DE50201715D1 - Method for operating a stretch-reducing mill and stretch-reducing mill - Google Patents

Method for operating a stretch-reducing mill and stretch-reducing mill

Info

Publication number
DE50201715D1
DE50201715D1 DE2002501715 DE50201715T DE50201715D1 DE 50201715 D1 DE50201715 D1 DE 50201715D1 DE 2002501715 DE2002501715 DE 2002501715 DE 50201715 T DE50201715 T DE 50201715T DE 50201715 D1 DE50201715 D1 DE 50201715D1
Authority
DE
Germany
Prior art keywords
roll stand
reducing mill
rear end
stretch
pipe
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
DE2002501715
Other languages
German (de)
Inventor
Dr Pehle
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SMS Group GmbH
Original Assignee
SMS Meer GmbH
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 SMS Meer GmbH filed Critical SMS Meer GmbH
Priority to DE2002501715 priority Critical patent/DE50201715D1/en
Application granted granted Critical
Publication of DE50201715D1 publication Critical patent/DE50201715D1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B35/00—Drives for metal-rolling mills, e.g. hydraulic drives
    • B21B35/02—Drives for metal-rolling mills, e.g. hydraulic drives for continuously-operating mills
    • B21B35/025—Drives for metal-rolling mills, e.g. hydraulic drives for continuously-operating mills for stretch-reducing of tubes
    • 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
    • B21B17/14—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling without mandrel, e.g. stretch-reducing mills
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/78—Control of tube rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B15/0007—Cutting or shearing the product
    • B21B2015/0014—Cutting or shearing the product transversely to the rolling direction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2273/00—Path parameters
    • B21B2273/18—Presence of product
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2273/00—Path parameters
    • B21B2273/20—Track of product
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2275/00—Mill drive parameters
    • B21B2275/02—Speed
    • B21B2275/04—Roll speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2275/00—Mill drive parameters
    • B21B2275/02—Speed
    • B21B2275/06—Product speed

Abstract

Process for operating a stretch reducing mill for rolling pipes comprises: determining a time point at which the rear end of the pipe leaves the roll stand in the conveying direction; establishing a time interval at which the rear end of the pipe leaves the roll stand, and controlling and regulating a drive of the roll stand. <??>Process for operating stretch reducing mill for rolling pipes comprises: determining a time point at which the rear end (8) of the pipe (2) leaves the roll stand (3d'''') in the conveying direction; establishing a time interval of a prescribed duration in which the time point lies and at which the rear end of the pipe leaves the roll stand; and controlling and regulating a drive (7'''') of the roll stand, so that the rollers of the roll stand are driven at a constant speed during the duration of the time interval. <??>An Independent claim is also included for a stretch reducing mill for rolling pipes. <??>Preferred Features: A tolerance is given for controlling and regulating the drive of the roll stand and is not exceeded. A sensor (10) is arranged in front of the roll stand for acquiring the time point when the rear end of the pipe passes the sensor.
DE2002501715 2001-11-24 2002-10-09 Method for operating a stretch-reducing mill and stretch-reducing mill Expired - Lifetime DE50201715D1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE2002501715 DE50201715D1 (en) 2001-11-24 2002-10-09 Method for operating a stretch-reducing mill and stretch-reducing mill

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10157742A DE10157742C1 (en) 2001-11-24 2001-11-24 Method of operating a stretch-reducing mill and stretch-reducing mill
DE2002501715 DE50201715D1 (en) 2001-11-24 2002-10-09 Method for operating a stretch-reducing mill and stretch-reducing mill

Publications (1)

Publication Number Publication Date
DE50201715D1 true DE50201715D1 (en) 2005-01-13

Family

ID=7706885

Family Applications (2)

Application Number Title Priority Date Filing Date
DE10157742A Expired - Fee Related DE10157742C1 (en) 2001-11-24 2001-11-24 Method of operating a stretch-reducing mill and stretch-reducing mill
DE2002501715 Expired - Lifetime DE50201715D1 (en) 2001-11-24 2002-10-09 Method for operating a stretch-reducing mill and stretch-reducing mill

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE10157742A Expired - Fee Related DE10157742C1 (en) 2001-11-24 2001-11-24 Method of operating a stretch-reducing mill and stretch-reducing mill

Country Status (7)

Country Link
EP (1) EP1314491B1 (en)
CN (1) CN1236873C (en)
AT (1) ATE284279T1 (en)
DE (2) DE10157742C1 (en)
ES (1) ES2234970T3 (en)
RU (1) RU2300433C2 (en)
UA (1) UA72613C2 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103406371B (en) * 2013-07-04 2015-11-25 中国重型机械研究院股份公司 A kind of cold pilger mill pipe seam detecting and controlling system and method
CN103447300B (en) * 2013-08-30 2015-08-05 湖北新冶钢特种钢管有限公司 Central driving reducing mill and reducing mill are to the reducing process of hot rolled seamless steel tube
CN103801558B (en) * 2014-01-27 2015-12-30 胜利油田康贝石油工程装备有限公司 Oil the ladder type seam processing method of slot pipe and equipment
DE102017220750A1 (en) * 2017-11-21 2019-05-23 Sms Group Gmbh Device for controlling a draft-reducing mill
DE102018207908A1 (en) * 2018-05-18 2019-11-21 Sms Group Gmbh Stretch reduction mill with improved diameter and wall thickness tolerance
CN109047335A (en) * 2018-06-11 2018-12-21 黑龙江建龙化工有限公司 Steel pipe sizes outer diameter control method
DE102018217378B3 (en) * 2018-10-11 2020-03-26 Sms Group Gmbh Wall thickness control when reducing pipe stretch
CN109877160B (en) * 2019-04-09 2020-03-31 浙江鼎尚不锈钢有限公司 Four-roller reducing mill for high-precision seamless steel pipe
CN112872044B (en) * 2021-01-13 2023-02-17 首钢京唐钢铁联合有限责任公司 Method and device for controlling rolling rhythm
CN114515762B (en) * 2022-01-28 2024-01-26 广西钢铁集团有限公司 Method for controlling tail size of high-speed wire rod round steel

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3601693A1 (en) * 1986-01-17 1987-07-23 Mannesmann Ag ROLLING MILL FOR TUBE REDUCTION
DE4446659C1 (en) * 1994-12-16 1996-07-25 Mannesmann Ag Working method for producing pipe in drawing roller

Also Published As

Publication number Publication date
CN1236873C (en) 2006-01-18
CN1422709A (en) 2003-06-11
EP1314491B1 (en) 2004-12-08
RU2300433C2 (en) 2007-06-10
EP1314491A1 (en) 2003-05-28
ATE284279T1 (en) 2004-12-15
UA72613C2 (en) 2005-03-15
DE10157742C1 (en) 2003-06-18
ES2234970T3 (en) 2005-07-01

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition