JPS558441A - One-side oxiding method of steel hoop in one-side plating - Google Patents
One-side oxiding method of steel hoop in one-side platingInfo
- Publication number
- JPS558441A JPS558441A JP8048278A JP8048278A JPS558441A JP S558441 A JPS558441 A JP S558441A JP 8048278 A JP8048278 A JP 8048278A JP 8048278 A JP8048278 A JP 8048278A JP S558441 A JPS558441 A JP S558441A
- Authority
- JP
- Japan
- Prior art keywords
- steel hoop
- gas
- oxidizing
- flow rate
- change
- 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
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
- C23C8/08—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases only one element being applied
- C23C8/10—Oxidising
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Coating With Molten Metal (AREA)
Abstract
PURPOSE:To make operation simple and enable optimum film to be formed by changing the oxygen concentration in oxidative gas of a fixed flow rate in correspondence to the change of the travelling speed of the steel hoop thereby oxidizing one side of the steel hoop. CONSTITUTION:The oxidizing gas having been controlled to a correct concentration is blown from a nozzle 5 to a steel hoop 1 which has been activated of its surfaces by being heated in a reducing atmosphere and has been cooled to the temperature suited to plating, in a turn-down roll 3 part. Thereby, an oxide film is formed on the surfaces of the steel hoop 1. the excess gas is exhausted to the outside through suction and exhaust ports 6, 6'. In order to prevent the leakage of the oxidizing gas to the reducing atmosphere 2 or snout part 8, inert gas is blown out from the nozzles 7, 7' to seal. In this case, change of the oxidizing conditions and the flow rate of the oxidizing gas are made constant in correspondence to the change in the travelling speed of the steel hoop 1 and the O2 concentration is controlled in performing the oxidation. As a result, the oxidation is performed at the constant seal gas flow rate and suction and exhaust conditions and therefore there are no in-furnace pollutions of the oxidizing gas at all and always good one-side plated steel plates are obtainable.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8048278A JPS558441A (en) | 1978-07-04 | 1978-07-04 | One-side oxiding method of steel hoop in one-side plating |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8048278A JPS558441A (en) | 1978-07-04 | 1978-07-04 | One-side oxiding method of steel hoop in one-side plating |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS558441A true JPS558441A (en) | 1980-01-22 |
Family
ID=13719487
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8048278A Pending JPS558441A (en) | 1978-07-04 | 1978-07-04 | One-side oxiding method of steel hoop in one-side plating |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS558441A (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5211136A (en) * | 1975-07-18 | 1977-01-27 | Sumitomo Metal Ind | Anticorrosion process for steel |
JPS5241133A (en) * | 1975-09-30 | 1977-03-30 | Nippon Steel Corp | Method of oxidizing only one surface of steel band and apparatus therefor |
JPS5633467A (en) * | 1979-08-22 | 1981-04-03 | Dowa Mining Co Ltd | Copper coating method |
-
1978
- 1978-07-04 JP JP8048278A patent/JPS558441A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5211136A (en) * | 1975-07-18 | 1977-01-27 | Sumitomo Metal Ind | Anticorrosion process for steel |
JPS5241133A (en) * | 1975-09-30 | 1977-03-30 | Nippon Steel Corp | Method of oxidizing only one surface of steel band and apparatus therefor |
JPS5633467A (en) * | 1979-08-22 | 1981-04-03 | Dowa Mining Co Ltd | Copper coating method |
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