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casting on ice patterns

dorosh

Plastic
Joined
May 14, 2012
Location
Ukraine, Kiev
Lost Foam Casting Process in Kiev (Ukraine)

It is advantageous process for small-scale production of castings.
Production of metal castings in Kiev (Ukraine) using the method of Lost Foam Casting Process, and equipping of foundries. The quality of shaped castings, economic, environmental and production of high culture today there is no alternative to casting for Lost Foam Process with patterns of the foam. Physical andTechnological Institute of Metalsand Alloys of NASU,
Department of Mould Formation Processes/. Vlad, [email protected]
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surplusjohn

Diamond
Joined
Apr 11, 2002
Location
Syracuse, NY USA
in Design World Mag this week there is an artical on lost paper casting, however it is so poorly written I am not sure that is what is on. but anyways i gather it is using a 3d printer that builds up a pattern in paper and that gets invested and burned out. I assume it is using the process where paper gets laminated and laser cut to build up a form, but again, the artical appears to be written by someone who has never seen a casting.
 

dorosh

Plastic
Joined
May 14, 2012
Location
Ukraine, Kiev
Процес літання загубленої піни з Києва
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Joined
Aug 20, 2006
Location
Hesperia, SoCal
Post #1 of the ice investments is facinating, especially in a region where the medium water and the setting agent, cold are abundant.

The first pic of an ice pattern from an iron mold is excellent. It appears that the process/medium of the investment material needs some attention to detail but that solved, should lead to an inexpensive process of producing accurate investment castings, especially if the production of molds and and the iron casting processes could be separated seasonally.

It appears as though the ice pattern degrades as heat generated by the setting of the refractory plaster causes surface melting before the plaster completely solidifies. I'd think that's a solvable problem with promise for an emerging industry for a people fighting hard to recover from an about-face of ideology, in a region rich in fuel and ore deposits.

Even if that cannot be solved, clearly they are producing very near net size with inexpensive low tech at the foundry, a laudable goal. Just make the ice a little fatter.

The contrast of melting ice vs the wholesale burning of polystyrene would be a good thing for global air quality as well. The former fully reclaimed and the later, an unrenewable resource converted into harmful atmospheric gasses with zero reclamation possible.

Bob
 

magneticanomaly

Titanium
Joined
Mar 22, 2007
Location
On Elk Mountain, West Virginia, USA
Looks like a very busy foundry! Congratulations!

What material do you use to make the mold (investment) around the ice pattern? I think plaster (gypsum, CaSO4·2H2O) would set too slowly at freezing temperature and the pattern would melt too fast? Also you can pour aluminum into plaster mold, but I do not think it will stand temperature of bronze or iron. I would like to know what you use.
 

Toms Wheels

Titanium
Joined
Dec 30, 2005
Location
Jersey Shore
There are some super strong folks there in Ukaraine, those Ice cores, some must weigh a couple hundred pounds made of ice, But they hold them as if they were as light as in made of expanded foam, WOW!
 

dorosh

Plastic
Joined
May 14, 2012
Location
Ukraine, Kiev
Розширення сфери застосування процесу Lost FOAM.
Дедалі більше бажаючих оновити ливарне виробництво під цей економічний процес, а також розширити наші ливарні потужності в Києві, оскільки кількість замовлень зростає.
Адже альтернативи цій технології немає. Пишіть [email protected]
Більше прикладів: IMG_20210920_115258.jpg 3д.jpg
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dorosh

Plastic
Joined
May 14, 2012
Location
Ukraine, Kiev
Дивіться чудові приклади процесу лиття з пінопласту:
задавайте мені запитання на e-mail: [email protected] gmail.com
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