JP2010188384A5 - - Google Patents

Download PDF

Info

Publication number
JP2010188384A5
JP2010188384A5 JP2009036032A JP2009036032A JP2010188384A5 JP 2010188384 A5 JP2010188384 A5 JP 2010188384A5 JP 2009036032 A JP2009036032 A JP 2009036032A JP 2009036032 A JP2009036032 A JP 2009036032A JP 2010188384 A5 JP2010188384 A5 JP 2010188384A5
Authority
JP
Japan
Prior art keywords
hot bar
warpage
table roller
collision
damage
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.)
Granted
Application number
JP2009036032A
Other languages
Japanese (ja)
Other versions
JP5355134B2 (en
JP2010188384A (en
Filing date
Publication date
Application filed filed Critical
Priority to JP2009036032A priority Critical patent/JP5355134B2/en
Priority claimed from JP2009036032A external-priority patent/JP5355134B2/en
Publication of JP2010188384A publication Critical patent/JP2010188384A/en
Publication of JP2010188384A5 publication Critical patent/JP2010188384A5/ja
Application granted granted Critical
Publication of JP5355134B2 publication Critical patent/JP5355134B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Description

粗圧延の出側でホットバー先端が上下に反ると、テーブルローラがホットバー先端の衝突によって損傷することがある。
粗圧延機本体のトラブルと同様、粗圧延機前後のテーブルローラ(正確には、その関連設備であるジョイント、カップリング等)の損傷は、修復作業による長時間のライン停止が発生し、生産性の低下につながる。テーブルローラの損傷は、一般に、ホットバー反りを抑制することで防止できると考えられている。
If the hot bar tip warps up and down on the exit side of rough rolling, the table roller may be damaged by the collision of the hot bar tip.
Similar to the troubles in the roughing mill itself, damage to the table rollers before and after the roughing mill (more precisely, related equipment such as joints and couplings) results in long-term line stoppage due to repair work, and productivity. Leading to a decline. It is generally considered that damage to the table roller can be prevented by suppressing hot bar warpage.

特開平10−137829号公報JP-A-10-137829 特開2005−254287号公報JP 2005-254287 A 特開昭63−183711号公報Japanese Unexamined Patent Publication No. 63-183711 特開昭63−137508号公報JP-A-63-137508 特開2006−305579号公報JP 2006-305579 A

テーブルローラにホットバー先端が衝突することによる損傷は、衝突時の衝撃力により左右されるが、前述する従来の方法のように、ホットバー先端の反りを測定したり、ワークロールのトルクや摩擦係数或いはホットバーの温度を求めて、加熱炉での焼きむらをなくしたり、圧延油を供給し、或いはワークロールの周速を変更させるのは、反りの抑制にある程度効果があるにしても、反りが全くなくなることは期待できず、反りによりテーブルローラに衝突して損傷を生ずるおそれは解消されない。
しかしホットバー先端の衝突に対するテーブルローラの保護についての先行技術文献は未だ知られておらず、粗圧延工程における設備保護に関する文献は、前記特許文献3−5に示されるように粗圧延機のトラブル防止方法に偏っている。
The damage caused by the collision of the hot bar tip with the table roller depends on the impact force at the time of the collision. However, as in the conventional method described above, the hot bar tip warpage is measured, and the work roll torque and friction are measured. Obtaining the coefficient or the temperature of the hot bar, eliminating uneven burning in the heating furnace, supplying rolling oil, or changing the peripheral speed of the work roll is effective to some extent in suppressing warpage, It cannot be expected that there will be no warpage at all, and the possibility of causing damage by colliding with the table roller due to warpage cannot be resolved.
However, the prior art document about the protection of the table roller against the collision of the hot bar tip is not yet known, and the document regarding the equipment protection in the rough rolling process is a trouble of the rough rolling mill as shown in Patent Document 3-5. It is biased toward prevention methods.

本発明は、従来直接的に保護されていなかったテーブルローラの破損防止方法に主眼を置き、前述する従来の反り抑制技術と組み合わせ、テーブルローラの損傷をより確実に防止することができるホットバー先端の反り抑制方法を提供することを目的とする。
The present invention focuses on a table roller breakage prevention method that has not been directly protected in the past, and is combined with the above-described conventional warp suppression technology to prevent damage to the table roller more reliably. An object of the present invention is to provide a method for suppressing warpage.

JP2009036032A 2009-02-19 2009-02-19 Hot bar tip warpage control method Active JP5355134B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2009036032A JP5355134B2 (en) 2009-02-19 2009-02-19 Hot bar tip warpage control method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2009036032A JP5355134B2 (en) 2009-02-19 2009-02-19 Hot bar tip warpage control method

Publications (3)

Publication Number Publication Date
JP2010188384A JP2010188384A (en) 2010-09-02
JP2010188384A5 true JP2010188384A5 (en) 2012-04-05
JP5355134B2 JP5355134B2 (en) 2013-11-27

Family

ID=42815014

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2009036032A Active JP5355134B2 (en) 2009-02-19 2009-02-19 Hot bar tip warpage control method

Country Status (1)

Country Link
JP (1) JP5355134B2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104070073A (en) * 2013-03-28 2014-10-01 宝钢不锈钢有限公司 Head warping control method for rough rolling in production of hot-rolled steel strips
CN112046997B (en) * 2020-08-19 2022-02-01 宝钢特钢韶关有限公司 Main conveying roller anti-collision device and using method thereof
CN114160588A (en) * 2020-09-11 2022-03-11 宝山钢铁股份有限公司 Warping buckle head control method for rolling stainless steel composite plate
CN112893475A (en) * 2021-01-11 2021-06-04 山西太钢不锈钢股份有限公司 Control method for buckling end of plate blank

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6360012A (en) * 1986-09-01 1988-03-16 Kawasaki Steel Corp Control method for upper and lower warping of stock to be rolled
JPH01241314A (en) * 1988-03-24 1989-09-26 Sumitomo Metal Ind Ltd Method for controlling plate camber in hot rolling mill
JPH0985318A (en) * 1995-09-18 1997-03-31 Sumitomo Metal Ind Ltd Prevention of nose bending of hot rolling stock
JPH10137829A (en) * 1996-11-01 1998-05-26 Kawasaki Steel Corp Camber generation preventing method in rough rolling of continuous hot rolling and estimating device for camber generating factor
JP3777046B2 (en) * 1997-04-24 2006-05-24 新日本製鐵株式会社 Sheet rolling method
JP3298465B2 (en) * 1997-07-30 2002-07-02 住友金属工業株式会社 Prevention method of sheet warpage in hot rolling
JP2000280016A (en) * 1999-03-30 2000-10-10 Kawasaki Steel Corp Method of detecting downward bend of sheet bar
JP2001252712A (en) * 2000-03-07 2001-09-18 Kawasaki Steel Corp Device for detecting downward warpage of hot rolled sheet bar
JP2005254287A (en) * 2004-03-12 2005-09-22 Jfe Steel Kk Method for suppressing nose warping of material to be rolled

Similar Documents

Publication Publication Date Title
JP2010188384A5 (en)
KR20120094142A (en) Cold rolling method for preventing high silicon strip steel from breaking
JP5924320B2 (en) Method for reducing tip warpage of hot-rolled steel sheet in hot finish rolling
JP5355134B2 (en) Hot bar tip warpage control method
JP5768468B2 (en) Cold rolling mill and cold rolling method for metal strip
JP4890336B2 (en) Thick steel plate manufacturing method
JP2008161883A (en) Warp control method of thick steel plate
JP2010179321A (en) Slip prevention method in rough rolling
CN107377630B (en) Method for controlling quality of working roll surface in hot rolling finish rolling area
JP2009248186A (en) Buckling prevention method of hot slab width press
JP6922668B2 (en) Hot rolling method and hot rolling machine line
JP4760403B2 (en) Thermal crown control device, rolling mill, and metal strip manufacturing method using the rolling mill
JP6351743B2 (en) Method for preparing hot-rolled steel semi-finished product for cold rolling
JP2010179322A (en) Slip prevention method in rough rolling
JP4277923B2 (en) Hot rolling method for hat-shaped steel sheet piles
JP3298465B2 (en) Prevention method of sheet warpage in hot rolling
KR100799459B1 (en) Spindle protecting apparatus when a rupture occurs in a driving apparatus of hot rolling mill
JP2020131242A (en) Biting detection device of rolling machine, detection method and rolling machine
JP6003849B2 (en) Rail manufacturing method and manufacturing apparatus
JP2007330984A (en) Method of hot-rolling steel
JP6015270B2 (en) Manufacturing method of high Cr seamless steel pipe
JP4069113B2 (en) Anti-slip method for sizing press
JP2010042432A (en) Cooling apparatus of thick steel plate
CN105238950B (en) One Albatra metal protects nut and its manufacture method
JP5581773B2 (en) Method for preventing breakage of metal strip in cold rolling mill