Cold rolling process for 304 stainless steel 2B base material for decorative panel

A 304 stainless steel, decorative panel technology, used in abrasives, rolls, metal rolling, etc., can solve the problems of high production cost, low processing efficiency, complex production process, etc., achieve less defect coverage, improve processing efficiency, and rough surface. low degree of effect

Active Publication Date: 2017-06-09
GANSU JIU STEEL GRP HONGXING IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The invention discloses a cold-rolling process of a 304 stainless steel 2B base material for a decorative panel to solve the complex production process of the 304 stainless steel BA plate in the prior art, the high production cost, and the existence of a large number of pockmarks after deep processing of the 304 stainless steel 2B plate Problems with orange peel defects, low processing efficiency, and high production costs

Method used

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  • Cold rolling process for 304 stainless steel 2B base material for decorative panel
  • Cold rolling process for 304 stainless steel 2B base material for decorative panel
  • Cold rolling process for 304 stainless steel 2B base material for decorative panel

Examples

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Embodiment 1

[0027] A kind of cold-rolling process of 304 stainless steel 2B base material for decorative panel, specifically comprises the following steps:

[0028] a. Solution treatment: continuous annealing is carried out on the hot-rolled black coil, and the annealing temperature is 1080°C to obtain a solid solution stainless steel coil;

[0029] b. On-line pickling: adopt the continuous pickling process of scale breaking-shot blasting-sulfuric acid pre-pickling-mixed acid pickling to pickle the solid solution stainless steel in step a to obtain hot-rolled annealed and pickled stainless steel, broken The elongation rate of the scale machine is 1.5%. The shot blasting machine uses cast shot with a particle size of 400 μm and steel wire cut shot with a particle size of 800 μm. The mixing ratio of cast shot and steel cut shot used in the shot blasting machine is 2: 1. The throwing speed is 40m / s, and the pellet flow rate is 10kg / m 2 , the concentration of sulfuric acid in the sulfuric ac...

Embodiment 2

[0038] A kind of cold-rolling process of 304 stainless steel 2B base material for decorative panel, specifically comprises the following steps:

[0039] a. Solution treatment: continuous annealing is carried out on the hot-rolled black coil, and the annealing temperature is 1090°C to obtain a solid solution stainless steel coil;

[0040] b. On-line pickling: adopt the continuous pickling process of scale breaking-shot blasting-sulfuric acid pre-pickling-mixed acid pickling to pickle the solid solution stainless steel in step a to obtain hot-rolled annealed and pickled stainless steel, broken The elongation rate of the scale machine is 1.5%. The cast shot with a particle size of 400 μm and the steel cut shot with a particle size of 800 μm used in the shot blasting machine are mixed. The mixing ratio of the cast shot and steel cut shot used in the shot blasting machine is 1: 1. The throwing speed is 60m / s, and the shot flow rate is 11kg / m 2 , the concentration of sulfuric acid ...

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Abstract

The invention discloses a cold rolling process for a 304 stainless steel 2B base material for a decorative panel. The cold rolling process specifically comprises the following steps of: solution treatment, online pickling, pickling, coping, cold rolling, cold rolling and annealing, pickling after cold rolling and annealing, leveling, shearing and packaging by means of a transverse shear. The cold rolling process disclosed by the invention has the advantages that by combining optimization of a cold rolling step in three aspects, the surface roughness of the final 2B base material is low, the fault coverage is extremely small, the surface of strip steel is uniform and smooth, and the 304 stainless 2B which is excellent in grinding and polishing properties can directly replace a 304 stainless BA plate to be used as the base material of the decorative panel which is relatively high in surface requirement. The production process is simpler than a step of the 304 stainless steel BA plate, so that the production cost is lowered, and the processing efficiency is increased.

Description

technical field [0001] The invention belongs to the technical field of stainless steel smelting, and in particular relates to a cold rolling process of 304 stainless steel 2B base material for decorative panels. Background technique [0002] Austenitic stainless steel 304 has the advantages of high plasticity, corrosion resistance, good welding performance, low temperature toughness and easy processing, making it widely used in chemical, food, daily furniture decoration, architectural decoration and other fields; currently such as Most of the 304 stainless steel base materials for high-end elevator panels are processed with BA boards, but the production process of BA boards is complicated, requiring a special bright annealing furnace, and the production cost is relatively high. 304 stainless steel 2B boards produced by ordinary processes are used as materials, and deep processing is required It can be used after grinding, but after grinding and polishing, it is found that th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B1/22B21B37/58B24B21/00B24C1/08B24C11/00C21D1/26C21D8/02C23G1/08C25F1/06
CPCB21B1/22B21B37/58B21B2001/221B21B2201/02B21B2267/10B24B21/008B24C1/086B24C11/00C21D1/26C21D8/0236C21D8/0273C23G1/086C25F1/06
Inventor 喻大刚赵得江惠凯李具仓李玉峰
Owner GANSU JIU STEEL GRP HONGXING IRON & STEEL CO LTD
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