Thread: Furnace for cast iron

that was cool

Great video. Probably the best I have seen on building a furnace.

Where did you get your insulation from?

Regards Floyd

Very nice.... it that a cast iron pour in the video?

Hi giesser,

Your first post, welcome aboard.
I like your work/videos, I spotted you on youtube some time back and have been checking on your new vids as they came up.

I've been casting Aluminium and a little bit of brass and bronze on and off for about 8 years now and bought a couple of clay graphite crucibles about 5 years ago just so I could try cast iron, unfortunately that's as far as I progressed as I haven't gotten around to building a furnace capable of withstanding a cast iron heat.

My idea was to build a small furnace using a Kaowool equivalent that I can get from my crucible supplier. So a couple of weeks ago when I saw your video, as you've linked too, I got the urge again to try cast iron, mightn't happen anytime soon though.

If you're the bloke I'm thinking of, I was impressed with your waste oil burner set up from some years ago and was going to give that a go too(on my current furnace) but didn't get to it.

Did you ever write an article/articles for Australian Model Engineer?, used to buy them once upon a time, should subscribe again I suppose.

Cheers.

Good stuff. I've seen some of your videos via the madmodder forum.

I would love to try casting one day but aluminium.

Thank you for looking at the video.

I was pouring cast iron in the video.

Kaowool can be found in the yellow pages under insulation/refractories.

Originally Posted by giesser

Thank you for looking at the video.

I was pouring cast iron in the video.

Kaowool can be found in the yellow pages under insulation/refractories.

How many melts can you get before you need to replace the kaowool?

When melting aluminium it would last a long time, but melting cast iron expect less. Crucibles are the same deal they will not last as long melting cast iron but with aluminium they will last a long time.

That was awesome!!

I used to repair the gantry cranes at Weir foundry in Artarmon, Sydney and spent hours just watching them melt and pour

Hi,

Out of interest how much did it cost all up from start to finish?

Thanks

I had some kaowool but had to buy the zircon paint. It was $150. To buy all the parts needed it would cost about $250, you could make many furnaces from whats left over.