ZA201907301B - Continuous tube rolling method and mandrel assembly for the implementation thereof - Google Patents

Continuous tube rolling method and mandrel assembly for the implementation thereof

Info

Publication number
ZA201907301B
ZA201907301B ZA2019/07301A ZA201907301A ZA201907301B ZA 201907301 B ZA201907301 B ZA 201907301B ZA 2019/07301 A ZA2019/07301 A ZA 2019/07301A ZA 201907301 A ZA201907301 A ZA 201907301A ZA 201907301 B ZA201907301 B ZA 201907301B
Authority
ZA
South Africa
Prior art keywords
mandrel
mandrel assembly
continuous tube
implementation
tube
Prior art date
Application number
ZA2019/07301A
Inventor
Alexander Anatolyevich Klachkov
Igor Yuryevich Pyshmintsev
Alexander Vladimirovich Vydrin
Dmitriy Olegovich Struin
Pavel Yuryevich Gorozhanin
Nikolay Vladimirovich Trutnev
Vladimir Alexandrovich Toporov
Ivan Igorevich Lube
Evgeniy Alexandrovich Shkuratov
Ivan Nikolaevich Chernykh
Alexander Nikolaevich Kuznetsov
Dmitriy Valerievich Lokhanov
Vladislav Anatolyevich Mamchenko
Vladimir Leonidovich Pyatkov
Boris Grigoryevich Pyankov
Igor Anatolyevich Ershov
Original Assignee
Publichnoe Aktsionernoe Obshchestvo Trubnaya Metallurgicheskaya Kompaniya Pao Tmk
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 Publichnoe Aktsionernoe Obshchestvo Trubnaya Metallurgicheskaya Kompaniya Pao Tmk filed Critical Publichnoe Aktsionernoe Obshchestvo Trubnaya Metallurgicheskaya Kompaniya Pao Tmk
Publication of ZA201907301B publication Critical patent/ZA201907301B/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B25/00—Mandrels for metal tube rolling mills, e.g. mandrels of the types used in the methods covered by group B21B17/00; Accessories or auxiliary means therefor ; Construction of, or alloys for, mandrels or plugs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B17/00—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling
    • B21B17/02—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling with mandrel, i.e. the mandrel rod contacts the rolled tube over the rod length
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B25/00—Mandrels for metal tube rolling mills, e.g. mandrels of the types used in the methods covered by group B21B17/00; Accessories or auxiliary means therefor ; Construction of, or alloys for, mandrels or plugs
    • B21B25/06—Interchanging mandrels, fixing plugs on mandrel rods or cooling during interchanging mandrels

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Metal Extraction Processes (AREA)

Abstract

A method for rolling tubes on a continuous tube rolling mill involves deforming a tube billet using a mandrel assembly. The mandrel assembly comprises a cylindrical mandrel configured such that its ends can be alternately coupled to an attachment of the mandrel assembly. The mandrel is configured such that its ends have portions with a beveled lateral surface, wherein the angle of the generatrix of said surface to the longitudinal axis of the mandrel is between 10 and 70 degrees. The deformation of tube billets is carried out until the amount of wear on the working regions at both ends of the mandrel is not less than 25% of a critical value, then the mandrel is sharpened. The invention increases the service life of a mandrel, reduces the formation of flaws on the inside surface of the tubes, and prevents accidents from occurring during the rolling process.
ZA2019/07301A 2017-05-10 2019-11-04 Continuous tube rolling method and mandrel assembly for the implementation thereof ZA201907301B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/RU2017/000296 WO2018208184A1 (en) 2017-05-10 2017-05-10 Continuous tube rolling method and mandrel assembly for the implementation thereof

Publications (1)

Publication Number Publication Date
ZA201907301B true ZA201907301B (en) 2023-11-29

Family

ID=64105446

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA2019/07301A ZA201907301B (en) 2017-05-10 2019-11-04 Continuous tube rolling method and mandrel assembly for the implementation thereof

Country Status (10)

Country Link
US (1) US20200156127A1 (en)
EP (1) EP3623066A4 (en)
JP (1) JP2020519452A (en)
CN (1) CN110382126A (en)
CA (1) CA3052867A1 (en)
EA (1) EA036775B1 (en)
MX (1) MX2019013406A (en)
RU (1) RU2707052C1 (en)
WO (1) WO2018208184A1 (en)
ZA (1) ZA201907301B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111203444B (en) * 2020-01-07 2024-05-07 大冶特殊钢有限公司 Core rod for producing thin-wall seamless pipe
CN112474827B (en) * 2020-10-28 2022-09-13 太原重工股份有限公司 Automatic control method for reducing fixed-point abrasion of retained mandrel
CN112570448B (en) * 2020-11-27 2023-04-14 中北大学 Large-scale rectangular section manufacturing equipment with inner rib belt guide rail
JP7435652B2 (en) * 2021-04-28 2024-02-21 Ｊｆｅスチール株式会社 Mandrel bar, pipe material rolling method, and seamless pipe manufacturing method

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA24956A (en) 1886-09-13 Charles Kellogg Machine for manufacturing seamless tubes, etc.
SU121425A1 (en) * 1958-03-17 1958-11-30 М.А. Костенко The method of manufacture of pipes in the automatic mill pipe installation
DE1178032B (en) 1960-04-21 1964-09-17 Innocenti Soc Generale Process for cooling roll mandrels for tube rolling mills
HU155159A (en) 1964-10-21
JPS616961Y2 (en) * 1980-09-30 1986-03-03
US6006575A (en) * 1999-03-25 1999-12-28 Usx Corporation Reversible mandrel bar assembly
RU2322318C2 (en) * 2006-01-10 2008-04-20 ОАО "Челябинский трубопрокатный завод" Method for making and exploiting drifts of pilger mills for producing hot rolled tubes of large and mean diameters
RU2333053C1 (en) * 2006-11-07 2008-09-10 Открытое акционерное общество "Электростальский завод тяжелого машиностроения" Mandrel for cold pilger rolling
CA2701059C (en) * 2007-11-01 2012-08-07 Sumitomo Metal Industries, Ltd. Piercing and rolling plug, method of regenerating such piercing and rolling plug, and equipment line for regenerating such piercing and rolling plug
RU2449845C1 (en) * 2010-12-06 2012-05-10 Открытое акционерное общество "Синарский трубный завод" Mandrel for pipe lengthwise rolling mill
CN202143899U (en) * 2011-06-24 2012-02-15 无锡西姆莱斯石油专用管制造有限公司 Rolling tube movement rod head
CN202137188U (en) * 2011-06-27 2012-02-08 无锡西姆莱斯石油专用管制造有限公司 Mandrel connection assembly structure
RU2486976C1 (en) * 2011-11-24 2013-07-10 Открытое акционерное общество "Российский научно-исследовательский институт трубной промышленности" (ОАО "РосНИТИ") Dress assembly of continuous tube mill
CN203900098U (en) * 2014-04-23 2014-10-29 无锡大博金机械有限公司 Small-specification slender core rod produced through adopting hot continuous rolling
CN204365769U (en) * 2014-10-15 2015-06-03 中国长江航运集团南京金陵船厂 A kind of two ends bend pipe movement
RU2587702C1 (en) * 2014-12-30 2016-06-20 Федеральное государственное автономное образовательное учреждение высшего образования "Национальный исследовательский технологический университет "МИСиС" Disk mill mandrel
CN106269878B (en) * 2016-10-17 2018-12-18 北京京诚之星科技开发有限公司 Push rod and core rod connecting structure

Also Published As

Publication number Publication date
CA3052867A1 (en) 2018-11-15
EP3623066A4 (en) 2020-12-30
EA036775B1 (en) 2020-12-21
EP3623066A1 (en) 2020-03-18
BR112019023482A2 (en) 2020-06-30
MX2019013406A (en) 2020-08-17
JP2020519452A (en) 2020-07-02
EA201800621A1 (en) 2019-04-30
CN110382126A (en) 2019-10-25
WO2018208184A1 (en) 2018-11-15
US20200156127A1 (en) 2020-05-21
RU2707052C1 (en) 2019-11-21

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