Tyre protection chain
During use, there will be -- broken joints and broken rings. This is because:
(1) the protection chain in the casting process of the material can not meet the requirements.
(2) the casting process contains bubbles (commonly known as trachoma) or excessive impurities.
(3) there is a problem in the process of chain heat treatment, and the heat treatment is not conducted according to the normal heat treatment specification. (problem 1: the specified temperature is not reached. Question 2: not enough time for insulation. Problem 3: not choosing the right cooling medium.
4. Before leaving the factory, the tensile test was not done one by one according to the regulations.
In the end, some manufacturers cannot achieve a certain scale or blindly reduce the price of products in the production process, so that the quality of products cannot be guaranteed.
Tianjin jiofeng heavy industry machinery co., LTD is the largest manufacturer of tire protection chain in China, whose products are exported to six continents.