KR100629166B1 - 피로 특성 향상을 위한 고주파 전기저항 용접 방법 - Google Patents
피로 특성 향상을 위한 고주파 전기저항 용접 방법 Download PDFInfo
- Publication number
- KR100629166B1 KR100629166B1 KR1020050024636A KR20050024636A KR100629166B1 KR 100629166 B1 KR100629166 B1 KR 100629166B1 KR 1020050024636 A KR1020050024636 A KR 1020050024636A KR 20050024636 A KR20050024636 A KR 20050024636A KR 100629166 B1 KR100629166 B1 KR 100629166B1
- Authority
- KR
- South Korea
- Prior art keywords
- welding
- high frequency
- electric resistance
- frequency electric
- resistance welding
- Prior art date
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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
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
- B21D5/06—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles
- B21D5/10—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles for making tubes
- B21D5/12—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles for making tubes making use of forming-rollers
-
- 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
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/02—Carriages for supporting the welding or cutting element
- B23K37/0276—Carriages for supporting the welding or cutting element for working on or in tubes
-
- 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
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S29/00—Metal working
- Y10S29/013—Method or apparatus with electric heating
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
Description
No. | 강 재 | t (mm) | P.I (kw) | W.S (m/min) | U.F (mm) | 피 로 특 성 (사 이 클 수) | |
1 | API X70 | 10.0 | 230 | 16 | 4.5 | 3.1 | 20 / No load drop |
2 | API X70 | 10.0 | 240 | 16 | 5.0 | 2.9 | 20 / No load drop |
3 | API X70 | 10.0 | 250 | 16 | 5.0 | 2.9 | 20 / No load drop |
4 | API X70 | 10.0 | 260 | 16 | 6.5 | 2.5 | 20 / No load drop |
5 | API X70 | 10.0 | 270 | 16 | 6.0 | 2.7 | 20 / No load drop |
6 | API X65 | 11.6 | 385 | 18 | 6.0 | 3.2 | 20 / No load drop |
7 | API X65 | 11.6 | 404 | 19 | 6.3 | 3.1 | 20 / No load drop |
8 | API X65 | 11.6 | 366 | 17 | 6.6 | 3.0 | 20 / No load drop |
9 | API X65 | 11.6 | 295 | 19 | 5.0 | 3.3 | 20 / No load drop |
10 | API X65 | 8.0 | 400 | 17 | 5.0 | 3.0 | 20 / No load drop |
11 | API X65 | 8.0 | 370 | 16 | 4.5 | 3.2 | 20 / No load drop |
12 | API X65 | 8.0 | 430 | 17 | 4.0 | 3.5 | 20 / No load drop |
13 | API X70 | 10.0 | 200 | 20 | 6.0 | 2.3 | 11 / load drop |
14 | API X65 | 11.6 | 450 | 17 | 5.0 | 3.9 | 4 / load drop |
15 | API X65 | 11.6 | 318 | 20 | 4.0 | 3.8 | 5 / load drop |
Claims (3)
- 용접 강관의 고주파 전기저항 용접 방법에 있어서, 원형으로 성형되는 열연 강대(11)의 폭 방향 양 단부가 가압롤(13)에 의해 일정한 범위의 수렴각(θ)을 갖도록 "V"자형을 이루면서 점진적으로 밀착되어 용접이 이루어지며, 대상 강재의 두께(t), 고주파 출력(P.I), 용접 속도(W.S) 및 업셋량(U.F)의 4가지 변수를 포함하는 다음의 수학식으로 표현되는 상관 관계식에 의해 용접이 제어됨을 특징으로 하는 피로 특성 향상을 위한 고주파 전기저항 용접 방법.수학식여기서, P.I는 고주파 출력(kW), W.S 는 용접 속도(10∼20m/min),t는 강재의 두께(8∼15mm), U.F는 업셋량(3~6mm)
- 제 1항에 있어서, 상기 수렴각(θ)은 4∼6°인 것을 특징으로 하는 피로 특성 향상을 위한 고주파 전기저항 용접 방법.
- 삭제
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020050024636A KR100629166B1 (ko) | 2005-03-24 | 2005-03-24 | 피로 특성 향상을 위한 고주파 전기저항 용접 방법 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020050024636A KR100629166B1 (ko) | 2005-03-24 | 2005-03-24 | 피로 특성 향상을 위한 고주파 전기저항 용접 방법 |
Publications (1)
Publication Number | Publication Date |
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KR100629166B1 true KR100629166B1 (ko) | 2006-09-28 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020050024636A KR100629166B1 (ko) | 2005-03-24 | 2005-03-24 | 피로 특성 향상을 위한 고주파 전기저항 용접 방법 |
Country Status (1)
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KR (1) | KR100629166B1 (ko) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103470873A (zh) * | 2013-09-18 | 2013-12-25 | 无锡天龙钢管有限公司 | Co2空调压缩机壳体专用钢管及其加工工艺 |
CN113118230A (zh) * | 2021-04-21 | 2021-07-16 | 中冶赛迪技术研究中心有限公司 | 一种闭口型钢热辊弯生产复合工艺 |
-
2005
- 2005-03-24 KR KR1020050024636A patent/KR100629166B1/ko active IP Right Grant
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103470873A (zh) * | 2013-09-18 | 2013-12-25 | 无锡天龙钢管有限公司 | Co2空调压缩机壳体专用钢管及其加工工艺 |
CN113118230A (zh) * | 2021-04-21 | 2021-07-16 | 中冶赛迪技术研究中心有限公司 | 一种闭口型钢热辊弯生产复合工艺 |
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