HG/T 2820-1996 Nylon and polyester-nylon dipped canvas for conveyor belts HG/T2820-1996 Standard download decompression password: www.bzxz.net

HG/T2820—1996
At present, nylon and light nylon canvas are one of the main skeleton materials for conveyor belts. There is a great demand at home and abroad, and there are many domestic manufacturers. However, since there is no national standard or industry standard, each manufacturer produces or sells according to the enterprise standard, which has a certain impact on the development and application of the product. In order to promote the development of the rubber industry and the textile industry, expand the application scope of chemical fibers, and meet the needs of the domestic and foreign markets, we have formulated the "Nylon and Polyester Dipped Canvas for Conveyor Belts\Industry Standard (hereinafter referred to as this standard). This standard adopts the Japanese standard of the 1990s in a non-equivalent manner, in which the dry heat shrinkage index reaches or exceeds the Japanese standard, and the dry heat shrinkage non-hook rate index is added. Regarding the dip The breaking strength of rubber canvas, the superior products meet the Japanese standard; the first-class and qualified products are formulated in combination with my country's national conditions and are at the domestic advanced level. The square dry weight of nylon and lacquered nylon rubber canvas is relatively high, and the others meet the requirements of Japanese standards. For the test method, we equivalently adopted the standard JIS1096-1990 "Temporary Fabric Test Method", and supplemented it according to the technical exchange materials between my country and Japan and the relevant national standards issued and implemented in my country. The adhesive formula for the bonding strength test is specified in Appendix A.
Appendix A of this standard is the appendix of the standard.
This standard is issued by the People's Republic of China The Technical Supervision Department of the Ministry of Chemical Industry proposed this standard. This standard is under the jurisdiction of Gaodao Rubber Industry Research Institute. The drafting units of this standard are Qingdao No. 6 Rubber Factory and Anqiu Polyester Cloth Canvas Factory. The main drafters of this standard are Sun Liansheng, Zhou Jiacun, Sun Xiumin, Liu Yudong and Zhou Limin. 45
1 Fan Gui
Chemical Industry Standard of the People's Republic of China
Nylon and Polyester Canvas for Conveyor Belts
HG/T28201996
This standard specifies the varieties, specifications, technical requirements, external quality, and test of nylon and polyester canvas for conveyor belts (hereinafter referred to as conveyor belt canvas without glue) Methods and sampling storage, transportation, packaging, marking, etc. 2 Reference standards
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards will be revised. Parties using this standard should explore the possibility of using the latest versions of the following standards. GB/T6759-86 Determination of interlayer bonding strength of conveyor belts GB/T2909-94 Cotton canvas for rubber industry 3 Product classification
3.1 Varieties
a) Nylon dipped canvas, code "NN\, its warp and weft directions are both nylon 6 fibers. b) Polyester-nylon dipped canvas, code \EP\, its warp direction is (polyester) fiber, and its weft direction is nylon 66 fiber. 3.2 Specifications
According to the warp breaking strength, the rubber-impregnated canvas for conveyor belts is divided into 80, 100, 125, 150, 200, 250, 300, 350, a)
400, 500, 600, 630N/mm and other specifications. According to the width, the rubber-impregnated canvas for conveyor belts is divided into 800, 1009, 1200, 1400mm and other specifications. 3.3 Varieties, specifications, markings
The variety and specification markings of canvas for conveyor belts include the following items: a)
Variety code;
Breaking strength specification:
Width specification,
Marking example:
200 --- 1 400
Width, mm
Breaking strength in warp direction, N/mm
Product code
4 Technical requirements
4.1 Physical properties
4.1.1 The physical properties of nylon dipped rubber cloth shall meet the requirements of Table 1. 4.1.2 The physical properties of nylon dipped rubber canvas shall meet the requirements of Table 2 Approved by the Ministry of Chemical Industry of the People's Republic of China on 1996-06-28 and implemented on 1997-01-01
—1996bZxz.net
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