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Steel sheet for enamelling, and a production method therefor

A manufacturing method and technology for steel plates, applied in the field of enamel steel plates, can solve the problems of dissolution loss of refractory materials, high oxygen content, low productivity, etc., and achieve the effects of preventing scale explosion, improving formability, and preventing surface defects

Active Publication Date: 2011-07-13
浦项股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the high oxygen content in the steel, the refractory material will be dissolved and lost during continuous casting, so the productivity of continuous casting is very low

Method used

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  • Steel sheet for enamelling, and a production method therefor

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Experimental program
Comparison scheme
Effect test

Embodiment

[0057] Steel ingots having the composition shown in Table 1 were produced.

[0058] [Table 1]

[0059] distinguish

C

mn

P

S

Al

N

Ti

L

F

Invention Steel 1

0.0013

0.32

0.011

0.055

0.035

0.0021

0.078

4.01

1.96

Invention Steel 2

0.0016

0.46

0.009

0.049

0.032

0.0025

0.087

6.16

2.36

Invention Steel 3

0.0021

0.58

0.012

0.055

0.04

0.0018

0.059

6.36

0.22

Invention Steel 4

0.0012

0.29

0.015

0.071

0.042

0.0017

0.092

3.02

2.65

Compare Steel 1

0.0019

0.11

0.015

0.075

0.053

0.0024

0.054

1.15

-1.14

Compare Steel 2

0.0028

0.42

0.009

0.093

0.043

0.0018

0.045

2.69

-2.42

Compare Steel 3

0.0018

0.45

0.012

0.032

...

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Abstract

The present invention provides a steel sheet for enamelling which comprises, on a percent by weight basis, more than 0 and less than 0.005% carbon, 0.2-1.0% manganese, 0.04-0.08% sulphur, 0.005-0.02% phosphorus, 0.01-0.1% aluminium, 0.06-0.1% titanium and more than 0 and less than 0.003% nitrogen, and a balance of iron and unavoidable impurities, and in which there is a titanium sulphide or (titanium / manganese) sulphide precipitate having a size of 0.01-0.4 mm in an amount of at least 3*108 particles per cm2.

Description

technical field [0001] The invention relates to an enamelled steel plate. More specifically, it relates to an enamelled steel sheet that does not generate surface defects and has excellent formability, and a method for manufacturing the same. Background technique [0002] Enamel steel plates are used in household appliances, chemical equipment, kitchen utensils, sanitary ware and building decoration materials, etc. [0003] There are hot-rolled steel sheets and cold-rolled steel sheets for enamelled steel sheets, but hot-rolled steel sheets are mainly used in consideration of high performance and high workability. Examples of enamelled steel sheets include rimmed steel, OCA steel (open coil aluminum), titanium-containing steel, high-oxygen steel, and the like. Among them, high-oxygen steel is steel containing a large amount of oxygen in boiling steel. If the oxygen content in steel is high like high-oxygen steel, fishscale, which is one of the defects of enamelled steel s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/00
CPCC22C38/004
Inventor 尹正凤曹恒植朴秀范金祐成
Owner 浦项股份有限公司
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