GB1000938A - Improvements in the polishing of glass articles - Google Patents
Improvements in the polishing of glass articlesInfo
- Publication number
- GB1000938A GB1000938A GB4449963A GB4449963A GB1000938A GB 1000938 A GB1000938 A GB 1000938A GB 4449963 A GB4449963 A GB 4449963A GB 4449963 A GB4449963 A GB 4449963A GB 1000938 A GB1000938 A GB 1000938A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bath
- polishing
- acid
- salt
- sulphuric acid
- 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
- 238000005498 polishing Methods 0.000 title abstract 10
- 239000011521 glass Substances 0.000 title abstract 4
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 abstract 6
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract 5
- 235000011149 sulphuric acid Nutrition 0.000 abstract 5
- 239000001117 sulphuric acid Substances 0.000 abstract 5
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 abstract 2
- 239000002253 acid Substances 0.000 abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 abstract 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 abstract 1
- JKNZUZCGFROMAZ-UHFFFAOYSA-L [Ag+2].[O-]S([O-])(=O)=O Chemical class [Ag+2].[O-]S([O-])(=O)=O JKNZUZCGFROMAZ-UHFFFAOYSA-L 0.000 abstract 1
- KRVSOGSZCMJSLX-UHFFFAOYSA-L chromic acid Substances O[Cr](O)(=O)=O KRVSOGSZCMJSLX-UHFFFAOYSA-L 0.000 abstract 1
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 229910052802 copper Inorganic materials 0.000 abstract 1
- 239000010949 copper Substances 0.000 abstract 1
- 238000007598 dipping method Methods 0.000 abstract 1
- 150000002222 fluorine compounds Chemical class 0.000 abstract 1
- AWJWCTOOIBYHON-UHFFFAOYSA-N furo[3,4-b]pyrazine-5,7-dione Chemical compound C1=CN=C2C(=O)OC(=O)C2=N1 AWJWCTOOIBYHON-UHFFFAOYSA-N 0.000 abstract 1
- 229910001385 heavy metal Inorganic materials 0.000 abstract 1
- FBAFATDZDUQKNH-UHFFFAOYSA-M iron chloride Chemical compound [Cl-].[Fe] FBAFATDZDUQKNH-UHFFFAOYSA-M 0.000 abstract 1
- 239000012286 potassium permanganate Substances 0.000 abstract 1
- 150000003839 salts Chemical class 0.000 abstract 1
- 229910021653 sulphate ion Inorganic materials 0.000 abstract 1
- 238000011282 treatment Methods 0.000 abstract 1
- 229910052725 zinc Inorganic materials 0.000 abstract 1
- 239000011701 zinc Substances 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPINGÂ
- B63B19/00—Arrangements or adaptations of ports, doors, windows, port-holes, or other openings or covers
- B63B19/12—Hatches; Hatchways
- B63B19/14—Hatch covers
- B63B19/19—Hatch covers foldable
- B63B19/203—Hatch covers foldable actuated by cables or the like
-
- 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
- C03C15/00—Surface treatment of glass, not in the form of fibres or filaments, by etching
- C03C15/02—Surface treatment of glass, not in the form of fibres or filaments, by etching for making a smooth surface
-
- 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
- C03C15/00—Surface treatment of glass, not in the form of fibres or filaments, by etching
- C03C15/02—Surface treatment of glass, not in the form of fibres or filaments, by etching for making a smooth surface
- C03C15/025—Surface treatment of glass, not in the form of fibres or filaments, by etching for making a smooth surface for polishing crystal glass, i.e. lead glass
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Combustion & Propulsion (AREA)
- Crystallography & Structural Chemistry (AREA)
- Surface Treatment Of Glass (AREA)
Abstract
To polish glass articles, they are immersed alternately in a polishing bath consisting of sulphuric acid containing hydrofluoric acid and in a salt-removing bath of sulphuric acid of concentration at least 66% and finally, when the required polish has been achieved, they are rinsed with water. The polishing bath consists of sulphuric acid of concentration 50 to 60% containing 5 to 10% of hydrofluoric acid, the polishing bath being kept at a temperature between 40 DEG and 60 DEG C. and the sulphuric acid bath above 60 DEG C., the sulphuric acid bath being preferably 10 DEG to 20 DEG C. higher than that of the polishing bath. The concentrations of the polishing bath is maintained by addition of highly concentrated hydrofluoric acid or fluosulphonic acid and that of the salt-removing bath by addition of oleum. The fluorine compounds escaping from the hotter salt-removing bath are recovered and reconverted to the acid for return to the polishing bath. One or more heavy metal salts such as iron chloride or sulphate or zinc, copper or silver sulphates, or potassium permanganate, chromic acid or hydrogen peroxide may be added to the polishing bath to give more intensive polishing action and the number of alternate dippings is thereby reduced. Particular examples are given, the articles being swung in the polishing bath for 10 to 20 seconds and in the salt-removing bath for 3 to 5 seconds, the sequence being repeated for 10 to 18 treatments before the final rinsing in water. Plated glasses with a thin colourless coating of glass is similarly treated.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DES82407A DE1185780B (en) | 1962-11-10 | 1962-11-10 | Process for polishing objects made of crystal or lead crystal glass |
| DES84367A DE1189680B (en) | 1963-03-26 | 1963-03-26 | Process for polishing objects made of crystal or lead crystal glass |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1000938A true GB1000938A (en) | 1965-08-11 |
Family
ID=25997050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4449963A Expired GB1000938A (en) | 1962-11-10 | 1963-11-11 | Improvements in the polishing of glass articles |
Country Status (3)
| Country | Link |
|---|---|
| AT (1) | AT249300B (en) |
| GB (1) | GB1000938A (en) |
| NL (1) | NL6906536A (en) |
-
1963
- 1963-11-11 GB GB4449963A patent/GB1000938A/en not_active Expired
- 1963-11-11 AT AT900663A patent/AT249300B/en active
-
1969
- 1969-04-28 NL NL6906536A patent/NL6906536A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| AT249300B (en) | 1966-09-12 |
| NL6906536A (en) | 1969-07-25 |
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