JPS5532722A - Removing method for glass invisible flaw - Google Patents

Removing method for glass invisible flaw

Info

Publication number
JPS5532722A
JPS5532722A JP10285778A JP10285778A JPS5532722A JP S5532722 A JPS5532722 A JP S5532722A JP 10285778 A JP10285778 A JP 10285778A JP 10285778 A JP10285778 A JP 10285778A JP S5532722 A JPS5532722 A JP S5532722A
Authority
JP
Japan
Prior art keywords
invisible
flaws
product
flaw
removing method
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.)
Granted
Application number
JP10285778A
Other languages
Japanese (ja)
Other versions
JPS567978B2 (en
Inventor
Keiji Kobayashi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=14338585&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=JPS5532722(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP10285778A priority Critical patent/JPS5532722A/en
Publication of JPS5532722A publication Critical patent/JPS5532722A/en
Publication of JPS567978B2 publication Critical patent/JPS567978B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To simply remove or reduce surface invisible flaws of a glass product by hot etching the product to remove invisible Griffith's flaws after which it is optionally cooled and contacted to an inert gas such as N2.
CONSTITUTION: A glass product is hot etched with an aq. soln. of 10% HF-10% H2SO4, optionally cooled, and contacted to an inert gas such as Xe, Ar, Kr, or N2 for 0.5W24 hr. By this method Griffith's flaws of the product can easily be removed or reduced to prevent breaking, mechanical deterioration, etc. of the product due to invisible flaws.
COPYRIGHT: (C)1980,JPO&Japio
JP10285778A 1978-08-25 1978-08-25 Removing method for glass invisible flaw Granted JPS5532722A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10285778A JPS5532722A (en) 1978-08-25 1978-08-25 Removing method for glass invisible flaw

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10285778A JPS5532722A (en) 1978-08-25 1978-08-25 Removing method for glass invisible flaw

Publications (2)

Publication Number Publication Date
JPS5532722A true JPS5532722A (en) 1980-03-07
JPS567978B2 JPS567978B2 (en) 1981-02-20

Family

ID=14338585

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10285778A Granted JPS5532722A (en) 1978-08-25 1978-08-25 Removing method for glass invisible flaw

Country Status (1)

Country Link
JP (1) JPS5532722A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006113142A (en) * 2004-10-12 2006-04-27 Nippon Sheet Glass Co Ltd Glass optical elemental and its manufacturing method
JP2017527517A (en) * 2014-09-05 2017-09-21 コーニング インコーポレイテッド Glass product and method for improving the reliability of glass product
US10813835B2 (en) 2012-11-30 2020-10-27 Corning Incorporated Glass containers with improved strength and improved damage tolerance
US11963927B2 (en) 2020-08-18 2024-04-23 Corning Incorporated Glass containers with delamination resistance and improved damage tolerance

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58166671U (en) * 1982-04-30 1983-11-07 スタンレー電気株式会社 LCD display
JPS6041974U (en) * 1983-08-26 1985-03-25 株式会社　三工社 Display device for numbers, letters, etc.
JPS6096361U (en) * 1983-11-01 1985-07-01 三菱電機株式会社 Elevator position indicator
CN109020260A (en) * 2018-08-03 2018-12-18 孟凡清 A kind of eyeglass demoulding process flow

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006113142A (en) * 2004-10-12 2006-04-27 Nippon Sheet Glass Co Ltd Glass optical elemental and its manufacturing method
US10813835B2 (en) 2012-11-30 2020-10-27 Corning Incorporated Glass containers with improved strength and improved damage tolerance
US11951072B2 (en) 2012-11-30 2024-04-09 Corning Incorporated Glass containers with improved strength and improved damage tolerance
JP2017527517A (en) * 2014-09-05 2017-09-21 コーニング インコーポレイテッド Glass product and method for improving the reliability of glass product
US10899659B2 (en) 2014-09-05 2021-01-26 Corning Incorporated Glass articles and methods for improving the reliability of glass articles
US11807570B2 (en) 2014-09-05 2023-11-07 Corning Incorporated Glass articles and methods for improving the reliability of glass articles
US11963927B2 (en) 2020-08-18 2024-04-23 Corning Incorporated Glass containers with delamination resistance and improved damage tolerance

Also Published As

Publication number Publication date
JPS567978B2 (en) 1981-02-20

Similar Documents

Publication Publication Date Title
JPS54158343A (en) Dry etching method for al and al alloy
JPS54148192A (en) Method of removing impurities at ppb level hardness from alkali metal brine
JPS5532722A (en) Removing method for glass invisible flaw
JPS5434751A (en) Washing method for silicon wafer
JPS52149210A (en) Removal of phosphorus and silicon in water-soluble slag of refining
JPS6456889A (en) Method for removing scale in jacket of glass lined apparatus
JPS5397664A (en) Process for removing impurities attached to the surface of solid particles
JPS546570A (en) Production of optical guides
JPS51140574A (en) Method of cleaning silicon substrate plate
JPS5212753A (en) Water clarifier
JPS5422172A (en) Etching method for multiple semiconductor
JPS5373075A (en) Treatment method for wafer surface
JPS5285978A (en) Removal of mercury in waste gas
JPS5376559A (en) Method of removing dusts
JPS53101181A (en) Method of withdrawing molded products from a mold
JPS541242A (en) Method of removing metal scale
JPS52131466A (en) Plasma etching method
JPS5267152A (en) Continuously treating method of exhaust liquid containing fluorine and phosphoric acid ions
JPS5386569A (en) Semiconductor pellet forming method
JPS5224102A (en) Separating method of metal from slag while hot
JPS5385171A (en) Selective etching method
JPS5390831A (en) Forming method for integration element
JPS5278601A (en) Vacuum degassing of molten metal
JPS548977A (en) Expressing method for etch pit of semiconductor crystal of compound of group iii-v
JPS51120916A (en) Method to remove sn from nb ore containing sn