MetalworkingFun Forum
Steel Crucible - Printable Version

+- MetalworkingFun Forum (http://www.metalworkingfun.com)
+-- Forum: Machining (http://www.metalworkingfun.com/forum-5.html)
+--- Forum: Welding & Casting (http://www.metalworkingfun.com/forum-9.html)
+--- Thread: Steel Crucible (/thread-153.html)

Pages: 1 2 3


Steel Crucible - doubleboost - 03-15-2012

Hi
I have a casting to do that will need more metal than my ceramic crucible will hold
A nice big steel melting pot
It will be 6 1/2 inch diamiter (that is the pipe i got given)
10 inches high (the bigest i can get in my furnace)
The material is 1/4 wall mild steel seam welded pipe
[Image: P3150015.jpg]
Cut to length and the end squared up

[Image: P3150014.jpg]

The end champherd ready for weldingDroolDroolDroolDrool
I will be melting aluminium in this , not a great amount of heat but it will need a good weld as i dont want to get my feet wetSadnoSadnoSadno
John


RE: Steel Crucible - Hopefuldave - 03-17-2012

My local PahndShop often has thinwall stainless stockpots about that size - not very durable, but would do as "disposable" crucibles, and only a couple of Quid... have lids with 'em too!

Just my ha'pennorth,
Dave H. (the other one)


RE: Steel Crucible - EdK - 03-18-2012

John,

That's a good sized chunk of pipe to be turning with no end support. I'm surprised you didn't have problems with it shifting on the chuck jaws.

Well done. Smiley-signs107

Ed


RE: Steel Crucible - doubleboost - 03-18-2012

Hi
Ed
It did not like it at all
Running it at a reosnable speed with a light cut got the job done
John


RE: Steel Crucible - doubleboost - 03-18-2012

(03-17-2012, 08:14 PM)Hopefuldave Wrote: My local PahndShop often has thinwall stainless stockpots about that size - not very durable, but would do as "disposable" crucibles, and only a couple of Quid... have lids with 'em too!

Just my ha'pennorth,
Dave H. (the other one)
Hi
Dave i would stay clear of stainless crucibles
They do not like thermal shock
I had one made fron shed10 seamless pipe it was half full of molten bronze i put a large piece in to the pot (per heated) the pot split and the bronze ran out
John


RE: Steel Crucible - DaveH - 03-18-2012

John,

This melting "lark" does seem a tad dangerous at times Slaphead
Smiley-eatdrink004
DaveH


RE: Steel Crucible - doubleboost - 04-15-2012

Hi
Lads
It is a bit on the cold side hear today a bit of welding should warm things up
Rob wilson kindly cut me a base for my crucible
This was tacked in place with a MIG welder
The job was then warmed up with a big propane torch
[Image: P4150043.jpg]
A root weld was then put in with a TIG welder
140 amps mild steel filler rod
[Image: P4150044.jpg]
[Image: P4150049.jpg]
Plenty of penatration
A bead of Mig was then ran in
160 amp 0.8 mild steel wire
[Image: P4150053.jpg]
Just to finish the job a couple of runs of MMA (stick) weld as a cap
120 amp 2.5 general purpose rod
[Image: P4150054.jpg]
A bit rub up with the grinder
[Image: P4150057.jpg]

John


RE: Steel Crucible - EdK - 04-15-2012

Nice welding job!


RE: Steel Crucible - ETC57 - 04-15-2012

Nice job on the welding John, Smiley-signs107

Ya know I never considered using a welding project to worm up my shop
but I like it!Big GrinBig GrinBig Grin

Seams I always have something to weld up!Chin

Jerry.Popcorn


RE: Steel Crucible - Highpower - 04-15-2012

Not trying to be a stick in the mud here guys, but........

For the benefit of any folks here that might be new to metalworking & welding in particular - all of this "shop warming" is being conducted with a generous amount of fresh air ventilation and proper welding fume extraction. Right guys??? Happyyes

We wouldn't want to give anyone the wrong idea about welding in a closed up shop, breathing the noxious gases generated by welding that can make you really sick... or worse. Sadno

Smiley-eatdrink004