GB482914A - Method of reducing the tendency of tempered glass articles to yield under their internal stresses - Google Patents
Method of reducing the tendency of tempered glass articles to yield under their internal stressesInfo
- Publication number
- GB482914A GB482914A GB3541936A GB3541936A GB482914A GB 482914 A GB482914 A GB 482914A GB 3541936 A GB3541936 A GB 3541936A GB 3541936 A GB3541936 A GB 3541936A GB 482914 A GB482914 A GB 482914A
- Authority
- GB
- United Kingdom
- Prior art keywords
- glass
- per cent
- tempered glass
- articles
- glass articles
- 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
Links
- 238000000034 method Methods 0.000 title abstract 4
- 239000005341 toughened glass Substances 0.000 title abstract 3
- 239000011521 glass Substances 0.000 abstract 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 2
- 238000005496 tempering Methods 0.000 abstract 2
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 abstract 1
- 201000001079 SADDAN Diseases 0.000 abstract 1
- 208000017601 Severe achondroplasia-developmental delay-acanthosis nigricans syndrome Diseases 0.000 abstract 1
- 208000008919 achondroplasia Diseases 0.000 abstract 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 1
- 238000010586 diagram Methods 0.000 abstract 1
- 229910052731 fluorine Inorganic materials 0.000 abstract 1
- 239000011737 fluorine Substances 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 238000007689 inspection Methods 0.000 abstract 1
- 239000000395 magnesium oxide Substances 0.000 abstract 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 abstract 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 239000000377 silicon dioxide Substances 0.000 abstract 1
- KKCBUQHMOMHUOY-UHFFFAOYSA-N sodium oxide Chemical compound [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 abstract 1
- 229910001948 sodium oxide Inorganic materials 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL 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
- C03C23/00—Other surface treatment of glass not in the form of fibres or filaments
- C03C23/007—Other surface treatment of glass not in the form of fibres or filaments by thermal treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
- B21C37/15—Making tubes of special shape; Making tube fittings
- B21C37/28—Making tube fittings for connecting pipes, e.g. U-pieces
- B21C37/283—Making U-pieces
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B27/00—Tempering or quenching glass products
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Thermal Sciences (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Glass Compositions (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
Abstract
482,914. Tempering glass. SADDAN, R. (Corning Glass Works) Dec. 24, 1936, No. 35419. [A Specification was laid open to inspection under Sect. 91 of the Acts, July 1, 1937.] Drawings to Specification. [Class 56] A method of increasing the stability of tempered glass articles consists in tempering the articles to produce a high degree of stress in the glass, and then subjecting them to heat treatment at a temperature, and for a time, adapted to reduce the stress to a predetermined value. The method is suitable for treating tempered glass articles which are subjected to heat in service. For example, a cooking-dish made of a glass composed of 60À5 per cent of silica, 21À4 per cent of alumina, 0À6 per cent of sodium oxide, 8À7 per cent of magnesium oxide, and 1-5 per cent of fluorine is highly tempered. It is then heated to a temperature of 535‹ C. for two hours, or to 510‹C. for seven hours. The compositions of a number of glasses to which the method may be applied are given in the Specification, and the effect of the treatment of the glass is illustrated by diagrams.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL80633D NL80633C (en) | 1936-12-24 | ||
| NL61912D NL61912C (en) | 1936-12-24 | ||
| US56814A US2148630A (en) | 1935-12-30 | 1935-12-30 | Method of tempering glass |
| GB3541936A GB482914A (en) | 1936-12-24 | 1936-12-24 | Method of reducing the tendency of tempered glass articles to yield under their internal stresses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3541936A GB482914A (en) | 1936-12-24 | 1936-12-24 | Method of reducing the tendency of tempered glass articles to yield under their internal stresses |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB482914A true GB482914A (en) | 1938-04-07 |
Family
ID=10377496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3541936A Expired GB482914A (en) | 1935-12-30 | 1936-12-24 | Method of reducing the tendency of tempered glass articles to yield under their internal stresses |
Country Status (2)
| Country | Link |
|---|---|
| GB (1) | GB482914A (en) |
| NL (2) | NL80633C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2492216A (en) * | 1939-11-25 | 1949-12-27 | Hartford Empire Co | Method of and apparatus for handling and tempering glassware |
-
0
- NL NL61912D patent/NL61912C/xx active
- NL NL80633D patent/NL80633C/xx active
-
1936
- 1936-12-24 GB GB3541936A patent/GB482914A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2492216A (en) * | 1939-11-25 | 1949-12-27 | Hartford Empire Co | Method of and apparatus for handling and tempering glassware |
Also Published As
| Publication number | Publication date |
|---|---|
| NL61912C (en) | |
| NL80633C (en) |
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