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A quartz crucible forming mold

A technology for forming molds and quartz crucibles, applied in glass forming, manufacturing tools, glass manufacturing equipment, etc., can solve the problems of inability to use high-quality domestic quartz sand, difficult to remove metal impurities, poor high temperature resistance of molds, etc. Heat loss, tight bonding, improved vacuum effect

Inactive Publication Date: 2017-09-29
海盐华星标准件模具厂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current melting molds mainly use graphite molds and steel molds. The common problems are as follows: ①The melting temperature is low, and it is difficult to remove metal impurities in the raw materials; Poor high temperature resistance; ③The service life of the mold is short, and each graphite mold can melt about 200 crucibles, while the steel mold mold cast with pig iron can only reach about 600; Low domestic quartz sand, can only rely on expensive imported quartz sand; ⑤ long melting time, low production efficiency; ⑥ high energy consumption, heavy burden of electricity bills

Method used

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  • A quartz crucible forming mold
  • A quartz crucible forming mold
  • A quartz crucible forming mold

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Such as figure 1 , figure 2 with image 3 As shown, a quartz crucible forming mold includes a metal alloy mold 1, an outer mold 2, a porous alloy base 3, a rotary table 4, and a rotating shaft 5. The outer layer of the metal alloy inner mold 1 is covered with an outer mold 2, The bottom of the metal alloy mold 1 is equipped with a porous alloy base 3, and the porous alloy base 3 is placed on a rotating table 4, and a rotating shaft 5 is arranged under the rotating table 4. Wherein, a cavity is formed between the metal alloy mold 1 and the outer mold 2, and a vacuum pipeline is installed on the rotary table, and the vacuum pipeline communicates with the cavity and passes through the outer mold 2 and the central hole of the metal alloy mold 1, the vacuum pipelines are assembled into a vacuum pipeline inside the rotating shaft 5 and connected to the external air pump.

[0028] When the mold is in use, the air pump first pumps air to the metal alloy mold system through ...

Embodiment 2

[0032] Such as figure 1 , figure 2 with image 3As shown, a quartz crucible forming mold includes a metal alloy mold 1, an outer mold 2, a porous alloy base 3, a rotary table 4, and a rotating shaft 5. The outer layer of the metal alloy inner mold 1 is covered with an outer mold 2, The bottom of the metal alloy mold 1 is equipped with a porous alloy base 3, and the porous alloy base 3 is placed on a rotating table 4, and a rotating shaft 5 is arranged under the rotating table 4. Wherein, a cavity is formed between the metal alloy mold 1 and the outer mold 2, and a vacuum pipeline is installed on the rotary table, and the vacuum pipeline communicates with the cavity and passes through the outer mold 2 and the central hole of the metal alloy mold 1, the vacuum pipelines are assembled into a vacuum pipeline inside the rotating shaft 5 and connected to the external air pump.

[0033] The metal alloy mold 1 is provided with a plurality of micropores.

[0034] The cold water ci...

Embodiment 3

[0039] Such as figure 1 , figure 2 with image 3 As shown, a quartz crucible forming mold includes a metal alloy mold 1, an outer mold 2, a porous alloy base 3, a rotary table 4, and a rotating shaft 5. The outer layer of the metal alloy inner mold 1 is covered with an outer mold 2, The bottom of the metal alloy mold 1 is equipped with a porous alloy base 3, and the porous alloy base 3 is placed on a rotating table 4, and a rotating shaft 5 is arranged under the rotating table 4. Wherein, a cavity is formed between the metal alloy mold 1 and the outer mold 2, and a vacuum pipeline is installed on the rotary table, and the vacuum pipeline communicates with the cavity and passes through the outer mold 2 and the central hole of the metal alloy mold 1, the vacuum pipelines are assembled into a vacuum pipeline inside the rotating shaft 5 and connected to the external air pump.

[0040] The metal alloy mold 1 is provided with a plurality of micropores.

[0041] The cold water c...

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Abstract

The invention discloses a mold for forming a quartz crucible, which comprises a metal alloy mold, an outer mold, a porous alloy base, a rotating table, and a rotating shaft. The outer layer of the metal alloy steel mold is covered with an outer mold. The metal alloy steel mold The bottom of the mold is equipped with a porous alloy base, and the porous alloy base is placed on a rotating table, and a rotating shaft is arranged under the rotating table. The present invention has the advantages of high strength, long service life, efficient use of heat energy, and reduced power consumption. Advantages, the invention increases the melting temperature, can quickly remove metal impurities in the raw material, solves the disadvantage that the raw material can only rely on imported quartz sand, and improves the tightness between particles through high-temperature melting, reducing the number of bubbles, The product quality is improved, the production cycle is shortened, the production efficiency is improved, the energy is fully saved, and the production cost is reduced.

Description

technical field [0001] The invention mainly relates to a quartz crucible production equipment for drawing single crystal silicon, in particular to a quartz crucible molding die. Background technique [0002] Monocrystalline silicon is the main material for converting solar energy and electrical energy. Crystalline silicon materials (including polycrystalline silicon and monocrystalline silicon) are the most important photovoltaic materials, with a market share of more than 90%, and will still be the mainstream material for solar cells for a long period of time in the future. High-purity monocrystalline silicon rods are the raw materials for monocrystalline silicon solar cells, and the purity of silicon is required to be 99.999%. [0003] Quartz crucible is a consumable container for pulling monocrystalline silicon, and one quartz crucible is used for each furnace of monocrystalline silicon produced. Quartz crucibles are a key necessity for monocrystalline silicon productio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03B20/00
CPCY02P40/57
Inventor 孙占喜李涛陈官元姚刚蔺崇召
Owner 海盐华星标准件模具厂
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