According to the estimated standard, the main feature of industrial safety shoes is that the shoe head can withstand the impact of 20 kg of hard objects from a height of 1 m and absorb the kinetic energy of 200 joules. Most contemporary safety shoes also add other security features to develop different categories of products. Includes a new design to prevent the foot from being pierced by nails and other sharp objects. Other related features include skid resistance [forward motion] and grip [backward motion]. Other safety features of the sole include preset minimum antistatic, temperature resistance, specific fuel and chemicals [ph].
Comfort and hygiene
Comfortable safety shoes can improve worker productivity and prevent chronic disease in the foot or leg.
The most important index of the comfort performance includes the shoe surface material must meet the specific waterproof and breathable standard, inside the material should be easy to absorb sweat, after taking off the shoes easy to disperse the smell.
Other safety features include foot design, support for foot and arch, soft flexibility, foot pads and foot and shockproof design.
durable
Industrial safety shoes should be made of cowhide or buffalo hide. The sole is usually directly cast into the vamp, and the combined effect is quite perfect, reducing the bottom, water seepage or dust. The sole is wearable, wear-resistant and punctured, so it can play a safe and protective role even in the most difficult work environment.
When choosing safety footwear, follow these 5 tips:
In addition to choosing suitable types according to the working conditions, A and safety footwear should also fit the feet and make them comfortable, which is important to carefully select the appropriate shoe size.
B. Safety shoes should have anti-slip design, not only to protect human's feet from injury, but also to prevent accidents caused by slipping of operators.
C. Safety shoes with different performances should meet the technical specifications of their respective protection performance, such as not being hurt by the toe, not punctured by the foot, and conductive to insulation. But safety shoes are not everything.
D. Carefully check or test before using safety shoes. In electrical and acid-base operations, damaged and cracked safety shoes are dangerous.
E. After the shoes are used, they should be properly kept. After the rubber shoes are used, they should be washed and dried with water or disinfectant to prolong the service life.
The shoe sole is usually made of polyurethane material, which has the advantages of acid and alkali resistance, waterproof, oil resistance, insulation, wear-resisting and light. It is three times longer than ordinary rubber sole. Soft and light weight, only 50% to 60% of rubber sole. Different safety shoes have different application ranges and different functions:
Protect toe safety shoes.
The safety of inner baotou can be AN1 level, suitable for loading and unloading, mining, petroleum, mining, metallurgy, port, machinery, construction, forestry, chemical industry and so on.
Puncture safety shoes.
Anti-puncture strength is 1 grade, suitable for mining, fire fighting, construction, forestry, cold work, machinery industry, etc.
Electrical insulating safety shoes.
Applicable to electrician, electronic operator, cable installer, transformer subcontractor, etc. Note: suitable for operating environment under 1KV, the working environment should be able to keep the shoes dry. Avoid contact with sharp, high temperature and corrosive substances, and help the bottom not to corrode.
Acid and alkali safety shoes.
Suitable for electroplating, pickling, electrolytic, liquid, chemical operators, etc. Note: acid and alkali leather shoes can only be used in the low concentration of acid and alkali workplaces; Should avoid contact with high temperature, sharp instrument damage vamp or sole leakage; After wearing, rinse the acid and alkali liquid on the shoes and dry them to avoid direct sunlight or drying.
Before choosing, we need to understand the main harm caused by direct or indirect injury to the foot of the staff, including the following 6 items:
A, touched by hard, rolling, or falling objects.
B. The sharp object pierces the sole or the shoe.
C, cut by sharp objects and even tear the skin.
D. Site lubrication and fall.
E. Contact with chemicals, molten metal, high temperature and low temperature surfaces.
F. Work in an environment full of flammable gases. If the discharge of static electricity is not properly handled, it can become a source of ignition at any time and cause an explosion.
The correct choice of safety shoes can be measured and selected from the structure of the shoe:
A. Shoe type: the length of the shoe and width model, the width of the shoe body and the degree of the foot.
B. Vamp: whether the leather softness can be naturally and adhered to when walking.
C, shoe state: the whole shoe state can stick the foot without the foot, loose and not take off, full of flexibility.
D, shoes: common leather, artificial leather, PVC and synthetic fiber, etc. These materials have their advantages, for example: real leather shoes are more durable and wear well, and they are more comfortable to wear, but they are less effective in the destruction of corrosive fluids. Artificial leather can be applied to waterproof, corrosive chemicals or other contaminants, but if the surface has loss, the function will be affected. Polyvinyl chloride is most suitable for wet and slippery conditions and is easy to clean, but can be decomposed by some chemicals.
E, toe: safety shoes are equipped with a steel cap. The main function is to protect the toes from being hit or crushed. If employees need to perform a heavy work, such as construction workers or carry heavy items, are the safety shoes manufacturing material with corrosion resistant performance of steel cap and 200 bajaur (J) impact resistance.
F. Padding: whether it is correct to use the aid vibration function, the absorption function, the massage function, the health function construction.
G, internal: have the proper selection of breathable function, waterproof function, warm function, environmental protection function material.
H, sole: the material is commonly used with rubber, vulcanized rubber, or PVC etc. The sole function is wear-resisting, anti - chemical corrosion, heat insulation and oil - proof, but because of the different material characteristics, so the function also has different. The sole of the safety shoe is made of steel sheet, which is used to prevent the sole from being pierced by nails or hard objects. The design of the sole of the sole is not only used to prevent slippery rubber bottom, the design of the sole is also very important to prevent slippery function. The sole is chosen for the regional and various environmental conditions, such as the use of different levels of materials and anti-skid requirements, for example, the good environment is relatively anti-skid, light base material, and the relief function is prominent. The outdoor site environment is used to strengthen the anti-skid, wear-resisting material and withstand the harsh environment. Subdivided into: white-collar, blue collar, salary, administrative industry, light industry, heavy industry, site construction, tourism, service industry, etc.
Fashion design is getting more and more attention from consumers, and more and more security models are imitating the modeling and color matching of sneakers. According to the Bureau of Labor statistics show that: the foot and leg protection: 66% leg injured workers did not wear safety shoes, protective shoes, 33% are in general recreational shoe, injured workers, the shoe department 85% hit because items are not protected. To protect the leg feet from under item drops, rolling, spikes, molten metal wet, hot surface, surface damage, workers must use appropriate foot protection and safety shoes or boots or leggings. The toe steel head of safety shoes must have sufficient function to prevent heavy and sharp material collision, which conforms to the national standard.
The consumer should choose to protect the type of toe safety shoe according to different job site. In the An1, An2, An3, An4 and An5 levels of protection of toe safety shoe products, An1 has the highest level and the lowest level of An5. High level of protection of digit its front-end pressure resistant and impact resistant safety shoes products technical indicators are high, it is good to the protection of digit, so the more digits are easy to be hurt or crushed, injury degree, the more the more serious job choose high level of protection of digit safety shoes, and for some digits are likely to be above or crushed, degree of injury is unlikely to be a serious work, can choose the protect toes with low level of safety shoes, shoes generally high prices because of the high level, in heavy, comfort is poor. Therefore, according to the characteristics of the operation, the protection of toe safety shoe products should be appropriately selected.
Consumers can choose different price, style and materials to protect toe safety shoes according to their own needs. Usually, the leather shoes are new and light, with polyurethane material on the outer base, which is wear-resistant and expensive. Adhesive shoes are a traditional process of production history. Prices vary according to their styles and materials. The price of sewing tyre soles is relatively cheap, and it is not the price of the flat tire. In addition, injection shoes and adhesive shoes air permeability is poor, stitched shoes are good air permeability, comfortable wear.
When purchasing, the consumer should first confirm whether the manufacturer of the product has the national production license for industrial products (imported goods do not need) and the safety sign certificate. Based on this to see if the product has a name and address of manufacturer, production license number, security logo certification number, production date, product standards, product certificate and operation instruction, whether attached to pay special attention to see if there are any more product name shoes (or "protection of digit"), shoe and protective performance levels. In addition, the distributor shall be required to produce the test report of the batch of products and check the expiration date.
We should check the appearance quality when purchasing. You can check whether there is any disability, color, thread, thread, thread, thread and needle. Whether the base has the glue, mater; Whether the sole has sulfur, sulfur or sulfur; Whether the inner baotou is skewed or not.
Usually labor protection safety shoes soles made of PU material or rubber materials, the material over time, using the environment and the wearer's wearing habits change on physical and chemical properties, make the safety shoes wear, adhesive fastness, hardness, comfort, and other functions gradually weakened.
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