Tin-plated steel plate printed on one side and coated with baking-resistant floral frame printing and its manufacturing method

A technology of a tin-plated steel sheet and a manufacturing method, which is applied in the field of iron-based alloys, can solve the problems of large fluctuations and attenuation of the roughness of the scalded print of the flower stand, and achieves the effects of small fluctuations, reduced contact point area, and reduced production difficulty.

Active Publication Date: 2019-03-26
SHANGHAI MEISHAN IRON & STEEL CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The purpose of the present invention is to provide a tinned steel plate coated with bake-resistant flower frame printing on one side and its manufacturing method, so as to solve the high roughness of the plain iron surface of the tin-plated steel sheet that is prone to flower frame burn marks and the dry leveling process in the prior art. The technical problems of rapid roughness attenuation and large fluctuations in the production process of high-strength tin-plated steel sheets

Method used

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  • Tin-plated steel plate printed on one side and coated with baking-resistant floral frame printing and its manufacturing method
  • Tin-plated steel plate printed on one side and coated with baking-resistant floral frame printing and its manufacturing method
  • Tin-plated steel plate printed on one side and coated with baking-resistant floral frame printing and its manufacturing method

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Embodiment Construction

[0036] The present invention will be further illustrated below in conjunction with specific embodiments, and it should be understood that the following specific embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention.

[0037] The invention discloses a method for manufacturing a tin-plated steel plate printed and coated with a baking-resistant floral print on one side. The method includes:

[0038] Pickling, cold continuous rolling, annealing, and leveling of hot-rolled steel sheets with a thickness of 2.0-2.5 mm to obtain cold-rolled steel strips with a thickness of 0.18-0.30 mm; , passivation, and the finished tin-plated steel coil obtained after coiling, wherein,

[0039] The chemical composition weight percentage of the hot-rolled steel sheet is: C: 0.02%-0.09%, Si≤0.04%, Mn: 0.1%-0.4%, P≤0.03%, S≤0.02%, Alt: 0.01%-0.05% , N≤0.005%, the balance is Fe and unavoidable impurity elements, the yield strengt...

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Abstract

The invention relates to a tinned steel sheet with the single face being printed and coated with resistance-to-bake pergola prints and a manufacturing method thereof. The technical problem that pergola burning printing can happen to the plain sheet face of an existing tinned steel sheet easily is mainly solved. The tinned steel sheet with the single face being printed and coated with the resistance-to-bake pergola prints comprises, by weight, 0.02%-0.09% of C, 0-0.04% of Si, 0.1%-0.4% of Mn, 0-0.03% of P, 0-0.02% of S, 0.01%-0.05% of Alt, 0-0.005% of N, and the balance Fe and inevitable impurities. The yield strength of the tinned steel sheet is 350-430MPa, the tensile strength is 380-450MPa, the surface hardness is 61+ / -3HR30Tm, the tin coating weight of a coating is 2.0-3.0g / m<2>, the surface roughness Ra is 0.4-0.6 micron, and the adhesive force is smaller than or equal to the 2 level. The tinned steel sheet and the manufacturing method thereof are mainly used in food cans, beverage cans and the like.

Description

technical field [0001] The invention relates to a tinned steel plate with baking-resistant floral frame printing, in particular to a tinned steel plate coated with baking-resistant floral frame printing on one side and a manufacturing method thereof, belonging to the technical field of iron-based alloys. Background technique [0002] Tin-plated steel sheet is widely used in food, beverage and other packaging industries due to its excellent formability, corrosion resistance and surface decoration. The main production process is divided into internal coating, external coating, color printing, glazing and so on. Since most printing and coating units need to carry out multi-pass coating and drying, when each pass is dried, the color printing plate needs to be placed on a metal baking rack and sequentially entered into an oven between 150 and 210°C. The melting point of Tin Oxide is only 231°C. Therefore, during the multiple printing and baking processes, the board surface will ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C38/06C21D8/02
Inventor 李雯曹美霞
Owner SHANGHAI MEISHAN IRON & STEEL CO LTD
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