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Method for smelting TA2 flat ingot by cold cathode electron beam

An electron beam smelting and cold cathode technology, which is applied in the field of metal smelting, can solve the problems of cumbersome smelting TA2 flat ingot process, difficulty in quality assurance, production with guaranteed quantity, and time-consuming smelting process, etc., so as to improve the enterprise's market competitive advantage and surface quality Excellent, low-cost effect

Inactive Publication Date: 2020-04-03
YUNNAN TITANIUM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the existing methods for smelting TA2 ingots use a vacuum consumable furnace (VAR) for smelting. Since the vacuum consumable furnace can only melt and cast round ingots, it is necessary to forge the melted round ingots to obtain TA2 flat ingots, resulting in Vacuum consumable furnace smelting TA2 slabs has a cumbersome process, complex process, low yield, and high casting cost. At the same time, the entire smelting process takes a long time, and it is difficult to complete production with quality and quantity. Therefore, it is necessary to improve the existing technology

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A method for smelting TA2 slabs with cold cathode electron beams, comprising the following steps:

[0018] A. Send the conventional titanium raw material block into the electron beam cooling bed melting furnace, and start No. 1-5 EB guns in the following order: No. 5 EB gun → No. 4 EB gun → No. 3 EB gun → No. 2 EB gun → No. 1 EB guns, of which: the current of No. 1 EB gun, No. 2 EB gun, No. 3 EB gun, and No. 4 EB gun is 1A, the current of No. 5 EB gun is 1.5A, and the voltage of No. 1-5 EB guns is 30KV , to melt the titanium raw material block in the cooling bed;

[0019] B. Adjust the voltage of No. 6 and No. 7 EB guns set on the cooling bed to 30KV, adjust the scanning pattern of No. 6 EB gun to P6, and adjust the scanning pattern of No. 7 EB gun to P6, so that the adjustment of No. 6 and No. 7 The scanning pattern frequency of the EB gun is consistent, and the control current is 0.5A. After the titanium raw material block is completely melted into liquid, it is cool...

Embodiment 2

[0024] A method for smelting TA2 flat ingot with cold cathode electron beam, is characterized in that comprising the following steps:

[0025] A. Send the conventional titanium raw material block into the electron beam cooling bed melting furnace, and start No. 1-5 EB guns in the following order: No. 5 EB gun → No. 4 EB gun → No. 3 EB gun → No. 2 EB gun → No. 1 EB guns, of which: the current of No. 1 EB gun, No. 2 EB gun, No. 3 EB gun, No. 4 EB gun is 5A, the current of No. 5 EB gun is 2.5A, and the voltage of No. 1-5 EB guns is 30KV , to melt the titanium raw material block in the cooling bed;

[0026] B. Adjust the voltage of No. 6 and No. 7 EB guns set on the cooling bed to 30KV, adjust the scanning pattern of No. 6 EB gun to P6, and adjust the scanning pattern of No. 7 EB gun to P6, so that the adjustment of No. 6 and No. 7 The scanning pattern frequency of the EB gun is consistent, and the control current is 2.5A. After the titanium raw material block is completely melte...

Embodiment 3

[0031] A method for smelting TA2 flat ingot with cold cathode electron beam, is characterized in that comprising the following steps:

[0032] A. Send the conventional titanium raw material block into the electron beam cooling bed melting furnace, start No. 1-5 EB guns in the following order: No. 5 EB gun → No. 4 EB gun → No. 3 EB gun → No. 2 EB gun → No. 1 EB guns, of which: the current of No. 1 EB gun, No. 2 EB gun, No. 3 EB gun, and No. 4 EB gun is 3A, the current of No. 5 EB gun is 2A, and the voltage of No. 1-5 EB guns is 30KV. Melting the titanium raw material blocks in the cooling bed;

[0033] B. Adjust the voltage of No. 6 and No. 7 EB guns set on the cooling bed to 30KV, adjust the scanning pattern of No. 6 EB gun to P6, and adjust the scanning pattern of No. 7 EB gun to P6, so that the adjustment of No. 6 and No. 7 The scanning pattern frequency of the EB gun is consistent, and the control current is 1.5A. After the titanium raw material block is completely melted ...

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PUM

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Abstract

The invention provides a method for smelting TA2 flat ingot by cold cathode electron beam. The method comprises the following steps of A, feeding a conventional titanium raw material block into an electron beam cold bed smelting furnace, starting an EB gun 1-5, and melting the titanium raw material block in the cold bed; B, adjusting the scanning patterns of EB guns 6 and 7 to completely melt thetitanium raw material block to liquid; C, putting the molten liquid in the cooling bed into a crystallizer, and covering the whole crystallizer with scanning patterns of EB guns 6 and 7; and D, adjusting the current of the EB gun 1-4 to be 2-6 A, adjusting the current of the EB gun 5 to be 4-6 A, adjusting the current of the EB gun 6-7 to be 2-4 A, smelting and ingot drawing at a speed of 600-800kg / h, and cooling to obtain the TA2 flat ingot. The method is low in cost, high in production and yield, stable in chemical composition and excellent in surface quality.

Description

technical field [0001] The invention relates to a method for smelting TA2 slabs with cold cathode electron beams, belonging to the technical field of metal smelting. [0002] technical background [0003] TA2 ingot contains trace amounts of C, H, O, N and Fe, its corrosion resistance and comprehensive mechanical properties are moderate, and it is widely used in chemical, medical, aviation and other fields. However, most of the existing methods for smelting TA2 ingots use a vacuum consumable furnace (VAR) for smelting. Since the vacuum consumable furnace can only melt and cast round ingots, it is necessary to forge the melted round ingots to obtain TA2 flat ingots, resulting in Vacuum consumable furnace smelting TA2 slabs has a cumbersome process, complex process, low yield and high casting cost. At the same time, the entire smelting process takes a long time, and it is difficult to complete production with quality and quantity. Therefore, it is necessary to improve the existi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B9/22
CPCC22B9/228
Inventor 朱晓龙王凯刘兴铭李勇
Owner YUNNAN TITANIUM IND
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