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US3754968A Expired / Lapsed US ⏱️ 0.0 years remaining

Process for producing errosion and wear resistant metal composites

Assignee: DE WIANT CORP US
•
Filing: 1971-09-10
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Granted: 1973-08-28
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Expires: 1991-09-10
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Abstract

Abstract Erosion and wear resistant metal composites are disclosed that comprise a metal alloy substrate and a coating composition bonded to said substrate; the coating composition consisting essentially of nickel, chromium, boron, silicon and titanium carbide in the following percentages by weight of the coating composition: NICKEL14% TO 80% CHROMIUM0.5% TO 10% BORON0.2% TO 5% SILICON0.3% TO 8% TITANIUM CARBIDE 6% TO 82% A process is disclosed for producing the composites wherein a first coating containing all of the foregoing metals are applied via a slurry coating technique followed by drying, heating and pressing steps and thereafter a second slurry coating step is used wherein the metal ingredients of nickel, chromium, boron and silicon are applied followed by drying and heating steps.

Inventors

  • 👤 B Reznik

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-28 20:03
CPC Classifications
B; B22; B22F; B22F7/00; B22F7/02; B22F7/04; C; C23; C23C; C23C24/00; C23C24/08; C23C24/10; C23C24/103; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12771; Y10T428/12861; Y10T428/12944

Claims Analysis

Total Claims: 3
Claim 1
Independent Claim 29 words
A process according to claim 1 wherein the weight ratio of titanium carbide to the other metal components in the first slurry is from about 4:1 to about 6:1.
Claim 2
Dependent Claim 25 words
A process according to claim 2 wherein the weight ratio of said first coating to said second coating is from about 1:5 to about 5:1.
Claim 3
Dependent Claim 17 words
A process according to claim 2 wherein said heating temperatures are from about 1,830*F to about 1,850*F.

References Cited (Backward Citations)

US2942970A Cited
GB803649A Cited
GB867455A Cited
US3625732A Cited
US3398448A Cited
US3475161A Cited
US3547681A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1976-08-27 1977-02-26 1977-08-28 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-08-27 1981-02-26 1981-08-28 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-08-27 1985-02-26 1985-08-28 $7700.00 Window Closed / Lapsed

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