Tungsten crucible double-sleeve hoisting frame

Abstract

The invention relates to a tungsten crucible double-sleeve hoisting frame, which is characterized by comprising an inner sleeve (1) and an outer sleeve (2), wherein the inner sleeve (1) comprises a plurality of circular-arc plates (12) arranged on the same circumference and a lifting plate (11) connected to the top of the circular-arc plates (12); inward hook claws (13) are arranged at bottoms of the circular-arc plates (12); inner sleeve positioning rings (14) are fixed to inner walls on upper parts of the circular-arc plates (12); the outer sleeve (2) comprises a cylinder (22) and a support plate (21) which is fixedly connected to the top of the cylinder (22); an outer sleeve positioning ring (23) is fixedly connected to the outer wall on the upper part of the outer sleeve (2); and the lifting plate (11) is connected with the support plate (21) by a compression bolt (3). The tungsten crucible double-sleeve hoisting frame can be precisely positioned and controlled, and is difficult to crush, raw materials filled into a crucible still can be hoisted, the operation can be performed reliably for a long time, and the tungsten crucible can be better protected to ensure that a sapphire furnace runs safely and efficiently for a long time.

Description

technical field [0001] The invention relates to a tungsten crucible hoisting frame for a sapphire crystal growth furnace, in particular to a tungsten crucible double-sleeve hoisting frame for hoisting inside a sapphire crystal growth furnace, and belongs to the technical field of sapphire crystal growth furnace preparation. Background technique [0002] Sapphire is AL2O3 single crystal, which has the characteristics of high melting point, high hardness, good thermal conductivity, wide light transmission band, good electrical insulation, and strong acid and alkali corrosion resistance. Therefore, as an important technical crystal material, it is widely used in national defense, A series of high-tech technical fields such as military affairs and scientific research, as well as a large number of applications in civilian industries, such as light-emitting diodes, microelectronic circuits, optical sensors, optical waveguide devices and LED energy-saving fields. In 2016, the use o...

AI Technical Summary

Problems solved by technology

[0007] (1) The adjustment amount cannot be accurately controlled, and the crucible will fall off and break if it is not pressed tightly;

[0008] (2) The tungsten crucible is highly brittle and easily crushed after a period of use;

[0009] (3) After the crucible is filled with raw materials, the inner support structure cannot be used

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