temperature chart

J.Marsillo

J.Marsillo

Joined
Nov 8, 2000
Messages
1,255
Hi all,i saw this chart in a metalurgy book i got at school.http://www.tempil.com/PDF/Basic_Guide.pdf

i thought it was one of the better ones i've seen.

Joe
Oh yeah ive been meaning to ask this,can you use a buffing belt rather than a wheel? or not power buff at all? the way iv'e read about the devil buffing wheel i'd like to skip that stage. :confused:
thanks for all the insight
 
That chart has been around for many years !!! It's very useful.
 
Hey Joe, the buffing wheel can be a useful tool - don't discount it just yet. You just have to know how to use one.
1. Make sure it is mounted to a pedestal.
2. Get a slow-speed buffer. 1800rpm is plenty.
3. Always use the bottom 25% of the buffing wheel, and keep the point away from you while buffing. Never buff with edge up or point up.
4. Wear gloves.
5. Never buff while tired or under the influence.

The rest is totally common sense. :thumbup:
 
I agree don't discount them. I am very cautious of mine. I have a very weak model bench grinder. 6 inch (150mm) on the end with the wire wheel I can stall the motor.

It scares me but sometimes I want to use it. May be practice buffing a round rod. Wear safety gear / glasses. start with a length about a foot or 305mm long so you can get a good grip with both hands. use the bottom of the wheel and see how you go.

Alternatives to these dangerous items is a worn out 600grit or finner belt load it up with buffing soap light pressure only will buff to a certain degree. Or 1200 grit of finer wet and dry paper when you are close don't put any water on it. the fine dust will clog the paper and will polish the surface brighter than a satan finish . I never went long enough to see how good I stopped when happy with the finish,.

Keep that chart handy when heat colouring guards etc it can give you a guide to the tem you want to run your heater to. SOme colours can be obtained in a kitchen cooking oven.
 
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