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Method for manufacturing stanningmetal plate

A manufacturing method and technology of metal plates, which are applied in the direction of metal material coating process, contour control, pressure inorganic powder coating, etc., can solve the problem of low production efficiency, difficult product quality stability, electrolytic tin plating process and chemical tin plating process, etc. Process adaptability limitations and other issues, to achieve the effect of high tin plating efficiency, low work efficiency, and large equipment investment

Active Publication Date: 2007-10-31
BAOSHAN IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, the conditions of the electro-tin plating process and the chemical tin plating process are very harsh, the operation is difficult, and the stability of product quality is another major problem in the tin plating industry.
In addition, the production efficiency of the electroless tin plating process and the chemical tin plating process is not high, and the equipment investment of both is very large. Since both require an ion conversion process, the process adaptability is limited and the production efficiency is low.

Method used

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  • Method for manufacturing stanningmetal plate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] The substrate is an IF steel plate with a thickness of 0.25mm. After pickling and drying, the surface is clean and the steel plate is of good quality.

[0037] Use cold air power spraying technology to spray pure tin coating on the surface. The cold spraying process is: the driving gas is a mixture of nitrogen and helium, the pressure is 1.0MPa, the gas temperature is 100°C, and the particle size of the powder is 10-40μm. The thickness is 5 μm.

[0038] After spraying, smoothing treatment is adopted, and the reduction is 1%.

[0039] After reflow treatment at 150°C, a bright tin-plated plate is obtained.

[0040] The test results show that the tin-plated layer is well bonded to the substrate, no iron is exposed on the surface of the tin-plated plate, and the surface of the tin-plated plate is bright.

Embodiment 2

[0042] The substrate is a bronze plate with a thickness of 0.5mm. After the surface is cleaned and dried,

[0043] Use cold air power spraying technology to spray composite tin coating on the surface:

[0044] The first layer of coating: the driving gas is a mixture of nitrogen and helium, the pressure is 3.0MPa, the powder particle size is 1-10μm tin-copper alloy powder, and the temperature is 650°C;

[0045] The second layer of coating: the driving gas is a mixture of nitrogen and argon, the pressure is 1.5MPa, the powder particle size is 40-60μm tin-lead alloy powder, the temperature is 100℃; the total thickness of the coating is 20μm.

[0046] The cold-rolling and finishing-rolling process is as follows: one pass rolling with a reduction of 30%.

[0047] The reflow treatment temperature is 140°C to obtain a bright tin plate.

[0048] The T-bend test shows that there is no crack and peeling of the tin plating layer, and the combination of the plating layer and the bronze ...

Embodiment 3

[0050] The substrate is a zinc alloy plate with a thickness of 1.5mm. After the surface is cleaned and dried,

[0051] Use cold air power spraying technology to spray composite tin coating on the surface:

[0052] The first layer of coating: the driving gas is air, the pressure is 3.0MPa, the powder particle size is 1-20μm tin-cobalt alloy powder, and the temperature is 300°C;

[0053] The second layer of coating: the driving gas is a mixture of nitrogen, argon and hydrogen, the pressure is 1.5MPa, the powder is tin-zinc alloy powder with a particle size of 40-60μm, and the temperature is room temperature; the total thickness of the coating is 30μm.

[0054] The cold rolling and finishing rolling process is: two-pass rolling, and the reduction is 30%.

[0055] The reflow treatment temperature is 150°C to obtain a bright tin plate.

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Abstract

The invention discloses a preparing method of tin plate metal plate, which comprises the following steps: cleaning and drying surface of metal base plate; spraying tin or tin alloy coating on the surface of the metal base plate with cold air dynamic spraying technique; flattening or cold-rolling; forming tin plate metal sheet with flat surface; reflowing; forming bright tin plate sheet. This invention can prepare tin plate sheet with arbitrary thickness, which possesses high productive efficiency, short flow process and high quality of coating surface.

Description

technical field [0001] The invention relates to a manufacturing method of a tinned metal sheet, in particular to a manufacturing method of a galvanized metal sheet which adopts cold air power spraying and cold rolling smoothing treatment. Background technique [0002] Tin-plated metal sheet is an important class of materials, which have extremely important applications in metallurgy, beverage, electronics and other industries. Tin plate is a cold-rolled low-carbon thin steel plate coated with pure tin on both sides. It not only has a long history for making food cans, but also has an irreplaceable position. At the same time, the tin-plated layer is a coating with good solderability. Tin-plated copper plates are widely used in the fields of electronic components and printed boards. Tin-plated copper printed circuit boards and complex electronic components can improve solderability. At present, most printed circuit boards at home and abroad use tin or tin-lead alloy coatings ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C24/00C23C24/08C23C24/02B21B37/28C22F1/00
Inventor 张俊宝崔健方园宋洪伟
Owner BAOSHAN IRON & STEEL CO LTD
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