A kind of high-strength plasticity, high-platability fine-grain hot-dip galvanized dual-phase steel and production method thereof
A high-strength plastic product and production method technology, applied in hot-dip plating process, coating, metal material coating process, etc., can solve the problems of selective oxidation of alloy elements and poor performance, so as to reduce selective oxidation and cost , Improve the effect of plating
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Embodiment 1
[0023] The high-strength plastic product of this embodiment, high-platability fine-grained hot-dip galvanized DP steel, its chemical composition is: C is 0.11wt.%, Mn is 2.1wt.%, Si is <0.005wt.%, Al is 0.35 wt.%, P is 0.06wt.%, Ni is 0.02wt.%, Nb is 0.04wt.%, S is ≤0.005wt.%, and the balance is Fe
[0024] The production method of the high-strength plastic product of the present embodiment, high-platability fine-grain hot-dip galvanized DP steel is carried out according to the following steps:
[0025] (1) According to the mass percentage: C 0.11%, Mn 2.1%, Si<0.005%, Al 0.35%, P 0.06%, Ni0.02%, Nb 0.04%, S<0.005%, the balance is the set composition of Fe To smelt molten steel, cast a 65Kg billet in a vacuum induction furnace, cut the head and tail of the billet and heat it to 1230°C for 2 hours, forge a rectangular billet with a cross-section of 80mm×80mm at this temperature, and then process it into a 80mm billet with a sawing machine A rectangular billet of ×80mm×100mm is...
Embodiment 2
[0029] The high-strength plastic product of this embodiment, high-platability fine-grain hot-dip galvanized DP steel, its chemical composition is: C is 0.09wt.%, Mn is 2.0wt.%, Si is <0.005wt.%, Al is 0.33 wt.%, P is 0.07wt.%, Ni is 0.03wt.%, Nb is 0.05wt.%, S is ≤0.005wt.%, and the balance is Fe
[0030] The production method of the high-strength plastic product of the present embodiment, high-platability fine-grain hot-dip galvanized DP steel is carried out according to the following steps:
[0031](1) According to the mass percentage: C 0.09%, Mn 2.0%, Si<0.005%, Al 0.33%, P 0.07%, Ni0.03%, Nb 0.05%, S<0.005%, the balance is the set composition of Fe To smelt molten steel, cast a 65Kg billet in a vacuum induction furnace, heat the billet to 1250°C for 2.5 hours, and forge a rectangular billet with a cross-section of 66mm×66mm at this temperature, and then process it with a sawing machine A rectangular billet of 66mm×66mm×80mm is used for hot rolling. In the first stage, h...
Embodiment 3
[0035] The high-strength plastic product of this embodiment, high-platability fine-grain hot-dip galvanized DP steel, its chemical composition is: C is 0.12wt.%, Mn is 2.3wt.%, Si is <0.005wt.%, Al is 0.37 wt.%, P is 0.06wt.%, Ni is 0.02wt.%, Nb is 0.04wt.%, S is ≤0.005wt.%, and the balance is Fe
[0036] The production method of the high-strength plastic product of the present embodiment, high-platability fine-grain hot-dip galvanized DP steel is carried out according to the following steps:
[0037] (1) According to the mass percentage: C 0.12%, Mn 2.3%, Si<0.005%, Al 0.37%, P 0.06%, Ni0.02%, Nb 0.04%, S<0.005%, the balance is the set composition of Fe To smelt molten steel, cast a 65Kg billet in a vacuum induction furnace, cut the head and tail of the billet and heat it to 1270°C for 2.3 hours, forge a rectangular billet with a cross-section of 60mm×60mm at this temperature, and then process it with a sawing machine. A rectangular billet of 60mm×60mm×80mm is used for hot r...
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