Production method of novel nitrogenous commercial vehicle cylinder body material
A production method and technology for commercial vehicles, applied in the field of commercial vehicles, can solve the problems of low tensile strength, low processing efficiency, and high production costs, and achieve the effect of improving performance and increasing production costs
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[0038] Example 1
[0039] A method for producing a novel nitrogen-containing commercial vehicle cylinder block material, comprising the following steps:
[0040] First, clarify the standard requirements for commercial vehicle cylinder block materials. Take our company's 36D diesel engine block as an example, its part number: 1002014-36D; user: FAW Wuxi Diesel Engine Co., Ltd., material standard grade HT250, material strength standard: 250MPa; hardness: HBW180~250.
[0041] Pig iron, scrap steel, and return material are put into the intermediate frequency furnace for melting, and the input ratio is 1:4:5. After melting, the following components are adjusted (wt%): C: 3.20 ± 0.05; Si: 1.95 ± 0.05; Mn: 0.3-0.4 ;P
[0042] <0.03; S: 0.10±0.02; Cr: 0.22±0.02; Cu: 0.60±0.05. Among them, silicon carbide alloy is added to adjust the composition of silicon, and the part with insufficient carbon element is adjusted by using a carburizing agent. The adjustment of the above components is
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