QB/T 5246-2018 PDF EnglishUS$110.00 · In stock · Download in 9 seconds
QB/T 5246-2018: Leather products - Test method of flexing resistance for belt Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure Status: Valid
QB/T 5246-2018: Leather products - Test method of flexing resistance for belt---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/QBT5246-2018QB LIGHT INDUSTRY STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 59.140.35 Classification No.. Y 48 Filing No.. 63716-2018 Leather products - Test method of flexing resistance for belt Issued on: MAY 08, 2018 Implemented on: SEPTEMBER 01, 2018 Issued by. Ministry of Industry and Information Technology of PRC Table of ContentsForeword... 3 1 Scope... 4 2 Principle... 4 3 Device... 4 4 Preparation of specimens... 5 5 Test method... 5 6 Test report... 6ForewordThis standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard was proposed by the China Light Industry Federation. This standard shall be under the jurisdiction of the National Technical Committee for Standardization of Leather Industry (SAC/TC 252). Drafting organizations of this standard. Dongguan Hengyu Instrument Co., Ltd., National Leather Products Quality Supervision and Inspection Center (Guangzhou), Guangdong Huizhou Quality Metrology Supervision and Inspection Institute, China Leather and Footwear Industry Research Institute, Guangzhou Quality Supervision and Inspection Institute, Zhejiang Zhishang Industrial Co., Ltd. Guangzhou Branch. The main drafters of this standard. Chen Zongliang, Liu Long, Su Hui, Zhao Liguo, Gao Jun, Ma Qunliang, Deng Chengliang, He Yanli. This standard was published for the first time. Leather products - Test method of flexing resistance for belt1 ScopeThis standard specifies the principle, device, test method, test report of the dynamic folding test of leather belt products. This standard is applicable to belt products such as waist belts, shoulder straps, soft handles for luggage.2 PrincipleAccording to the bending force of the specimen, select the appropriate initial distance and weight, to perform reciprocating folding motion at a certain frequency, to test the quality of waist belts, shoulder straps, soft handles and other belt products.3 Device3.1 Dynamic folding test machine It shall include the components specified in 3.1.1 ~ 3.1.5; the schematic diagram is shown in Figure 1. 3.1.1 The specimen fixing device consists of a pair of specimen clamps, one of which can move in the left and right direction, whilst the other specimen clamp can move in the front and back direction. The initial positions of the two specimen clamps are in a straight line. 3.1.2 The weight loading device is connected to the specimen clamp that moves left and right; it can load the weight as needed. When the weight is not loaded, the specimen clamp is not subjected to force and can move freely left and right. 3.1.3 The driving device is connected to the specimen clamp that moves forward and backward; drives the specimen clamp to make a reciprocating motion with a stroke of (55 ± 3) mm and adjustable frequency, so that the two specimen clamps make a reciprocating folding motion perpendicular to the specimen installation direction. 3.1.4 The counter records the number of folding times. 3.1.5 The control device has an automatic shutdown function when the specimen is abnormal during the test; automatically records the number of folding times at this time. ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. 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