JPS5757840A - Continuous annealing device for strip - Google Patents
Continuous annealing device for stripInfo
- Publication number
- JPS5757840A JPS5757840A JP13352880A JP13352880A JPS5757840A JP S5757840 A JPS5757840 A JP S5757840A JP 13352880 A JP13352880 A JP 13352880A JP 13352880 A JP13352880 A JP 13352880A JP S5757840 A JPS5757840 A JP S5757840A
- Authority
- JP
- Japan
- Prior art keywords
- zone
- strip
- continuous annealing
- rolls
- flaws
- 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.)
- Granted
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
- C21D9/63—Continuous furnaces for strip or wire the strip being supported by a cushion of gas
Abstract
PURPOSE:To prevent the production of flaws on the surface of a strip by holding the suspended state of the strip by the hot wind from floaters in a continuous annealing furnace for strips. CONSTITUTION:The continuous annealing furnace for strips is constituted of a preheating zone A, a heating and soaking zone B, and a cooling zone C. A strip S first enters the zone A, where it is preheated by the hot wind of a relatively low temp. of <=850 deg.C blown from flaters 3 to the top and bottom surface thereof, and the strip is held in a roughly horizontally suspended state. Next, it enters the zone B constituted of heat insulating furnace walls 4 flexing at an angle alpha of inclination from the mid-part, where it is heated and soaked to prescribed 900-1,150 deg.C annealing temps. by the heat sources provided in the walls 4. Next, it is introduced into the zone C, where while it is cooled by the cold wind blown from above and below in chambers 6, 7, it is pulled out from the zone C by support rolls 5 and hearth rolls 8. Since no hearth rolls are used for the preheating, heating and soaking parts, the production of flaws on the strip surfaces by the hearth rolls is obviated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13352880A JPS6058765B2 (en) | 1980-09-25 | 1980-09-25 | Strip continuous annealing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13352880A JPS6058765B2 (en) | 1980-09-25 | 1980-09-25 | Strip continuous annealing equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5757840A true JPS5757840A (en) | 1982-04-07 |
| JPS6058765B2 JPS6058765B2 (en) | 1985-12-21 |
Family
ID=15106893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13352880A Expired JPS6058765B2 (en) | 1980-09-25 | 1980-09-25 | Strip continuous annealing equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6058765B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6394279U (en) * | 1986-12-09 | 1988-06-17 |
-
1980
- 1980-09-25 JP JP13352880A patent/JPS6058765B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6058765B2 (en) | 1985-12-21 |
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