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
- 238000005520 cutting process Methods 0.000 claims description 111
- 239000011521 glass Substances 0.000 claims description 97
- 238000000465 moulding Methods 0.000 claims description 71
- 239000012530 fluid Substances 0.000 claims description 51
- 238000003825 pressing Methods 0.000 claims description 32
- 230000003287 optical effect Effects 0.000 claims description 29
- 238000010438 heat treatment Methods 0.000 claims description 18
- 238000009529 body temperature measurement Methods 0.000 claims description 2
- 239000000047 product Substances 0.000 description 44
- 238000000034 method Methods 0.000 description 27
- 239000006060 molten glass Substances 0.000 description 16
- 239000011295 pitch Substances 0.000 description 12
- 239000000463 material Substances 0.000 description 8
- 238000002844 melting Methods 0.000 description 7
- 230000008018 melting Effects 0.000 description 7
- 230000002093 peripheral effect Effects 0.000 description 5
- 230000007547 defect Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000013459 approach Methods 0.000 description 3
- 239000012467 final product Substances 0.000 description 3
- 239000005304 optical glass Substances 0.000 description 3
- 230000001590 oxidative effect Effects 0.000 description 3
- 238000005498 polishing Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical group [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000009477 glass transition Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000012805 post-processing Methods 0.000 description 2
- 238000003303 reheating Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000002123 temporal effect Effects 0.000 description 2
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 description 2
- 206010049040 Weight fluctuation Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000005499 meniscus Effects 0.000 description 1
- 239000006082 mold release agent Substances 0.000 description 1
- 239000012778 molding material Substances 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
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)
- Moulds For Moulding Plastics Or The Like (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (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 (ko) | 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 (ko) |
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 |
| SG177345A1 (en) | 2009-12-29 | 2012-02-28 | Hoya Corp | Glass substrate for magnetic disk and manufacturing method thereof |
| MY167830A (en) * | 2009-12-29 | 2018-09-26 | Hoya Corp | Glass substrate for magnetic disk and manufacturing method thereof |
| CN102859595B (zh) | 2010-03-31 | 2016-01-20 | 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 (ko) * | 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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