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Water-cooled mold

A water-cooled, mold technology, used in manufacturing tools, glass manufacturing equipment, glass molding, etc., can solve problems such as reducing economic benefits, thermal damage, and failure of the shape of quartz glass crucibles, and achieve the effect of reducing the number of

Inactive Publication Date: 2009-12-30
JAPAN SUPER QUARTZ CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although carbon is more heat resistant than stainless steel, it can suffer heat damage due to oxidative consumption if used at higher temperatures for extended periods of time
The problem is that a thermally damaged mold leads to the failure of the shape of the quartz glass crucible and therefore the entire expensive mold has to be replaced with a new mold, which significantly reduces the economic efficiency

Method used

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  • Water-cooled mold
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Examples

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Embodiment Construction

[0022] exist figure 1 A typical structural example of a water-cooled mold according to the present invention is shown in .

[0023] The shown water-cooled mold 10 is a water-cooled mold for manufacturing quartz crucibles and mainly includes an outer mold part 11 and an inner mold part 12 .

[0024] The outer mold part 11 is provided inside it with a gap for cooling water to flow and is made of a heat-conductive metal or alloy material, and a water-cooling jacket is mentioned as an example thereof. As the material of the outer mold portion 11, a thermally conductive and corrosion-resistant metal or alloy material having excellent cooling capability, including, for example, austenitic stainless steel, atmospheric corrosion-resistant steel, titanium, and the like is preferable.

[0025] The inner mold part 12 is closely arranged on the inner surface of the outer mold part and is made of heat-resistant material such as carbon material, which constitutes the water-cooled mold 10 i...

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PUM

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Abstract

A water-cooled mold for the production of a quartz crucible provided in its interior with a space for flowing of cooling water comprises an outer mold section made from a heat-conductive metal or alloy material and an inner mold section closely arranged to an inner surface of the outer mold section and made from a heat-resistant material.

Description

technical field [0001] The present invention relates to a water-cooled mold for manufacturing a quartz crucible, and more particularly, to a water-cooled mold with an optimal mold structure. Background technique [0002] The quartz glass crucible is used to pull silicon single crystal as a semiconductor material, silicon crystal as a solar battery material, and the like. For example, single crystal silicon is mainly produced by melting a polycrystalline silicon lump (polycrystalline silicon lump) charged in a quartz glass crucible by heating to form a silicon melt, and then dipping a seed crystal into the silicon melt in and lifted by it. Although silicon crystal as a solar cell material has a lower single-crystallinity than single-crystal silicon as a semiconductor material, it is produced by the same pulling method. [0003] A rotating mold method is known as a method of manufacturing quartz glass crucibles. In this method, a rotatable bowl-shaped mold is used, and quar...

Claims

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Application Information

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IPC IPC(8): C03B20/00
CPCC03B19/095
Inventor 志满津敦
Owner JAPAN SUPER QUARTZ CORP