Thermal mold casting method

Abstract

The invention provides a thermal mold casting method. The thermal mold casting method is characterized by comprising the following steps of: heating a casting mold by a heater, or heating the casting mold by utilizing heat conducted by a metal melt before entering the casting mold so as to maintain the temperature of the casting mold to be in the range lower than the temperature of a solid phase line of metal and higher than the cooling temperature of the casting mold; carrying out forced cooling on the metal by a cooler arranged near an outlet of the casting mold; and drawing a metal casting blank by using a traction mechanism. The thermal mold casting method provided by the invention has the advantages that the application range is wide, the promotion value is very large, high-quality metal casting blanks with excellent performance, good surface smoothness, high size accuracy, high compactness, more uniform components, columnar crystal parallel or approximately parallel to the jiggering direction in the metal and isometric crystal concurrent microstructures on the surface layer of the metal can be produced with low energy consumption and high efficiency, and the subsequent plastic processing with a large screw-down rate can be carried out according to the need.

Description

technical field [0001] The invention belongs to the technical field of metal casting, and in particular provides a warm mold casting method. Background technique [0002] Casting plays a pivotal role in the production of metals. With the continuous increase of metal materials and product varieties, the rapid expansion of application fields, the rapid development of high-tech and the improvement of people's living standards, the world is facing the current situation of environmental degradation, resource and energy shortages, and the energy saving of metal casting process The requirements for consumption reduction, short process, high efficiency, low cost and slab quality are getting higher and higher. [0003] The casting mold is a container for turning liquid metal into solid metal in casting and obtaining the required shape of the slab. It is the key component and "heart" in casting and plays an important role in the quality and output of the slab. At present, the molds...

AI Technical Summary

Problems solved by technology

Since the temperature of the low-heat mold of warm mold casting is lower than the temperature of the heated mold and the two-phase zone mold, but higher than the temperature of the cooled mold, it can solve the problems produced by traditional continuous casting, semi-continuous casting and semi-solid casting methods. The surface finish, quality and performance of the slab are poor, the hot continuous casting method has low production efficiency and high energy consumption, it is difficult to produce a large cross-section slab, and it is easy to leak. The directional solidification method has low production efficiency and high energy consumption. The length is limited, the output is low, the energy consumption of the two-phase zone casting method is high, the casting speed cannot be too fast, and the semi-solid casting and two-phase zone casting methods cannot be used for the preparation of pure metals and eutectic alloys, etc.

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