公开(公告)号：US06484790B1

公开(公告)日：2002-11-26

申请号：US09386519

申请日：1999-08-31

申请人： Martin R. Myers ,  Michael J. Warwick ,  Yongching Chen ,  Ramesh Subramanian ,  Srinath Viswanathan ,  Karren More ,  Quingyou Han

发明人： Martin R. Myers ,  Michael J. Warwick ,  Yongching Chen ,  Ramesh Subramanian ,  Srinath Viswanathan ,  Karren More ,  Quingyou Han

IPC分类号： B22D1900

CPC分类号： B22D19/08 ,  C23C6/00

摘要： A method for forming light-weight composite metal castings incorporating metallurgically bonded inserts for a variety of applications. Castings formed by the invention have particular utility as components of an internal combustion engine. A casting method includes the step of coating the insert with a first layer under conditions including sufficient temperature to cause a portion of the layer to be sacrificed by dissolving into the cast metal material while leaving at least a portion of the first layer as a diffusion barrier between the insert and the cast material. The molten casting material is treated and handled to keep the hydrogen content below 0.15 and preferably below 0.10 parts per million. The casting step takes place under a protective gas environment of dry air, argon or nitrogen with a moisture content of less than 3 parts per million.

摘要翻译： 一种形成轻金属复合金属铸件的方法，其结合了用于各种应用的冶金结合的刀片。 由本发明形成的铸件具有作为内燃机的部件的特殊用途。 铸造方法包括在包括足够的温度的条件下用第一层涂覆插入物的步骤，以使该层的一部分通过溶解到铸造金属材料中而被牺牲，同时留下第一层的至少一部分作为扩散阻挡层 在插入件和铸造材料之间。 处理和处理熔融铸造材料以保持氢含量低于0.15，优选低于0.10ppm。 铸造步骤在干燥空气，氩气或氮气的保护气体环境下进行，水分含量低于3ppm。

公开(公告)号：US06443211B1

公开(公告)日：2002-09-03

申请号：US09386520

申请日：1999-08-31

申请人： Martin R. Myers ,  Michael J. Warwick ,  Yongching Chen ,  Ramesh Subramanian ,  Srinath Viswanathan ,  Karren More ,  Quingyou Han

发明人： Martin R. Myers ,  Michael J. Warwick ,  Yongching Chen ,  Ramesh Subramanian ,  Srinath Viswanathan ,  Karren More ,  Quingyou Han

IPC分类号： B22D1900

CPC分类号： C23C6/00 ,  B22D19/08

摘要： A method for forming light-weight composite metal castings incorporating metallurgically bonded inserts for a variety of applications. Castings formed by the invention have a particular utility as components of an internal combustion engine. A casting method includes the step of coating the insert with a first layer which is followed by coating a second layer and concluded by a casting step under conditions including sufficient temperature to cause the second coated layer to be sacrificed by dissolving into the cast metal material while leaving at least a portion of the first layer as a diffusion barrier between the insert and the cast material. The molten casting material is treated and handled to keep the hydrogen content below 0.15 and preferably below 0.10 parts per million. The casting step takes place under a protective gas environment of dry air, argon or nitrogen with a moisture content of less than 3 parts per million.

摘要翻译： 一种形成轻金属复合金属铸件的方法，其结合了用于各种应用的冶金结合的刀片。 由本发明形成的铸件具有作为内燃机部件的特殊用途。 铸造方法包括以下步骤：用第一层涂覆第一层，随后涂覆第二层，并通过流延步骤在包括足够的温度的条件下得出结论，以使第二涂层通过溶解在铸造金属材料中而被牺牲，同时 留下第一层的至少一部分作为插入件和铸造材料之间的扩散阻挡层。 处理和处理熔融铸造材料以保持氢含量低于0.15，优选低于0.10ppm。 铸造步骤在干燥空气，氩气或氮气的保护气体环境下进行，水分含量低于3ppm。