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Delivery: <= 6 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 1972.2-2023: Disc springs - Part 2: Technical specifications Status: Valid
Basic dataStandard ID: GB/T 1972.2-2023 (GB/T1972.2-2023)Description (Translated English): Disc springs - Part 2: Technical specifications Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: J26 Classification of International Standard: 21.160 Word Count Estimation: 40,440 Date of Issue: 2023-05-23 Date of Implementation: 2023-12-01 Older Standard (superseded by this standard): GB/T 1972-2005 Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration GB/T 1972.2-2023: Disc springs - Part 2: Technical specifications---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 21:160 CCSJ26 National Standards of People's Republic of China Replace GB/T 1972-2005 Disc springs part 2 : specifications (ISO 19690-2:2018, MOD) Released on 2023-05-23 2023-12-01 implementation State Administration for Market Regulation Released by the National Standardization Management Committee table of contentsPreface III Introduction VI 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 Symbols, parameter names and units1 5 Structural type, grouping and dimension series 3 5:1 Structure type 3 5:2 Disc spring grouping 4 5:3 Dimension series 5 6 Technical Requirements 5 6:1 Materials 5 6:2 Manufacturing process 5 6:3 Limit deviation 6 6:4 Surface quality 8 6:5 Heat treatment 9 6:6 Standing (forced pressure) treatment 9 6:7 Surface treatment 9 6:8 Shot peening 9 6:9 Allowable stress 9 6:10 Creep and relaxation 11 6:11 Other 12 7 Test method 12 7:1 General 12 7:2 Detection device 12 7:3 Standing (forced pressure) treatment 13 7:4 Geometry 13 7:5 Concentricity 15 7:6 Test load 15 7:7 Hardness 16 7:8 Decarbonization16 7:9 Surface treatment 16 7:10 Shot peening 16 7:11 Fatigue 16 7:12 Creep and relaxation 16 7:13 Surface quality 16 8 Inspection rules 16 8:1 Defect classification 16 8:2 Inspection level 17 8:3 Sample Size Code 17 8:4 Sampling plan 17 8:5 Received quality limits 19 9 Labeling, packaging, transportation, storage 19 9:1 Sign 19 9:2 Packaging 19 9:3 Transport 19 9:4 Certificate of Conformity 20 9:5 Storage 20 Appendix A (informative) Comparison between this document and ISO 19690-2:2018 structure number 21 Appendix B (Normative) Standard Disc Spring Dimensions 24 Appendix C (Normative) Disc Spring Guide 30forewordThis 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 2 of GB/T 1972 "Disc Springs": GB/T 1972 has released the following parts: --- Part 1: Calculation; --- Part 2: Technical conditions: This document replaces GB/T 1972-2005 "Disc Spring": Compared with GB/T 1972-2005, except for structural adjustment and editorial changes In addition, the main technical changes are as follows: ---Changed the scope (see Chapter 1, Chapter 1 of the:2005 edition), the outer diameter and thickness range of disc springs are specified; --- Changed symbols, parameter names and units (see Chapter 4, Chapter 3 of the:2005 edition); ---Changed the structural type, grouping and dimension series (see Chapter 5, Chapter 4 of the:2005 edition); --- Changed the material (see 6:1, 5:1 of the:2005 edition); --- Changed the manufacturing process (see Table 4, Table 2 of the:2005 edition); --- Changed the thickness limit deviation (see Table 5, Table 5 of the:2005 edition); --- Added concentricity tolerance (see 6:3:3); --- Changed the detection load limit deviation (see 6:3:5, 5:3:1 of the:2005 edition); --- Deleted the surface roughness (see 5:4 of the:2005 edition); --- Changed the surface quality (see 6:4, 5:5 of the:2005 edition); --- Change the heat treatment (see 6:5, 5:6 of the:2005 edition); --- Changed the standing (forced pressure) treatment (see 6:6, 5:7 of the:2005 edition); --- Changed the surface treatment (see 6:7, 5:8 of the:2005 edition); --- Changed shot peening (see 6:8, 5:9 of the:2005 edition); ---Changed the allowable stress under static load (see 6:9:1, C:5:2 of the:2005 edition); --- Changed the allowable stress during dynamic load (see 6:9:2, C:5:3 of the:2005 edition); ---Changed creep and relaxation (see 6:10, C:6 of the:2005 edition); --- Increased detection device (see 7:2); --- Added standing (forced pressure) treatment (see 7:3); --- Changed the thickness (see 7:4:1, 6:1:1 of the:2005 edition); --- Changed the outer diameter and inner diameter (see 7:4:2, 6:1:2 of the:2005 edition); --- Changed the free height (see 7:4:3, 6:1:3 of the:2005 edition); --- Increased coaxiality (see 7:5); --- Changed the detection load (see 7:6, 6:2:1 of the:2005 edition); --- Changed the hardness (see 7:7, 6:2:3 of the:2005 edition); --- Added shot peening (see 7:10); --- Changed fatigue (see 7:11, 6:6 of the:2005 edition); --- Added creep and relaxation (see 7:12); --- Changed the defect classification (see 8:1, 7:1 of the:2005 edition); --- Changed the sampling plan (see 8:4, 7:4 of the:2005 edition); --- Changed the receiving quality limit (see 8:5, 7:5 of the:2005 edition); --- Changed Appendix B (see Appendix B, Appendix B of the:2005 edition, C:7 of the:2005 edition): This document is modified to adopt ISO 19690-2:2018 "Disc Springs Part 2: Technical Conditions": Compared with ISO 19690-2:2018, this document has more structural adjustments, and the comparison list of structural number changes between the two documents See Appendix A: The technical differences between this document and ISO 19690-2:2018 and their reasons are as follows: --- Changed the scope (see Chapter 1) to adapt to the technical conditions of our country; ---Delete the technical requirements of A-level disc springs in ISO 19690-2:2018 to adapt to the technical conditions of our country; --- Deleted ISO 683-1 to adapt to my country's technical conditions; --- Deleted ISO 683-2 to adapt to my country's technical conditions; --- Deleted ISO 16249 to adapt to my country's technical conditions; --- Delete EN1654 to adapt to the technical conditions of our country; --- Delete EN10083-1 to adapt to the technical conditions of our country; --- Delete EN10083-2 to adapt to the technical conditions of our country; --- Delete EN10083-3 to adapt to the technical conditions of our country; --- Delete EN10089 to adapt to the technical conditions of our country; --- Deleted EN10132-4 to adapt to the technical conditions of our country; --- Delete EN10151 to adapt to the technical conditions of our country; --- JISG3311 was deleted to adapt to the technical conditions of our country; --- JISG4801 was deleted to adapt to the technical conditions of our country; --- JISG4802 was deleted to adapt to the technical conditions of our country; --- Deleted ASTMA240 to adapt to the technical conditions of our country; --- Deleted ASTMA332 to adapt to my country's technical conditions; --- Deleted ASTMA506 to adapt to my country's technical conditions; --- Deleted ASTMA568 to adapt to my country's technical conditions; --- Deleted ASTMA666 to adapt to my country's technical conditions; ---Deleted ASTMA682 to adapt to the technical conditions of our country; --- Deleted ASTMA684 to adapt to the technical conditions of our country; --- Deleted ASTMA689 to adapt to the technical conditions of our country; --- Deleted ASTMA693 to adapt to my country's technical conditions; --- Deleted ASTMB103 to adapt to my country's technical conditions; --- Deleted ASTMB194 to adapt to my country's technical conditions; --- Deleted ASTMB196 to adapt to my country's technical conditions; --- Deleted BS970-2 to adapt to the technical conditions of our country; --- Replaced ISO 26909 (see Chapter 3) with the normatively quoted GB/T 1805 to adapt to the technical conditions of our country; --- Changed the technical requirements (see Chapter 6) to adapt to domestic market applications; --- Changed the material, added GB/T 1222, GB/T 3279 and YB/T 5058 (see 6:1) to adapt to my country's technical conditions and Market demand; --- Changed the limit deviation of outer diameter and inner diameter (see 6:3:2) into Class I and Class II to adapt to domestic market applications; --- Replaced ISO 286-2:2010 (see 6:3:3) with the normatively quoted GB/T 1800:2 to adapt to the technical conditions of our country; --- Changed the detection load limit deviation (see 6:3:5) into grade I and grade II to adapt to domestic market applications; ---Changed the depth of decarburization layer (6:5:2), which is more reasonable; --- Replaced ISO 26910-1:2009 (see 6:8, 7:10) with the normatively quoted GB/T 31214:1 to adapt to my country's technology condition; --- Replaced ISO 19690-1:2017 with the normative reference GB/T 1972:1-2023 (see 6:9:1, Table B:1), two documents The degree of consistency between them is modified to adapt to the technical conditions of our country; ---Changed the allowable stress under static load (see 6:9:1), more rigorous; --- Added standing (forced pressure) treatment (see 7:3) to adapt to the technical conditions of our country; --- Added measurement with a depth gauge (see 7:4:3:2) to adapt to the technical conditions of our country; --- Increase the coaxiality (see 7:5) to adapt to the technical conditions of our country; --- Increase the hardness (see 7:7) to adapt to the technical conditions of our country; --- Replaced ISO 6507:2005 (see 7:7) with the normatively quoted GB/T 4340:1 to adapt to the technical conditions of our country; --- Replaced ISO 6508:2016 (see 7:7) with the normatively quoted GB/T 230:1 to adapt to the technical conditions of our country; --- Added decarbonization (see 7:8) to adapt to my country's technical conditions; --- Replaced ISO 3387:2017 (see 7:8) with the normatively quoted GB/T 224 to adapt to the technical conditions of our country; --- Increased surface treatment (see 7:9) to adapt to the technical conditions of our country; --- Shot peening (see 7:10) has been added to adapt to the technical conditions of our country; --- Added fatigue (see 7:11) to adapt to the technical conditions of our country; --- Added creep and relaxation (see 7:12) to adapt to the technical conditions of our country; ---Increase the inspection rules (see Chapter 8), which are easy to use and adapt to the technical conditions of our country; --- Replaced ISO 2859-1:1999 (see 8:2) with the normatively quoted GB/T 2828:1 to adapt to the technical conditions of our country; --- Increased signs, packaging, transportation, storage (see Chapter 9), easy to use, in order to adapt to the technical conditions of our country; --- Changed the size, model and design value of the disc spring (see B:1 of Appendix B), and only kept the parts consistent with our country's materials to adapt to our country's National technical conditions; --- Increased marking (see B:2) to adapt to my country's technical conditions: The following editorial changes have been made to this document: --- Changed Figure 5: Please note that some contents of this document may refer to patents: The issuing agency of this document assumes no responsibility for identifying patents: This document is proposed and managed by the National Spring Standardization Technical Committee (SAC/TC235): This document is drafted by: Yangzhou Hewei Disc Spring Manufacturing Co:, Ltd:, Zhongji Productivity Promotion Center Co:, Ltd:, Shanghai Nuclear Engineering Disc Spring Manufacturing Co:, Ltd: Spring Manufacturing Co:, Ltd:, Jiangsu Sanzhong Elastic Technology Co:, Ltd:, Hubei Xinbaomao Spring Co:, Ltd:, Langfang Shuangfei Disc Spring Co:, Ltd: Division, Yangzhou Spring Co:, Ltd:, Yangzhou Zhongdie Spring Manufacturing Co:, Ltd:, Yangzhou Hengli Disc Spring Manufacturing Co:, Ltd:, Yangzhou Lanyang Spring Manufacturing Co:, Ltd: Manufacturing Co:, Ltd:, Changzhou Ziqiang Hardware Machinery Co:, Ltd:, Xi'an Hangguang Elastic Mold Device Co:, Ltd: The main drafters of this document: Gao Jie, Cheng Peng, Guo Bin, Shen Zijian, Liu Tongsheng, Wang Dehai, Gao Qizhou, Ji Bing, Zhou Xingyou, Guo Wengang, Sun Qian, Zhang Yuehai, Lu Peigen, Huang Liang, Liu Jingbo: This document was first published in 1980, revised for the first time in:1992, revised for the second time in:2005, and this is the third revision:IntroductionDisc spring is a kind of universal elastic element, which is widely used in machinery, chemical industry, aviation, construction and other industries: GB/T 1972 "Disc Springs" is divided into two parts: --- Part 1: Calculation: On the basis of standardizing the structure type, grouping and dimension series of disc springs, a set of applicable specifications is given: The calculation method of the disc spring around the disc spring provides a theoretical basis for the verification and design of the disc spring: --- Part 2: Technical conditions: The purpose is to standardize the technical conditions, test methods and acceptance rules of disc springs: Disc springs part 2 : specifications1 ScopeThis document specifies the technical conditions for disc springs with rectangular cross-sections (hereinafter referred to as "disc springs"): Type of construction including disc springs, Dimension series, technical requirements, test methods, inspection rules: This document applies to disc springs with an outer diameter not greater than 250 mm and a thickness of 0:2 mm to 14 mm: This document does not apply to grooved disc springs, diaphragm disc springs and disc springs of other constructions:2 Normative referencesThe contents of the following documents constitute the essential provisions of this document through normative references in the text: Among them, dated references For documents, only the version corresponding to the date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to this document: Decarburization Depth Determination Method for GB/T 224 Steel (GB/T 224-2019, ISO 3387:2017, MOD) GB/T 230:1 Rockwell hardness test for metallic materials - Part 1: Test method (GB/T 230:1-2018, ISO 6508: 2016, MOD) GB/T 1222 Spring steel GB/T 1800:2 Product Geometric Specifications (GPS) Linear Dimensional Tolerance ISO Code System Part 2: Standard Tolerance Band Code Table of limit deviation of size and hole and shaft (GB/T 1800:2-2020, ISO 286-2:2010, MOD) GB/T 1805 Spring Terminology (GB/T 1805-2021, ISO 26909:2009, MOD) GB/T 1972:1-2023 Disc springs Part 1: Calculation (ISO 19690-1:2017, MOD) GB/T 2828:1 Counting sampling inspection procedure Part 1: Batch-by-batch inspection sampling plan retrieved by acceptance quality limit (AQL) (GB/T 2828:1-2012, ISO 2859-1:1999, IDT) GB/T 3279 spring steel hot rolled steel plate GB/T 4340:1 Vickers hardness test for metallic materials - Part 1: Test method (GB/T 4340:1-2009, ISO 6507: 2005, MOD) GB/T 31214:1 Spring Shot Peening Part 1: General Rules (GB/T 31214:1-2014, ISO 26910-1:2009, IDT) YB/T 5058 spring steel, tool steel cold rolled strip3 Terms and DefinitionsThe terms and definitions defined in GB/T 1805 apply to this document: 4 Symbols, parameter names and units The symbols, parameter names and units used in this document are shown in Table 1: ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 1972.2-2023_English be delivered?Answer: Upon your order, we will start to translate GB/T 1972.2-2023_English as soon as possible, and keep you informed of the progress. 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