104 General provisions for packaging, marking and quality certification of steel wire ropes GB/T 8358 Method for determination of breaking force of steel wire rope GB/T 8706 Terminology, marking and classification of wire ropes GB/T 15030 Sisal steel wire rope core GB/T 21965 Steel Wire Rope Acceptance and Defect Terminology GB/T 43357 Test methods for general properties of steel wire ropes NB/SH/T 0387-2023 Lubricants for wire ropes YB/T 081 Rounding off of numerical values in metallurgical technical standards and determination of test values YB/T 4452 Steel Wire Rope Fiber Core YB/T 4643 Special-shaped steel wire for rope making YB/T 5343-2015 Round steel wire for rope making 3 Terms and definitions The terms and definitions defined in GB/T 8706 and the following apply to this document. 3.1 Composite steel core composite steel core; CSC A type of steel-based composite core, a rope core made by twisting steel wire ropes with a fiber core or a polymer core. 4 Categories 4.1 Steel wire ropes for ropeways (hereinafter referred to as steel wire ropes) are classified into round strand steel wire ropes, compacted strand steel wire ropes, and ...... GB/T 26722-2022 Steel wire ropes for ropeway ICS 77.140.65 CCSH49 National Standards of People's Republic of China Replacing GB/T 26722-2011 Wire rope for ropeway Published on 2022-03-09 2022-10-01 Implementation State Administration for Market Regulation Released by the National Standardization Administration directory Preface I 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 Category 1 5 Order contents 3 6 Wire rope material 4 7 Technical requirements5 8 Inspection and test methods 18 9 Acceptance 20 10 Selection and maintenance 21 11 Packaging, marking and quality certification 21 Appendix A (normative) Mechanical Properties of Wire Rope 22 Appendix B (informative) Nominal metal cross-sectional area of wire rope 41 Appendix C (informative) Approximate formula for calculating the diameter of outer steel wire of unsealed steel wire rope 43 Appendix D (normative) Test methods for elongation and elastic modulus of wire ropes 44 Appendix E (Informative) Wire Rope Selection and Maintenance 45 foreword This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules of Standardization Documents" drafted. This document replaces GB/T 26722-2011 "Wire Rope for Ropeway". Compared with GB/T 26722-2011, except for editorial changes, The main technical changes are as follows. --- Added 4 typical structures of 6×V20FC, 6×V33FC, 6×V42FC, 6×V48FC steel wire ropes with special-shaped strands (see Appendix A in Table A.7 and Table A.8); --- Deleted the typical structure of five-layer fully sealed steel wire rope (see Table 10 of the.2011 edition); ---Modified 6×7, 6×19S, 6×25F, 6×26WS, 6×29F, 6×31WS, 6×36WS, 6×41WS, 6×K7, 6× K19S, 6×K25F, 6×K26WS and 6×K31WS 13 steel wire rope structure diameter ranges (see Table 1, Table 1 of the.2011 edition); --- Modified the diameter range of the split-strand steel wire of the round strand and special-shaped strand wire rope, and the diameter range of the steel wire was modified to 0.50≤δ≤4.60mm (see Table 6, Table 10, Table 14, Table 8 and Table 12 of the.2011 edition); --- Added and revised some steel wire bending and torsion indicators, and the steel wire diameter range was revised to 0.50≤δ≤4.60mm (see Table 6, Table 10, Table 14, Table 8 and Table 12 of the.2011 edition); --- Delete the two wire rope grades of unsealed wire rope 1570 and 1670 (see Table 20 to Table 25 in the.2011 edition); --- Added two wire rope grades 2060 and 2160 (see Appendix A, Table A.1 to Table A.8); --- Change the "galvanized" in the surface state of the steel wire to "coating" (see Chapters 6 to 8, Chapters 6 to 7 of the.2011 edition); --- Added solid polymer rope core (SPC) (see 5.2); ---Increased the weight coefficient of special-shaped strand wire rope, changed the weight coefficient and minimum breakage of compacted strand wire rope and sealed wire rope Tensile coefficient (see Table 5, Table 3 of the.2011 edition); --- Deleted the table of allowable number of low-value steel wires for the split-strand steel wire test of compacted wire rope (see Table 19 of the.2011 edition), and added the low value Calculation method of allowable number of steel wires [see 7.2.7.2b)]; --- Increased the requirements for the use and maintenance of wire ropes for ropeways (see Chapter 9); --- Added the schematic diagram of 6×V20FC, 6×V33FC, 6×V42FC, 6×V48FC structural steel wire ropes (see Appendix A). Please note that some content of this document may be patented. The issuing agency of this document assumes no responsibility for identifying patents. This document is proposed by China Iron and Steel Association. This document is under the jurisdiction of the National Steel Standardization Technical Committee (SAC/TC183). This document is drafted by. Angang Steel Rope Co., Ltd., Guizhou Steel Rope Co., Ltd., Jiangsu Saifutian Steel Rope Co., Ltd., Kunshan East Coast Ocean Engineering Co., Ltd., Jiangyin Xingcheng Special Steel Co., Ltd., Hubei Fuxing New Material Technology Co., Ltd., Metallurgical Industry Information Information Standards Research Institute, Shanxi Engineering Vocational College. The main drafters of this document. Zhao Xianhai, Li Guangyu, Leng Mingjian, Zheng Limao, Yang Yuemin, Wang Yong, Zhang Dongmei, Bai Yun, Li Longbiao, Zhang Dan, Liu Xiuhai, Lin Zhuying, Wang Guohui, Chen Haiyan, Xu Zhixiong, Gao Zhengkai, Wang Jing, Hao Jiujiu, Ren Cuiying, Wang Lingjun, Hou Xiangdong. This document was first published as GB/T 26722-2011 in.2011, and this is the first revision. Wire rope for ropeway 1 Scope This document specifies the classification, order content, wire rope material, technical requirements, inspection and test methods, acceptance and selection of wire ropes for ropeways and maintenance, packaging, marking and quality certification. This document is applicable to round strand wire ropes, special-shaped strand wire ropes, compacted strands, etc. Wire rope and sealed wire rope. 2 Normative references The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, dated citations documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to this document. GB/T 228.1 Tensile Test of Metallic Materials Part 1.Test Method at Room Temperature GB/T 238 Metallic Material Wire Repeated Bending Test Method GB/T 239.1 Metallic Material Wire Part 1.Unidirectional Torsion Test Method GB/T 1839 Test method for quality of zinc coating on steel products GB/T 2104 General requirements for wire rope packaging, marking and quality certificate GB/T 8358 Determination method of actual breaking force of steel wire rope GB/T 8706 Wire Rope Terminology, Marking and Classification GB/T 15030 Sisal Wire Rope Core GB/T 21965 Wire Rope Acceptance and Defect Terminology NB/SH/T 0387 Grease for wire rope YB/T 081 Metallurgical Technology Standard Numerical Rounding and Determination of Test Values YB/T 4643 Special-shaped steel wire for rope making YB/T 5343 Round steel wire for rope making 3 Terms and Definitions There are no terms and definitions that need to be defined in this document. 4 categories 4.1 Wire ropes are classified according to the principles specified in GB/T 8706, see Table 1 for details. If the buyer does not clearly propose the specific wire rope structure, it can be Suppliers shall determine by themselves within the same group in Table 1. ...... GB 26722-2011 Steel wire ropes for ropeway ICS 77.140.65 H49 National Standards of People's Republic of China Cableway wire rope Issued on. 2011-06-16 2012-02-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released Table of Contents Preface Ⅰ 1 Scope 1 2 Normative references 1 3 Category 1 4 order contents 3 5 rope material 3 6 Technical requirements 4 7 Inspection and Test 15 8 Acceptance 17 9 packaging, marking and quality certificate 18 Appendix A (informative) shares rope outer wires empirical formula to calculate the approximate diameter of 26 Annex B (informative) Rope fill factor 27 Foreword This standard 5,6.1,6.2.1,6.2.2,6.2.3,6.2.4,6.2.5,6.2.6,6.2.8,6.3,6.5,7.1.1,7.1.4,7.1.6, 7.1.7,7.2,7.3,7.4,7.5,8,9 are mandatory, others are recommended. This standard was drafted in accordance with GB/T 1.1-2009 given rules. This standard Annex A, Annex B is informative appendix. The standard proposed by China Iron and Steel Association. This standard is under the jurisdiction of the National Steel Standardization Technical Committee. This standard was drafted. Anshan Iron and Steel Co., Ltd., Guizhou Wire Rope Co., Ltd., Metallurgical Industry Information Standards Institute. The main drafters. Zhang Deying, He Dehuai, Xing Yong Sheng, Xia Nan, Wang Lingjun, Wang Guohui, YANG Hong-ying, Daishi Feng, Ren Cuiying. Cableway wire rope 1 Scope This standard specifies the ground cableway and cable car wire rope classification, ordering the content, materials, technical requirements, inspection and testing, acceptance, package Equipment, marking and quality certification. This standard applies to passenger and freight ropeway, floor lifts, round strand wire rope used for towing cableway, compaction and sealing steel strand wire rope Rope. Note. If not otherwise specified "tramway" or "passenger ropeway", was both universal. If it does not specify the "skyline", "carrying cable", "pulling cable", "flat Heng cable, "" tension cords "," towing cable "," rescue rope "compared with seven kinds of common. 2 Normative references The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document. RT Test methods (GB/T 228.1-2010, ISO 6892-1.. Part 1 GB/T 228.1 metallic materials tensile 2009, MOD) GB/T 238 metal material wire repeated bending test method (GB/T 238-2002, idtISO 7801. 1984) GB/T 239 metal wire torsion test method (GB/T 239-1999, ISO 7800. 1984, eqvISO 9649.1990) GB/T 1839 quality steel products galvanizing layer test method GB/T 2104 General provisions rope packaging, marking and quality certificate GB/T 8170 repair value expressed about the rules and limit values and judgment GB/T 8358 rope breaking tensile test method (GB/T 8358-2006, ISO 3108. 1974, NEQ) GB/T 8706 wire rope terminology, labeling and classification (GB/T 8706-2006, ISO 17893.2004, IDT) GB/T 15030 sisal rope core GB/T 21965 wire rope inspection and defect term (GB/T 21965-2008, ISO 2532. 1974, NEQ) YB/T 5343 Steel wire rope SH/T 0387 Steel Wire Rope Grease SH/T 0388 fiber core wire rope grease Category 3 3.1 round strand wire rope, compacted wire rope shares Number of shares in its cross-section, the number of shares and shares of the outer wire classification; seal shaped wire rope press Shape and number of layers are classified as shown in Table 1. 3.2 compacted strand wire rope round stock and press the right twist into interactive twist, left twist interaction, with the right to the same four kinds of twist and twist to the left, as shown in Figure 1 to 4 Shown. Figures 1 and 2 ply twisted rope and to the contrary, Figures 3 and 4 rope twist and shares the same; sealing rope twist by twist to ensure the outermost wire Fixed, divided into left and right twist twist two types of requirements for no party, press the right twist supply. 3.3 rope standard designation according to the provisions GB/T 8706; the structure of shares by the center to the outer marker. Rope series of marks by the following composition. twenty two a) Size 6 × 36WS b) wire rope structure -IWRC c) core structure d) steel cord level e) surface state of steel sZ f) the type and direction of twist Table 1 rope Categories Group classification principles Typical Structure diameter range Rope strands mm ROUND STRANDED Line access Steel Touch Rope 6 × 7 6 stocks, the outer filaments per share of 4 to 8, center Wire, twisting 1 layer steel wire, steel wire twisting pitch 6 × 7 (1-6) 8 ~ 38 6 × 19 6 stocks, the outer filaments per share of 7 to 12, the center Wire, twisting 2 to 3 layers of steel wire, steel wire twisting pitch 6 × 19S 6 × 25F 6 × 26WS (1-9-9) (1-6-6F-12) (1-5-55-10) 12 to 38 12 to 44 20 to 40 6 × 36 6 stocks, the outer filaments per share of 12 to 18, in Heart wire, twisting 2 to 3 layers of steel wire, steel wire, etc. Lay length 6 × 29F 6 × 31WS 6 × 36WS 6 × 41WS (1-7-7F-14) (1-6-66-12) (1-7-77-14) (1-8-88-16) 14 to 44 22 to 46 18 to 52 32 to 60 Compaction Steel shares Rope 6 × K7 6 stocks, the outer filaments per share of 4 to 8, center Wire, twisting 1 layer steel wire, steel wire twisting pitch 6 × K7 (1-6) 10 ~ 40 6 × K19 6 stocks, the outer filaments per share of 7 to 12, the center Wire, twisting 2 to 3 layers of steel wire, steel wire twisting pitch 6 × K19S 6 × K25F 6 × K26WS (1-9-9) (1-6-6F-12) (1-5-55-10) 12 to 40 16 to 46 14 to 40 6 × K36 6 stocks, the outer filaments per share of 12 to 18, in Heart twisted wire, three-layer steel wire, steel wire twisting pitch 6 × K29F 6 × K31WS 6 × K36WS 6 × K41WS (1-7-7F-14) (1-6-66-12) (1-7-77-14) (1-8-88-16) 18 to 46 16 to 46 18 to 60 22 to 68 seal Wire Full dense monolayer Seal rope One Z-shaped steel wire, steel wire layers 2 or Layer 2 the above WSC n1Z 22 ~ 36 Full double density Seal rope Layer Z-shaped steel, wire or 4 layers of floors 4 the above WSC n1Z n2Z 28 ~ 46 Three whole secret Seal rope Three Z-shaped steel, wire or 4 layers of floors 4 the above WSC n1Z n2Z n3Z 46 ~ 58 Four whole secret Seal rope Four Z-shaped steel wire, steel wire or 5 layers 5 layers the above WSC n1Z n2Z n3Z n4Z 58 ~ 70 Five full secret Seal rope Five Z-shaped steel, wire or six layers of floors 6 the above WSC n1Z n2Z n3Z n4Z n5Z 60 ~ 70 Right interactive twist sZ figure 1 Left interactive twist zS figure 2 With the right to lay zZ image 3 Left twist in the same direction sS Figure 4 4 ordering content Contract in accordance with this standard orders should include the following main elements. a) number of this standard; b) the product name; c) structure (standard designation); d) nominal diameter; e) twist; f) lay length range; g) surface state; h) the nominal tensile strength; i) the quantity (length); j) use; k) other requirements. 5 Material rope 5.1 wire rope 5.1.1 rope with round wire shall comply with the provisions of YB/T 5343 an important purpose. 5.1.2 include wire rope with round strand core yarn and filling yarn. 5.2 cord In addition to Group 7 wire rope, the other groups of steel cord to a core of the fiber core. Fiber core shall comply with GB/T 15030, or made of synthetic fibers and other fibers can meet the requirements. Except as otherwise required to be square Grease impregnated seek, fiber core applications with anti-corrosion, rust-proof performance, fiber core should have anti-extrusion, anti-corrosion, anti-rust oil storage function. 5.3 Grease Ma core fat shall comply with SH/T 0388 or other relevant requirements. 6 Technical Requirements 6.1 shares 6.1.1 Unit should twisting even close. 6.1.2 shares center wire should have sufficient supporting role, so that the outer envelope can be uniformly twisted wires twisted to allow stocks between adjacent wires Uniform gap. Shares with the same diameter steel wire, which is the center of the wire should be appropriately increased. 6.2 Rope 6.2.1 twisting 6.2.1.1 round strand wire rope, compacted shares rope lay length should be between 6.7 to 7.5 times the diameter of the rope; rope and line contact seal Round-strand lay length should not exceed 10 times the diameter, the contact point round-strand lay length should not exceed 11 times its diameter. 6.2.1.2 twisting wire rope should be uniform, tight and not loose. In an expanded and no load, can not be wavy. Within the ropes shall There are staggered, bent and broken wires and other defects, but allowed wire flattening phenomenon due to deformation caused by the presence of the pressing tools and clamps. 6.2.1.3 round strand wire rope, wire rope shares compaction and sealing rope round strand core at the time of manufacture, with a diameter of the wire should be referred to the same tension as well Strength steel allows the use of different diameters the same or adjacent nominal tensile strength; the Z-shaped steel wire rope seal layer wire should be the same with anti Tensile strength, different layers of steel wire nominal tensile strength may be different. But should ensure the minimum wire rope breaking force in line with the provisions of Table 20 to Table 30. 6.2.1.4 rope cord should have sufficient supporting role, so that the outer package even twisting twisted strands. Between each adjacent shares are advised to have a more Uniform gap. 6.2.1.5 All galvanized steel wire rope wire should be galvanized. 6.2.1.6 The rope wire connector should be minimized. When connecting wire, welded connection applications. It shares the same twisting, the round steel stocks Each connector wire rope in shares within a distance of not less than 10m; compacted strand wire rop...... |
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