what is the best thing to quench steel in? some people say automatic transmission fluid, some people say motor oil, some people say salt water and what do you think is the best from personal expierence? (for knife blade tempering)
2006-12-20 09:09:30 · 3 answers · asked by Brad B 2 in Science & Mathematics ➔ Engineering
peanut oil holds its viscosity at a higher temp than other oils, that's why many custom makers use it. others use molten salt. it all depends on the steel and its application.
2006-12-23 19:52:00 · answer #1 · answered by otis the brave (luke 22:36) 5 · 0⤊ 0⤋
There is no "best", both are a compromise.
Water is one of the most efficient quenching media where maximum hardness is required, but it is liable to cause distortion and cracking of the work piece. Where hardness can be sacrificed, whale, cotton seed and mineral oils are used. These tend to oxidise and form sludge with consequent lowering of efficiency.
2006-12-20 21:35:49 · answer #2 · answered by Marianna 6 · 0⤊ 0⤋
The Ancient Romans used blood.
Not practical, just a fact.
2006-12-22 18:40:57 · answer #3 · answered by charley128 5 · 0⤊ 1⤋