Continuous casting and continuous extrusion device and production method for metal

Abstract

The invention discloses a continuous casting and continuous extrusion device and a production method for a metal, wherein the device comprises a melting furnace, a maintaining furnace, a continuous casting machine, a continuous extruding machine, an anti-oxidation thermal insulation device and a loop device. In the production method, molten metal is poured into a molten metal pond of the continuous casting machine, and the molten metal is cooled and solidified in a compulsive water-cooling crystallizer; a dragger pulls out a casting blank from the crystallizer with certain speed; and the casting blank pulled out is conveyed into the continuous extrusion machine set after passing through the anti-oxidation thermal insulation device. In the method, since the cast metal with afterheat can becontinuously extruded in a direct way, at this moment, the metal has higher plasticity and lower resistance to deformation, greater deformation can be realized with less energy, and energy can be saved; and the device and the method provided by the invention are particularly suitable for the metal and alloy thereof which need to be preheated before continuous extrusion, so that types of alloys processed by continuous extrusion are increased. With the device and the method, multiple work procedures are combined, short flow is implemented, production cycle can be shortened by more than 50%, andproduction efficiency is improved.

Description

technical field [0001] The present invention relates to a continuous casting and extrusion equipment and production method for metals, in particular to non-ferrous metals and their alloys that need to be preheated before continuous extrusion; Metals and their alloys that can be continuously extruded. Background technique [0002] Most of the metals used in continuous extrusion production are produced by continuous casting or continuous casting and rolling technology. In the traditional continuous extrusion production technology, the rod material does not need to be preheated, and it is directly fed into the extrusion machine at room temperature. For some special difficult-to-extrude alloys, it needs to be preheated to a certain temperature before continuous extrusion to carry out effective production. Chinese patents ZL200710011713.8 and ZL201010234073.9 both proposed that special billets should be processed before continuous extrusion. Preheating; also for some brittle bil...

AI Technical Summary

Problems solved by technology

[0002] Most of the metals used in continuous extrusion production are produced by continuous casting or continuous casting and rolling technology. In the traditional continuous extrusion production technology, the rod material does not need to be preheated, and it is directly fed into the extrusion machine at room temperature. For some special difficult-to-extrude alloys, it needs to be preheated to a certain temperature before continuous extrusion to carry out effective production. Chinese patents ZL200710011713.8 and ZL201010234073.9 both proposed that special billets should be processed before continuous extrusion. Preheating; also for some brittle billets that are difficult to coil after continuous casting or continuous casting and rolling, it needs to be sawed to a certain length in the form of straight material for continuous extrusion, resulting in frequent feeding and excessive Extrusion joints, affecting the quality of continuous extrusion products

Although the continuous casting and extrusion process effectively combines casting technology and extrusion technology, the liquid and solid phase composite process of the alloy should be considered in the extrusion process, so that the continuous casting and extrusion (castex) products are mainly concentrated in aluminum, magnesium and Its alloys, and the continuous casting and extrusion process has the disadvantages of difficult control of process conditions, uneven distribution of product cross-sectional structure, product stickiness, and low productivity, which seriously restricts the application of continuous casting and extrusion

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