JP2010188384A5 - - Google Patents
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- 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
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- 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.)
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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.
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.
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 |
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JP (1) | JP5355134B2 (en) |
Families Citing this family (4)
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)
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 |
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2009
- 2009-02-19 JP JP2009036032A patent/JP5355134B2/en active Active
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