What Material to Use for an Insulating Coating on Industrial Tongs?
What Material to Use for an Insulating Coating on Industrial Tongs?
(OP)
We have different sets of steel tongs that are used for manually transferring hot parts out of our austenitizing furnace and into our fixture quenching machines. At the point where the tongs contact the hot parts, there is some heat transfer. For the thicker parts this doesn't really cause any significant problems. But with the thinnest walled parts, the heat loss at the point of contact is large enough where we do end up with low hardness readings after quench and temper in those isolated areas sometimes. What I am looking for are suggestions about what types of coatings could be applied to the ends of the tongs that would act as an insulting layer that would minimize heat transfer during this step in the process. But the coating can't be slippery - the tongs still have to be able to grip the parts. And the coating has to be able to put up with some mechanical abuse without breaking. Suggestions are welcome.
Maui
Maui





RE: What Material to Use for an Insulating Coating on Industrial Tongs?
http://www.thermalspray.org/index.php?option=com_m...
http://www.thermalspray.com/plasma-spray-materials...
http://www.flamesprayusa.com/flame-sprayed-coating...
http://plasma-tec.com/coating-application-chart
RE: What Material to Use for an Insulating Coating on Industrial Tongs?
RE: What Material to Use for an Insulating Coating on Industrial Tongs?
Quartz/silica fiber woven cloth, or partially sintered "boards" would be a possible replacement for racooke's asbestos pads, which are probably tough to find these days.
Do realize that inhaled powdered silica dust can be as hazardous to people as asbestos fibers.
RE: What Material to Use for an Insulating Coating on Industrial Tongs?
Dip the tongs in a slurry paste of any refractory (fire clay, alumina etc) and then allow them to dry. You could repeat the process easily .
I'm just one step away from being rich, all I need now is money.
( read somewhere on the internet)
RE: What Material to Use for an Insulating Coating on Industrial Tongs?
RE: What Material to Use for an Insulating Coating on Industrial Tongs?