EP 3357602 B1 20210303 - SHELL MOLD SINTERING METHOD AND APPARATUS
Title (en)
SHELL MOLD SINTERING METHOD AND APPARATUS
Title (de)
VERFAHREN UND VORRICHTUNG ZUM SINTERN EINER SCHALENFORM
Title (fr)
PROCÉDÉ ET APPAREIL DE FRITTAGE DE MOULE-CARAPACE
Publication
Application
Priority
- CN 201610411520 A 20160612
- CN 2016097555 W 20160831
Abstract (en)
[origin: EP3357602A1] A shell mold sintering method, comprising the following steps: S1. producing a shell mold, wherein carbon powder needs to be added during a shell mold production process; S2. dewaxing the produced shell mold, and then placing the mold into a sintering apparatus while ensuring that there is adequate oxygen content in a sintering furnace and keeping the temperature in the sintering furnace between 600#-800#, until residual wax in the shell mold is completely burned off; S3. reducing oxygen content in the sintering furnace, and increasing the temperature until a sintering temperature of the shell mold is reached; S4. in said low-oxygen or anaerobic environment, keeping the temperature within the sintering furnace at the sintering temperature of the shell mold, until sintering of the shell mold is completed. A shell mold sintering apparatus, comprising: a shell mold placement platform (1), a heating apparatus (2), an air-blowing apparatus (3), an exhaust flue (4), a control system (5), a sintering chamber (6) and a closure door (7); the control system controls the heating apparatus, the air-blowing apparatus and the exhaust flue on the basis of said shell mold sintering method so as to implement shell mold sintering operations. Using the sintering method and apparatus may improve stability of quality and production efficiency, while reducing production cost.
IPC 8 full level
B22C 9/04 (2006.01); B22C 1/16 (2006.01); F27B 5/04 (2006.01); F27B 5/16 (2006.01); F27B 17/00 (2006.01)
CPC (source: CN EP KR)
B22C 1/165 (2013.01 - EP); B22C 7/02 (2013.01 - CN EP KR); B22C 9/04 (2013.01 - EP KR); B22C 9/043 (2013.01 - EP); F27B 5/04 (2013.01 - EP); F27B 5/16 (2013.01 - EP); F27B 17/0016 (2013.01 - EP)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 3357602 A1 20180808; EP 3357602 A4 20190410; EP 3357602 B1 20210303; CN 105903898 A 20160831; CN 105903898 B 20171205; KR 102069459 B1 20200122; KR 20180074757 A 20180703; TW 201742852 A 20171216; TW I622569 B 20180501; WO 2017215127 A1 20171221
DOCDB simple family (application)
EP 16905240 A 20160831; CN 2016097555 W 20160831; CN 201610411520 A 20160612; KR 20187014669 A 20160831; TW 105127314 A 20160825