Thankyou for your replies, you are correct metman the haze is very localised and never really moves about much (strange considering the gas flows), I have never seen this before and just wondered if anyone had witnessed this type of event.
Sorry for the delay in replying to this post, the gas levels and flow settings have not changed, Nitrogen/Hydrogen are the main gases.
The haze area is behind the flame curtain and constantly comes from a point which is on top of the belt surface in a central position only and never moves from...
Hi
Thanks for the reply, the observed situation was made when the furnace was empty and yet to be loaded. My concern is would this be detrimental to any components to be loaded into the furnace particularly because Of the unsure nature of what this "wispy haze' was. I am surprised that the gas...
Can anyone advise on a problem observed looking inside a continuous mesh belt sintering furnace whilst at temperature, there appears to be a 'will o the wisp' haze at the front section just on and above the belt in the preheat zone just behind the flame curtain, this doesn't seem to moving...
Thanks for the reply
Sintered density would be in the region of 7.0g/cc
The alloy steels will contain around 15% Cr, 10% Ni, 2% Mo, 2% V, 2% W
Sintering temperature would be approximately 1185C
Time at temp approximately 30mins
Thanks
Thanks for your reply Plymouth
I was also wondering if excessve time at temperature could have maybe a detrimental effect on the dimensional stability of small components?
When Steel components are tempered is it possible during the heat treatment process to allow too much time soaking at the target tempering temperature?