JPS5743938A - Structure for turning and conveying strip in continuous annealing furnace - Google Patents
Structure for turning and conveying strip in continuous annealing furnaceInfo
- Publication number
- JPS5743938A JPS5743938A JP11924180A JP11924180A JPS5743938A JP S5743938 A JPS5743938 A JP S5743938A JP 11924180 A JP11924180 A JP 11924180A JP 11924180 A JP11924180 A JP 11924180A JP S5743938 A JPS5743938 A JP S5743938A
- Authority
- JP
- Japan
- Prior art keywords
- strip
- rolls
- small diameter
- water cooling
- roll
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
- C21D9/54—Furnaces for treating strips or wire
- C21D9/56—Continuous furnaces for strip or wire
- C21D9/562—Details
- C21D9/563—Rolls; Drums; Roll arrangements
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
Abstract
PURPOSE:To prevent generation of roll pick-up in an arc like conveying passage at a strip conveying and turning place in a continuous annealing furnace, by providing plural water cooling rolls with a small diameter having a cooling medium passage in an inside thereof in a separated manner. CONSTITUTION:In a shaft type continuous annealing furnace, a strip is introduced into a direct firing type non-oxidative heating chamber 11 by direct water cooling rolls 12 with a small diameter in place of a conventional large diameter turn roll and conveyed to a secondary heating chamber 14 from a gap between heat shielding walls 16 through a turn roll 15. Plural water cooling rolls 12 with a small diameter are arranged at a 180 deg. turn conveying part of the strip 13 almost in a semi-circular separated pattern in a side of a furnace top part and, in a side of a furnace bottom part, arranged at a 90 deg. turn conveying part in a separated manner almost over a 1/4 circle. The lowering of a temp. of the strip 13 due to each water cooling roll 12 is hardly affected because a contact length thereof is extremely short. Further, against plural small diameter rolls 12, back-up rolls can be arranged.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11924180A JPS5743938A (en) | 1980-08-29 | 1980-08-29 | Structure for turning and conveying strip in continuous annealing furnace |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11924180A JPS5743938A (en) | 1980-08-29 | 1980-08-29 | Structure for turning and conveying strip in continuous annealing furnace |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5743938A true JPS5743938A (en) | 1982-03-12 |
Family
ID=14756453
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11924180A Pending JPS5743938A (en) | 1980-08-29 | 1980-08-29 | Structure for turning and conveying strip in continuous annealing furnace |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5743938A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011047018A (en) * | 2009-08-28 | 2011-03-10 | Jfe Steel Corp | Continuous heat treatment furnace for steel strip and method for operating the same |
-
1980
- 1980-08-29 JP JP11924180A patent/JPS5743938A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011047018A (en) * | 2009-08-28 | 2011-03-10 | Jfe Steel Corp | Continuous heat treatment furnace for steel strip and method for operating the same |
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