GB/T 31256-2014Conveyor belts -- Specification for rubber-or plastics-covered conveyor belts of textile construction for underground mining (English PDF)
输送带 具有橡胶或塑料覆盖层的地下采矿用织物芯输送带规范
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Issued by
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Level / Type
National · Recommended
Issue date
December 5, 2014
Implementation date
July 1, 2015
Scope
GB/T 31256-2014 is the English-translated version of 输送带 具有橡胶或塑料覆盖层的地下采矿用织物芯输送带规范.
GB/T 31256-2014 is the Chinese standard "Conveyor belts -- Specification for rubber-or plastics-covered conveyor belts of textile construction for underground mining".
Its scope clause reads: This standard specifies the time when running on a flat roller or groove roller, with rubber or plastics covered with fabric underground mining The conveyor belt should comply with the norms.
This standard does not apply to light conveyor ISO 21183-1 requirements. This standard does not include a plastic overlay requirements. This need to reach by the manufacturer and the purchaser in accordance with the type of plastic used protocol.
Appendix A is not in the relevant provisions of the standards, but it is recommended producers and purchasers of contents agreement. Appendix B indicates the detailed requirements with recommendations purchaser at the time of the purchase offer.
Whether straight conveyor run only after the installation to get evaluated. Accordingly, this requirement is beyond the scope of this standard, but attached Appendix C gives a recommendation on the run with the amount of deviation.
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Document preview — GB/T 31256-2014
National Standard of the People's Republic of China
- ICS
- 53.040.20
- Classification
- G 42
Issued by: General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Contents
- Introduction
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
- 4 structure
- 5 3 length
- 6 width
- 7 rubber cover layer
- 8.1 conveyor total thickness limit deviation
- 8.2 overburden thickness limit deviation
- 9 fabric transverse joint
- 9.1 General
- 9.2 layer
- 9.3 inner layer
- 9.4 with non-adjacent layer adjacent to layer
- 9.5 layer with joint
- 9.6 single conveyor belt, double conveyor belt and the overall fabric conveyor belt
- 10 fabric longitudinal joint
- 10.1 multilayer conveyor belt
- 10.1.1 Connector pitch
- 10.1.2 Connector Number
- 10.2 6 double conveyor belt
- 10.3 overall and single core fabric conveyor belt conveyor
- 11 Elongation
- 13 interlayer adhesion strength
- 14 into the groove of
- 15 7 Sampling
- 16 mark
- 17 flag
- Annex C (informative) deviation amount (Straight Line indicators)
- References
1 Scope
This standard specifies the time when running on a flat roller or groove roller, with rubber or plastics covered with fabric underground mining
The conveyor belt should comply with the norms. This standard does not apply to light conveyor ISO 21183-1 requirements.
This standard does not include a plastic overlay requirements. This need to reach by the manufacturer and the purchaser in accordance with the type of plastic used protocol.
Appendix A is not in the relevant provisions of the standards, but it is recommended producers and purchasers of contents agreement.
Appendix B indicates the detailed requirements with recommendations purchaser at the time of the purchase offer.
Whether straight conveyor run only after the installation to get evaluated. Accordingly, this requirement is beyond the scope of this standard. But attached
Appendix C gives a recommendation on the run with the amount of deviation.
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.
GB/T 9867-2008 Rubber, vulcanized or thermoplastic - Determination of abrasion resistance (abrasion rotating cylindrical drum machine method) (ISO 4649.
2002, IDT)
ISO 37 Rubber, vulcanized or thermoplastic - Determination of tensile stress-strain properties (Rubber, vulcanizedorthermoplas- tic-Determinationoftensilestress-strainproperties)
ISO 188 vulcanized rubber or thermoplastic rubber hot air and heat accelerated aging test (Rubber, vulcanizedorthermo- plastic-Acceleratedageingandheatresistancetests)
ISO 252 between the belt layer adhesion strength test method (Conveyorbelts-Adhesionbetweenconstitutiveel- ements-Testmethods)
ISO 282 sampling conveyor (Conveyorbelts-Sampling)
ISO 283 Conveyor belts - Full thickness tensile strength, elongation at break and the reference force elongation test method (Textilecon- veyorbelts-Fulthicknesstensilestrength, elongationatbreakandelongationatthereferenceload-
Testmethod)
ISO 583 fabric conveyor belt and the total thickness of the layers with a thickness of the test method (Conveyorbeltswithatextile carcass-Totalbeltthicknessandthicknessofconstitutiveelements-Testmethods)
ISO 703 laterally flexible conveyor (troughability) Test Method [Conveyorbelts-Transverseflexibility (Troughability) -Testmethod]
ISO 1120 Standard Test Method for Determination of static mechanical conveyor belt joint strength (Conveyorbelts-Determinationof
GB/T 33206 | GB/T 30314 | GB/T 32330 | GB/T 33514 | GB/T 33510 | GB/T 24136 | […]
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 30 pages — is available in the English PDF.
Referenced standards
Normative references
ISO 4649 · ISO 37 · ISO 188 · ISO 252 · ISO 282 · ISO 283 · ISO 583 · ISO 703 · ISO 1120
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Related Standards
GB/T 9867-2008 — Rubber, vulcanized or thermoplastic -- Determination of abrasion resistance using a rotating cylindrical drum device
GB/T 10003-2026 — Biaxially oriented polypropylene (BOPP) film
GB/T 10004-2026 — Plastic/Plastic laminated films and pouches for packaging
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GB/T 31256-2014
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