Digital Thermometer

1984nitro

1984nitro

Joined
May 22, 2008
Messages
603
would get a digital thermometer make so that I am able to heat treat O-1 and stainless? This would be used with my gas forge that is adjustable in the flame and temp.
thank for the info
Eric Knight
 
The omegas shown will work, but you will have to make a different thermocouple for the forge. Those little probes wont last 10 seconds in a forge.
For about $50-60 you can make a pyrometer that will work well for a forge. Order one of those inexpensive PID controllers on ebay, and a 12 gauge type K thermocouple (also ebay, but I didn't see any on right now). You want a high temp thermocouple with the ceramic insulators if it will be in a forge. Just hook the thermocouple to the PID with about three feet of thermocouple wire, add power ( many will run off a 9V battery), and you have a pyrometer.The good thing about using this setup is that if you decide to make your forge a controlled forge, you already have the main part ready. Just add a solenoid and you can set the temp and keep it there. I will have a tutorial and plans ready in about a month for an improved forge controller.
Stacy
 
There's a recent post (last 1-3 pages) that discusses the building of a HT oven. There's a few links to the thermocouple you would need.

--nathan
 
bladsmth said:
The omegas shown will work, but you will have to make a different thermocouple for the forge. Those little probes wont last 10 seconds in a forge.
For about $50-60 you can make a pyrometer that will work well for a forge. Order one of those inexpensive PID controllers on ebay, and a 12 gauge type K thermocouple (also ebay, but I didn't see any on right now). You want a high temp thermocouple with the ceramic insulators if it will be in a forge. Just hook the thermocouple to the PID with about three feet of thermocouple wire, add power ( many will run off a 9V battery), and you have a pyrometer.The good thing about using this setup is that if you decide to make your forge a controlled forge, you already have the main part ready. Just add a solenoid and you can set the temp and keep it there. I will have a tutorial and plans ready in about a month for an improved forge controller.
Stacy
Click to expand...

where can I find a solenoid for my forge
Eric Knight
 
Check out Ellis Custom Knifeworks. I know they build custom gas solenoid regulated salt pots and may have the solenoids to sale. They're pretty busy, but I'm sure they'd be willing to help you out if you can catch them. Otherwise search for "gas rated solenoid valve" on google.

--nathan
 
Asco Solenoid valves are popular


http://www.ascovalve.com/

Fuel gas rated assortment
http://www.ascovalve.com/Applications/Products/FuelGasOilSolenoidValvesData.aspx

possibilities for our purpose
Coils available in 24, 120 or 240 VAC Watch this when you order
Spec Sheets
http://www.ascovalve.com/Common/PDFFiles/Product/8040_NC_pilot.pdf

http://www.ascovalve.com/Common/PDFFiles/Product/8262_Gas.pdf

Pricing and Purchasing
http://www.ascovalve.com/Applications/ProductSearch/ProductInfo.aspx?productid=8262G078AC120/60,110/50D&userAction=view&userSelection=scaleType%3DEnglish%26family%3D1%26valvefunc%3D%26pipesz%3D%26bodymtrl%3D%26filterdescription%3D%26operatortype%3D%26mediatype%3D%26pressure%3D%26volt%3D%26productid%3D8262G078%26pagenum%3D1%26sortColumn%3DproductType%26sortOrder%3D0%26prodType%3Dascotoday%26cmalias%3D&newView=yes

Local dealers and or E-Bay may be cheaper.

other valve types and brands are available in DC coils if this suits your controller better
 
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