JPH02170984A - Surface treatment for titanium or titanium alloy and titanium material or titanium alloy material - Google Patents
Surface treatment for titanium or titanium alloy and titanium material or titanium alloy materialInfo
- Publication number
- JPH02170984A JPH02170984A JP32386488A JP32386488A JPH02170984A JP H02170984 A JPH02170984 A JP H02170984A JP 32386488 A JP32386488 A JP 32386488A JP 32386488 A JP32386488 A JP 32386488A JP H02170984 A JPH02170984 A JP H02170984A
- Authority
- JP
- Japan
- Prior art keywords
- titanium
- titanium alloy
- solution
- concentration
- film
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
- C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
- C23C22/34—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing fluorides or complex fluorides
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- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Treatment Of Metals (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明はチタンまたはチタン合金の表面に着色被膜を形
成する表面処理方法及び表面にパターン形成する方法に
関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a surface treatment method for forming a colored film on the surface of titanium or a titanium alloy, and a method for forming a pattern on the surface.
従来チタンまたはチタン合金の着色法として、陽極酸化
法及びフッ化水素酸水溶液に浸漬処理する方法（特開昭
５８−２３４６９）が知られている。陽極酸化法はホウ
酸アンモニウムリン酸等の電解液をエチレングリコール
等の溶媒に加えた溶液にチタンまたはチタン合金を浸漬
し、定電圧電解してその表面に着色被膜を形成する方法
である。Conventionally, known methods for coloring titanium or titanium alloys include an anodizing method and a method of immersion in a hydrofluoric acid aqueous solution (Japanese Patent Laid-Open No. 58-23469). The anodic oxidation method is a method in which titanium or a titanium alloy is immersed in a solution prepared by adding an electrolytic solution such as ammonium borate phosphate to a solvent such as ethylene glycol, and electrolysis is performed at a constant voltage to form a colored film on the surface.
また、フッ化水素酸水溶液に浸漬処理する方法は、予め
表面を清浄化したチタンをフッ化水素１重量パーセント
以下、作業上の安全性等の点から好ましくは０．５重量
％以下の低濃度のフッ化水素酸水溶液中に短時間浸漬す
ることにより、チタンの表面に黒色被膜を形成する方法
である。In addition, the method of immersing titanium in a hydrofluoric acid aqueous solution is a method in which titanium whose surface has been cleaned in advance is treated at a low concentration of hydrogen fluoride of 1% by weight or less, preferably 0.5% by weight or less from the viewpoint of operational safety, etc. This method forms a black film on the surface of titanium by immersing it in an aqueous solution of hydrofluoric acid for a short time.
ところが、上述した陽極酸化法ではチタンまたはチタン
合金の表面に種々な色彩の着色被膜が形成可能であるに
もかかわらず、黒色の被膜は得られていない。また、電
解を行うための装置が必要である。However, although colored films of various colors can be formed on the surface of titanium or titanium alloy by the above-mentioned anodic oxidation method, a black film has not been obtained. Additionally, equipment for performing electrolysis is required.
浸漬処理する方法では処理液にフッ化水素を用いている
が、この薬剤は毒性が大変強く、刺激臭を有しているた
めに取扱が危険である。また、作業上の安全性等の点か
らフッ化水素の濃度が０．５重世％以下のフッ化水素酸
水溶液を用いることが好ましいとされているが、濃度が
低過ぎるために処理液の劣化変動が激しく、その結果処
理液の耐久性が乏しくなり実用化する上で問題となって
いる。The immersion treatment method uses hydrogen fluoride as the treatment solution, but this chemical is highly toxic and has a pungent odor, making it dangerous to handle. In addition, from the viewpoint of work safety, it is said that it is preferable to use a hydrofluoric acid aqueous solution with a hydrogen fluoride concentration of 0.5% or less, but since the concentration is too low, The deterioration fluctuations are severe, and as a result, the durability of the treatment liquid becomes poor, which poses a problem for practical use.
本発明は斯かる事情に鑑みてなされたものであり、チタ
ンまたはチタン合金の表面に着色被膜を形成させるため
の処理液としてホウフッ化水素酸溶液または酸性フッ化
カリウム溶液を用いることにより、作業上の安全性が向
上し、しかも容易に均質な黒褐色若しくは黒色の被膜が
得られるチタンまたはチタン合金の表面処理方法と該方
法を利用して得られる黒褐色若しくは黒色を基調とした
チタンまたはチタン合金のパターンの形成方法と表面に
前記パターンが形成されたチタン材またはチタン合金材
とを提供することを目的とする。The present invention has been made in view of the above circumstances, and uses a fluoroboric acid solution or an acidic potassium fluoride solution as a treatment liquid for forming a colored film on the surface of titanium or titanium alloy, thereby improving work efficiency. A method for surface treatment of titanium or titanium alloy, which improves safety and easily obtains a homogeneous dark brown or black coating, and a pattern of titanium or titanium alloy based on dark brown or black obtained using the method. It is an object of the present invention to provide a method for forming a titanium material or a titanium alloy material having the pattern formed on its surface.
（課題を解決するための手段〕
本発明に斯かるチタンまたはチタン合金の表面処理方法
は、処理液と反応させて、その表面に着色被膜を形成す
るチタンまたはチタン合金の表面処理方法において、前
記処理液にホウフッ化水素酸溶液または酸性フッ化カリ
ウム溶液を用いることを特徴とし、好ましくは前記ホウ
フッ化水素酸溶液の濃度を０．５〜１５重量％とし、前
記酸性フッ化カリウム溶液の濃度を０．０５〜１０重世
％とする。(Means for Solving the Problems) The method for surface treatment of titanium or titanium alloy according to the present invention includes the method for surface treatment of titanium or titanium alloy, which forms a colored film on the surface of titanium or titanium alloy by reacting with a treatment liquid. It is characterized in that a fluoroboric acid solution or an acidic potassium fluoride solution is used as the treatment liquid, preferably the concentration of the fluoroboric acid solution is 0.5 to 15% by weight, and the concentration of the acidic potassium fluoride solution is preferably 0.5 to 15% by weight. 0.05 to 10%.
そして、チタンまたはチタン合金のパターン形成方法は
、チタンまたはチタン合金の表面にレジストインキを用
いて所定パターンを形成し、レジストインキ非形成部分
に請求項１記載の表面処理を行い、次いで前記レジスト
インキを除去することを特徴とし、前記パターン形成方
法により形成された着色被膜を表面に有するチタン材ま
たはチタン合金材が得られることを特徴とする。The pattern forming method for titanium or titanium alloy includes forming a predetermined pattern on the surface of titanium or titanium alloy using resist ink, performing the surface treatment according to claim 1 on the portion where resist ink is not formed, and then applying the resist ink to the surface of titanium or titanium alloy. The method is characterized in that a titanium material or a titanium alloy material having a colored film formed by the pattern forming method on its surface is obtained.
（作用〕
本発明のチタンまたはチタン合金表面処理方法にあって
はチタンまたはチタン合金の表面に着色被膜を形成する
ための処理液としてホウフッ化水素酸溶液または酸性フ
ッ化カリウム溶液を好ましくは前者を０．５〜１５重量
％、後者を０．０５〜ｌＯ重量％用いるので、安全で容
易に均質な黒褐色または黒色の被膜が得られる。また、
チタンまたはチタン合金の表面にレジストインキをパタ
ーン状に印刷し、レジストインキ非形成部分に上述した
処理液を用いて表面処理を行い、次いで前記レジストイ
ンキを除去するので、チタンまたはチタン合金表面に黒
褐色または黒色を基調としたパターンが形成でき、該パ
ターンが形成されたチタン材またはチタン合金材が得ら
れる。(Function) In the titanium or titanium alloy surface treatment method of the present invention, a borofluoric acid solution or an acidic potassium fluoride solution is preferably used as the treatment liquid for forming a colored film on the surface of titanium or titanium alloy. Since the latter is used in an amount of 0.5 to 15% by weight and 0.05 to 10% by weight, a homogeneous dark brown or black coating can be obtained safely and easily.
Resist ink is printed in a pattern on the surface of titanium or titanium alloy, the areas where resist ink is not formed are subjected to surface treatment using the above-mentioned treatment liquid, and then the resist ink is removed, so that a blackish brown color appears on the surface of titanium or titanium alloy. Alternatively, a pattern based on black can be formed, and a titanium material or titanium alloy material on which the pattern is formed can be obtained.
以下本発明方法を具体的に説明する。まず請求項１．２
及び３記載のチタンまたはチタン合金の表面処理方法に
ついて述べる。The method of the present invention will be specifically explained below. First, claim 1.2
The method for surface treatment of titanium or titanium alloy described in 3 and 3 will be described below.
所定の大きさのチタン板またはチタン合金板の表面を脱
脂、酸洗いして清浄にし、好ましくは０．５〜１５重量
％のホウフッ化水素酸または好ましくは０．０５〜１０
重量％の酸性フッ化水素酸の水溶液に浸漬温度Ｏ″Ｃ〜
１００°Ｃの範囲で浸漬する。そして、その状態で２〜
３分経過させた後取り出し、水洗いして乾燥すると、浸
漬時間に応じて黒褐色または黒色の被膜がチタン板また
はチタン合金板の表面に形成される。The surface of a titanium plate or titanium alloy plate of a predetermined size is degreased and cleaned by pickling, preferably 0.5 to 15% by weight of borofluoric acid or preferably 0.05 to 10% by weight.
Immersion temperature in an aqueous solution of acidic hydrofluoric acid of % by weight O″C~
Immerse at 100°C. And in that state 2~
When the titanium plate or titanium alloy plate is taken out after 3 minutes, washed with water, and dried, a dark brown or black film is formed on the surface of the titanium plate or titanium alloy plate depending on the immersion time.
なお、請求項２記載の本発明方法において処理液に用い
るホウフッ化水素酸の濃度を０．５〜１５重量％の範囲
としたのは、０．５重世％以下であるとチタンまたはチ
タン合金に形成された被膜が発色しないためであり、１
５重量％以上であるとチタンまたはチタン合金への酸化
被膜の形成速度よりそれを溶解する反応速度が速くなる
ため先にチタンまたはチタン合金が溶解し、黒色被膜は
形成されない。また請求項３記載の本発明方法において
処理液に用いる酸性フッ化カリウムの濃度を０４０５〜
１０重量％の範囲としたのは前述と同様の理由であり、
０．０５重世％以下では形成された被膜が発色せず、１
０重量％以上ではチタンまたはチタン合金との溶解反応
が生じてしまうためである。In addition, in the method of the present invention according to claim 2, the concentration of fluoroboric acid used in the treatment liquid is in the range of 0.5 to 15% by weight. This is because the film formed on 1 does not develop color.
If the amount is 5% by weight or more, the reaction rate for dissolving the oxide film on titanium or titanium alloy will be faster than the rate at which it is formed, so the titanium or titanium alloy will dissolve first and no black film will be formed. Further, in the method of the present invention according to claim 3, the concentration of acidic potassium fluoride used in the treatment liquid is 0405 to
The reason for setting the range to 10% by weight is the same as mentioned above.
If it is less than 0.05%, the formed film will not develop color, and 1
This is because if it exceeds 0% by weight, a dissolution reaction with titanium or titanium alloy will occur.
さらに本実施例では形成された被膜が自由に発色するよ
う浸漬温度を０°Ｃ−１００’Ｃの範囲としたが、好ま
しくは２０〜４０°Ｃの範囲であり、より短時間でしか
も操作上より安全に被膜が形成できる。Furthermore, in this example, the immersion temperature was set in the range of 0°C to 100'C so that the formed film would develop color freely, but it is preferably in the range of 20 to 40°C, which is faster and easier to operate. A film can be formed more safely.
次に、上述した方法でチタン板に被膜を形成させた２例
について述べる。Next, two examples in which a film was formed on a titanium plate using the method described above will be described.
まず、１例として処理液に酸性フッ化カリウム溶液を用
いた場合について述べる。２重量％の濃度酸性フッ化カ
リウム溶液に１５ｍｇ＋ Ｘ ７０ｍ＋＋＋ Ｘ Ｏ，
４ｔのチタン板を２０°Ｃで３分間浸漬する。そして、
溶液からチタン板を取り出し、水洗いした後、乾燥する
。これによりチタン板に黒色被膜が形成される。First, as an example, a case will be described in which an acidic potassium fluoride solution is used as the processing liquid. 15 mg+
A 4t titanium plate is immersed at 20°C for 3 minutes. and,
The titanium plate is removed from the solution, washed with water, and then dried. This forms a black film on the titanium plate.
次に他側として処理液にホウフッ化水素酸溶液を用いた
場合について述べる。Next, as the other side, a case where a fluoroboric acid solution is used as the processing liquid will be described.
２重量％の濃度のホウフッ化水素酸溶液に１５ｍｍＸ
７０ｍｍ Ｘ １４０ｔのチタン板２枚を２０″Ｃで一
方は２分間、他方は３分間浸漬する。そして、溶液から
夫々チタン仮を取り出し、水洗いした後乾燥する。15 mm
Two titanium plates measuring 70mm x 140t are immersed at 20''C for 2 minutes and the other for 3 minutes.Then, each temporary titanium plate is taken out of the solution, washed with water, and then dried.
これにより２分間浸漬したチタン板には黒褐色の被膜が
、３分間浸漬したチタン板には黒色の被膜が夫々形成さ
れる。As a result, a blackish-brown coating is formed on the titanium plate immersed for 2 minutes, and a black coating is formed on the titanium plate immersed for 3 minutes.
なお、本実施例ではチタン板またはチタン合金板を浸漬
するための処理液として用いるホウフッ化水素酸溶液ま
たは酸性フッ化カリウム溶液の濃度を前者は０．５〜１
５重景％重量囲とし、後者は０．０５〜ｌＯ重量％の範
囲としているが、前述した濃度は好ましい範囲であり、
処理液の温度または浸漬する時間によ゛って前記範囲外
の濃度を用いることができるのは言うまでもない。In this example, the concentration of the borohydrofluoric acid solution or acidic potassium fluoride solution used as the treatment liquid for immersing the titanium plate or titanium alloy plate was 0.5 to 1.
The latter is in the range of 0.05 to 10% by weight, but the above-mentioned concentration is a preferable range,
Needless to say, concentrations outside the above range can be used depending on the temperature of the treatment solution or the immersion time.
さらに、本実施例ではチタンまたはチタン合金の表面に
被膜を形成するため、処理液にチタンまたはチタン合金
を浸漬させているが、これに限るものでなく、浸漬の代
わりに塗布、噴霧等の手段を用いてチタンまたはチタン
合金の表面に処理液を付着させ被膜を形成させても良い
。Furthermore, in this example, the titanium or titanium alloy is immersed in the treatment liquid in order to form a film on the surface of the titanium or titanium alloy, but the method is not limited to this, and means such as coating or spraying may be used instead of immersion. The treatment liquid may be applied to the surface of titanium or titanium alloy to form a film.
次に請求項３記載の本発明方法を用い、黒褐色から黒色
を基調にしてチタンまたはチタン合金素材自身のパター
ンを形成させ１．内装及び外装プレート素材を得る方法
について述べる。Next, using the method of the present invention as set forth in claim 3, a pattern of the titanium or titanium alloy material itself is formed using a blackish-brown to black color as a base color.1. A method for obtaining interior and exterior plate materials will be described.
まず、パターン形成するようにチタン板またはチタン合
金板の表面に耐酸性インキ等のレジストインキを印刷し
た後、レジストインキが印刷されていない部分をエツチ
ング処理する。そして、エツチングしたチタンまたはチ
タン合金の板を０．５〜１５重景％重量ウフッ化水素酸
溶液または０．０５〜１０重量％の酸性フッ化カリウム
溶液に０°Ｃ−１００°Ｃの温度で２〜３分間浸漬する
。溶液から取り出して水洗いした後、乾燥させチタン板
またはチタン合金板の表面に黒褐色または黒色の被膜を
形成する。次いでレジストインキを除去することにより
１、黒褐色または黒色を基調にしたチタンまたはチタン
合金素材のパターンを形成でき、該パターンを表面に有
するチタン材またはチタン合金材が得られる。このチタ
ン材またはチタン合金材は黒褐色または黒色を基調とし
たパターンが形成されているので美麗でありしかも光反
射を防止することができ、またチタン自身の特性である
耐食性に優れているため、外装材、内装材、装飾品等多
くの用途に用いることができる。First, a resist ink such as an acid-resistant ink is printed on the surface of a titanium plate or a titanium alloy plate to form a pattern, and then the portions where the resist ink is not printed are etched. Then, the etched titanium or titanium alloy plate is placed in a 0.5-15 weight% hydrofluoric acid solution or a 0.05-10 weight% acidic potassium fluoride solution at a temperature of 0°C-100°C. Soak for 2-3 minutes. After taking it out of the solution and washing it with water, it is dried to form a dark brown or black film on the surface of the titanium plate or titanium alloy plate. Then, by removing the resist ink, a pattern of the titanium or titanium alloy material having a blackish brown or black tone can be formed, and a titanium material or titanium alloy material having the pattern on the surface can be obtained. This titanium material or titanium alloy material has a pattern based on blackish brown or black, making it beautiful and preventing light reflection.Also, titanium itself has excellent corrosion resistance, so it can be used for exterior decoration. It can be used for many purposes such as materials, interior materials, and decorative items.
以上詳述した如く、本発明に斯がるチタンまたはチタン
合金の表面処理方法にあっては、処理液として好ましく
は０．５〜１５重量％の濃度のホウフッ化水素酸溶液ま
たは好ましくは０．０５〜１０重量％の濃度の酸性フッ
化カリウム溶液を用い、これにチタンまたはチタン合金
を浸漬しているので、特別な装置を用いることなく、容
易な操作で、しがも安全に短時間で黒褐色または黒色の
被膜をチタンまたはチタン合金の表面に形成することが
できる。As detailed above, in the method for surface treatment of titanium or titanium alloy according to the present invention, the treatment liquid is preferably a fluoroboric acid solution having a concentration of 0.5 to 15% by weight, or preferably a 0.5% to 15% concentration by weight. Since the titanium or titanium alloy is immersed in an acidic potassium fluoride solution with a concentration of 0.05 to 10% by weight, it can be easily operated, safely, and in a short time without using any special equipment. A dark brown or black coating can be formed on the surface of titanium or titanium alloy.
また、黒褐色または黒色の被膜が形成されたチタンまた
はチタン合金の外装材は光反射を防止する効果がある。Furthermore, the exterior material made of titanium or titanium alloy on which a dark brown or black coating is formed has the effect of preventing light reflection.
そしてチタンまたはチタン合金のパターン形成方法にあ
っては、チタンまたはチタン合金の表面にレジストイン
キを用いて所定パターンを形成し、レジストインキ非形
成部分をエツチングして上述した表面処理方法を行い、
次いでレジストインキを除去することにより表面に黒褐
色または黒色を基調とした種々のパターンが形成でき、
該パターンが形成されたチタン材またはチタン合金材が
得られる。このチタン材またはチタン合金材の表面は黒
褐色または黒色を基調としたパターンが形成されている
ので美麗であり、しかもチタン自身の特性である耐食性
に傍れているため、内装材、装飾品等多くの用途に用い
ることができる等本発明は優れた効果を特するIn a method for forming a pattern on titanium or a titanium alloy, a predetermined pattern is formed on the surface of titanium or a titanium alloy using resist ink, and the portions where the resist ink is not formed are etched and the above-mentioned surface treatment method is performed.
Then, by removing the resist ink, various patterns based on dark brown or black can be formed on the surface.
A titanium material or titanium alloy material on which the pattern is formed is obtained. The surface of this titanium material or titanium alloy material is beautiful because it has a pattern based on dark brown or black, and it also has corrosion resistance, which is a characteristic of titanium itself, so it is used in interior materials, decorations, etc. The present invention has excellent effects, such as being able to be used for
Claims (1)
るチタンまたはチタン合金の表面処理方法において、前
記処理液にホウフッ化水素酸溶液または酸性フッ化カリ
ウム溶液を用いることを特徴とするチタンまたはチタン
合金の表面処理方法。 ２、前記ホウフッ化水素酸溶液の濃度を０．５〜１５重
量％とすることを特徴とする請求項１記載のチタンまた
はチタン合金の表面処理方法。 ３、前記フッ化カリウム溶液の濃度を０．０５〜１０重
量％とすることを特徴とする請求項１記載のチタンまた
はチタン合金の表面処理方法。 ４、チタンまたはチタン合金の表面にレジストインキを
用いて所定パターンを形成し、レジストインキ非形成部
分に請求項１記載の表面処理を行い、次いで前記レジス
トインキを除去することを特徴とするチタンまたはチタ
ン合金のパターン形成方法。 ５、請求項４記載のパターン形成方法により形成された
着色被膜を表面に有することを特徴とするチタン材また
はチタン合金材。[Claims] 1. A method for surface treatment of titanium or titanium alloy in which a colored film is formed on the surface by reaction with a treatment liquid, in which a fluoroboric acid solution or an acidic potassium fluoride solution is used as the treatment liquid. A method for surface treatment of titanium or titanium alloy. 2. The method for surface treatment of titanium or titanium alloy according to claim 1, characterized in that the concentration of the fluoroboric acid solution is 0.5 to 15% by weight. 3. The method for surface treatment of titanium or titanium alloy according to claim 1, characterized in that the concentration of the potassium fluoride solution is 0.05 to 10% by weight. 4. A titanium or titanium alloy characterized by forming a predetermined pattern on the surface of titanium or a titanium alloy using resist ink, performing the surface treatment according to claim 1 on the portion where the resist ink is not formed, and then removing the resist ink. Pattern formation method for titanium alloy. 5. A titanium material or titanium alloy material having a colored film formed by the pattern forming method according to claim 4 on its surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32386488A JPH02170984A (en) | 1988-12-22 | 1988-12-22 | Surface treatment for titanium or titanium alloy and titanium material or titanium alloy material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32386488A JPH02170984A (en) | 1988-12-22 | 1988-12-22 | Surface treatment for titanium or titanium alloy and titanium material or titanium alloy material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02170984A true JPH02170984A (en) | 1990-07-02 |
| JPH052740B2 JPH052740B2 (en) | 1993-01-13 |
Family
ID=18159442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP32386488A Granted JPH02170984A (en) | 1988-12-22 | 1988-12-22 | Surface treatment for titanium or titanium alloy and titanium material or titanium alloy material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02170984A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2024000067A (en) * | 2022-06-20 | 2024-01-05 | 博康 市川 | Method for producing metal product |
| CN117344294A (en) * | 2023-09-01 | 2024-01-05 | 北京科技大学 | A kind of black surface of titanium material and preparation method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5352249A (en) * | 1976-10-12 | 1978-05-12 | Toho Titanium Co Ltd | Process for generating black coating on metallic titanium surface |
| JPS5823469A (en) * | 1981-08-03 | 1983-02-12 | Mitsubishi Electric Corp | Composite power transistor |
-
1988
- 1988-12-22 JP JP32386488A patent/JPH02170984A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5352249A (en) * | 1976-10-12 | 1978-05-12 | Toho Titanium Co Ltd | Process for generating black coating on metallic titanium surface |
| JPS5823469A (en) * | 1981-08-03 | 1983-02-12 | Mitsubishi Electric Corp | Composite power transistor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2024000067A (en) * | 2022-06-20 | 2024-01-05 | 博康 市川 | Method for producing metal product |
| CN117344294A (en) * | 2023-09-01 | 2024-01-05 | 北京科技大学 | A kind of black surface of titanium material and preparation method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH052740B2 (en) | 1993-01-13 |
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