JPH0419172B2 - - Google Patents
Info
- Publication number
- JPH0419172B2 JPH0419172B2 JP62322837A JP32283787A JPH0419172B2 JP H0419172 B2 JPH0419172 B2 JP H0419172B2 JP 62322837 A JP62322837 A JP 62322837A JP 32283787 A JP32283787 A JP 32283787A JP H0419172 B2 JPH0419172 B2 JP H0419172B2
- Authority
- JP
- Japan
- Prior art keywords
- mold
- glass
- guide
- cutting
- molding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B11/00—Pressing molten glass or performed glass reheated to equivalent low viscosity without blowing
- C03B11/06—Construction of plunger or mould
- C03B11/08—Construction of plunger or mould for making solid articles, e.g. lenses
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B21/00—Severing glass sheets, tubes or rods while still plastic
- C03B21/02—Severing glass sheets, tubes or rods while still plastic by cutting
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B7/00—Distributors for the molten glass; Means for taking-off charges of molten glass; Producing the gob, e.g. controlling the gob shape, weight or delivery tact
- C03B7/10—Cutting-off or severing the glass flow with the aid of knives or scissors or non-contacting cutting means, e.g. a gas jet; Construction of the blades used
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2215/00—Press-moulding glass
- C03B2215/70—Horizontal or inclined press axis
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2215/00—Press-moulding glass
- C03B2215/76—Pressing whereby some glass overflows unrestrained beyond the press mould in a direction perpendicular to the press axis
- C03B2215/77—Pressing whereby some glass overflows unrestrained beyond the press mould in a direction perpendicular to the press axis with means to trim off excess material
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32283787A JPH01164738A (ja) | 1987-12-22 | 1987-12-22 | 光学素子の成形装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32283787A JPH01164738A (ja) | 1987-12-22 | 1987-12-22 | 光学素子の成形装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01164738A JPH01164738A (ja) | 1989-06-28 |
| JPH0419172B2 true JPH0419172B2 (enrdf_load_stackoverflow) | 1992-03-30 |
Family
ID=18148158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP32283787A Granted JPH01164738A (ja) | 1987-12-22 | 1987-12-22 | 光学素子の成形装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01164738A (enrdf_load_stackoverflow) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03228836A (ja) * | 1990-01-31 | 1991-10-09 | Canon Inc | ガラス光学部品の製造方法 |
| US5322541A (en) * | 1991-03-28 | 1994-06-21 | Matsushita Electric Industrial Co., Ltd. | Method of producing glass blank |
| MY169095A (en) * | 2009-12-29 | 2019-02-18 | Hoya Corp | Manufacturing method of glass substrate for magnetic disk and sheet glass material for magnetic disk |
| CN106297833B (zh) | 2009-12-29 | 2019-03-08 | Hoya株式会社 | 磁盘用玻璃基板的制造方法以及磁盘用玻璃基板 |
| CN105355216B (zh) | 2010-03-31 | 2017-10-03 | Hoya株式会社 | 磁盘用玻璃基板和玻璃雏形的制造方法以及磁盘用玻璃基板和玻璃雏形 |
| JP2012160252A (ja) | 2011-01-31 | 2012-08-23 | Hoya Corp | 磁気ディスク用ガラス基板の製造方法 |
| JP5739552B2 (ja) * | 2011-12-29 | 2015-06-24 | Hoya株式会社 | 磁気ディスク用ガラスブランクの製造方法および磁気ディスク用ガラス基板の製造方法 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61180135U (enrdf_load_stackoverflow) * | 1985-04-29 | 1986-11-10 |
-
1987
- 1987-12-22 JP JP32283787A patent/JPH01164738A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01164738A (ja) | 1989-06-28 |
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