The shoes and the technical standard

The shoes generally refers to work in different occasions with the have to protect your feet and legs from the foreseeable damage of footwear. And hit a safety shoes belong to high technique, and high value-added footwear products, protect toes shoes is installed on the top of the shoe have resistance to impact in baotou, made of leather or other material, protect the toes from harm of the shoes Boots) 。 A, general technical requirements: 1, structure of steel in baotou, the top of the shoe mat, shoes inside help, eyelet, shoelaces, shoes ears, waist, and skin, only after the bag, shoes, waist, shoe pad, insoles, ( The chamber) Bottom, fill out the core, the ball bottom, etc. 2, the thickness of the outsole: using direct injection molding, vulcanization, adhesive outsole thickness ( Excluding thickness) Not less than 4 mm; And rubber boots full thickness of the polymeric material is not less than 6 mm, tooth thickness ( The pattern) Not less than 3 mm, other materials of boots tooth height not less than 2. 5 mm, no pattern ( Tooth) Any parts of the shoe outsole thickness not less than 6 mm. 3, the appearance quality, can not have help disabled, colour and lustre is differ, and lines, jumpers, bolt, heavy needle code does not divide evenly, glue, spray over sulfur, low sulfur, sulfur, obvious flaws in baotou skew, etc. 2, 1 safety performance, high pressure: from the top of the shoe in baotou after 25 mm ( 3 mm, even under the bottom cutting. Error is shown in value ( 1% of the pressure testing machine platform. In the top of the shoe in the 35 mm high, 22 mm diameter play dough cylinders. Then 5 mm/min ( At a speed of 2 mm/min, applying to the required force for 1 min, to restore power to zero again. Squeezed out of silly putty, height is measured with a caliper, the value of the measured values of measured at its lowest level. Its value should comply with the rules. 2, resistance to impact, will be equipped with a puff of shoes head and cylindrical plasticine under impact machine, fixed well checked the top of the shoe, improve the impact hammer ( 23kg( 0. 2kg) To the required height and free fall impact the top of the shoe. Remove the plasticine measured with a caliper, its value should conform to the rules. 3, in baotou, compression resistance and shock resistance requirement: experiment method and the top of the shoe in the same way, but after test deformation of baotou in spacing should be no less than 22 mm. 4, in baotou corrosion resistance requirements: due to reasons such as foot sweat and moisture corrosion in baotou, and affect the quality of the shoes. So puff should have corrosion resistance. Requirement is two white filter ( 100 m wide, 150 mm) long Immersed in 1% NaCl solution, its end at the other end are on puff above and below. Remove the filter paper after 48 h, check for signs of corrosion NaCl solution in baotou, measuring the area of each spot ( mm2) For corrosion spots must not exceed 5 points, and each spot shall not be greater than 2. 5mm。
This is an global standard which acts as a form of promise that GuangZhou BEF Shoes Material Co.,ltd manufatures according to the finest quality standards.
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