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DE10335735A1 - Recycling material of e.g. automobile wax models for re-use in laser sintering or fine nozzle three-dimensional printing, filters material under pressure, in hot molten state - Google Patents

Recycling material of e.g. automobile wax models for re-use in laser sintering or fine nozzle three-dimensional printing, filters material under pressure, in hot molten state Download PDF

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Publication number
DE10335735A1
DE10335735A1 DE2003135735 DE10335735A DE10335735A1 DE 10335735 A1 DE10335735 A1 DE 10335735A1 DE 2003135735 DE2003135735 DE 2003135735 DE 10335735 A DE10335735 A DE 10335735A DE 10335735 A1 DE10335735 A1 DE 10335735A1
Authority
DE
Germany
Prior art keywords
laser sintering
molten state
under pressure
dimensional printing
hot molten
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
DE2003135735
Other languages
German (de)
Inventor
Jürgen Dipl.-Ing. Weber (FH)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mercedes Benz Group AG
Original Assignee
DaimlerChrysler AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by DaimlerChrysler AG filed Critical DaimlerChrysler AG
Priority to DE2003135735 priority Critical patent/DE10335735A1/en
Publication of DE10335735A1 publication Critical patent/DE10335735A1/en
Withdrawn legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J11/00—Recovery or working-up of waste materials
    • C08J11/04—Recovery or working-up of waste materials of polymers
    • C08J11/06—Recovery or working-up of waste materials of polymers without chemical reactions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
    • B29B17/0026—Recovery of plastics or other constituents of waste material containing plastics by agglomeration or compacting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/30—Auxiliary operations or equipment
    • B29C64/357—Recycling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y40/00—Auxiliary operations or equipment, e.g. for material handling
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2391/00—Characterised by the use of oils, fats or waxes; Derivatives thereof
    • C08J2391/06—Waxes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/62—Plastics recycling; Rubber recycling

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Environmental & Geological Engineering (AREA)

Abstract

The wax model material, is pressure-filtered in the hot, molten state.

Description

Die Erfindung betrifft ein Verfahren zur Wiederaufbereitung eines Wachsmodellwerkstoffes nach dem Oberbegriff des Patentanspruchs 1.The The invention relates to a process for the recycling of a wax model material according to the preamble of claim 1.

Bei einem solchen Verfahren beschäftigt sich die Erfindung mit dem Problem, das wiederaufbereitete Material derart frei von Verunreinigungen halten zu können, dass es erneut für ein gattungsgemäßes, mit feinen Düsen arbeitendes 3D-Printing-Verfahren oder ein Lasersinterverfahren einsetzbar ist.at engaged in such a procedure the invention with the problem, the recycled material To keep so free of impurities that it again for a generic, with fine nozzles working 3D printing process or a laser sintering method can be used.

Gelöst wird dieses Problem dadurch, dass das Wachsmodellmaterial geschmolzen und in heißem Zustand druckgefiltert wird. Dabei erfolgt die Filtration entsprechend den kennzeichnenden Merkmalen des Anspruchs 2.Is solved this problem is that the wax model material is melted and in hot Condition is pressure filtered. The filtration is carried out accordingly the characterizing features of claim 2.

Die Erfindung beruht auf dem allgemeinen Gedanken, erkannt zu haben, dass das Grundmaterial eines nach dem gattungsgemäßen Verfahren hergestellten Wachsmodells bei einer ausreichenden Abtrennung von Verunreinigungen erneut einsetzbar ist, wodurch bei der Herstellung gattungsgemäßer Wachsmodelle die Herstellungskosten aufgrund wiederaufbereiteten Materials erheblich gesenkt werden können.The Invention is based on the general idea of having recognized that the base material of a manufactured according to the generic method Wax model with sufficient separation of impurities is reusable, which in the production of generic wax models the manufacturing costs due to reprocessed material considerably can be lowered.

Zwar ist es aus DE 22 57 917 A1 bereits bekannt, beispielsweise Polyethylenwachse durch eine Druckfiltration bei einer Temperatur von etwa 140° aufzubereiten, jedoch enthält diese Druckschrift keinen Hinweis darauf, mit einem solchen Verfah ren eine Wiederaufbereitung des Grundstoffes eines durch 3D-Printing oder durch Lasersintern von Wachsmaterial hergestellten Wachsmodelles zu betreiben oder betreiben zu können.Although it is off DE 22 57 917 A1 already known, for example, to process polyethylene waxes by a pressure filtration at a temperature of about 140 °, but this document contains no indication to operate or operate a reprocessing of the base material of a manufactured by 3D printing or by laser sintering of waxy wax model with such procedural ren to be able to.

Auch aus EP 0 391 660 B1 an sich bereits bekannte Filtrationskörper aus Polytetrafluorethylen sind dort nicht zur Anwendung bei einem erfindungsgemäßen Wiederaufbereitungsverfahren beschrieben.Also from EP 0 391 660 B1 Filtration bodies made of polytetrafluoroethylene which are already known per se are not described there for use in a recycling process according to the invention.

Claims (2)

Verfahren zur Wiederaufbereitung des Grundwerkstoffes eines durch 3D-Printing oder durch Lasersintern von Wachsmaterial hergestellten Wachsmodells zur Wiederverwendung dieses Werkstoffes bei einem gleichen Wachsmodellherstellungsprozess, dadurch gekennzeichnet, dass das Wachsmodellmaterial geschmolzen und in heißem Zustand druckgefiltert wird.A method for recycling the base material of a wax model produced by 3D printing or by laser sintering of wax material for reuse of this material in a same wax modeling process, characterized in that the wax model material is melted and pressure filtered in a hot state. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die Filtration erfolgt – bei einer Temperatur von etwa 110°, – unter einer Druckdifferenz von etwa 6 bar, – mit einem porösen Filtrationskörper aus Polytetrafluorethylen mit Porengrößen bis maximal 0,0002 mm oder aus regenerierter Zellulose.Method according to claim 1, characterized in that that the filtration takes place - at a temperature of about 110 °, - under a pressure difference of about 6 bar, - With a porous filtration body Polytetrafluoroethylene with pore sizes up to 0.0002 mm or max made of regenerated cellulose.
DE2003135735 2003-08-05 2003-08-05 Recycling material of e.g. automobile wax models for re-use in laser sintering or fine nozzle three-dimensional printing, filters material under pressure, in hot molten state Withdrawn DE10335735A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE2003135735 DE10335735A1 (en) 2003-08-05 2003-08-05 Recycling material of e.g. automobile wax models for re-use in laser sintering or fine nozzle three-dimensional printing, filters material under pressure, in hot molten state

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2003135735 DE10335735A1 (en) 2003-08-05 2003-08-05 Recycling material of e.g. automobile wax models for re-use in laser sintering or fine nozzle three-dimensional printing, filters material under pressure, in hot molten state

Publications (1)

Publication Number Publication Date
DE10335735A1 true DE10335735A1 (en) 2005-02-24

Family

ID=34089078

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2003135735 Withdrawn DE10335735A1 (en) 2003-08-05 2003-08-05 Recycling material of e.g. automobile wax models for re-use in laser sintering or fine nozzle three-dimensional printing, filters material under pressure, in hot molten state

Country Status (1)

Country Link
DE (1) DE10335735A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10350820B2 (en) 2013-10-21 2019-07-16 Made In Space, Inc. Remote operations of additive manufacturing devices
US10401832B2 (en) 2013-10-21 2019-09-03 Made In Space, Inc. Terrestrial and space-based manufacturing systems
US10836108B1 (en) 2017-06-30 2020-11-17 Made In Space, Inc. System and method for monitoring and inspection of feedstock material for direct feedback into a deposition process

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2257917C3 (en) * 1972-11-25 1979-01-25 Hoechst Ag, 6000 Frankfurt Process for processing polyethylene waxes
EP0391660B1 (en) * 1989-04-07 1994-01-12 W.L. Gore & Associates, Inc. Filter laminates

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2257917C3 (en) * 1972-11-25 1979-01-25 Hoechst Ag, 6000 Frankfurt Process for processing polyethylene waxes
EP0391660B1 (en) * 1989-04-07 1994-01-12 W.L. Gore & Associates, Inc. Filter laminates

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10350820B2 (en) 2013-10-21 2019-07-16 Made In Space, Inc. Remote operations of additive manufacturing devices
US10401832B2 (en) 2013-10-21 2019-09-03 Made In Space, Inc. Terrestrial and space-based manufacturing systems
US10725451B2 (en) 2013-10-21 2020-07-28 Made In Space, Inc. Terrestrial and space-based manufacturing systems
US11077607B2 (en) 2013-10-21 2021-08-03 Made In Space, Inc. Manufacturing in microgravity and varying external force environments
US10836108B1 (en) 2017-06-30 2020-11-17 Made In Space, Inc. System and method for monitoring and inspection of feedstock material for direct feedback into a deposition process

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Legal Events

Date Code Title Description
OM8 Search report available as to paragraph 43 lit. 1 sentence 1 patent law
8127 New person/name/address of the applicant

Owner name: DAIMLERCHRYSLER AG, 70327 STUTTGART, DE

8139 Disposal/non-payment of the annual fee