Teach you how to choose safety shoes

According to the statistics of the US Bureau of Labor, foot and leg protection: 66% of injured workers do not wear safety shoes, 33% wear protective shoes, and 85% of injured workers do not protect against hitting. Shoe parts. To protect the legs and feet from being dropped, rolled, sharp, molten metal, hot surfaces, or wet surfaces, workers must use proper foot protection, safety shoes or boots or leggings.
When choosing safety footwear, you can follow the following 5 points :
A. In addition to the selection of the suitable type of protective footwear according to the operating conditions, the protective footwear should also fit well and be comfortable to wear. This is very important. Carefully select the appropriate shoe size.
B. The protective shoes should have a non-slip design, not only to protect the person's feet from harm, but also to prevent accidents caused by the operator being slipped.
C, a variety of different properties of protective shoes, to achieve their own protective performance of the technical indicators, such as the toes are not injured, the soles are not stabbed injury, insulation and other conductive requirements. But safety shoes are not everything.
D. Carefully check or test before using protective shoes. In electrical and acid-base operations, damaged and cracked protective shoes are dangerous.
E. After the protective shoes are used, they should be properly kept. After the rubber shoes are used, they should be washed with clean water or disinfectant and dried to extend the service life. Safety shoe soles are generally made of a polyurethane injection molding material, which has the advantages of acid and alkali resistance, waterproof, oil resistance, insulation, wear resistance, and light weight. Wear 3 times better than ordinary rubber soles. Good flexibility, light weight, weight is only 50%-60% of rubber sole. Different safety shoes have different application scopes and different functions. The safety performance of the toe safety shoes in the protection of toes is AN1, which is suitable for loading and unloading, mining, petroleum, quarrying, metallurgy, ports, machinery, construction, forestry, and chemical industries. Anti-piercing safety shoes have a puncture-resistance strength of 1, which is suitable for mining, firefighting, construction, forestry, cold work, and machinery industries. Electrically insulating safety shoes are suitable for electricians, electronic operators, cable installers, and transformer installers. Matters needing attention: Suitable for work frequency below 1KV operating environment, working environment should be able to keep the upper dry. Avoid contact with sharps, high temperatures, and corrosive substances. Corrosion damage is not allowed on the bottom. Anti-static safety shoes can eliminate the accumulation of static electricity in the human body and are suitable for flammable workplaces, such as gas station operators and liquefied gas filling workers.
Matters needing attention: It is forbidden to use safety shoes as insulating shoes; Wear anti-static shoes should not wear insulated wool thick stockings or use insulating insoles; anti-static shoes should be used together with anti-static clothing; anti-static shoes generally do not exceed 200 The shoe resistance test should be performed once every hour. If the resistance is not within the specified range, it cannot be used as an anti-static shoe. Acid and alkali resistant safety shoes are suitable for electroplating, pickling, electrolysis, liquid dispensing, and chemical operators. Matters needing attention: acid and alkali shoes can only be applied to the general low concentration of acid and alkali workplaces; should avoid contact with high temperatures, sharp shoe uppers or shoe sole leakage; wear after use of water to wash shoes on the acid-base liquid, and then Dry to avoid direct sunlight or drying.
Before choosing, we must first understand the main hazards that result in direct or indirect injury to employees' feet. There are the following six:
A. Touched by hard, rolling or falling objects.
B. Pierce the sole or shoe body with a sharp object.
C. Cut by sharp objects and even tear the skin.
D. The site is lubricated and falls.
E. Exposure to chemicals, molten metals, hot and cold surfaces.
F. Working in an environment full of flammable gases, if the discharge of static electricity is not handled properly, it will become a source of combustion at any time, causing an explosion.

The right choice of safety shoes can be measured and selected from the structural aspects of the shoes:
A, shoe type: that is, the length and width of the shoe model, the width of the body of the shoe is tight with the foot.
B. Uppers: Whether the softness of leather can be natural and sticking when walking.
C. Shoe state: Can the entire shoe state stick to the feet without playing, not loose, but flexible.
D. Body: Leather, artificial leather, polyvinyl chloride and synthetic fibers are common.
These materials have their own advantages. For example, the leather body is more durable and more comfortable to wear, but its anti-corrosive liquid damage function is not good. Artificial leather can be applied in the case of waterproof, corrosive chemicals or other contaminants, but if the surface is depleted, the function will be affected ... PVC is most suitable for wet and slippery environments, but also easy to clean, But it can be broken down by some chemicals.
E. Toe cap: The cap of the safety shoe is fitted with a steel cap. Its main function is to protect the toe from being bruised or bruised. If employees are required to perform heavy work, such as construction workers or employees handling heavy goods, the materials used to manufacture safety shoes and steel caps must have corrosion resistance and impact resistance of 200 joules (J).
F. Inner pad: Whether the vibration aid function, sweat absorption function, massage function, and health care function structure have been correctly adopted.
G, Neri: Has it properly selected the air permeability function, waterproof function, warm function, and environmental protection function material.
H. Sole: Materials used are all rubber, vulcanized rubber, or polyvinyl chloride. The function of the sole is mainly abrasion resistance, chemical resistance, heat insulation and oil resistance, but due to the different characteristics of various materials, the function is also different. The steel plate is installed on the safety shoe's midsole to prevent the sole from being punctured by nails or hard objects. In addition to the use of non-slip rubber soles, the sole design is also important for anti-slip functions. The soles are selected for regional use, and various environments are used to configure substrates and non-slip requirements in varying degrees. For example: a relatively good environment with relatively non-slip, lightweight substrates, and outstanding assistance functions. The outdoor site environment is reinforced with anti-slip, wear-resistant substrates and withstands harsher environments. Subdivided into: white-collar workers, blue-collar workers, wages, administrative industries, light industry, heavy industry, construction sites, tourism, service industries.
According to the estimation standard, the most important feature of industrial safety shoes is that the toe cap can withstand the impact force of 20 kilograms of hard objects falling vertically from a height of 1 meter, absorbing 200 joules of kinetic energy. Most contemporary safety shoes have also added other safety features to develop different categories of products. Includes a just-designed version to prevent the sole from being pierced by nails and other sharp objects. Other relevant characteristics include slip resistance and grip. Other safety features of the sole include a preset minimum anti-static property, resistance to temperature changes, and resistance to specific fuel and chemical properties.
Comfortable and hygienic comfort shoes can increase worker productivity and prevent chronic foot or leg problems. The most important indicators of comfort performance include the upper material must meet specific waterproof and breathable standards, the internal materials should be easy to absorb sweat, and it is easy to dispel the smell after taking off the shoes. Other safety features include a well-fitting sole design, support for the foot and arch, suppleness and elasticity, plantar pads, and heel-resistant design.
Durable industrial safety shoes are made of leather or buffalo leather. The shoe sole is usually cast directly into the shoe upper, and the combined effect is quite perfect, minimizing the phenomenon of detachment, seepage or dusting. The soles are durable, wear-resistant and puncture-resistant. Therefore, even in the most difficult work environment, they can be used for safety protection during a fairly durable period of time. Fashion design is increasingly drawing attention from consumers, and more and more security models imitate the shape and color matching of sports shoes.
Safety shoe toe protection steel head must have sufficient function to prevent heavy and sharp material collision, in line with national standards. Consumers should choose to protect the type of toe safety shoes according to different workplaces. Among the five protective performance grades of An1 type, An2 type, An3 type, An4 type and An5 type which protect the toe safety shoes, the An1 level is the highest and the An5 level is the lowest. High-grade protective toe safety shoes have high technical indicators of pressure resistance and impact resistance at the front end, and protection of the toes is better, so the toe is more likely to be injured or bruised, and the more serious the injury is, the more the job becomes worse. It is necessary to use high-grade protective toe safety shoes, and for jobs where the toes may be bruised or bruised and the degree of injury is unlikely to be serious, low-grade protective toe safety shoes can be selected because of the level. High shoes are generally expensive, heavy and uncomfortable.
Therefore, the protection of toe safety shoes should be appropriately selected according to the characteristics of the operation. Consumers can use different price, style, and materials to protect their toe safety shoes according to their needs. In general, leather shoes are new, lightweight, and the outer sole is made of polyurethane material, which is wear-resistant and expensive. The adhesive shoe is a traditional process with a long production history. The price varies according to the style, material, etc.; The price of the car's end-shoe is relatively cheap, not the price of the end of the car's tire, depending on the style, material, etc.
In addition, the injection shoes and adhesive shoes have poor air permeability, and the sewn shoes have better air permeability and are more comfortable to wear. When purchasing, consumers should first confirm whether the manufacturer of the product has a national industrial product production permit (imported goods do not need) and safety mark certification. On this basis, check whether the product has the manufacturer's name and address, production license number, safety mark certification number, production date, product standard number, whether the product certificate and instruction manual are attached, and pay special attention to whether the shoe is There is a product name (or "protected toe" lettering), shoe size and protective performance level.
In addition, the distribution company should be required to present the inspection report of the batch of products and check the validity period. Consumers should look at the quality of their appearance when purchasing. You can check whether the helper has any disability, color difference, needle reversal, needle skipping, broken thread, and uneven stitching; whether the bottom is open or off; whether there is oversulfur, undersulfur, sulfur spray on the sole. Whether the header is skewed or not.
The soles of the conventional safety and safety shoes are made of PU material or rubber material. These materials change their physical and chemical characteristics over time, the use environment, and the wearing habits of the wearer, making the safety shoes wear-resistant and adhesively fastened. , hardness, comfort and other functions gradually weakened. Therefore, Anbang safety shoes are recommended to test the performance of safety shoes at intervals, and they must be replaced if they fail.

China Labor Insurance Network