US5140837A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for rolling soft metals
Assignee: PMX INDUSTRIES Inc A Corp OF IA
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Filing: 1991-05-28
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Granted: 1992-08-25
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Expires: 2011-05-28
Abstract
Abstract The method of processing soft metal slabs to strip thickness on a processing line including providing a hot reversing mill having coiler furnaces on either side thereof along the processing line; heating the slab to a hot working temperature; passing the heated slab through the hot reversing mill at least one time to reduce the thickness thereof to form an intermediate product of a coilable thickness; coiling the intermediate product in one of the coiler furnaces; passing the intermediate product back and forth through said hot reversing mill and between the coiler furnaces to reduce the intermediate product to a product having a strip thickness; processing the product of strip thickness through a quench; and surface cleaning the quenched product. No subsequent hot rolling, hot milling, cold reduction or anneal takes place prior to forming the product of strip thickness.
Inventors
- 👤 John E. Thomas
- 👤 Chung Ryu
- 👤 In H. Ryu
- 👤 Gordon K. Young
- 👤 Joong H. Shin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 18:10
CPC Classifications
C; C22; C22F; C22F1/00; C22F1/08; B; B21; B21B; B21B1/00; B21B1/22; B21B1/30; B21B1/32; B21B1/34; B21B3/00; B21B2003/005; B21B45/00
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
165 words
A method of rolling copper and copper alloys from a slab on the order of at least four inches thick to strip thickness on the order of 0.1 inches or less on a processing line comprising: (a) providing a hot reversing mill having at least one coiler furnace on either side thereof along the processing line; (b) heating a slab to a hot working temperature; (c) passing said heated slab through said hot reversing mill to form an intermediate product of coilable thickness; (d) coiling said intermediate product in one of said coiler furnaces; (e) passing said intermediate product back and forth through said hot reversing mill and between said coiler furnaces to reduce said intermediate product to a strip having a strip thickness; (f) quenching said strip; and (g) surface cleaning said quenched strip by at least one of pickling, buffing or scalping; wherein no subsequent hot rolling, hot milling, cold reduction or anneal takes place prior to forming the strip of strip thickness.
Claim 2
Independent Claim
165 words
A method of rolling copper and copper alloys from a slab on the order of at least four inches thick to strip thickness on the order of 0.1 inches or less on a processing line comprising: (a) providing a hot reversing mill having at least one coiler furnace on either side thereof along the processing line; (b) heating a slab to a hot working temperature; (c) passing said heated slab through said hot reversing mill to form an intermediate product of coilable thickness; (d) coiling said intermediate product in one of said coiler furnaces; (e) passing said intermediate product back and forth through said hot reversing mill and between said coiler furnaces to reduce said intermediate product to a strip having a strip thickness; (f) quenching said strip; and (g) surface cleaning said quenched strip by at least one of pickling, buffing or scalping; wherein no subsequent hot rolling, hot milling, cold reduction or anneal takes place prior to forming the strip of strip thickness.
Claim 3
Dependent Claim
70 words
The method of claim 1 including providing two coiler furnaces downstream of said hot reversing mill, said two coiler furnaces being in vertical alignment with one furnace above a pass line and the other furnace below the pass line, whereby while one downstream coiler furnace is receiving the intermediate product from the hot reversing mill, the other downstream furnace is paying off product of strip thickness through a quenching media.
Claim 4
Dependent Claim
17 words
The method of claim 1 including providing an in-line quench means downstream of the downstream coiler furnace.
Claim 5
Dependent Claim
21 words
The method of claim 3 including coiling the strip subsequent to quenching and paying off said strip prior to surface cleaning.
References Cited (Backward Citations)
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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) | 1995-08-25 | 1996-02-24 | 1996-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-08-25 | 2000-02-24 | 2000-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-08-25 | 2004-02-24 | 2004-08-25 | $7700.00 | Window Closed / Lapsed |