Aligning device and aligning method for welding of false electrodes

Abstract

The invention provides an aligning device and aligning method for welding of false electrodes. The aligning device comprises a bracket, and at least one pair of first rollers fixedly arranged on the bracket. The aligning device is characterized in that an aligning platform is also arranged on the bracket, and comprises a plurality of standing posts which are fixedly erected on the bracket, a lifting platform which is arranged on the standing posts in a sleeving manner and can move up and down along the standing posts, and at least one pair of second rollers which are fixedly arranged on the lifting platform, and the symmetric planes of the first rollers and the second rollers are the same planes. The aligning device is simple in structure, and convenient to mount and use, the center heightof the false electrodes is adjusted by a jack, and the center line of steel ingots subjected to electroslag remelting and the center line of the false electrodes are quickly adjusted to the same straight line.

Description

technical field [0001] The invention relates to a metallurgical device, in particular to an alignment device for dummy electrode welding and an alignment method thereof. Background technique [0002] In order to improve the quality of steel, the ingot will be produced by electroslag remelting. In order to facilitate clamping and maintain good electrical conductivity, the electroslag remelting equipment will design a special dummy electrode. It is welded with the steel ingot that needs electroslag remelting, and then the dummy electrode end is installed on the electroslag remelting furnace. After the electroslag remelting production, the dummy electrode is cut out and reused. However, the distance between the mold for electroslag remelting and the electrode is relatively small, so it is necessary to ensure that the center line of the ingot to be electroslag remelting and the center line of the dummy electrode are on the same straight line. [0003] Because the diameter of th...

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Problems solved by technology

[0003] Because the diameter of the dummy electrode is smaller than that of the steel ingot that needs electroslag remelting, and the weight is lighter, there are two main devices and methods for centering the dummy electrode and the steel ingot that needs electroslag remelting. The molten steel ingot is placed on the welding roller frame group, and then the dummy electrode is placed on the fixed V-shaped frame. When welding steel ingots with different diameters that need electroslag remelting, the distance between the rollers of the welding roller frame group needs to be adjusted. Make the center line of the steel ingot that needs electroslag remelting and the center line of the dummy electrode be on the same straight line, because the welding roller frame group consists of at least two sets (4 rollers), and the weight of the steel ingot that needs electroslag remelting is large, When adjusting, it is necessary to ensure that the center of each roller frame is on the same straight line, and it is also necessary to ensure that the distance between the rollers of each roller frame is the same, and the adjustment is very cumbersome

The other is to place the steel ingot that needs electroslag remelting on a fixed welding roller frame group. When welding steel ingots that need electroslag remelting with different diameters, use different V-shaped frames to support the dummy electrodes to ensure that the steel ingots that need electroslag remelting are welded. The center line of the remelted steel ingot and the center line of the dummy electrode are on the same straight line. Although this method is simple to operate, each type of dummy electrode needs a corresponding V-shaped frame. The molten steel ingot also needs to have a corresponding V-shaped frame, so the production cost is high, and the V-shaped frame takes up a lot of space, which is not convenient for on-site management

In addition, there is still a problem with the above two centering devices: there is a certain gap between the dummy electrode and the steel ingot that needs electroslag remelting after installation, and they need to be manually pasted together before welding, so the operation is difficult

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