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Large-scale great current mixed mode cathode roll

A high-current, composite technology, applied in the direction of the electrode, etc., to achieve the effect of improving the structure of the weld, ensuring the uniformity of conduction, and high quality

Active Publication Date: 2008-09-24
宝钛特种金属有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Cathode roller

Method used

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  • Large-scale great current mixed mode cathode roll
  • Large-scale great current mixed mode cathode roll
  • Large-scale great current mixed mode cathode roll

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Embodiment Construction

[0025] combined with figure 1 , 2, 3 describe an embodiment of the present invention.

[0026] Manufacturing method of large-scale titanium cathode roller body:

[0027] 1. Heating both ends of the titanium plate to 400-500°C and then molding it to form a flange with a height greater than 70% of the forging deformation to the outside;

[0028] 2. Roll the titanium plate into a cylinder so that the molded flanges are butted, and the joints are fully welded. The welding current is controlled between 100 and 200A, and X-ray inspection is carried out to make the weld reach JB4730 Level I or above in the -94 standard.

[0029] 3. Forging the weld seam four times after high-frequency induction heating, the first forging deformation is controlled at about 25%, the temperature is controlled at about 1000°C, the second forging deformation is controlled at about 30%, and the temperature is controlled at 950 ℃, the deformation amount of the third forging is controlled at about 30%, th...

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Abstract

The invention relates to a large-specification large current compound cathode roll; the main shaft of the roll is arranged in a roll cylinder along the axial direction; the roll cylinder is fixedly connected with the main shaft through a conductive wheel and a copper conductive plate. The two ends of the roll cylinder are sealed by baffles; the roll cylinder is formed through thermally mounting a titanium cylinder in the outer layer and a steel-copper compound cylinder which uses steel to coat the copper in the inner layer. The invention adopts an end part coining forming method to process a height with an amount that can be forged which is easy and practical; folding phenomena is hard to form when forging; welding line tissues can be further improved by rolling after being forged; the titanium cylinder manufactured by the method has the advantages of low cost and high quality. The cathode roll prepared by the material can ensure the conductive uniformity when large current is inputted; the surface of the roll cylinder is not overheated when the current of 35000A is inputted, thus improving the current density of the current and the output as well as the quality of foil and prolonging the service life of the cathode roll.

Description

technical field [0001] The invention relates to a large-scale and high-current composite cathode roller. Background technique [0002] The closest existing technology to the present invention is the invention patent of "Manufacturing Method of Titanium Cathode Roller Body", publication number CN1570218A. First, the titanium plate is rolled into a cylinder and welded at the seam; Heating in the zone, upsetting the weld and then forging flat, repeated many times, so that the weld deformed many times, and each time the deformation should be more than 30%. By deforming the casting structure, the casting structure will be changed to the base The equiaxed structure of the material structure is basically the same, thereby eliminating the periodic bright bands printed on the foil by the weld structure, and meeting the production technical requirements of the foil. This method uses external force to achieve weld upsetting after the two plates are welded. Since the strength of the we...

Claims

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Application Information

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IPC IPC(8): C25D17/10C25D17/12
Inventor 任连保宋文君刘红孙文斌马余选杨广义
Owner 宝钛特种金属有限公司