MadModder
Home Base => Introductions => Topic started by: salvarane on November 25, 2014, 11:44:11 AM
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Hi everyone,
My name is Eugenio and my passion are into the foundry and machining shop type's Gingery Work's for self constructions.
In this post I can attach some pictures for recreation your eyes.
If you have any comments, feel free to let me know
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Hi Eugenio,
Nice to see you have found us. Pretty neat furnace you have there.
What is the home foundry scene like in Italy ?
Hope to see more of you here.
Dave. :wave:
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Thanks DavidA for your nice comments, In Italy the Foundry Backyerards isn't much diffused.
Thanks to passion Anglo American to promote this kind job through the internet, I and many other Italians can learn a work that in the past there was widespread in Italy, but unfortunately the big industry to made sure it vanishes. That's one of the reasons why I want to take this ancient knowledge and spread it as much as possible in my City : Perugia - Region : Umbria - Country : Italiy.
The furnace I built entirely alone, using refractory bricks, and a refractory clay mixed with silica sand that I left to mature for some months, for the fixing of refractory bricks.
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Welcome aboard Salvarane :thumbup:
Great pictures of your foundry project, but perhaps TOO great :clap: 640 x 480 is a far better size for people to see what you are doing
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Ok, sorry , the next images, I reduce to 640x480 Pixels
Thanks.
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other images crucible .....
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What is the situation regarding metal for you furnace ?
Is scrap expensive ?
Dave.
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In Perugia to retrieve scrapt is difficult, the only place that could provide some aluminum alloys of old engines and parts of cars is the junkyard but it is not cheap, and another place is the green areas of non-organic waste collection made available by the public service, the municipalities of Perugia, but the employees are reluctant to give some piece of alloy, the municipality once it has acquired the wreckage, it keeps them jealously and then selling them in the market of raw materials used.
I buy bars of aluminum alloy at a supplier here in Perugia, they make me good prices. The problem arises when the alloy founded several times, in fact accelerates the production of slag in the molten metal and therefore I have to be careful not to melt the metal too many times.
Thanks your answer,
Eugenio.
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Salvarane, the more times aluminium alloys are melted, the more opportunities there are for the absorption of hydrogen. This is especially so if any of your tools or crucibles are damp.
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This problem could be solved using a degasifier ?
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hi and welcum
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Thanks to let me participate in your community
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This problem could be solved using a degasifier ?
Yes but better to avoid getting it there in the first place. I used to use purple degassing tablets until I found that bubbling dry argon through worked better. I had a length of 15 mm stainless steel pipe, squashed flat at the far end, with 1 mm holes drilled in. When I took the melt from the furnace I bubbled argon through for 15 seconds and the scrubbing effect got rid of the hydrogen.
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Hi Euginio, welcome to the forum and thanks for all the photos, looks like you will fit in fine :thumbup:
Keep up with the projects.
Cheers Mick.
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Hi Euginio
Welcome to the forum
Nice to see some casting pictures
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Hi Eugenio welcome
Have you tried asking for old dented/ cracked Alloy wheels on Facebook?
I noticed you have FREECYCLE set up for your area but only 3 members and no posts. That is a real shame because it is a great source for broken aluminium items here in the UK.
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I do not have a facebook account.
thank you very much, I do not know freecycle network, now I want familiarize with the goups in the site.
I have some scrap on a corner in the garage, sometimes friends bring a few pieces for molding metal.
But I'm interested in spreading the scientific culture, and for that, I opened this channel on youtube, good vision at all:
http://www.youtube.com/user/salvarane/playlists?flow=grid&view=1
Your comments are well come,
thanks Eugenio.
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This problem could be solved using a degasifier ?
Yes but better to avoid getting it there in the first place. I used to use purple degassing tablets until I found that bubbling dry argon through worked better. I had a length of 15 mm stainless steel pipe, squashed flat at the far end, with 1 mm holes drilled in. When I took the melt from the furnace I bubbled argon through for 15 seconds and the scrubbing effect got rid of the hydrogen.
Thanks awemawson, I contacted a company here in Italy that sells products for foundry, have as a product for degassing tablets self-sinking and ecological, I think of doing some tests.
I noticed that the bad ventilation creates cavities in the surfaces of the casts, but I think with the experience will improve everything.
Eugenio.
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Hi Eugenio, and welcome to the forum.
Thank you for posting the pictures of your foundry; I shall be setting up to cast aluminium in the Spring and I will copy some of your ideas. We Eugenios and Eugenes must support each other!
Eug
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ok Eugene, I look forward to starting work.
Eugenio
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Hi Eugenio and hello from a novice, really like you casting pictures and I am hoping to go down that route next year.
Regards
Tom