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Aging-resistant tinplated substrate and manufacturing method thereof

A technology of a tin-plated substrate and a manufacturing method, which is applied to the field of aging-resistant tin-plated substrate and its manufacturing, and can solve the problems of low aging-resistance performance and poor surface quality, etc.

Inactive Publication Date: 2018-04-27
SHANGHAI MEISHAN IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide an aging-resistant tin-plated substrate and its manufacturing method to solve the technical problems of low aging resistance, plate shape and surface quality of the tin-plated substrate with a hardness value of 57±3HR30Tm in the prior art

Method used

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  • Aging-resistant tinplated substrate and manufacturing method thereof
  • Aging-resistant tinplated substrate and manufacturing method thereof
  • Aging-resistant tinplated substrate and manufacturing method thereof

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Embodiment Construction

[0045] The present invention will be further described below in conjunction with Embodiments 1-3.

[0046] Table 1 is the chemical composition (by weight percentage) of the steel of the embodiment of the present invention, and the balance is iron and unavoidable impurities.

[0047] Table 1 Chemical composition of the steel of the embodiment of the present invention, unit: weight percent.

[0048] element

C

Si

mn

P

S

Alt

N

Ti

this invention

≤0.005

≤0.04

0.3-0.5

0.05-0.08

≤0.02

0.01-0.06

≤0.005

0.04-0.08

Example 1

0.0026

0.025

0.42

0.074

0.01

0.03

0.0035

0.046

Example 2

0.0015

0.028

0.33

0.066

0.012

0.035

0.0042

0.06

Example 3

0.004

0.03

0.45

0.053

0.016

0.053

0.0025

0.055

[0049] The molten steel with the required chemical composition is obtained through converter smelting, and the molten steel is vacuum degassed...

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Abstract

The invention relates to an aging-resistant tinplated substrate and a manufacturing method thereof. The technical problems that in the prior art, tinplated substrates with the hardness value being 57+ / -3HR30Tm are low in aging resistance and poor in plate shape and surface quality are solved. The aging-resistant tinplated substrate contains 0-0.005% of C, 0-0.04% of Si, 0.3%-0.5% of Mn, 0.05%-0.08% of P, 0-0.02% of S, 0.01%-0.06% of Alt, 0-0.005% of N, 0.04%-0.08% of Ti, and the balance iron and unavoidable impurities. The yield strength R<p0.2> of the tinplated substrate is 260-330 MPa, the yield ratio of the tinplated substrate is 0.7-0.8, the after-fracture percentage elongation A<50> of the tinplated substrate is 35%-45%, and the aging index AI value of the tinplated substrate is 0-15MPa. The aging-resistant tinplated substrate and the manufacturing method thereof are mainly used for substrates of cans and covers with the aging requirement or complicated deformation.

Description

technical field [0001] The present invention relates to a cold-rolled tin-plated substrate, in particular to an aging-resistant tin-plated substrate and a manufacturing method thereof, in particular to an aging-resistant tin-plated substrate with a hardness value of 57±3HR30Tm and a manufacturing method thereof. The aging tin-plated substrate is produced by continuous annealing, and is mainly used for the substrate of tinplate cans and lids with aging requirements or complicated deformation, and belongs to the technical field of iron-based alloys. Background technique [0002] Tin-plated steel sheets are widely used in the packaging industry due to their excellent formability, corrosion resistance and surface decoration. Among them, soft materials with a hardness of HR30Tm at 57±3 are mainly used in some industries that have certain requirements for strength and aging requirements. Or the production of cans and lids with complex processing and deformation, and the main mecha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/04C22C38/02C22C38/06C22C38/14C21D8/02C21D1/26
CPCC22C38/04C21D1/26C21D8/0226C21D8/0247C21D2211/005C22C38/001C22C38/002C22C38/02C22C38/06C22C38/14
Inventor 李雯刘洪
Owner SHANGHAI MEISHAN IRON & STEEL CO LTD
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