Introduction
Chromium vanadium alloy spring steel wire is a kind of material for making valve oil quenching and tempering valves, which is a kind of steel wire with high strength, high elasticity and good corrosion resistance in the whole plane spring, and it is widely used in automobile industry and the production of spring valves. In this paper, the specific performance of the oil quenching and tempering valve chromium vanadium alloy spring steel wire produced by YB/T5008-1993 standard is discussed in detail.
The Performance of Chromium Vanadium Alloy Spring Steel Wire
Chromium vanadium alloy spring steel wire produced by YB/T5008-1993 standard is composed of chromium-vanadium-manganese-iron alloy matrix. The spring steel wire has excellent elasticity and tensile strength, so it is suitable for the production of valves. The chromium-vanadium alloy matrix can produce quenching hardened materials by oil quenching and tempering, and its hardness and tensile strength can be improved. It has good fatigue strength, and its working temperature can reach about 200℃.
The chemical composition of chromium vanadium alloy spring steel wire produced by YB/T5008-1993 standard is as follows: Cr 0.6-0.8%, V 0.7-1.1%, Mn 0.4-0.7%, Si 0.2-0.3%, P ≤ 0.025%, S ≤ 0.025%. The mechanical properties of chromium vanadium alloy spring steel wire are 0.2% yield strength ≥ 210-240Mpa, tensile strength ≥ 385-420Mpa, elongation rate ≥ 5%.
Application of Chromium Vanadium Alloy Spring Steel Wire
Chromium-vanadium alloy spring steel wire produced by YB/T5008-1993 standard is widely used in the production of valves used in automobile engines. The valve is composed of two parts: the valve core and the valve body. The valve core is made of chromium-vanadium alloy spring steel wire, which is an important part of the valve. It contains the movable parts of the valve, including the valve stem and the valve spring. The valve body is the main part of the valve, and its main function is to control the opening and closing angle of the valve.
The chromium-vanadium alloy spring steel wire produced by YB/T5008-1993 standard has excellent elasticity and high strength, which is the ideal material for making the valve. After oil quenching and tempering, the chromium-vanadium alloy spring steel wire can reach a hardness of HRC30-40 with high strength and good corrosion resistance. The valve has excellent fatigue resistance, which can greatly improve the service life and working performance of the valve.
Conclusion
In conclusion, the chromium-vanadium alloy spring steel wire produced by YB/T5008-1993 standard has excellent elasticity, high tensile strength, good corrosion resistance and fatigue resistance, which makes it an ideal material for the production of valves used in automobile engines. With its high strength and good corrosion resistance, the valve made of chromium-vanadium alloy spring steel wire will have excellent performance and long service life.
