Double-reduced tin plate

A technology of secondary cold rolling and tinplate, applied in hot dip plating, coating, metal material coating, etc., can solve the problems of increasing labor cost, affecting the quality of tinplate, and low quality of tinplate.

Pending Publication Date: 2021-02-19
徐国进
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] According to CN111515247A, a secondary cold-rolled tin plate, the invention is mainly used to solve the problem that the outer surface of the tin plate cannot be finely treated in the current winding process of the tin plate, resulting in the quality of the tin plate Not high, and at the same time, in the current winding device, one type of winding device only corresponds to one type of tinplate, which leads to the problem of waste caused by too many winding devices
[0004] In the prior art, there are many problems in the production process of hot-dip tinning, which affect the quality of tinning. For example, during the tinning process, since the tinning box is open, the liquid tin inside the tinning box will directly contact with the tinning box. Contac

Method used

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Examples

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preparation example Construction

[0038] Such as Figure 1 to Figure 6 Shown, a kind of secondary cold-rolled tinplate of the present invention, the preparation method of this tinplate comprises the following steps:

[0039] S1: First take the billet, cold-roll and anneal the billet to obtain the basic steel plate, then add the basic steel plate into the double stand, and carry out modulation rolling, so that the plate shape is more flat and the surface of the basic steel plate is finished , the thickness of the basic steel plate is required to be 0.15-0.6mm, and a rolling plate is obtained;

[0040] S2: Then add the primary rolling plate to the secondary cold rolling unit, and obtain the secondary rolling plate through secondary cold rolling. After the secondary cold rolling, the thickness of the secondary rolling plate should be controlled at 0.1-0.36mm;

[0041] S3: Then perform annealing treatment on the secondary rolling plate, and the annealing temperature is required to be controlled at 650-750°C, so t...

Embodiment approach

[0047] As an embodiment of the present invention, the upper surface of the sealing baffle 3 is provided with a top groove; the inside of the top groove is slidably connected with a top plate 13; the groove bottom of the top groove is fixedly connected with a third telescopic rod 14 , and the upper end surface of the piston rod of the third telescopic rod 14 is fixedly connected with the top plate 13; during work, by setting the third telescopic rod 14, the top board 13 will be driven to move upward by the third telescopic rod 14, when the cut strip plate 6 approaches When sealing the baffle 3, in order to prevent the sliding of the sealing baffle 3 left and right on the lower surface of the cut-off strip 6, there is a gap between the sealing baffle 3 and the cut-off strip 6, and it can be ejected upwards through the top plate 13. The air in the gap space is completely squeezed out, avoiding that when the cutting baffle plate 6 continues to move downward, a small amount of air w...

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Abstract

The invention belongs to the technical field of tin plate processing, and particularly relates to a double-reduced tin plate. A hot-dip tinning machine used in a production process of the tin plate comprises a shell, a tinning box and a sealing baffle plate, a placement plate is arranged at the position, close to the left side face of the shell, inside the shell, a cut strip plate is stacked on the upper surface of the placement plate, the tinning box is fixedly connected to the position, on the right side of the placement plate, inside the shell, and the sealing baffle plate is connected to the interior of the tinning box in a left-right sliding mode. By means of the machine, automatic tinning on the cut strip plate is effectively achieved, meanwhile, through a sealing structure, the tinning box is always isolated from outside air in a one-way mode while it is guaranteed that the cut strip plate is normally guided into the tinning box, so that liquid tin inside the tinning box is guaranteed not to make direct contact with air, the condition that the liquid tin liquid level is oxidized, so that the quality of the cut strip plate is influences is avoided, meanwhile, the problem thata large amount of tin gas generated by tin liquid evaporation is exhausted and pollutes the atmosphere is solved, and the tin plating quality is improved.

Description

technical field [0001] The invention belongs to the technical field of tinplate processing, in particular to a secondary cold-rolled tinplate. Background technique [0002] Tin plating and its alloys are coatings with good solderability and certain corrosion resistance. They are widely used in electronic components and printed circuit boards. In addition to physical methods such as hot dipping and spraying, the preparation of tin layers can be done by electroplating, dipping, etc. Plating and electroless plating have been widely used in industry because of their simplicity. Hot-dip tin plating is a tin plating process using hot-dip plating, which can obtain a crystalline coating with good bonding force, strong corrosion resistance, and brightness. Tin-plated coating is characterized by corrosion resistance to organic acids, non-toxic, good weldability, bright surface and not easy to change color, and can be printed and decorated. Therefore, it has been used in the packaging ...

Claims

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Application Information

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IPC IPC(8): C23C2/08C23C2/40C23C2/02C21D8/02
CPCC21D8/0236C21D8/0268C21D8/0273C23C2/003C23C2/02C23C2/08C23C2/405
Inventor 徐国进刘娜
Owner 徐国进
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