Year1
- 产品规格：
- 齐全
Process performance
Spring is used under impact, vibration or long-term cross stress, so the spring steel is required to have high tensile strength, elastic limit and high fatigue strength. In terms of technology, spring steel is required to have a certain degree of hardenability, be difficult to decarburize, and have good surface quality. Carbon spring steel is a high-quality carbon structural steel with a carbon content in the range of .%-.%. Alloy spring steel is mainly silicon-manganese steel. Their carbon content is slightly lower, and their performance is mainly improved by increasing the silicon content. There are also alloy spring steels of chrome, tungsten, and vanadium. In recent years, combined with Chinese resources and in accordance with the requirements of new technologies in automobile and tractor design, new steel types have been developed based on silicon-manganese steel with boron, niobium, molybdenum and other elements added to extend the service life of springs and improve spring quality.
Performance requirements
Springs are used under impact, vibration or long-term cross stress, so spring steel is required to have high tensile strength, elastic limit, and high fatigue strength. In terms of technology, spring steel is required to have a certain degree of hardenability, be difficult to decarburize, and have good surface quality. Carbon spring steel is a high-quality carbon structural steel with a carbon content in the range of .%-.%. Alloy spring steel is mainly silicon-manganese steel. Their carbon content is slightly lower, and their performance is mainly improved by increasing the silicon content. There are also alloy spring steels of chrome, tungsten, and vanadium. In recent years, combined with Chinese resources and in accordance with the requirements of new technologies in automobile and tractor design, new steel types have been developed based on silicon-manganese steel with boron, niobium, molybdenum and other elements added to extend the service life of springs and improve spring quality.
Definition
Spring steel refers to steel specifically used for the manufacture of springs and elastic elements due to its elasticity in the quenched and tempered state. The elasticity of steel depends on its ability to elastically deform, that is, its ability to elastically deform within a specified range so that it can withstand a certain load without permanent deformation after the load is removed. Spring steel should have excellent comprehensive properties such as mechanical properties (especially elastic limit, strength limit, yield-to-strength ratio), anti-elasticity loss performance (i.e. anti-elasticity loss performance, also known as anti-relaxation performance), fatigue properties, hardenability, physical Chemical properties (heat resistance, low temperature resistance, oxidation resistance, corrosion resistance, etc.). In order to meet the above performance requirements, spring steel has excellent metallurgical quality (high purity and uniformity), good surface quality (strict control of surface defects and decarburization), precise shape and size.
According to the "Steel Classification" standard based on basic performance and usage characteristics, spring steel belongs to steel for mechanical structures. According to the quality grade, it belongs to special quality steel, that is, steel that requires particularly strict quality and performance control during the production process. According to Chinese custom, spring steel is a special steel. When making spring steel, the technical requirements are relatively high. Excellent technology directly determines the quality.
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