US4398406A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for producing cold rolled titanium strips
Assignee: KOBE SEIKO SHO 3-18 WAKINOHAMA-CHO 1-CHOME CHUO-KU KOBE-SHI JAPAN KK
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Filing: 1981-05-18
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Granted: 1983-08-16
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Expires: 2001-05-18
Abstract
Abstract A method for producing cold rolled titanium strips having good surface quality. The cold rolling of a titanium strip is carried out under the conditions represented by the following formula: X≦(48673/Y.sup.1.3283) where X is an average grain size (μm) of the pre-cold rolled titanium strip and Y is a diameter (mm) of the roll for the cold rolling.
Inventors
- 👤 Masahito Fukuda
- 👤 Akiyoshi Tanabe
- 👤 Yasuo Moriguchi
- 👤 Nobuyuki Nagai
- 👤 Kunio Tsuji
- 👤 Yoshihiro Yamaguchi
- 👤 Tomiharu Matsushita
- 👤 Atsuo Mizuta
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:43
CPC Classifications
B; B21; B21B; B21B3/00; Y; Y10; Y10S; Y10S72/00; Y10S72/70
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
61 words
A method for producing a cold-rolled titanium strip, comprising: predetermining the average grain size in micrometers of a pre-cold-rolled titanium strip, and cold-rolling said pre-cold-rolled titanium strip under the condition such that X≦48673/.sub.Y 1.3283 wherein X is the average grain size in micrometers of the pre-cold-rolled titanium strip, and Y is the diameter in millimeters of the rolls used for cold-rolling.
Claim 2
Independent Claim
61 words
A method for producing a cold-rolled titanium strip, comprising: predetermining the average grain size in micrometers of a pre-cold-rolled titanium strip, and cold-rolling said pre-cold-rolled titanium strip under the condition such that X≦48673/.sub.Y 1.3283 wherein X is the average grain size in micrometers of the pre-cold-rolled titanium strip, and Y is the diameter in millimeters of the rolls used for cold-rolling.
Claim 3
Dependent Claim
20 words
The method according to claim 1, wherein said cold rolling is carried out under the condition such that X≦10303/.sub.Y 1.3283.
Claim 4
Dependent Claim
20 words
The method according to claim 1, wherein said cold rolling is carried out under the condition such that X≦365/.sub.Y 1.3283.
Claim 5
Dependent Claim
28 words
The method according to claim 1, 2 or 3, wherein an oil having a saponification value of at least 130 is used as the lubricant for the cold-rolling.
Claim 6
Dependent Claim
28 words
The method according to claim 1, 2 or 3, wherein an oil having a saponification value of at least 170 is used as the lubricant for the cold-rolling.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-08-15 | 1987-02-14 | 1987-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-08-15 | 1991-02-14 | 1991-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-08-15 | 1995-02-14 | 1995-08-16 | $7700.00 | Window Closed / Lapsed |