发明授权
- 专利标题： Iron-based sintered powder metal for wear resistant applications
- 专利标题（中）： 用于耐磨应用的铁基烧结粉末金属
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申请号： US13566432申请日： 2012-08-03
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公开(公告)号： US08801828B2公开(公告)日： 2014-08-12
- 发明人: Denis Boyd Christopherson, Jr. , Leslie John Farthing , Jeremy Raymond Koth
- 申请人： Denis Boyd Christopherson, Jr. , Leslie John Farthing , Jeremy Raymond Koth
- 申请人地址： US MI Southfield
- 专利权人： Federal-Mogul Corporation
- 当前专利权人： Federal-Mogul Corporation
- 当前专利权人地址： US MI Southfield
- 代理机构： Dickinson Wright, PLLC
- 代理商 Robert L. Stearns
- 主分类号： B22F1/00
- IPC分类号： B22F1/00 ; B22F9/00 ; C22C33/02
摘要：
A powder metal material comprises pre-alloyed iron-based powder including carbon present in an amount of 0.25 to 1.50% by weight of the pre-alloyed iron-based powder. Graphite is admixed in an amount of 0.25 to 1.50% by weight of the powder metal material. The admixed graphite includes particles finer than 200 mesh in an amount greater than 90.0% by weight of the admixed graphite. Molybdenum disulfide is admixed in an amount of 0.1 to 4.0% by weight of the powder metal material, copper is admixed in an amount of 1.0 to 5.0% by weight of the powder metal material, and the material is free of phosphorous. The powder metal material is then compacted and sintered at a temperature of 1030 to 1150° C. At least 50% of the admixed graphite of the starting powder metal material remains as free graphite after sintering.
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