TWI233378B - Method of influencing the profile of rolled strip - Google Patents

Method of influencing the profile of rolled strip Download PDF

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Publication number
TWI233378B
TWI233378B TW091101183A TW91101183A TWI233378B TW I233378 B TWI233378 B TW I233378B TW 091101183 A TW091101183 A TW 091101183A TW 91101183 A TW91101183 A TW 91101183A TW I233378 B TWI233378 B TW I233378B
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TW
Taiwan
Prior art keywords
steel bar
rolling
edge area
cooling
edge
Prior art date
Application number
TW091101183A
Other languages
English (en)
Inventor
Konrad Walter Schunn
Original Assignee
Sms Demag Ag
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 Demag Ag filed Critical Sms Demag Ag
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Publication of TWI233378B publication Critical patent/TWI233378B/zh

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
    • B21B45/0203—Cooling
    • B21B45/0206—Coolants
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
    • 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
    • B21B37/28—Control of flatness or profile during rolling of strip, sheets or plates
    • B21B37/44—Control of flatness or profile during rolling of strip, sheets or plates using heating, lubricating or water-spray cooling of the product
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
    • B21B45/0203—Cooling
    • B21B45/0209—Cooling devices, e.g. using gaseous coolants
    • B21B45/0215—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes
    • B21B45/0218—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes for strips, sheets, or plates
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
    • C21D8/0236—Cold rolling
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/56—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering characterised by the quenching agents
    • C21D1/613—Gases; Liquefied or solidified normally gaseous material
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D2221/00—Treating localised areas of an article
    • C21D2221/02—Edge parts
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
    • C21D9/54—Furnaces for treating strips or wire
    • C21D9/56—Continuous furnaces for strip or wire
    • C21D9/573—Continuous furnaces for strip or wire with cooling

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Metal Rolling (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)

Description

1233378 A7 B7 經濟部智慧財4局g(工消費合作社印製 五、發明説明（1 ) 發明背景 本發明係關於一種影響輥軋條外形之方法，係用於在 至少一輥軋臺中之冷軋。 在冷軋鋼條期間，相較於鋼條的中間區域，在鋼條的 邊緣區域會產生不同的負荷，如此對於在整個寬度上的鋼 條厚度會產生不利的影響。除了在輥輪上產生熱彎曲以及 在鋼條邊緣較大的輥軋磨耗之外，如此會導致在邊緣的輪 廓要比起鋼帶中間區域要厚，藉由材質在邊緣的寬度方向 上具有橫向流動特性，會導致在厚度上的顯著下降。相較 於鋼條的中間區域，這些較薄的鋼條邊緣輪廓，導因於材 質流動特性，係被稱爲邊緣下降。 根據EP 0 7 7 6 7 1 0 A1揭示一方法，可以 減少這些邊緣下降，此方法爲在鋼條的邊緣區域中更加極 度地冷卻輥輪本體。結果，在鋼條邊緣區域中的輥輪直徑 會輕微減少，致使在這些區域中的輥輪間隙會對應地上升 。如此可抵銷由於材質橫向流動特性所導致的邊緣下降。 也可以藉由在輥輪本體尾端上執行一面對操作而在鋼 條的邊緣區域中達成在輥輪間隙中的對應增加。 最後，已知可藉由工作輥輪之以鋼條邊緣導向的移動 而影響邊緣下降的形成。 假如邊緣下降的形成並沒有被抵銷的話，被輥軋的鋼 帶在整個寬度上則不會達成所要求的鋼條厚度，因此無法 被使用。 然後則需要進一步的加工，藉由修剪邊緣達成精確。 (請先閱讀背面之注意事- 4 項再填· 裝—ς— :寫本頁) 訂 本紙張尺度適用中國國家標準（CNS ) A4規格（210X 297公釐） -4 - 1233378 A7 B7 五、發明説明（2 ) 這不僅是一額外的操作，也會增加進一步的成本。 發明槪述 本發明的目的是要提供一種方法，藉此減少邊緣下降 的發生。 藉由以下方式，達成本發明的目的，亦即在鋼條移動 到輥軋臺或第一輥軋臺中之前，將鋼條的正對邊緣區域予 以極度地冷卻。 例如，可藉由將鋼條的邊緣區域暴露在液態氮中而達 成此種冷卻。 爲了盡快達成此冷卻，由於考慮到一般很高的輥軋速 度，假如鋼條的邊緣區域係被引導通過配置在鋼條兩側上 的U形圍欄，如此將會很方便，而且在此圍欄內鋼條的邊 緣區域可以暴露到冷卻劑中。 經濟部智慧財產局員工消費合作社印^ j: ·-----0^ί— (請先閲讀背面之注意事項再填寫本頁) 在本發明的情形中，未輥軋的鋼條邊緣在進入輥軋臺 之前會相繼變成較低的溫度。這個順序的原因是因爲輥軋 的原料在鋼條的邊緣會變得比較硬，致使它較難以變形。 而且，它在低溫下會稍微收縮，換句話說會變得較薄。然 而’最後鋼條邊緣的低溫亦同樣對於接觸鋼條的輥輪本體 尾端具有影響’由於藉由極度地冷卻，所以在此區域中其 直徑會減少。如此會累積影響程度，以便導致鋼條在邊緣 區域會比中央區域輥軋得較少，如此會顯著地減少邊緣下 降。 本發明的方法相較於習知方法具有許多優點，因爲一 本紙張尺度適用中國國家標準（CNS ) Α4規格（210X 297公釐） -5- 1233378 A7 _B7_ 五、發明説明（3 ) .方面不需要複雜的輥軋臺結構，如此對於工作輥輪的移動 較方便。 另一方面，上述的方法可延長輥輪的壽命，且最後用 於冷卻鋼條邊緣的裝置可以在隨後的時間安裝而不會在輥 軋臺的整個安裝上產生干渉。 配置在輥軋臺的上游，在多數連續的輥軋臺之情形中 ，在第一輥軋臺的上游，在欲被輥軋的鋼條兩側是冷卻箱 ，係用以當鋼條經過時使其在正對邊緣區域產生較低溫。 具有這些極度冷卻的鋼條邊緣，鋼條會進入輥軋臺內 且然後以一般方式輥軋，如此可防止邊緣下降，或至少顯 著地減少。 圖式簡單說明 圖1顯示依據本發明在輥軋臺上游冷卻輥軋條之示 意圖。 (請先閱讀背面之注意事 I# •項再填」 裝--r :寫本頁) • ----訂 經濟部智慧財產局員工消費合作社印製 本紙張尺度適用中國國家標準（CNS ) Α4規格（210Χ297公釐） -6-

Claims (1)

1233378 A8 B8 C8 _ D8 々、申請專利範圍 1 1 . 一種影響輥軋條外形之方法，此方法適用於在至 少一輥軋臺中的冷軋，其中在鋼條進入輥軋臺或第一輥軋 臺之前，在鋼條的正對邊緣區域進行極度地冷卻。 2 ·如申請專利範圍第1項之方法，其中可藉由將鋼 條邊緣暴露在液態氮中執行冷卻。 3 ·如申請專利範圍第1或2項之方法，其中鋼條的 邊緣區域是被導引通過配置在鋼條兩邊上的U形圍欄，在 此圍欄內鋼條的邊緣區域會暴露到冷卻齊ij。 (請先閱讀背面之注意事項再填寫本頁) 經濟部智慧財產局員工消費合作社印製 本紙張尺度適用中國國家梂準（CNS ) Α4規格（210Χ297公釐）
TW091101183A 2001-02-01 2002-01-24 Method of influencing the profile of rolled strip TWI233378B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE10106273A DE10106273A1 (de) 2001-02-01 2001-02-01 Verfahren zum Beeinflussen des Profils von Walzband

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TWI233378B true TWI233378B (en) 2005-06-01

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EP (1) EP1355747B1 (zh)
JP (1) JP2004520169A (zh)
KR (1) KR100821243B1 (zh)
CN (1) CN1230262C (zh)
AT (1) ATE279271T1 (zh)
DE (2) DE10106273A1 (zh)
TW (1) TWI233378B (zh)
WO (1) WO2002060611A1 (zh)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2833871B1 (fr) * 2001-12-20 2004-07-09 Usinor Procede et installation de fabrication de bandes metalliques a partir de bandes coulees directement a partir de metal liquide
UA94068C2 (ru) * 2006-10-21 2011-04-11 Смс Зимаг Акциенгезелльшафт Устройство для измерения натяжения металлической полосы
KR200449465Y1 (ko) * 2010-02-08 2010-07-12 윤원섭 방사선 자동선량계용 자동지급 시스템
CN102059250B (zh) * 2010-11-09 2012-07-04 燕山大学 采用低温液氮冷却介质的电塑性二辊轧机
CN110404964B (zh) * 2019-07-08 2020-07-31 中南大学 一种宽度方向差性能铝合金带材的轧制制备方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5586602A (en) * 1978-12-25 1980-06-30 Kawasaki Steel Corp Skinpass rolling method for cold rolled steel strip
JPS5674301A (en) * 1979-11-20 1981-06-19 Sumitomo Metal Ind Ltd Preventing method for edge drop of steel strip during rolling work
JPS5758909A (en) * 1980-09-29 1982-04-09 Nippon Steel Corp Controller for rolled shape
DE4433720A1 (de) * 1994-09-21 1996-03-28 Linde Ag Verfahren und Vorrichtung zum Härten von Skistahlkanten
DE19654068A1 (de) * 1996-12-23 1998-06-25 Schloemann Siemag Ag Verfahren und Vorrichtung zum Walzen eines Walzbandes
JPH10192903A (ja) * 1997-01-10 1998-07-28 Sumitomo Metal Ind Ltd 熱間圧延用スラブの幅圧下方法
JP3276318B2 (ja) * 1997-08-28 2002-04-22 三菱重工業株式会社 鋼板端部の冷却装置

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Publication number Publication date
EP1355747A1 (de) 2003-10-29
KR20030068572A (ko) 2003-08-21
JP2004520169A (ja) 2004-07-08
ATE279271T1 (de) 2004-10-15
CN1230262C (zh) 2005-12-07
DE10106273A1 (de) 2002-08-08
KR100821243B1 (ko) 2008-04-10
CN1489497A (zh) 2004-04-14
WO2002060611A1 (de) 2002-08-08
EP1355747B1 (de) 2004-10-13
DE50201285D1 (de) 2004-11-18

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