Rapid vacuum induction casting electric furnace

Abstract

The invention discloses a rapid vacuum induction casting electric furnace comprising a rack, wherein a vacuumizing system, a water cooling system and a medium frequency power supply are arranged on the rack. The electric furnace is characterized in that the rack is provided with a casting furnace, wherein the casting furnace is composed of an inspection microscope base, a base, an insulated furnace tube and an inductor copper pipe which is helically preinstalled in the insulated furnace tube; the inspection microscope base is hermetically connected with a vacuum pipeline of the vacuumizing system; the inspection microscope base is provided with an inspection microscope; the two ends of the inductor copper pipe are provided with a water inlet and a water outlet respectively and are respectively led out via the insulated furnace tube; the section, corresponding to the middle part of the casting furnace, of the inductor copper pipe is electrically connected with the medium frequency power supply; a reciprocating hoisting mechanism is arranged below the casting furnace on the rack; and the upper end of the reciprocating hoisting mechanism is provided with a tray. The electric furnace has the following advantages: smelting and casting can be carried out simultaneously, the yield of cast products is high and the product percent of pass can reach more than 85%, so the electric furnace is especially applicable to casting products with complex shapes; the casting time is short and the production efficiency is high; and the product density is high and the product quality is good.

Description

technical field [0001] The invention belongs to melting and casting equipment, in particular to a vacuum induction rapid melting and casting electric furnace. Background technique [0002] The existing vacuum induction melting electric furnace is composed of a double-layer metal furnace shell, a crucible, an inductor and a mould, a vacuum system on one side of the metal furnace shell, and a vacuum system on the other side of the metal furnace shell. The rotating electrode and the intermediate frequency power supply connected with the rotating electrode are composed. The problems of this kind of melting electric furnace are: 1. The mold needs to be heated to a suitable casting temperature before being put into the metal furnace shell. The middle mold will have a large heat loss, so the temperature of the mold will drop greatly after the raw materials are smelted into molten steel, resulting in a low yield when casting products with complex shapes, and the product pass rate c...

AI Technical Summary

Problems solved by technology

The problems of this kind of melting electric furnace are: 1. The mold needs to be heated to a suitable casting temperature before being put into the metal furnace shell. The middle mold will have a large heat loss, so the temperature of the mold will drop greatly after the raw materials are smelted into molten steel, resulting in a low yield when casting products with complex shapes, and the product pass rate can only reach 45%. High cost; 2. Because it is smelted first and then casted, it generally takes 90 minutes to cast a furnace of steel for smelting and casting, and the production efficiency is low; and because the crucible is manually controlled to turn over during casting, it is difficult to accurately control the casting amount, so the product density of casting Poor, low product quality

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