Drawing vacuum melting furnace capable of continuous molding and discharging

Abstract

The invention discloses a drawing type vacuum smelting furnace with continuous forming and discharging functions. The drawing type vacuum smelting furnace is characterized in that the shapes of the cross sections of discharging pipes are set according to the shape of a silicon sectional material needing to be obtained, drawing rods move downwards along the discharging pipes so as to suck a moltenliquid in a crucible, the liquid is driven to gradually fill the discharging pipes and flow downwards, when the liquid flows to the position where a water cooling box is located, the liquid is forcedto be cooled by the water cooling box, the liquid is solidified in a short time when the liquid passes through a crystallization chamber, and finally, the solidified liquid is guided out from the bottom ends of the discharging pipes along with the drawing rods so as to obtain the industrial silicon material with the specified cross section shape. According to the drawing type vacuum smelting furnace, two sleeves which are distributed up and down are arranged below each discharging pipe, the two sleeves are controlled to alternately move up and down in the respective forming range, then uninterrupted continuous drawing of the silicon material can be realized, the silicon material smelted in the crucible is made into a complete and continuous integral structure once, and the automation degree and the finished product integrity are greatly improved.

Description

technical field

[0001] The invention relates to the field of vacuum smelting furnaces, in particular to a drawing-type vacuum smelting furnace capable of continuous molding and discharging. Background technique

[0002] Vacuum smelting refers to a special smelting technology that smelts under vacuum conditions. It mainly includes vacuum induction melting, vacuum arc remelting and electron beam melting. With the rapid development of modern science and technology, especially with the rapid progress of aerospace, ocean development, energy development and electronic industry, there are higher and higher requirements for the variety, output and especially quality of metal materials or non-metal materials . Vacuum smelting needs to be carried out in a vacuum smelting furnace. For the smelting of industrial silicon, castings are obtained by casting in molds after smelting. However, this method cannot directly obtain profiles and can only meet the needs of existing silicon bricks....

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