Slagging and slagging method for high-temperature alloy short-electrode electroslag furnace

Abstract

The invention belongs to the technical field of slag adding to an electroslag furnace, and in particular relates to a method for adding slag and making slag to a high-temperature alloy short-electrode electroslag furnace. The electroslag furnace slagging method of the superalloy short electrode of the present invention, the slag material is first placed in the slag adding machine, the slag adding machine is started, the slag material enters the lower fume hood along the slag adding pipe, then reaches the lower flange, and Gather and align on the flange, enter the crystallizer, flow through the electrode cap, and finally reach the bottom pad to start slagging. The slag addition and slagging method of the electroslag furnace with the superalloy short electrode of the present invention is a simple and smooth feeding method, so that the slag can enter the bottom pad of the crystallizer evenly without delay, and the setting of the electrode cap can improve the slag The utilization rate of the material, by setting appropriate parameters, can not only ensure the smooth slagging process, but also speed up the smelting rhythm, make the thickness of the slag skin small and the slag inclusion light, thereby improving the quality of the alloy.

Description

technical field [0001] The invention belongs to the technical field of slag adding to an electroslag furnace, and in particular relates to a method for adding slag and making slag to a high-temperature alloy short-electrode electroslag furnace. Background technique [0002] Superalloys refer to a class of metal materials based on iron, nickel, and cobalt, which can work for a long time at high temperatures above 600°C and under certain stresses; and have high high-temperature strength, good oxidation resistance and corrosion resistance. Good fatigue performance, fracture toughness and other comprehensive properties. The superalloy is a single austenite structure, which has good structure stability and service reliability at various temperatures. As a material widely used in aviation, aerospace, petroleum, chemical industry, ships and other fields, superalloy has broad development prospects. [0003] As a very important link in the smelting process of superalloy alloys, ele...

AI Technical Summary

Problems solved by technology

Especially when the electrode is short, the height of the top of the electrode will be lower than the height of the lower flange. When the slag enters the crystallizer through the lower flange, a considerable part of the slag will accumulate on the top of the electrode at the beginning, which will delay the slag discharge. The time it takes for the material to reach the bottom of the crystallizer will cause arc breaks or alloy quality degradation, and inappropriate parameter settings will also affect alloy quality or even cause arc breaks

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