Some Considerations and Experiments Regarding to Cutting Oxygen (Report 2)
In the case of with preheating flame
1968 Volume 37 Issue 6 Pages 604-610
Details
1968 Volume 37 Issue 6 Pages 604-610
Regarding to the momentum of cutting oxygen stream, in the report 1, author described some results of considerations to the phenomena of oxygen stream in the case of without preheating flame. In this paper, cutting oxygen has been considered in the case of with preheating flame.
To study the effect of preheating flame on the momentum of cutting oxygen stream, total head of oxygen stream is measured at various conditions of cutting oxygen pressure and preheating flame, and it has been confirmed that preheating flame is very useful to keep the momentum of cutting oxygen stream. The momentum of cutting oxygen stream is kept most effectively under the conditions as follows.
(1) At about 4 kg/cm2 of cutting oxygen pressure.
(2) Preheating flame applied is neutral mixture.
(3) At suitable preheating gas flow rate.
(4) Increasing of numbers of preheating orifice. And the best keeping effect is obtained by annular preheating flame.
Relation between momentum of oxygen and cut plate thickness will be described in another paper.
