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Fusing device

A melting and melting tank technology, applied in glass manufacturing equipment, glass furnace equipment, manufacturing tools, etc., to achieve the effect of reducing streaks

Inactive Publication Date: 2011-05-04
OHARA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Especially when the molten glass is supplied by batch melting, since the raw materials are put in several times, it is easy to cause uneven heating process, or it is easy to cause uneven heating process in the melting container, which will cause damage to the glass preform. One of the reasons why the optical properties become unstable

Method used

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Experimental program
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Effect test

Embodiment Construction

[0060] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0061]

[0062] The glass molded product manufacturing apparatus of the present invention includes: a melting device 10 that melts and stirs raw materials to manufacture molten glass A; and a forming device 30 that shapes and cools molten glass A produced by the melting device 10 .

[0063] (melting device)

[0064] First, use figure 1 Next, the melting device 10 will be described. figure 1 It is a schematic diagram showing the cross section of the melting apparatus 10 of the present invention. Such as figure 1 As shown, the melting device 10 of the present invention includes: a melting tank 12, which is used to put in, melt, purify, and stir raw materials; a heating element 16, which is used to generate heat by energizing and supply heat to the melting tank 12; the guideway 20, one end of which is connected to the lowermost part of the melting tank 12, and the...

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PUM

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Abstract

The invention provides a fusing device, used to supply melten glass with high uniformity during the manufacture of glass preform with few melten glass flowing out per unit time. Inside the smelt tank 12, agitating vane 144 rotates, causing convection in melten liquid of melten glass A. Consequently, it diffuses part of ingredients remaining in melten glass A into all the melten glass A and get uniform melten glass A. However, as to temporarily homogeneous melten glass A which is in the melting state for a long time, it will cause stripes; part of the melten glass A containing stripes is sent to shearing-stirring chamber 124, shearing and stirring melten glass A, so as to shear the part of melten glass A containing nonuniform parts such as stripes more finely and get integrally uniform melten glass A.

Description

technical field [0001] The present invention relates to a melting device having a stirring device for uniformly stirring molten glass. Background technique [0002] Glass preforms (glass gobs) used for optical elements and the like are obtained by melting raw materials with a melting device and molding the obtained molten glass into a glass gob of an appropriate size. Here, as the melting method used in the production process of the glass preform, the continuous melting method and the batch melting method are well known. When continuous melting is performed, it is possible to continuously carry out raw material placement, melting, purification, and stirring in individual layers each having different functions, and thus is suitable for the case of mass production of glass preforms and the like. On the other hand, when batch melting is performed, raw materials are put in, melted, cleaned, and stirred in batches in a single tank, which is suitable for the case of producing gl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03B5/187C03B5/18
CPCC03B5/187C03B5/00C03B5/18C03B5/183
Inventor 中山彻青木哲也妹尾龙也
Owner OHARA