Standard Briefing:Stadard ID: GB/T 3688-2025
Stadard Title: Test method for adhesion performance of V-belt cords
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Status: ValidEvolution and Historical Versions:
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 3688-2025 | English | 299 |
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Test method for adhesion performance of V-belt cords
| Valid |
GB/T 3688-2025
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| GB/T 3688-1998 | English | 139 |
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2 days [Need to translate]
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V-belt. Cord adhesion test method
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GB/T 3688-1998
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| GB/T 3688-1983 | English | RFQ |
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3 days [Need to translate]
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V-belts--Adhesion between rope and rubber--Method of test
| Obsolete |
GB/T 3688-1983
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Basic Data: | Standard ID | GB/T 3688-2025 (GB/T3688-2025) | | Description (Translated English) | Test method for adhesion performance of V-belt cords | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G47 | | Classification of International Standard | 83.140.99 | | Word Count Estimation | 14,141 | | Date of Issue | 2025-04-25 | | Date of Implementation | 2025-11-01 | | Older Standard (superseded by this standard) | GB/T 3688-1998 | | Issuing agency(ies) | State Administration for Market Regulation, National Standardization Administration | Contents, Scope, and Excerpt:GB/T 3688-2025.Test method for adhesion performance of V-belt cords
ICS 83.140.99
CCSG47
National Standard of the People's Republic of China
Replaces GB/T 3688-1998
Test method for adhesion performance of V-belt cords
Released on 2025-04-25
2025-11-01 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 3688-1998 "Test method for adhesion strength of V-belt cords". Compared with GB/T 3688-1998, except for the structural
In addition to adjustments and editorial changes, the main technical changes are as follows.
a) The scope has been changed and the stripping method has been added (see Chapter 1, Chapter 1 of the.1998 edition);
b) Added terms and definitions (see Chapter 3);
c) The test principle has been changed (see Chapter 4, Chapter 3 of the.1998 edition);
d) The size and structure of the test holder have been changed, and sample preparation tools have been added (see Chapter 5, Chapter 4 of the.1998 edition);
e) Added general test rules (see Chapter 6);
f) The test procedure was changed and fatigue test was added (see Chapter 7, Chapter 6 of the.1998 edition);
g) The test data processing has been changed (see Chapter 8, Chapter 7 of the.1998 edition);
h) Added the dynamic fatigue test method for ordinary cloth straps (see Appendix A).
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 on Rubber and Rubber Products (SAC/TC35).
This document was drafted by. Sanlishi Co., Ltd., Qingdao Tianbang New Materials Co., Ltd., Qingdao Haishengtai Materials Co., Ltd., Jinhua City
Yalun Chemical Fiber Co., Ltd., Qingdao University of Science and Technology.
The main drafters of this document are. Wu Qiongying, Yu Chong, Zhang Baogang, Xiang Jun, Qu Jinlei and Xu Shijia.
This document was first published in.1998 and this is the first revision.
Test method for adhesion performance of V-belt cords
ScopeThis document describes a test method for determining the adhesion between the cord and rubber in rubber V-belts using the extraction method and the peeling method, respectively.
This document is applicable to the determination of the adhesion between the cord and rubber in rubber V-belts and the determination of the adhesion between the cord and rubber in rubber multi-ribbed belts.
Refer to the implementation.
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 8170 Rules for rounding off values and expression and determination of limit values
GB/T 11356.1 Belt drive V-belt pulleys (reference width system) Groove test
GB/T 11357 Pulley material, surface roughness and balance
GB/T 11545 Fatigue test of V-belts for belt drive automotive industry
GB/T 12730 Narrow V-belts for general transmission
GB/T 12735 Fatigue test of V-belts for belt-driven agricultural machinery
GB/T 12833 Multi-peak curve analysis in the determination of tear strength and adhesive strength of rubber and plastics
GB/T 16491 Electronic universal testing machine
GB/T 32110 Terms and definitions for impregnated skeleton materials
HG/T 4493 Lightweight V-belts for agricultural machinery
Terms and DefinitionsThe terms and definitions defined in GB/T 32110 and the following apply to this document.
3.1
The bonding strength of the bonding interface between the cord skeleton and the rubber of a non-fatigued rubber V-belt.
3.2
The bonding strength of the bonding interface between the cord skeleton and the rubber after the rubber V-belt has undergone dynamic fatigue operation.
3.3
The ratio of dynamic bond strength to initial bond strength.
4 Test Principle
The initial bonding strength and dynamic bonding strength between the cord and rubber in the V-belt were measured by the extraction method and the peeling method respectively, and the bonding strength was calculated.
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