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Electroplating bath used for continuous strip-shaped materials

An electroplating tank and strip technology, applied in the electrolysis process, electrolysis components, etc., can solve the problems of uneven current density distribution, affecting the quality of strip materials, uneven distribution of power lines, etc., to achieve simple structure, reduce nickel loss, power line Evenly distributed effect

Inactive Publication Date: 2018-04-17
CHANGDE LYRUN MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the electroplating tank in the prior art, the distribution of electric force lines is not uniform, that is, the current density distribution is not uniform, and the place where the current density on both sides is high, the coating is thick (that is, the surface of the strip material is along the width direction, and the coating is thick on both sides), and the middle current Where the density is small, the coating is thin (that is, the surface of the strip material is along the width direction, and the middle coating is thin)
The uneven distribution of power lines causes uneven coating on the surface of the strip material, causing warping and other deformations on the edge of the strip material, which affects the quality of the strip material, and the failure rate is relatively high, resulting in higher manufacturing costs.

Method used

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Examples

Experimental program
Comparison scheme
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Embodiment 1

[0018] A plating bath for continuous strip material such as figure 1 , figure 2 As shown, the anode 2 made of five parallel titanium baskets is vertically arranged in the tank body 1. The titanium basket is filled with nickel blocks, and the anode 2 is fixed on the anode fixing bracket 3 at the top of the tank body 1. In the tank body 1 Three conductive rollers 4 are arranged above the anode 2, and two driving rollers 5 are arranged at the position below the anode 2 in the tank body 1. The conductive rollers 4 and the driving rollers 5 start from the leftmost Anodes 2 are placed in sequence and one anode 2 corresponds to a conductive roller 4 or a driving roller 5, the diameter of the conductive roller 4 and the driving roller 5 is the same, 300mm, and the distance between two adjacent anodes 2 is the same as the diameter of the conductive roller 4 Namely 300mm, between two adjacent anodes 2, there are two shielding boxes 6 opposite to each other and centered and symmetrical...

Embodiment 2

[0021] A kind of electroplating tank that is used for continuous strip material, its structure is similar to the structure of the electroplating tank that is used for continuous strip material in embodiment 1, and its difference is:

[0022] 1. The number of anodes is three, the number of conductive rollers is two, and the number of transmission rollers is one;

[0023] 2. The diameters of the conductive roller and the driving roller are both 350mm, that is, the distance between two adjacent anodes is 350mm;

[0024] 3. The distance between the two shielding boxes is 80% of the width of the continuous strip material to be electroplated. The area of ​​the first-level shielding plate and the second-level shielding plate is 1 / 4 of the anode area. The distance between the two first-level shielding plates The distance is 150mm, the distance between the two secondary shielding plates is 30mm, and the distance between the two secondary shielding plates and the adjacent primary shield...

Embodiment 3

[0027] A kind of electroplating tank that is used for continuous strip material, its structure is similar to the structure of the electroplating tank that is used for continuous strip material in embodiment 1, and its difference is:

[0028] 1. The number of anodes is seven, the number of conductive rollers is four, and the number of transmission rollers is three;

[0029] 2. The diameters of the conductive roller and the driving roller are both 250mm, that is, the distance between two adjacent anodes is 250mm;

[0030] 3. The distance between the two shielding boxes is 70% of the width of the continuous strip material to be electroplated. The area of ​​the first-level shielding plate and the second-level shielding plate is 1 / 4 of the anode area. The distance between the two first-level shielding plates The distance is 100mm, the distance between the two secondary shielding plates is 20mm, and the distance between the two secondary shielding plates and the adjacent primary shi...

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Abstract

The invention provides an electroplating bath used for continuous strip-shaped materials. At least three (an odder number) anodes which are placed in parallel are perpendicularly arranged in a slot body; at least two conductive rollers are arranged above the slot body; at least one transmission roller is arranged on a position, below the anodes, in the slot body; from the anode at the rightmost side or the anode at the leftmost side, the conductive rollers and the transmission rollers are sequentially placed in a circulating mode of the conductive rollers and the transmission rollers, and oneanode corresponds to one conductive roller or one transmission roller; total quantity of the conductive rollers and the transmission rollers is same as that of the anodes, and quantity of the conductive rollers is greater than that of the transmission rollers by one; shielding boxes are arranged between every two adjacent anodes in parallel, and sides with openings of the shielding boxes are opposite, and the shielding boxes are placed at certain distance; and the shielding boxes can move in a direction parallel to the anodes between every two adjacent anodes. The electroplating bath used forthe continuous strip-shaped materials provided by the invention is simple in structure, and guarantees that power lines are uniformly distributed, so that the strip-shaped materials are electroplatedmore uniformly.

Description

technical field [0001] The present invention relates to an electroplating bath for continuous strips of material. Background technique [0002] In electroplating, electroplating is achieved by using the current in the electroplating solution. In the prior art, generally several anodes placed in parallel are set in the electroplating tank, the strip-shaped material is connected to the cathode, and the strip-shaped material passes between two adjacent anodes in parallel. After electrification, metal ions gather on the surface of the strip-shaped material so that To achieve electroplating. However, in the electroplating tank in the prior art, the distribution of electric force lines is not uniform, that is, the current density distribution is not uniform, and the place where the current density on both sides is high, the coating is thick (that is, the surface of the strip material is along the width direction, and the coating is thick on both sides), and the middle current Wh...

Claims

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Application Information

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IPC IPC(8): C25D7/06C25D17/00
CPCC25D7/0614C25D17/00
Inventor 肖习良候群钟发平彭明飞夏健康
Owner CHANGDE LYRUN MATERIAL