. Dental metallurgy, for the use of dental students and practitioners. f gasoline torch, fittedwith a holder so that it may also be used for heating torch may be released from the stand and also be usedfor soldering purposes. Gas Burner, etc.—The familiar Bunsen burner will notrequire a description; however, a word or two in regard tothe nature of the flame may not be amiss. A flame may beconsidered a mass of highly heated gases, undergoing rapidcombustion. The Bunsen-burner flame is made up of threecones: (1) consisting of a mixture of combustible gases;(2) consisting of gases in
. Dental metallurgy, for the use of dental students and practitioners. f gasoline torch, fittedwith a holder so that it may also be used for heating torch may be released from the stand and also be usedfor soldering purposes. Gas Burner, etc.—The familiar Bunsen burner will notrequire a description; however, a word or two in regard tothe nature of the flame may not be amiss. A flame may beconsidered a mass of highly heated gases, undergoing rapidcombustion. The Bunsen-burner flame is made up of threecones: (1) consisting of a mixture of combustible gases;(2) consisting of gases in which combustion is starting;because of the nature of this cone, being low in oxygen, it iscalled the reducing flame, abbreviated R. F.; (3) consistingof gases in which combustion is completed; there is sufficientoxygen present to completely oxidize the combustible flame is called the oxidizing flame (O. F.). 80 METALLURGICAL APPARATUS To increase the rate of combustion, which would result inalso raising the temperature of the flame, a blast is made use. Fig. 18—Blow-pipe for alcohol.(Central Scientific Company.)
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Keywords: ., bookcentury1900, bookdecade1910, bookpublisherphila, bookyear1917
