Fluid at 5000psi and 700 F
Fluid at 5000psi and 700 F
(OP)
I am trying to find a liquid that can be pressurized to 5000psi and heated up to 700 degF.
I will be using this fluid in a pressure vessel with heater bands around it. What I am trying to do here is very similar to HIPing, where I want to substitute gas with a liquid. I will be HIPing Polymers/plastics. I am not sure how water behaves at these conditions. Also, I was looking into some polymer quenchants that I thought I could use. But, could not get much info.
Looking forward to hear your suggestions.
Thank you.
I will be using this fluid in a pressure vessel with heater bands around it. What I am trying to do here is very similar to HIPing, where I want to substitute gas with a liquid. I will be HIPing Polymers/plastics. I am not sure how water behaves at these conditions. Also, I was looking into some polymer quenchants that I thought I could use. But, could not get much info.
Looking forward to hear your suggestions.
Thank you.





RE: Fluid at 5000psi and 700 F
Syltherm 800 (Dow) or
Therminol 75 (Solutia formerly Monsanto)
both are good up to and above 700F.
best wishes,
sshep
p.s. what is HIPing?
RE: Fluid at 5000psi and 700 F
RE: Fluid at 5000psi and 700 F
Mike Halloran
Pembroke Pines, FL, USA
RE: Fluid at 5000psi and 700 F
Mike - The normal sintering tremperature for PTFE is around 700F.
I am trying to apply pressure isostatically on the polymer sample. It could be a 2" OD, 7" long solid billet inside the pressure vessel. I am not sure if we can achieve equal pressures in all directions using silicones. Please advice.
RE: Fluid at 5000psi and 700 F
RE: Fluid at 5000psi and 700 F
http://www.freepatentsonline.com/4889668.pdf
Won't conventional HIP equipment work for you?
RE: Fluid at 5000psi and 700 F
RE: Fluid at 5000psi and 700 F
when operting at high pressure , be sure that there is positive relief of overpressure. Sometimes, if there is a temp excursion , there may be new chem species formed that may lead to rapid overpressure unless such relief is provided.
RE: Fluid at 5000psi and 700 F
Mike Halloran
Pembroke Pines, FL, USA
RE: Fluid at 5000psi and 700 F