Electronic beam cold hearth furnace

Abstract

The invention relates to an electronic beam cold hearth furnace, belonging to the field of metal smelting, especially rare metal smelting. According to the electronic beam cold hearth furnace, one side of a vacuum melting chamber system which is taken as a basal body is connected with a horizontal feeding system, a vacuum system is arranged on the other side of the vacuum melting chamber system, three sets of electronic gun systems and a vertical scrap feeding system are arranged at the top of the melting chamber, a cold hearth system and a protective hood are arranged inside the melting chamber, a crystallizer system is arranged at the bottom of the melting chamber, and a continuous ingot dragging system is arranged at the bottom of the crystallizer system; a cooling system is used for cooling structures and components needing to be cooled. The electronic beam cold hearth furnace can be widely applied to melting of reactive metals including titanium, zirconium and the like, refractory metals including tungsten, tantalum, niobium and the like, and special steel; the electronic beam cold hearth furnace has the characteristics of being high in melting vacuum degree, and good in purification effect; the electronic beam cold hearth furnace can be used for producing products, which cannot be produced by other equipment, especially on the aspects of aviation and aerospace needing titanium and titanium alloy materials; titanium residues can be recovered and molten into a titanium material, meeting the using requirements, through the electronic beam cold hearth furnace, and the energy consumption can be saved by 20%-30% in the process compared with that of a traditional technological process.

Description

technical field [0001] The invention belongs to the technical field of metal smelting, in particular to special equipment for smelting rare metals. Background technique [0002] With the rapid development of national aviation, aerospace and navigation, the demand for high-quality titanium materials has also increased rapidly; due to defects such as inclusions and segregation in traditional vacuum consumable electric arc furnaces, titanium materials can no longer meet the demand, and electron beam cooling The bed furnace can solve this problem very well; only a few developed countries have developed electron beam cooling bed furnaces before, but the price is very expensive, and the technology blockade seriously restricts the development of related industries in our country. Beam cooling bed furnace technology and equipment. [0003] Most of the currently used electron beam cold bed furnaces are hot cathode electron guns, and the air extraction system of the electron gun cham...

AI Technical Summary

Problems solved by technology

Due to the difference in vapor pressure, the volatilization speed of alloying elements is also very different, which is not conducive to the production of titanium alloy ingots

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