JPH04259384A - Surface film hardening treatment of stainless steel - Google Patents
Surface film hardening treatment of stainless steelInfo
- Publication number
- JPH04259384A JPH04259384A JP3922991A JP3922991A JPH04259384A JP H04259384 A JPH04259384 A JP H04259384A JP 3922991 A JP3922991 A JP 3922991A JP 3922991 A JP3922991 A JP 3922991A JP H04259384 A JPH04259384 A JP H04259384A
- Authority
- JP
- Japan
- Prior art keywords
- stainless steel
- water glass
- glass ceramic
- ceramic coating
- coating material
- 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 20
- 239000010935 stainless steel Substances 0.000 title claims abstract description 20
- 239000011248 coating agent Substances 0.000 claims abstract description 27
- 235000019353 potassium silicate Nutrition 0.000 claims abstract description 20
- 238000005524 ceramic coating Methods 0.000 claims abstract description 19
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000000463 material Substances 0.000 claims abstract description 18
- 238000004040 coloring Methods 0.000 claims abstract description 16
- 239000002241 glass-ceramic Substances 0.000 claims abstract description 16
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 230000003647 oxidation Effects 0.000 claims abstract description 11
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 11
- 229910052910 alkali metal silicate Inorganic materials 0.000 claims abstract description 7
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims description 17
- 238000003672 processing method Methods 0.000 claims 1
- 238000000576 coating method Methods 0.000 abstract description 12
- 238000010438 heat treatment Methods 0.000 abstract description 2
- 238000004090 dissolution Methods 0.000 abstract 1
- 239000010408 film Substances 0.000 description 18
- 238000005406 washing Methods 0.000 description 8
- 238000005299 abrasion Methods 0.000 description 7
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 6
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 4
- 229910052804 chromium Inorganic materials 0.000 description 4
- 239000011651 chromium Substances 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 238000005238 degreasing Methods 0.000 description 2
- 238000007602 hot air drying Methods 0.000 description 2
- 239000000976 ink Substances 0.000 description 2
- 239000003550 marker Substances 0.000 description 2
- 235000014593 oils and fats Nutrition 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229910002012 Aerosil® Inorganic materials 0.000 description 1
- 241000726096 Aratinga Species 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910003556 H2 SO4 Inorganic materials 0.000 description 1
- 229910003944 H3 PO4 Inorganic materials 0.000 description 1
- 239000004111 Potassium silicate Substances 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052913 potassium silicate Inorganic materials 0.000 description 1
- NNHHDJVEYQHLHG-UHFFFAOYSA-N potassium silicate Chemical compound [K+].[K+].[O-][Si]([O-])=O NNHHDJVEYQHLHG-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-OUBTZVSYSA-N potassium-40 Chemical group [40K] ZLMJMSJWJFRBEC-OUBTZVSYSA-N 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
Landscapes
- Ceramic Products (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Abstract
Description
【０００１】0001
【産業上の利用分野】本発明は、金属特にステンレス材
料を酸化発色処理して着色した後の表面を硬化処理する
方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for hardening the surface of a metal, particularly a stainless steel material, which has been colored by oxidation coloring.
【０００２】0002
【従来の技術】従来より、一般的に実施されているステ
ンレス材料の酸化発色処理による着色被膜はおよそ０．
１〜０．３μｍと薄膜であるため、その酸化発色処理し
た品物表面は摩擦又は摩耗によって傷が付き易い。BACKGROUND OF THE INVENTION Conventionally, colored coatings formed by oxidation coloring treatment of stainless steel materials, which have been generally carried out, are approximately 0.0.
Since it is a thin film of 1 to 0.3 μm, the surface of the product subjected to the oxidation coloring treatment is easily scratched by friction or abrasion.
【０００３】そのために、酸化発色処理した表面の摩擦
又は摩耗による傷発生の防止に関しては、例えばインコ
法が知られており、該インコ法では無水クロム酸とリン
酸の混合水溶液中で電解処理することによりクロム系皮
膜を形成し、酸化発色処理した表面の硬化処理を図って
いる。[0003] For this reason, for example, the Inco method is known for preventing scratches caused by friction or abrasion on surfaces that have been subjected to oxidation coloring treatment, and in this Inco method, electrolytic treatment is carried out in a mixed aqueous solution of chromic anhydride and phosphoric acid. By doing this, a chromium-based film is formed and the oxidized color-treated surface is hardened.
【０００４】0004
【発明が解決しようとする課題】しかしながら、前記従
来例におけるクロム系皮膜は、酸化発色処理した皮膜よ
りも耐摩耗性及び耐傷性に優れているが、それでも充分
ではなく、やはりその表面は摩擦又は摩耗現象によって
傷が付き易いと言う問題点を有している。[Problems to be Solved by the Invention] However, although the chromium-based film in the conventional example has better abrasion resistance and scratch resistance than the oxidized coloring film, it is still not sufficient, and its surface is still susceptible to friction and scratches. It has the problem of being easily scratched due to abrasion phenomena.
【０００５】更に、クロム系皮膜は、それ自体の透明度
が低く且つ特有の金属色を有しているため、先の酸化発
色処理した着色被膜の発色を阻害し、異質のものにして
しまうと言う問題点も有している。Furthermore, since the chromium-based film itself has low transparency and a unique metallic color, it inhibits the color development of the colored film that was previously subjected to the oxidation coloring treatment, making it different. There are also some problems.
【０００６】[0006]
【問題点を解決するための手段】本発明は、ステンレス
材料を酸化発色処理して着色した後、水ガラス系セラミ
ックコーティング剤を塗布し焼付けることを特徴とする
ステンレスの表面硬膜処理方法であり、水ガラス系セラ
ミックコーティング剤はアルカリ珪酸塩と超微粒子状シ
リカを主成分とし、アルカリ珪酸塩１００重量部と超微
粒子状シリカ５〜１００重量部との加熱溶解生成物に水
を１００〜６００重量部加えた透明無機質被覆剤であり
、焼付温度は１５０〜２５０℃であるステンレスの表面
硬膜処理方法である。[Means for Solving the Problems] The present invention is a method for surface hardening of stainless steel, which is characterized in that the stainless steel material is colored by oxidation coloring treatment, and then a water glass-based ceramic coating agent is applied and baked. The water glass ceramic coating agent is mainly composed of alkali silicate and ultrafine silica, and is made by adding 100 to 600 parts of water to a heated solution of 100 parts by weight of alkali silicate and 5 to 100 parts by weight of ultrafine silica. This is a method for surface hardening of stainless steel, in which a transparent inorganic coating agent is added in parts by weight, and the baking temperature is 150 to 250°C.
【０００７】[0007]
【作用】ステンレス材料を一般的に実施されている酸化
発色処理による着色皮膜処理した後乾燥する。その後水
ガラス系セラミックコーティング剤（商品名パルセラコ
ート）をスプレー法にて塗布し、所定の温度（１５０〜
２５０℃）で約２０分間焼付けを行い、酸化発色処理皮
膜の上に密着性の優れた硬化塗膜が形成され、その硬化
塗膜厚は１〜５μである。そして、この塗膜は水ガラス
系セラミックであるため、硬度（鉛筆硬度９Ｈ）がある
ので塗膜面は耐摩耗性及び耐傷性に優れている。また塗
膜面は親水性（接触角１０°以下）を持っているので付
着した指紋、マジックインキ、油脂等の汚れの除去性が
良好なものとなるのである。因にこの処理工程は概ね次
の通りである。
ステンレス材料→酸化発色処理→水洗→乾燥→水ガラス
系セラミックコーティング剤塗布→焼付[Operation] Stainless steel material is treated with a colored film by a commonly practiced oxidation coloring treatment and then dried. After that, a water glass-based ceramic coating agent (trade name: Pulsera Coat) is applied by spraying and maintained at a predetermined temperature (150~150℃).
Baking is performed at 250 DEG C. for about 20 minutes, and a cured coating film with excellent adhesion is formed on the oxidized color treatment film, and the thickness of the cured coating film is 1 to 5 .mu.m. Since this coating film is made of water glass ceramic, it has hardness (pencil hardness of 9H), so the coating surface has excellent abrasion resistance and scratch resistance. Furthermore, since the coating surface has hydrophilic properties (contact angle of 10° or less), it is easy to remove adhering stains such as fingerprints, marker ink, and oils and fats. Incidentally, this processing step is generally as follows. Stainless steel material → Oxidation coloring treatment → Washing with water → Drying → Application of water glass ceramic coating agent → Baking
【０００８】[0008]
【実施例】次に本発明の表面硬膜処理方法を理解するた
め、幾つかの具体的実施例（コーティング剤の塗膜厚さ
と、焼付温度とを夫々変えたもの）と比較例とを挙げて
説明する。[Examples] Next, in order to understand the surface hardening treatment method of the present invention, some specific examples (in which the coating thickness of the coating agent and the baking temperature were changed respectively) and comparative examples are given. I will explain.
【０００９】１．ステンレス板（ＳＵＳ‐３０４、２０
０×３００×１ｍｍ）は下記工程で着色処理を行った。
脱脂（＊１）→水洗→着色処理（＊２）→水洗→純水洗
→熱風乾燥
＊１；ＦＣ‐４３６０〔日本パーカライジング（株）〕
、２％で建浴、６０℃×１０分浸漬。
＊２；薬品（試薬１級のＨ２ ＳＯ４ を５００ｇ／ｌ
＋ＣｒＯ３ を２５０ｇ／ｌ で建浴）、８５℃×１
５分浸漬。1. Stainless steel plate (SUS-304, 20
0 x 300 x 1 mm) was colored in the following steps. Degreasing (*1) → Water washing → Coloring treatment (*2) → Water washing → Pure water washing → Hot air drying *1; FC-4360 [Nippon Parkerizing Co., Ltd.]
, 2% bath, soaked at 60°C for 10 minutes. *2; Chemical (500 g/l of H2 SO4 of first class reagent)
+CrO3 at 250g/l), 85℃ x 1
Soak for 5 minutes.
【００１０】２．上記で作成した試験板に水ガラス系セ
ラミックコーティング剤をスプレー法で塗布し、１８０
〜２３０℃で２０分間の焼付けを行った。塗膜厚は１〜
５μである。工程は着色処理済み板→水ガラス系セラミ
ックコーティング剤塗布（＊３）→焼付（＊４）。
＊３；水ガラス系セラミックコーティング剤［ケイ酸カ
リ１００重量部と超微粒子状シリカ（日本アエロジル社
製）４０重量部とを水４５０重量部に加えて９０〜１０
０℃で加熱溶解して得た透明無機質被覆剤］、膜厚１〜
５μ。
＊４；室温（２３℃） １０分→その後１８０〜２３
０℃×２０分焼付。2. A water glass-based ceramic coating agent was applied to the test plate prepared above using a spray method.
Baking was performed at ~230°C for 20 minutes. The coating thickness is 1~
It is 5μ. The process is a colored plate → application of water glass ceramic coating (*3) → baking (*4). *3; Water glass ceramic coating agent [adding 100 parts by weight of potassium silicate and 40 parts by weight of ultrafine particulate silica (manufactured by Nippon Aerosil Co., Ltd.) to 450 parts by weight of water to form a 90 to 10
Transparent inorganic coating obtained by heating and melting at 0°C], film thickness 1~
5μ. *4; Room temperature (23℃) 10 minutes → then 180-23
Bake at 0℃ for 20 minutes.
【００１１】[0011]
【比較例】ステンレス板（ＳＵＳ３０４、２００×３０
０×１ｍｍ）は下記工程で着色処理を行った。[Comparative example] Stainless steel plate (SUS304, 200 x 30
0x1 mm) was colored in the following steps.
【００１２】脱脂（＊１）→水洗→着色処理（＊２）水
洗→硬化処理（＊５）→水洗→純水洗→熱風乾燥＊１，
＊２；実施例と同じ条件で実施する。
＊５；インコ法、薬品（試薬１級のＣｒＯ３ を２５０
ｇ／ｌ ＋（７５％）
Ｈ３ ＰＯ４ を２．５ｇ／ｌ で建浴）、２０℃×５
分電解する。
電流密度０．５Ａ／ｄｍ２ 。[0012] Degreasing (*1) → Water washing → Coloring treatment (*2) Water washing → Hardening treatment (*5) → Water washing → Pure water washing → Hot air drying *1,
*2; Conducted under the same conditions as in the example. *5; Parakeet method, chemicals (reagent 1st grade CrO3 at 250
g/l + (75%) H3 PO4 bath prepared at 2.5 g/l), 20°C x 5
Electrolyze. Current density 0.5A/dm2.
【００１３】試験方法
塗膜厚；断面写真法で実施する。
鉛筆硬度；三菱鉛筆ユニを使用する。
耐摩耗性；落差摩耗試験法にて実施する。
４００μのＡＬ２ Ｏ３ 粒、使用量１０リットル、落
差８５ｃｍ。セラミックコーティング塗膜面、硬化処理
の異常を目視にて判定する。
指紋除去性；表面に付着した指紋部をティシュペーパー
にてふき取る。Test method Coating film thickness: Conducted by cross-sectional photographic method. Pencil hardness: Use Mitsubishi Pencil Uni. Abrasion resistance: Performed by drop abrasion test method. 400μ AL2 O3 grains, usage amount 10 liters, head 85cm. Visually determine abnormalities in the ceramic coating surface and curing process. Fingerprint removability: Wipe off the fingerprints attached to the surface with tissue paper.
【００１４】前記に基づいて処理をした実施例１〜３と
比較例とを夫々試験した結果を表１に示す。Table 1 shows the results of testing Examples 1 to 3 and Comparative Example, which were treated based on the above.
【００１５】[0015]
【００１６】尚、前記の説明はステンレス板の処理につ
いてであるが、本発明の表面硬膜処理方法はこれに限定
されるものではなく、例えば着色チタン材料、着色アル
ミニウム材料、銅材料にも適用できる。Although the above explanation relates to the treatment of stainless steel plates, the surface hardening treatment method of the present invention is not limited to this, and can also be applied to colored titanium materials, colored aluminum materials, and copper materials, for example. can.
【００１７】[0017]
【発明の効果】以上、説明したように本発明に係るステ
ンレスの表面硬膜処理方法は、ステンレス材料を酸化発
色処理して着色した後、水ガラス系セラミックコーティ
ング剤を塗布し焼付けるものであるため、酸化発色処理
した着色皮膜の上に無機質の透明な硬化皮膜が形成され
るので、その硬度はクロム系の皮膜に比べて著しく高い
ものとなり、耐摩耗性及び耐傷性に優れた表面硬膜処理
塗膜が得られると言う優れた効果を奏する。[Effects of the Invention] As explained above, the method for surface hardening of stainless steel according to the present invention involves coloring the stainless steel material by oxidation coloring treatment, and then applying a water glass ceramic coating agent and baking it. As a result, an inorganic transparent hardened film is formed on top of the oxidized colored film, and its hardness is significantly higher than that of chromium-based films, resulting in a surface hardening film with excellent wear and scratch resistance. It has the excellent effect of providing a treated coating film.
【００１８】水ガラス系セラミックコーティング剤はア
ルカリ珪酸塩と超微粒子状シリカを主成分とした透明無
機質被覆剤であり、焼付温度が１５０〜２５０℃で充分
であることから、その処理工程が容易であり、しかも焼
付けられた硬化皮膜は親水性があるため、付着した指紋
、マジックインキ、油脂等の除去性が良好で汚れが固着
し難いと言う種々の優れた効果も奏する。The water glass ceramic coating agent is a transparent inorganic coating agent mainly composed of alkali silicate and ultrafine silica particles, and since the baking temperature is sufficient at 150 to 250°C, the processing process is easy. Moreover, since the baked hardened film is hydrophilic, it has various excellent effects such as good removability of attached fingerprints, marker ink, oils and fats, and resistance to stains.
Claims (4)
色した後、水ガラス系セラミックコーティング剤を塗布
し焼付けることを特徴とするステンレスの表面硬膜処理
方法。1. A method for surface hardening of stainless steel, which comprises coloring the stainless steel material by oxidation coloring treatment, and then applying and baking a water glass ceramic coating agent.
はアルカリ珪酸塩と超微粒子状シリカを主成分とし、焼
付温度は１５０〜２５０℃であることを特徴とする請求
項１に記載のステンレスの表面硬膜処理方法。2. The surface hardening film of stainless steel according to claim 1, wherein the water glass ceramic coating agent mainly contains alkali silicate and ultrafine silica, and the baking temperature is 150 to 250°C. Processing method.
は、アルカリ珪酸塩１００重量部と超微粒子状シリカ５
〜１００重量部との加熱溶解生成物に水を１００〜６０
０重量部加えた透明無機質被覆剤である請求項１又は２
に記載のステンレスの表面硬膜処理方法。3. The water glass ceramic coating agent comprises 100 parts by weight of an alkali silicate and 5 parts by weight of ultrafine silica.
Add 100 to 60 parts of water to the heated dissolved product with ~100 parts by weight.
Claim 1 or 2, which is a transparent inorganic coating agent containing 0 parts by weight.
The surface hardening treatment method for stainless steel described in .
を塗布して形成される硬化塗膜厚は１〜５μである請求
項１又は２に記載のステンレスの表面硬膜処理方法。4. The method for surface hardening of stainless steel according to claim 1, wherein the thickness of the cured film formed by applying the water glass ceramic coating agent is 1 to 5 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3922991A JPH04259384A (en) | 1991-02-08 | 1991-02-08 | Surface film hardening treatment of stainless steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3922991A JPH04259384A (en) | 1991-02-08 | 1991-02-08 | Surface film hardening treatment of stainless steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04259384A true JPH04259384A (en) | 1992-09-14 |
Family
ID=12547298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3922991A Pending JPH04259384A (en) | 1991-02-08 | 1991-02-08 | Surface film hardening treatment of stainless steel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04259384A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008144259A (en) * | 2006-12-11 | 2008-06-26 | Tsukiboshi Art Kogyo Kk | Surface treated steel sheet having excellent stain resistance and fingerprint resistance |
| JP2019112701A (en) * | 2017-12-26 | 2019-07-11 | 株式会社アサヒメッキ | Low-glossiness chemical coloring stainless steel processed product coated with transparent coating film, and method of manufacturing the same |
-
1991
- 1991-02-08 JP JP3922991A patent/JPH04259384A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008144259A (en) * | 2006-12-11 | 2008-06-26 | Tsukiboshi Art Kogyo Kk | Surface treated steel sheet having excellent stain resistance and fingerprint resistance |
| JP2019112701A (en) * | 2017-12-26 | 2019-07-11 | 株式会社アサヒメッキ | Low-glossiness chemical coloring stainless steel processed product coated with transparent coating film, and method of manufacturing the same |
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