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Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 26732-2025: Process for retreading of tyres Status: Valid GB/T 26732: Historical versions
Basic dataStandard ID: GB/T 26732-2025 (GB/T26732-2025)Description (Translated English): Process for retreading of tyres Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: G41 Classification of International Standard: 83.160.01 Word Count Estimation: 14,188 Date of Issue: 2025-01-24 Date of Implementation: 2025-08-01 Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration GB/T 26732-2025: Process for retreading of tyres---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 83.160.01 CCSG41 National Standard of the People's Republic of China Replace GB/T 26732-2011 Tire retreading process Released on 2025-01-24 2025-08-01 Implementation State Administration for Market Regulation The National Standardization Administration issued ForewordThis 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 replaces GB/T 26732-2011 "Tire Retreading Process". Compared with GB/T 26732-2011, except for structural adjustment and editing, In addition to the changes in performance, the main technical changes are as follows. --- Changed the scope of application (see Chapter 1, Chapter 1 of the.2011 edition); --- Added some terms (see 3.1, 3.2 and 3.3); --- Changed the description of the process stages (see 4.1, 4.1 of the.2011 edition); --- Added relevant provisions for tire conveying system (see 4.1); --- Changed the requirements for main equipment for tire selection (see 4.2.1.2, 4.2.1.2 of the.2011 edition); --- Changed the requirements for crown and shoulder grinding [see a) in 4.2.2.1.1 and a) in 4.2.2.1.1 of the.2011 edition]; --- Deleted the relevant provisions of hydraulic grinders (see 4.2.2.1.2 of the.2011 edition); --- Changed the requirements for damage repair and grinding [see b) in 4.2.2.2.1 and b) in 4.2.2.2.1 of the.2011 edition]; --- Change the liner to a patch (see 4.2.3.3, 4.2.4.3 of the.2011 edition); --- Changed the requirements for spraying adhesive (see 4.2.4.1, 4.2.3.1 of the.2011 edition); --- Added the main molding equipment, annular pre-cured tread molding machine (see 4.2.5.2); --- Deleted the expressions "according to the construction card" and "according to the construction card" in the molding method (see 4.2.5.3 of the.2011 edition); --- Change the molding methods from 3 to 4, and add relevant requirements (see 4.2.5.3, 4.2.5.3 of the.2011 edition); --- Added the provision that the outer envelope can be added with a snap ring during vulcanization [see 4.2.6.3a)]; --- Added crank-connecting rod mechanism vulcanizing press (see 4.3.3.2). 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 National Technical Committee for Tire and Rim Standardization (SAC/TC19). This document was drafted by. China Chemical Equipment Technology Group Co., Ltd., Sailun Group Co., Ltd., Shandong Linglong Tire Co., Ltd. Company, Wuhan Huazhong Recycling Technology Co., Ltd., Beijing Rubber Industry Research and Design Institute Co., Ltd., Qingdao Taikaiying Special Tire Co., Ltd. Company, Gaotang Xinglu-Bendaco Tire Strengthening Co., Ltd., Jiangsu Yisheng Investment Group Co., Ltd., Guizhou Tire Co., Ltd., Prinx Chengshan (Shandong) Tire Co., Ltd., Fengshen Tire Co., Ltd., Fujian Zhengkun Rubber Technology Co., Ltd., Bridgestone (China) Investment LIMITED. The main drafters of this document are. Tan Zhibin, Wang Zhiwen, Peng Lei, Wang Feng, Huang Lvjie, Li Shuhuan, Li Miaomiao, Zhang Yanlong, Tian Jianguo, Wang Caixia, Dai Fangwen, Wu Xiangxin, Tian Bin, Gao Juying, Zhu Cheng, Mou Shouyong, Xu Lihong, Zheng Rui. This document was first published in.2011 and this is the first revision. Tire retreading process1 ScopeThis document specifies the process requirements for retreading pneumatic tires. Note. It does not include the plasticizing and mixing process of rubber for retreaded tires; it does not include the production process of pre-vulcanized tread, pre-vulcanized cushion rubber and other materials. This document is applicable to the retreading of pneumatic passenger car tires, truck tires, and engineering machinery tires, but not to the replacement of belt pneumatic tires. Tire retreading and solid tire retreading.2 Normative referencesThe 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 6326 Tire Terminology GB/T 7037 Truck retread tires GB/T 14646 Passenger car retreaded tires GB/T 21286 Pneumatic tire repair GB/T 45291 Retreaded tires for construction machinery3 Terms and definitionsThe terms and definitions defined in GB/T 6326 and the following apply to this document. 3.1 Mouldless vulcanized The retreaded tire after the green rubber tread is formed is vulcanized without a mold in the vulcanizing tank. 3.2 Tread engraving A pattern is engraved on a tire tread without a pattern using an engraving machine. Note. There are two types of tread engraving. engraving before tread vulcanization and engraving after tread vulcanization. 3.3 No-mold engraving renovation Retreaded tires use moldless vulcanization and tread engraving technology. Note. Mainly used for retreading tires of large engineering machinery.4 Tire retreading process requirements4.1 General Tire retreading processes are divided into three categories according to technical characteristics. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 26732-2025_English be delivered?Answer: Upon your order, we will start to translate GB/T 26732-2025_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of GB/T 26732-2025_English with my colleagues?Answer: Yes. 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Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 26732-2025 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. |
