Patent US4563329A successfully refreshed from Google Patents.
US4563329A
Expired / Lapsed
US
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Powder alloy sheet for forming a wear resistant layer on a workpiece
Assignee: Mazda Motor Corp
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Filing: 1983-10-31
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Granted: 1986-01-07
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Expires: 2003-10-31
Abstract
Abstract A powder alloy sheet including powders of wear-resistant eutectic alloy in a quantity of 85 to 97% in volume, and acrylic resin binder in a quantity of 15 to 3% in volume. There is also disclosed a method for forming a wear-resistant layer on a workpiece comprising steps of providing a powder alloy sheet comprised on 85 to 97 vol. % of powders of wear-resistant eutectic alloy and 15 to 3 vol. % of acrylic resin binder, bonding the sheet on a workpiece surface, heating the workpiece under a non-oxidizing atmosphere to a semi-liquid phase sintering temperature to sinter the alloy powder.
Inventors
- 👤 Tuyoshi Morishita
- 👤 Sigemi Ohsaki
- 👤 Yashuhumi Kawado
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:56
CPC Classifications
B; B22; B22F; B22F7/00; B22F7/06; B22F7/062; B22F7/02; B22F7/04; F; F01; F01L; F01L1/00; F01L1/12; F01L1/14; F01L1/16; B22F2998/00; F01L2301/00; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T428/00; Y10T428/31504; Y10T428/31678; Y10T428/31692
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
76 words
A powder alloy sheet including powders of wear-resistant Fe--M--C type ternary eutectic alloy and acrylic resin binder, wherein M is at least one of Mo, P and B, said ternary alloy being contained in a quantity of 85 to 97% by volume and having 10 to 50 vol. % of liquid phase at a temperature of about 1000° to 1150° C., said acrylic resin binder being contained in a quantity of 15 to 3% by volume.
Claim 2
Dependent Claim
76 words
A powder alloy sheet including powders of wear-resistant Fe--M--C type ternary eutectic alloy and acrylic resin binder, wherein M is at least one of Mo, P and B, said ternary alloy being contained in a quantity of 85 to 97% by volume and having 10 to 50 vol. % of liquid phase at a temperature of about 1000° to 1150° C., said acrylic resin binder being contained in a quantity of 15 to 3% by volume.
Claim 3
Dependent Claim
24 words
A powder alloy sheet in accordance with claim 1 which further has a coating of acrylic resin formed at one side of the sheet.
Claim 4
Dependent Claim
35 words
A powder alloy sheet in accordance with claim 1 in which the eutectic alloy is of a Fe--P--C type containing 0.5 to 2.5 weight % of P and 1.5 to 4.0 weight % of C.
Claim 5
Dependent Claim
26 words
A powder alloy sheet in accordance with claim 1 in which said entectic alloy is of Fe--Mo--C type containing 2.5 to 10.5 weight % of Mo.
Claim 6
Dependent Claim
26 words
A powder alloy sheet in accordance with claim 1 in which said eutectic alloy is of Fe--B--C type containing 0.5 to 3.0 weight % of B.
Claim 7
Dependent Claim
28 words
A powder allow sheet in accordance with claim 1 which further contains at least one of Cr, V and W in a quantity less than 10 weight %.
Claim 8
Dependent Claim
21 words
A powder alloy sheet in accordance with claim 1 which further contains Si in a quantity less than 5.0 weight %.
Claim 9
Dependent Claim
21 words
A powder alloy sheet in accordance with claim 1 which further contains Ni in a quantity less than 5.0 weight %.
Claim 10
Dependent Claim
21 words
A powder alloy sheet in accordance with claim 1 which further contains Mn in a quantity less than 5.0 weight %.
Claim 11
Dependent Claim
19 words
A powder alloy sheet in accordance with claim 1 wherein said powders of alloy are finer than 150 mesh.
Claim 12
Independent Claim
130 words
A method for forming a wear-resistant layer on a workpiece comprising steps of providing a powder alloy sheet comprised of 85 to 97 vol. % of powders of wear-resistant Fe--M--C type ternary eutectic alloy wherein M is at least one of Mo, P and B and 15 to 3 vol. % of acrylic resin binder, said eutectic alloy having 10 to 50 vol. % of liquid phase at a temperature of about 1000° to 1150° C., coating acrylic resin on one side of the sheet, bonding the sheet on a workpiece surface, heating the workpiece under a non-oxidizing atmosphere at a heat-up rate wherein a sufficient liquid phase is produced but an excessive amount of gas is not produced to a semi-liquid phase sintering temperature to sinter the alloy powders.
Claim 13
Independent Claim
130 words
A method for forming a wear-resistant layer on a workpiece comprising steps of providing a powder alloy sheet comprised of 85 to 97 vol. % of powders of wear-resistant Fe--M--C type ternary eutectic alloy wherein M is at least one of Mo, P and B and 15 to 3 vol. % of acrylic resin binder, said eutectic alloy having 10 to 50 vol. % of liquid phase at a temperature of about 1000° to 1150° C., coating acrylic resin on one side of the sheet, bonding the sheet on a workpiece surface, heating the workpiece under a non-oxidizing atmosphere at a heat-up rate wherein a sufficient liquid phase is produced but an excessive amount of gas is not produced to a semi-liquid phase sintering temperature to sinter the alloy powders.
Claim 14
Dependent Claim
21 words
A method in accordance with claim 11 in which the non-oxidizing atmosphere is one of hydrogen atmosphere, nitrogen atmosphere and vacuum.
Claim 15
Dependent Claim
22 words
A method in accordance with claim 11 in which said heating is conducted with a heat-up rate of 10° to 40° C./min.
Claim 16
Dependent Claim
25 words
A method in accordance with claim 11 in which said heating is performed so that the alloy has 10 to 50 vol.% of liquid phase.
References Cited (Backward Citations)
JPS5183834A
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JPS5521802A
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US4386959A
Cited
SU900988A1
Cited
JPS5873706A
Cited
JPS58153706A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-01-06 | 1989-07-08 | 1990-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-01-06 | 1993-07-08 | 1994-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-01-06 | 1997-07-08 | 1998-01-07 | $7700.00 | Window Closed / Lapsed |