A light-weight design aluminum-clad substrate and its production method
A lightweight design and production method technology, applied in the field of low-alloy steel manufacturing, can solve the problems of poor heat dissipation and high composition of wheels, achieve good interface bonding characteristics, solve heat dissipation problems, and reduce material thickness
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Embodiment 1
[0046] According to the steel chemical composition requirements of the present invention, steelmaking is carried out in a 500kg vacuum induction furnace, the obtained chemical composition is shown in Table 1, and cast into a 100kg steel ingot, the heating temperature is 1180°C, the finishing temperature is 860-900°C, and the coiling temperature is 520-620°C ℃.
[0047] The mechanical properties of the steel examples of the present invention are shown in Table 1. Comparing the composition and performance with similar steel types. Wherein comparative example 1 is Chinese patent publication number CN101736194A "a kind of wheel steel and its preparation method and wheel", comparative example 2 is Chinese patent publication number CN101812637A "a kind of high-strength and high-toughness automobile wheel steel and its production method", for Proportion 3 is Chinese Patent Publication No. CN103243262A "A High-strength Hot-Rolled Steel Sheet Coil for Automobile Wheels and Its Manufac...
Embodiment 2
[0052] According to the composition requirements of the present invention, the steel of the present invention is smelted on a 500kg vacuum induction furnace in a laboratory. The chemical composition is shown in Table 1. The billet heating temperature is above 1150-1200°C, the finishing temperature is 860-900°C, the coiling temperature is 520-620°C, and then air-cooled to room temperature. The mechanical properties are shown in Table 2.
[0053] According to the design scope of the steel composition and the rolling process control technology of the present invention, the yield strength of the steel in the example is ≥400MPa, the tensile strength is 500-800MPa, the elongation is above 18%, and it has good interface bonding performance with Al. It can be applied to the manufacture of heat dissipation requirements such as wheels, radiator parts and corrosion resistance requirements.
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