Method for producing glass material and apparatus for producing glass material
US-2018282197-A1 · Oct 4, 2018 · US
Glass material manufacturing method and glass material manufacturing device
US10773987B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10773987-B2 |
| Application number | US-201515316586-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 6, 2015 |
| Priority date | Jul 14, 2014 |
| Publication date | Sep 15, 2020 |
| Grant date | Sep 15, 2020 |
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- Title
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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).
The invention claimed is: 1. A glass material manufacturing method comprising: a step of heating and melting a block of glass raw material by irradiation with a laser beam with the block of glass raw material held levitated above a forming surface of a forming die by jetting a levitation 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 control gas is jetted to the block of glass raw material or the molten glass along a direction different from a direction of jetting of the levitation gas for use in levitating the block of glass raw material or the molten glass. 2. The glass material manufacturing method according to claim 1 , wherein the control gas is jetted during the process of melting the block of glass raw material. 3. The glass material manufacturing method according to claim 1 , wherein the control gas is jetted during the process of cooling the molten glass. 4. The glass material manufacturing method according to claim 1 , wherein at least one of position and attitude of the block of glass raw material or the molten glass is controlled by jetting the control gas to the block of glass raw material or the molten glass. 5. The glass material manufacturing method according to claim 4 , wherein the block of glass raw material is rotated by jetting the control gas to the block of glass raw material. 6. The glass material manufacturing method according to claim 4 , wherein the block of glass raw material is vibrated or oscillated by jetting the control gas to the block of glass raw material. 7. The glass material manufacturing method according to claim 4 , wherein positional change of the molten glass is restricted by jetting the control gas to the molten glass. 8. The glass material manufacturing method according to claim 1 , wherein the control gas is jetted to the block of glass raw material or the molten glass along a horizontal direction or from an upper diagonal position. 9. A device for manufacturing a glass material by heating and melting a block of glass raw material by irradiation with a laser beam with the block of glass raw material held levitated above a forming surface of a forming die by jetting a levitation gas through a gas jet hole opening on the forming surface, thus obtaining a molten glass, and then cooling the molten glass, the device comprising a control gas jetting portion operable to jet a control gas to the block of glass raw material along a direction different from a direction of jetting of the levitation gas for use in levitating the block of glass raw material or the molten glass.
Assignees
Inventors
Classifications
- C03B19/1005Primary
Forming solid beads (chemical aspects C03C12/00) · CPC title
using gas · CPC title
Re-forming shaped glass (re-forming fibres or filaments C03B37/14) · CPC title
by hot-pressing powders · CPC title
- C03B5/235Primary
Heating the glass (C03B5/02, C03B5/18, C03B5/225 take precedence) · CPC title
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- What does patent US10773987B2 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 C03B19/1005. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Sep 15 2020 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).