Patent US3841126A successfully refreshed from Google Patents.
US3841126A
Expired / Lapsed
US
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Method of lubricating a work, especially a wire in a warm forging process
Assignee: Kobe Steel Ltd
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Filing: 1973-03-22
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Granted: 1974-10-15
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Expires: 1993-03-22
Abstract
Abstract A method of lubricating a workpiece, especially a wire of steel, titanium, or the like, in a warm forging process such as warm heading performed at a temperature between 450*-800*C, characterized by using an oily lubricant, such as oil, fat, mineral oil and polyethylene glycol mixed with about 5-20 times as much water and spraying the mixture of said lubricant and water by using airless spray at nozzle pressure from 50 to 150 kg/cm2 into engaging surfaces of the workpiece and a tool, whereby due to a cooling effect by the water, the oily lubricant operates satisfactorily even at a high temperature range of 450*800*C.
Inventors
- 👤 T Minami
- 👤 A Shiina
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:41
CPC Classifications
C; C10; C10M; C10M3/00; B; B21; B21C; B21C9/00; B21J; B21J3/00; C10M2201/00; C10M2201/02; C10M2201/06; C10M2201/063; C10M2201/085; C10M2203/00; C10M2203/10; C10M2203/102; C10M2203/104; C10M2203/106; C10M2203/108; C10M2207/00; C10M2207/40; C10M2207/404; C10M2209/00; C10M2209/02; C10M2209/08; C10M2209/084; C10M2209/10; C10M2209/103; C10M2209/104; C10M2219/00; C10M2219/02; C10M2219/024; C10N; C10N2010/00; C10N2010/02; C10N2040/00; C10N2040/20; C10N2040/24; C10N2040/241; C10N2040/242; C10N2040/243; C10N2040/244; C10N2040/245; C10N2040/246; C10N2040/247; C10N2050/00; C10N2050/01; C10N2050/04
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
77 words
A method of lubricating a workpiece, such as a wire in a warm foRging process at a temperature between 450*-800*C, comprising the steps of: preparing a mixture of oily lubricant and water, wherein said oily lubricant is mixed with 5-20 times as much water; and spraying said mixture onto an engaging surface of said workpiece, wherein said mixture is sprayed by being compressed by an airless pump at a spraying pressure within the range of 50-150 kg/cm2.
Claim 2
Independent Claim
77 words
A method of lubricating a workpiece, such as a wire in a warm foRging process at a temperature between 450*-800*C, comprising the steps of: preparing a mixture of oily lubricant and water, wherein said oily lubricant is mixed with 5-20 times as much water; and spraying said mixture onto an engaging surface of said workpiece, wherein said mixture is sprayed by being compressed by an airless pump at a spraying pressure within the range of 50-150 kg/cm2.
Claim 3
Dependent Claim
23 words
A method according to claim 1, wherein said oily lubricant includes at least one selected from oils, fats, mineral oils and polyethylene glycol.
Claim 4
Dependent Claim
31 words
A method according to claim 1, wherein said wire is coated with a lubricating film of polyethylene glycol in a heating up process for warm forging performed by electric resistance heating.
Claim 5
Dependent Claim
30 words
A method according to claim 3, wherein said lubricating film of polyethylene glycol is coated on said wire at the same time said wire is expanded through a die means.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-10-14 | 1978-04-15 | 1978-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-14 | 1982-04-15 | 1982-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-14 | 1986-04-15 | 1986-10-15 | $7700.00 | Window Closed / Lapsed |