C - Chemistry – Metallurgy – 03 – B
Patent
C - Chemistry, Metallurgy
03
B
C03B 37/012 (2006.01) C03B 23/043 (2006.01) C03B 23/207 (2006.01) C03B 29/02 (2006.01) F23D 14/22 (2006.01) F23D 14/32 (2006.01) F23D 14/58 (2006.01)
Patent
CA 2454021
A method for processing a preform supported with a stationary chuck and a movable chuck of a glass-working lathe comprises providing a burner of a type which is able to create flame-controlled conditions by controlling flow rates of a flammable gas and a supporting gas wherein the supporting gas is discharged from at least one group of discharge pipes co-axially classified into plural groups that are, respectively, controllable with respect to a gas flow rate. The preform is processed under the flame-controlled conditions. A burner system and a preform processing apparatus comprising the burner system, both suited for realizing the method, are also described.
Robic
Shin-Etsu Chemical Co. Ltd.
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