C03B MANUFACTURE OR SHAPING OF GLASS, OR OF MINERAL OR SLAG WOOL; SUPPLEMENTARY PROCESSES IN THE MANUFACTURE OR SHAPING OF GLASS, OR OF MINERAL OR SLAG WOOL
Introduced: September 1968
Classification Context
- Section:
- CHEMISTRY; METALLURGY
- Class:
- GLASS; MINERAL OR SLAG WOOL
- Subclass:
- MANUFACTURE OR SHAPING OF GLASS, OR OF MINERAL OR SLAG WOOL; SUPPLEMENTARY PROCESSES IN THE MANUFACTURE OR SHAPING OF GLASS, OR OF MINERAL OR SLAG WOOL
Description
C03B covers the manufacturing and shaping processes for glass, mineral wool, and slag wool, including both primary production methods and supplementary operations. This subclass encompasses technologies such as melting, fining, homogenizing, forming (casting, drawing, pressing, blowing), annealing, and thermal treatment of glass materials, as well as production of fibrous wool products from mineral or slag feedstocks. It includes equipment and process innovations for industrial-scale glass production facilities, specialized forming techniques for different glass product types, and post-formation processing steps that modify mechanical or thermal properties. Related chemical composition of glass itself is classified separately under C03C.
Scope Notes
Glossary: Annealing Process of slowly cooling glass to relieve internal stresses after it was formed Cullet Scraps of broken or waste glass for remelting Gob gobs Lump of molten glass used to make a piece of glassware Mineral wool Inorganic fibrous material made from molten glass Slag wool Mineral wool made from blast-furnace slag Tempering Process of heating glass above its annealing point and then rapidly cooling it. Debiteuse Clay block floating upon molten glass in a tank furnace and containing a long slot that shapes glass into a sheet as it is drawn through it | Limiting references: Preparation of finely divided silica Chemical aspects of glass Changing the surface of the glass ribbon by chemical methods Refining agents Chemical aspects of hollow, porous, sintered or foamed beads Beads composition Surface treatment of glass by coating with glass Surface treatment of fibres or filaments from glass, minerals or wools, sizing of the fibres Coating of the fibre during the drawing process Polarisation-maintaining optical fibres per se Cutting or severing of light guides Fusion-splicing of light guides Treatment of light guides to shape optical elements
Related Keywords
24 direct subcodes
Child Classifications
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- C03B 1/00 Preparing the batches
- C03B 11/00 Pressing glass
- C03B 13/00 Rolling glass
- C03B 15/00 Drawing glass upwardly from the melt
- C03B 17/00 Forming glass by flowing out, pushing-out, or drawing downwardly or laterally from forming slits or by overflowing over lips
- C03B 18/00 Shaping glass in contact with the surface of a liquid
- C03B 19/00 Other methods of shaping glass
- C03B 20/00 Processes specially adapted for the production of quartz or fused silica articles
- C03B 21/00 Severing glass sheets, tubes, or rods while still plastic
- C03B 23/00 Re-forming shaped glass
- C03B 25/00 Annealing glass products
- C03B 27/00 Tempering glass products
- C03B 29/00 Reheating glass products for softening or fusing their surfaces; Fire-polishing; Fusing of margins
- C03B 3/00 Charging the melting furnaces
- C03B 31/00 Manufacture of rippled or crackled glass
- C03B 32/00 Thermal after-treatment of glass products not provided for in groups , e.g. crystallisation, eliminating gas inclusions or other impurities
- C03B 33/00 Severing cooled glass
- C03B 35/00 Transporting of glass products during their manufacture
- C03B 37/00 Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
- C03B 40/00 Preventing adhesion between glass and glass or between glass and the means used to shape it