Hot-dip aluminum-zinc embossed steel plate with yield strength of 280MPa and manufacturing method of hot-dip aluminum-zinc embossed steel plate
A technology of yield strength and manufacturing method, which is applied in the field of cold-rolled hot-dip galvanized steel, can solve problems such as stamping blackening, and achieve the effect of simple manufacturing process
Active Publication Date: 2022-03-29
SHANGHAI MEISHAN IRON & STEEL CO LTD
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Problems solved by technology
[0010] The purpose of this invention is to provide a hot-dip galvanized embossed steel plate with a yield strength of 280MPa and its manufacturing method, which mainly solves the problem of the existing refrigerator backboard with a yield strength of 280MPa. Technical Problems of Stamping Blackening of High-grade Hot-dip Al-Zn Embossed Steel Sheet
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[0048] The present invention will be further described below in conjunction with Examples 1-5, as shown in Tables 1-5.
[0049] Table 1 shows the chemical composition (by weight percentage) of the substrate of the hot-dip galvalume embossed steel sheet according to the embodiment of the present invention, and the balance is Fe and unavoidable impurities.
[0050] Table 1 The chemical composition of the substrate of the hot-dip galvalume embossed steel sheet in the embodiment of the present invention, unit: weight percent
[0051]
[0052] The molten steel with the required chemical composition is obtained through converter smelting, and the molten steel with the required chemical composition is obtained by blowing argon and adding alloy elements, and the molten steel is continuously cast to obtain a continuous casting slab. The thickness of the continuous casting slab is 210-230mm, and the width is 800~1250mm, length 5000~10000mm.
[0053] The cut-to-length slab produced b...
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The invention discloses a hot-dip aluminum-zinc embossed steel plate with yield strength of 280 MPa and a manufacturing method of the hot-dip aluminum-zinc embossed steel plate. The hot-dip aluminum-zinc embossed steel plate mainly solves the technical problem that an existing hot-dip aluminum-zinc embossed steel plate with yield strength of 280 MPa for a refrigerator back plate is blackened during stamping. According to the technical scheme, a base plate of the hot-dip aluminum-zinc embossed steel plate with the yield strength of 280 MPa comprises the following chemical components in percentage by weight: 0.06%-0.08% of C, less than or equal to 0.06% of Si, 0.20%-0.50% of Mn, less than or equal to 0.050% of P, less than or equal to 0.025% of S, 0.010%-0.080% of Alt and the balance of Fe and inevitable impurity elements. The thickness of the fingerprint-resistant film of the hot-dip aluminum-zinc embossed steel plate with the thickness of 0.25-0.40 mm is 1.2-1.8 g / m < 2 >, and the pattern height of the hot-dip aluminum-zinc embossed steel plate is 0.02-0.03 mm. The hot-dip aluminum-zinc embossed steel plate is mainly used for the back plate of the refrigerator.
Description
technical field [0001] The invention relates to a cold-rolled hot-dip galvalume embossed steel plate, in particular to a hot-dip galvanized embossed steel plate with a yield strength of 280MPa and its manufacturing method, specifically, to a thickness of 0.25-0.40mm and a yield strength of 280MPa The invention relates to a hot-dip galvalume embossed steel sheet and a manufacturing method thereof. The hot-dip galvanized embossed steel sheet of the invention is mainly used for refrigerator backboards, and belongs to the technical field of iron-based alloys and cold-rolled continuous hot-dip galvanized steel sheets. Background technique [0002] Due to its excellent corrosion resistance, paintability, processability and economy, hot-dip galvanized steel sheets are widely used in the construction industry, household appliances industry, industrial instrumentation industry, electrical cabinets, packaging industry and other fields. Compared with pure zinc steel plate, its corrosio...
Claims
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Patent Timeline
Login to View More IPC IPC(8): C22C38/02C22C38/04C22C38/06C21D8/02C22C33/04
CPCC22C38/02C22C38/04C22C38/06C22C33/04C21D8/0205C21D8/0226C21D8/0236C21D8/0247C21D8/0278
Inventor 黄海穆海玲尤佳邵远飞
Owner SHANGHAI MEISHAN IRON & STEEL CO LTD