JPS5789461A - Ferrous sintered alloy for use as valve seat - Google Patents
Ferrous sintered alloy for use as valve seatInfo
- Publication number
- JPS5789461A JPS5789461A JP16539580A JP16539580A JPS5789461A JP S5789461 A JPS5789461 A JP S5789461A JP 16539580 A JP16539580 A JP 16539580A JP 16539580 A JP16539580 A JP 16539580A JP S5789461 A JPS5789461 A JP S5789461A
- Authority
- JP
- Japan
- Prior art keywords
- valve seat
- alloy
- ferrous
- sintered alloy
- ferrous sintered
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Powder Metallurgy (AREA)
Abstract
PURPOSE: To improve the compression strength and abrasion resistance of a valve seat, by providing the valve seat with the structure that hard alloy particles difficultly diffusible into the peripheral matrix during sintering are dispersed in the ferrous matrix.
CONSTITUTION: The ferrous sintered alloy for use as a valve seat is prepared by adding hard alloy powder to raw alloy powder material, and mixing, compression-molding and sintering the composition. The alloy has the structure that hard particles, comprising, by wt%, 20W60 of one or more of Mo, W, Cr and V, 0.5W3 of C, 0.5W10 of Si, 5W20 of Co and the balance being substantially Fe and having micro Vickers hardness of 900W1,300 are dispersed in the ferrous matrix at a rate of 5W20%. The alloy has chemical composition comprising 0.66W1.8% C, 0.025W2% Si, 0.25W4% Co, 0.16W2.85% Cr, 0.16W1.9% Mo, 1W 12%, in total, of one or more of Mo, W, Cr and V, and the balance being substantially Fe.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16539580A JPS5789461A (en) | 1980-11-26 | 1980-11-26 | Ferrous sintered alloy for use as valve seat |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16539580A JPS5789461A (en) | 1980-11-26 | 1980-11-26 | Ferrous sintered alloy for use as valve seat |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5789461A true JPS5789461A (en) | 1982-06-03 |
Family
ID=15811580
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16539580A Pending JPS5789461A (en) | 1980-11-26 | 1980-11-26 | Ferrous sintered alloy for use as valve seat |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5789461A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6358298B1 (en) | 1999-07-30 | 2002-03-19 | Quebec Metal Powders Limited | Iron-graphite composite powders and sintered articles produced therefrom |
KR20180101564A (en) | 2016-01-26 | 2018-09-12 | 가부시키가이샤 아데카 | Thermal acid generator and resist composition using the same |
-
1980
- 1980-11-26 JP JP16539580A patent/JPS5789461A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6358298B1 (en) | 1999-07-30 | 2002-03-19 | Quebec Metal Powders Limited | Iron-graphite composite powders and sintered articles produced therefrom |
KR20180101564A (en) | 2016-01-26 | 2018-09-12 | 가부시키가이샤 아데카 | Thermal acid generator and resist composition using the same |
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