Fatigue-resistant material used for automobile gear
An automotive gear and fatigue-resistant technology, applied in the field of auto parts, can solve the problems of dispersion and density value that cannot be solved at the same time, limit the large-scale development of the steel industry, and the quality stability is not high, so as to achieve high strength and prevent Good effect on oxidation, fatigue resistance and toughness
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[0013] A kind of anti-fatigue material for automobile gear is prepared according to the following steps:
[0014] a. Melting: Add low-sulfur phosphorus clean scrap steel into high-frequency induction melting furnace to melt into molten steel, then add recarburizer, wait for the temperature in the furnace to rise to 1500°C, add pig iron, ferrosilicon and ferromanganese, keep warm for 20 minutes and then add After copper, nickel, titanium and strontium are completely melted, add modified niobium carbide, raise the temperature to 1630°C, keep stirring at constant temperature for 5 minutes to obtain matrix alloy liquid;
[0015] b. Detection: Detect the component content of the matrix alloy liquid, add materials to make the elements by weight percentage: carbon: 0.5%, silicon: 2.1%, manganese: 1.3%, copper: 0.6%, nickel: 1.2%, aluminum : 0.001%, titanium 0.1%, strontium: 0.01%, sulfur ≤ 0.015%, phosphorus ≤ 0.015%, the balance is iron and unavoidable impurities;
[0016] c. Pouri...
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