Sign in to follow this  
Preachinpilot

Ceramic kiln for Salt Bath Heat Treating

Recommended Posts

I am building a salt bath furnace out of a ceramic kiln. It is a smaller one but will allow a15 inch tank.

i have the lid and one k type thermocouple.

question is I can’t seem to find any direction for connecting two thermocouples where one is for over heat of the kiln itself and one for the salt bath. 
any idea?
 

Share this post


Link to post
Share on other sites

What type of ceramic kiln are you using? What type of controller does it use? There may or may not be a good way to accomplish what you describe with your current equipment, but you haven't provided enough information for anyone to answer your question. 

Share this post


Link to post
Share on other sites

It will be all about the controller.  Most likely you will not have a controller that will accept two independent sensor inputs and have programmable sequences for both.  Why do you feel you need to control the kiln high temperature independent of the salt bath?  If just a high limit you may be able to get away with a second controller wired in series with the first to the SSR or contactor that is used for controlling the salt bath temperature.  Be sure to use the correct thermocouple wire and consider a ceramic shield in the kiln and SS well in the tank, molten salt fumes are quite corrosive.

Also while low temperature salt baths for tempering are reasonably straightforward, high temperature salt baths for hardening are extremely dangerous.  Your process and procedures need to be spot on to avoid molten salt volcanoes.  Hopefully you have used one under the guidance of an experienced person and aren't just relying on "You-Tube university".

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Sign in to follow this