MY124926A - Manufacturing method for angled steel pipes and manufacturing method for round steel pipes - Google Patents
Manufacturing method for angled steel pipes and manufacturing method for round steel pipesInfo
- Publication number
- MY124926A MY124926A MYPI20015370A MYPI20015370A MY124926A MY 124926 A MY124926 A MY 124926A MY PI20015370 A MYPI20015370 A MY PI20015370A MY PI20015370 A MYPI20015370 A MY PI20015370A MY 124926 A MY124926 A MY 124926A
- Authority
- MY
- Malaysia
- Prior art keywords
- steel pipes
- portions
- manufacturing
- allow
- angled steel
- Prior art date
Links
Landscapes
- Bending Of Plates, Rods, And Pipes (AREA)
- Rod-Shaped Construction Members (AREA)
- Heat Treatment Of Steel (AREA)
Abstract
ANGLED STEEL PIPES MANUFACTURED BY COLD FORMING ALLOW ANGLE PORTIONS AND SEAM-WELDED PORTIONS THEREOF TO HAVE HARDNESS VALUES PRETTY HIGHER THAN THOSE OF FLAT PLATE PORTIONS AND NO YIELD POINTS, ALLOW TENSILE STRESS AND COMPRESSIVE STRESS TO REMAIN IN THE ANGLE PORTIONS AND SEAM-WELDED PORTIONS, THEREBY LOWERING BUCKLING STRENGHT AND ALLOW THE ANGLE PORTIONS TO BE REMARKABLY EMBRITTLED DUE TO TOUGHNESS DEFORMATION LOCALLY REMAINING IN ANGLE PORTIONS AFTER BENDING. THE METHOD ACCORDING TO THE PRESENT INVENTION MAKES IT POSSIBLE TO MANUFACTURE ANGLED STEEL PIPES WHICH ARE SOFT AND HIGHLY STRETCHABLE OVER THE ENTIRE SECTIONS THEREOF, ALMOST FREE FROM RESIDUAL STRESSES, AND HAVE HIGH BUCKLING STRENGTH, EXCELLENT SECONDARY WELDABILITY AND SUFFECIENT TOUGHNESS BY HOT FORMING WITH AN ANGLED STEEL PIPE FORMING MILL.@@(FIG. 1)
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7192343A JPH0938721A (en) | 1995-07-28 | 1995-07-28 | Production of square steel tube |
JP19783895 | 1995-08-03 | ||
JP20263795 | 1995-08-09 | ||
JP7288233A JPH0999324A (en) | 1995-08-03 | 1995-11-07 | Manufacture of square tube |
JP7288232A JPH09103821A (en) | 1995-08-09 | 1995-11-07 | Manufacture of square steel tube |
JP01478396A JP3231239B2 (en) | 1996-01-31 | 1996-01-31 | Steel pipe manufacturing method |
Publications (1)
Publication Number | Publication Date |
---|---|
MY124926A true MY124926A (en) | 2006-07-31 |
Family
ID=27548533
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MYPI0105380 MY126145A (en) | 1995-07-28 | 1996-07-27 | Manufacturing method for angled steel pipes and manufacturing method for round steel pipes |
MYPI20015370A MY124926A (en) | 1995-07-28 | 1996-07-27 | Manufacturing method for angled steel pipes and manufacturing method for round steel pipes |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MYPI0105380 MY126145A (en) | 1995-07-28 | 1996-07-27 | Manufacturing method for angled steel pipes and manufacturing method for round steel pipes |
Country Status (3)
Country | Link |
---|---|
CN (3) | CN1066075C (en) |
HK (2) | HK1036028A1 (en) |
MY (2) | MY126145A (en) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102861766B (en) * | 2012-09-20 | 2015-04-01 | 衡阳华菱钢管有限公司 | Square tube rolling device, square tube sizing mill with same and production method of square tube |
CN103629965A (en) * | 2013-11-29 | 2014-03-12 | 锦州秀亭制管有限公司 | Cooling pipe with square pits |
CN104128373A (en) * | 2014-08-12 | 2014-11-05 | 无锡市瑞尔精密机械股份有限公司 | Novel machine set for producing hot rolling seamless square steel pipe |
CN104353699B (en) * | 2014-10-11 | 2016-09-21 | 浙江久德不锈钢型材有限公司 | Steel pipe mould |
CN104307924A (en) * | 2014-11-14 | 2015-01-28 | 武汉钢铁(集团)公司 | Square rectangular tube cold roll forming method |
JP6816827B2 (en) * | 2018-03-16 | 2021-01-20 | Jfeスチール株式会社 | Manufacturing method of square steel pipe and square steel pipe |
CN108453153B (en) * | 2018-05-03 | 2024-06-28 | 石家庄富瑞沃机电设备有限公司 | Roller device for directly forming square tube |
KR20210135287A (en) * | 2019-04-08 | 2021-11-12 | 제이에프이 스틸 가부시키가이샤 | Rectangular steel pipe, manufacturing method thereof, and building structure |
CN114364468B (en) * | 2019-08-30 | 2023-03-17 | 杰富意钢铁株式会社 | Square steel pipe, method for manufacturing same, and building structure |
CN111229859B (en) * | 2020-01-14 | 2021-12-03 | 长沙市大川防火材料有限公司 | Automatic production process of air duct |
WO2021187115A1 (en) * | 2020-03-16 | 2021-09-23 | Jfeスチール株式会社 | Square steel pipe for beam-column joint, beam-column joint structure using same, and method for manufacturing square steel pipe |
CN111687213A (en) * | 2020-06-23 | 2020-09-22 | 刘伟良 | Hot rolling device is used in production of nonrust steel pipe |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU5477299A (en) * | 1998-08-12 | 2000-03-06 | Rofin Australia Pty Ltd | Fluid light guide |
-
1996
- 1996-07-26 CN CN96113345A patent/CN1066075C/en not_active Expired - Fee Related
- 1996-07-26 CN CNB001270524A patent/CN1177656C/en not_active Expired - Fee Related
- 1996-07-27 MY MYPI0105380 patent/MY126145A/en unknown
- 1996-07-27 MY MYPI20015370A patent/MY124926A/en unknown
-
2000
- 2000-09-15 CN CN 00127053 patent/CN1186141C/en not_active Expired - Fee Related
-
2001
- 2001-10-08 HK HK01107038A patent/HK1036028A1/en not_active IP Right Cessation
- 2001-10-08 HK HK01107036A patent/HK1036027A1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
CN1186141C (en) | 2005-01-26 |
CN1177656C (en) | 2004-12-01 |
CN1291532A (en) | 2001-04-18 |
HK1036027A1 (en) | 2001-12-21 |
CN1154880A (en) | 1997-07-23 |
MY126145A (en) | 2006-09-29 |
CN1291533A (en) | 2001-04-18 |
CN1066075C (en) | 2001-05-23 |
HK1036028A1 (en) | 2001-12-21 |
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