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"Exploding pressure cookers" Topic


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xactoboy21 Mar 2005 8:55 p.m. PST

Man! The pressure cooker I use to cast resin just eploded on me! I pushed it to 65psi and BANG! I was lucky to not be knocked-out by the flying cover, or splatered with resin...

So my advice for all resin caster wannabe out there: when you buy a pressure cooker, don't get a crappy one like I did.

I realy should'nt had cheaped-out on that one, now I know. But has it happened to anyone else?

Sturmpioneer Sponsoring Member of TMP21 Mar 2005 11:32 p.m. PST

I heard of an insurance story where there was a complete failure of a pressure cooker. It exploded killing the poor homemaker and destroying the entire kitchen.

xactoboy22 Mar 2005 12:11 a.m. PST

So I was VERY lucky!

Anyone has a brand suggestion for me? I must buy a new one, the other is uterly destroyed!

Scurvy22 Mar 2005 2:30 a.m. PST

when I set up a home made bomb factory you and pork chop boy are hired on the spot.

BTCTerrainman Supporting Member of TMP22 Mar 2005 6:12 a.m. PST

Simple solution; purchase a pressure chamber designed for casting. Pressure cookers are for food, not high pressure resin casting. Objects placed under pressure can be very dangerous and fail without warning. There are way too many examples of serious injury and death from cutting corners like this. Is your life and health worth the little money you are saving by trying to go on the cheap?

Doug

BillChuck22 Mar 2005 7:25 a.m. PST

Many people that I am aware of use paint pots designed for holding paint for airbrushing cars and such. Pressure cookers just aren't designed for that kind of pressure.

You can get these paint pots at tool stores such as Harbor Freight. Here's a link showing the sort of thing you're looking for. link

Lord Hypnogogue22 Mar 2005 8:01 a.m. PST

I had a teacher in the 6th or 7th grade (who also taught me to play AH games) whose wife had that happen to her. She was not so fortunate. No shrapnel injury, but she did get severely burned.

Doctor Bedlam22 Mar 2005 11:23 a.m. PST

I'll never forget the day I heard the explosion, and ran into the kitchen. Found my old man sitting in the middle of the kitchen floor, covered in gravy, and holding a pot roast in his lap.

Stunned.

Should've bled off the pressure before he opened the thing...

Evilrik22 Mar 2005 11:54 a.m. PST

ok , forgive my ignorance, what are you using a pressure cooker for, vacuum casting?

DanErvin22 Mar 2005 1:31 p.m. PST

They're using it for pressure casting. Mix and pour the resin in the mold, then put the mold in the pressure vessel and pressurise. It makes the bubbles smaller.

Vacuum casting would be applying vacuum to the mixed resin before paouring to get the bubbles to come out of the mix. Vacuum required for this is significantly more than a Hoover will provide. Need special equipment.

Some places do both: mix, vacuum, pour, pressure. Gets most of the bubbles out, then squeezes whats left to insignificance.

Afrikakorps23 Mar 2005 2:06 p.m. PST

Speak of the devil,In Cmbodia a Pressurized noodle cooker exploded yesterday ,took out 6 people.

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