Once the steel rivets are used, there will be three hazards in the application process of refrigerated transport vehicles: 1. The fracture surface of the bolt core will be corroded, which will pollute the inside surface of the refrigerated transport vehicle, and even the environment polluted food; 2. The corrosion of the riveting part is not good-looking; 3. The compressive strength and tensile strength of the steel rivets will be greatly reduced after corrosion, which is more serious harm Application safety of refrigerated transport vehicle.

The problem of the compressive strength of bolts, there is also a problem about the material of bolts that we can easily ignore. The lantern rivet is the problem of the compressive strength of bolts. In the whole process of long-term marketing, it is found that even if anti rust treatment materials, such as aluminum or metal materials, should also be used high toughness aluminum profiles or stainless steel rivets. Core rivets such as aluminum solid core bolts are widely used on the outside of refrigerated transport vehicles. Professional refrigerated transport vehicle manufacturers usually use high toughness 2117 aluminum alloy profile bolts, while most Chinese refrigerated transport vehicle manufacturers usually use 5050 aluminum alloy profile with high quality and low price and low compressive strength, or 5052 aluminum alloy profile.