Tempering 60Si2MnA ? Hard to find on color charts

So these are two knive i had the question about temper color
Stacy E. Apelt - Bladesmith said:
Can you explain what you mean by "air from the back and gas from the top"?
Photos would help a lot.
Click to expand...
Im trying stacy i cant get it to accept these URLS from flickr well ill try to explain cuz in video everything kinda a mess like your photo in taz reply i got my calendar stacked about half way with various brick as a floor shelf whatever but the air comes in the back same as the front basically little lower actually...through actual duct of a dryer an pushes mostly up through the brick, an back. Pretty even
 
Stacy E. Apelt - Bladesmith said:
Can you explain what you mean by "air from the back and gas from the top"?
Photos would help a lot.
Click to expand...
Oh an no they are not next to each other i seen that in many an tried but maybe pushing to much air or. I know this will sound stupid but if the part is in to close vacinity of fire an combustion whatnot is it possible to be cooler then the abient areas of the forge?
 
Taz said:
I think he may have an air source blowing in from the back into the forge instead of having the air and gas going together to mix? I am curious to see pictures as well! I wonder if the air is blowing the heat out the front and not circulating it through the forge???

With a blown air/forced air forge (ie ribbon burner or mini ribbon as I call my setup), the air/propane mix in the tubing and come out as a jet from the nozzles; it's not a burner for the flame and a separate air source? With a Venturi burner, the air is sucked in from outside the forge to mix with the propane; controlling the air mixture controls the flame and atmosphere inside the forge.

A "central air" setup using a fan to blow the air around the forge or like a convection oven/air fryer may not work as well in this application since items in the forge will disrupt the air flow more. With the fan blowing the heat from the burner from the back of the forge to the front, the rear portion of the forge won't heat up well since the hot air is being pushed out of the forge.

This is my "QBert" forge. On the left is a port to put my nozzle into. The air comes from a blower under the forge to tubing and the propane comes into the tubing at an elbow connection. The nozzle has numerous stainless tubes welded into it, which creates numerous mini jets. It's similar to a ribbon burner, but the nozzle is around 1.75" diameter or so. I can unscrew the nozzle and reweld tubes in or replace the entire nozzle when it gets too burned out. This allows the gas and air to mix well in the tubing and get ignited

View attachment 2895383

The nozzle:
View attachment 2895382

View attachment 2895381

Most venturi forges have the burner(s) mounted at the top or side and are open ended. Venturi burners suck air into the burner to mix with the gas in the nozzle. Even coal forges with blowers have the air blowing through the flame itself. It's about blowing air through the flame, or mixing the gas and air flow.

Putting a fan at the back end of a Venturi type forge doesn't do anything except blow the heat out the front. If you are doing forced air forge, the air and gas need to mix at the flame to be effective, not coming from different areas.
Click to expand...
 
And there the factor that my weed burner venturi flo is slightly dampered at the mount so its significant unburnt fuel all up in there dont wanna let that flame go out for a second
 
You usually need the BB Code link to post pictures from an online photo hosting site:

RevDevil

Thread 'How do I post pictures from a.....'

Whatever kind of device you have? There may be an app for that. Look for a picture/file sharing host. Prefreably one that is NOT porn related. You can use imgur.com, flickr, or any others. There are tutorials online on the "How To" part, search for it. In the mean time, searching here for threads on the subject is also a good idea. It's not a new question by any means.


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