UA90116C2 - Method for producing seamless steel tube - Google Patents

Method for producing seamless steel tube

Info

Publication number
UA90116C2
UA90116C2 UAA200705651A UAA200705651A UA90116C2 UA 90116 C2 UA90116 C2 UA 90116C2 UA A200705651 A UAA200705651 A UA A200705651A UA A200705651 A UAA200705651 A UA A200705651A UA 90116 C2 UA90116 C2 UA 90116C2
Authority
UA
Ukraine
Prior art keywords
molding
forging
hollow block
rolling
tube
Prior art date
Application number
UAA200705651A
Other languages
Russian (ru)
Ukrainian (uk)
Inventor
Кристоф Прассер
Ролф Кюммерлинг
Стефан Виденмайер
Пьер Лефебвр
Руперт Визер
Роберт Коппенштайнер
Original Assignee
В & М Дойчленд Гмбх
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by В & М Дойчленд Гмбх filed Critical В & М Дойчленд Гмбх
Publication of UA90116C2 publication Critical patent/UA90116C2/en

Links

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  • Forging (AREA)

Abstract

The invention relates to a seamless hot-finished steel tube (16), whereby a thick-walled hollow block (8) is formed from a block (1) heated to the molding temperature in a first molding process by means of stamping, which is then drawn at the same temperature in a second molding step, by rolling with a change in diameter and wall thickness to give the pre-tube (bloom) and a finished tube is produced wherefrom in a third molding step by reduction rolling, characterized in that the second and third molding steps defined by rolling are replaced by one molding step in the form of a radial forging process, using an internal tool (11) inserted into the hollow block (8) and at least two forging cheeks of a forging machine (10), acting on the outer surface of the hollow block (8), whereby the hollow block (8) is alternately rotated and axially shifted during the idle stroke phase of the forging cheeks.
UAA200705651A 2004-10-25 2005-10-25 Method for producing seamless steel tube UA90116C2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102004052406 2004-10-25

Publications (1)

Publication Number Publication Date
UA90116C2 true UA90116C2 (en) 2010-04-12

Family

ID=38880881

Family Applications (1)

Application Number Title Priority Date Filing Date
UAA200705651A UA90116C2 (en) 2004-10-25 2005-10-25 Method for producing seamless steel tube

Country Status (3)

Country Link
CN (1) CN100518989C (en)
UA (1) UA90116C2 (en)
ZA (1) ZA200703246B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102501000B (en) * 2011-09-28 2014-04-02 南阳市红阳锻造有限公司 Precision forming process for rim supporting shafts of engineering machinery and heavy-duty trucks
CN102761045A (en) * 2012-07-19 2012-10-31 镇江步云电子有限公司 Insertion core manufacturing process for radiofrequency coaxial connector
CN113118353B (en) * 2021-04-21 2022-03-18 西安交通大学 Surface-strengthened inner-step shaft inner hole precision forming process
CN113525012A (en) * 2021-07-20 2021-10-22 安徽大昌科技股份有限公司 Eccentric flaring torsion beam longitudinal arm structure
CN114210901A (en) * 2021-10-26 2022-03-22 陕西钛博飞特航空制造股份有限公司 Titanium alloy connecting rod volume forming special die for aero-engine
CN114713667B (en) * 2022-03-18 2024-10-01 温州英特不锈钢有限公司 Stainless steel pipe forming device
CN114769352B (en) * 2022-03-21 2024-07-23 温州英特不锈钢有限公司 Stainless steel pipe forming method
CN117816882B (en) * 2024-03-06 2024-05-03 江苏圣贤锻造有限责任公司 Petrochemical pressure vessel tube plate forging equipment and process

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT346156B (en) * 1977-04-01 1978-10-25 Gfm Fertigungstechnik FORGING MACHINE FOR FORGING LARGE PIPES OVER A LONG THORN
CN1003005B (en) * 1985-04-01 1989-01-04 国营青岛钢厂 Method for manufacturing finned tube
RU2000160C1 (en) * 1992-06-04 1993-09-07 Московский институт стали и сплавов Blanks with elongated axis radial reduction method
SK282573B6 (en) * 1994-06-16 2002-10-08 Mannesmann Ag Method of producing a seamless hot-finished tube
EP0787541B1 (en) * 1994-10-20 2002-01-23 Sumitomo Metal Industries, Ltd. Method of manufacturing seamless steel pipes and manufacturing equipment therefor
CN2530742Y (en) * 2002-02-07 2003-01-15 赵金发 Tube mill mandrel
CN1207114C (en) * 2002-09-21 2005-06-22 王旭午 Technology for rolling seamless steel pipe

Also Published As

Publication number Publication date
CN100518989C (en) 2009-07-29
ZA200703246B (en) 2008-06-25
CN101068636A (en) 2007-11-07

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