发明申请
- 专利标题: FERROMAGNETIC POWDER COMPOSITION AND METHOD FOR ITS PRODUCTION
- 专利标题(中): 氟化粉末组合物及其生产方法
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申请号: US12922360申请日: 2009-03-18
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公开(公告)号: US20110006246A1公开(公告)日: 2011-01-13
- 发明人: Björn Skårman , Zhou Ye , Hilmar Vidarsson
- 申请人: Björn Skårman , Zhou Ye , Hilmar Vidarsson
- 申请人地址: SE Hoganas
- 专利权人: HOGANAS AB (PUBL)
- 当前专利权人: HOGANAS AB (PUBL)
- 当前专利权人地址: SE Hoganas
- 优先权: SE0800659-5 20080320
- 国际申请: PCT/SE09/50278 WO 20090318
- 主分类号: H01F1/147
- IPC分类号: H01F1/147 ; B29C43/00
摘要:
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.