Panel-cooled submerged combustion melter geometry and methods of making molten glass
US-9505646-B2 · Nov 29, 2016 · US
Glass material manufacturing method and glass material manufacturing device
US2019202725A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2019202725-A1 |
| Application number | US-201916297771-A |
| Country | US |
| Kind code | A1 |
| Filing date | Mar 11, 2019 |
| Priority date | Jul 14, 2014 |
| Publication date | Jul 4, 2019 |
| Grant date | — |
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- Title
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- Abstract
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Abstract
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Provided is a method that can manufacture a glass material having excellent homogeneity by containerless levitation. With a block (12) of glass raw material held levitated above a forming surface (10a) of a forming die (10) by jetting gas through a gas jet hole (10b) opening on the forming surface (10a), the block (12) of glass raw material is heated and melted by irradiation with laser beam, thus obtaining a molten glass, and the molten glass is then cooled to obtain a glass material. Control gas is jetted to the block (12) of glass raw material along a direction different from a direction of jetting of the levitation gas for use in levitating the block (12) of glass raw material or the molten glass.
First claim
Opening claim text (preview).
1 . A glass material manufacturing method comprising the step of heating and melting a block of glass raw material by irradiation with laser light with the block of glass raw material held levitated above a forming surface of a forming die by jetting gas through a gas jet hole opening on the forming surface, thus obtaining a molten glass, and then cooling the molten glass to obtain a glass material, wherein a flow rate of the gas through the gas jet hole after the melting of the block of glass raw material is smaller than a flow rate of the gas through the gas jet hole before the melting of the block of glass raw material. 2 . The glass material manufacturing method according to claim 1 , wherein the flow rate of the gas through the gas jet hole is reduced before the block of glass raw material is completely melted. 3 . The glass material manufacturing method according to claim 1 , wherein the flow rate of the gas through the gas jet hole is increased after the irradiation of laser light is stopped.
Assignees
Inventors
Classifications
- C03B5/235Primary
Heating the glass (C03B5/02, C03B5/18, C03B5/225 take precedence) · CPC title
using gas · CPC title
Re-forming shaped glass (re-forming fibres or filaments C03B37/14) · CPC title
- C03B19/1005Primary
Forming solid beads (chemical aspects C03C12/00) · CPC title
by hot-pressing powders · CPC title
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- What does patent US2019202725A1 cover?
- Provided is a method that can manufacture a glass material having excellent homogeneity by containerless levitation. With a block (12) of glass raw material held levitated above a forming surface (10a) of a forming die (10) by jetting gas through a gas jet hole (10b) opening on the forming surface (10a), the block (12) of glass raw material is heated and melted by irradiation with laser beam, t…
- Who is the assignee on this patent?
- Nippon Electric Glass Co
- What technology area does this patent fall under?
- Primary CPC classification C03B5/235. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Thu Jul 04 2019 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).