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Preparation method of deep-drawing tinplate product

A technology for tinplate and products, applied in the direction of metal rolling, etc., can solve the problem of dull surface gloss of the product, and achieve the effect of reducing the drawing effect, increasing the continuity and eliminating the mirror reflection.

Pending Publication Date: 2021-08-20
ZHANGJIAGANG YANGTZE RIVER COLD ROLLED PLATE CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Technical problem to be solved: Aiming at the above technical problems, the present invention provides a method for preparing deep-drawn tinplate products, which can completely eliminate the problem of dull surface luster after deep-drawing deformation.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] The preparation of deep-drawing and large-deformation tinplate products is carried out according to the following process:

[0017] (1) Annealing, control the annealing temperature at 620~700°C;

[0018] (2) Temper rolling, control the elongation rate of the temper mill to 1.4%, and adjust the roll matching process of the work rolls of the temper mill. The work rolls of the 1# frame adopt EDM rolls, and the roughness is controlled to 1.5, and the 2# frame The working roll adopts a grinding smooth roll, the roughness is controlled to 0.35, and the particle size of the grinding wheel is 80 mesh;

[0019] (3) Electroplating, tin plating on the surface of tinplate;

[0020] (4) Reflow, control the reflow heating power to 1800kW, which is 40% of the rated power of the equipment, set the outlet temperature of the reflow box to 262°C, the measured temperature is 259°C, and the height difference between the reflow box and the process surface is 4.2m.

[0021] According to th...

Embodiment 2

[0023] The preparation of deep-drawing and large-deformation tinplate products is carried out according to the following process:

[0024] (1) Annealing, control the annealing temperature at 620~700°C;

[0025] (2) Temper rolling, control the elongation rate of the temper mill to 1.4%, and adjust the roll matching process of the work rolls of the temper mill. The work rolls of the 1# frame adopt EDM rolls, and the roughness is controlled to 1.4, and the 2# frame The working roll adopts a grinding smooth roll, the roughness is controlled to 0.3, and the particle size of the grinding wheel is 80 mesh;

[0026] (3) Electroplating, tin plating on the surface of tinplate;

[0027] (4) Reflow, control the reflow heating power to 2475kW, which is 55% of the rated power of the equipment, set the outlet temperature of the reflow box to 260°C, the measured temperature is 258°C, and the height difference between the reflow box and the process surface is 4.5m.

[0028] According to the...

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Abstract

The invention discloses a preparation method of a deep-drawing tinplate product, and belongs to the technical field of product quality. The preparation method comprises the processes of annealing, temper rolling, electroplating and soft melting, and in the temper rolling process, the roughness of a rack working roller 1 # is 1.4-1.55, and the roughness of a rack working roller 2 # is 0.3-0.4; and in the soft melting process, the soft melting heating power is 1800 kW-2475 kW, and an outlet temperature of a soft melting box is set to be 260 DEG C-263 DEG C. By means of the process method, the problem that the surface of a product is dim after deep drawing deformation can be thoroughly solved.

Description

technical field [0001] The invention belongs to the technical field of product quality, and in particular relates to a method for preparing a deep-drawn tinplate product. Background technique [0002] Tinplate is mainly used for beverage cans, food cans, aerosol cans and other products. There are two types of deformation in the manufacturing process, one with a deformation of less than 1:1.5 (conventional stamping deformation), and the other with a deformation greater than or equal to 1:1.5 (deep drawing deformation). The top cover of some products made of tinplate (such as the top cover of aerosol cans) has a special shape and a large amount of stamping deformation, and the surface coating of the steel plate is faulted during the deformation and extension process, resulting in dull and black surface color during use by the user. Affect the direct use effect of end users. [0003] The main reasons for the above phenomenon are as follows: 1. According to the light reflect...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21D1/26C25D3/30C25D5/50B21B1/24
CPCC21D1/26C25D3/30C25D5/505B21B1/24
Inventor 俞炜黄久贵郭宏
Owner ZHANGJIAGANG YANGTZE RIVER COLD ROLLED PLATE CO LTD
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