JPS63290602A - Manufacture of pretreated stainless steel strip for cold rolling - Google Patents
Manufacture of pretreated stainless steel strip for cold rollingInfo
- Publication number
- JPS63290602A JPS63290602A JP62123990A JP12399087A JPS63290602A JP S63290602 A JPS63290602 A JP S63290602A JP 62123990 A JP62123990 A JP 62123990A JP 12399087 A JP12399087 A JP 12399087A JP S63290602 A JPS63290602 A JP S63290602A
- Authority
- JP
- Japan
- Prior art keywords
- rolling
- steel strip
- stainless steel
- cold
- cold rolling
- 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.)
- Granted
Links
- 238000005097 cold rolling Methods 0.000 title claims abstract description 37
- 239000010935 stainless steel Substances 0.000 title claims abstract description 33
- 229910001220 stainless steel Inorganic materials 0.000 title claims abstract description 33
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 19
- 238000005096 rolling process Methods 0.000 claims abstract description 48
- 238000005098 hot rolling Methods 0.000 claims abstract description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 34
- 239000010959 steel Substances 0.000 claims description 34
- 238000000137 annealing Methods 0.000 abstract description 20
- 238000005554 pickling Methods 0.000 abstract description 14
- 238000000034 method Methods 0.000 description 27
- 230000003746 surface roughness Effects 0.000 description 11
- 239000010731 rolling oil Substances 0.000 description 9
- 238000005498 polishing Methods 0.000 description 5
- 238000007796 conventional method Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 239000010960 cold rolled steel Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 238000009499 grossing Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910001315 Tool steel Inorganic materials 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000007429 general method Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000007517 polishing process Methods 0.000 description 1
Landscapes
- Metal Rolling (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、ステンレス冷延鋼帯を生産する冷間圧延ライ
ンに供される冷間圧延用ステンレス予備処理鋼帯の製造
方法に間する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a method for manufacturing a pretreated stainless steel strip for cold rolling to be used in a cold rolling line that produces cold rolled stainless steel strip.
［従来の技術］
従来、ステンレス冷延鋼帯は、熱狂鋼帯を中間焼鈍酸洗
した後、ワークロール径 １００ｍ＋＊φ以下のゼンジ
ミアミル等で圧延油を供給して冷間圧延し、更に仕ト焼
鈍酸洗または仕上光輝焼鈍を施した後、圧下率０．５〜
１．２％の什ヒ調質圧延を行なって生産している。[Prior art] Conventionally, cold-rolled stainless steel strips are produced by intermediate annealing and pickling of heated steel strips, followed by cold rolling by supplying rolling oil with a Sendzimir mill or the like with a work roll diameter of 100 m+*φ or less, and further rolling. After annealing and pickling or finishing bright annealing, the rolling reduction is 0.5~
It is produced using 1.2% heat pass rolling.
Ｌ記ステンレス冷延鋼帯は、例えば５ＵＳ４３０に代表
されるフェライト系の場合には、建築内装材、日常器具
、種々の装飾品等の用途に使用されるため、上記仕り調
質圧延後の製品段階にて優れた表面光沢を備えることが
要求される。また、５ＵＳ３０４に代表されるオーステ
ナイト系の場合には、厨房膜＠等のフェライト系におけ
るよりも耐食性の要求される用途に使用されることが多
く、仕上調質圧延後にパフ研磨等により表面光沢を付与
したものが使用され、このパフ研磨後に優れた表面光沢
を備えることが重要となる。In the case of ferritic steel strips represented by 5US430, cold-rolled stainless steel strips listed in L are used for applications such as architectural interior materials, daily appliances, and various decorative items, so the products after heat-rolling are as follows. It is required to have excellent surface gloss at this stage. In addition, in the case of austenitic materials such as 5US304, they are often used in applications that require higher corrosion resistance than ferritic materials such as kitchen membranes, and the surface gloss is improved by puff polishing etc. after finishing temper rolling. It is important to have excellent surface gloss after this puff polishing.
そこで、従来のステンレス冷延鋼帯の製造時には、フェ
ライト系およびオーステナイト系ともに、優れた表面光
沢を得るため、例えば特開昭６０−２２７９０４号公報
、特開昭８１−４９７０５号公報等に記載されるように
冷間圧延時にワークロール径やロール粗さを工夫する方
法、特開昭５８−５６０１３号公報等に記載される中間
焼鈍酸洗時の酸洗に工夫を加える方法、または特開昭５
９−１０７０２７号公報等に記載される中間焼鈍酸洗後
にグラインター研磨を施す方法等が採用されている。Therefore, in the production of conventional cold-rolled stainless steel strips, both ferritic and austenitic steels are used as described in, for example, JP-A-60-227904 and JP-A-81-49705 in order to obtain excellent surface gloss. A method of devising the work roll diameter and roll roughness during cold rolling, a method of devising the pickling during intermediate annealing as described in JP-A-58-56013, etc. 5
The method described in Japanese Patent No. 9-107027, etc., in which grainer polishing is performed after intermediate annealing and pickling, has been adopted.
［発明が解決しようとする問題点］
しかしながら、上記従来の方法は、仕上光輝焼鈍を施し
、著しく優れた表面光沢を要求されるいわゆるＢＡ製品
においていずれも満足できる表面光沢を得ることができ
ず、より良好な表面光沢を得ることのできる製造方法が
望まれている。[Problems to be Solved by the Invention] However, the above-mentioned conventional methods cannot obtain satisfactory surface gloss in so-called BA products that are subjected to bright annealing and are required to have extremely excellent surface gloss. A manufacturing method that can obtain better surface gloss is desired.
なお、近年、圧延時間を大幅に短縮して、高能率にステ
ンレス鋼帯を製造する方法として、ゼンジミアミル等の
替わりに、より大径のワークロールを有し、高速圧延回
旋な冷間タンデムミルを用い、高能率でステンレス鋼帯
を製造する方法が採用されている。すなわち、この冷間
タンデムミルにあっては、ゼンジミアミル等が鋼帯を往
復させて圧延していたのに比べ、一方向のみの圧延を行
なうことから大幅に圧延時間を短縮できる。また、ワー
クロール径が大きいために大量の圧延油がロールバイト
に引込まれ、ロールと鋼帯が接触し難くなってヒートス
トリーク等の焼付き疵を抑制する結果、ゼンジミアミル
等におけるよりも高速の圧延が回部となり、生産性を大
幅に向上することができる。In addition, in recent years, cold tandem mills with larger diameter work rolls and high-speed rolling rotation have been used instead of Sendzimir mills, etc., as a method to significantly shorten rolling time and produce stainless steel strips with high efficiency. A method has been adopted to produce stainless steel strips with high efficiency. That is, compared to a Sendzimir mill or the like in which the steel strip is rolled in a reciprocating manner, this cold tandem mill can significantly shorten the rolling time because rolling is performed in only one direction. In addition, due to the large diameter of the work rolls, a large amount of rolling oil is drawn into the roll bite, making it difficult for the rolls and the steel strip to come into contact with each other, thereby suppressing seizure defects such as heat streaks, resulting in faster rolling than in Sendzimir mills, etc. becomes a rotating part, and productivity can be greatly improved.
しかしながら、上記冷間タンデムミルによる場合には、
ロールバイトに大量の圧延油が引込まれ、ロールと鋼帯
が接触し難くなるために、圧延後の鋼帯表面の粗さが著
しく大きくなり、これが原因して製造後の鋼帯の表面光
沢を著しく低下させる問題を常にかかえている。However, when using the cold tandem mill described above,
A large amount of rolling oil is drawn into the roll bit, making it difficult for the rolls and the steel strip to come into contact with each other, resulting in a markedly increased surface roughness of the steel strip after rolling, which causes a reduction in the surface gloss of the steel strip after production. There are always problems that cause a significant decline.
そこで、１記冷間タンデムミルにおける表面光沢低下の
問題を解決する方法として、例えば特開昭８１−２３７
２０号公報等に記載されるように、冷間圧延した後に中
間焼鈍酸洗し、その後再び冷間圧延する方法や、特開昭
８１−４！３７０１号公報等に記載されるように、大径
ワークロールで冷間圧速し、その後小径ワークロールで
冷間圧延する方法等が提案されている。しかしながら、
これらの方法は、高速で行なわれる冷間タンデムミルの
途中または終了後に中間焼鈍酸洗や小径ワークロールに
よる圧延を適用するものであるが、中間焼鈍酸洗や小径
ワークロールによる圧延が著しく低速で行なわれるため
、冷間タンデムミルのみにて圧延する場合に比して著し
く生産使率が低下する。その結果、ステンレス鋼帯の製
造に冷間タンデムミルを採用することの本来の効果とし
ての高能率生産が成立しなくなり、大きな問題となる。Therefore, as a method to solve the problem of reduced surface gloss in the cold tandem mill mentioned above, for example,
As described in Japanese Patent Publication No. 20, etc., there is a method of cold rolling followed by intermediate annealing and pickling, and then cold rolling again. A method has been proposed in which the material is cold rolled using diameter work rolls and then cold rolled using small diameter work rolls. however,
These methods apply intermediate annealing pickling and rolling with small diameter work rolls during or after the cold tandem milling, which is carried out at high speed, but intermediate annealing pickling and rolling with small diameter work rolls are extremely slow. As a result, the production utilization rate is significantly lower than when rolling is performed using only a cold tandem mill. As a result, high efficiency production, which is the original effect of adopting a cold tandem mill for manufacturing stainless steel strips, is no longer achieved, which poses a major problem.
未発明は、優れた表面光沢を有するステンレス冷延鋼帯
を高能率で生産することを目的とする。The object of the invention is to produce cold-rolled stainless steel strip with excellent surface gloss with high efficiency.
［問題点を解決するための手段］
本発明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に、焼鈍、酸
洗を施し、更に、５％を超える圧下率にて無潤滑圧延を
施すようにしたものである。[Means for Solving the Problems] The method for manufacturing a stainless steel pretreated steel strip for cold rolling according to the present invention includes annealing and pickling a stainless steel strip after hot rolling, and further adding 5% Non-lubricated rolling is performed at a reduction rate exceeding .
［作用］
一般に、ステンレス冷延鋼帯の表面光沢を良好にするに
は製品の表面粗さを低減する必要があり、また、この製
品の表面粗さは冷間圧延後の銅帯の表面粗さが大部分そ
のまま残ったものであって、冷間圧延後の表面粗さの大
小が仕上げた製品の表面光沢の良し悪しを決めることが
知られている。そこで従来にあっては、前述した通り、
冷間圧延中または冷間圧延後に鋼帯の表面粗さを低くす
る方法が採られていたわけである。[Function] In general, in order to improve the surface gloss of cold-rolled stainless steel strip, it is necessary to reduce the surface roughness of the product, and the surface roughness of this product is similar to the surface roughness of the copper strip after cold rolling. It is known that the surface roughness after cold rolling determines the quality of the surface gloss of the finished product. Therefore, in the past, as mentioned above,
The method used was to reduce the surface roughness of the steel strip during or after cold rolling.
ところが、本発明者らの検討により、製品の表面光沢に
著しく影響する冷間圧延後の鋼帯の表面粗さは、冷間圧
延前の鋼帯の表面粗さく凹凸）の一部が圧延後もそのま
ま残存したものであることを見い出した。すなわち、最
終仕上製品の表面粗さを平均粗さＲａで０．１ｐｍ以下
にすることを目標とするステンレス冷延鋼帯の製造にお
いて、中間焼鈍酸洗直後の冷延用具鋼帯は、この酸洗時
のショツトブラスト等の機械的脱スケール処理および硫
酸等の酸により、その表面の凹凸が平均粗さＲａで２〜
４ｇｍと著しく大きい、他方、冷間圧延時には、ロール
と鋼帯に圧延油が供給されている。したがって、冷間圧
延の入側で、この圧延油は、圧延面の鋼帯表面に付着し
、その表面の著しく大きい凹凸の四部にたまり、ロール
と鋼帯の間に１１み込まれる。この凹部にたまった油は
、ロールと鋼帯が接触している間、逃げ場がなくなり封
じ込められたまま圧延される。一般に、圧延油を含む液
体は、空気等の気体に比べ、著しく圧縮され難い、した
がって、圧延中に油を封じ込めた凹部は、圧延前よりい
くらか小さくなるものの、大部分が圧延後も残留する。However, the inventors' study revealed that the surface roughness of the steel strip after cold rolling, which significantly affects the surface gloss of the product, is due to the fact that some of the surface roughness (irregularities) of the steel strip before cold rolling is due to the surface roughness of the steel strip after rolling. It was discovered that it remained intact. In other words, in the production of cold rolled stainless steel strips whose goal is to reduce the surface roughness of the final finished product to an average roughness Ra of 0.1 pm or less, the cold rolled tool steel strips immediately after intermediate annealing and pickling are treated with this acid. Mechanical descaling treatment such as shot blasting during washing and acids such as sulfuric acid reduce the unevenness of the surface to an average roughness Ra of 2 to 2.
On the other hand, during cold rolling, rolling oil is supplied to the rolls and the steel strip. Therefore, on the entry side of cold rolling, this rolling oil adheres to the surface of the steel strip on the rolling surface, collects on the four parts of the extremely large unevenness of the surface, and is trapped between the roll and the steel strip. While the roll and the steel strip are in contact with each other, the oil accumulated in these recesses has no place to escape and is confined during rolling. In general, liquids containing rolling oil are significantly less compressible than gases such as air. Therefore, although the recesses in which oil is trapped during rolling become somewhat smaller than before rolling, most of them remain after rolling.
このようにして、冷間圧延前の鋼帯の表面粗さく凹凸）
が冷間圧延後も残留し、製品の表面光沢を損なってしま
うわけである。In this way, the surface roughness and unevenness of the steel strip before cold rolling are improved.
remains even after cold rolling, impairing the surface gloss of the product.
すなわち、優れた表面光沢を有する鋼帯を得るには、予
め、冷間圧延前の鋼帯表面の凹凸を小さくすると良く、
それには以下の方法の採用が考えられる。That is, in order to obtain a steel strip with excellent surface gloss, it is recommended to reduce the irregularities on the surface of the steel strip before cold rolling.
The following methods can be considered for this purpose.
■圧延によって鋼帯表面を平滑にする方法■グラインダ
ー等で鋼帯表面を研磨する方法ここで、■のグラインダ
ー等による研磨は、６トンコイルで約４〜５時間もかか
り、ステンレス鋼帯の生産能率を著しく阻害するため、
特殊な場合を除き実用的でない、したがって、■の圧延
によって平滑にする方法が有利であるが、圧延油を供給
した従来の冷間圧延では、上述の通り、冷間圧延前の鋼
帯表面の凹凸を大部分消すことができない。■Method of smoothing the surface of the steel strip by rolling■Method of polishing the surface of the steel strip with a grinder etc.Here, polishing with a grinder etc. in (■) takes about 4 to 5 hours with a 6 ton coil, which increases the production efficiency of stainless steel strip. Because it significantly inhibits
This method is not practical except in special cases. Therefore, method (2) of smoothing by rolling is advantageous. However, in conventional cold rolling using rolling oil, as mentioned above, the surface of the steel strip before cold rolling is smoothed. Most of the unevenness cannot be erased.
そこで、本発明による方法では冷間圧延前の予備処理と
して前述の知見から、圧延油等の液体を供給しない無潤
滑圧延をしかも５％を超える圧下率のもとで施すもので
ある。Therefore, in the method of the present invention, as a preliminary treatment before cold rolling, based on the above-mentioned knowledge, non-lubricated rolling is performed without supplying any liquid such as rolling oil, and at a rolling reduction of more than 5%.
なおここで、無潤滑圧延時に、５％を超える圧下率が必
要な理由は、以下の通りである。本発明者らの検討にお
いて、冷間圧延前の無潤滑圧延時の圧下率を種々変えて
通板し、その後、圧延油を供給した冷間圧延、仕上焼鈍
酸洗または仕上光輝焼鈍、および仕上調質圧延を行なっ
て仕上げた製品の表面光沢を調査した。なお、表面光沢
度は、ＪＩＳ Ｚ ８７４１光沢度測定方法５ （ＧＳ
２０°）に従って測定した。第１図に示す結果より、大
径ワークロールを用いた冷間タンデムミルの場合、小径
ワークロールを用いたゼンジミアミルの場合ともに、無
潤滑圧延時の圧下率を増加させると、圧下率５％まで表
面光沢はほとんど変化しないが、５％を超えると表面光
沢は著しく良好となる。The reason why a rolling reduction of more than 5% is required during non-lubricated rolling is as follows. In the studies conducted by the present inventors, sheets were passed through various reduction ratios during non-lubricated rolling before cold rolling, followed by cold rolling with rolling oil supplied, finish annealing pickling or finish bright annealing, and finish annealing. The surface gloss of products finished by temper rolling was investigated. In addition, the surface glossiness is measured according to JIS Z 8741 Glossiness Measuring Method 5 (GS
20°). From the results shown in Figure 1, in the case of the cold tandem mill using large-diameter work rolls and the Sendzimir mill using small-diameter work rolls, when the rolling reduction during non-lubricated rolling is increased, the rolling reduction reaches 5%. The surface gloss hardly changes, but when it exceeds 5%, the surface gloss becomes significantly better.
このように、５％を超える圧下率のもとでの無潤滑圧延
は、表面光沢を著しく良好にするわけであるが、反面、
従来技術にない高い圧下率を必要とするため無潤滑状態
でロールと鋼帯が直接接触するために焼付き疵が発生し
易く、従って、低速で圧延し、焼付き疵を防ぐ必要があ
る。その結果、高速で行なわれる冷間圧延の生産性を阻
害する懸念があった。しかし、冷間圧延時の鋼帯入側速
度は低く、本発明方法は、上記無潤滑圧延を冷間圧延前
の予備処理工程として実施するため、冷間圧延の生産能
率を阻害することがない、従って、冷延鋼帯製造の最終
工程として低速で行なわれるゼンジミアミルの場合だけ
でなく、高速で行なわれる冷間タンデムミルの場合にお
いても、焼付き疵を発生させずに有利に適用できる。In this way, non-lubricated rolling under a rolling reduction of more than 5% improves the surface gloss significantly, but on the other hand,
Since it requires a high rolling reduction rate that is not available in the prior art, the roll and steel strip come into direct contact without lubrication, which tends to cause seizure flaws, and therefore it is necessary to roll at a low speed to prevent seizure flaws. As a result, there was a concern that the productivity of cold rolling performed at high speed would be hindered. However, the steel strip entry speed during cold rolling is low, and the method of the present invention performs the above-mentioned non-lubricated rolling as a preliminary treatment step before cold rolling, so it does not impede the production efficiency of cold rolling. Therefore, it can be advantageously applied not only to the Sendzimir mill, which is carried out at low speed as the final step in the production of cold rolled steel strip, but also to the case of cold tandem mill, which is carried out at high speed, without causing seizure defects.
なお、本発明方法における前処理工程の１つである焼鈍
、酸洗工程は、冷間圧延工程よりも更に低速で通板され
るため、本発明方法の、上記無潤滑圧延工程を焼鈍、酸
洗工程の出側に設置するのが好適である。Note that the annealing and pickling steps, which are one of the pretreatment steps in the method of the present invention, are passed at a lower speed than the cold rolling step. It is suitable to install it on the outlet side of the washing process.
［実施例コ
本発明方法に従って、第１表に示すような熱延後に中間
焼鈍酸洗したステンレス鋼帯を、通常のクロム鍛鋼ロー
ルを用いて第２表（Ａ）、（Ｂ）、第３表（Ａ）、ＣＢ
）の圧延条件で無潤滑圧延を施し、この無潤滑圧延にて
得られた予備処理鋼帯を冷間タンデムミルおよびゼンジ
ミアミルで冷間圧延し、更に仕上焼鈍酸洗または仕上光
輝焼鈍を施した後、仕上調質圧延した。なお、第３表（
Ａ）、（Ｂ）のオーステナイト系の場合には、仕上調質
圧延後に更にパフ研磨を施した。これら冷延製品の表面
光沢度およびその目視判定結果を、フェライト系につい
ては第２表（Ａ）、（Ｂ）に示し、オーステナイト系に
ついては第３表（Ａ）、（Ｂ）に示した。なお、目視判
定は、光沢の良好な順に特Ａ、Ａ−Ｄまでの５段階に区
分した。[Example] According to the method of the present invention, hot-rolled, intermediate-annealed and pickled stainless steel strips as shown in Table 1 were rolled using ordinary chrome forged steel rolls as shown in Tables 2 (A), (B), and 3. Table (A), CB
), and the pretreated steel strip obtained by this non-lubricated rolling is cold rolled in a cold tandem mill and a Sendzimir mill, and then subjected to finish annealing pickling or finish bright annealing. , finish temper rolling. In addition, Table 3 (
In the case of austenitic steels of A) and (B), puff polishing was further performed after finish temper rolling. The surface glossiness and visual evaluation results of these cold-rolled products are shown in Tables 2 (A) and (B) for ferritic products, and in Table 3 (A) and (B) for austenitic products. The visual evaluation was divided into five grades from A to A to D in descending order of gloss.
なお、第１表に示すステンレス鋼帯を従来方法および％
潤滑圧送時の圧下率を５％以下の低い状態に設定した比
較方法のそれぞれにて冷間圧延して得られた冷延製品の
実施結果についても、第２表（Ａ）、（Ｂ）、第３表（
Ａ）、（Ｂ）に示した。In addition, the stainless steel strips shown in Table 1 were prepared using the conventional method and %
Table 2 (A), (B), Table 3 (
Shown in A) and (B).
第２表（Ａ）、（Ｂ）、第３表（Ａ）、（Ｂ）によれば
、本発明方法で製造した予備処理鋼帯を用いて得られた
ステンレス鋼帯は、従来方法、比較方法のそれぞれにて
製造したステンレス鋼帯に比べ、表面光沢度が著しく良
好であり、目視判定も１ランク以上良好なものが多数認
められた。According to Tables 2 (A) and (B) and Table 3 (A) and (B), the stainless steel strip obtained using the pretreated steel strip produced by the method of the present invention was Compared to the stainless steel strips produced by each method, the surface gloss was significantly better, and many of the strips were visually judged to be better than one rank.
すなわち、本発明方法により製造したステンレス予備処
理鋼帯を冷間圧延して得られるステンレス冷延鋼帯は、
従来方法で製造したステンレス冷ｔｍ帯に比べ、優れた
表面光沢を有する。特に、冷間タンデムミルによる圧延
の場合、従来方法では到底到達不可能であったゼンジミ
アミルによる圧延と同等以上の優れた表面光沢を有する
。That is, the stainless steel cold rolled steel strip obtained by cold rolling the stainless steel pretreated steel strip produced by the method of the present invention is as follows:
It has superior surface gloss compared to stainless steel cold TM bands manufactured by conventional methods. In particular, in the case of rolling with a cold tandem mill, it has an excellent surface gloss equivalent to or better than rolling with a Sendzimir mill, which was completely unattainable by conventional methods.
また、本発明方法は、無簡滑圧延を冷間圧延前に実施す
るものであるため、熱延鋼帯を中間焼鈍酸洗し冷間圧延
する従来の一般的方法に比較して全く生産崗率を損なう
ことがないし、冷間圧延中または冷間圧延後に小径ワー
クロール圧延等を行なう従来の改善方法よりも著しく高
能率にて生産でき、かつ良好な表面光沢を確保できる。In addition, since the method of the present invention performs no-smooth rolling before cold rolling, the production efficiency is completely reduced compared to the conventional general method in which hot-rolled steel strip is subjected to intermediate annealing, pickling, and cold rolling. The production efficiency is significantly higher than that of conventional improvement methods in which rolling with small-diameter work rolls is performed during or after cold rolling, and good surface gloss can be ensured.
なお、本発明方法が適用されるステンレス鋼帯にはステ
ンレス鋼板等も含まれる。Note that the stainless steel strip to which the method of the present invention is applied also includes stainless steel plates and the like.
［発明の効果］
以上のように、本発明に係る冷間圧延用ステンレス予備
処理鋼帯の製造方法によれば、ステンレス鋼帯の生産廃
車を阻害することなく、冷間圧延前の鋼帯表面の凹凸を
小さくすることができ、優れた表面光沢を有するステン
レス冷延鋼帯を高能率で生産することができる。[Effects of the Invention] As described above, according to the method for producing stainless steel pretreated steel strip for cold rolling according to the present invention, the surface of the steel strip before cold rolling can be improved without hindering the production and scrapping of stainless steel strips. This makes it possible to reduce the unevenness of the surface and produce cold-rolled stainless steel strip with excellent surface gloss with high efficiency.
第１図は冷間圧延前の無間滑圧延時の圧下率と仕上げた
製品の表面光沢度との関係を示す線図である。FIG. 1 is a diagram showing the relationship between the rolling reduction during smooth rolling before cold rolling and the surface gloss of the finished product.
Claims (1)
を施し、更に、５％を超える圧下率にて無潤滑圧延を施
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。(1) Stainless steel pre-treated steel strip for cold rolling, characterized in that the stainless steel strip after hot rolling is annealed, pickled, and then non-lubricated rolled at a rolling reduction of more than 5%. manufacturing method.
Priority Applications (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62123990A JPS63290602A (en) | 1987-05-22 | 1987-05-22 | Manufacture of pretreated stainless steel strip for cold rolling |
| US07/195,723 US4885042A (en) | 1987-05-22 | 1988-05-18 | Method and apparatus for preliminary treatment of stainless steel for cold rolling |
| EP88304596A EP0292313B1 (en) | 1987-05-22 | 1988-05-20 | Method for preliminary treatment of stainless steel for cold rolling |
| DE88304596T DE3883842T2 (en) | 1987-05-22 | 1988-05-20 | Process for pre-treating stainless steel for cold rolling. |
| CA000567422A CA1302849C (en) | 1987-05-22 | 1988-05-20 | Method and apparatus for preliminary treatment of stainless steel forcold rolling |
| AU16482/88A AU604546B2 (en) | 1987-05-22 | 1988-05-20 | Method and apparatus for preliminary treatment of stainless steel for cold rolling |
| CN88103090A CN1016850B (en) | 1987-05-22 | 1988-05-21 | Method and apparatus for preliminary treatment of stainless steel for cold rolling |
| KR1019880006056A KR930003597B1 (en) | 1987-05-22 | 1988-05-21 | Method and apparatus for preliminary treatment of stainless steel for cold rolling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62123990A JPS63290602A (en) | 1987-05-22 | 1987-05-22 | Manufacture of pretreated stainless steel strip for cold rolling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63290602A true JPS63290602A (en) | 1988-11-28 |
| JPH0436762B2 JPH0436762B2 (en) | 1992-06-17 |
Family
ID=14874309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62123990A Granted JPS63290602A (en) | 1987-05-22 | 1987-05-22 | Manufacture of pretreated stainless steel strip for cold rolling |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63290602A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6483307A (en) * | 1987-09-24 | 1989-03-29 | Kawasaki Steel Co | Pretreatment of stainless steel strip for cold rolling |
| JPH01107907A (en) * | 1987-10-21 | 1989-04-25 | Kawasaki Steel Corp | Device for pretreating stainless steel strip for cold rolling |
| JPH08229603A (en) * | 1995-02-27 | 1996-09-10 | Kawasaki Steel Corp | Manufacture of preliminarily treated stainless steel strip for cold rolling |
| CN101869911A (en) * | 2010-06-24 | 2010-10-27 | 永鑫精密材料（无锡）有限公司 | Productive technology of precise stainless steel strip used for high-end mobile phone |
| CN103302096A (en) * | 2013-06-25 | 2013-09-18 | 无锡天辰冷拉型钢有限公司 | Cold rolling-drawing method for producing small-sized square flat steel with low-carbon and high-sulfur free-cutting steel |
| CN106670729A (en) * | 2015-11-06 | 2017-05-17 | 薛根友 | Method for producing common flat key through continuous drawing and continuous rolling process |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5195962A (en) * | 1975-02-21 | 1976-08-23 | Sutenresukono seizoho |
-
1987
- 1987-05-22 JP JP62123990A patent/JPS63290602A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5195962A (en) * | 1975-02-21 | 1976-08-23 | Sutenresukono seizoho |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6483307A (en) * | 1987-09-24 | 1989-03-29 | Kawasaki Steel Co | Pretreatment of stainless steel strip for cold rolling |
| JPH0436763B2 (en) * | 1987-09-24 | 1992-06-17 | Kawasaki Steel Co | |
| JPH01107907A (en) * | 1987-10-21 | 1989-04-25 | Kawasaki Steel Corp | Device for pretreating stainless steel strip for cold rolling |
| JPH08229603A (en) * | 1995-02-27 | 1996-09-10 | Kawasaki Steel Corp | Manufacture of preliminarily treated stainless steel strip for cold rolling |
| CN101869911A (en) * | 2010-06-24 | 2010-10-27 | 永鑫精密材料（无锡）有限公司 | Productive technology of precise stainless steel strip used for high-end mobile phone |
| CN103302096A (en) * | 2013-06-25 | 2013-09-18 | 无锡天辰冷拉型钢有限公司 | Cold rolling-drawing method for producing small-sized square flat steel with low-carbon and high-sulfur free-cutting steel |
| CN106670729A (en) * | 2015-11-06 | 2017-05-17 | 薛根友 | Method for producing common flat key through continuous drawing and continuous rolling process |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0436762B2 (en) | 1992-06-17 |
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