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Compensation type liquid metal cooling device for directional solidification and method

A liquid metal cooling and directional solidification technology, applied in the field of casting cooling, can solve the problems of liquid metal coolant overflow and waste, and achieve the effects of reducing the consumption of manpower, material and financial resources, flexible adjustment, and easy operation

Active Publication Date: 2022-01-11
XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the above-mentioned shortcomings of the prior art, the object of the present invention is to provide a liquid metal cooling device and method for compensating directional solidification, which can solve the problems caused by the cross-sectional difference between the casting formwork and the drawing rod during the directional solidification process. As the casting is pulled into the cooling medium, the liquid metal coolant overflows and wastes. By manually selecting the cross-sectional area that needs to be compensated, the cross-sectional difference between the drawing rod and the casting mold shell is compensated, thereby reducing the liquid metal cooling medium. Loss

Method used

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  • Compensation type liquid metal cooling device for directional solidification and method
  • Compensation type liquid metal cooling device for directional solidification and method
  • Compensation type liquid metal cooling device for directional solidification and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] The casting formwork for directional solidification used in the castings to be produced is a cylindrical formwork with a diameter of 5 mm.

[0044]Since the diameter of the drawing rod 2-1 itself is 5 mm, the difference between the diameter of the casting formwork and the section diameter of the drawing rod 2-1 is 0. During the pulling cooling process, as the casting mold shell is immersed in the liquid metal cooling liquid, the difference between the volume of the liquid metal cooling liquid immersed and drawn out is zero.

[0045] Therefore, before the drawing starts, all fastening nuts 3-2 between the bottom plate 2-3 and the compensation rod 3 should be selected to be loosened according to the cross-sectional difference, and as the drawing rod 2-1 is pulled downward, all the compensation rods 3 Do not move.

[0046] Since the difference between the volumes of immersion and withdrawal of the liquid metal cooling liquid is zero, the liquid metal cooling liquid will n...

Embodiment 2

[0048] The casting formwork for directional solidification used in the castings to be produced is a cylindrical formwork with a diameter of 7 mm.

[0049] Since the drawing rod 2-1 itself has a diameter of 5 mm, the difference between the casting formwork and the section diameter of the drawing rod 2-1 is 2 mm. During the drawing cooling process, as the casting mold shell is immersed in the liquid metal cooling liquid, there is a volume difference between the volumes immersed in and pulled out of the liquid metal cooling liquid.

[0050] Therefore, before the drawing starts, the fastening nut 3-2 between the 1# compensation rod and the 2# compensation rod and the bottom plate 2-3 should be selected according to the section difference, and the pull rod 2-1 is pulled down , 1# compensating rod and 2# compensating rod are pulled away from the liquid metal at the same time as the pull rod 2-1, and the other compensating rods do not move.

[0051] Due to the compensation of the di...

Embodiment 3

[0053] The casting formwork for directional solidification used in the castings to be produced is a cylindrical formwork with a diameter of 21 mm.

[0054] Since the diameter of the drawing rod 2-1 is 5mm, the difference between the casting formwork and the section diameter of the drawing rod 2-1 is 16mm. During the drawing cooling process, as the casting mold shell is immersed in the liquid metal cooling liquid, there is a volume difference between the volumes immersed in and pulled out of the liquid metal cooling liquid.

[0055] Therefore, before the drawing starts, the fastening nuts 3-2 between all the compensation rods and the bottom plate 2-3 should be selected and tightened according to the section difference. As the drawing rod 2-1 is pulled down, all the compensation rods 3 will Pull rod 2-1 draws away liquid metal simultaneously.

[0056] Due to the compensation of the difference in the volume of the immersion and withdrawal of the liquid metal coolant, the liquid ...

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Abstract

The invention belongs to the technical field of casting cooling, and particularly relates to a compensation type liquid metal cooling device for directional solidification. The device comprises a liquid metal cooling liquid container, a compensation rod capable of being manually detached and combined and a drawing rod with a compensation device. According to the compensation type liquid metal cooling device for directional solidification, the problem that waste is caused by overflow of liquid metal cooling liquid due to the fact that a cooling medium is pulled in along with a casting in the directional solidification process due to the section difference between a casting mold shell and a pull rod can be solved, the sectional area needing to be compensated is manually selected, and the cross section difference between the drawing rod and the casting mold shell is compensated, so that the loss of a liquid metal cooling medium is reduced.

Description

technical field [0001] The invention belongs to the technical field of casting cooling, in particular to a liquid metal cooling device and method for compensating directional solidification. Background technique [0002] With the increasing use of superalloys in modern industry, the position of directional solidification technology is becoming more and more important. The material is prepared by directional solidification technology, which can effectively control the growth orientation of grains, eliminate the transverse grain boundary, and greatly improve the longitudinal properties of the material. In the directional solidification technology, the temperature gradient and the solidification rate are two important parameters that affect the crystal structure and properties. Therefore, a large number of scholars are committed to increasing the temperature gradient to further promote the development of directional solidification technology. [0003] The innovation of direct...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D27/04B22C9/06
CPCB22D27/045B22C9/065
Inventor 张凯崔春娟刘跃王妍赵亚男武重洋
Owner XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY