Device and method for counter-gravity casting of solidification process controlled titanium-based alloy

Abstract

The invention relates to a device and a method for the counter-gravity casting of solidification process controlled titanium-based alloy. The device comprises a smelting system and a suction casting system, wherein casting mold heaters are mounted on the inside surface of an upper furnace body of the suction casting system; liquid riser tube heaters are fixedly arranged on the inside surface of a transition chamber between the upper furnace body and a lower furnace body. According to the device and the method, during counter-gravity casting, ceramic casting molds are subjected to heating and heat preservation through induction heating devices of the upper furnace body, so that the pouring temperature of the ceramic casting molds is greatly increased, the fluidity of titanium-based alloy melt is improved, and also, the complete mold filling of titanium-based alloy liquid metal is realized; through adjusting the power of the casting mold heaters, the change of different cast part cooling speeds in the range between 1,400 DEG C and the room temperature can be realized, the aims of controlling the cooling speed and solidification path of cast parts is achieved, thus, alpha crystal grains are spheroidized, and the cast parts with excellent tissue uniformity are obtained.

Description

technical field [0001] The invention relates to an anti-gravity casting device and its technical field, in particular to a titanium-based alloy anti-gravity casting method and suction casting system with controllable solidification process. Background technique [0002] Precision casting is an advanced near-net-shape casting process, which has been applied in many fields, and is especially suitable for the forming of complex-shaped and thin-walled components. As a method of precision casting, anti-gravity casting is conducive to the smooth filling of molten metal, positive pressure solidification, and excellent feeding effect. The castings produced by it have the characteristics of accurate size, high yield, good mechanical properties and high internal quality. , Generally, it can be applied without processing or with a little processing, which can save a lot of metal and machining devices. The anti-gravity production device has high efficiency and is easy to realize the me...

AI Technical Summary

Problems solved by technology

[0007] In order to overcome the disadvantages of uncontrollable mold temperature, coarse and uneven casting structure, and easy cracking of castings in the existing titanium-based alloy casting technology, the present invention proposes a titanium-based alloy anti-gravity casting device with controllable solidification process and casting method

Images