According to the type of material, spring steel wire can be divided into:
1. Carbon Spring Steel Wire, it is the most widely used, the largest amount, suitable for the manufacture of smaller cross-section, lower working temperature springs. It has high dimensional accuracy, smooth surface, no oxidation and decarbonization defects, and stable fatigue life.
2. Stainless spring steel wire, applicable to stainless steel spring, according to our custom, spring steel is a special steel, the production of spring steel when the technical requirements are higher.
3. Alloy spring steel wire, it can improve the anti-relaxation performance of spring steel, improve the toughness of steel, and significantly improve the hardenability of steel and the use of temperature, suitable for making larger section, higher temperature use of the spring.
The production process of spring steel wire
Spring steel wire is usually first pickled and phosphated to remove the oxide scale and form phosphating film, and a few are treated by mechanical method. The aim is to meet the requirements of cold drawing process to obtain a smooth surface. For spring steel wire requiring high fatigue life, such as valve spring steel wire, the wire rod should be skinned to reduce surface defects.
The carbon steel spring wire is usually quenched in lead bath to obtain very fine pearlite structure, which is beneficial to improve the deep drawing property and the spring property, it is used only on small diameters.
Generally, alloy steel wire is annealed to make its microstructure adapt to drawing deformation. The heat treatment of stainless steel wire is solid solution treatment, which is also to improve the structure to meet the needs of drawing.
The process of oil quenching is applied to finished steel wire. The steel wire is heated to austenitizing temperature for a period of time by induction heating or gas and oil heating furnace. Although nominally called oil quenching, basically use water quenching or water quenching with polymer materials.
Spring steel wire and related industries
Spring industry is a small industry in the whole manufacturing industry, but its role is absolutely can not be underestimated. In addition, the expansion of the size and variety of spring products and the improvement of the quality level are also the needs of the replacement of mechanical equipment and the need to improve the performance of supporting mainframe, spring products play an important role.
Post time: Nov-15-2023