JP2727356B2 - Stainless steel plate and its manufacturing method - Google Patents
Stainless steel plate and its manufacturing methodInfo
- Publication number
- JP2727356B2 JP2727356B2 JP12413489A JP12413489A JP2727356B2 JP 2727356 B2 JP2727356 B2 JP 2727356B2 JP 12413489 A JP12413489 A JP 12413489A JP 12413489 A JP12413489 A JP 12413489A JP 2727356 B2 JP2727356 B2 JP 2727356B2
- Authority
- JP
- Japan
- Prior art keywords
- stainless steel
- steel plate
- steel sheet
- colored
- acid
- 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
Links
Description
〔産業上の利用分野〕 本発明は、淡彩な色調と淡い光沢とを有する意匠効果
の高いステンレス意匠鋼板及びその製造方法に関するも
のである。 〔従来の技術〕 今日、屋根や天井や壁や内外装パネルなどの建材をは
じめ、エレベータや車両，洗面化粧台，浴槽，厨房等の
種々の素材として、耐食性、耐候性，耐薬品性，耐熱性
及び耐衝撃性に優れており且つ外観も美麗に着色され或
いは模様を有する意匠効果の高い金属板が強く望まれる
ようになつてきた。 そのため、従来はJISG4305「冷間圧延ステンレス鋼
板」に規定されるステンレス鋼板の表面を硫酸とクロム
酸又はクロム酸塩との混酸で処理して表面に着色皮膜を
生じせしめる化学着色法によつて表面を着色したものや
更にはこの化学着色法によつて表面を着色したものをエ
ンボス加工法等によつて仕上げて表面に凹凸加工を施し
たステンレス鋼板製の意匠鋼板などが使用されてきた。 〔発明が解決しようとする課題〕 しかしながら、このような従来のステンレス鋼板製の
意匠鋼板は、化学着色法によつて着色しても非常に複雑
で且つ厳密な工程管理を行わない限り単色のものしか得
られないために色調が単調になり易く、またその色彩は
濃い原色のみがほとんどで多種多様な色彩のニーズに対
応出来ず、特に中間の淡い色彩のものが得られないとい
う問題点があつた。 更に、化学着色されたステンレス鋼板は一般に滑らか
な表面を有するために太陽光線や照明光線等が反射し易
いので非常に眩しく目に疲労感を与えるという問題点も
あり、一方エンボス加工法等によつて表面に凹凸加工を
施したステンレス鋼板製の意匠鋼板においては光線の反
射は少ないがその表面全体が着色されたものは濃い原色
を呈することに変わりがなく、中間の淡い色彩のものが
得られないという問題点はそのまま残つていた。 そこで本発明は、それぞれの原色が薄められた淡彩色
を呈し且つ表面の光沢も強くなくやや防眩性を有して全
体として柔らかな色調，印象を与えるステンレス意匠鋼
板及びその製造方法を提供することを課題とする。 〔課題を解決するための手段〕 本発明者等は前記課題を解決するために種々検討した
結果、特殊な加工方法によつて処理した方向性のない所
定範囲の粗さの表面凹凸部を有するステンレス鋼板をク
ロム酸又はクロム酸塩との混酸で処理してその表面に着
色皮膜を形成させ、更に必要に応じてその着色皮膜の硬
化処理を行い、その着色皮膜面を所定範囲内の十点平均
粗さ（Rz）に研摩して凸部においてステンレス鋼板素地
面を露出させ、そのステンレス鋼板素地面の面積が全表
面積に対して所定範囲の面積比率を占めるようにするこ
とによつて、淡彩色を呈し且つ表面の光沢もあまり強く
ない淡い光沢を有するステンレス意匠鋼板が得られるこ
とを究明して本発明を完成したのである。 以下、図面に基づいて本発明に係るステンレス意匠鋼
板及びその製造方法について詳細に説明する。 第１図は本発明に係るステンレス意匠鋼板の１実施例
を示す拡大断面説明図、第２図は本発明に係るステンレ
ス意匠鋼板製造前の着色ステンレス鋼板（素材）の１例
を示す拡大断面説明図である。 図面中、１は本発明に係るステンレス意匠鋼板であ
り、このステンレス意匠鋼板１は第２図に示すように焼
鈍酸洗，冷間圧延を繰り返され必要に応じてその途中で
表面研摩を施されて所定寸法の板厚及び板幅に製造され
たステンレス鋼板２を原板とし、その原板２の表面を方
向性のない十点平均粗さ（Rz）が10〜25μｍの範囲にあ
る圧延ワークロールにより圧下率0.1〜0.6％で軽圧延し
てその表面に方向性のない十点平均粗さ（Rz）で１を超
え12μｍ程度までの表面凸部３及び表面凹部４を形成せ
しめ、次にこの表面に硫酸とクロム酸又はクロム酸塩と
の混酸で処理される化学着色処理及び更に必要に応じて
硫酸又はリン酸とクロム酸との混酸で陰極電解処理され
る硬化処理が施されて表面全面に着色皮膜５を形成せし
められたものを素材とする。 このようにして軽圧延されたステンレス鋼板２（原
板）は第２図に示すようにその表面全面に着色皮膜５が
形成されて素材となるが、この着色素材表面が更に方向
性のない１〜８μｍの範囲の十点平均粗さ（Rz）になる
まで研摩されて第１図に示す如くその表面に凸部３に形
成されていた着色皮膜５が除去されてステンレス鋼板素
地面６が露出せしめられると共に凹部４には着色皮膜5a
が除去されずに残存しているステンレス意匠鋼板１とな
るのである。この凸部３の着色皮膜５を除去されたステ
ンレス鋼板素地面６は、光沢を有さないステンレス鋼板
素地面の場合と鏡面状態に研摩された光沢を有するステ
ンレス鋼板素地面の場合とがある。このように本発明に
係るステンレス意匠鋼板１を製造するための原板である
ステンレス鋼板２が、その表面が方向性のない十点平均
粗さ（Rz）が10〜25μｍの範囲にある圧延ワークロール
によつて圧下率0.1〜0.6％で軽圧延したものでなければ
ならないのは、本発明に係るステンレス意匠鋼板１が前
述したように原色が薄められた淡彩な色調を呈し且つ表
面の光沢も強くなくやや防眩性を有して全体として柔ら
かな色調，印象を与えるものであるから、後述する研摩
を行う前においてもその表面が方向性の無い表面粗さの
状態になければならず且つ後述する研摩を行つた後に所
定の表面粗さの状態になるためには研摩を行う前におい
てその表面粗さが研摩後の表面粗さよりも粗いことが必
要であり、このような条件を満たすものとして十点平均
粗さ（Rz）が10μｍより小さい圧延ワークロールによつ
て軽圧延したのでは以後の研摩で所望の表面粗さ未満と
なつて表面の光沢が大となり防眩性を呈しなくなつて好
ましくなく、また25μｍよりも大きい圧延ワークロール
によつて軽圧延したのでは以後の研摩で残存する着色皮
膜5aの部分とステンレス鋼板素地面６とが明確に可視さ
れて全体の色調が斑点状になり看る距離によつては淡彩
色を呈しなくなることがあるので好ましくないからであ
る。そして、このように圧下率0.1〜0.6％で軽圧延する
のは、圧下率が0.1％未満と非常に小さいとステンレス
鋼板２の原板表面が前述した方向性のない十点平均粗さ
（Rz）で１を超えた表面粗さにならないからであり、ま
た0.6％を超えると前述の如き本発明に係る意匠性を有
するステンレス鋼板とならないばかりかステンレス鋼板
表面の加工硬化の程度が大きくなつて以後の種々の製品
とするための加工時に弊害が生じるからである。 次に、このようなステンレス意匠鋼板１として、その
素材表面を方向性のない１〜８μｍの範囲の十点平均粗
さ（Rz）になるまで研摩する方法としては、例えば50〜
300rpmの回転速度で回転せしめられる軸に固定されてい
る直径が200〜1,000mmの円板に厚さが５〜100mmのポリ
エチレン発泡体，ポリウレタンフオーム（発泡体）,6−
６ナイロン不織布や６ナイロン不織布の如き合成樹脂発
泡体や不織布を当着したものをその合成樹脂発泡体や不
織布が全面着色されたステンレス鋼板２の表面に0.01〜
0.04kgf/cm2の接触面圧となるように押し付けて接触さ
せ、場合によつては水もしくは７％以下の濃度の硝酸水
溶液1m3中に１〜５μｍの粒度の研摩剤例えば研摩剤がA
l2O3である場合には700〜1,000g混合した研摩液を、軸
の中空部，円板及びその円板に当着された合成樹脂発泡
体や不織布の中央の開口部を被研摩表面に対し５〜20
/m2供給しながらその合成樹脂発泡体や不織布を１〜10m
/minの速度で縦，横，斜めなどの所望の方向に調節しな
がら移動させることによつて行えば良い。 このような研摩方法において、軸の回転速度は100〜2
50rpmがより好ましく、合成樹脂発泡体や不織布の厚さ
は20〜60mmの範囲がより好ましい。そして軸に固定され
ている円板に合成樹脂発泡体や不織布を当着するには、
接着剤で貼着したり、ベルベツト式フアスナーなどを用
いて装着したり、その他種々の方法で取り付ければよ
い。 また、研摩剤としては品質的に安定しており且つ特異
な色調を有しない白色のAl2O3が研摩加工等の製造中も
含めて意匠鋼板製品表面を着色したり或いは着色した状
態に見せたりすることなく、しかも製造現場を変な色に
汚染したりすることがないので最も好ましいが、その他
にCr2O3やFe2O3などを用いたり、更にはこれらを適宜混
合したものを用いてもよい。このような研摩剤の粒度と
しては、５μｍを超えると研摩した表面凸部３のステン
レス鋼板素地面６にスクラツチ目が確認されて好ましく
ない場合があり、当該面６を鏡面状に仕上げるには１〜
３μｍの粒度範囲がより好ましい。 このように本発明に係るステンレス意匠鋼板１は、そ
の表面が方向性の無い十点平均粗さ（Rz）で１〜８μｍ
の範囲の凹凸部を有していることが必要である。これは
十点平均粗さ（Rz）が１μｍより小さいと表面の光沢が
大となり防眩性を呈しなくなるからであり、また８μｍ
よりも大になると研摩後の残存着色皮膜5aの部分とステ
ンレス鋼板素地面６とが明確に可視されて全体の色調が
斑点状になり看る距離によつては淡彩色を呈しなくなる
のである。また、研摩された後のステンレス鋼板素地面
６の面積は、ステンレス鋼板２の全表面面積の10〜90％
を占めていることが必要であり、これは10％よりも少な
いと全面着色されたステンレス鋼板２の表面に研摩を施
さない場合と比べて殆ど変わらないからであり、90％よ
りも多いとステンレス鋼板２の表面をほぼ完全に研摩し
たことになつて表面凹部４に着色皮膜5aが殆ど残らない
ことになるからである。[Industrial application field] The present invention relates to a stainless steel plate having a high design effect having a light color tone and a light luster, and a method for producing the same. [Prior art] Today, as a variety of materials for roofs, ceilings, walls, interior and exterior panels, etc., as well as elevators, vehicles, vanities, bathtubs, kitchens, etc., corrosion resistance, weather resistance, chemical resistance, heat resistance. There has been a strong demand for a metal plate having excellent design and effect, which has excellent properties and impact resistance, and has a beautifully colored or patterned appearance. Therefore, the surface of a stainless steel sheet conventionally specified in JISG4305 “Cold rolled stainless steel sheet” is treated with a mixed acid of sulfuric acid and chromate or chromate to form a colored film on the surface by a chemical coloring method. In addition, a design steel plate made of a stainless steel plate having a surface colored by the chemical coloring method and a stainless steel plate having a surface irregularity finished by an embossing method or the like has been used. [Problems to be Solved by the Invention] However, such conventional design steel plates made of stainless steel plate are very complicated even if colored by a chemical coloring method and are monochromatic unless strict process control is performed. The color tone tends to be monotonic because it can only be obtained, and the colors are mostly dark primary colors and cannot meet the needs of a wide variety of colors. Was. In addition, the chemically colored stainless steel sheet generally has a smooth surface and is easily reflected by sun rays and illumination rays, so that it is extremely dazzling and gives eyes a feeling of fatigue. In the case of a design steel plate made of stainless steel plate whose surface is roughened, the reflection of light is small, but the one whose surface is colored is still the same as a dark primary color, and a medium light color is obtained. The problem of not having remained. Accordingly, the present invention provides a stainless steel plate having a soft color tone and impression as a whole, each of which has a pale color in which each primary color is diluted, has a strong surface gloss, has a slight antiglare property, and gives a soft color tone and impression as a whole, and a method for producing the same. That is the task. [Means for Solving the Problems] The present inventors have conducted various studies to solve the above problems, and as a result, have a surface uneven portion having a predetermined range of roughness with no directivity processed by a special processing method. A stainless steel plate is treated with chromic acid or a mixed acid with chromate to form a colored film on the surface, and if necessary, the colored film is cured. By polishing to a mean roughness (Rz) and exposing the stainless steel plate ground at the convex portion, and making the area of the stainless steel plate ground occupy a predetermined range of the total surface area, the lightness is reduced. The inventors of the present invention have completed the present invention by finding that a stainless steel plate having a color and a light gloss having a low surface gloss is not so strong. Hereinafter, a stainless steel design steel sheet according to the present invention and a method for manufacturing the same will be described in detail with reference to the drawings. FIG. 1 is an enlarged sectional explanatory view showing one embodiment of a stainless steel sheet according to the present invention, and FIG. 2 is an enlarged sectional explanation showing one example of a colored stainless steel sheet (raw material) before manufacturing the stainless steel sheet according to the present invention. FIG. In the drawings, reference numeral 1 denotes a stainless steel sheet according to the present invention, and this stainless steel sheet 1 is subjected to repeated annealing pickling and cold rolling as shown in FIG. A stainless steel sheet 2 manufactured to a predetermined thickness and width is used as a base plate, and the surface of the base plate 2 is rolled by a rolled work roll having a ten-point average roughness (Rz) in the range of 10 to 25 μm with no directionality. The surface is lightly rolled at a rolling reduction of 0.1 to 0.6% to form a surface convex portion 3 and a surface concave portion 4 having a non-directional ten-point average roughness (Rz) of more than 1 and up to about 12 μm on the surface. Is subjected to a chemical coloring treatment with a mixed acid of sulfuric acid and chromic acid or chromate and, if necessary, a cathodic electrolytic treatment with a mixed acid of sulfuric acid or phosphoric acid and chromic acid, and the entire surface is treated. The material on which the colored film 5 is formed is used as a material. The lightly rolled stainless steel sheet 2 (original sheet) is a material having a colored film 5 formed on the entire surface thereof as shown in FIG. Polishing was performed to a ten-point average roughness (Rz) in the range of 8 μm to remove the colored film 5 formed on the convex portion 3 on the surface as shown in FIG. The colored film 5a
Is the stainless steel plate 1 that remains without being removed. The stainless steel plate ground 6 from which the colored film 5 of the projections 3 is removed may be a stainless steel plate having no gloss or a stainless steel plate having a gloss polished to a mirror surface. As described above, the rolled work roll in which the stainless steel plate 2 which is the original plate for manufacturing the stainless steel design steel plate 1 according to the present invention has a ten-point average roughness (Rz) having a non-directional surface in the range of 10 to 25 μm. Must be lightly rolled at a rolling reduction of 0.1 to 0.6%, because the stainless steel design steel sheet 1 according to the present invention has a light color tone whose primary colors have been reduced as described above and has a strong surface gloss. Since it has a somewhat anti-glare property and gives a soft color tone and impression as a whole, the surface must be in a state of non-directional surface roughness even before the polishing described later, and will be described later. In order to achieve a predetermined surface roughness state after performing polishing, it is necessary that the surface roughness is greater than the surface roughness after polishing before polishing is performed, and such a condition is satisfied. 10 point average coarse If light rolling is performed using a roll having a (Rz) of less than 10 μm, it is not preferable because the surface roughness becomes less than the desired surface roughness in the subsequent polishing and the surface becomes so glossy that it does not exhibit antiglare properties. If light rolling is performed using a larger work roll, the portion of the colored film 5a remaining in the subsequent polishing and the stainless steel plate ground 6 will be clearly visible, and the overall color tone will be spotted. This is because it is not preferable because the light-colored color may not be exhibited. Light rolling at a rolling reduction of 0.1 to 0.6% in this way means that if the rolling reduction is very small, less than 0.1%, the original plate surface of the stainless steel plate 2 has the above-mentioned ten-point average roughness (Rz) having no directivity. If the surface roughness exceeds 0.6%, not only the stainless steel sheet having the designability according to the present invention as described above will not be obtained, but also the degree of work hardening of the surface of the stainless steel sheet will increase, and This is because adverse effects occur at the time of processing to obtain various products. Next, as a method of polishing the surface of the material of such a stainless steel plate 1 having a ten-point average roughness (Rz) in the range of 1 to 8 μm with no directivity, for example, 50 to 50
Polyethylene foam, polyurethane foam (foam) with a thickness of 5 to 100 mm on a disk with a diameter of 200 to 1,000 mm fixed to a shaft rotated at a rotation speed of 300 rpm, 6-
A synthetic resin foam or non-woven fabric such as 6 nylon non-woven fabric or 6 nylon non-woven fabric is applied to the surface of the stainless steel plate 2 on which the synthetic resin foam or non-woven fabric is entirely colored, from 0.01 to
0.04kgf / cm pressed so that the second contact surface pressure in contact, 1 to 5 [mu] m particle size of the abrasive agent such as abrasive by connexion to an aqueous nitric acid solution 1 m 3 of water or 7% or less concentration when the A
In the case of l 2 O 3 , the polishing liquid mixed with 700 to 1,000 g is applied to the hollow portion of the shaft, the disk, and the central opening of the synthetic resin foam or non-woven fabric attached to the disk to the surface to be polished. 5-20 for
/ m 2 while feeding the synthetic resin foam or non-woven fabric 1-10m
It may be carried out by moving at a speed of / min while adjusting in a desired direction such as vertical, horizontal or oblique. In such a polishing method, the rotation speed of the shaft is 100 to 2
50 rpm is more preferable, and the thickness of the synthetic resin foam or nonwoven fabric is more preferably in the range of 20 to 60 mm. And in order to apply a synthetic resin foam or nonwoven fabric to the disk fixed to the shaft,
It may be attached with an adhesive, attached with a velvet fastener, or attached by various other methods. In addition, as an abrasive, white Al 2 O 3 that is stable in quality and does not have a peculiar color tone causes the surface of the designed steel sheet product to be colored or appear to be in a colored state even during production such as polishing. It is most preferable because it does not cause contamination of the production site with strange colors, and it is also preferable to use Cr 2 O 3 or Fe 2 O 3 etc. May be used. If the particle size of such an abrasive is more than 5 μm, scratches may be observed on the ground stainless steel plate 6 of the polished surface convex portion 3, which may be undesirable. ~
A particle size range of 3 μm is more preferred. As described above, the stainless steel design steel sheet 1 according to the present invention has a ten-point average roughness (Rz) having a non-directional surface of 1 to 8 μm.
It is necessary to have the concave and convex portions in the range. This is because if the ten-point average roughness (Rz) is smaller than 1 μm, the surface gloss increases and the anti-glare property is not exhibited, and 8 μm
If it is larger than that, the portion of the remaining colored film 5a after polishing and the stainless steel plate ground 6 are clearly visible, and the whole color becomes spot-like, and does not exhibit a pale color depending on the distance viewed. The area of the ground stainless steel plate 6 after polishing is 10 to 90% of the total surface area of the stainless steel plate 2.
It is necessary to occupy less than 10%, because the surface is almost the same as when the surface of the colored stainless steel plate 2 is not polished if it is less than 10%. This is because the surface of the steel plate 2 is almost completely polished, so that the colored film 5a hardly remains in the surface concave portion 4.
本発明に係るステンレス意匠鋼板の概略製造工程を第
３図によつてより詳細に説明する。 先ず、代表鋼種であるSUS304やSUS430などのステンレ
ス熱間圧延鋼帯を焼鈍酸洗した後、冷間圧延及び焼鈍酸
洗を必要に応じて繰返し実施し、その工程中で必要に応
じて表面研摩を施して例えば0.3〜2.0mmで板幅600〜1,3
00mmの寸法範囲内で所定寸法のステンレス冷間圧延鋼帯
すなわち原板であるステンレス鋼板２を製造した。 次にこの原板を方向性のない十点平均粗さ（Rz）が10
〜25μｍの範囲にある比較的大径の圧延ワークロール
（冷間圧延機又は調質圧延機のワークロール）により圧
下率0.1〜0.6％で連続的に軽圧延することによつて、原
板表面に方向性のない十点平均粗さ（Rz）で１を超え12
μｍの範囲程度の微細な表面凹凸部を形成せしめた。 かかる表面凹凸部3,4の形成されたステンレス鋼板２
は前述の諸条件による化学発色処理及び必要に応じて硬
化処理を実施して表面に青，金，赤，緑などに見える着
色皮膜を形成せしめてから、所定寸法に剪断して表面全
面が着色されたステンレス鋼板２すなわち素材を得た。 このようにして得られた素材は、第４図に示す如く既
に防眩性を有しているのであるが、この防眩性が先工程
における軽圧延により原板表面に形成された凹凸部の粗
度に影響されることを示している。同図中において、表
面粗度が１を超え12μｍの範囲にあるA,B及びＣグレー
ドの素材を、前述の条件によりこの素材表面粗度が１〜
８μｍの範囲になる程度の表面研摩することによつて、
凸部３に原板素地面６と凹部に残存着色皮膜5aが出現し
て均一な淡い光沢を有する意匠鋼板が得られた。更に、
この意匠鋼板は清浄，乾燥，剪断，梱包などの精整工程
を経由してステンレス意匠鋼板１の製品となつた。 さて、以上の如き製造工程を経て製造されるステンレ
ス意匠鋼板１及びその製造方法について、なお一層具体
的な１実施例を以下に説明する。 方向性のない十点平均粗さ（Rz）が10μｍにダル加工
された表面粗度を有する調質圧延機の750mm直径の圧延
ワークロールを用いて圧下率0.2％で軽圧延され、同粗
さで４μｍの表面凹凸部が形成された板厚1.5mmのSUS30
4ステンレス冷延鋼帯を連続着色装置及びそれに続く硬
化処理装置に通板し、硫酸とクロム酸との混酸でステン
レス冷延鋼帯の表面全面に金色の着色皮膜を均一に形成
せしめ、このステンレス冷延鋼帯を連続剪断装置で板幅
1,000×板長2,000mm寸法の鋼板２に剪断した。この剪断
されたステンレス鋼板２を垂直配置された軸の回転速度
150rpm,円板と弾力性のあるポリウレタン製合成樹脂発
泡体（厚さ:50mm）との直径600mm,合成樹脂発泡体のス
テンレス鋼板２の表面への接触面圧0.024kgf/cm2,3％濃
度の硝酸水溶液1m3中に平均粒径３μｍのAl2O3から成る
研摩剤を700g混合した乳白濁色の研摩液を軸の中空部か
ら円板及び合成樹脂発泡体の中央の開口部を通して被研
磨表面に対し12/m2供給しながらその合成樹脂発泡体
を5m/minの速度で移動させる条件で表面研摩を行つた。
この際の同一面に対する研摩回数とステンレス鋼板２の
表面色調の濃淡度（％）の関係を調査した結果、第５図
に示したような結果が得られた。この結果から明らかな
ように、この条件においては研摩回数は３〜４回程度で
ステンレス鋼板素地面６がステンレス鋼板２の面積の45
〜60％を占め、そして濃淡度で40〜70％の表面色調を帯
びることが判る。そして、この３〜４回の研摩回数で表
面研摩されたステンレス鋼板２は均一な淡い金色の中間
色を帯びた色調を有し、また適度に淡い光沢を有する防
眩性の優れたステンレス意匠鋼板であつた。 〔発明の効果〕 以上の如く本発明に係るステンレス意匠鋼板は、表面
がきつい原色と異なる中間色の淡彩色を有すると共に光
沢においてもあまり眩しさの少ない柔らかな淡い光沢を
有し、しかもこの色調と眩しさを適度に調節可能な意匠
効果の高いステンレス意匠鋼板であつて、着色ステンレ
ス鋼板の用途を広範囲に拡げることができ、また本発明
に係るステンレス意匠鋼板の製造方法は従来の着色ステ
ンレス鋼板の製造工程においてその原板として着色工程
の前にステンレス鋼板表面を方向性のない十点平均粗さ
（Rz）が10〜25μｍの範囲にある圧延ワークロールによ
り圧下率0.1〜0.6％で軽圧延する工程を組み込み且つ着
色工程の後でステンレス鋼板の表面を方向性のない１〜
８μｍの範囲の十点平均粗さ（Rz）になるまで研摩する
ことで簡単且つ容易に製造出来るものであり、その工業
的価値の非常に大きなものである。The schematic manufacturing process of the stainless steel sheet according to the present invention will be described in more detail with reference to FIG. First, after annealing and pickling stainless steel hot-rolled steel strips such as SUS304 and SUS430, which are representative steel types, cold rolling and annealing and pickling are repeated as necessary, and surface polishing is performed as necessary during the process. For example, 0.3 to 2.0 mm and a board width of 600 to 1,3
A stainless steel cold-rolled steel strip having a predetermined size within a size range of 00 mm, that is, a stainless steel plate 2 as an original plate was manufactured. Next, the 10-point average roughness (Rz) with no directivity was set to 10
Continuous light rolling at a rolling reduction of 0.1 to 0.6% by a relatively large-diameter rolling work roll (work roll of a cold rolling mill or a temper rolling mill) having a diameter of up to 25 μm, Non-directional ten point average roughness (Rz) exceeding 1 and 12
Fine surface irregularities in the range of μm were formed. Stainless steel plate 2 on which such surface irregularities 3, 4 are formed
Performs a chemical coloring process under the above-mentioned conditions and a curing process as necessary to form a colored film that looks blue, gold, red, green, etc. on the surface, and then shears it to the specified size to color the entire surface The obtained stainless steel plate 2 was obtained. The material thus obtained already has an anti-glare property as shown in FIG. 4, but this anti-glare property is based on the roughness of the irregularities formed on the surface of the original sheet by light rolling in the previous step. It indicates that it is affected by the degree. In the figure, A, B, and C grade materials having a surface roughness of more than 1 and in a range of 12 μm were obtained under the conditions described above.
By polishing the surface to the extent of 8 μm,
The original colored plate 5a appeared on the base plate 6 and the concave portions on the convex portions 3, and a design steel plate having a uniform light luster was obtained. Furthermore,
This design steel sheet was made into a stainless steel design steel sheet 1 product through refinement processes such as cleaning, drying, shearing, and packing. Now, an even more specific example of the stainless steel design steel sheet 1 manufactured through the above manufacturing steps and the manufacturing method thereof will be described below. Tensile average roughness (Rz) without directionality is lightly rolled at a rolling reduction of 0.2% using a 750 mm diameter rolling work roll of a temper rolling mill having a surface roughness dulled to 10 µm. 1.5mm thick SUS30 with 4μm uneven surface
(4) Pass the stainless steel cold-rolled steel strip through a continuous coloring device and a subsequent curing treatment device, and form a golden colored film uniformly on the entire surface of the stainless steel cold-rolled steel strip with a mixed acid of sulfuric acid and chromic acid. Strip width of cold rolled steel strip with continuous shearing device
The steel plate 2 was sheared into a steel plate 2 having a size of 1,000 × 2,000 mm in length. Rotational speed of the shaft on which the sheared stainless steel plate 2 is vertically arranged
150 rpm, diameter of a disc and elastic polyurethane synthetic resin foam (thickness: 50 mm) 600 mm, contact pressure of the synthetic resin foam on the surface of stainless steel plate 2 0.024 kgf / cm 2 , 3% concentration A milky cloudy polishing liquid containing 700 g of an abrasive made of Al 2 O 3 having an average particle size of 3 μm in 1 m 3 of an aqueous nitric acid solution was coated from the hollow portion of the shaft through the disk and the central opening of the synthetic resin foam. Surface polishing was performed under the condition that the synthetic resin foam was moved at a speed of 5 m / min while supplying 12 / m 2 to the polished surface.
As a result of examining the relationship between the number of times of polishing on the same surface and the density (%) of the surface color tone of the stainless steel plate 2, the result shown in FIG. 5 was obtained. As is clear from these results, under these conditions, the number of times of polishing is about 3 to 4 times, and the stainless steel plate base 6 has an area of 45 mm of the stainless steel plate 2.
It can be seen that it occupies ~ 60% and has a surface tone of 40-70% in shade. The stainless steel plate 2 whose surface has been polished by the number of times of polishing of 3 to 4 times has a uniform pale golden intermediate color tone, and has a moderately pale luster and excellent antiglare stainless steel design steel plate. Atsuta. [Effects of the Invention] As described above, the stainless steel decorative steel sheet according to the present invention has a soft pale luster with less glare and a lesser glare in the gloss while the surface has a steep primary color different from the primary color. It is a stainless steel design steel plate having a high design effect that can appropriately control the glare. In the manufacturing process, a step of light rolling a stainless steel sheet surface as a base plate with a rolling reduction of 0.1 to 0.6% by a rolling work roll having a non-directional ten-point average roughness (Rz) in the range of 10 to 25 μm before the coloring step. And the surface of the stainless steel plate after the coloring process
It can be easily and easily manufactured by polishing to a ten-point average roughness (Rz) in the range of 8 μm, and is of great industrial value.
第１図は本発明に係るステンレス意匠鋼板の１実施例を
示す拡大断面説明図、第２図は本発明に係るステンレス
意匠鋼板製造前の着色ステンレス鋼板（素材）の１例を
示す拡大断面説明図、第３図は本発明に係るステンレス
意匠鋼板の製造工程図、第４図は全表面に着色されたス
テンレス鋼板（素材）の防眩性を示す説明図、第５図は
着色されたステンレス鋼板（素材）表面の研摩回数によ
り出現するステンレス鋼板素地面の面積比率とステンレ
ス意匠鋼板の表面色調の濃淡度との関係を示す図であ
る。 図面中 １……ステンレス意匠鋼板 ２……ステンレス鋼板（原板） ３……表面凸部 ４……表面凹部 ５……着色皮膜 5a……研摩後の残存着色皮膜 ６……ステンレス鋼板素地面FIG. 1 is an enlarged sectional explanatory view showing one embodiment of a stainless steel sheet according to the present invention, and FIG. 2 is an enlarged sectional explanation showing one example of a colored stainless steel sheet (raw material) before manufacturing the stainless steel sheet according to the present invention. Fig. 3, Fig. 3 is a manufacturing process diagram of the stainless steel sheet according to the present invention, Fig. 4 is an explanatory view showing the anti-glare property of the colored stainless steel plate (material) on the entire surface, and Fig. 5 is a colored stainless steel. It is a figure which shows the relationship between the area ratio of the stainless steel plate base surface which appears by the frequency | count of grinding of a steel plate (material) surface, and the shading of the surface color tone of a stainless steel design steel plate. In the drawings: 1 ... Stainless steel plate 2 ... Stainless steel plate (original plate) 3 ... Surface protrusion 4 ... Surface depression 5 ... Colored film 5a ... Remaining colored film after polishing 6 ... Stainless steel plate ground
───────────────────────────────────────────────────── フロントページの続き (72)発明者 藤井 親登 山口県新南陽市野村３丁目19番46号 太 華工業株式会社内 (72)発明者 福永 英毅 山口県新南陽市野村３丁目19番46号 太 華工業株式会社内 (56)参考文献 特開 昭55−142697（ＪＰ，Ａ) 特開 昭63−213680（ＪＰ，Ａ) 特開 平１−162779（ＪＰ，Ａ) 特開 平２−133581（ＪＰ，Ａ) 実開 昭55−135054（ＪＰ，Ｕ) ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Chito Fujii 3-19-19 Nomura, Shinnanyo-shi, Yamaguchi Prefecture Within Taihua Industry Co., Ltd. (72) Eiji Fukunaga 3--19 Nomura, Shinnanyo-shi, Yamaguchi Prefecture No. 46 Inside of Taika Kogyo Co., Ltd. (56) References JP-A-54-142697 (JP, A) JP-A-63-213680 (JP, A) JP-A-1-162779 (JP, A) JP-A-2 -133581 (JP, A) Actually open 555-135054 (JP, U)
Claims (4)
ての表面が方向性のない１〜８μｍの十点平均粗さ（R
z）の微細な表面凹凸部を有し、該表面凹凸部の凹部に
硫酸とクロム酸又はクロム酸塩との混酸で着色されてい
る着色皮膜が形成されており、該着色皮膜部分以外はス
テンレス鋼板素地から成ると共に該ステンレス鋼板素地
面の面積がステンレス鋼板表面面積の10〜90％を占めて
いることを特徴とするステンレス意匠鋼板。1. A 10-point average roughness (R) of 1 to 8 μm having a non-directional surface as a design steel sheet using a stainless steel sheet as an original plate.
z) a colored film which is colored with a mixed acid of sulfuric acid and chromic acid or chromate is formed in a concave portion of the surface unevenness portion of the surface unevenness portion, and stainless steel is used for the other portions than the colored film portion A stainless steel design steel plate comprising a steel plate base, wherein the area of the stainless steel plate base occupies 10 to 90% of the surface area of the stainless steel plate.
板の原板表面を方向性のない十点平均粗さ（Rz）が10〜
25μｍの範囲にある圧延ワークロールにより圧下率0.1
〜0.6％で軽圧延し、次にこれを硫酸とクロム酸又はク
ロム酸塩との混酸で処理して表面全面に着色皮膜を形成
せしめ、しかる後に着色された該ステンレス鋼板の表面
を方向性のない１〜８μｍの範囲の十点平均粗さ（Rz）
になるまで研摩することを特徴とするステンレス意匠鋼
板の製造方法。2. The surface of a cold-rolled, annealed and pickled stainless steel sheet having a ten-point average roughness (Rz) of 10 to 10 with no directionality.
Roll reduction work roll in the range of 25μm, reduction rate 0.1
Lightly rolled at ~ 0.6% and then treated with a mixed acid of sulfuric acid and chromic acid or chromate to form a colored film on the entire surface. 10 point average roughness (Rz) in the range of 1 to 8 μm
A method for producing a stainless steel plate with a decorative design, characterized in that the steel plate is polished until the steel plate becomes a stainless steel plate.
処理して表面全面に着色皮膜を形成せしめたステンレス
鋼板を硫酸又はリン酸とクロム酸との混酸で陰極電解処
理する硬化処理を施し、しかる後に該ステンレス鋼板の
表面を方向性のない１〜８μｍの範囲の十点平均粗さ
（Rz）になるまで研摩する請求項２に記載のステンレス
意匠鋼板の製造方法。3. A hardening treatment in which a stainless steel sheet having a colored film formed on the entire surface by treating with a mixed acid of sulfuric acid and chromate or chromate is subjected to a cathodic electrolytic treatment with a mixed acid of sulfuric acid or phosphoric acid and chromic acid. The method according to claim 2, wherein the surface of the stainless steel sheet is polished to a ten-point average roughness (Rz) in a range of 1 to 8 µm with no directivity.
れたステンレス鋼板又は表面全面に着色皮膜を形成せし
めた後に硬化処理を施して着色されたステンレス鋼板の
表面を方向性のない１〜８μｍの範囲の十点平均粗さ
（Rz）になるまで研摩する操作を、50〜300rpmの回転速
度で回転せしめられる軸に固定されている直径が200〜
1,000mmの円板に厚さが５〜100mmの合成樹脂発泡体又は
不織布を当着したものをその合成樹脂発泡体又は不織布
が着色された該ステンレス鋼板の表面に0.01〜0.04kgf/
cm2の接触面圧となるように押し付けて接触させ、７％
以下の濃度の硝酸水溶液1m3中に１〜５μｍの粒度の研
摩剤を混合した研摩液を、軸の中空部と円板及び円板に
当着された合成樹脂発泡体中央の開口部とを通して被研
摩表面に対し５〜20/m2供給しながら、その合成樹脂
発泡体を１〜10m/minの速度で移動させることによつて
行う請求項２又は３に記載のステンレス意匠鋼板の製造
方法。4. A colored stainless steel sheet having a colored film formed over the entire surface or a colored stainless steel sheet formed by forming a colored film over the entire surface and then subjected to a hardening treatment so that the surface of the colored stainless steel sheet has a directivity of 1 to 8 μm. The operation of grinding until the ten-point average roughness (Rz) is in the range of 50 to 300 rpm is performed.
A disk of 1,000 mm having a thickness of 5 to 100 mm made of synthetic resin foam or non-woven fabric is applied to the surface of the stainless steel sheet whose synthetic resin foam or non-woven fabric is colored 0.01 to 0.04 kgf /
7% by pressing to make contact surface pressure of cm 2
A polishing liquid obtained by mixing an abrasive having a particle size of 1 to 5 μm in 1 m 3 of a nitric acid aqueous solution having the following concentration is passed through the hollow portion of the shaft, the disk, and the central opening of the synthetic resin foam attached to the disk. while 5 to 20 / m 2 supplied to the polished surface, the production method of the stainless design steel sheet according to claim 2 or 3 made by a moving its synthetic resin foam at a rate of 1 to 10 m / min .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12413489A JP2727356B2 (en) | 1989-05-19 | 1989-05-19 | Stainless steel plate and its manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12413489A JP2727356B2 (en) | 1989-05-19 | 1989-05-19 | Stainless steel plate and its manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02305974A JPH02305974A (en) | 1990-12-19 |
| JP2727356B2 true JP2727356B2 (en) | 1998-03-11 |
Family
ID=14877765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12413489A Expired - Lifetime JP2727356B2 (en) | 1989-05-19 | 1989-05-19 | Stainless steel plate and its manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2727356B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20200063425A (en) * | 2018-11-27 | 2020-06-05 | 한국생산기술연구원 | Method of fabricating metal substrate with color comprising metalic luster and the metal substrate thereby |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002283072A (en) * | 2001-03-28 | 2002-10-02 | Kimmon Mfg Co Ltd | Etched stainless steel plate |
| EP3501680B1 (en) | 2017-01-31 | 2023-12-27 | Abel Co., Ltd. | Colored stainless steel plate, colored stainless steel coil and manufacturing method thereof |
| CN108838234B (en) * | 2018-07-10 | 2022-09-02 | 福建甬金金属科技有限公司 | Production process of high-polishing-property stainless steel 8K plate |
-
1989
- 1989-05-19 JP JP12413489A patent/JP2727356B2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20200063425A (en) * | 2018-11-27 | 2020-06-05 | 한국생산기술연구원 | Method of fabricating metal substrate with color comprising metalic luster and the metal substrate thereby |
| KR102150888B1 (en) * | 2018-11-27 | 2020-09-04 | 한국생산기술연구원 | Method of fabricating metal substrate with color comprising metalic luster and the metal substrate thereby |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02305974A (en) | 1990-12-19 |
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