公开(公告)号：WO2018063501A1

公开(公告)日：2018-04-05

申请号：PCT/US2017/045418

申请日：2017-08-04

Applicant: FEDERAL-MOGUL LLC

Inventor： BEAULIEU, Philippe ,  CHRISTOPHERSON, Denis, B.

IPC: C22C1/10 ,  C22C29/00 ,  C22C29/02 ,  C22C29/14 ,  C22C29/16 ,  F16K1/42 ,  F16K25/00 ,  C22C27/04 ,  C22C32/00 ,  F01L3/02 ,  C22C29/08

CPC classification number: C22C27/04 ,  B22F1/0003 ,  B22F3/16 ,  B22F2301/00 ,  B22F2998/10 ,  C22C1/1036 ,  C22C1/1068 ,  C22C19/07 ,  C22C29/005 ,  C22C29/02 ,  C22C29/08 ,  C22C29/14 ,  C22C29/16 ,  C22C32/0047 ,  C22C32/0052 ,  C22C32/0068 ,  C22C32/0073 ,  C22C38/18 ,  F01L3/02 ,  F16K1/42 ,  F16K25/005 ,  B22F3/02 ,  B22F3/26 ,  B22F3/10

Abstract: A sintered material for use in an internal combustion engine, such as a valve seat insert, is provided. The material includes a pressed base powder metal mixture and a Cu-rich phase infiltrated in pores of the base powder metal mixture. The base powder metal mixture includes at least one of Mo and W, and at least one additive, such as B, N, and/or C. The amount of the Mo and/or W is 50 wt. % to 85 wt. %, based on the total weight of the material. The at least one additive is present in a total amount of 0.2 to 25 wt. %, based on the total weight of the material, and the Cu-rich phase is present in an amount of 15 wt. % to 50 wt. %, based on the total weight of the material. The material also has a thermal conductivity of at least 70 W/mK.

Abstract translation: 提供了一种用于内燃机的烧结材料，例如阀座插入件。 该材料包括压制的基体粉末金属混合物和渗入基体粉末金属混合物的孔中的富Cu相。 基础粉末金属混合物包含Mo和W中的至少一种以及至少一种添加剂，例如B，N和/或C.Mo和/或W的量为50wt。 ％至85wt。 ％，基于材料的总重量。 该至少一种添加剂以总量为0.2至25wt。 基于所述材料的总重量，所述富Cu相以15wt。％的量存在。 ％至50wt。 ％，基于材料的总重量。 该材料还具有至少70W / mK的导热率。

公开(公告)号：WO2018075152A1

公开(公告)日：2018-04-26

申请号：PCT/US2017/050108

申请日：2017-09-05

Applicant: FEDERAL-MOGUL LLC

Inventor： BIOSVERT, Mathieu ,  L'ESPERANCE, Gilles ,  BEAULIEU, Philippe ,  CHRISTOPHERSON, Denis, B.

IPC: B22F9/08 ,  B22D1/00 ,  B22F9/10 ,  C21C7/00 ,  C22C1/04 ,  C22C33/02

Abstract: An improved method of manufacturing a cast part by sand casting, permanent mold casting, investment casting, lost foam casting, die casting, or centrifugal casting, or a powder metal material by water, gas, plasma, ultrasonic, or rotating disk atomization is provided. The method includes adding at least one additive to a melted metal material before or during the casting or atomization process. The at least one additive forms a protective gas atmosphere surrounding the melted metal material which is at least three times greater than the volume of melt to be treated. The protective atmosphere prevents introduction or re-introduction of contaminants, such as sulfur (S) and oxygen (O2), into the material. The cast parts or atomized particles produced include at least one of the following advantages: less internal pores, less internal oxides, median circularity of at least 0.60, median roundness of at least 0.60 and increased sphericity of microstructural phases and/or constituents.

Abstract translation: 通过砂铸，永铸模铸造，熔模铸造，消失模铸造，压铸或离心铸造制造铸件的改进方法，或者通过水，气体，等离子体， 超声波或旋转圆盘雾化。 该方法包括在铸造或雾化过程之前或期间将至少一种添加剂添加到熔融的金属材料中。 该至少一种添加剂形成围绕熔融金属材料的保护性气体气氛，其比待处理的熔体的体积大至少三倍。 保护气氛可防止污染物（如硫（S）和氧气（O2））进入或重新进入材料。 所产生的铸造零件或雾化颗粒包括以下优点中的至少一个：较少的内部孔隙，较少的内部氧化物，至少0.60的中值圆形度，至少0.60的中值圆度和微结构相和/或组分的球形度增加。 p>