公开(公告)号：JP2012026023A

公开(公告)日：2012-02-09

申请号：JP2010168781

申请日：2010-07-28

申请人： Hitachi Powdered Metals Co Ltd ,  日立粉末冶金株式会社

发明人： YAMAGUCHI SHIZUKA ,  OKAMOTO KAZUTAKA ,  BABA NOBORU ,  YAMANISHI YUJI ,  TSUTSUI TADAYUKI

IPC分类号： B22F3/24 ,  C22C33/02

CPC分类号： C22C38/12 ,  B22F7/06 ,  C21D1/06 ,  C21D1/74 ,  C21D2251/02 ,  C22C33/02 ,  C22C38/04 ,  C22C38/08 ,  C23C14/024 ,  C23C14/025 ,  C23C14/0605 ,  C23C16/0218 ,  C23C16/0272 ,  C23C16/0281 ,  C23C16/26 ,  Y10T428/24999

摘要： PROBLEM TO BE SOLVED: To provide an iron-based sintered material in which a contact pressure fatigue strength is improved.SOLUTION: The iron-based sintered material is used in such an environment that a lubricant is sufficiently fed. In the iron-based sintered material, a hard carbon coating 1 is provided on a surface of a base material 4 constructed by an iron-based sintered alloy having a pore 5 via a diffused surface hardened layer 3 and an interlayer 2, and a part of the pore 5 is not covered with the diffused surface hardened layer 3, the interlayer 2 and the hard carbon coating 1, but is formed in a state of being open to the surface of the diffused surface hardened layer 3.

摘要翻译： 要解决的问题：提供其中接触压力疲劳强度提高的铁基烧结材料。

解决方案：铁基烧结材料用于充分供给润滑剂的环境中。 在铁基烧结体中，在通过扩散表面硬化层3和中间层2的具有孔5的铁基烧结合金构成的基材4的表面上设置硬质碳涂层1， 的孔5未被扩散表面硬化层3，中间层2和硬碳涂层1覆盖，而是以扩散表面硬化层3的表面开放的状态形成。版权所有： （C）2012，JPO＆INPIT