公开(公告)号：US20140290892A1

公开(公告)日：2014-10-02

申请号：US14223573

申请日：2014-03-24

Applicant: General Electric Company

Inventor： Zhaoping WU ,  Brian Victor MOORE ,  Michael Douglas ARNETT ,  Dejia WANG ,  Junyoung PARK ,  Yanfei GU ,  Qi ZHAO

IPC: B22C7/02 ,  B22C3/00 ,  B01J23/10 ,  B22C9/04

CPC classification number: B22C7/023 ,  B01J23/002 ,  B01J23/10 ,  B01J2523/00 ,  B22C3/00 ,  B22C9/046 ,  B01J2523/25 ,  B01J2523/3712 ,  B01J2523/48

Abstract: Refractory slurry for use in coating a foam cluster to provide a foam pattern for lost foam casting is provided. The slurry includes a catalyst capable of catalyzing reactions for vaporizing the foam cluster. A foam pattern with a refractory coating including the catalyst and processes for preparing the foam pattern and using the foam pattern are also provided.

Abstract translation: 提供了用于涂覆泡沫簇以提供用于失去泡沫浇铸的泡沫图案的耐火浆料。 浆料包括能够催化泡沫簇蒸发反应的催化剂。 还提供了具有包括催化剂的耐火涂层的泡沫图案和用于制备泡沫图案和使用泡沫图案的方法。

公开(公告)号：US20170314105A1

公开(公告)日：2017-11-02

申请号：US15142732

申请日：2016-04-29

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Junyoung PARK ,  Brian Victor MOORE

IPC: C22C37/10 ,  C22C37/04 ,  C22C33/10 ,  F27B17/00 ,  C22C33/06

CPC classification number: C22C37/10 ,  B22D1/00 ,  B22D41/00 ,  C21C1/105 ,  C22C33/06 ,  C22C33/10 ,  C22C37/04 ,  F27B17/0016

Abstract: A ductile iron composition including, by weight: about 3.1% to about 3.6% C; about 3.5% to about 4.0% Si; about 0.035% to about 0.050% Mg; about 0.001% to about 0.004% Ce; up to about 0.005% Sb; about 0.008% to about 0.016% S; up to about 0.04% P; up to about 0.3% Mn; and balance iron and incidental impurities; The ductile iron composition includes a ratio of Sb/Ce greater than or equal to about 1.25, has a ferritic microstructure and graphite nodules, and greater than about 65% of the graphite nodules having a highly spherical geometry. A method and apparatus for forming a ductile iron composition are also disclosed.