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A horizontal box-type heating element for single crystal growth furnace in the preparation method of horizontal orientation zone melting and crystallization

A technology of horizontal orientation and heating element, which is applied in the direction of single crystal growth, single crystal growth, crystal growth, etc., and can solve the problems of heating and long-term resistance

Active Publication Date: 2017-09-26
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the cylindrical and cage-shaped heating elements in the UKAK-2 single crystal growth furnace produced by Donets, Ukraine, used in the preparation of rare earth-doped YAG single crystals and alumina-based eutectic ceramics horizontally oriented zone melting and crystallization It cannot meet the needs of the experiment, so a new type of horizontal box-type heating element is designed to complete the experiment
[0003] The existing zone melting method heating body is an induction coil, most of which are cylindrical and cage-shaped, which cannot withstand a long time, and all metals in the coil will be heated by induction. As the horizontal guide rail moves, the shape of the metal in the coil will change. Variations that are detrimental to consistent and steady heating

Method used

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  • A horizontal box-type heating element for single crystal growth furnace in the preparation method of horizontal orientation zone melting and crystallization
  • A horizontal box-type heating element for single crystal growth furnace in the preparation method of horizontal orientation zone melting and crystallization
  • A horizontal box-type heating element for single crystal growth furnace in the preparation method of horizontal orientation zone melting and crystallization

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specific Embodiment approach 1

[0013] Embodiment 1: A horizontal box-type heating element for a single crystal growth furnace in a preparation method of melting and crystallization in a horizontal orientation zone according to this embodiment, which includes an upper layer, a lower layer and a plurality of vertical tungsten rods 2, and the lower layer is arranged in parallel. Parallel tungsten rod one 1-1, parallel tungsten rod two 1-2, parallel tungsten rod three 1-3 and parallel tungsten rod four 1-4, the upper layer contains "U" shaped tungsten rod one 4-1, "U" ""-shaped tungsten rod two 4-2 and "U"-shaped tungsten rod three 4-3; among them, the two ends of "U"-shaped tungsten rod one 4-1 are respectively provided with connection point one 7-1 and connection point five 7-5 The ends of parallel tungsten rod two 1-2 are respectively provided with connection point two 7-2 and connection point six 7-6, and the two ends of parallel tungsten rod three 1-3 are respectively provided with connection point three 7-...

specific Embodiment approach 2

[0014] Specific embodiment two: the difference between this embodiment and specific embodiment one is: the anode tungsten rod 5 is composed of parallel tungsten rod five 5-1, parallel tungsten rod six 5-2, parallel tungsten rod seven 5-3 and 1 vertical Straight tungsten rods 2 are composed of five parallel tungsten rods 5-1, six parallel tungsten rods 5-2, seven parallel tungsten rods 5-3 and "U" shaped tungsten rods one 4-1 and "U" shaped tungsten rods Two 4-2 and "U" shaped tungsten rod three 4-3 are in the same plane, and parallel tungsten rod five 5-1 is located at the front end of the horizontal box-type heating element; one end of the parallel tungsten rod five 5-1 is an anode connector 7-17, the other end is connected with one end of parallel tungsten rod six 5-2, the other end of parallel tungsten rod six 5-2 is connected with one end of parallel tungsten rod seven 5-3, and the other end of parallel tungsten rod seven 5-3 is connected with One end of the vertical tungs...

specific Embodiment approach 3

[0015] Embodiment 3: The difference between this embodiment and Embodiment 1 is that parallel tungsten rod five 5-1, parallel tungsten rod six 5-2 and parallel tungsten rod seven 5-3 are vertically connected. Others are the same as in the first embodiment.

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Abstract

The invention discloses a horizontal box-type heating element for a single crystal growth furnace in a preparation method of melting and crystallization in a horizontal orientation zone, which relates to a horizontal box-type heating element for a single crystal growth furnace in a preparation method of melting and crystallization in a horizontal orientation zone. It includes an upper layer and a lower layer. The upper and lower layers jointly form a space with openings on the front and rear sides. The lower layer is 4 parallel tungsten tube bodies. The ends of each tungsten tube body are connected vertically to the bracket. The upper surface at the end of the pipe body is vertically connected to the upper layer through the bracket two respectively; most of its material is tungsten, and the material in the heating body can be heated after being energized. However, the improvement of the horizontal box-type heating element used in the single crystal growth furnace for the method of melting and crystallization in the horizontal orientation zone is mainly the change of the shape, changing from a cylindrical shape or a cage shape to a horizontal box type, which can partially solve the problem of the long-time heating element of the existing heating element. The defect that heating causes the heating element to deform and conform to the shape of the substance to be heated.

Description

technical field [0001] The invention relates to a heating element used in the preparation process of a large-size plate-like single crystal and eutectic, in particular to a horizontal box-type heating element used in a single crystal growth furnace for the preparation method of melting and crystallization in a horizontal orientation zone. Background technique [0002] Rare earth-doped YAG single crystal has good optical uniformity, high mechanical strength, stable physical and chemical properties, high thermal conductivity, thermal shock resistance, and can realize pulse and continuous laser operation at room temperature. Therefore, it has been widely used in military, industrial and medical fields. Alumina-based eutectic ceramics have excellent oxidation resistance, corrosion resistance and mechanical properties at high temperatures, which fully meet people's stringent requirements for high-temperature structural materials in the advanced aerospace field, and have great eng...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C30B13/20C30B29/28
Inventor 刘洋张明福赵业权聂颖
Owner HARBIN INST OF TECH