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Making process of large titanium cathode roller cylinder and composite great current cathode roller

A manufacturing method and cathode roller technology, which are applied to electrodes and other directions, can solve the problems of affecting the normal use of the cathode roller, the quality of the foil, affecting the current uniformity of the surface of the titanium cylinder, affecting the conductivity uniformity, etc., so as to achieve low cost and improve the conductivity uniformity. , to ensure the effect of stiffness

Active Publication Date: 2008-11-26
宝钛特种金属有限公司
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  • Description
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AI Technical Summary

Problems solved by technology

This kind of structure is difficult to ensure high current, because the slender shaft of copper-wrapped steel is difficult to ensure the bonding rate, the conductive plate and the flange are fixed by bolts, and the installation and bonding surface is not good, which will cause local point contact or long-term rotation of the cathode roller. , the bolts are loose, which directly affects the uniformity of conductivity. As a result, a large current passes through the place where the connection is good, resulting in local overheating of the roller surface, which affects the normal use of the cathode roller and the quality of the foil material; on the other hand, the inner layer is copper. - Copper-steel composite cylinder formed by coiling and welding of steel explosive clad plate. In order to ensure the size requirement of thermal charging, the copper layer on the outer surface of the copper-steel composite cylinder must be machined, resulting in uneven thickness of copper layer and affecting the titanium cylinder. Uniformity of surface current, ultimately affecting foil quality

Method used

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  • Making process of large titanium cathode roller cylinder and composite great current cathode roller
  • Making process of large titanium cathode roller cylinder and composite great current cathode roller
  • Making process of large titanium cathode roller cylinder and composite great current cathode roller

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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 Grade 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 present invention is making process of large titanium cathode roller cylinder and composite great current cathode roller. The making process includes the steps of: heating ends of titanium plate and molding to form flanges of certain height; winding the titanium plate into cylinder and butt welding the formed flanges; heating the weld seam, forging and rolling the weld seam, and heat treatment the whole titanium cylinder. The composite great current cathode roller with the titanium cylinder has main shaft inside the cylinder, conducting wheel, copper conducting plate, and steel-copper cylinder assembled together. The titanium cylinder has low cost and high quality, and the composite great current cathode roller has homogeneous current, no overheat and long service life.

Description

technical field [0001] The invention relates to a method for manufacturing a large-scale titanium cathode roller body. 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 stre...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25D17/10
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
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