Large-size sapphire crystal growing furnace

Abstract

The invention relates to a large-size sapphire crystal growing furnace. A seed crystal mounting room is arranged above a heating barrel; a vacuumizing assembly is communicated with the heating barrel; an inner cavity of the heating barrel is a sealed cavity; a hoisting motor is arranged above a bracket; a hoisting straight-line guide rail is arranged inside the bracket below the hoisting motor and is connected with the hoisting motor through a shaft coupler; the hoisting motor rotates to drive a slide block in the hoisting straight-line guide rail to hoist; a rotary motor fixing seat is arranged on the hoisting straight-line guide rail and is connected with the slide block in the hoisting straight-line guide rail; the rotary motor is mounted on the rotary motor fixing seat; a seed crystal mounting rod is connected with the rotary motor; an upper furnace cover and a lower furnace cover are respectively arranged at upper and lower ends of a double-layered water cooling barrel to form a sealed cavity; a crucible is arranged in the cavity and a heating system is arranged at the outer side of the crucible; and a seed crystal mounting rod stretches into the crucible of the heating barrel. The device disclosed by the invention realizes automatic control and operation, improves the seeding efficiency and enhances the seeding effect; and a large-size sapphire crystal can be produced by the large-size sapphire crystal growing furnace.

Description

technical field [0001] The invention relates to a sapphire crystal growing device, in particular to a large-sized sapphire crystal growing furnace. Background technique [0002] Sapphire is the main substrate material for manufacturing energy-saving light sources such as LEDs. With the continuous expansion of markets around the world, the current sapphire market is in short supply. Due to the current energy crisis, countries all over the world are looking for ways to save energy and generate energy. [0003] In the prior art, only 20KG-level sapphire crystal growth equipment can be produced at present, and large-scale sapphire crystals cannot be produced yet. However, the production capacity of commonly used equipment is low, and the manufacturing cost of sapphire is high, which can no longer meet the needs of the current market. Therefore, it is an urgent need to manufacture large-sized sapphire crystal growth furnaces. Contents of the invention [0004] The present inv...

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Problems solved by technology

[0004] The present invention is to solve the above problems and overcome the problem that large-size sapphire crystals cannot be produced in the prior art. The present invention provides a large-size sapphire crystal growth furnace to meet the needs

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