Title:
【発明の名称】粉体状出発原料から構成部材を製造する方法及びそのために適当な抽出機
Document Type and Number:
Japanese Patent JP2003528985
Kind Code:
A
Abstract:
According to a known method for producing a component by means of a powdery starting material, powder is mixed with auxiliaries comprising binding agents, whereby a free-flowing mass is produced. A green body is produced from the mass by means of powder injection moulding. A portion of the auxiliaries is extracted by heating the green body in a container and exposing said body to a stream of solvents. The green body is sintered, whereby the component is produced. The aim of the invention is to enable fast and gentle extraction for releasing green bodies which are produced by means of powder injection moulding. According to the invention, the extraction comprises a heating-up phase during which the temperature of the green body is permanently or gradually increased and the green body is overflown by solvent in the form of a compressed, supercritical treatment gas. An extractor that is suitable for carrying out said method is characterised by a pressure sealed housing that is provided with at least one lateral limiting wall and encloses a treatment chamber for receiving a carrier element which is loaded with a plurality of green bodies. Said housing is provided with a lock-up load and removal opening for the green bodies. Said opening is configured in the lateral limiting wall as a passage for the carrier element.
Inventors:
Thomas Berger
Helibelt Dealques
Henry Court
Helibelt Dealques
Henry Court
Application Number:
JP2001572244A
Publication Date:
September 30, 2003
Filing Date:
March 30, 2001
Export Citation:
Assignee:
Metzer Griesheim Gezershyaft Mitz Besien Renktel Haftung
Ude Hoch Druk Tehnik Gesellschaft Mitt Beschlenktel Haftung
Ude Hoch Druk Tehnik Gesellschaft Mitt Beschlenktel Haftung
International Classes:
B01D11/02; B22F1/00; B22F3/02; B22F3/10; B22F3/22; C04B35/638; F27D5/00; F27D13/00; (IPC1-7): B22F3/10; B22F3/02; C04B35/638
Attorney, Agent or Firm:
Toshio Yano (4 outside)