Over-flow type maguesium alloy melt quantitative transfering apparatus

Abstract

The invention relates to an overflow type magnesium alloy fused mass fix quantity transferring device that sets quantifying room in crucible, which forms overflow system with material transferring pipeline. The invention decreases the contact area with air in the transferring process, and the protecting gas is supplied through simple pore and would not easy to make melt oxidize or material jamming and decrease gas supplying and thermal losing. The transferring efficiency would be improved.

Description

technical field [0001] The invention relates to an overflow device for quantitatively transferring magnesium alloy melt from melting equipment to other equipment, and belongs to the technical field of material processing equipment. Background technique [0002] In the field of magnesium alloy forming, it is usually necessary to transfer the high-temperature magnesium alloy melt from its melting and holding equipment to other equipment such as die-casting machines and rolling mills. During the transfer process of the melt, not only requires constant temperature, stable flow, no oxidation, but also requires accurate quantification, efficient transfer process and simple equipment maintenance. [0003] The current quantitative transfer devices for magnesium alloy melt are mainly divided into pneumatic type and pump type. Pneumatic transfer device fills the surface of the magnesium alloy melt in the closed crucible with a certain pressure of inert gas, and uses the gas pressure ...

AI Technical Summary

Problems solved by technology

Pneumatic transfer device fills the surface of the magnesium alloy melt in the closed crucible with a certain pressure of inert gas, and uses the gas pressure to press the melt into other equipment; its disadvantage is that it needs a pneumatic device, the equipment structure is complicated, and because the crucible The airtightness makes it impossible to clean the scum on the surface of the melt, and the maintenance of the equipment is inconvenient

The pump-type device uses a vane-type injection pump to lift and pump the magnesium alloy melt directly from the crucible to the delivery pipe. Under the action of gravity, the melt flows freely into other equipment along the downward-sloping delivery pipe; the pump The disadvantage of the transfer device is that the inner wall of the feeding pipe is in direct contact with the outside air during the time interval between two melt transfers, and the remaining magnesium alloy melt is easy to oxidize and burn, resulting in blockage; Gas needs multiple vent holes to pass through the entire feeding pipe, and the gas consumption is relatively large; the protective gas is easily involved in the magnesium alloy melt to cause pollution, and the heat loss of the feeding pipe is relatively large; at the same time, the transferred melt needs to be transferred from the feeding pipe The top of the material tube flows all the way to the bottom material tube mouth, the flow stroke is long, and the transfer efficiency is not high

Images