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US-2018320450-A1 · Nov 8, 2018 · US
Carbide pellets for wear resistant applications
US9499888B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9499888-B2 |
| Application number | US-201414458918-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 13, 2014 |
| Priority date | Jun 30, 2010 |
| Publication date | Nov 22, 2016 |
| Grant date | Nov 22, 2016 |
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- Title
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Abstract
Official abstract text for this publication.
Carbide pellets including relatively small amounts of metallic binder are produced by steps of pressing, comminuting, shaping and sintering. The carbide pellets may be used as wear resistant hard facing materials that are applied to various types of tools. The carbide pellets provide improved mechanical properties such as hardness and abrasiveness while maintaining required levels of toughness and strength.
First claim
Opening claim text (preview).
The invention claimed is: 1. Substantially spherical sintered carbide pellets comprising carbide and from 0.5 to 2.5 weight percent of a metallic binder, wherein the carbide has an average particle size from about 2 μm to about 4 μm. 2. The substantially spherical sintered carbide pellets of claim 1 , wherein the metallic binder is present in an amount of about 2 weight percent. 3. The substantially spherical sintered carbide pellets of claim 1 , wherein the metallic binder comprises cobalt, iron, nickel, steel or a combination thereof. 4. The substantially spherical sintered carbide pellets of claim 1 , wherein the metallic binder comprises cobalt. 5. The substantially spherical sintered carbide pellets of claim 1 , wherein the carbide comprises tungsten carbide, di-tungsten carbide, titanium carbide, tantalum carbide, chromium carbide, vanadium carbide or a combination thereof. 6. The substantially spherical sintered carbide pellets of claim 1 , wherein the carbide comprises tungsten carbide. 7. The substantially spherical sintered carbide pellets of claim 1 , wherein the substantially spherical sintered pellets have an average size of from about 381 to about 1,885 microns. 8. The substantially spherical sintered carbide pellets of claim 1 , wherein the substantially spherical sintered carbide pellets are formed from shaped green pellets. 9. Substantially spherical sintered cemented carbide pellets comprising carbide and from 0.5 to 2.5 weight percent of a metallic binder. 10. The substantially spherical sintered cemented carbide pellets of claim 9 , wherein the metallic binder comprises cobalt, iron, nickel, steel or a combination thereof. 11. The substantially spherical sintered cemented carbide pellets of claim 9 , wherein the metallic binder comprises cobalt. 12. The substantially spherical sintered cemented carbide pellets of claim 9 , wherein the carbide comprises tungsten carbide, di-tungsten carbide, titanium carbide, tantalum carbide, chromium carbide, vanadium carbide or a combination thereof. 13. The substantially spherical sintered cemented carbide pellets of claim 9 , wherein the carbide comprises tungsten carbide. 14. The substantially spherical sintered cemented carbide pellets of claim 9 , wherein the substantially spherical sintered pellets have an average size of from about 381 to about 1,885 microns. 15. The substantially spherical sintered cemented carbide pellets of claim 9 , wherein the substantially spherical sintered cemented carbide pellets are formed from shaped green pellets. 16. The substantially spherical sintered carbide pellets of claim 9 , wherein the carbide has an average particle size of 0.5 μm to 10 μm.
Assignees
Inventors
Classifications
comprising a particular metallic binder · CPC title
based on tungsten carbide · CPC title
Supplementary information concerning processes or compositions relating to powder metallurgy · CPC title
Processes characterised by the sequence of their steps · CPC title
- C22C29/10Primary
based on titanium carbide · CPC title
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Frequently asked questions
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- What does patent US9499888B2 cover?
- Carbide pellets including relatively small amounts of metallic binder are produced by steps of pressing, comminuting, shaping and sintering. The carbide pellets may be used as wear resistant hard facing materials that are applied to various types of tools. The carbide pellets provide improved mechanical properties such as hardness and abrasiveness while maintaining required levels of toughness …
- Who is the assignee on this patent?
- Kennametal Inc
- What technology area does this patent fall under?
- Primary CPC classification C22C29/10. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Nov 22 2016 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).