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Device for preparing semi-solid slurry

A semi-solid slurry and slurry technology, applied in the field of material processing, can solve the problems of inability to continuously prepare semi-solid slurry, continuous preparation of slurry, and inability to obtain uniform slurry, so as to save pulping costs, Simple structure and evenly distributed effect

Pending Publication Date: 2017-08-08
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the existing pulping method, there are problems of high cost, or long process, or the inability to continuously prepare slurry, or obtain uniform slurry. These problems are largely caused by the lack of suitable equipment for preparation.
For example, inclined plate overcurrent cooling to prepare semi-solid slurry has low equipment cost and convenient production, but only one kind of solid phase ratio and semi-solid slurry with good shape factor can be obtained; the equipment cost of double-helical shearing method is relatively high ; Although the electromagnetic stirring method is the current mainstream pulping method, the energy utilization rate is low, resulting in high production costs, and it cannot continuously prepare semi-solid pulp

Method used

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  • Device for preparing semi-solid slurry

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Embodiment 1

[0026]A device for preparing semi-solid slurry, including a melting furnace 1, a graphite plunger 2, a guide pipe 3, an air inlet pipe 4, a sealing cover I5, an upper drum 6, a cooling pipe 10, an intermediate heat insulating cylinder 12, and a pulley 13 , heating device 14, lower drum 15, center column 16, slurry collection funnel 17, motor 18, transmission belt 19, support 21, sealing cover II 22, air outlet pipe 24, valve 25; The bottom of the furnace 1 is provided with a guide tube 3, and the entrance of the guide tube 3 is provided with a graphite plunger 2, which is used to switch the guide tube 3 and control the speed at which the molten metal flows into the upper drum 6. The other end of the guide tube 3 extends Into the inside of the upper drum 6, the top of the upper drum 6 is provided with a sealing cover Ⅰ5, the air inlet pipe 4 is arranged on the top of the sealing cover Ⅰ5, and a cooling pipe 10 is arranged outside the upper drum 6, and the cooling pipe 10 is fixe...

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Abstract

The invention discloses a device for preparing semi-solid slurry, and belongs to the technical field of material processing. The device comprises a smelting furnace, a graphite plunger, a flow guiding pipe, an air inlet pipe, a sealing cover I, an upper rotary drum, a cooling pipe, a middle heat insulation pipe, a belt wheel, a heating device, a lower rotary drum, a center column, a slurry collecting funnel, a motor, a conveying belt, a support, a sealing cover II, an air outlet pipe and a valve. The device controls the nuclear number through control over the melt temperature, the pouring speed, the rotating speed of the rotary drums and the melt rapid nucleation cooling speed, and the solid phase rate of the semi-solid slurry is controlled through the heating temperature of the lower rotary drum and the center column. The device is simple in structure, machining is easy, cost is low, the semi-solid slurry with the needed solid phase fraction can be continuously prepared, and very good application prospects are achieved.

Description

technical field [0001] The invention discloses a device for preparing semi-solid slurry, which belongs to the technical field of material processing. Background technique [0002] Metal semi-solid slurry refers to a solid-liquid mixed slurry in which nearly spherical solid phase particles are evenly suspended in liquid metal mother liquor. The forming process using metal semi-solid slurry is called semi-solid forming. Semi-solid forming technology has received extensive attention and in-depth research since it was discovered by Professor Flemings of the Massachusetts Institute of Technology in the 1970s. Compared with traditional casting, semi-solid forming technology has a certain volume fraction of solid phase in its liquid phase, which has small latent heat of crystallization and small solidification shrinkage. Therefore, the formed parts have compact structure, high mechanical properties, high dimensional accuracy, can realize near-net forming, have little thermal impa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D1/00B22D17/30
CPCB22D1/00B22D17/007B22D17/30
Inventor 李璐耿保玉周荣锋李永坤肖帆王坦蒋业华
Owner KUNMING UNIV OF SCI & TECH
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