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A kind of economical deep-drawing cold-rolled enamel steel and production method

An economical, enamel 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-scalding performance.

Active Publication Date: 2019-03-15
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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  • A kind of economical deep-drawing cold-rolled enamel steel and production method
  • A kind of economical deep-drawing cold-rolled enamel steel and production method
  • A kind of economical deep-drawing cold-rolled enamel steel and production method

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Embodiment Construction

[0033] An economical steel for deep-drawing and cold-rolling enamel, 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% to 0.060%, N≤0.0040%.

[0034] Its production method is:

[0035] 1) Pretreatment of molten iron: require front and back slag removal;

[0036] 2) Converter smelting: without adding pig iron and slag steel; using self-circulating scrap steel for tapping, strengthening converter dephosphorization, and strengthening slag blocking operation; adding lime during tapping, without deoxidation;

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

[0038] 4) RH furnace refining: RH adopts a light treatment process, if oxygen blowing is required, oxygen is blown in the early and middle stages according to the temperature and oxygen position; the net cycle time is not less than 6 minutes before breaking;

[0039] 5) The temperature of the slab out of...

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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-high cold tandem 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 fuses inorganic vitreous material on the base steel plate and firmly combines it with the steel plate. 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, but also easy to wash and clean. They can be widely used as eating utensils and washing utensils in daily life, and under certain conditions, enamel coating on the metal body exhibi...

Claims

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Application Information

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Patent Type & Authority Patents(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