Problems in the use of steel in domestic fastener industry

Problems in the use of steel in domestic fastener industry

Problems in the use of steel in domestic fastener industry Industrial aluminum fittings, as the connecting parts of the main unit and components, bear the basic performance of the main body and various requirements for the basic functions of the components together with the host, and must adapt to high temperatures. high pressure. Low temperature. shock. Corrosion, heavy load, alternating stress, shear and anti-twist, and other occasions. However, the probability of accidents caused by fastener failure is very high, so the materials used to make fasteners must be carefully selected in advance.

Many domestic fastener companies suffer from high customer claims due to product quality problems. It is true that many quality problems are caused by unqualified materials. How to correctly select fastener materials becomes one of the topics that fastener companies are increasingly concerned about.

Regarding the status quo and existing problems of China's fasteners for industrial aluminum fittings, the material consultant of the Fasteners Professional Association of China Machinery General Components Industry Association stated: "Our country is currently a fastener producing country and is the world's largest. Steel-producing countries, but the development and production of fasteners steel development started late.

The specifications of cold heading steel are relatively small and cannot meet the current domestic demand for fastener production and the demand for exports. Many steel grades of G3506, G3507, G4105 and ASTM are also used in the production and market circulation of cold heading steel.

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