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Cooling transitional joint for directional solidification equipment of electromagnetic cold crucible

A technology for cooling transition joints and electromagnetic cold crucibles, which is applied in the field of cooling transition joints, can solve the problems of longer initial solidification zone length and low effective utilization rate of high-temperature materials, and achieve the effect of increasing the contact area

Active Publication Date: 2015-06-10
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a cooling transition joint used in electromagnetic cold crucible directional solidification equipment, to solve the problem that the length of the initial solidification zone becomes longer and the high temperature material The problem of low effective utilization

Method used

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  • Cooling transitional joint for directional solidification equipment of electromagnetic cold crucible
  • Cooling transitional joint for directional solidification equipment of electromagnetic cold crucible
  • Cooling transitional joint for directional solidification equipment of electromagnetic cold crucible

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specific Embodiment approach 1

[0009] Specific implementation mode one: combine Figure 1-Figure 4 Describe this embodiment, the joint of this embodiment includes a cuboid 1 and a cylinder 2, the bottom end surface of the cuboid 1 and the upper end surface of the cylinder 2 are coaxially arranged and the two are connected to form one, the upper end surface of the cuboid 1 is along the center The line is provided with a trapezoidal groove 1-1, every two sides of the cuboid 1 are connected by an arc surface transition, and the outer surface of the cylinder 2 is provided with threads, and it is characterized in that each side of the cuboid 1 is provided with a square through hole 1 -2, the distances between the centers of the four square through holes 1-2 and the bottom surface of the cuboid 1 are equal, and the height h of the cuboid 1 1 10-1000mm, the width c of the square through hole 1-2 is 1-500mm, the height h of the square through hole 1-2 is 1-500mm, between the bottom end surface of the square through...

specific Embodiment approach 2

[0010] Specific embodiment 2: Description 1 of this embodiment with reference to the figures, the height h of the cylinder 2 of this embodiment 2 5-200mm, the diameter D of the cylinder 2 is 5-500mm, and this structure is used to connect the pull rod. Other implementation manners are the same as the specific implementation manner 1.

[0011] Working principle: the trapezoidal groove 1-1 on the joint is connected to the bottom bracket, and the outer surface of the cylinder 2 is provided with threads for connecting with the pull rod. The role of the bottom support is mainly reflected in two aspects: first, to undertake the molten drop of the raw material rod; second, to melt the upper end to increase the volume of the melt. When the holding time is over, start the drawing mechanism, the drawing rod moves down, and the material transfer rod enters the Ga-In alloy. The bottom of the transfer rod is stable at Ts, the temperature of the Ga-In alloy is Tr, and the height from the b...

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Abstract

A cooling transitional joint for directional solidification equipment of an electromagnetic cold crucible solves the problem that an initial solidification region is lengthened and the effective utilization rate of high-temperature materials is lowered during the process of preparing metal or alloy with high melting point by the aid of existing directional solidification equipment of the electromagnetic cold crucible. The cooling transitional joint comprises a cuboid and a cylinder, each side of the cuboid is provided with a square through hole, and distances from centers of the four square through holes to the bottom end face of the cuboid are the same. The height of the cuboid ranges from 10mm to 1000mm, the width of each square through hole ranges from 1mm to 500mm, and the distance from the bottom end face of each square through hole to the bottom end face of the cuboid ranges from 0mm to 40mm. The cooling transitional joint is used for connecting a sliding rod and a solidified ingot during cooling and directional solidification of liquid metal.

Description

technical field [0001] The invention relates to a cooling transition joint. Background technique [0002] At the beginning of the preparation of high-melting point metals or alloys by cooling and directional solidification of liquid metals in electromagnetic cold crucibles, it is necessary to melt the bottom material of the same material and accept the molten drops dropped after the raw material rods are melted (both electromagnetic induction melting) to form a molten pool, and the connection The connection between the pull rod and the bottom material is the joint. Under the traction of the drawing rod, the solidified ingot enters the liquid metal, thereby realizing forced cooling (such as figure 2 shown). In the short period of time at the beginning, the high melting point metal or alloy solidified ingot will not enter the liquid metal. Under the traction of the pull rod, the joint will first enter the liquid metal, and then the high melting point metal or alloy solidifie...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C30B11/00C30B28/06
Inventor 丁宏升燕云程王永喆陈瑞润郭景杰傅恒志
Owner HARBIN INST OF TECH
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