Invention Grant
- Patent Title: Wire for I-shape oil rings and producing method of the same
- Patent Title (中): I型油环线及其制造方法
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Application No.: US12663952Application Date: 2008-06-11
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Publication No.: US09267461B2Publication Date: 2016-02-23
- Inventor: Masanori Ochiai , Makoto Sasaki , Tomoyuki Satoh
- Applicant: Masanori Ochiai , Makoto Sasaki , Tomoyuki Satoh
- Applicant Address: JP Tokyo
- Assignee: HITACHI METALS, LTD.
- Current Assignee: HITACHI METALS, LTD.
- Current Assignee Address: JP Tokyo
- Agency: Sughrue Mion, PLLC
- Priority: JP2007-154000 20070611; JP2008-089880 20080331
- International Application: PCT/JP2008/060649 WO 20080611
- International Announcement: WO2008/153041 WO 20081218
- Main IPC: F02F5/00
- IPC: F02F5/00 ; F16J13/12 ; B23K26/00 ; B23K26/14 ; B23K26/16 ; B23K101/10 ; B23K103/04
Abstract:
Provided is a wire rod for an I-type oil ring, which includes right and left rail portions and a web portion connecting the rail portions, which has an oil hole or a molten through hole formed in the web portion, and which has a circumscribing circle diameter of 10 mm or less in its transverse contour. The molten through hole has such a remolten portion formed on its exit side as encloses the exit of the molten through hole. The remolten portion exceeds such a molten portion in the transverse section along the center of the molten through hole as is formed in the molten through hole, and is formed to have 200 μm or less from the outer circumference of the molten through hole and 100 μm or less in the depth direction of the molten through hole.
Public/Granted literature
- US20100181731A1 WIRE FOR I-SHAPE OIL RINGS AND PRODUCING METHOD OF THE SAME Public/Granted day:2010-07-22
Information query
