Invention Grant
- Patent Title: Ferromagnetic powder composition and method for its production
- Patent Title (中): 铁磁粉组合及其制作方法
-
Application No.: US12922360Application Date: 2009-03-18
-
Publication No.: US08236420B2Publication Date: 2012-08-07
- Inventor: Björn Skårman , Zhou Ye , Hilmar Vidarsson
- Applicant: Björn Skårman , Zhou Ye , Hilmar Vidarsson
- Applicant Address: SE Höganäs
- Assignee: Höganäs AB (Publ)
- Current Assignee: Höganäs AB (Publ)
- Current Assignee Address: SE Höganäs
- Agency: Buchanan Ingersoll & Rooney PC
- Priority: SE0800659 20080320
- International Application: PCT/SE2009/050278 WO 20090318
- International Announcement: WO2009/116938 WO 20090924
- Main IPC: B32B5/16
- IPC: B32B5/16

Abstract:
A ferromagnetic powder composition is described comprising soft magnetic iron-based core particles, wherein the surface of the core particles is provided with a first inorganic insulating layer and at least one metal-organic layer, located outside the first layer, of a metal-organic compound having the following general formula: (R1[(R1)x(R2)y(MOn-1)]nR1, wherein M is a central atom selected from Si, Ti, Al, or Zr; O is oxygen; R1 is a hydrolysable group; R2 is an organic moiety and wherein at least one R2 contains at least one amino group; wherein n is the number of repeatable units being an integer between 1 and 20; wherein the x is an integer between 0 and 1; wherein y is an integer between 1 and 2; wherein a metallic or semi-metallic particulate compound having a Mohs hardness of less than 3.5 is adhered to at least one metal-organic layer; and wherein the powder composition further comprises a particulate lubricant. A process is additionally provided for producing the composition and a method for the manufacturing of soft magnetic composite components prepared from the composition, as well as the obtained component.
Public/Granted literature
- US20110006246A1 FERROMAGNETIC POWDER COMPOSITION AND METHOD FOR ITS PRODUCTION Public/Granted day:2011-01-13
Information query