Because the iron snow chains have gradually withdrawn from the market, the author has not recommended iron snow chains, mainly because the tires are too damaged. Therefore, only rubber chains and beef tendon chains are recommended here. By the way, it should be noted that there is no complete quality system standard for snow chain products industry at present. Therefore, the following example is based on the quality inspection standard of Bowen Snow Wolf brand snow chains.
In terms of product characteristics, the snow chain is 1. Wear resistance II. Cold resistance 3. Tear resistance 4. Buckling resistance 5. Corrosion resistance.
These five technical indicators, big factory brands and fake and shoddy products are very different in these product indicators. As the product of automobile driving safety protection, snow chains are used to deal with extreme weather, ice and snow roads and high-intensity driving conditions. Therefore, any of the above five problems may lead to tragedy.
The test results of the above indicators will be introduced to you in several articles. Here are a few indicators:
The wear resistance is not enough, and after a period of use, the chain pieces will become thinner and some key parts will break;
Cold tolerance is not enough. For example, in Siberia, which is famous for its severe cold, people seldom use iron pipes. The expansion coefficient and severe cold are easy to cause pipeline fracture, and the snow chain is not sufficiently treated in cold resistance, so it is easy to harden and break in extremely cold weather.
Tear resistance mainly means that when driving in uneven areas, there are many gravel roads and gullies that require high tear resistance of snow chains.