Porous sintered fire supressors for the localization of acetylene-oxygen and hydrogen-oxygen flames

Summary A study was made of porous sintered tubular elements from nonspherical Kh17N2 stainless steel powders under critical conditions of gas flame processes. The critical values of the Peckle number were calculated; it was found that, for the acetylene-oxygen flame, the values of Pe_cr differ only little from a mean value of 65, while Pe_cr for the hydrogen-oxygen flame is 60.It is shown that sintered tubular elements from nonspherical stainless steel powders may be employed as fire supressors for quenching the acetylene-oxygen and hydrogen-oxygen flames in order to decrease hazards inherent in processes of gas flame treatment of metals.Translated from Poroshkovaya Metallurgiya, No. 9 (57), pp. 18–22, September, 1967.