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A manufacturing method and technology of stainless steel, applied in the field of metal products, can solve the problems of fluctuating cost and selling price of stainless steel, high nickel price, etc., and achieve the improvement of plastic index elongation and section shrinkage rate, good oxidation resistance, and anti-intergranularity. The effect of corrosion
Inactive Publication Date: 2013-12-18
ZHANGJIAGANG SHENGDA STEEL ROPE
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[0002] At present, Ni-Cr austenitic stainless steel is widely used at home and abroad to manufacture standard parts, such as MLOCr18Ni12, MLOCr18Ni9 and other grades; according to information, about 60% of the world's nickel production is
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Embodiment 1
[0047] Manufacture of chrome-manganese-nickel-copper-aluminum stainless steel. Its chemical composition is (% weight ratio): Cr14.0~17.0, Mn7.0~11.0, Ni1.5~5.5, Cu1.50~3.50, Al1.0~4.0, C≤0.06, N≤0.12, Si ≤1.00, P≤0.035, S≤0.015, the balance is Fe and unavoidable impurities.
[0051] Clean scrap steel + Cr and Ni scrap metal + scrap copper + lime and other slagging materials; (high carbon ferrochromium and high carbon nickel ferro, etc. can also be used);
[0052] 2) Electric arc furnace steelmaking
[0053] Put the ingredients into the electric arc furnace one by one, turn on the electricity to heat and melt, test C, Si, Mn, P, S, Cr, Ni, Cu, adjust various chemical components according to the test results, a...
Embodiment 2
[0065] Manufacture of chrome-manganese-nickel-copper-aluminum stainless steel. Its chemical composition is (% weight ratio): Cr15.0~16.0, Mn7.5~10.0, Ni3.0~4.0, Cu2.0~3.00, Al1.0~2.0, C≤0.05, N≤0.10, Si ≤1.00, P≤0.035, S≤0.015, the balance is Fe and unavoidable impurities.
[0066] Technological process: same example 1.
Embodiment 3
[0067] Example 3: Manufacture of chromium-manganese-nickel-copper-aluminum stainless steel. Its chemical composition is (% weight ratio): Cr14.0~15.0, Mn8.0~9.5, Ni2.0~3.0, Cu1.0~2.0, Al2.0~3.0, C≤0.04, N≤0.10, Si ≤1.00, P≤0.035, S≤0.015, the balance is Fe and unavoidable impurities.
[0068] Technological process: same example 1.
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Abstract
The invention relates to a manufacturing method of a stainless steel wire. The manufacturing method comprises the following steps: 1, peeling a surface layer with the depth of 0.1-0.15mm from the stainless steel wire by using a rotary cutting or scraping method, manufacturing the peeled stainless steel wire into a wire of 5.5-10mm; 2, annealing the wire at a temperature of 800-900 DEG C; 3, carrying out coating treatment on the surface of the wire of 5.5-10mm by adopting a coating agent, then drying in a drying furnace at a furnace temperature of 100-150 DEG C for 0.5-1.0h; 4, drawing on a multi-head continuous drawing machine, wherein a large reduction rate of 25-30 percent is adopted in the first head, then the reduction rate is successively reduced, the wire is taken up after being coarsely drawn 6-7 times or medially drawn 7-8 times, if the wire in a delivery sate is a lightly-drawn steel wire, the reduction rate being 10 percent is reserved when the wire is finished, and then the wire is lightly drawn until reaching the specification and size of a finished product; if the wire in the delivery state is a flexible steel wire, the wire is directly drawn until reaching the specification and the size of the finished product.
Description
technical field [0001] The invention relates to a stainless steel wire rod and a manufacturing method thereof, belonging to the technical field of metal products. Background technique [0002] At present, Ni-Cr austenitic stainless steel is widely used at home and abroad to manufacture standard parts, such as MLOCr18Ni12, MLOCr18Ni9 and other grades; according to information, about 60% of the world's nickel production is used to produce stainless steel, and nickel is relatively scarce and expensive Metals are strategic materials, and the cost and selling price of stainless steel often fluctuate with the rise and fall of nickel prices. Prices also soared. Therefore, in recent years, metallurgical experts at home and abroad have continuously researched and developed a series of new grades of Ni-saving austenitic stainless steel. Contents of the invention [0003] The purpose of the present invention is to replace part of Cr metal with Al, increase Mn and reduce Ni while ad...
Claims
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Application Information
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