What are the general wearing properties of labor insurance shoes?

Today, let me tell you about the wearing performance of labor insurance shoes. What kind of shoes are labor insurance shoes? What are the advantages compared with traditional shoes?In what environment is it used?If you don't know the type of shoes, you will definitely have the above questions. Labor insurance shoes are a kind of shoes that can protect the toes from external damage. They are anti-piercing, acid and alkali resistant, and insulated. They are generally suitable for workers in dangerous working environments.

According to different protection properties, it is also divided into many categories. The common ones are anti-static, insulation, anti-smashing, non-slip, anti-piercing and other properties of shoes.So what are the wearing properties of labor insurance shoes?Let's take a look at it together.

(1) Impact resistance of Baotou: In the impact test using the specified heavy steel hammer, the height of the gap under the baotou when the baotou is hit should be less than the specified value, and the Baotou should not have any penetrating cracks in the direction of the test axis.It is worth noting that the regulations of labor insurance shoes on the weight, specifications, impact height and structure of the hammer in national standards are different, so they should be distinguished during actual testing.

(2) Puncture resistance: The experimental machine is equipped with a pressure plate, and the pressure plate is equipped with an experimental nail. The experimental nail is a head with the tip cut off. The hardness of the nail head should be greater than 60HRC.Place the sole sample on the chassis of the experimental machine. The position allows the experimental nail to stop piercing through the outsole. The experimental nail pierces the sole at a speed of 10 mm/min±3 mm/min until it penetrates, and the maximum force required is recorded.

Select 4 points on each sole to stop the experiment (of which at least 1 point is at the heel), each point is not less than 30mm apart, and the interval from the edge of the insole is greater than 10 mm.For the bottom with non-slip blocks, the piercing should be stopped between the blocks.2 of the 4 points should stop the test within an interval of 10-15 mm from the edge line where the planting base is located.If humidity will affect the results, the soles should be immersed in deionized water with 20℃±2℃ for 16±1h before the test.

(3) Electrical properties of conductive shoes and anti-static shoes: After the shoe samples are conditioned in a dry and wet atmosphere, clean steel balls are filled into the shoes and placed on the metal probe installation, and regular resistance testing instruments are used to measure the resistance between the first two probes and the third probe.Under normal circumstances, conductive shoes require that the resistance should not be greater than 100K ohms, while anti-static shoes require between 100K ohms and 1000M ohms.