Spring Process Usage

In addition, the forming process and heat treatment process of spring steel wire should also be considered. Cold drawn spring steel wire and oil quenched and tempered spring steel wire are both supplied and directly wound into springs. After forming the springs, they are directly used after stress relief treatment. The tensile strength of cold drawn spring steel wire is slightly higher than that of oil quenched and tempered steel wire. The elasticity of large-sized cold drawn steel wire is too large, making it difficult to wind springs. Therefore, the specification of cold drawn spring steel wire is generally less than 8.0mm, and the specification of oil quenched and tempered steel wire is generally less than 13.0mm. In fact, springs with a diameter of 13.0mm are mostly made of lightly drawn spring steel wire, which is cold drawn and then quenched and tempered for use. Steel wires with a diameter of more than 15.0mm are mostly produced by heating and winding technology to produce springs
Carbon spring steel is a widely used and widely used type of steel in spring steel. Steel contains 0.60% to 0.90% carbon and 0.3% to 1.20% manganese, with no additional alloying elements added, resulting in relatively low usage costs. Carbon spring steel wire can achieve high tensile strength, sufficient toughness, and good fatigue life through appropriate processing or heat treatment. However, due to the need to produce steel wires according to standards, in addition to maintaining high elastic limits and good toughness indicators, finished steel wires must also consider fatigue limits and the fatigue life of springs. Therefore, there are higher requirements for the purity, non-metallic inclusion content, gas content, ferrite content, and surface decarburization degree of steel
Among them, tension and compression springs are mostly in mass production, with complex specifications but suitable for slight modifications to be applied. If a small amount of spring characteristics are needed and not picky, they are easy to purchase on the market but have a higher unit price
And users of exclusive institutional parts mostly order from professional spring manufacturers; If you are unable to design it yourself, you can also pay an additional fee and ask the manufacturer to cooperate in trial production
In recent years, the industry has adopted CNC computer-controlled or mechanical spring machinery for automated and labor-saving production, with relatively stable quality. Based on ISO and increasing international requirements for quality, almost all spring manufacturers are able to provide report data for testing spring characteristics