High-strength steel plate used for glass lining, and manufacturing method thereof

A technology of high-strength steel plate and manufacturing method, which is applied in the direction of manufacturing tools, furnace types, furnaces, etc., can solve problems such as damage to the corrosion resistance and insulation of glass-lined equipment, achieve good scale resistance, improve strength, and meet resistance The effect of pressure requirements

Inactive Publication Date: 2012-11-07
BAOSHAN IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Pinhole defects are caused by bubbles generated at the interface between the steel plate and the porcelain layer during the firing process, which also damages the corrosion resistance and insulation of glass-lined equipment

Method used

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  • High-strength steel plate used for glass lining, and manufacturing method thereof
  • High-strength steel plate used for glass lining, and manufacturing method thereof
  • High-strength steel plate used for glass lining, and manufacturing method thereof

Examples

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Embodiment Construction

[0041] The technical solutions of the present invention will be further described in detail according to Examples A-H.

[0042] The high-strength steel sheet for glass lining of the present invention is manufactured according to the following steps (the chemical composition ratio of each steel strip in Examples A-H is shown in Table 1, and the detailed process parameters of the high-strength steel sheet for glass lining in Examples A-H are shown in Table 2):

[0043] (1) The molten steel is subjected to converter blowing and vacuum degassing treatment;

[0044] (2) Continuous casting or die casting, the die-cast steel ingots need to be rolled into billets;

[0045] (3) After heating the steel billet or cast slab at 1100~1250℃, carry out multi-pass rolling in the austenite recrystallization zone, the total reduction ratio is ≥50%, and the final rolling temperature is controlled to 800~920℃. For the thickness 2~18mm steel plates are rolled by hot continuous rolling mills, and for steel ...

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Abstract

The invention discloses a high-strength steel plate used for glass lining, comprising the following chemical components by weight: 0.06-0.15% of C, 0.15-0.50% of Si, 0.5-1.5% of Mn, less than or equal to 0.02% of P, 0.008-0.035% of S, 0.001-0.05% of Al, 0.003-0.015% of N, 0.001-0.035% of O, 0.001-0.05% of Ti, less than or equal to 0.10% of Cu, less than or equal to 0.10% of Cr, less than or equal to 0.10% of Ni, less than or equal to 0.10% of Mo, and the balance of Fe and other unavoidable impurities, wherein the product of Ti and N is less than or equal to 0.003%. Correspondingly, the invention further discloses a manufacturing method of the high-strength steel plate used for glass lining. The high-strength steel plate used for glass lining has the comprehensive mechanical properties of high strength, good plasticity, good scaling resistance, good sealing property and good welding property, and on the like.

Description

Technical field [0001] The invention relates to a steel grade and a manufacturing method thereof, in particular to a glass-lined steel plate and a manufacturing method thereof. Background technique [0002] At present, glass-lined high-strength steel sheets are mainly used in the fields of chemical industry, petroleum, medicine, pesticides, food and water environment, and their main use is as the substrate of glass-lined equipment in these fields. [0003] The glass lining process is to first coat the glassy enamel containing high silica content on the surface of the steel substrate, and then after high temperature sintering, the enamel adheres firmly to the surface of the steel substrate to become a composite product. The composite product is Glass-lined products. Glass-lined equipment has the dual advantages of glass stability and metal strength and toughness. It has good wear resistance, and has good corrosion resistance to various acidic solutions and organic solvents. It also...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/50
CPCC22C38/50C21D9/46C21D2211/002C21D2211/005C21D2211/009C22C38/001C22C38/002C22C38/02C22C38/04C22C38/06C22C38/42C22C38/44
Inventor 孙全社
Owner BAOSHAN IRON & STEEL CO LTD
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