Crucible shaft for single crystal furnace
A single crystal furnace and crucible technology, which is applied in the field of photovoltaic solar energy, can solve the problems of easy damage and poor cooling effect, and achieve the effects of prolonging service life, preventing thread damage, and enhancing cooling effect
Inactive Publication Date: 2015-03-18
常州华腾合金材料有限公司
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- Application Information
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Problems solved by technology
The crucible shafts for single crystal furnaces in the prior art all adopt a conventional straight pipe jacket cooling structure, which has a poor cooling effect, and the top adopts a threaded structure on the outer peripheral surface, which is easily damaged during work
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[0009] Such as figure 1 As shown, a crucible shaft for a single crystal furnace includes a shaft body 1 and an inner tube 2 in the shaft body. A cooling passage 3 is provided in the wall of the shaft body 1, and one end of the cooling passage 3 is connected to the shaft body. The cooling interlayer 4 communicates, and the other end communicates with the water outlet 5 of the cooling interlayer 4 , and one end of the shaft body is provided with an internal thread hole for connecting the shaft of the graphite support rod.
[0010] The cooling passage is an annular channel, and the inner wall of the channel is uniformly provided with grooves.
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The invention belongs to the field of photovoltaic solar energy and particularly relates to a crucible shaft for a single crystal furnace. The crucible shaft for the single crystal furnace is used for the single crystal furnace for growing crystalline silicon. The crucible shaft for the single crystal furnace comprises a shaft body and an inner tube in the shaft body, wherein a cooling path is arranged in the wall of the shaft body, one end of the cooling path is communicated with a cooling interlayer of the shaft body while the other end of the cooling path is communicated with a water outlet of the cooling interlayer, and an inner threaded hole for connecting a graphite die-pin shaft is arranged at one end of the shaft body. The crucible shaft provided by the invention has the advantages that the thread is prevented from being damaged by virtue of the inner thread, and the cooling path and a groove in the path are arranged, so that the cooling effect is enhanced and the service life of the device is prolonged.
Description
technical field [0001] The invention belongs to the field of photovoltaic solar energy, in particular to a crucible shaft for a single crystal furnace, which is used for a single crystal furnace for growing crystalline silicon. Background technique [0002] Single crystal furnace is the necessary equipment in the process of converting polycrystalline silicon into single crystal silicon, and single crystal silicon is the basic raw material in photovoltaic power generation and semiconductor industry. As the key supporting material of the modern information society, single crystal silicon is one of the most important single crystal materials in the world. It is not only the main functional material for the development of computers and integrated circuits, but also the main functional material for photovoltaic power generation and utilization of solar energy. The function of the crucible shaft for single crystal furnace is as follows: during the silicon single crystal pulling pr...
Claims
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IPC IPC(8): C30B15/10C30B29/06
Inventor 秦青云
Owner 常州华腾合金材料有限公司