(0)C03B:0/5:
IPC6
SECTION C - CHEMISTRY; METALLURGY
C03B
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C 03

 GLASS; MINERAL OR SLAG WOOL

C 03 B

 MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES

 

 

 

Melting the raw material
 

 1
/ 00 Preparing the batches (chemical compositions C 03 C)

1
/ 02 • Compacting the glass batches, e.g. pelletising [5]  
 

 3
/ 00 Charging the melting furnaces

3
/ 02 • combined with preheating, premelting or pretreating the glass-making ingredients, pellets or cullet [5]  
 

 5
/ 00 Melting in furnaces; Furnaces so far as specially adapted for glass manufacture

Note
 

Group C 03 B 5/02 takes precedence over groups C 03 B 5/04 to C 03 B 5/14.

5
/ 02 • in electric furnaces  

5
/ 027 • • by passing an electric current between electrodes immersed in the glass bath, i.e. by direct resistance heating [3]  

5
/ 03 • • • Tank furnaces [5]  

5
/ 033 • • by using resistance heaters above or in the glass bath, i.e. by indirect resistance heating [3]  

5
/ 04 • in tank furnaces  

5
/ 05 • • Discontinuously-working tank furnaces, e.g. day tanks [5]  

5
/ 06 • in pot furnaces  

5
/ 08 • • Glass-melting pots  

5
/ 10 • in combined tank furnaces and pots  

5
/ 12 • in shaft furnaces  

5
/ 14 • in revolving cylindrical furnaces  

5
/ 16 • Special features of the melting process; Auxiliary means specially adapted for glass-melting furnaces  

5
/ 167 • • Means for preventing damage to equipment, e.g. by molten glass, hot gases, batches (C 03 B 5/20, C 03 B 5/42 take precedence) [5]  

5
/ 173 • • Apparatus for changing the composition of the molten glass in glass furnaces, e.g. for colouring the molten glass (chemical aspects C 03 C) [5]  

5
/ 18 • • Stirring devices; Homogenisation  

5
/ 182 • • • by moving the molten glass along fixed elements, e.g. deflectors, weirs, baffle plates [5]  

5
/ 183 • • • using thermal means, e.g. for creating convection currents [5]  

5
/ 185 • • • • Electric means [5]  

5
/ 187 • • • with moving elements [3]  

5
/ 193 • • • using gas, e.g. bubblers [3]  

5
/ 20 • • Bridges, shoes, throats, or other devices for withholding dirt, foam, or batch  

5
/ 225 • • Refining (C 03 B 5/18 takes precedence) [3]  

5
/ 23 • • Cooling the molten glass (C 03 B 5/18, C 03 B 5/225 take precedence) [3]  

5
/ 235 • • Heating the glass (C 03 B 5/02, C 03 B 5/18, C 03 B 5/225 take precedence) [3]  

5
/ 237 • • • Regenerators or recuperators specially adapted for glass-melting furnaces [5]  

5
/ 24 • • Automatically regulating the melting process  

5
/ 26 • • Outlets; Overflows  

5
/ 28 • • Siphons  

5
/ 42 • • Details of construction of furnace walls, e.g. to prevent corrosion; Use of materials for furnace walls [3]  

5
/ 425 • • • Preventing corrosion or erosion (C 03 B 5/44 takes precedence) [5]  

5
/ 43 • • • Use of materials for furnace walls, e.g. fire-bricks [5]  

5
/ 435 • • • Heating arrangements for furnace walls [5]  

5
/ 44 • • • Cooling arrangements for furnace walls [3]  
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