Method for producing checkered steel plate by applying CSP (Cast Steel Plate) process

A patterned steel plate and process technology, which is applied in the field of thin slab continuous casting and rolling production, can solve the problems of plate delamination, long production cycle, and cracking, and achieve accurate plate thickness accuracy, good surface quality, and good formability. Effect

Active Publication Date: 2011-11-16
MAANSHAN IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The traditional patterned steel production method is easy to cause bubbles, scars, cracks, folds and inclusions on the surface of the patterned steel plate, and the steel plate has layers, and the production cycle is long, the yield is not high, and the uniformity and stability of product performance need to be improved.

Method used

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  • Method for producing checkered steel plate by applying CSP (Cast Steel Plate) process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A method of applying CSP technology to produce checkered steel plates, comprising the following steps:

[0016] 1) Rolling temperature system: soaking temperature 1130°C, final rolling temperature 880°C, coiling temperature 600°C;

[0017] 2), Hot rolling reduction distribution system: F1 reduction rate 45%, F2 reduction rate 55%, F3 reduction rate 40%, F4 reduction rate 35%, F5 reduction rate 30%, F6 reduction rate 18% %, F7 reduction rate 18%;

[0018] 3) Roll matching system: F1-F6 is rolled and matched according to normal rolling, and the roll shape adopts CVC roll shape; the lower roll of F7 adopts flat roll, and the upper roll adopts grooved roll, and the roll diameter of the upper roll is 0.6 larger than that of the lower roll mm, the groove depth of the grooved roller is 4.1mm; the length of the grooved roller body is 1800mm.

[0019] 4.) Cooling after rolling: adopt laminar flow post-cooling mode.

[0020] The chemical composition (mass percentage) of the pa...

Embodiment 2

[0023] A method of applying CSP technology to produce checkered steel plates, comprising the following steps:

[0024] 1) Rolling temperature system: soaking temperature 1160°C, final rolling temperature 900°C, coiling temperature 670°C;

[0025] 2), Hot rolling reduction distribution system: F1 reduction rate 40%, F2 reduction rate 50%, F3 reduction rate 40%, F4 reduction rate 35%, F5 reduction rate 30%, F6 reduction rate 20% %, F7 reduction rate 23%;

[0026] 3) Roll matching system: F1-F6 rolls are matched according to normal rolling, and the roll shape adopts CVC roll shape; the lower roll of F7 adopts flat roll, and the upper roll adopts grooved roll, and the roll diameter of the upper roll is 1.0 larger than that of the lower roll mm, the groove depth of the grooved roller is 4.3mm; the grooved roller body has a grooved length of 1800mm.

[0027] 4.) Cooling after rolling: adopt laminar flow post-cooling mode.

[0028] The chemical composition (mass percentage) of the...

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Abstract

The invention discloses a method for producing a checkered steel plate by applying a CSP (Cast Steel Plate) process. In the method, a rotating furnace for smelting, an LF (Low-Frequency) refining furnace and CSP continuous casting and rolling equipment are applied, and a controlled rolling and controlled cooling process is adopted. The checkered steel plate produced by applying the CSP process has the advantages of high strength, good forming property and accurate thickness precision, convexity, straightness and width of plate; and in addition, the product of the checkered steel plate has more uniform and stable property and higher longitudinal and horizontal precision.

Description

technical field [0001] The invention belongs to the field of continuous casting and rolling of thin slabs, and in particular relates to a production method of patterned steel plates. Background technique [0002] The traditional checkered steel production method is likely to cause bubbles, scars, cracks, folds and inclusions on the surface of the checkered steel plate, layered steel plates, and the production cycle is long, the yield is not high, and the uniformity and stability of product performance need to be improved. Contents of the invention [0003] Aiming at the deficiencies of the prior art, the technical problem to be solved by the present invention is to provide a method for producing checkered steel plate by CSP process, which has good shape and high production efficiency. [0004] In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is: [0005] A method of applying CSP technology to produ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B1/46B21B37/74B21B37/58B21H8/02
Inventor 王小燕赵海山栾硕朱涛谭凌王莹饶添荣
Owner MAANSHAN IRON & STEEL CO LTD
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