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Economical aging-resistance household appliance colorful-coated substrate and production method thereof

A production method and aging-resistant technology, applied in coating, metal material coating process, hot-dip plating process, etc., can solve the problems of low strength and hardness of steel base, high cost, achieve good stamping performance, reduce cracking, The effect of improving the yield of color plates

Inactive Publication Date: 2019-06-07
SD STEEL RIZHAO CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this invention uses IF steel (interstitial-free steel), also known as interstitial-free steel, as the base plate to produce home appliance color plates, the cost is high, and the strength and hardness of the steel base will be low

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] An economical aging-resistant home appliance color-coated substrate and its production method. The thickness specification of the color-coated substrate for home appliances is 0.8mm, and its chemical composition (wt%) is C: 0.001, Si: 0.020, Mn: 0.10, P: 0.015, S: 0.012, Als: 0.020, N: 0.004, and the rest are Fe and unavoidable impurities.

[0031] An economical age-resistant home appliance color-coated substrate and a production method thereof include the following steps:

[0032] D1. Firstly, desulfurization of molten iron, converter smelting, and RH vacuum treatment;

[0033] D2. Then the molten steel is continuously cast into a billet, and the billet is inspected and cleaned before entering the next process;

[0034] D3. The continuous casting slab is hot-rolled into a steel strip, and after laminar cooling and coiling, the hot-rolled steel strip is pickled by an acid-rolling unit;

[0035]D4, followed by 5 passes of cold rolling to obtain strip steel, with a cold...

Embodiment 2

[0043] An economical aging-resistant home appliance color-coated substrate and its production method, the thickness specification of the color-coated substrate for home appliances is 0.7mm, and its chemical composition (wt%) is C: 0.010, Si: 0.018, Mn: 0.11, P: 0.012 , S: 0.010, Als: 0.030, N: 0.003, and the rest are Fe and unavoidable impurities.

[0044] An economical age-resistant home appliance color-coated substrate and a production method thereof include the following steps:

[0045] D1. Firstly, desulfurization of molten iron, converter smelting, and RH vacuum treatment;

[0046] D2. Then the molten steel is continuously cast into a billet, and the billet is inspected and cleaned before entering the next process;

[0047] D3. The continuous casting slab is hot-rolled into a steel strip, and after laminar cooling and coiling, the hot-rolled steel strip is pickled by an acid-rolling unit;

[0048] D4, followed by 5 passes of cold rolling to obtain a steel strip with a c...

Embodiment 3

[0056] An economical aging-resistant home appliance color-coated substrate and its production method, the thickness specification of the color-coated substrate for home appliances is 0.5 mm, and its chemical composition (wt%) is C: 0.0120, Si: 0.025, Mn: 0.12, P: 0.010 , S: 0.009, Als: 0.040, N: 0.004, and the rest are Fe and unavoidable impurities.

[0057] An economical age-resistant home appliance color-coated substrate and a production method thereof include the following steps:

[0058] D1. Firstly, desulfurization of molten iron, converter smelting, and RH vacuum treatment;

[0059] D2. Then the molten steel is continuously cast into a billet, and the billet is inspected and cleaned before entering the next process;

[0060] D3. The continuous casting slab is hot-rolled into a steel strip, and after laminar cooling and coiling, the hot-rolled steel strip is pickled by an acid-rolling unit;

[0061] D4, followed by 5 passes of cold-rolling to obtain strip steel with a c...

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Abstract

The invention relates to an economical aging-resistance household appliance colorful-coated substrate. The substrate comprises the following chemical components in percentage by mass: 0.001-0.0160 ofC, Si not more than 0.025, 0.10-0.16 of Mn, P not more than 0.015, S not more than 0.012, 0.020-0.050 of Als, N not more than 0.004, and the balance of Fe and inevitable impurities. A production method of the substrate comprises the procedures of desulfurization of molten iron, converter smelting, RH vacuum treatment, continuous casting, inspection and cleaning of plate blanks, heating of the plate blanks, hot continuous rolling, laminar cooling, winding, acid washing, cold rolling, hot galvanization, polishing, finishing, oil coating and packing. The substrate can meet the strength and the hardness needed by household appliance plates, solves the aging, achieves excellent punching performances, facilitates production of deep-punched and deformation-complicated household appliance parts byusers, reduces such defects as cracking during punching, line slippage or edge formation on bent surfaces, and improves the yield of colored plates.

Description

technical field [0001] The invention belongs to the technical field of color-coated substrates, and in particular relates to an economical color-coated substrate for aging-resistant household appliances and a production method thereof. Background technique [0002] With the increasingly strong requirements for energy saving and emission reduction at home and abroad, color-coated sheets for home appliances are more and more widely used in the home appliance industry. By 2010, almost all home appliance companies used color-coated panels to varying degrees. Color-coated steel sheets for home appliances are an important direction for the development of coated steel sheets in the future. The baking and curing process of home appliance color board in color coating production is an artificial aging process. Moreover, after the home appliance color board is placed in the subsequent circulation for a period of time (such as 3 to 6 months), the artificial aging plus natural aging wi...

Claims

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Application Information

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IPC IPC(8): C22C38/06C22C38/04C22C38/02C22C33/04C21D8/02C21D1/26C23C2/06C23F17/00
Inventor 胡华东李洪翠侯晓英张磊王乐雷凯陈晓潇曹同友
Owner SD STEEL RIZHAO CO LTD
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