KR100490213B1 - 고주파 용접에 의한 금속세경관 제조방법 - Google Patents
고주파 용접에 의한 금속세경관 제조방법 Download PDFInfo
- Publication number
- KR100490213B1 KR100490213B1 KR10-2002-0038507A KR20020038507A KR100490213B1 KR 100490213 B1 KR100490213 B1 KR 100490213B1 KR 20020038507 A KR20020038507 A KR 20020038507A KR 100490213 B1 KR100490213 B1 KR 100490213B1
- Authority
- KR
- South Korea
- Prior art keywords
- tube
- high frequency
- welding
- diameter
- tubular tube
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K13/00—Welding by high-frequency current heating
- B23K13/01—Welding by high-frequency current heating by induction heating
- B23K13/02—Seam welding
- B23K13/025—Seam welding for tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
- B21C37/08—Making tubes with welded or soldered seams
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/04—Tubular or hollow articles
- B23K2101/06—Tubes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Arc Welding In General (AREA)
Abstract
Description
Claims (1)
- 액체질소 가스공급라인(1)의 파이프(4) 전,후측을 클램프(5)(5a)로 고정하고 가스진행방향(6)으로 유량조정변(regulator)(7)을 연결설치하며 이 유량조정변(7)과 연결되는 또다른 파이프라인(4a)에는 개폐밸브(8)에 의하여 개폐되는 제1압력게이지(9)를 연결하고 상기 파이프라인(4a) 중도부에 전기적으로 on, off콘트롤이 되는 스로틀밸브(10)를 연결하여 이 스로틀밸브(10)를 통해서 용접이 되는 세경관(2) 내부에 고속유체 가스공급라인(1)을 형성하고, 이 스로틀밸브(10)의 압력을 제2압력게이지(9a)로 연결하여 이루어지는 세경관 제조라인을 통해 금속세경관의 제조방법에 있어서,파이프형태로 성형된 강대의 접합부를 고주파 용접할 때, 상기 세경관(2) 내부에 공지의 고속유체가스로서 질소가스를 세경관내에 주입하고, 고주파 용접시 가변주파수용접방식을 적용하되 고주파 발신 회로의 L(reactance)값과 콘덴서 C와 C'의 값을 다음 식에 대응되는 값으로 용접 대상물의 조건에 따라 가변시키면서 용접이 되도록 함으로써 별도의 인발공정을 거치지 않고 직접 인라인(in-line)상에서 8mmØ이하의 완제품 세경관을 제조하는 것을 특징으로 하는 고주파 용접에 의한 금속세경관 제조방법.여기에서 L : 고주파 용량리엑턴스C(C 또는 C') : 콘덴서 용량
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2002-0038507A KR100490213B1 (ko) | 2002-07-04 | 2002-07-04 | 고주파 용접에 의한 금속세경관 제조방법 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2002-0038507A KR100490213B1 (ko) | 2002-07-04 | 2002-07-04 | 고주파 용접에 의한 금속세경관 제조방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20040003731A KR20040003731A (ko) | 2004-01-13 |
KR100490213B1 true KR100490213B1 (ko) | 2005-05-17 |
Family
ID=37314715
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR10-2002-0038507A KR100490213B1 (ko) | 2002-07-04 | 2002-07-04 | 고주파 용접에 의한 금속세경관 제조방법 |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR100490213B1 (ko) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4081648A (en) * | 1977-02-04 | 1978-03-28 | Thermatool Corporation | High frequency in-line, electrical welding apparatus for small diameter metal tubing |
JPS5527437A (en) * | 1978-08-15 | 1980-02-27 | Kawasaki Steel Corp | Production of small diameter electric welded steel tube |
JPH01178380A (ja) * | 1988-01-04 | 1989-07-14 | Toshiba Corp | 電縫管製造装置のインピーダケース |
JPH05285673A (ja) * | 1992-04-07 | 1993-11-02 | Meidensha Corp | 小径電縫管の製造方法 |
-
2002
- 2002-07-04 KR KR10-2002-0038507A patent/KR100490213B1/ko active IP Right Grant
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4081648A (en) * | 1977-02-04 | 1978-03-28 | Thermatool Corporation | High frequency in-line, electrical welding apparatus for small diameter metal tubing |
JPS5527437A (en) * | 1978-08-15 | 1980-02-27 | Kawasaki Steel Corp | Production of small diameter electric welded steel tube |
JPH01178380A (ja) * | 1988-01-04 | 1989-07-14 | Toshiba Corp | 電縫管製造装置のインピーダケース |
JPH05285673A (ja) * | 1992-04-07 | 1993-11-02 | Meidensha Corp | 小径電縫管の製造方法 |
Also Published As
Publication number | Publication date |
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KR20040003731A (ko) | 2004-01-13 |
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