JPH0250810B2 - - Google Patents

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Publication number
JPH0250810B2
JPH0250810B2 JP59169212A JP16921284A JPH0250810B2 JP H0250810 B2 JPH0250810 B2 JP H0250810B2 JP 59169212 A JP59169212 A JP 59169212A JP 16921284 A JP16921284 A JP 16921284A JP H0250810 B2 JPH0250810 B2 JP H0250810B2
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JP
Japan
Prior art keywords
pickling
hot
hno
stainless steel
concentration
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
JP59169212A
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Japanese (ja)
Other versions
JPS6149706A (en
Inventor
Masanori Ueda
Masamitsu Tsuchinaga
Isao Ito
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.)
Nippon Steel Corp
Original Assignee
Nippon Steel Corp
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Filing date
Publication date
Application filed by Nippon Steel Corp filed Critical Nippon Steel Corp
Priority to JP16921284A priority Critical patent/JPS6149706A/en
Publication of JPS6149706A publication Critical patent/JPS6149706A/en
Publication of JPH0250810B2 publication Critical patent/JPH0250810B2/ja
Granted legal-status Critical Current

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Classifications

    • 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
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/002—Heat treatment of ferrous alloys containing Cr
    • 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 of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • 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
    • C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
    • C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
    • C23G1/08—Iron or steel
    • C23G1/085—Iron or steel solutions containing HNO3
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
    • C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
    • C23G1/08—Iron or steel
    • C23G1/086—Iron or steel solutions containing HF
    • 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
    • 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
    • B21B45/04—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 de-scaling, e.g. by brushing
    • B21B45/06—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 de-scaling, e.g. by brushing of strip 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
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/001—Austenite

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Metallurgy (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Metal Rolling (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)

Description

【発明の詳細な説明】[Detailed description of the invention]

（産業上の利用分野） 本発明は18Cr−8Niステンレス鋼を代表とする
オーステナイト系ステンレス鋼（以下18Cr−8Ni
型オーステナイト系ステンレス鋼という）薄板の
製造方法に関するものであり、特に本発明は上記
ステンレス鋼薄板の製造にあたり、熱延板焼鈍の
省略、更には冷間圧延前の熱延板表面研削工程省
略をねらいにした場合の高速酸洗法に関するもの
である。 （従来の技術） 18Cr−8Ni型オーステナイト系ステンレス鋼薄
板は、従来は熱延板焼鈍を行なつて製造されて来
たが、近年熱延板焼鈍の省略についても技術的な
可能性が明らかになりつつある（特公昭57−
38654号公報、特公昭58−30373号公報）。 こうして熱延板焼鈍工程が材質上不要になる
と、従来の熱延板焼鈍−酸洗という、いわゆる
HAラインにおける生産性はデスケーリング処理
速度で制約されるようになり、ステンレス鋼熱延
板の高速酸洗法が極めて重要な課題となる。
18Cr−8Ni型オーステナイト系ステンレス鋼の熱
延板焼鈍省略にともなう酸洗に関しては、特公昭
58−56013号公報に示されており、熱延後1000℃
以下の低温熱処理を行うか、熱処理を廃した鋼板
の酸洗において、塩酸単味の酸洗浴、要すれば引
続き硝酸浴中で酸洗をすることが、硝弗酸酸洗よ
りもすぐれていること、焼鈍を省略すると脱Cr
層が生ぜず、HNO3−HFでは酸洗スピードが劣
り、粒界腐食を生じ表面色調が悪化すること、こ
れに対してHClの酸洗では粒界腐食が生ぜず、酸
洗スピードもすぐれていることが述べられてい
る。しかしHClによる酸洗の結果も酸洗時間が１
〜２分程度と長く、必ずしも十分満足すべき高速
酸洗法とはいえない。 （発明が解決しようとする問題点） 本発明は熱延板焼鈍を省略し、かつ酸洗時間を
短縮するとともに粒界腐食を生じさせない酸洗法
を可能ならしめるもので、これにより生産性の高
い18Cr−8Ni型オーステナイト系ステンレス鋼薄
板の製造方法を提供することを目的とするもので
ある。 （問題点を解決するための手段） 本発明者等は、18Cr−8Ni型オーステナイト系
ステンレス鋼において熱延板焼鈍を省略すると酸
洗前のスケール厚みが焼鈍を施したものに比較し
て1/2近くになる事実から、従来法にもとづく高
速酸洗では酸洗が困難になる理由が酸洗初期の溶
解反応の開始時期に関連しているものと考えた。
そこで通常通りメカニカルデスケーリングした鋼
板の硝弗酸中での酸洗開始について研究した結
果、鋼板表面温度の影響を大きいことが判明し
た。すなわち、50℃程度の硝弗酸中での酸洗実験
において、熱延板焼鈍省略した鋼板を予熱しない
で浸漬した場合20秒間は反応が開始しないで、そ
の後水素を発生して急速に酸洗が進み70秒で終了
した。一方鋼板表面を70℃に予熱して酸洗液に浸
漬すると、浸漬直後に酸洗が開始し、30秒で完了
した。こうして特に浸漬時間が１分以下の高速酸
洗を目標とする場合において、鋼板表面を予熱す
るとその効果が顕著に現われ、酸洗時間を大幅に
短縮することができる。鋼板表面の予熱効果は予
熱温度が40℃以上で効果が大きく、高温程有効で
あるが、150℃を超えると鋼板表面の温度分布が
不均一となり、又作用効果が飽和する。もちろん
酸洗が浸漬の場合にかぎらずスプレー酸洗におい
ても鋼板表面予熱の作用効果はより顕著で大幅な
酸洗時間の短縮が達成された。しかも鋼板の予熱
で一旦反応が始まれば、スケール厚みが薄い焼鈍
省略材では極めて高速の酸洗が可能となることが
判明した。 さらに本発明者らは熱延板焼鈍を省略した
18Cr−8Ni型オーステナイト系ステンレス鋼の熱
延板を予熱した場合の高速酸洗液の液組成につい
て検討した結果、次の事実が明らかにされた。鋼
板を予熱した場合にはHNO3−HF液中でも酸洗
が極めてよく進行し、熱延板焼鈍がある場合に比
較してHNO3濃度が20〜200ｇ／の範囲と低い
条件で有効で、HFが15〜100ｇ／が有効であ
る。こうしてHNO3を低くすること並びに鋼板予
熱によつて溶解反応が加速される結果、酸洗後表
面の粒界腐食は認められない。又HNO3を20〜
200ｇ／として、HFの代わりにHClを20〜200
ｇ／と第２鉄塩としてFe（NO3）3，FeCl3，Fe2
（SO4）3を30〜250ｇ／共存させてもよい。こう
して鋼板表面を予熱するとともにHNO3濃度を押
え、活性な酸（HFやHCl等）と共存する条件で
はデスケール反応が急速に進み、酸洗後にも粒界
腐食がなく、平滑な酸洗面が得られる。特に熱延
の巻取温度を650℃以下にした場合には粒界腐食
の防止には一層効果がある。HNO3の濃度が200
ｇ／を超えると焼鈍省略材では酸洗までの時間
がかえつて長くなり、粒界腐食を助長する。
HNO3が20ｇ／未満では酸洗速度が小さい。
HFは焼鈍省略材での高速酸洗には有効で、15
ｇ／以上で効果を発揮するが100ｇ／を超え
ると効果が飽和する。又HNO320〜200ｇ／に
共存するHClが20ｇ／未満では高速酸洗には不
足で、高濃度程高酸洗されるが、200ｇ／を超
えると過酸洗となる。HNO3−HClに第２鉄塩が
共存すると焼鈍省略材での高速酸洗に有効で粒界
腐食が生ぜず、かつ酸洗液の寿命が長くなる。第
２鉄塩が30ｇ／未満では効果が不足で、250
ｇ／を超えると作用効果が飽和する。なお、酸
洗温度は通常の温度でよく、90℃以下とする。 これらの高速酸洗法においてもメカニカルデス
ケーリングの作用は重要で、従来から使用されて
いるシヨツトブラスト、黒皮冷延法、砂鉄粒を含
有した高圧水吹きつけ法等は有効であり、特にス
ケールの厚みの薄い熱延板焼鈍省略材においては
従来よりも軽度の適用で有効である。 （実施例） 本発明の実施例を次に説明する。 通常の方法で熱間圧延し、590℃で巻取つた
18Cr−8Ni型オーステナイト系ステンレス鋼のホ
ツトコイルを焼鈍を省略し、通常条件でシヨツト
ブラストあるいは砂鉄粒を含んだ高圧水吹きつけ
によりメカニカルデスケーリングを実施した。次
いで酸洗ラインで酸洗槽を使用し、温水あるいは
中性塩を含有した水溶液を昇温して第１表の通り
鋼板表面温度を予熱した後、HNO3−HFのスプ
レー酸洗及びHNO3−HCl−Fe（NO3）3の浸漬酸
洗及びHNO3−HCl−FeCl3のスプレー酸洗を実
施し、酸洗完了までの時間を測定し、更に酸洗後
鋼板の表面の粒界腐食を調査した。比較法として
は予熱を省略して酸洗を実施した結果を示してい
る。 こうして、予熱のない場合と比較して半分の時
間で、かつ30秒以内で酸洗が完了し、しかも粒界
腐食が発生しないことが判明し、本発明の高速酸
洗法が確認された。 (Industrial Application Field) The present invention applies to austenitic stainless steel (hereinafter referred to as 18Cr-8Ni stainless steel), typified by 18Cr-8Ni stainless steel.
The present invention relates to a method for manufacturing a thin plate (referred to as a type austenitic stainless steel), and in particular, the present invention, in manufacturing the above-mentioned stainless steel thin plate, eliminates hot-rolled plate annealing and further omits the step of hot-rolled plate surface grinding before cold rolling. This article concerns a high-speed pickling method for targeted cases. (Prior technology) 18Cr-8Ni type austenitic stainless steel thin sheets have traditionally been manufactured by hot-rolled sheet annealing, but in recent years the technical possibility of omitting hot-rolled sheet annealing has become clear. It is becoming (Tokuko Sho 57-
38654, Special Publication No. 58-30373). In this way, when the hot-rolled sheet annealing process became unnecessary due to the material, the conventional hot-rolled sheet annealing-pickling process, so-called
Productivity in HA lines is now limited by descaling processing speed, and high-speed pickling methods for hot-rolled stainless steel sheets have become an extremely important issue.
Regarding pickling of 18Cr-8Ni type austenitic stainless steel due to the omission of hot-rolled sheet annealing,
58-56013, 1000℃ after hot rolling
When performing the following low-temperature heat treatment or pickling steel sheets that have no longer been heat treated, it is better to pickle in a simple hydrochloric acid pickling bath, or if necessary, to continue pickling in a nitric acid bath than nitric-fluoric acid pickling. In other words, if annealing is omitted, Cr-free
HNO 3 -HF does not form a layer and the pickling speed is poor, causing intergranular corrosion and deteriorating the surface color. On the other hand, HCl pickling does not cause intergranular corrosion and has an excellent pickling speed. It is stated that there are. However, the result of pickling with HCl also shows that the pickling time is 1.
The pickling process takes about 2 minutes and is not necessarily a fully satisfactory high-speed pickling method. (Problems to be Solved by the Invention) The present invention enables a pickling method that omits hot-rolled sheet annealing, shortens the pickling time, and does not cause intergranular corrosion, thereby increasing productivity. The object of the present invention is to provide a method for producing a high-quality 18Cr-8Ni type austenitic stainless steel thin plate. (Means for Solving the Problems) The present inventors have discovered that when hot-rolled sheet annealing is omitted in 18Cr-8Ni type austenitic stainless steel, the scale thickness before pickling is 1/1 compared to that of annealed steel. Based on the fact that the value is close to 2, it is thought that the reason why pickling is difficult in high-speed pickling based on the conventional method is related to the start time of the dissolution reaction in the early stage of pickling.
Therefore, as a result of researching the initiation of pickling in nitric-fluoric acid for steel plates that have been mechanically descaled as usual, it was found that the steel plate surface temperature has a large effect. In other words, in a pickling experiment in nitric-fluoric acid at about 50°C, when a hot-rolled steel plate that had not been annealed was immersed without preheating, the reaction did not start for 20 seconds, and then hydrogen was generated and the pickling process was rapid. It progressed and finished in 70 seconds. On the other hand, when the steel plate surface was preheated to 70°C and immersed in a pickling solution, pickling started immediately after immersion and was completed in 30 seconds. In this way, especially when the target is high-speed pickling with a dipping time of 1 minute or less, the effect of preheating the surface of the steel plate becomes noticeable and the pickling time can be significantly shortened. The effect of preheating the surface of the steel plate is greater when the preheating temperature is 40°C or higher, and the higher the temperature, the more effective it is, but if it exceeds 150°C, the temperature distribution on the surface of the steel plate becomes uneven and the effect is saturated. Of course, the effect of preheating the steel sheet surface is more pronounced not only in the case of immersion pickling but also in spray pickling, and a significant shortening of the pickling time was achieved. Furthermore, it has been found that once the reaction starts by preheating the steel plate, extremely high-speed pickling is possible with the annealed material with a thin scale thickness. Furthermore, the inventors omitted hot-rolled sheet annealing.
As a result of studying the composition of the high-speed pickling solution when hot-rolled sheets of 18Cr-8Ni type austenitic stainless steel are preheated, the following facts were clarified. When the steel sheet is preheated, pickling progresses extremely well even in the HNO 3 -HF solution, and compared to the case of hot-rolled sheet annealing, it is effective under conditions where the HNO 3 concentration is in the range of 20 to 200 g / HF. is effective at 15 to 100g/. As a result of lowering HNO 3 and accelerating the dissolution reaction by preheating the steel plate, no intergranular corrosion was observed on the surface after pickling. Also HNO 3 from 20~
200g/20~200 HCl instead of HF
g/ and as ferric salts Fe(NO 3 ) 3 , FeCl 3 , Fe 2
(SO 4 ) 3 may be present in an amount of 30 to 250 g. In this way, the steel sheet surface is preheated and the HNO 3 concentration is suppressed, and under the conditions of coexistence with active acids (HF, HCl, etc.), the descaling reaction proceeds rapidly, and even after pickling, there is no intergranular corrosion and a smooth pickled surface is obtained. It will be done. In particular, when the hot-rolling temperature is set to 650°C or lower, intergranular corrosion is more effectively prevented. The concentration of HNO3 is 200
If it exceeds g/, the time until pickling becomes longer in the case of the annealed material, which promotes intergranular corrosion.
If HNO 3 is less than 20 g/h, the pickling rate is low.
HF is effective for high-speed pickling of materials without annealing, and 15
It is effective when it exceeds 100 g/g, but the effect becomes saturated when it exceeds 100 g/g/g. Also, if the amount of HCl coexisting with 20 to 200 g of HNO 3 is less than 20 g, it is insufficient for high-speed pickling, and the higher the concentration, the more highly pickled the material is, but if it exceeds 200 g, over-pickling occurs. When a ferric salt coexists with HNO 3 -HCl, it is effective for high-speed pickling of materials that are not annealed, grain boundary corrosion does not occur, and the life of the pickling solution is extended. If the ferric salt is less than 30g, the effect is insufficient, and 250
If it exceeds g/, the effect will be saturated. Note that the pickling temperature may be a normal temperature, and should be 90°C or lower. Mechanical descaling is also important in these high-speed pickling methods, and conventionally used methods such as shot blasting, black skin cold rolling, and high-pressure water spraying containing iron sand grains are effective, especially For hot-rolled sheets with thin scale thickness and omitted annealing, it is effective when applied in a lighter manner than conventional methods. (Example) An example of the present invention will be described below. Hot rolled in the usual way and rolled at 590℃
A hot coil of 18Cr-8Ni type austenitic stainless steel was mechanically descaled by shot blasting or high-pressure water spraying containing iron sand particles under normal conditions without annealing. Next, a pickling tank is used in the pickling line, and hot water or an aqueous solution containing a neutral salt is heated to preheat the surface temperature of the steel plate as shown in Table 1, followed by spray pickling with HNO 3 -HF and HNO 3 -HCl-Fe(NO 3 ) 3 immersion pickling and HNO 3 -HCl-FeCl 3 spray pickling were carried out, the time to completion of pickling was measured, and intergranular corrosion on the surface of the steel plate after pickling was measured. investigated. As a comparative method, the results are shown in which preheating was omitted and pickling was performed. In this way, it was found that pickling was completed in half the time compared to the case without preheating, and within 30 seconds, and intergranular corrosion did not occur, confirming the high-speed pickling method of the present invention.

【表】 （発明の効果） 本発明はオーステナイト系ステンレス鋼薄板を
製造するに際し、熱延板焼鈍省略工程で粒界腐食
のない高速酸洗処理を可能ならしめたもので、生
産性が高く、かつすぐれた製品を提供できるの
で、その工業的効果は甚大である。[Table] (Effects of the invention) The present invention enables high-speed pickling treatment without intergranular corrosion in the production of austenitic stainless steel thin plates by omitting hot-rolled plate annealing, resulting in high productivity. Since it is possible to provide excellent products, its industrial effects are enormous.

Claims (1)

【特許請求の範囲】[Claims] １ 18Cr−8Ni型オーステナイト系ステンレス鋼
スラブを熱間圧延し、650℃以下で巻取つた後、
得られた熱延板に焼鈍することなく、通常のメカ
ニカルデスケーリングを施し、次いで該熱延板の
表面温度を40〜150℃に予熱した後、濃度20〜200
ｇ／のHNO3と濃度15〜100ｇ／のHFの混合
液、或いは濃度20〜200ｇ／のHNO3、濃度20
〜200ｇ／のHCl及び30〜250ｇ／の第２鉄塩
の混合液でスプレー酸洗するか、或いは浸漬酸洗
した後、冷間圧延することを特徴とするオーステ
ナイト系ステンレス鋼薄板の製造方法。1 After hot rolling a 18Cr-8Ni type austenitic stainless steel slab and winding it at 650℃ or less,
The obtained hot-rolled sheet is subjected to ordinary mechanical descaling without annealing, and then the surface temperature of the hot-rolled sheet is preheated to 40 to 150°C, and then the concentration is 20 to 200°C.
A mixture of HNO 3 at a concentration of 15 to 100 g/g/HF, or HNO 3 at a concentration of 20 to 200 g/, a concentration of 20
A method for producing an austenitic stainless steel thin plate, which comprises spray pickling or immersion pickling with a mixed solution of ~200 g/HCl and 30~250 g/ferric salt, followed by cold rolling.
JP16921284A 1984-08-15 1984-08-15 Manufacture of thin austenite stainless-steel sheet Granted JPS6149706A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16921284A JPS6149706A (en) 1984-08-15 1984-08-15 Manufacture of thin austenite stainless-steel sheet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16921284A JPS6149706A (en) 1984-08-15 1984-08-15 Manufacture of thin austenite stainless-steel sheet

Publications (2)

Publication Number Publication Date
JPS6149706A JPS6149706A (en) 1986-03-11
JPH0250810B2 true JPH0250810B2 (en) 1990-11-05

Family

ID=15882279

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16921284A Granted JPS6149706A (en) 1984-08-15 1984-08-15 Manufacture of thin austenite stainless-steel sheet

Country Status (1)

Country Link
JP (1) JPS6149706A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62253732A (en) * 1986-04-28 1987-11-05 Nippon Steel Corp Production of austenitic stainless steel strip and sheet having excellent polishability
JPH05108473A (en) * 1991-03-20 1993-04-30 Hitachi Ltd Data processing system
DE19532278B4 (en) * 1995-09-01 2006-07-27 Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh Method for producing a cold-rolled strip in one pass
EP1381714B8 (en) * 2001-04-09 2007-01-03 AK Steel Properties, Inc. Hydrogen peroxide pickling scheme for stainless steel grades
JP3992977B2 (en) * 2001-12-25 2007-10-17 株式会社パーカーコーポレーション Surface finishing method after descaling of stainless steel
KR100851687B1 (en) * 2004-03-18 2008-08-11 제이에프이 스틸 가부시키가이샤 Metallic material for the conducting member, fuel cell separator using the same, and fuel cell
CN111551054B (en) * 2019-02-12 2022-01-14 宝山钢铁股份有限公司 Temperature control method of BMD (BMD) filtering circulating water based on plate heat exchanger

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53108830A (en) * 1977-03-07 1978-09-22 Kawasaki Steel Co Method of removing scale of hot rolling stainless steel plate
JPS6032117Y2 (en) * 1981-07-06 1985-09-25 新日本製鐵株式会社 Continuous spray pickling equipment for strips
JPS58107212A (en) * 1981-12-22 1983-06-25 Sumitomo Metal Ind Ltd Method for descaling steel sheet
JPS58110116A (en) * 1981-12-23 1983-06-30 Sumitomo Metal Ind Ltd Method for continous descaling of steel sheet

Also Published As

Publication number Publication date
JPS6149706A (en) 1986-03-11

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