JPH0364419A - Method for continuously annealing cold rolled stainless steel strip - Google Patents
Method for continuously annealing cold rolled stainless steel stripInfo
- Publication number
- JPH0364419A JPH0364419A JP19912189A JP19912189A JPH0364419A JP H0364419 A JPH0364419 A JP H0364419A JP 19912189 A JP19912189 A JP 19912189A JP 19912189 A JP19912189 A JP 19912189A JP H0364419 A JPH0364419 A JP H0364419A
- Authority
- JP
- Japan
- Prior art keywords
- stainless steel
- steel strip
- rolling
- continuous annealing
- cold rolled
- 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
- 229910001220 stainless steel Inorganic materials 0.000 title claims abstract description 32
- 239000010935 stainless steel Substances 0.000 title claims abstract description 32
- 238000000137 annealing Methods 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims description 9
- 238000005554 pickling Methods 0.000 claims abstract description 14
- 238000005238 degreasing Methods 0.000 claims abstract description 8
- 238000002203 pretreatment Methods 0.000 claims 2
- 238000005096 rolling process Methods 0.000 abstract description 8
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 abstract description 6
- 239000010731 rolling oil Substances 0.000 abstract description 6
- 229910000831 Steel Inorganic materials 0.000 abstract description 5
- 239000010959 steel Substances 0.000 abstract description 5
- 239000002245 particle Substances 0.000 abstract description 4
- 238000011282 treatment Methods 0.000 abstract description 4
- 238000005406 washing Methods 0.000 abstract description 4
- 238000005097 cold rolling Methods 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 3
- 238000004140 cleaning Methods 0.000 abstract description 2
- 239000007864 aqueous solution Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 4
- 239000000843 powder Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000010186 staining Methods 0.000 description 1
- 238000010301 surface-oxidation reaction Methods 0.000 description 1
Landscapes
- Heat Treatment Of Sheet Steel (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、ステンレス綱シ１）の製品品質を向上し、
且つ歩留まりを改善できる冷間圧延ステンレスｍ帯の連
続焼鈍方法に関する。[Detailed Description of the Invention] [Industrial Application Field] This invention improves the product quality of stainless steel steel (1),
The present invention also relates to a continuous annealing method for cold-rolled stainless steel m-strips that can improve yield.
一般に、ステンレス鋼帯の冷間圧延製品は、その表面性
状として鏡面に近い高光沢で且つキズのないものが要求
される。In general, cold-rolled stainless steel products are required to have a surface that is highly glossy, almost mirror-like, and free from scratches.
このような製品の通常の製造工程においては、冷間圧延
されたステンレス鋼帯をそのまま、第２図に示すような
連続焼鈍炉によって焼鈍を施す。In the normal manufacturing process for such products, a cold-rolled stainless steel strip is directly annealed in a continuous annealing furnace as shown in FIG.
同図において、ステンレス鋼帯５は焼鈍炉ｌに配設され
た入口ローラ２．出口ローラ３．炉内支持ローラ４ａ、
４ｂ等によってカテナリー状に支持されて炉内を走行す
る間に、炉側壁に設けられたバーナ６によって所定の焼
鈍温度にまで加熱される。ここで、ステンレス製品は前
述のごとく、キズの無い高度に均一な表面外観を要求さ
れるので、熱処理中において鋼帯にキズが発生しないよ
うに、前記炉内支持ローラ４ａ、４ｂはアスヘストで構
成されている。In the figure, a stainless steel strip 5 is connected to an inlet roller 2 disposed in an annealing furnace l. Exit roller 3. Furnace support roller 4a,
While being supported in a catenary-like manner by 4b and the like and running in the furnace, it is heated to a predetermined annealing temperature by a burner 6 provided on the side wall of the furnace. Here, as mentioned above, stainless steel products are required to have a highly uniform surface appearance without scratches, so the furnace support rollers 4a and 4b are made of ashest to prevent scratches from occurring on the steel strip during heat treatment. has been done.
ところで、冷間圧延されたままのステンレス鋼帯の表面
には、圧延油や圧延摩耗粉等が不均一に付着しており、
′このまま焼鈍すると表面酸化反応がこれらの付着状態
に対応して不均一に進行し、銅帯表面に光沢ムラなど模
様が生じる。By the way, rolling oil, rolling wear particles, etc. adhere unevenly to the surface of a stainless steel strip that has been cold rolled.
'If annealing is continued in this state, the surface oxidation reaction will proceed unevenly depending on the state of these attachments, resulting in patterns such as uneven gloss on the surface of the copper strip.
そこで、以上の問題点を解決する方法として、特開昭６
２−１７１３８号公報にその技術が開示されている。す
なわち、この方法は、冷間圧延後の圧延油や圧延摩耗粉
が不均一に付着したステンレス鋼板の表面に、さらに油
を均一に塗布してもともと付着していた圧延油や圧延摩
耗粉を表面上に均一に分散させるものである。Therefore, as a method to solve the above problems,
The technique is disclosed in Japanese Patent No. 2-17138. In other words, this method involves uniformly applying oil to the surface of a stainless steel plate to which rolling oil and rolling wear powder have been unevenly adhered after cold rolling, and removing the rolling oil and rolling wear powder that were originally attached to the surface. It is to be uniformly dispersed on the top.
しかし、本発明者らが、上記の方法により前処理された
ステンレス鋼帯を連続焼鈍したところ、たしかに光沢ム
ラは発生しないという効果は確認されたが、ステンレス
鋼帯の重要な表面品質に関わるキズの発生は、完全には
解消されないことが知見された。However, when the present inventors continuously annealed a stainless steel strip pretreated by the above method, it was confirmed that no uneven gloss occurred, but there were some scratches related to the important surface quality of the stainless steel strip. It was found that the occurrence of the disease was not completely resolved.
このキズは、本発明者らの実験的研究の結果、ステンレ
ス鋼帯の表面に付着した圧延摩耗粉が炉内支持ローラ４
ａ、４ｂの表面に取り込まれ、これらが核となってロー
ラ４ａ、４ｂの表面に酸化スケールが戒長し、これにス
テンレス鋼帯が高温状態で接触することにより発生する
ことが判った。As a result of the inventors' experimental research, this scratch is caused by rolling abrasion powder adhering to the surface of the stainless steel strip.
It was found that the oxidized scale was taken into the surfaces of the rollers 4a and 4b and formed a nucleus, which caused oxidized scale to grow on the surfaces of the rollers 4a and 4b, which was generated when the stainless steel strip came into contact with the oxidized scale at a high temperature.
この発明は、このような従来の問題点にかんがみてなさ
れたものであって、焼鈍の前処理として鋼帯の酸洗処理
を行うことによって、上記課題を解決することを目的と
している。The present invention has been made in view of these conventional problems, and aims to solve the above problems by performing pickling treatment on a steel strip as a pretreatment for annealing.
〔課題を解決するための手段］
この発明は、冷間圧延後のステンレス鋼帯を連続焼鈍炉
で焼鈍するに際し、焼鈍の前処理工程として酸洗を行う
冷間圧延ステンレス鋼帯の連続焼鈍方法としたもので、
さらに酸洗を行う前に脱脂処理を施すことが望ましい。[Means for Solving the Problems] The present invention provides a continuous annealing method for a cold rolled stainless steel strip in which pickling is performed as a pretreatment step for annealing when the cold rolled stainless steel strip is annealed in a continuous annealing furnace. That is,
Furthermore, it is desirable to perform degreasing treatment before acid washing.
この発明は、上記のような構成となっているので、冷間
圧延後のステンレス鋼帯は先ず酸洗されるために、表面
に付着していた圧延油や圧延摩耗粉等が除去されて清浄
な表面となることにより、焼鈍加熱間におけるキズの発
生が防止されるとともに光沢ムラの発生を防止すること
ができる。さらに酸洗処理を施す前に脱脂を行えば、酸
洗液の汚れや劣化を著しく低減できる。Since this invention has the above-mentioned configuration, the stainless steel strip after cold rolling is first pickled, so that the rolling oil and rolling wear particles adhering to the surface are removed and the stainless steel strip is cleaned. By forming a smooth surface, it is possible to prevent the occurrence of scratches during annealing and heating, and also to prevent the occurrence of uneven gloss. Furthermore, if degreasing is performed before pickling treatment, staining and deterioration of the pickling solution can be significantly reduced.
〔実施例］ 以下、本発明の構成を第１図を参照して説明する。〔Example] Hereinafter, the configuration of the present invention will be explained with reference to FIG.
焼鈍炉１は従来例である第２図で説明した焼鈍炉と同じ
ものであるが、本発明においてはこの焼鈍炉１の入側に
近接しても脱脂装置７、酸洗装置８が配設されている。The annealing furnace 1 is the same as the conventional annealing furnace explained in FIG. has been done.
このように構成された連続焼鈍炉において、ステンレス
鋼帯５は、先ず脱脂装置７において、その表面に不均一
に付着した圧延油を取り除かれる。In the continuous annealing furnace configured as described above, the stainless steel strip 5 is first subjected to a degreasing device 7 in which rolling oil that has non-uniformly adhered to the surface of the stainless steel strip 5 is removed.
次に酸洗装置８において表面に付着した圧延摩耗粉が除
去されて表面が清浄になる。Next, in the pickling device 8, the rolling wear particles adhering to the surface are removed and the surface becomes clean.
次に本発明の一実施例を説明する。Next, one embodiment of the present invention will be described.
焼鈍炉１は炉長４５ｍで、炉内にはアスヘストで構成さ
れた支持ローラ４ａ、４ｂが１５ｍピッチで設置されて
いる。The annealing furnace 1 has a length of 45 m, and support rollers 4a and 4b made of ashest are installed in the furnace at a pitch of 15 m.
脱脂装置７は、従来公知のごとく、電解洗浄タンク、水
洗タンク等から構成されている。また、酸洗装置８も従
来公知のごとく、酸洗タンク、水洗タンク等で構成され
ており、鋼帯５は５％濃度の塩酸に３秒間浸漬される。The degreasing device 7 is comprised of an electrolytic cleaning tank, a water washing tank, etc., as is conventionally known. Further, the pickling device 8 is also comprised of a pickling tank, a water washing tank, etc., as is conventionally known, and the steel strip 5 is immersed in 5% hydrochloric acid for 3 seconds.
以上に示した連続焼鈍炉で、板圧１ ｍｍの５ＵＳ３０
４ステンレス鋼帯を焼鈍した結果を、従来法によるもの
と比較して次の表１に示す。In the continuous annealing furnace shown above, 5US30 with a plate thickness of 1 mm
The results of annealing the No. 4 stainless steel strip are shown in Table 1 below in comparison with those obtained by the conventional method.
表１
この表から明らかなように、本発明によれば、光沢ムラ
などの外観不良や炉内で発生するキズなどの問題を解決
することができた。Table 1 As is clear from this table, according to the present invention, problems such as poor appearance such as uneven gloss and scratches occurring in the furnace could be solved.
なお、ステンレス鋼帯を脱脂せずに、そのまま酸洗した
後、連続焼鈍しても製品品質については同様の効果が得
られた。しかし、酸洗液（５％塩酸）の油による汚れや
劣化が激しく、新しい酸洗液の供給を多くする必要があ
るので、まず最初に脱脂処理するのが好ましい。Note that the same effect on product quality was obtained even when the stainless steel strip was pickled without degreasing and then continuously annealed. However, since the pickling solution (5% hydrochloric acid) is heavily contaminated and deteriorated by oil, and it is necessary to supply a large amount of new pickling solution, it is preferable to degrease the pickling solution first.
〔発明の効果〕
以上説明したように、本発明によれば以下のごとき効果
が得られた。すなわち、炉内でのキズ発生が無くなり、
光沢ムラなと表面外観の不良が発生せず、その結果、ス
テンレス鋼帯の製品品質が向Ｊ二し、歩留まりも著しく
改善できた。[Effects of the Invention] As explained above, according to the present invention, the following effects were obtained. In other words, there will be no scratches inside the furnace,
As a result, the product quality of the stainless steel strip was improved and the yield was significantly improved.
第１図は本発明に係る実施例の模式図、第２図は従来例
の焼鈍炉の概略断面図である。
１・・・・・・連続焼鈍炉、５・・・・・・ステンレス
鋼帯。FIG. 1 is a schematic diagram of an embodiment according to the present invention, and FIG. 2 is a schematic sectional view of a conventional annealing furnace. 1... Continuous annealing furnace, 5... Stainless steel strip.
Claims (2)
するに際し、焼鈍の前処理工程として酸洗を行うことを
特徴とする冷間圧延ステンレス鋼帯の連続焼鈍方法。(1) A continuous annealing method for a cold-rolled stainless steel strip, which comprises performing pickling as a pre-treatment step for annealing when the cold-rolled stainless steel strip is annealed in a continuous annealing furnace.
するに際し、焼鈍の前処理工程として脱脂を行った後に
酸洗を行うことを特徴とする冷間圧延ステンレス鋼帯の
連続焼鈍方法。(2) A continuous annealing method for a cold-rolled stainless steel strip, characterized in that when the cold-rolled stainless steel strip is annealed in a continuous annealing furnace, pickling is performed after degreasing as a pre-treatment step for annealing. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19912189A JPH0364419A (en) | 1989-07-31 | 1989-07-31 | Method for continuously annealing cold rolled stainless steel strip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19912189A JPH0364419A (en) | 1989-07-31 | 1989-07-31 | Method for continuously annealing cold rolled stainless steel strip |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0364419A true JPH0364419A (en) | 1991-03-19 |
Family
ID=16402490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19912189A Pending JPH0364419A (en) | 1989-07-31 | 1989-07-31 | Method for continuously annealing cold rolled stainless steel strip |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0364419A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006141423A (en) * | 2004-11-16 | 2006-06-08 | Rikuwa Seiko Kk | Curtain-retaining device |
| CN102489505A (en) * | 2011-12-13 | 2012-06-13 | 山西太钢不锈钢股份有限公司 | Cold-rolled steel strip and production method thereof, and anode plate material for electric dust removing device |
| CN106381379A (en) * | 2016-08-29 | 2017-02-08 | 首钢京唐钢铁联合有限责任公司 | Annealing furnace internal tension control method and control system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5818436A (en) * | 1981-07-23 | 1983-02-03 | 三菱レイヨン株式会社 | Partial torque yarn |
| JPS5946314A (en) * | 1982-08-10 | 1984-03-15 | イ−・ヴエ−・カ−・レ−グラ−・ウント・コンペンザト−レン・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング | Apparatus for connecting pipe part in movable manner in exhaust apparatus of automobile |
-
1989
- 1989-07-31 JP JP19912189A patent/JPH0364419A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5818436A (en) * | 1981-07-23 | 1983-02-03 | 三菱レイヨン株式会社 | Partial torque yarn |
| JPS5946314A (en) * | 1982-08-10 | 1984-03-15 | イ−・ヴエ−・カ−・レ−グラ−・ウント・コンペンザト−レン・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング | Apparatus for connecting pipe part in movable manner in exhaust apparatus of automobile |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006141423A (en) * | 2004-11-16 | 2006-06-08 | Rikuwa Seiko Kk | Curtain-retaining device |
| CN102489505A (en) * | 2011-12-13 | 2012-06-13 | 山西太钢不锈钢股份有限公司 | Cold-rolled steel strip and production method thereof, and anode plate material for electric dust removing device |
| CN106381379A (en) * | 2016-08-29 | 2017-02-08 | 首钢京唐钢铁联合有限责任公司 | Annealing furnace internal tension control method and control system |
| CN106381379B (en) * | 2016-08-29 | 2018-09-18 | 首钢京唐钢铁联合有限责任公司 | Annealing furnace internal tension control method and control system |
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