JPS6428328A - Heat treatment of clad steel pipe - Google Patents
Heat treatment of clad steel pipeInfo
- Publication number
- JPS6428328A JPS6428328A JP62183204A JP18320487A JPS6428328A JP S6428328 A JPS6428328 A JP S6428328A JP 62183204 A JP62183204 A JP 62183204A JP 18320487 A JP18320487 A JP 18320487A JP S6428328 A JPS6428328 A JP S6428328A
- Authority
- JP
- Japan
- Prior art keywords
- steel pipe
- inside surface
- steel
- stainless steel
- heat treatment
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Landscapes
- General Induction Heating (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
PURPOSE:To improve the corrosion resistance of the inside surface layer of a clad steel pipe, the inside surface layer of which consists of an austenitic stainless steel, and the mechanical properties of the outside layer thereof by subjecting the inside surface layer to a soln. heat treatment by high-frequency induction heating of a specific frequency and heating the steel products of the outside surface to a separately different hardening temp. CONSTITUTION:The clad steel pipe 1, the inside surface layer of which consists of the austenitic stainless steel and the outside surface consists of a carbon steel, is produced by producing the steel pipe of a clad material consisting of the austenitic stainless steel and the carbon steel. While this clad steel pipe 1 is conveyed in an arrow direction by conveying rollers 5, a high-frequency coil 2 is inserted into the inside of the steel pipe 1 and only the stainless steel on the inside surface is subjected to the induction heating to 1,050-1,150 deg.C by the high frequency above 1,000Hz, by which the alloy components such as Cr and Ni are subjected to the soln. heat treatment. The outside surface layer is subjected to the low-frequency induction heating of about 60Hz by the coil 3 and is thereby heated to 920-980 deg.C. The soln. heat treatment of the inside surface stainless steel is completed by water cooling with a cooler 4. The carbon on the outside surface is subjected to the hardening treatment. The clad steel pipe having the excellent corrosion resistance on the inside surface consisting of the stainless steel and the excellent strength and toughness on the outside surface consisting of the carbon steel is thus obtd.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62183204A JPS6428328A (en) | 1987-07-22 | 1987-07-22 | Heat treatment of clad steel pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62183204A JPS6428328A (en) | 1987-07-22 | 1987-07-22 | Heat treatment of clad steel pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6428328A true JPS6428328A (en) | 1989-01-30 |
Family
ID=16131596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62183204A Pending JPS6428328A (en) | 1987-07-22 | 1987-07-22 | Heat treatment of clad steel pipe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6428328A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2322683A (en) * | 1997-02-26 | 1998-09-02 | Usui Kokusai Sangyo Kk | Fuel injection pipe |
| JP2003073736A (en) * | 2001-09-04 | 2003-03-12 | Nkk Corp | Heat treatment method and apparatus for clad steel material |
| FR2863668A1 (en) * | 2003-12-16 | 2005-06-17 | Usui Kokusai Sangyo Kk | HIGH PRESSURE FUEL SUPPLY HOSE FOR DIESEL ENGINES |
| JP2009107621A (en) * | 2004-09-15 | 2009-05-21 | Komatsu Ltd | Control device for input clutch of work vehicle |
| WO2011021396A1 (en) | 2009-08-21 | 2011-02-24 | 住友金属工業株式会社 | Method for manufacturing thick-walled seamless steel pipe |
| JP2017137547A (en) * | 2016-02-05 | 2017-08-10 | トヨタ自動車株式会社 | Nitriding method |
| JP2020020038A (en) * | 2018-07-24 | 2020-02-06 | 日本製鉄株式会社 | Heat treatment process for metal and heat treatment apparatus therefor |
| CN110883093A (en) * | 2019-10-23 | 2020-03-17 | 江阴康瑞成型技术科技有限公司 | Asynchronous cold rolling forming process for aluminum alloy stainless steel composite plate |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58210123A (en) * | 1982-05-31 | 1983-12-07 | Nippon Kokan Kk <Nkk> | Heat treatment of clad steel pipe |
| JPS5970726A (en) * | 1982-10-14 | 1984-04-21 | Kawasaki Heavy Ind Ltd | Clad steel pipe and its production |
-
1987
- 1987-07-22 JP JP62183204A patent/JPS6428328A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58210123A (en) * | 1982-05-31 | 1983-12-07 | Nippon Kokan Kk <Nkk> | Heat treatment of clad steel pipe |
| JPS5970726A (en) * | 1982-10-14 | 1984-04-21 | Kawasaki Heavy Ind Ltd | Clad steel pipe and its production |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2322683A (en) * | 1997-02-26 | 1998-09-02 | Usui Kokusai Sangyo Kk | Fuel injection pipe |
| GB2322683B (en) * | 1997-02-26 | 2001-05-16 | Usui Kokusi Sangyo Kaisha Ltd | High pressure fuel injection pipe and a method of manufacturing the same |
| JP2003073736A (en) * | 2001-09-04 | 2003-03-12 | Nkk Corp | Heat treatment method and apparatus for clad steel material |
| FR2863668A1 (en) * | 2003-12-16 | 2005-06-17 | Usui Kokusai Sangyo Kk | HIGH PRESSURE FUEL SUPPLY HOSE FOR DIESEL ENGINES |
| JP2009107621A (en) * | 2004-09-15 | 2009-05-21 | Komatsu Ltd | Control device for input clutch of work vehicle |
| WO2011021396A1 (en) | 2009-08-21 | 2011-02-24 | 住友金属工業株式会社 | Method for manufacturing thick-walled seamless steel pipe |
| US8845830B2 (en) | 2009-08-21 | 2014-09-30 | Nippon Steel & Sumitomo Metal Corporation | Method of manufacturing heavy-wall seamless steel pipe |
| JP2017137547A (en) * | 2016-02-05 | 2017-08-10 | トヨタ自動車株式会社 | Nitriding method |
| JP2020020038A (en) * | 2018-07-24 | 2020-02-06 | 日本製鉄株式会社 | Heat treatment process for metal and heat treatment apparatus therefor |
| CN110883093A (en) * | 2019-10-23 | 2020-03-17 | 江阴康瑞成型技术科技有限公司 | Asynchronous cold rolling forming process for aluminum alloy stainless steel composite plate |
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