GB455751A - Improved method of strengthening glass, and glass articles produced thereby - Google Patents

Improved method of strengthening glass, and glass articles produced thereby

Info

Publication number
GB455751A
GB455751A GB1600/36A GB160036A GB455751A GB 455751 A GB455751 A GB 455751A GB 1600/36 A GB1600/36 A GB 1600/36A GB 160036 A GB160036 A GB 160036A GB 455751 A GB455751 A GB 455751A
Authority
GB
United Kingdom
Prior art keywords
glass
heated
corning
temperature
chilled
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
Application number
GB1600/36A
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.)
Corning Glass Works
Original Assignee
Corning Glass Works
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
Application filed by Corning Glass Works filed Critical Corning Glass Works
Publication of GB455751A publication Critical patent/GB455751A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C15/00Surface treatment of glass, not in the form of fibres or filaments, by etching
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B27/00Tempering or quenching glass products
    • C03B27/02Tempering or quenching glass products using liquid
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B27/00Tempering or quenching glass products
    • C03B27/02Tempering or quenching glass products using liquid
    • C03B27/03Tempering or quenching glass products using liquid the liquid being a molten metal or a molten salt
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B29/00Reheating glass products for softening or fusing their surfaces; Fire-polishing; Fusing of margins
    • C03B29/02Reheating glass products for softening or fusing their surfaces; Fire-polishing; Fusing of margins in a discontinuous way
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C23/00Other surface treatment of glass not in the form of fibres or filaments

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Surface Treatment Of Glass (AREA)

Abstract

455,751. Strengthening glassware. CORNING GLASS WORKS, Walnut Street, Corning, New York, U.S.A.-(Assignees of Phillips, C. J.; 78, John Street, Corning, New York, U.S.A.) Jan. 17, 1936, No. 1600. Convention date, Feb. 11, 1935. [Class 56] Glass articles are strengthened by tempering and, in addition, by fortifying the surface by submitting the article to the action of an etching agent which removes or smooths surface imperfections such as scratches. The glass may be heated to a temperature of 750‹ C., and then placed in a molten mixture of sodium hydroxide and potassium hydroxide, also at a temperature of 750‹ C. After a short time, the glass is removed and chilled rapidly. In another method, the glass is first subjected to an etching agent, such as hydrofluoric acid, and immediately after removal from the acid it is heated and chilled as in the usual processes for tempering. In a further method, the glass is first heated to the required temperature, then it is submerged in a chilling-bath composed of a molten mixture of sodium and potassium hydroxides at 650‹ C., and finally it is removed to another chilling-bath at a lower temperature. The glass may also be heated in a bath of the etching material and may be chilled in another. Other molten mixtures of salts which are strongly alkaline, such as alkali cyanides or carbonates, can be used instead of those mentioned above.
GB1600/36A 1935-02-11 1936-01-17 Improved method of strengthening glass, and glass articles produced thereby Expired GB455751A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US455751XA 1935-02-11 1935-02-11

Publications (1)

Publication Number Publication Date
GB455751A true GB455751A (en) 1936-10-27

Family

ID=21938697

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1600/36A Expired GB455751A (en) 1935-02-11 1936-01-17 Improved method of strengthening glass, and glass articles produced thereby

Country Status (4)

Country Link
BE (1) BE413493A (en)
DE (1) DE655542C (en)
GB (1) GB455751A (en)
NL (1) NL42788C (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE424671A (en) * 1937-04-10

Also Published As

Publication number Publication date
DE655542C (en) 1938-01-18
BE413493A (en)
NL42788C (en)

Similar Documents

Publication Publication Date Title
GB442526A (en) Improved glassware and process of making the same
GB699897A (en) Improvements in or relating to sculpturing glass
GB1292539A (en) Method of strengthening a silicate glass article
ES337162A1 (en) Method of strengthening glass
ES354347A1 (en) Method for thermochemical strengthening of glass articles
GB1026770A (en) Glass article and method of treatment
GB452268A (en) Method of tempering a glass article
JP2016216295A (en) Method for producing chemical strengthened glass
GB455751A (en) Improved method of strengthening glass, and glass articles produced thereby
GB416473A (en) Improved method of fining borosilicate glasses and products produced thereby
US3556757A (en) Alkali metal salt bath with alkali metal acetate additive for treatment of glasses and glass-ceramics
FR639594A (en) Method for preventing atmospheric attack (including darkening, tarnishing and buffing) of the glass surface
GB442859A (en) Process for cleaning or descaling metal
FR798807A (en) Improvements to the process and apparatus for annealing sheets or ribbons of glass, ice or similar products
GB429367A (en) Process for the production of wholly crystalline refractories from zircon by fusion
US2205181A (en) Method of tempering glass articles, and bath therefor
SU50579A1 (en) Method of preparing base exchange silicate to soften water
US2764848A (en) Improved glass cutting method
GB597591A (en) Shock-resistant glass and a process of making the same
GB365425A (en) Improved process for removal of vitreous enamel from metal articles
GB477460A (en) An improved process for making tempered articles of lime-soda glass
GB228907A (en) Improvements in and relating to frosted glass articles and methods of making same
AU101964B1 (en) An improved method of tempering glass articles anda bath therefor
GB698758A (en) Improvements in and relating to the de-sulphurisation and de-gasification of copper
GB477585A (en) Improvements relating to the manufacture of tempered glass articles