On the Quenching Effects of Mineral Oil.
A study on the quenching effects of oil for steel-III
1963 Volume 49 Issue 8 Pages 1102-1109
Details
1963 Volume 49 Issue 8 Pages 1102-1109
In the present series of study, the quenching effects of mineral oils having different properties were examined, and the following conclusions were obtained:
(1) Quenching effects on steel of light-and heavy-fraction mineral oils are less remarkable than that of medium-fraction one.
(2) A medium-fraction distillate, if redistilled, loses the greater part of its hydrocarbon having higher boiling points from itself and shows less remarkable quenching effects than otherwise.
(3) Among different mineral oils having the same boiling point, the most remarkable quenching effects are to be expected from those consisting mainly of aromatic hydrocarbons, such as the solvent extract.
(4) In the case of medium-fraction mineral oils having a fixed boiling point, the quenching effects depend upon the concentration of aromatic hydrocarbons in them.
(5) The duration of formed gas film and the violence of thermal cracking of oil during quenching change with its boiling point as well as with contents of some hy rocarbons having higher boiling points and of aromatic hydrocarbons.
