公开(公告)号：US20080014459A1

公开(公告)日：2008-01-17

申请号：US11787431

申请日：2007-04-16

申请人： Brian Przeslawski ,  Rajeev Naik

发明人： Brian Przeslawski ,  Rajeev Naik

IPC分类号： B22D25/00 ,  B22D23/00

CPC分类号： B22C9/04 ,  B22C9/08 ,  C30B11/002 ,  C30B29/52 ,  Y10T428/12229

摘要： Method and apparatus for casting molten metal or alloy into a plurality of molds that are connected by mold ingate passages in melt flow communication to a melt supply passage which is configured in a manner to completely or partially fill the molds with the molten metal or alloy sequentially one after another. Filling of the molds in this manner provides uniform mold filling, reduces foreign matter in molds filled after the first-filled mold, and improves quality of the cast articles.

摘要翻译： 将熔融金属或合金铸造成多个模具的方法和装置，所述多个模具通过熔模流动连通的模具浇口通道连接到熔体供给通道，所述熔体供给通道被构造成使得熔融金属或合金依次完全或部分地填充模具 相继。 以这种方式填充模具提供均匀的模具填充，减少在第一填充模具之后填充的模具中的异物，并且提高铸件的质量。

公开(公告)号：US20240316626A1

公开(公告)日：2024-09-26

申请号：US18610230

申请日：2024-03-19

申请人： Rajeev Naik

发明人： Rajeev Naik

IPC分类号： B22D45/00 ,  B22D27/04

CPC分类号： B22D45/00 ,  B22D27/045

摘要： A casting furnace for manufacture of metal and/or ceramic components at high production rate is disclosed. The casting furnace comprises a melting chamber, a dual zone mold heating chamber and a dual zone mold cooling chamber. The melting chamber provides a source of molten alloy or ceramics with adequate superheat. The dual zone mold heating chamber includes an independently controlled primary heating zone and the secondary heating zone. The primary heating zone raises the mold temperature adequately to impart high gradient solidification conditions. The secondary heating zone assists the primary heating zone to minimize overheating of the majority of the mold. The dual zone mold cooling chamber comprises a primary cooling chamber and a secondary cooling chamber. The primary cooling chamber speeds up solidification in order to prevent defect formation and refine microstructure. The secondary cooling chamber slows down the cooling of castings to reduce residual stresses build up and minimize elemental segregation through augmenting solid-state diffusion of lower melting elements.