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Titanium-based alloy induction melting bottom leakage type vacuum suction casting device and control method

A titanium-based alloy and vacuum suction casting technology, which is applied in the field of titanium-based alloy melting and suction casting, can solve the problems of difficult preparation, high safety hazards, and large workload, so as to eliminate safety hazards, reduce labor intensity and work efficiency. high effect

Inactive Publication Date: 2015-05-27
北京博瑞杰特科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the above problems, it is urgent to propose a new vacuum suction casting equipment for induction melting of titanium-based alloys to solve the existing requirements of low efficiency, high cost, complicated process, heavy workload and difficult preparation in the existing titanium-based alloy casting. High profile, long cycle time, potential safety hazards, etc.

Method used

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  • Titanium-based alloy induction melting bottom leakage type vacuum suction casting device and control method
  • Titanium-based alloy induction melting bottom leakage type vacuum suction casting device and control method
  • Titanium-based alloy induction melting bottom leakage type vacuum suction casting device and control method

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Embodiment 1

[0065] This embodiment provides a bottom-drain vacuum suction casting equipment for induction melting of titanium-based alloys, such as figure 1 and figure 2 As shown, the equipment includes a furnace body support 1 , an outer furnace body 2 supported on the furnace body support 1 , and a vacuum suction casting device 3 arranged in the outer furnace body 2 . The outer furnace body 2 is provided with an optical monitoring and temperature measuring device 4 for monitoring the temperature inside the outer furnace body 2 . There is a first vacuum port 22 on the side wall of the outer furnace body 2, and a vacuum unit is connected to the first vacuum port 22. When the furnace door 21 of the outer furnace body is closed, an airtight space is formed in the outer furnace body 2. Vacuuming can be carried out in the outer furnace body 2 through the vacuum unit.

[0066] In this embodiment, the furnace door 21 of the outer furnace body is arranged at the bottom of the outer furnace bo...

Embodiment 2

[0084] This embodiment provides a ceramic crucible for induction melting of a titanium-based alloy. The ceramic crucible includes a crucible body and an isolation layer attached to the inner surface of the crucible body.

[0085] In this embodiment, the material of the isolation layer contains yttrium oxide, which is very inert to titanium metal at high temperature and will not chemically react with it, and can isolate possible reactions with titanium metal during the smelting process. Advanced ceramic materials ensure the reliable smelting of titanium-based alloys. The material of the crucible body contains silicon dioxide, which can resist possible metal expansion and thermal stress during the melting process and ensure the strength of the crucible.

[0086]The size of the ceramic crucible is adjusted according to the actual amount of cast metal. The diameter of the inner cavity is usually 20 to 70 cm, preferably 30-60 cm, and the height is usually 40 to 150 cm, preferably 5...

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Abstract

The invention discloses a titanium-based alloy induction melting bottom leakage type vacuum suction casting device and a control method, relates to the technical field of titanium-based alloy melting suction casting and solves the problems of low efficiency, high cost, complicated technology and the like of an existing titanium-based alloy melting suction casting device. The titanium-based alloy induction melting bottom leakage type vacuum suction casting device provided by the invention can be used for carrying out vacuum induction melting on titanium-based alloy by adopting a ceramic crucible; since no any shielding effect works on an electromagnetic force by ceramic, all electromagnetic induction energy generated by an induction coil can totally act on titanium metal, energy saving and environment protection are realized, the utilization rate of metal raw materials is up to 60%-70%, and the metal cost is greatly reduced; an isolating layer is formed on the inner surface of a crucible body of the ceramic crucible, materials which are used for manufacturing the isolating layer comprise yttrium oxide, the yttrium oxide has good inertia on the titanium metal under high temperature and can be used for isolating ceramic materials which can react with the titanium metal during a melting process, and titanium-based alloy melting is enabled to be reliably proceeded.

Description

technical field [0001] The invention relates to the technical field of titanium-based alloy smelting suction casting, in particular to a bottom-drain vacuum suction casting equipment for titanium-based alloy induction melting and a control method thereof. Background technique [0002] The traditional titanium alloy melting process has undergone several stages of changes. The first is vacuum arc melting. The principle of this melting method is to use titanium ingots and water-cooled copper crucibles as positive and negative electrodes respectively, and to melt the titanium ingots through mutual discharge of a large amount of heat under high current conditions, thereby forming a molten metal in the crucible. The molten metal, and then complete the pouring. [0003] The second is vacuum induction melting. The principle is to wrap the induction coil outside the split-type water-cooled copper crucible. The electromagnetic force generated by the induction coil acts on the metal i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D18/06
CPCB22D18/06B22D18/08
Inventor 马旭东赵枫赵松
Owner 北京博瑞杰特科技发展有限公司
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