[This site - shoes and life] What is the safety shoes, it is the general category of safety shoes and protective footwear, also known as labor insurance shoes. Generally refers to footwear worn in different workplaces that protects the feet and legs from foreseeable injuries. The safety shoes on the market mainly include protective toe and moth-proof shoes, insulating shoes, anti-static shoes, conductive shoes, steel-making shoes, rubber boots, and cold-proof shoes.
Ben Wang shoes believe that, according to the functional classification of safety shoes: protective toe shoes, insulated shoes, anti-static shoes, conductive shoes, steel shoes, rubber boots, cold shoes.
(1) Toe-protection shoes. The main purpose is to prevent injuries to the foot and toes. For example, drums that roll when handling heavy loads or loading and unloading materials, heavy pipes that hit the feet or accidentally kicking sharp metal plates. The front head of the shoe is lined with a metal material that has good impact resistance, high strength, and light weight. The strength and impact resistance of the shoe must be tested before reaching the specified standards. Pay attention to choose different strength safety shoes according to the weight of the job.
(2) Insulation shoes. The role of insulating shoes is to minimize the risk of electric shock. Because the electric current flows through the contact point through the human body into the ground when the electric shock is applied, therefore not only the insulating gloves but also the insulating shoes must be worn during electrical operation. According to the pressure range of 20kV, 6kV and 5kV several kinds of insulation shoes, use must be selected according to the scope of work. Insulated shoes should be inspected and maintained frequently. If it is damp or worn, it will not protect it.
(3) Anti-static and conductive shoes. Anti-static shoes are suitable for preventing accidents caused by static electricity on the human body and avoiding accidental shocks to the human body caused by 220V power frequency capacitance devices. Conductive shoes are used in places that are more sensitive to human body's static electricity and may cause fire or explosion. Some of these shoes are safety shoes and rubber shoes equipped with anti-static or conductive soles, the entire shoes without metal, in order to reduce the possibility of friction and fire. The shoes are tested for resistance from the beginning. It is then tested periodically to ensure that the shoe's maximum resistance does not exceed the allowable value.
(4) steel-making shoes and shoe covers. This type of shoe, also known as caster shoes, mainly prevents the burnt puncture of the foot. This kind of shoes is resistant to pressure and hard to burn. The upper has oil-impregnated kraft and canvas-inset leather, and the soles are all made of cow leather. In order to prevent molten metal splashes from being burned, high-waist and easy-to-use styles are used. It is also possible to use a shoe cover to cover the shoe opening and the trouser legs. The shoe cover is made of canvas, asbestos, and aluminum film.
(5) rubber boots. According to its use anti-acid boots, waterproof boots, anti-oil shoes and so on. Anti-acid boots are suitable for places with acid and alkali and other corrosive liquids on the work surface. They are made of acid and alkali resistant rubber, and also have acid and alkali resistant trousers that are connected together in trousers. The waterproof boots are used for water or splashing on the ground. Work, the basic material is rubber, there are miners waterproof boots, special boots for aquatic products, transplanting ankle boots and so on. Oil-resistant shoes are used for oily work on the ground. They are made of rubber or polyethylene plastic, and are available in boots, shoes, and so on.
(6) Cold shoes. It is suitable for wearing when working in severe cold and low temperature environment. It has cotton shoes, fur boots and felt boots and so on. It has good thermal insulation performance.
In addition to the above several kinds of protective shoes, there are also suitable for road construction workers insulated soles, suitable for construction workers soles reinforced, suitable for food, wine workers shoes soles moisture-proof protective shoes and so on.
Functional standard
Anti-mite--adopts industry standard (protection toe safety shoes LD50-94), protect toe safety shoes with steel lining as inner lining, not only has static pressure resistance and impact resistance, stab-proof, anti-smashing, is very safe. Inspection, pressure resistance is 10KN, impact resistance of the toe cap 23KG impact hammer after falling freely from 450MM height impact impact toe cap, shoe deformation gap >= 15MM, mainly applicable to mining, mechanical construction safety, metallurgy, steel, port lifting and other heavy industry The shoes used by the industry to protect the safety of the toes are supported by rubber and elastomers, which are comfortable to wear and do not affect the daily labor.
Anti-puncture - protects the sole of the foot from sharp objects and can withstand up to 1100 N of puncture force, the national special standard.
Anti-static - anti-static shoes according to GB4385-1995 standard production, resistance value range 100K'Ω-1000M'Ω, the product has good ventilation performance, anti-static, wear-resistant, anti-skid and other functions, mainly applicable to aviation, aerospace Dangerous chemicals are used to prevent flammable and explosive accidents due to static electricity.
Oil Resistance - According to oil resistance standard test, volume increase is not more than 12%. If the volume does not increase, and shrink, the shrinkage is greater than the original volume of 0.5% or the hardness increase is greater than 10 (Shore A), according to GB/T 3903.1 provides flexion 40,000 times the crack growth is not greater than 7mm.
Anti-slip - rubber tendon bottom, excellent anti-slip performance.
Insulated-insulated shoes can be used as auxiliary safety equipment and labor protection equipment when working on AC 50HZ, 1000V and below or DC 1500V and below power equipment.
Wear-resistant - high-quality shoes rubber sole, suitable for a variety of environments.
Cold protection - cold shoes are used to protect the feet of cryogenic workers from frostbite.
Waterproof - water shoes used for water or splashing water in the workplace.
Safety shoes (labor safety shoes) quality identification:
1. Identification of shoe upper materials: Nowadays, safety shoe upper materials on the Chinese market are commonly found in: fleece leather, transfer film leather, crushed cowhide, and leather. In recent years, in order to synchronize with the EU CE standards, domestic manufacturers have also started importing. Abroad conforms to the European standard thick buffalo leather. Since the appearance of the transfer film leather material is very similar to the appearance of leather, many consumers are unable to judge, and comparative analysis of the two materials is now conducted.
A look: leather (the type of leather, in the leather products industry is the distinction between synthetic leather and a custom name) surface has obvious irregular patterns and natural pores, cold-resistant folding, breathable wicking performance; transfer film leather Synthetic natural leather is collectively referred to as an artificial surface layer on the loose flesh layer of the lower layer of natural leather. Its grain pattern is similar to that of natural leather, but it has no pores and feels hard, but it has good waterproof performance.
Two touch: feel full, full of sense of elasticity, hand feel no sense of cold for the dermis, feel hard, a sense of cool mostly shift leather. Observed from the cross-section: there is no obvious thin film layer on the dermis section. Scratching the substrate by hand will reveal that there are fluffs and scratches that are longer and longer. This is the most obvious performance of the fiber substrate (dermis base); The leather is ground on the loose flannel layer of the natural leather or the fibers are ground, adhered by a high-pressure adhesive, formed into a sheet and then adhered to an artificial surface layer, and the surface layer is scratched with a knife edge, and some surfaces may be entirely covered. Peel off.
2, production process: domestic safety shoes production process points: molding, injection, adhesive, seams. Injection type safety shoes are light, the soles and uppers have high viscosity, and the outer soles are usually made of polyurethane materials, which are wear-resistant and waterproof. Adhesive shoes are a traditional process with a long production history. General shoe soles use rubber and other materials for shoe glue. Adhesion of the upper; the price of sewn-soled shoes and moulding technology is cheaper and is a low-grade product. We will not introduce it here.
3. Shoes for safety shoes: To protect toe safety shoes requires steel toe caps, puncture-proof safety shoes require steel floor, anti-static shoes need anti-static agent and anti-static wire, etc. Observe, it is necessary to carry out protective performance tests, to understand whether the The supplier has obtained the product grade and the shoe material quality meets the requirements.
4, product comparison: conventional comparison is divided into 2 ways, one for finished shoe cross-section anatomy comparison, appearance technology comparison, the safety shoes longitudinal cut, after cutting can be clearly observed to help surface section, accessories section, sole cross section, The internal structure and internal process of the steel head, steel bottom plate and shoes, it is worth mentioning here is that the density of single-density sole cross-section is the same, by hand relatively hard; double-density sole cross-section can be observed clearly up and down two layers Its density is not the same, the upper density is low, the lower density, hand elasticity is good; if the sole is a two-color molding, but the same cross-sectional density, but also belong to the type of single density. The second is to try on, try to compare the comfort of the safety shoes, feel the comfort of the shoes by walking, squatting, kicking, heavy stepping and other movements. (This site - the most authoritative and most professional footwear information center. Next: how to dress with leather shoes)
Flower Printed Fleece Fabric,Printed Polar Fleece Fabric,Anti Pilling Fleece Fabric,Micro Polar Fleece Fabric
SHAOXING XIANCHENG TRADING CO.,LTD , https://www.xcxssfabric.com