发明授权
- 专利标题： Orifice plate and manufacturing method of the orifice plate
- 专利标题（中）： 孔板的孔板及其制造方法
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申请号： US13320397申请日： 2010-05-14
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公开(公告)号： US09366211B2公开(公告)日： 2016-06-14
- 发明人: Shiro Torizuka , Eijiro Muramatsu , Takafumi Komatsu , Hitoshi Kobayashi , Shin-ichi Nagayama , Mitsuyuki Tanaka
- 申请人： Shiro Torizuka , Eijiro Muramatsu , Takafumi Komatsu , Hitoshi Kobayashi , Shin-ichi Nagayama , Mitsuyuki Tanaka
- 申请人地址： JP Tsukuba-shi JP Suwa-shi JP Tokyo
- 专利权人： NATIONAL INSTITUTE FOR MATERIALS SCIENCE,KOMATSU SEIKI KOSAKUSHO CO., LTD.,TOKUSHU KINZOKU EXCEL CO., LTD.
- 当前专利权人： NATIONAL INSTITUTE FOR MATERIALS SCIENCE,KOMATSU SEIKI KOSAKUSHO CO., LTD.,TOKUSHU KINZOKU EXCEL CO., LTD.
- 当前专利权人地址： JP Tsukuba-shi JP Suwa-shi JP Tokyo
- 代理机构： Westerman, Hattori, Daniels & Adrian, LLP
- 优先权： JP2009-117888 20090514
- 国际申请： PCT/JP2010/058235 WO 20100514
- 国际公布： WO2010/131755 WO 20101118
- 主分类号： F02M61/18
- IPC分类号： F02M61/18 ; B21D28/16 ; B21D35/00 ; C21D6/00 ; C21D7/02 ; F02B23/10
摘要：
An orifice plate for liquid injection made of plate-shaped stainless steel, wherein an orifice is formed by shearing, is characterized in that the average crystal grain size of the stainless steel is 3 μm or less. The thickness of the plate-shaped stainless steel is 1.2 mm or less, and preferably 0.1 mm or less. The aspect ratio of the orifices is 0.8 or lower. The orifices are formed orthogonal to the plate surface, or slanted by 50° or at smaller angles. The plate-shaped stainless steel has a composition containing C, Mn, and Si.