METHOD OF MANUFACTURING THERMOELECTRIC MODULE

    公开(公告)号:EP2923386B1

    公开(公告)日:2018-10-17

    申请号:EP13803260.2

    申请日:2013-11-19

    IPC分类号: H01L35/34 B22C9/04 B22C7/02

    摘要: A manufacturing method of a thermoelectric module comprises forming a first wax model in which the first thermoelectric elements are arranged in a predetermined pattern, forming a first mold from the first wax model, casting a group of the first thermoelectric elements by pouring molten metal of a first thermoelectric material into the first mold to solidify the molten metal, forming a second wax model that represents arrangement of second thermoelectric elements to form the thermoelectric module by being connected with the first thermoelectric elements, forming a second mold from the second wax model, casting the group of the second thermoelectric elements by pouring molten metal of a second thermoelectric material into the second mold to solidify the molten metal, and connecting the group of the first thermoelectric elements with the group of the second thermoelectric elements electrically in series.

    WAX INJECTION MOLDING DEVICE AND CASTING METHOD FOR ARTICLE USING WAX INJECTION MOLDING DEVICE

    公开(公告)号:EP3375543A1

    公开(公告)日:2018-09-19

    申请号:EP15891027.3

    申请日:2015-11-11

    发明人: KUBO, Chikanari

    摘要: Disclosed is a wax mold injection molding apparatus 10A capable of efficiently performing vacuuming and/or wax injection, reducing operation time of the apparatus, and improving a wax mold quality, and a method of casting articles using the same. The wax mold injection molding apparatus 10A includes a vacuum chamber 50, a nozzle 31 connected to the vacuum chamber 50, and a pressure sensor 51 for measuring a pressure P in the vacuum chamber 50, and is capable of vacuuming a mold 3 by using the vacuum chamber 50 through the nozzle 31, and wax injection to the mold 3 after the vacuuming. An operation control unit 60 controls the vacuuming and/or the wax injection based on the pressure P in the vacuum chamber 50. In a preferable embodiment, the operation control unit 60 controls execution time of the vacuuming and/or the wax injection based on a vacuum voltage Vg of the mold 3 calculated from the pressure P in the vacuum chamber 50.

    Investment casting cores and methods

    公开(公告)号:EP2191911B1

    公开(公告)日:2018-08-01

    申请号:EP09252636.7

    申请日:2009-11-17

    IPC分类号: B22C7/02 B22C9/04 B22C9/10

    CPC分类号: B22C7/02 B22C9/04 B22C9/103

    摘要: An investment casting core combination (30) includes a metallic casting core (32) and a ceramic feedcore (31). A first region (48) of the metallic casting core is embedded in the ceramic feedcore. A mating edge portion of the metallic casting core includes a number of projections. The first region is along at least some of the projections (54). A number of recesses (56) span gaps between adjacent projections. The ceramic feedcore includes a number of compartments (72) respectively receiving the metallic casting core projections. The ceramic feedcore further includes a number of portions (74) between the compartments and respectively received in the metallic casting core recesses.