Double-reduced tin plate

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 ...

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. Contact between the air, the air contains a lot of oxygen, which will oxidize the liquid tin at the liquid surface, resulting in an oxidized liquid film on the liquid surface of the liquid tin. The oxide film on the liquid surface of tin is manually removed, which seriously affects the work efficiency and also increases the labor cost. Moreover, when the tin is in a high temperature state, the liquid tin is easy to gasify, and the staff are under this condition for a long time, and a large amount of tin is inhaled. It will cause serious harm to the body of the staff, and the liquid surface of the liquid tin itself is in direct contact with the air. Due to the low temperature of the air, the liquid surface of the liquid tin will also solidify and form a liquid film.

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