GB/T 11063-2014 Polyamide plate based flat belt
1 Scope
This standard specifies the terms and definitions, structure, type and designation, requirements, test methods, inspection rules as well as marking, labeling, packaging, transport and storage of polyamide plate based flat belts (hereinafter referred to as the “flat belts”).
This standard is applicable to flat transmission belts with longitudinally-stretched polyamide plate base as tension layer.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 524 Flat transmission belt
GB/T 1040.1 Plastics - Determination of tensile properties - Part 1: General principles (GB/T 1040.1-2006, ISO 527-1: 1993, IDT)
GB/T 1040.2 Plastics - Determination of tensile properties - Part 2: Test conditions for moulding and extrusion plastics (GB/T 1040.2-2006, ISO 527-2: 1993, IDT)
GB/T 5756 Conveyor belts - Terms and definition (GB/T 5756-2009, ISO 5284: 1986, NEQ)
GB 11210 Rubber vulcanized - Antistatic and conductive products - Determination of electrical resistance
HG/T 2729 Vulcanized rubber and slip - Determination of friction coefficient - Slipping method
3 Terms and definitions
For the purposes of this document, the terms and definitions given in GB/T 5756 and the following apply.
3.1
tensile strength
ratio of the maximum tensile force applied to the original cross-sectional area of the polyamide plate base of the specimen when the test piece of the flat belt is stretched to break
3.2
stress of 1% elongation
ratio of the tensile force applied to the original cross-sectional area of the polyamide plate base of the test piece when the test piece of the flat belt is stretched to 1% elongation
4 Structure
The tension layer of a flat belt is based on a polyamide plate. In terms of structure, a flat belt is generally composed of a top cover, a ply, a sheet base, another ply, and a bottom cover. Alternatively, it can also be composed of a polyamide plate base and leather or other materials (see Figure 1 and Table 1).
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Structure
5 Type and labeling
6 Requirements
7 Test methods
8 Inspection rules
9 Marking, labeling, packaging, transport and storage
Annex A (Normative) Determination of tensile strength, stress of 1% elongation, elongation at break, and joint strength
