Magnetic core and coil component using same
US-2016336104-A1 · Nov 17, 2016 · US
Compact for producing a sintered alloy, a wear-resistant iron-based sintered alloy, and a method for producing the same
US10058922B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10058922-B2 |
| Application number | US-201514814694-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 31, 2015 |
| Priority date | Aug 22, 2014 |
| Publication date | Aug 28, 2018 |
| Grant date | Aug 28, 2018 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
The object of the present invention is to provide a compact for producing a sintered alloy which allows a sintered alloy obtained by sintering the compact to have improved mechanical strength and wear resistance, a wear-resistant iron-based sintered alloy, and a method for producing the same. The wear-resistant iron-based sintered alloy is produced by: forming a compact for producing a sintered alloy from a powder mixture containing a hard powder, a graphite powder, and an iron-based powder by powder compacting; and sintering the compact for producing a sintered alloy while diffusing C in the graphite powder of the compact for producing a sintered alloy in hard particles that constitute the hard powder. The hard particles contain 10% to 50% by mass of Mo, 3% to 20% by mass of Cr, and 2% to 15% by mass of Mn, with the balance made up of incidental impurities and Fe, and the hard powder and the graphite powder contained in the powder mixture account for 5% to 60% by mass and 0.5% to 2.0% by mass of the total amount of the hard powder, the graphite powder, and the iron-based powder, respectively.
First claim
Opening claim text (preview).
What is claimed is: 1. A method for producing a wear-resistant iron-based sintered alloy, which comprises the steps of: forming a compact for producing a sintered alloy from a powder mixture containing a hard powder, a graphite powder, and an iron-based powder by powder compacting; and sintering the compact for producing a sintered alloy while diffusing C in the graphite powder of the compact for producing a sintered alloy in hard particles that constitute the hard powder, wherein the hard particles contain 10% to 50% by mass of Mo, 3% to 20% by mass of Cr, and 2% to 15% by mass of Mn, with the balance made up of incidental impurities and Fe, the hard powder and the graphite powder contained in the powder mixture account for 5% to 60% by mass and 0.5% to 2.0% by mass of the total amount of the hard powder, the graphite powder, and the iron-based powder, respectively, and the hard particles contain 0% by mass of Ni, and 0% by mass Co. 2. The method for producing a wear-resistant iron-based sintered alloy according to claim 1 , wherein the hard particles further contain 1.0% by mass or less of C. 3. The method for producing a wear-resistant iron-based sintered alloy according to claim 1 , wherein the hard particles have particle sizes of 44 to 105 μm.
Assignees
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Classifications
with more than 1.7% by weight of carbon · CPC title
- C22C33/0257Primary
characterised by the range of the alloying elements · CPC title
- B22F3/12Primary
Both compacting and sintering (by forging B22F3/17) · CPC title
Using a mixture of pre-alloyed powders or a master alloy · CPC title
atomising using a fluid (using centrifugal force B22F9/10) · CPC title
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- What does patent US10058922B2 cover?
- The object of the present invention is to provide a compact for producing a sintered alloy which allows a sintered alloy obtained by sintering the compact to have improved mechanical strength and wear resistance, a wear-resistant iron-based sintered alloy, and a method for producing the same. The wear-resistant iron-based sintered alloy is produced by: forming a compact for producing a sintered…
- Who is the assignee on this patent?
- Toyota Motor Co Ltd, Fine Sinter Co Ltd, Sanyo Special Steel Co Ltd, and 2 more
- What technology area does this patent fall under?
- Primary CPC classification C22C33/0257. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Aug 28 2018 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).