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Economical deep drawing cold rolling enamel steel and production method

A production method and an economical technology, applied in the field of metal materials, can solve problems such as increasing costs, and achieve the effects of saving production costs, good adhesion performance, and good anti-scaling performance

Active Publication Date: 2017-11-07
MAANSHAN IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But the addition of alloy components will increase the cost of production

Method used

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  • Economical deep drawing cold rolling enamel steel and production method
  • Economical deep drawing cold rolling enamel steel and production method
  • Economical deep drawing cold rolling enamel steel and production method

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Embodiment Construction

[0033] An economical deep-drawing cold-rolled enamel steel, including the following chemical elements and weight percentages: C: 0.005~0.015%, Si≤0.030%, Mn: 0.15%~0.25%, P≤0.020%, S: 0.010~0.020 %, Al: 0.030%~0.060%, N≤0.0040%.

[0034] The production method is:

[0035] 1) Hot metal pretreatment: requires front and rear slagging;

[0036] 2) Converter smelting: no pig iron and slag steel are added; self-circulating scrap steel tapping is used to strengthen converter dephosphorization and slag blocking operations; lime is added during tapping without deoxidation;

[0037] 3) Alloy fine-tuning station: carry out ladle top slag modification;

[0038] 4) RH furnace refining: RH adopts a light treatment process. If oxygen is required to be blown, oxygen is blown in the early and mid-term according to the temperature and oxygen level; ensure that the net cycle time is not less than 6min before breaking the world;

[0039] 5) The temperature of casting slab is controlled at 1180℃~1200℃;

[00...

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Abstract

The invention discloses economical deep drawing cold rolling enamel steel and a production method. The economical deep drawing cold rolling enamel steel comprises the following chemical elements in percentage by weight: 0.005%-0.015% of C, equal to or less than 0.030% of Si, 0.15%-0.25% of Mn, equal to or less than 0.020% of P, 0.010%-0.020% of S, 0.030%-0.060% of Al and equal to or less than 0.0040% of N. The production method comprises the following steps: hot metal pretreatment, smelting in a converter, alloy fine adjustment station, refining in an RH furnace, hot rolling, acid pickling, cold rolling, continuous annealing and leveling. The economical deep drawing cold rolling enamel steel is produced through the working procedures of hot rolling, acid pickling, five-rack full six-roller cold continuous rolling and continuous annealing and leveling, wherein the yield strength is 160-190 MPa, the tensile strength is higher than 300 MPa, the A50 elongation is greater than 45%, n is greater than 0.2 and r is greater than 1.8.

Description

Technical field [0001] The invention belongs to the field of metal materials, and relates to steelmaking, hot rolling, pickling, five-stand full six-roll cold rolling and continuous annealing processes of metal plates (strips), in particular to an economical deep-drawing cold-rolled enamel Steel and production methods. Background technique [0002] Enamel steel plate refers to a new type of composite material that combines inorganic glass material on the base steel plate through fusion and solidification with the steel plate. The enamel coating on the surface of the steel plate can prevent the steel plate from rusting, so that the steel plate will not form an oxide layer on the surface when it is heated and can resist the erosion of various liquids. Enamel products are not only safe and non-toxic, easy to wash and clean, and can be widely used as eating utensils and washing utensils used in daily life, and under certain conditions, the enamel enamel on the metal body exhibits hi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/02C22C38/04C22C38/06C21D8/02C21D1/26C23D5/00
CPCC21D1/26C21D8/0226C21D8/0236C21D8/0273C22C38/001C22C38/004C22C38/02C22C38/04C22C38/06C23D5/00
Inventor 王占业张宜赵云龙汪建威汤亨强李进贾幼庆吴浩唐东东
Owner MAANSHAN IRON & STEEL CO LTD
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