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Quick casting cold crucible suspension furnace and alloy smelting method

A rapid casting and cold crucible technology, applied in crucible furnaces, furnaces, furnace types, etc., can solve the problems of ceramic crucible waste, high-quality alloy pollution, melting high temperature, etc., to prevent pollution of alloy liquid, uniform melting components, and reduce condensation shell effect

Pending Publication Date: 2022-04-08
SHENYANG RES INST OF FOUNDRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The design feature of the rapid casting cold crucible suspension furnace is that the equipment replaces the crucibles of ceramic materials such as zirconia and aluminum oxide used in the original rapid casting furnace with a water-cooled copper crucible. The water-cooled copper crucible has a water cooling function and has Continuous use, maintenance-free, etc.; the melting coil and the casting coil are powered independently, avoiding the complicated mechanical action of casting plugs and the pollution of the alloy liquid by the bottom plug, and solving the problem of melting high-temperature, high-quality alloy pollution and solving the problem of ceramics Crucible waste problem, while solving the problem of ordinary rapid casting furnace, and the problem of water-cooled copper crucible solidification shell during casting, improve material utilization, reduce the complexity of the equipment, and because of the suspension melting effect, batching melting, the upper part After all the melting components of the alloy are uniform, the melting bottom plug can ensure uniform composition and temperature; therefore, the entire melting chamber does not need to break the vacuum, and it is kept in a vacuum state for continuous production, which can well ensure the vacuum degree of the melting chamber and improve production. Excellent product quality, because it is all melted and cast at one time, casting large castings, there will be no casting defects, suitable for large-scale production of enterprises, and continuous production can be realized

Method used

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  • Quick casting cold crucible suspension furnace and alloy smelting method
  • Quick casting cold crucible suspension furnace and alloy smelting method
  • Quick casting cold crucible suspension furnace and alloy smelting method

Examples

Experimental program
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Effect test

Embodiment 1

[0023] The melting of the titanium-based composite material is carried out by using a rapid casting cold crucible suspension furnace. The alloy composition of the titanium-based composite material is Ti: balance, Ni: 0.8%, C: 0.5%, Mo: 0.3%, Cr: 5%; the specific steps as follows:

[0024] In the first step, put the standard alloy material 17 to be melted into the melting crucible 6, put the casting mold 9 into the casting chamber 10, close the furnace cover 3 of the melting chamber, start the vacuum unit 15, open the pneumatic valve 14 of the melting chamber and the casting chamber. Pneumatic valve 13 in the mold chamber, when the vacuum degree reaches ≤10-2Pa, start the lifting mechanism 11 to drive the mold 9 to the designated position in the melting chamber 7;

[0025] In the second step, the melting coil 5 is energized to generate an alternating magnetic field to rapidly heat the alloy material. The heating power is 200KW for 15-20 minutes. The walls are not in contact, t...

Embodiment 2

[0028] Use the rapid casting cold crucible suspension furnace to melt the aluminum-lithium alloy material, and add Ti: 0.3% to the aluminum-lithium alloy; the specific steps are as follows:

[0029] In the first step, put the pre-processed standard alloy ingot into the casting hole at the bottom of the melting crucible 6, mix the alloy material into the melting crucible 6, put the casting mold 9 into the casting chamber 10, and close the melting chamber Furnace cover 3, start the vacuum unit 15, open the pneumatic valve 14 of the smelting chamber and the pneumatic valve 13 of the casting chamber, wait for the vacuum degree to be ≤ 10-2Pa, start the lifting mechanism 11 to drive the mold 9 to the designated position in the smelting chamber 7 ;

[0030] In the second step, the melting coil 5 is energized to generate an alternating magnetic field to rapidly heat the alloy material. The melting power is 30KW and kept for 10-20 minutes. Under the action of the electromagnetic fiel...

Embodiment 3

[0033] Utilize rapid casting cold crucible suspension furnace to carry out the smelting of high entropy alloy material, Zr: 20%, Ti: 20%, Ni: 20%, W: 20%, Mo: 20%; Its specific steps are as follows:

[0034] In the first step, put the standard alloy material 17 to be melted into the melting crucible 6, put the casting mold 9 into the casting chamber 10, close the furnace cover 3 of the melting chamber, start the vacuum unit 15, open the pneumatic valve 14 of the melting chamber and the casting chamber. Pneumatic valve 13 in the mold chamber, when the vacuum degree reaches ≤10-2Pa, start the lifting mechanism 11 to drive the mold 9 to the designated position in the melting chamber 7;

[0035] In the second step, the melting coil 5 is energized to generate an alternating magnetic field to rapidly heat the alloy material. The heating power is 300KW for 25-35 minutes. The walls are not in contact, the casting coil 19 is started, and the heating power is 300KW for 5-10 minutes, whi...

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Abstract

According to the rapid casting cold crucible suspension furnace and the alloy smelting method, a smelting crucible water cooling box, a smelting coil, a smelting crucible and a casting coil are arranged in a smelting chamber, the smelting crucible water cooling box is welded to the smelting crucible, the smelting crucible water cooling box is connected with a guide rail of the smelting chamber, and the guide rail is welded to the smelting chamber; the smelting crucible water cooling box moves up and down along a guide rail of the smelting chamber, the smelting coil is connected with the smelting chamber through an insulating material, the casting coil is connected with the smelting chamber through an insulating material, the casting chamber is connected with a casting chamber furnace door, a smelting chamber furnace cover is arranged on the lower portion of the gate valve, and a to-be-fused alloy material is arranged in the smelting crucible. The invention has the advantages of rapid melting and casting functions, good mold filling, uniform melting component and stable quality, can be used for melting high-purity, easily-oxidized and refractory alloy, reduces the production cost, and is applied to the technical fields of high-purity active light alloy material preparation and casting precision forming.

Description

technical field [0001] The invention relates to a rapid casting cold crucible suspension furnace and an alloy melting method in the technical field of high-purity master alloy, high-purity target material, high-purity refractory metal, preparation of high-purity active light alloy material and casting precision forming technology, specifically relates to The smelting equipment and alloy smelting method for preparing high-purity materials and precision forming of castings by using dual power supply induction melting process in vacuum or argon environment. Background technique [0002] In smelting technology, vacuum induction smelting technology is a more advanced and common smelting technology. The smelting material is heated by electromagnetic induction. The vacuum environment eliminates the pollution of the atmosphere to the smelting material, and can prepare alloy products with higher purity. However, the crucible material will contaminate the melted material during the in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F27B14/10F27B14/06F27B14/04B22D25/00B22D27/04C22C1/02
CPCY02P10/25
Inventor 何永亮史昆严增男张鹏程刘新峰李万青
Owner SHENYANG RES INST OF FOUNDRY
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