Antimicrobial glass compositions, glasses and polymeric articles incorporating the same
US-2018317496-A1 · Nov 8, 2018 · US
Glass material manufacturing method and glass material manufacturing device
US11059735B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11059735-B2 |
| Application number | US-201916297772-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 11, 2019 |
| Priority date | Jul 14, 2014 |
| Publication date | Jul 13, 2021 |
| Grant date | Jul 13, 2021 |
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- Title
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- Abstract
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- Assignees and inventors
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- First independent claim
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Abstract
Official abstract text for this publication.
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 ( 10 a ) of a forming die ( 10 ) by jetting gas through a gas jet hole ( 10 b ) opening on the forming surface ( 10 a ), 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 melting step of placing a block of glass raw material on a forming surface of a forming die, melting the block of glass raw material by irradiating the block of glass raw material with laser light while jetting gas through a gas jet hole opening on the forming surface, thus obtaining a molten glass, and then homogenizing the molten glass; and a cooling step of cooling the molten glass, wherein the irradiation with the laser light is started with the block of glass raw material in contact with the forming surface and the block of glass raw material is then levitated above the forming surface by the gas. 2. The glass material manufacturing method according to claim 1 , wherein the gas is jetted so that the block of glass raw material starts being levitated when or before the melting of the block of glass raw material is completed. 3. The glass material manufacturing method according to claim 1 , wherein a flow rate of the gas is gradually increased until the block of glass raw material starts being levitated. 4. The glass material manufacturing method according to claim 1 , wherein a flow rate of the gas is stepwise increased until the block of glass raw material starts being levitated. 5. The glass material manufacturing method according to claim 1 , wherein the gas starts being jetted concurrently with the start of irradiation with the laser light. 6. The glass material manufacturing method according to claim 1 , wherein the gas starts being jetted after the start of irradiation with the laser light.
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
- C03B5/235Primary
Heating the glass (C03B5/02, C03B5/18, C03B5/225 take precedence) · CPC title
by hot-pressing powders · CPC title
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Frequently asked questions
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- What does patent US11059735B2 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 ( 10 a ) of a forming die ( 10 ) by jetting gas through a gas jet hole ( 10 b ) opening on the forming surface ( 10 a ), the block ( 12 ) of glass raw material is heated and melted by irradiati…
- 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 Jul 13 2021 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).