Hard particles for incorporation in sintered alloy and wear-resistant iron-based sintered alloy and production method thereof
US-2015211097-A1 · Jul 30, 2015 · US
Hard particles for incorporation in sintered alloy and wear-resistant iron-based sintered alloy and production method thereof
US9988699B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9988699-B2 |
| Application number | US-201715858573-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 29, 2017 |
| Priority date | Nov 14, 2012 |
| Publication date | Jun 5, 2018 |
| Grant date | Jun 5, 2018 |
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Abstract
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Hard particles are incorporated as a starting material in a sintered alloy. The hard particles may contain 20 to 60 mass % Mo, 3 to 15 mass % Mn, and more than 0.01 to 0.5 mass % C, the balance being Fe and unavoidable impurities.
First claim
Opening claim text (preview).
The invention claimed is: 1. A hard particle for incorporation in a sintered alloy, consisting of: 20 to 60 mass % Mo; 3 to 15 mass % Mn; more than 0.01 to 0.5 mass % C; and the balance consisting of Fe and unavoidable impurities. 2. A wear-resistant iron-based sintered alloy obtained by: obtaining a mixed powder by mixing, into an iron-based powder that becomes a matrix, a powder composed of the hard particles according to claim 1 so that the hard particles are dispersed; and sintering the mixed powder, wherein the wear-resistant iron-based sintered alloy comprises 15 to 60 mass % of the hard particles with reference to the wear-resistant iron-based sintered alloy. 3. A method of producing a wear-resistant iron-based sintered alloy, comprising: obtaining a mixed powder in which an iron-based powder that becomes a matrix is mixed with 0.2 to 2 mass % graphite powder, and 15 to 60 mass % powder composed of the hard particles according to claim 1 ; compacting the mixed powder; and sintering the compacted mixed powder while diffusing a carbon of the graphite powder into the hard particles.
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Classifications
Processes characterised by the sequence of their steps · CPC title
containing manganese · CPC title
Alloys based on tungsten or molybdenum · CPC title
Both compacting and sintering (by forging B22F3/17) · CPC title
containing tungsten, tantalum, molybdenum, vanadium, or niobium · CPC title
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- What does patent US9988699B2 cover?
- Hard particles are incorporated as a starting material in a sintered alloy. The hard particles may contain 20 to 60 mass % Mo, 3 to 15 mass % Mn, and more than 0.01 to 0.5 mass % C, the balance being Fe and unavoidable impurities.
- Who is the assignee on this patent?
- Toyota Motor Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification C22C33/0278. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jun 05 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 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).