Novel magnesium alloy cast-rolling liquid transfer system device

Abstract

The invention particularly relates to a novel magnesium alloy cast-rolling liquid transfer system device, and belongs to the technical field of magnesium alloy plate and strip cast-rolling unit equipment. The novel magnesium alloy cast-rolling liquid transfer system device aims at the defects that in a magnesium alloy cast-rolling liquid transfer system at present, the liquid level of a front box is instable, system temperature and flow control is inaccurate, maintenance is difficult, cast-rolling plate and strip solidification is quite prone to being uneven, and segregation, serious edge cracks, material losses and the like are prone to being formed. The system device comprises a servo liquid transfer pump with a lower-end conical hole cavity, a self-adaptive heat expansion liquid transfer pipe, a combined front box and multifunctional top cover, a flow accurate control blocking device, a liquid level and temperature closed-loop control system and the like. The magnesium alloy cast-rolling liquid transfer system device is safe, economical and convenient to maintain, the system is in butt joint with a standing furnace and an inclined cast-rolling machine conveniently and fast, and accurate control over the temperature and flow in the system is achieved. Guarantees are provided for improving the material quality and the yield of cast-rolling magnesium alloy plates and strips and reducing the cost, and wide application prospects are achieved.

Description

technical field [0001] The invention belongs to the technical field of magnesium alloy strip casting and rolling mill equipment, and in particular relates to a novel magnesium alloy casting and rolling fluid transfer system device. Background technique [0002] Magnesium alloy casting and rolling is the organic unity of molten alloy solidification and rolling deformation, that is, the alloy liquid undergoes pressure processing and plastic deformation while crystallization and solidification, and completes the entire process from liquid metal to solid strip in a short period of time. It is a near-net forming, short-process magnesium alloy strip production technology. The traditional hot-rolling process is canceled, the production process is simplified, the production cycle is shortened, a large amount of energy is saved, equipment investment is reduced, and production costs are reduced. At the same time, the cast-rolled thin strip can obtain ideal microstructure and good mech...

AI Technical Summary

Problems solved by technology

However, these production lines have the following outstanding problems to varying degrees: ①The molten pool or the liquid level in the front tank is unstable, causing oxidation, combustion, and even explosion; ②Inaccurate temperature and casting flow control, resulting in uneven solidification of cast-rolled strips and easy formation of segregation quality defects such as severe edge cracks; ③ when the casting is completed or a sudden failure occurs, the molten magnesium in the casting system cannot be recovered, causing great safety hazards and material waste; ④ the front box is an integral structure, which is not easy to clean, and It is inconvenient to repair when the heat preservation and heating device breaks down.

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