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Using dry nitrogen to degass

(4)
Hello David, I haven't tried using dry nitrogen or argon gas for degassing but welding CO2 seems to work just fine. I use the CO2 because I have it on hand. It
Rupert
4
posts
9:03 AM

Blazer torch

(173)
Another idea that looks a lot like a step or stack furnace would be using a scraper furnace that feeds directly into the reverb tub. Then the reverb could be
dhlh1984
173
posts
7:47 AM

Steel melting; not smelting.

(40)
I'm involved in the restoration to operation of a 1944 steam locomotive (557.alaskarails.org). For a steam locomotive, this design was probably fairly early in
Dick Morris
40
posts
May 15

small batch cast iron

(13)
Arthur: Please refrain from sending this sort of thing to the group.......... I understand your desire to share the "help me I'm a slave" story...... As you
StoneTool
13
posts
Apr 22

burner question

(48)
I just looked at it with the best magnification I can easily do at home, 30x, and the grains all look sharp and mostly triangular, so that's good to know.
Blair Bostick
48
posts
Apr 22

Brazing hearth bricks using sand and sodium silicate

(8)
LanceThanks for the info, it is always best to be informed. I'll give it a try.Nelson Collar From: "Lance Eggleston wheezer606@verizon.net [hobbicast]"
Nelson Collar
8
posts
Apr 13

anyone make their own crucibles (for brass / bronze)

(42)
thanks John I will check it out. I am pouring tomorrow - will take a note of how well the SFS stuff I bought works - had too much porosity last time.
caryncbreeef
42
posts
Apr 12

Rust on welding wire

(8)
I went to buying small rolls made in America rather than China and problem solved. From: hobbicast@yahoogroups.com To: hobbicast@yahoogroups.com Date: Mon, 6
Larry Davis
8
posts
Apr 6

Inventing for agriculture

(41)
Mikey: Once you get larger than a 4", the body size becomes an issue, and they need to be designed like reduced versions of the 7" and 9" grinders with a
StoneTool
41
posts
Mar 29
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