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Composite materials

A technology of composite materials and alloys, applied in the direction of abrasives, polishing compositions containing abrasives, and other chemical processes, can solve the problems of poor rigidity of the matrix

Inactive Publication Date: 2008-06-11
ATI PROPERTIES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Many conventional composite materials have strong, rigid fibers in a matrix that is less strong and less rigid

Method used

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  • Composite materials
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0072] Example 1 - Hardfacing Decals for Rock Breaker Faces

[0073] Hard Particle Component: Coarse-grained tungsten carbide, titanium carbide, zirconium carbide, zirconia, tantalum carbide, niobium carbide, hafnium carbide comprising from about 20% to about 97% by weight of the composite and having an average particle size of from about 5 microns to about 10,000 microns , chromium carbide, vanadium carbide and / or crushed cemented carbide.

[0074] Carrier Component: Fugitive polymer comprising from about 1% to about 20% by weight and providing complete burnout during initial heating of the applique.

[0075] Additive: From about 0% to about 50% by weight copper-based braze alloy.

[0076] The density of the applique is preferably relatively high, at 2 g / cm due to the high loading of the hard particle component 3 to about 10g / cm 3 range and generally close to or exceed the calculated solid limit, as shown by the dashed line 7 in Fig. 1. The composite is in the form of a s...

Embodiment 2

[0077] The preparation of the wearing surface of embodiment 2-metalworking tool

[0078] Hard Particle Component: Coarse grained tungsten carbide comprising from about 20% to about 97% by weight of the composite material and having an average particle size of from about 5 microns to about 10,000 microns.

[0079] Carrier Component: A fugitive elastomer comprising from about 1% to about 20% by weight and providing complete burnout during initial heating of the wear surface.

[0080] Additives: Transition metal based brazing alloys such as cobalt-, Ni-Co or Ni-Cu based brazing alloys or titanium alloys are typical, but more expensive Ag based brazing alloys may also be used. The transition metal-based braze alloy comprises from about 0% to about 50% by weight of the composite.

[0081] The density of the applique is preferably relatively high, at about 2 g / cm due to the high loading of the hard particle component 3 to about 10g / cm 3 range and generally close to or exceed the ...

Embodiment 3

[0082] Example 3 - Extrudable Grinding Putty

[0083] Hard Particle Component: Medium particle tungsten carbide comprising from about 0% to about 98% by weight and having an average particle size of from about 2 microns to about 5 microns.

[0084] Carrier Component: A polymer comprising from about 2% to about 50% by weight and providing a controlled and relatively constant viscosity.

[0085] Additives: 0% to about 30% by weight of stabilizers such as UV stabilizers and colorants for identification. Must be compatible with the specified carrier and generally readily available within the plastics industry.

[0086] Due to the presence of hard particles, the density of the putty is preferably medium, at about 2 g / cm 3 to approximately 8g / cm 3 within range. The putty is preferably extrudable at low pressures, ie, less than 689.5 kPa (100 psi), and is resistant to flow separation. The putty is also preferably non-corrosive, has low toxicity, and is easily recyclable.

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Abstract

Certain non-limiting embodiments of the present disclosure comprise a family of composite materials targeting specific applications through a materials design approach involving; 1 ) a hard particulate; 2) a carrier or binder phase; and 3) one or more additives for property enhancement and / or hardness adjustment. According to certain embodiments, the composite material may be one of flexible conformal sheet; a rigid machinable molded preform; and an extrudable putty. Methods of manufacture of the composite materials are also disclosed.

Description

technical field [0001] Some non-limiting embodiments herein include a class of composite materials targeted for specific applications through materials design methods, including the following materials: 1) hard particles; 2) a carrier or binder phase; and 3) one or more Additives for property enhancement and / or hardness adjustment. According to some non-limiting embodiments, the composite material may be one of a flexible conformal sheet, a rigid processable molded preform, and an extrudable putty. A method of making the composite is also disclosed. Background technique [0002] Currently in use there are various materials which have some manifestation of hardness and density as the main properties of interest. Virtually all of these known products, including items such as hardfacing electrodes, vitrified bonded grinding tools, and sintered tungsten alloys, are well-established materials technologies. It is not uncommon to find emerging or developing applications not well...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24D3/00C09G1/02B24D3/20C09K3/14B24D3/34
CPCB24D3/00C09K3/1481C09G1/02C08L21/00B24D3/34B24D3/20C09K3/14
Inventor 史蒂文·G·考德威尔詹姆斯·J·奥克斯
Owner ATI PROPERTIES
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