RE: RP and Jewelry Question: Complete burnoff by the JUMA "Blackrohr" Rapid Burnout System

From: Pierce, Steven E (steven.e.pierce@boeing.com)
Date: Thu Oct 30 2003 - 17:33:38 EET


I didn't see anything addressing the ash issue... Is there any data you may be able to share?

-----Original Message-----
From: Steven Adler ( A3DM ) [mailto:adler@a3dm.com]
Sent: Wednesday, October 29, 2003 1:56 PM
To: 'Mazouri'; sheba@bathseheba.com; stilton@protoprod.com
Cc: rp-ml@rapid.lpt.fi
Subject: RE: RP and Jewelry Question: Complete burnoff by the JUMA "Blackrohr" Rapid Burnout System

Now here is something very interesting...anyone have one of these JUMA systems in operation....?

 

 

 

 

Steven Adler

Automated 3D Modeling, Inc

www.a3dm.com

adler@a3dm.com

603.433.4369

>>>>>-----Original Message-----
>>>>>From: Mazouri [mailto:JUMA-Ellwangen@t-online.de]
>>>>>Sent: Wednesday, October 29, 2003 10:44 AM
>>>>>To: sheba@bathseheba.com; stilton@protoprod.com; adler@a3dm.com
>>>>>Cc: rp-ml@rapid.lpt.fi
>>>>>Subject: RP and Jewelry Question: Complete burnoff by the
>>>>>JUMA "Blackrohr" Rapid Burnout System
>>>>>
>>>>>
>>>>>Environment friendly and energy-saving burnout process for
>>>>>metal casting in
>>>>>rapid prototyping and foundries.
>>>>>
>>>>>
>>>>>
>>>>>Direct investment cast, preferably under vacuum, can
>>>>>indeed be used to turn any
>>>>>RP part into a piece of metal. For this the RP pattern is
>>>>>used as the investment
>>>>>for making a ceramic mould around it and then burning off
>>>>>the RP pattern.
>>>>>
>>>>>With the unique Blackrohr Rapid Burnout System the burn
>>>>>out protocol for any RP
>>>>>material no longer has to be long and using high temperatures:
>>>>>
>>>>>The Blackrohr Rapid Burnout System is an additional unit
>>>>>for furnaces for the
>>>>>complete, smokeless and odourless combustion of patterns
>>>>>made of prototype
>>>>>materials at very low temperatures of max. 250 centigrades
>>>>>(480F). With
>>>>>wax/thermal polymers it's significantly lower and shorter.
>>>>>
>>>>>By this method all 3D patterns from Styropor, polystyrene (SLS),
>>>>>SLA/STL-materials, thermal polymers, LOM laminates, PA,
>>>>>ABS, and even from wax
>>>>>or resin infiltrated starch/cellulose powder used on 3D
>>>>>printers can be embedded
>>>>>for the lost pattern investment casting of metal parts
>>>>>directly into plaster-,
>>>>>ceramic- or sand-moulds and completely burned out (fused)
>>>>>at temperatures of
>>>>>around 250 centigrade without residue nor fume.
>>>>>
>>>>>The JUMA Blackrohr Rapid Burnout System (design patent
>>>>>registered, and European
>>>>>patent pending), which won an EuroMold 2001 and several
>>>>>other awards for
>>>>>excellent innovation, blows an especially prepared air
>>>>>into the chamber of the
>>>>>kiln. By this process the air becomes an aggressive gas
>>>>>which compulsorily leads
>>>>>all hard to burn materials to a chemical combustion
>>>>>reaction. Developing
>>>>>pollutants are neutralized likewise. A catalyst is not
>>>>>necessary either.
>>>>>
>>>>>"Although for annealing the ceramic mould higher
>>>>>temperatures may be necessary
>>>>>we managed to develop an environment friendly and
>>>>>energy-saving system for the
>>>>>complete burnoff of RP patterns at a temperature of just
>>>>>250 centigrade. Others
>>>>>couldn't succeed at 1450 centigrade (2642F)," told us
>>>>>Dipl.-Ing. A. Mazouri,
>>>>>the inventor and managing director of JUMA Sonderanlagenbau GmbH.
>>>>>
>>>>>The system is applicable for rapid prototyping, foundries,
>>>>>jewellery industry
>>>>>and dental furnaces and even for incinerators.
>>>>>
>>>>>Use of the JUMA Blackrohr Rapid Burnout System will result
>>>>>in low combustion
>>>>>temperatures for all materials, short burnout cycles by
>>>>>fast fusion beginning
>>>>>already during heating up, residue-free fuse results at
>>>>>only a fraction of the
>>>>>energy consumption, as well as reduced gasses and fumes
>>>>>for your health.
>>>>>
>>>>>Casting under vacuum is recommended to produce prototype
>>>>>parts or short runs
>>>>>having no bubbles and no internal voids.
>>>>>
>>>>>JUMA Sonderanlagenbau GmbH at D - 73479 Ellwangen,
>>>>>Germany, is an innovative
>>>>>enterprise which particularly develops and manufactures
>>>>>Rapid Prototyping
>>>>>Systems and modern machines and systems (reaction resin
>>>>>machines, silicone and
>>>>>PU-dosing pumps and complete plants for vacuum casting of
>>>>>plastic and metal
>>>>>parts) for industrial model and prototype shops.
>>>>>
>>>>>For further information just call me or visit us at
>>>>>EuroMold, 3.-6.12.2003,
>>>>>Frankfurt, Germany, HALL 9.0, BOOTH A.67
>>>>>
>>>>>Peter Hagen
>>>>>
>>>>>JUMA Sonderanlagenbau GmbH
>>>>>Roehlinger Strasse 15
>>>>>D-73479 Ellwangen
>>>>>Germany
>>>>>Tel.: +49(0)7961-5662-37 Fax: -38
>>>>>
>>>>>



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