JPH0757362B2 - Manufacturing method of stainless pretreated steel strip for cold rolling - Google Patents
Manufacturing method of stainless pretreated steel strip for cold rollingInfo
- Publication number
- JPH0757362B2 JPH0757362B2 JP1281716A JP28171689A JPH0757362B2 JP H0757362 B2 JPH0757362 B2 JP H0757362B2 JP 1281716 A JP1281716 A JP 1281716A JP 28171689 A JP28171689 A JP 28171689A JP H0757362 B2 JPH0757362 B2 JP H0757362B2
- Authority
- JP
- Japan
- Prior art keywords
- steel strip
- rolling
- grinding
- cold rolling
- roughness
- 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 - Fee Related
Links
- 229910000831 Steel Inorganic materials 0.000 title claims description 36
- 239000010959 steel Substances 0.000 title claims description 36
- 238000005097 cold rolling Methods 0.000 title claims description 22
- 238000004519 manufacturing process Methods 0.000 title claims description 7
- 239000010935 stainless steel Substances 0.000 claims description 15
- 229910001220 stainless steel Inorganic materials 0.000 claims description 15
- 238000005554 pickling Methods 0.000 claims description 12
- 238000005098 hot rolling Methods 0.000 claims description 11
- 238000005096 rolling process Methods 0.000 claims description 11
- 239000006061 abrasive grain Substances 0.000 claims description 9
- 239000011347 resin Substances 0.000 claims description 6
- 229920005989 resin Polymers 0.000 claims description 6
- 238000000137 annealing Methods 0.000 description 10
- 230000003746 surface roughness Effects 0.000 description 10
- 238000000034 method Methods 0.000 description 9
- 239000010731 rolling oil Substances 0.000 description 6
- 230000007547 defect Effects 0.000 description 5
- 230000003628 erosive effect Effects 0.000 description 5
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 238000005422 blasting Methods 0.000 description 4
- 239000010960 cold rolled steel Substances 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000002203 pretreatment Methods 0.000 description 3
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 2
- LFYJSSARVMHQJB-QIXNEVBVSA-N bakuchiol Chemical compound CC(C)=CCC[C@@](C)(C=C)\C=C\C1=CC=C(O)C=C1 LFYJSSARVMHQJB-QIXNEVBVSA-N 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 229910017604 nitric acid Inorganic materials 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 229910000859 α-Fe Inorganic materials 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 229910001566 austenite Inorganic materials 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Classifications
-
- 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
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
- B21B27/06—Lubricating, cooling or heating rolls
- B21B27/10—Lubricating, cooling or heating rolls externally
-
- 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
Description
【発明の詳細な説明】 ［産業上の利用分野］ 本発明は、優れた表面光沢を有するステンレス冷延鋼帯
を、疵なく、かつ脱スケールを容易にして能率良く生産
し得る冷間圧延用ステンレス鋼帯の予備処理方法に関す
る。DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention is for cold rolling which enables efficient production of stainless cold-rolled steel strip having excellent surface gloss without any flaws and with ease of descaling. The present invention relates to a pretreatment method for stainless steel strip.
［従来の技術］ 従来、ステンレス冷延鋼帯は、熱延鋼帯を焼鈍し、レベ
ラー、ショットブラスト等の機械的脱スケール処理を施
した後、そのまま酸洗して大量の圧延油を供給しながら
冷間圧延した後、仕上焼鈍又は仕上光輝焼鈍を施し、仕
上調質圧延して製造していた。[Prior Art] Conventionally, cold-rolled stainless steel strip is annealed from a hot-rolled steel strip, subjected to mechanical descaling treatment such as leveler and shot blasting, and then pickled as it is to supply a large amount of rolling oil. However, after cold rolling, finish annealing or finish bright annealing was performed, and finish temper rolling was performed.
これら工程を経て製造されたステンレス冷延鋼帯は、製
造後の表面のまま使用されたり、又、バフ研磨を施した
後使用され、いずれの場合も優れた表面光沢を呈するこ
とが重要である。The cold-rolled stainless steel strip manufactured through these steps is used as it is after being manufactured, or is used after being subjected to buffing, and in any case, it is important to exhibit excellent surface gloss. .
そこで、従来、優れた表面光沢を得るため、特公昭57−
13362等に示される如く、冷間圧延時のワークロール粗
さを工夫する方法等の冷間圧延時の工夫がなされてい
た。然し、これら従来方法を用いても、冷間圧延前の鋼
帯表面の著しく大きい粗さ及び欠陥が冷間圧延後まで残
留する結果、表面光沢は満足できるものではなかった。Therefore, conventionally, in order to obtain an excellent surface gloss,
As shown in 13362 and the like, some ideas have been devised during cold rolling, such as a method for devising work roll roughness during cold rolling. However, even when these conventional methods are used, as a result of the extremely large roughness and defects of the surface of the steel strip before cold rolling remaining until after cold rolling, the surface gloss is not satisfactory.
又、熱延以前の上工程で疵が発生した場合、粗さの場合
と同様に冷間圧延後まで残留し、適正な製品とはならな
かった。このため、従来は砥石を付着させたベルトによ
り、別工程で疵研削を実施していたが、能率を著しく低
く、生産性を阻害する大きな問題であった。Further, when a flaw was generated in the upper step before hot rolling, it remained until after cold rolling as in the case of roughness, and it was not a proper product. For this reason, conventionally, flaw grinding was carried out in a separate process using a belt to which a grindstone was attached, but the efficiency was extremely low, and this was a major problem that hindered productivity.
更に、熱延後に焼鈍した鋼帯表面には酸化スケールが生
成し、これを能率良く除去する必要があるが、従来の酸
洗では完全に除去できない場合があり、再酸洗を実施す
る等の生産性を阻害する問題もあった。Furthermore, oxide scale is generated on the surface of the steel strip annealed after hot rolling, and it is necessary to remove it efficiently, but it may not be completely removed by conventional pickling, so re-pickling may be necessary. There was also a problem that hindered productivity.
［発明が解決しようとする課題］ 本発明は、従来からかかえていたステンレス冷延鋼帯製
品の表面光沢低下問題、及び、疵の除去や酸洗時の能率
低下問題を同時に解決することを目的とする。[Problems to be Solved by the Invention] An object of the present invention is to simultaneously solve the problems of surface gloss reduction of stainless cold-rolled steel strip products and the problems of efficiency reduction at the time of removing flaws and pickling, which have been conventionally encountered. And
［課題を解決するための手段］ 本発明は、前述の問題を解決し、優れた表面光沢を有す
るステンレス冷延鋼帯を製造するために能率良く予備処
理する方法を提供するものである。[Means for Solving the Problem] The present invention provides a method for solving the above-mentioned problems and efficiently performing a pretreatment for producing a stainless cold-rolled steel strip having excellent surface gloss.
請求項１に係る冷間圧延用ステンレス予備処理鋼帯の製
造方法は、熱間圧延終了後のステンレス鋼帯を焼鈍し、
そのまま、もしくは機械的脱スケール処理を施した後、
これに連続して、樹脂に砥粒を固着させた回転式研削具
により鋼帯表面を研削量10μｍ以上で研削し、かつ研削
後の鋼帯表面の粗さを平均粗さRa 1μｍ以下とするよう
にしたものである。A method of manufacturing a stainless steel pre-treated steel strip for cold rolling according to claim 1, wherein the stainless steel strip after hot rolling is annealed,
As it is, or after mechanical descaling treatment,
Continuing to this, the steel strip surface is ground with a grinding amount of 10 μm or more by a rotary grinder having abrasive grains fixed to a resin, and the roughness of the steel strip surface after grinding is set to an average roughness Ra of 1 μm or less. It was done like this.
請求項２に係る冷間圧延用ステンレス予備処理鋼帯の製
造方法は、熱間圧延終了後のステンレス鋼帯を焼鈍し、
そのまま、もしくは機械的脱スケール処理を施した後、
これに連続して、樹脂に砥粒を固着させた回転式研削具
により鋼帯表面を研削量10μｍ以上で研削し、研削後に
そのまま、又は、軽酸洗を施した後、無潤滑圧延、又
は、ワークロール表面に厚み１μｍ以下の油を付着させ
た圧延を施すようにしたものである。A method of manufacturing a stainless steel pre-treated steel strip for cold rolling according to claim 2, wherein the stainless steel strip after hot rolling is annealed,
As it is, or after mechanical descaling treatment,
Continuing to this, the steel strip surface is ground with a grinding amount of 10 μm or more by a rotary grinding tool in which abrasive grains are fixed to resin, and after grinding, as it is, or after light pickling, unlubricated rolling, or The work roll surface is subjected to rolling with oil having a thickness of 1 μm or less attached.
［作用］ 以下、本発明について詳細に説明する。[Operation] Hereinafter, the present invention will be described in detail.
従来、ステンレス冷延鋼帯の予備処理は、熱延鋼帯を焼
鈍し、ショットブラストによる機械的脱スケールを施
し、更に硫酸又は硝沸酸等の酸洗を施していた。これら
工程はSUS430等のフェライト系の場合、機械的脱スケー
ル及び酸洗を連続して実施し、SUS304等のオーステナイ
ト系の場合、焼鈍から酸洗まで連続して実施している。Conventionally, as a pretreatment of a cold rolled stainless steel strip, a hot rolled steel strip is annealed, mechanically descaled by shot blasting, and then pickled with sulfuric acid or nitric acid. In the case of ferrite type such as SUS430, mechanical descaling and pickling are continuously performed in these steps, and in the case of austenite type such as SUS304, annealing to pickling are continuously performed.
ところで、ステンレス冷延鋼帯の表面光沢を良好にする
には、その製品の表面粗さを左右する冷間圧延後の鋼帯
の表面粗さを低減すると良いことが知られていた。By the way, it has been known that in order to improve the surface gloss of a stainless cold-rolled steel strip, it is preferable to reduce the surface roughness of the steel strip after cold rolling, which influences the surface roughness of the product.
然しながら、本発明者らの検討において、この冷間圧延
後の鋼帯の表面粗さは、冷間圧延前の鋼帯、即ち、熱延
後に焼鈍酸洗した予備処理鋼帯の表面粗さが冷間圧延後
に残存するものであり、又、粗さだけでなく、予備処理
時に発生する粒界侵食等の欠陥も残存するものであるこ
とを見い出した。However, in the study of the present inventors, the surface roughness of the steel strip after cold rolling, the steel strip before cold rolling, that is, the surface roughness of the pretreated steel strip annealed and pickled after hot rolling. It was found that they remain after cold rolling, and that not only roughness but also defects such as grain boundary erosion that occur during pretreatment remain.
これらの粗さ及び欠陥が発生する原因は、ショットブラ
ストによる機械的脱スケール処理及び酸洗にある。The causes of these roughness and defects are mechanical descaling treatment by shot blasting and pickling.
即ち、最終仕上製品で平均粗さRa 0.1μｍ以下の表面粗
さを目標とするステンレス冷延鋼帯の製造において、上
記の予備処理後の鋼帯表面粗さは予備処理により最大粗
さRmax約20μｍもの著しく大きな粗さを付与されるた
め、この粗さの凹部が冷延後まで残留して冷延製品の表
面光沢を低下させる。That is, in the production of a cold-rolled stainless steel strip whose target finish is an average roughness Ra of 0.1 μm or less, the surface roughness of the steel strip after the above-mentioned pretreatment is about the maximum roughness Rmax of the pretreatment. Since a remarkably large roughness of 20 μm is imparted, the recesses of this roughness remain until after cold rolling, which lowers the surface gloss of the cold rolled product.
然しながら、本発明者らは、検討の結果、この粗さをRm
ax10μｍ以下にできれば、上述の表面光沢低下問題を著
しく軽減できることを見い出した。However, as a result of the study, the present inventors have determined that this roughness is Rm.
It has been found that if the ax is 10 μm or less, the above problem of lowering the surface gloss can be remarkably reduced.
又、一方、熱延及び焼鈍時の鋼帯表面は、粒界が優先的
に酸化されかつ鋼帯表面上に酸化スケールが生成すると
ともに、粒界に沿ってCr欠乏層が生成し、そのまま酸洗
すると酸化スケールが除去されつつ粒界侵食溝が生成し
てしまう。この粒界侵食溝の深さは約10μｍであり、こ
の粒界侵食溝欠陥が冷間圧延後に残留するため表面光沢
が低下する。On the other hand, on the surface of the steel strip during hot rolling and annealing, the grain boundaries are preferentially oxidized and oxide scale is generated on the surface of the steel strip, and a Cr-deficient layer is formed along the grain boundaries and the acid is left as it is. When washed, oxide scales are removed and grain boundary erosion grooves are formed. The depth of the intergranular erosion grooves is about 10 μm, and the intergranular erosion groove defects remain after cold rolling, so that the surface gloss decreases.
即ち、上述した通り、光沢低下原因である表面粗さ及び
粒界侵食溝欠陥とも、鋼帯表面を予備処理時に10μｍ以
上除去できれば全く問題がなくなるわけである。That is, as described above, both the surface roughness and the grain boundary erosion groove defects, which are the causes of the decrease in gloss, will be completely eliminated if the surface of the steel strip can be removed by 10 μm or more during the pretreatment.
更に、10μｍ以上鋼帯表面を除去するには、樹脂に砥粒
を固着させた回転砥石又は回転ブラシ等の回転式研削具
を使用すると、連続工程でありながら従来のベルト式と
異なって研削粉の目詰まりによる研削量低下の問題がな
く、かつ、研削量を大きくとれる。特に、複数のスタン
ドに渡って使用すると良い。Furthermore, in order to remove the steel strip surface of 10 μm or more, use a rotary grinding tool such as a rotary grindstone or a rotary brush with abrasive grains fixed to a resin. There is no problem of a decrease in the grinding amount due to the clogging of, and a large grinding amount can be obtained. Especially, it is good to use it over a plurality of stands.
ここで、研削後の板表面粗さを平均粗さRa 1μｍ以下に
する必要があることの理由を述べる。即ち、上述の回転
砥石又は回転ブラシ等の回転式研削具により少ないスタ
ンドで研削量を多くすると、必然的に砥粒の粒径が大き
いものを使わざるを得ず、その結果鋼帯表面粗さは大き
くなってしまう。この大きな粗さは、予備処理後の冷間
圧延によっても消去されず、製品表面に残留して光沢低
下を招く。そこで、本発明者らは、予備処理としての研
削後の鋼帯表面粗さを種々変えて、その鋼帯を大量の圧
延油を供給して冷間圧延して仕上げた場合の光沢を調査
した結果、従来以上に良好な光沢を得るためには予備処
理後の粗さを平均粗さRa 1μｍ以下にすると良いことを
見い出した。Here, the reason why the plate surface roughness after grinding needs to be less than the average roughness Ra 1 μm will be described. That is, if the amount of grinding is increased with a small number of stands by a rotary grinder such as the above-mentioned rotary grindstone or a rotary brush, it is unavoidable to use the one having a large grain size of the abrasive grains, and as a result, the surface roughness of the steel strip. Will grow. This large roughness is not erased even by cold rolling after the pretreatment, and remains on the surface of the product, leading to a decrease in gloss. Therefore, the present inventors investigated the gloss when the steel strip surface roughness after grinding as a pretreatment was variously changed and the steel strip was finished by cold rolling by supplying a large amount of rolling oil. As a result, it has been found that the roughness after pretreatment should be set to an average roughness Ra of 1 μm or less in order to obtain better gloss than ever before.
尚、平均粗さRa 1μｍ以下とするには、複数の研削スタ
ンドを設け、回転砥石又は回転ブラシ等に用いる砥粒の
組合わせを前のスタンドより後のスタンドに向けて順次
粒径を細かくする方法がある。In addition, in order to reduce the average roughness Ra to 1 μm or less, a plurality of grinding stands are provided, and the combination of the abrasive grains used for the rotating grindstone or the rotating brush is made finer in order toward the stand after the front stand. There is a way.
又、上述の回転式研削具で研削したまま、又は、軽酸洗
を実施した後、無潤滑圧延、又は、ワークロール表面に
厚み１μｍ以下の油膜を付着させた圧延を施すと良い。
この時、無潤滑圧延又はワークロール表面に、薄膜を付
着させた圧延を選択した理由は、通常の冷間圧延のよう
に大量に圧延油を供給すると、研削による大きな粗さを
Ra 1μｍ以下に低減できないためである。Further, it is advisable to carry out unlubricated rolling or rolling with an oil film having a thickness of 1 μm or less adhered to the surface of the work roll as it is after being ground by the rotary grinding tool or after performing light pickling.
At this time, the reason why we chose unlubricated rolling or rolling with a thin film deposited on the surface of the work roll was that if a large amount of rolling oil was supplied as in ordinary cold rolling, large roughness due to grinding would occur.
This is because Ra cannot be reduced to 1 μm or less.
［実施例］ 以下、本発明の予備処理方法の一実施例を示す。[Example] An example of the pretreatment method of the present invention will be described below.
本発明方法に従って、熱延後のSUS304鋼帯を焼鈍し、こ
れに連続して樹脂に砥粒を固着させた回転砥石で鋼帯表
面を10μｍ以上研削した。尚、回転砥石は砥粒の粒径の
大きい順に３スタンド用いて研削し、研削後の鋼帯表面
粗さを平均粗さRa 0.8μｍとした。その後、この鋼帯を
大量の圧延油を供給して冷間圧延した後、仕上焼鈍酸洗
及び仕上調質圧延を施した。According to the method of the present invention, the hot rolled SUS304 steel strip was annealed and the surface of the steel strip was ground by 10 μm or more with a rotary grindstone in which abrasive grains were fixed to a resin. The rotary grindstone was ground using three stands in the descending order of the grain size of the abrasive grains, and the surface roughness of the steel strip after grinding was set to the average roughness Ra 0.8 μm. Then, this steel strip was cold-rolled by supplying a large amount of rolling oil, and then subjected to finish annealing pickling and finish temper rolling.
又、従来の予備処理方法として、熱延後のSUS304鋼帯を
焼鈍し、これに連続してショットブラストを施した後、
硫酸及び硝沸酸で酸洗した。その後、この鋼帯を上記の
本発明方法の実施例と同様に、大量の圧延油を供給して
冷間圧延した後、仕上焼鈍酸洗、仕上調質圧延、及びバ
フ研磨を施した。Further, as a conventional pretreatment method, after annealing the SUS304 steel strip after hot rolling and subjecting it to shot blasting continuously,
It was pickled with sulfuric acid and nitric acid. After that, this steel strip was cold-rolled by supplying a large amount of rolling oil in the same manner as in the example of the method of the present invention, and then subjected to finish annealing pickling, finish temper rolling, and buff polishing.
これら仕上げた鋼帯表面を調査し、結果を第１表に示
す。本表の表面光沢はJIS Z8741光沢度測定法５（GS20
゜）に従って測定した。光沢度は数値が大きいほど良好
である。また、疵及び酸化スケール除去効果は良好な順
にＡ〜Ｅの５段階で評価した。疵においては、鋼帯2m長
さ当り、Ａは全く無し、Ｂは１〜２個、Ｃは３〜５個、
Ｄは５〜10個、Ｅは10個以上である。また、酸化スケー
ル除去効果は、Ａがスケール全く無し、Ｂは板エッジに
微細なものが１カ所、Ｃは点在、Ｄは板エッジに帯状に
残留、Ｅは全面に斑点状に残留した状態を表す。The surface of these finished steel strips was investigated and the results are shown in Table 1. The surface gloss in this table is based on JIS Z8741 Gloss Measurement Method 5 (GS20
)). The larger the value of gloss, the better. Further, the effect of removing flaws and oxide scales was evaluated in 5 grades A to E in order of goodness. On the flaw, per 2 m length of steel strip, there is no A, B is 1-2, C is 3-5,
D is 5 to 10 and E is 10 or more. As for the oxide scale removal effect, A had no scale, B had one fine edge on the plate edge, C had scattered dots, D had band-like residue on the plate edge, and E had spot-like residue on the entire surface. Represents
本第１表より、本発明方法で予備処理した鋼帯は、従来
方法で製造した鋼帯に比べ、良好な表面光沢を有し、然
も、疵がなく、又、完全に酸化スケールが除去されたこ
とが認められる。From Table 1, it can be seen that the steel strip pretreated by the method of the present invention has a better surface gloss than the steel strip produced by the conventional method, has no flaws, and completely removes the oxide scale. It is recognized that it was done.
尚、本発明方法は、オーステナイト系SUS304に限らず、
フェライト系SUS430に適用しても上記と同様な良好な結
果が得られた。更に、仕上焼鈍酸洗を施す場合だけでな
く、仕上光輝焼鈍を施す場合にも良好であった。The method of the present invention is not limited to austenitic SUS304,
Even when applied to ferrite type SUS430, the same good results as above were obtained. Further, it was good not only when the finish annealing pickling was performed, but also when the finish bright annealing was performed.
［発明の効果］ 以上の通り、本発明方法により予備処理したステンレス
鋼帯は、熱延以前の工程の疵や、熱延後の焼鈍により生
じた酸化スケールを能率良く除去され、大量の圧延油を
供給する冷間圧延後に優れた表面光沢を得ることができ
る。即ち、本発明によれば、ステンレス冷延鋼帯を高品
質及び高能率にて生産できる。[Effects of the Invention] As described above, the stainless steel strip pretreated by the method of the present invention efficiently removes the flaws in the process before hot rolling and the oxide scale generated by annealing after hot rolling, and a large amount of rolling oil. An excellent surface gloss can be obtained after cold rolling. That is, according to the present invention, a cold rolled stainless steel strip can be produced with high quality and high efficiency.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 垣内 博之 千葉県千葉市川崎町１番地 川崎製鉄株式 会社千葉製鉄所内 (72)発明者 高田 正和 千葉県千葉市川崎町１番地 川崎製鉄株式 会社千葉製鉄所内 (72)発明者 岸田 朗 千葉県千葉市川崎町１番地 川崎製鉄株式 会社千葉製鉄所内 (56)参考文献 特開 昭57−184508（ＪＰ，Ａ) 特開 昭64−83307（ＪＰ，Ａ) ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Hiroyuki Kakiuchi 1 Kawasaki-cho, Chiba-shi, Chiba Inside the Kawasaki Steel Co., Ltd. (72) Inventor Masakazu Takada 1 Kawasaki-cho, Chiba-shi Kawasaki Steel Co., Ltd. Chiba Steel In-house (72) Inventor Akira Kishida 1 Kawasaki-cho, Chiba-shi, Chiba In-house at Chiba Works, Kawasaki Steel Co., Ltd. (56) References JP 57-184508 (JP, A) JP 64-83307 (JP, A)
Claims (2)
し、そのまま、もしくは機械的脱スケール処理を施した
後、これに連続して、樹脂に砥粒を固着させた回転式研
削具により鋼帯表面を研削量10μｍ以上で研削し、かつ
研削後の鋼帯表面の粗さを平均粗さRa 1μｍ以下とする
ことを特徴とする冷間圧延用ステンレス予備処理鋼帯の
製造方法。1. A stainless steel strip after hot rolling is annealed, and as it is or after being mechanically descaled, it is continuously processed by a rotary grinder having abrasive grains fixed to a resin. A method for producing a pre-treated stainless steel strip for cold rolling, comprising: grinding the surface of a steel strip with a grinding amount of 10 μm or more, and setting the roughness of the surface of the steel strip after grinding to an average roughness Ra of 1 μm or less.
し、そのまま、もしくは機械的脱スケール処理を施した
後、これに連続して、樹脂に砥粒を固着させた回転式研
削具により鋼帯表面を研削量10μｍ以上で研削し、研削
後にそのまま、又は、軽酸洗を施した後、無潤滑圧延、
又は、ワークロール表面に厚み１μｍ以下の油を付着さ
せた圧延を施すことを特徴とする冷間圧延用ステンレス
予備処理鋼帯の製造方法。2. A stainless steel strip after hot rolling is annealed, and as it is or after being subjected to mechanical descaling treatment, continuously with a rotary grinding tool in which abrasive grains are fixed to a resin. The steel strip surface is ground with a grinding amount of 10 μm or more, and after grinding, as it is, or after light pickling, unlubricated rolling,
Alternatively, a method of manufacturing a stainless steel pretreated steel strip for cold rolling, which comprises rolling with oil having a thickness of 1 μm or less attached to the surface of a work roll.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1281716A JPH0757362B2 (en) | 1989-10-31 | 1989-10-31 | Manufacturing method of stainless pretreated steel strip for cold rolling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1281716A JPH0757362B2 (en) | 1989-10-31 | 1989-10-31 | Manufacturing method of stainless pretreated steel strip for cold rolling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03146211A JPH03146211A (en) | 1991-06-21 |
| JPH0757362B2 true JPH0757362B2 (en) | 1995-06-21 |
Family
ID=17642991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1281716A Expired - Fee Related JPH0757362B2 (en) | 1989-10-31 | 1989-10-31 | Manufacturing method of stainless pretreated steel strip for cold rolling |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0757362B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0542463A (en) * | 1991-08-14 | 1993-02-23 | Nippon Steel Corp | Manufacture of stainless steel band excellent in surface property and hot finished steel band of stainless steel |
| US6814815B2 (en) * | 2003-04-07 | 2004-11-09 | The Material Works, Ltd. | Method of removing scale and inhibiting oxidation in processed sheet metal |
| CN102744277B (en) * | 2012-07-23 | 2015-03-04 | 中冶南方工程技术有限公司 | Method for producing cold-rolled stainless steel annealing and pickling brand steel |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57184508A (en) * | 1981-05-06 | 1982-11-13 | Nippon Tokushu Kento Kk | Descaling method of iron, steel and special steel and the like after hot rolling |
| JPS6483307A (en) * | 1987-09-24 | 1989-03-29 | Kawasaki Steel Co | Pretreatment of stainless steel strip for cold rolling |
-
1989
- 1989-10-31 JP JP1281716A patent/JPH0757362B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03146211A (en) | 1991-06-21 |
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