JPS6186004A - Skinpass rolling method of stainless steel sheet - Google Patents
Skinpass rolling method of stainless steel sheetInfo
- Publication number
- JPS6186004A JPS6186004A JP20799884A JP20799884A JPS6186004A JP S6186004 A JPS6186004 A JP S6186004A JP 20799884 A JP20799884 A JP 20799884A JP 20799884 A JP20799884 A JP 20799884A JP S6186004 A JPS6186004 A JP S6186004A
- Authority
- JP
- Japan
- Prior art keywords
- rolling
- oil
- mill
- cold
- stainless steel
- 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.)
- Pending
Links
- 238000005096 rolling process Methods 0.000 title claims abstract description 64
- 229910001220 stainless steel Inorganic materials 0.000 title claims abstract description 12
- 239000010935 stainless steel Substances 0.000 title claims abstract description 12
- 238000000034 method Methods 0.000 title claims description 5
- 239000010731 rolling oil Substances 0.000 claims abstract description 31
- 238000005097 cold rolling Methods 0.000 claims abstract description 25
- 239000000839 emulsion Substances 0.000 claims abstract description 10
- 239000002480 mineral oil Substances 0.000 claims abstract description 6
- 235000010446 mineral oil Nutrition 0.000 claims abstract description 6
- 239000003921 oil Substances 0.000 abstract description 8
- 230000009191 jumping Effects 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 3
- -1 amine salts Chemical class 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 206010013786 Dry skin Diseases 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000037336 dry skin Effects 0.000 description 1
- 238000004945 emulsification Methods 0.000 description 1
- 239000003995 emulsifying agent Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000010721 machine oil Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000011550 stock solution Substances 0.000 description 1
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
- B21B45/0239—Lubricating
- B21B45/0245—Lubricating devices
- B21B45/0248—Lubricating devices using liquid lubricants, e.g. for sections, for tubes
- B21B45/0251—Lubricating devices using liquid lubricants, e.g. for sections, for tubes for strips, sheets, or plates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
- B21B13/14—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories having counter-pressure devices acting on rolls to inhibit deflection of same under load; Back-up rolls
- B21B13/147—Cluster mills, e.g. Sendzimir mills, Rohn mills, i.e. each work roll being supported by two rolls only arranged symmetrically with respect to the plane passing through the working rolls
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
- B21B2001/228—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length skin pass rolling or temper rolling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
- B21B3/02—Rolling special iron alloys, e.g. stainless steel
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、ステンレス鋼板を、冷間圧延およびスキンパ
ス圧延の双方を行う兼用圧延機によって、スキンパス圧
延する方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for skin-pass rolling a stainless steel plate using a dual-purpose rolling mill that performs both cold rolling and skin-pass rolling.
ステンレス鋼板のスキンパス圧延（調質圧延）は、降伏
現象を有するフェライト系鋼種の場合はストレッチャー
ストレインの防止を主目的とし、さらに表面光沢向上、
平坦度向上をも目的として行われ、降伏現象を有しない
オーステナイト系鋼種の場合は表面光沢向上、平坦度向
上を目的として行われる。圧延の圧下率は数チ以内の軽
圧下であシ１通常は、大径のワークロールを有する２重
式あるいは４重式のスキンノクス専用圧延機を使用して
圧延されている。The main purpose of skin pass rolling (temper rolling) of stainless steel sheets is to prevent stretcher strain in the case of ferritic steels that have a yielding phenomenon, and also to improve surface gloss.
It is also carried out to improve flatness, and in the case of austenitic steels that do not have yielding phenomena, it is carried out to improve surface gloss and flatness. The rolling reduction ratio is a light reduction of within a few inches.1 Usually, rolling is carried out using a double or quadruple type rolling mill exclusively for skinnox having large diameter work rolls.
しかし、生産量に対する圧延機の能力の問題あるいは板
幅の制約の問題などのために、冷間圧延機を使用してス
キンパス圧延を行うことが必要となる。このような兼用
圧延機について、ロールの駆動系統を切換えて冷間圧延
とスキンパス圧延を行うことが特開昭５７−１８４５０
３号公報によシ知られてお〕、また圧下系統の切換えが
特開昭５７−１７１５０５号公報などにょシ知られてい
る。しかし、冷間圧延とスキンパス圧延とは圧延油に要
求される特性が異なるため、兼用圧延機でスキンパス圧
延する場合の圧延油に問題が生じ、その対策については
知られていない。However, it is necessary to perform skin pass rolling using a cold rolling mill due to issues such as the capacity of the rolling mill relative to the production volume or the limitations of the strip width. Regarding such a dual-purpose rolling mill, Japanese Patent Laid-Open No. 57-18450 discloses that cold rolling and skin pass rolling can be performed by switching the drive system of the rolls.
It is known from Japanese Patent Application Laid-Open No. 171505/1983 that the pressure reduction system can be switched. However, since cold rolling and skin pass rolling require different properties of rolling oil, problems arise with rolling oil when performing skin pass rolling with a dual-purpose rolling mill, and no countermeasures are known.
圧延油を使用しないドライ・スキンパス圧延を行う場合
は、冷間圧延油の供給をしゃ断すればよいが、製品に生
じる表面疵の問題があって、スキン・（ス圧延前および
圧延中の材料表面、ロール表面の厳しい清浄化対策が必
要である。圧延油を使用スルウェット・スキンノース圧
延を行う場合は、このような清浄化対策は軽減されるが
、一定伸び率の軽圧下圧延を行う必要性から、冷間圧延
用の圧延油とは異って、摩擦係数を高め、かつ防錆効果
を高めるためにアミン塩を添加した水溶性圧延油が必要
となる（たとえば、第３版鉄鋼便覧１１１（１）。When performing dry skin pass rolling without using rolling oil, it is possible to cut off the supply of cold rolling oil, but there is a problem of surface flaws occurring on the product. , strict cleaning measures are required for the roll surface.If through-wet/skinless rolling is performed using rolling oil, such cleaning measures are alleviated, but it is necessary to perform light reduction rolling with a constant elongation rate. Unlike rolling oil for cold rolling, water-soluble rolling oil with added amine salts is required to increase the friction coefficient and enhance the rust prevention effect (for example, the 3rd edition of the Iron and Steel Handbook). 111(1).
Ｐ、６７２〜６７３９日本鉄鋼協会編、昭和５５年５月
１５日丸善発行）。P, 672-6739, edited by the Japan Iron and Steel Institute, published by Maruzen on May 15, 1980).
しかし、兼用圧延機でウェット・スキンノース圧延を行
う場合に、冷間圧延用の圧延油と異なる圧延油を使用す
ると、両者の混入がさけられず問題が生じる。すなわち
、水溶性の冷間圧延油にアミン塩６”−混入すると乳化
のバランスがくずれ、高圧下圧延に支瞳をきたし、スキ
ン・９ス用圧延油に冷間圧延用の圧延油が混入すると摩
擦係数が低下して、軽圧下圧延が不安定となる。However, if a rolling oil different from the rolling oil for cold rolling is used when wet skinnose rolling is performed in a dual-purpose rolling mill, problems arise because the mixture of the two cannot be avoided. In other words, when amine salt 6'' is mixed in water-soluble cold rolling oil, the balance of emulsification is disrupted, causing problems in high-pressure rolling, and when rolling oil for cold rolling is mixed into rolling oil for skins and 9-seats, The friction coefficient decreases and light reduction rolling becomes unstable.
本発明は、冷間圧延用の圧延機によってステンレス鋼板
をウェット・スキソノ４ス圧延するに際し、一定伸び率
の軽圧下圧延を安定して行い、かつスキン・やス圧延後
の防錆効果を保ち、さらに表面光沢のよい製品を得るこ
とを目的とする、〔問題点を解決するための手段〕
本発明は、鉱油系の冷間圧延用水溶性圧延油を使用する
圧延機によって、該圧延油のエマルジ。The present invention stably performs light reduction rolling with a constant elongation rate when wet rolling a stainless steel plate using a rolling mill for cold rolling, and maintains the rust prevention effect after skin and sheath rolling. [Means for Solving the Problems] The present invention aims to obtain a product with further good surface gloss.The present invention provides a rolling mill that uses mineral oil-based water-soluble rolling oil for cold rolling. emulsion.
ン濃度を４〜６ ｗｔ％に低下させてステンレス鋼板を
スキンノース圧延することを特徴とする。The method is characterized in that the stainless steel sheet is skinnorth rolled with a reduced concentration of carbon to 4 to 6 wt%.
圧延機としては、前記特開昭５７−１８４５０３号公報
等により知られているような兼用圧延機、すなわち冷間
圧延時には小径ワークロールを有する通常の２０段ゼン
ジミア圧延機であ）、スキンノース圧延時にはロールを
組替えて大径ワークロールを有する１４段圧延機とする
ものが望ましい。しかし、普通鋼ス） ＩＪツブの冷間
圧延に一般に使用されているタンデム４重式圧延機を用
いることもできる。この場合はワークロールを大径化し
なくてもよい。圧延油は、スピンドル油、マシン油など
を基油とし乳化剤などを添加した鉱油系原液の水溶液（
エマルジョン）を用いる。冷間圧延時には、エマルジョ
ン濃度（原液の水溶液に対するｗｔ、％） が通常７
〜８％程度であるが、この濃度を４〜６チに低下させて
スキンパス圧延を行う。The rolling mill is a dual-purpose rolling mill as known from the above-mentioned Japanese Patent Application Laid-Open No. 57-184503 (i.e., a normal 20-high Sendzimir rolling mill with small diameter work rolls during cold rolling), a skinnorth rolling mill, etc. Sometimes it is desirable to rearrange the rolls to create a 14-high rolling mill with large diameter work rolls. However, it is also possible to use a tandem quadruple rolling mill that is generally used for cold rolling of ordinary steel (IJ) tubes. In this case, it is not necessary to increase the diameter of the work roll. Rolling oil is a mineral oil-based aqueous solution (based on spindle oil, machine oil, etc.) and an emulsifier added.
Emulsion) is used. During cold rolling, the emulsion concentration (wt, % relative to the raw aqueous solution) is usually 7.
~8%, but skin pass rolling is performed with this concentration reduced to 4~6%.
圧延油の原液の濃度を変えるには、第１図に示すように
ミキシングタンク１で圧延油濃度が４〜６チになるよう
に濃度調整を行い、ブレミキシングタンク２（通常は圧
延油を入れていない）を通し、切替パルプ３を開、切替
バルブ９を閉にして供給配管４を通して専用ノズル５に
よシワ−クロール１３０入側からロールバイトに供給す
る。冷間圧延用の圧延油の補給は、ブレミキシングタン
ク２で濃度調整を行い、切替バルブ３を閉、切替パルプ
９を開にして配管８を通し、クリーンタンク７に供給す
る。またスキンノース圧延に使用された圧延油はダーテ
ィタンク６に回収する。また、圧延油の供給は第２図、
第３図忙示すように専用ノズル１２によシワ−クロール
１１の入側から均一にロールバイトに供給する。To change the concentration of the rolling oil stock solution, as shown in Figure 1, adjust the concentration so that the rolling oil concentration is 4 to 6 inches in mixing tank 1, and then move the mixing tank 2 (usually filled with rolling oil). The switching pulp 3 is opened, the switching valve 9 is closed, and the pulp is supplied through the supply pipe 4 to the dedicated nozzle 5 from the entrance side of the wrinkled roll 130 to the roll bite. To replenish the rolling oil for cold rolling, the concentration is adjusted in the bremixing tank 2, the switching valve 3 is closed, the switching pulp 9 is opened, and the oil is supplied to the clean tank 7 through the piping 8. Further, the rolling oil used for skin north rolling is collected in the dirty tank 6. In addition, the supply of rolling oil is shown in Figure 2.
As shown in FIG. 3, a special nozzle 12 is used to uniformly supply the wrinkled roll 11 from the entrance side to the roll bite.
冷間圧延の際には、鉱油系水溶性圧延油のエマルジョン
濃度を７〜８％としているが、この濃度でスキンノース
圧延を行うと、スキンパス圧延後の製品に必要とする表
面光沢が得られず、光沢ムラが発生する。また、潤滑が
良好すぎてロールバイト間の摩擦係数が低くなシ、圧延
時の材料の降伏応力の変動等の外乱によシ圧延が不安定
になり。During cold rolling, the emulsion concentration of mineral oil-based water-soluble rolling oil is set at 7 to 8%, but if skin north rolling is performed at this concentration, the surface gloss required for the product after skin pass rolling cannot be obtained. However, uneven gloss occurs. In addition, the lubrication is too good and the coefficient of friction between the roll bits is low, and rolling becomes unstable due to external disturbances such as fluctuations in the yield stress of the material during rolling.
圧下率が急変する現象（ジャンピング現象）が発生しや
すくなる。A phenomenon in which the rolling reduction ratio changes suddenly (jumping phenomenon) is more likely to occur.
エマルジョン濃度が６チ以下では、製品の表面光沢も良
好で光沢ムラがなく、かつジャンピング現象もなく一定
伸び率の軽圧下圧延が安定して行、ｌ。しかし、エマル
ジョン濃度が４チ未満になるとスキンパス圧延後の工程
において、ステンレス鋼板表面が発錆するおそれがある
。When the emulsion concentration is 6 or less, the surface gloss of the product is good, there is no uneven gloss, and there is no jumping phenomenon, and light reduction rolling with a constant elongation rate can be stably performed. However, if the emulsion concentration is less than 4%, there is a risk that the surface of the stainless steel sheet will rust in the process after skin pass rolling.
２０段ゼンジミア圧延機のワークロール、第一中間ロー
ルおよび第二中間ロールのアイドラーロールを取除いて
大径ワークロールを組込み１４段圧延機として（第１図
中の１０に相当） 、８０８３０４ステンレス鋼の２．
０ ｍ厚の冷延焼鈍板をスキンパス圧延した。圧下率の
目標は０．５％とし、１パス圧延した。エマルジョン濃
度を変えたときの圧延状況、表面光沢を表１に示す。The work roll of a 20-high Sendzimir rolling mill, the first intermediate roll, and the idler roll of the second intermediate roll are removed and a large-diameter work roll is installed to create a 14-high rolling mill (corresponding to 10 in Figure 1), 808304 stainless steel. 2.
A cold-rolled annealed plate with a thickness of 0 m was skin-pass rolled. The target rolling reduction was 0.5%, and one pass rolling was performed. Table 1 shows the rolling conditions and surface gloss when the emulsion concentration was changed.
本発明によれば、ステンレス鋼板、２Ｂ仕上材の製造に
おいて、スキンパス圧延を冷間圧延機によりて行うこと
ができるので、スキンパス圧延機の能力あるいは板幅の
制約などによってスキンパス圧延機を使用できない場合
などにおいて好都合である。さらに本発明におけるスキ
ンノぐス圧延用の圧延油は冷間圧延用の圧延油の原液を
用いるので、それぞれの専用圧延油を用いる場合のよう
に切換時における圧延機の洗浄などが不要であるととも
に両圧延油の混合による劣化の問題が解消される。According to the present invention, in the production of stainless steel sheets and 2B finished materials, skin pass rolling can be performed using a cold rolling mill, so when a skin pass rolling mill cannot be used due to the capacity of the skin pass rolling mill or constraints on the strip width, etc. It is convenient in such situations. Furthermore, since the rolling oil for skin-goss rolling in the present invention uses the undiluted rolling oil for cold rolling, there is no need to clean the rolling mill at the time of changeover, unlike when using dedicated rolling oils for each type of rolling oil. The problem of deterioration caused by mixing both rolling oils is resolved.
第１図は冷間圧延機におけるスキンパス圧延用および冷
間圧延用の圧延油の経路を示す図、第２図はスキンパス
圧延用の圧延油をワークロールに供給する状態を示す側
面図、第３図は同平面図である。
第１図
第２図Fig. 1 is a diagram showing the route of rolling oil for skin pass rolling and cold rolling in a cold rolling mill, Fig. 2 is a side view showing the state in which rolling oil for skin pass rolling is supplied to the work rolls, and Fig. 3 The figure is a plan view of the same. Figure 1 Figure 2
Claims (1)
によって、該圧延油のエマルジョン濃度を４〜６ｗｔ％
に低下させてステンレス鋼板をスキンパス圧延すること
を特徴とするステンレス鋼板のスキンパス圧延方法。A cold rolling mill that uses mineral oil-based water-soluble rolling oil for cold rolling reduces the emulsion concentration of the rolling oil to 4 to 6 wt%.
1. A method for skin pass rolling a stainless steel plate, which comprises skin pass rolling a stainless steel plate by rolling the stainless steel plate in a skin pass manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20799884A JPS6186004A (en) | 1984-10-05 | 1984-10-05 | Skinpass rolling method of stainless steel sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20799884A JPS6186004A (en) | 1984-10-05 | 1984-10-05 | Skinpass rolling method of stainless steel sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6186004A true JPS6186004A (en) | 1986-05-01 |
Family
ID=16548980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20799884A Pending JPS6186004A (en) | 1984-10-05 | 1984-10-05 | Skinpass rolling method of stainless steel sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6186004A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003080301A (en) * | 2001-09-11 | 2003-03-18 | Nippon Steel Corp | Equipment and method for continuously annealing and pickling stainless steel plate |
| CN104438378A (en) * | 2014-10-30 | 2015-03-25 | 重庆钢铁(集团)有限责任公司 | Method for recycling waste oil at discharging end of cold pilger mill |
| EP4032627A1 (en) * | 2021-01-21 | 2022-07-27 | SMS Group GmbH | Device and method for cold rolling, in particular finishing racks, of a strip-shaped rolled product |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5641003A (en) * | 1979-09-11 | 1981-04-17 | Furukawa Kinzoku Kogyo Kk | Skin-pass rolling method for metallic bar |
| JPS5910412A (en) * | 1982-07-09 | 1984-01-19 | Nippon Kokan Kk <Nkk> | Method for cold rolling |
-
1984
- 1984-10-05 JP JP20799884A patent/JPS6186004A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5641003A (en) * | 1979-09-11 | 1981-04-17 | Furukawa Kinzoku Kogyo Kk | Skin-pass rolling method for metallic bar |
| JPS5910412A (en) * | 1982-07-09 | 1984-01-19 | Nippon Kokan Kk <Nkk> | Method for cold rolling |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003080301A (en) * | 2001-09-11 | 2003-03-18 | Nippon Steel Corp | Equipment and method for continuously annealing and pickling stainless steel plate |
| CN104438378A (en) * | 2014-10-30 | 2015-03-25 | 重庆钢铁(集团)有限责任公司 | Method for recycling waste oil at discharging end of cold pilger mill |
| EP4032627A1 (en) * | 2021-01-21 | 2022-07-27 | SMS Group GmbH | Device and method for cold rolling, in particular finishing racks, of a strip-shaped rolled product |
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