prepman
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This link is one I watched a year ago and left comments. There is a bit of confusion as to what de-gassing is and how it's caused. The industrial de-gassing is to remove hydrogen contamination using some pretty extensive setups, vacuum etc. There are many papers on this on the web.
The most common gas bubbles that ruin castings are produced by entrainment due to poor pouring techniques.
Anyway this is one guy whose prepared to go out on limb....good (great) video. Make your own mind up about.
He refers to this gentleman
The most common gas bubbles that ruin castings are produced by entrainment due to poor pouring techniques.
Anyway this is one guy whose prepared to go out on limb....good (great) video. Make your own mind up about.
He refers to this gentleman