The impact test is carried out with a steel impact hammer of the specified weight. When the toe cap is impacted, the gap height under the toe cap should be less than the specified value, and there should be no penetrating cracks in the toe cap in the direction of the test axis. It is worth noting that the requirements of the weight, specifications, impact height and the structure of the testing machine in the national standards are different, and they should be distinguished during the actual test.
Detection of the bottom steel plate of steel toe shoes;
The testing machine is equipped with a pressure plate, and the pressure plate is equipped with test nails. The test nail is a head with a truncated tip. The hardness of the nail head should be greater than 60HRC. Place the shoe sole sample on the chassis of the testing machine so that the test nail can pierce through the outsole. The test nail pierces the sole at a speed of 10 mm/min ± 3 mm/min until it penetrates. Record the required The maximum force. Choose 4 points on each sole for testing (at least one point is on the heel), the distance between each point is not less than 30mm, and the distance from the edge of the insole is greater than 10 mm. The bottom with non-slip blocks should be pierced between the blocks. Two of the four points should be tested within a distance of 10-15 mm from the edge line where the bottom corrugated plant is located. If humidity will affect the results, the shoe sole should be immersed in deionized water at 20℃±2℃ for 16±1h before testing.