JPS62253778A - Method for cladding noble metal to copper member - Google Patents
Method for cladding noble metal to copper memberInfo
- Publication number
- JPS62253778A JPS62253778A JP61097222A JP9722286A JPS62253778A JP S62253778 A JPS62253778 A JP S62253778A JP 61097222 A JP61097222 A JP 61097222A JP 9722286 A JP9722286 A JP 9722286A JP S62253778 A JPS62253778 A JP S62253778A
- Authority
- JP
- Japan
- Prior art keywords
- noble metal
- ceramics
- laser beam
- copper
- base 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
- 229910000510 noble metal Inorganic materials 0.000 title claims abstract description 48
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 33
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 33
- 239000010949 copper Substances 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims description 13
- 238000005253 cladding Methods 0.000 title abstract 2
- 239000000919 ceramic Substances 0.000 claims abstract description 39
- 239000000843 powder Substances 0.000 claims abstract description 16
- 238000003825 pressing Methods 0.000 claims abstract description 5
- 238000000576 coating method Methods 0.000 claims description 44
- 239000011248 coating agent Substances 0.000 claims description 35
- 239000000463 material Substances 0.000 abstract description 33
- 229910052709 silver Inorganic materials 0.000 abstract description 7
- 239000004332 silver Substances 0.000 abstract description 7
- 230000001678 irradiating effect Effects 0.000 abstract description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052593 corundum Inorganic materials 0.000 abstract 1
- 229910001845 yogo sapphire Inorganic materials 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 description 18
- 239000002184 metal Substances 0.000 description 18
- 239000010970 precious metal Substances 0.000 description 12
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 10
- 229910000831 Steel Inorganic materials 0.000 description 9
- 239000010959 steel Substances 0.000 description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 239000010408 film Substances 0.000 description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 3
- 229910052737 gold Inorganic materials 0.000 description 3
- 239000010931 gold Substances 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 239000010953 base metal Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Landscapes
- Laser Beam Processing (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分舒〕
この発明は、例えばしゃ断器に用いられるコンタクタな
どの銅系部材の貴金属被覆方法に関し、特にその被覆プ
ロセスの改善に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application] The present invention relates to a method of coating a copper-based member such as a contactor used in a circuit breaker with a noble metal, and particularly relates to an improvement in the coating process.
従来のしゃ断器のコンタクタは、銅系部材に湿式めつき
１こより銀めっきされており、レーザビームを利用した
方法はなかった。Conventional breaker contactors are made of a copper-based material that is wet-plated with silver, and there is no method that uses a laser beam.
材料として銅系部材の貴金属被覆に限定しなければ、レ
ーザビームを用いた金属被覆方法として、例えば特開昭
５７−１５５８６８号公報に記載されているものがあっ
た。第３図はこの被覆方法による金属被覆装置を示す構
成図である。図において、（１）はレーザ発振器、（１
ａ）はレーザ発振器（１）で発振されたレーザビーム、
（２ａ）、（２ｂ）、（２ｃ）はレーザビーム（ｌａ）
の方向を変更するためのペンドミラーで、レーザビーム
（ｌａ）を伝送するビーム伝送光学系を構成している。If the material is not limited to precious metal coating of copper-based members, there is a metal coating method using a laser beam, for example, described in Japanese Patent Application Laid-open No. 57-155868. FIG. 3 is a block diagram showing a metal coating apparatus using this coating method. In the figure, (1) is a laser oscillator, (1
a) is a laser beam oscillated by a laser oscillator (1);
(2a), (2b), (2c) are laser beams (la)
A beam transmission optical system for transmitting the laser beam (la) is composed of pend mirrors for changing the direction of the laser beam (la).
（３）はレーザビーム（ｌａ）を集光するための集光レ
ンズ、（４）は被覆金属粉末を送給するための粉末送給
装置、（５）は粉末を導くための粉末送給管、（６）は
粉末を下地金属材料、例えば基材（７）に吹きつけるた
めのノズル、（８）はノズル（６）より噴出する粉末流
、（９）は基材（７）を被覆する金属皮膜である。図中
、矢印人はレーザビーム（ｌａ）の進行方向。(3) is a condensing lens for focusing the laser beam (la), (4) is a powder feeding device for feeding the coated metal powder, and (5) is a powder feeding tube for guiding the powder. , (6) is a nozzle for spraying powder onto a base metal material, for example, a base material (7), (8) is a powder stream ejected from the nozzle (6), and (9) is a material that coats the base material (7). It is a metal film. In the figure, the arrow indicates the traveling direction of the laser beam (la).
矢印Ｂは基材（７）の進行方向を示している。Arrow B indicates the direction of movement of the base material (7).
従来の金属被覆装置は上記のように構成され、レーザ発
振器（１）で発振されたレーザビーム（ｌａ）は矢印ム
で示されるようにペンドミラー（２ａ）、（２ｂ）。The conventional metal coating apparatus is constructed as described above, and the laser beam (la) oscillated by the laser oscillator (1) is transmitted to pend mirrors (2a) and (2b) as shown by arrows.
（２ｃ）により伝送される。これと共に、基材（７）を
矢印Ｂ方向に移動させながら、ノズル（６）よりＩＨＬ
ｔ属粉末（８）を基材（７）上に送給する。この被覆金
属粉末（８）に対し、集光レンズ（３）で適度なビーム
径に集光されたレーザビーム（１ａ）を照射する。レー
ザビーム（１ａ）は被覆金属粉末（８）および基材（７
）に吸収されて、被覆金属粉末（８）および基材（７）
の表面層は溶融し、両者は金属的に結合して基材（７）
は金属皮膜（９）で被覆される。(2c). At the same time, while moving the base material (7) in the direction of arrow B, the IHL is removed from the nozzle (6).
Powder (8) is delivered onto the substrate (7). This coated metal powder (8) is irradiated with a laser beam (1a) that has been focused to an appropriate beam diameter by a condenser lens (3). The laser beam (1a) is applied to the coated metal powder (8) and the base material (7).
), coated metal powder (8) and substrate (7)
The surface layer of is melted and the two are metallically bonded to form the base material (7).
is coated with a metal coating (9).
上記のような従来の金属被覆方法では、基材（７）とし
て鉄系合金、被覆金属粉末（８）としてＮｉ、Ｏｒおよ
びこれらの合金が主として用いられ、この場合には良好
な金属皮膜（９）を形成するのが比較的容易であった。In the conventional metal coating method as described above, an iron-based alloy is mainly used as the base material (7), and Ni, Or, and alloys thereof are mainly used as the coating metal powder (8), and in this case, a good metal coating (9) is used. ) was relatively easy to form.
しかしながら、銅系部材から成る基材（７）に銀や金な
どの貴金属を被覆する場合には、銅・銀・金のレーザビ
ーム吸収率が鉄系材料に比較して著しく低く、さらに銅
系部材の熱伝導率が扁い点が異なる。第４図は従来の方
法によって銅系部材に被覆した貴金属被覆部を示す断面
図であり、この図に示されるようにレーザビームを照射
しても、基材（７）の表面層の温度は接合温度に容易に
到達せず、その結果、レーザビーム（１ａ）が照射され
た部分の貴金属粉末αＱのみが溶融して粒子ａＤ状に凝
集し、均一な被覆貴金属皮膜を形成できないという問題
点があった。However, when coating a base material (7) made of a copper-based material with a precious metal such as silver or gold, the laser beam absorption rate of copper, silver, and gold is significantly lower than that of iron-based materials, and The difference is that the thermal conductivity of the members is low. FIG. 4 is a cross-sectional view showing a noble metal coating part coated on a copper-based member by a conventional method. As shown in this figure, even when irradiated with a laser beam, the temperature of the surface layer of the base material (7) remains constant. The problem is that the bonding temperature cannot be easily reached, and as a result, only the noble metal powder αQ in the portion irradiated with the laser beam (1a) melts and aggregates into particles aD, making it impossible to form a uniform noble metal coating. there were.
この発明はかかる問題点を解決するためになされたもの
で、銅系部材に貴金属を均一に被覆することのできる銅
系部材の貴金属被覆方法を得ることを目的とする。The present invention has been made to solve these problems, and an object of the present invention is to provide a method for coating a copper-based member with a precious metal, which can uniformly coat the copper-based member with a noble metal.
この発明に係る銅系部材の貴金属被覆方法は、貴金属薄
板にセラミツクスを付着または載置する工程、銅系部材
の貴金属被覆部に貴金属薄板を供給する工程、セラミッ
クスが付着または載置した賞金Ｒ薄板を貴金属被覆部に
押圧する工程、及び貴金属薄板が押圧された貴金属被覆
部にレーザビームを照射して、銅系部材をセラミックス
が分散した貴金属で被覆する工程を施すものである。The noble metal coating method for a copper-based member according to the present invention includes a step of attaching or placing ceramics on a noble metal thin plate, a step of supplying a noble metal thin plate to a noble metal coating portion of a copper-based member, and a prize R thin plate on which ceramics are attached or placed. The method includes a step of pressing the thin precious metal plate onto the noble metal coating portion, and a step of irradiating the pressed precious metal thin plate with a laser beam to coat the copper-based member with the noble metal in which ceramics are dispersed.
、この発明におけるセラミックスは、レーザビームの吸
収を容易にして銅系部材の温度と昇を促進する。さらに
セラミックスは被覆する貴金属皮膜中に残留し、皮膜の
耐摩耗性を高める。, the ceramic in this invention facilitates laser beam absorption and promotes temperature rise of the copper-based member. Furthermore, the ceramic remains in the noble metal coating and increases the wear resistance of the coating.
第１図はこの発明の一実施例による銅系部材の貴金属被
覆方法に係る被覆装置の要部を示す斜視図である。因に
おいて、（７）は銅系部材による基材、（９）は基材（
７）を被覆する貴金属皮膜、口は貴金属薄板で、例えば
リボン状の銀薄板、 （１８ａ）はセラミック付着層、
α尋は例えば粉体であるセラミックス（至）を貴金属皮
膜中に付着または載置するセラミックパウダ供給装置、
ａ・は貴金属薄板□□□を基材（７）の貴金属被覆をす
る部分に押圧する加圧ロール、Ｑηはレーザビーム（１
ａ）照射部である。この実施例におけるセラミックス（
至）は例えばアルミナ（Ａ １２０３ ）を用いている
。FIG. 1 is a perspective view showing the main parts of a coating apparatus for a method of coating a copper-based member with a noble metal according to an embodiment of the present invention. In the above, (7) is a base material made of a copper-based member, and (9) is a base material (
7) is a noble metal film covering, the opening is a noble metal thin plate, for example a ribbon-shaped silver thin plate, (18a) is a ceramic adhesive layer,
αhiro is a ceramic powder supply device that attaches or places powdered ceramics on a precious metal coating.
a. is a pressure roll that presses the precious metal thin plate □□□ onto the part of the base material (7) to be coated with the precious metal, and Qη is a laser beam (1
a) It is an irradiation part. Ceramics in this example (
) uses alumina (A 1203 ), for example.
上記の装置において、基材（７）の貴金属被覆をする部
分にリボン状の銀薄板四を供給する。この銀薄板□□□
上にセラミックパウダ供給装置ａ４よりセラミックス（
ト）を供給して、２μｍ程度の厚さに付着または載置す
る。次に加圧ロールａ０をセラミックス（至）のとから
加圧しながら、矢印方向に回転させる。In the above apparatus, a ribbon-shaped thin silver plate 4 is supplied to the part of the base material (7) to be coated with the noble metal. This thin silver plate□□□
Ceramics (
(g) is applied to a thickness of about 2 μm. Next, the pressure roll a0 is rotated in the direction of the arrow while applying pressure to the ceramic.
これにより、セラミックス（イ）は銀薄板口の表面に付
着されるか、加圧の程度によっては銀薄板Ｑにくい込ん
でセラミック付着ＩＩ（１８ａ）を形成する。As a result, the ceramic (A) is adhered to the surface of the thin silver plate opening, or depending on the degree of pressure, is embedded in the thin silver plate Q to form a ceramic attachment II (18a).
この加圧ロールαＱによって鋼薄扱口も基材（７）に押
圧される。この状態でレーザビーム（ｌａ）を照射する
と、ビーム照射部■ではセラミックス（９）がレーザビ
ームをよく吸収して基材（７）の温度が上昇し、基材（
７）と鋼薄扱口とのなじみが良好になる。第２因はこの
一実施例によって形成された貴金属被覆部を拡大して示
す断面図であり、図において、■はレーザビーム（１ａ
）によって鋼薄板０が溶融された後、冷却して形成され
た溶着金属である。図に示されるようＣζ、溶着金属（
２）と基材（７）とは十分な密着力で接合される。この
時、セラミックス（７）はレーザビーム（ｌａ）を吸収
して全部蒸発などにより消失するのではなく、一部は溶
着金属側中に残留する。このセラミックス（至）は形成
された貴金属皮膜（９）の耐摩耗性を高める働きをする
。さらに、鋼薄板側を用いているため、基材（７）の被
覆を施すべき部分を限定することができるので、材料の
節減を図ることが可能となる。The steel thin handling opening is also pressed against the base material (7) by this pressure roll αQ. When the laser beam (la) is irradiated in this state, the ceramic (9) in the beam irradiation part (2) absorbs the laser beam well, and the temperature of the base material (7) rises.
7) and the steel thin handling opening become better compatible. The second factor is an enlarged cross-sectional view of the noble metal coating formed by this embodiment, and in the figure, ■ indicates a laser beam (1a
) is a welded metal formed by melting a thin steel plate 0 and then cooling it. As shown in the figure, Cζ, weld metal (
2) and the base material (7) are joined with sufficient adhesion. At this time, the ceramic (7) absorbs the laser beam (la) and does not completely disappear by evaporation or the like, but a portion remains in the weld metal side. This ceramic material serves to enhance the wear resistance of the formed noble metal film (9). Furthermore, since the thin steel plate side is used, the portion of the base material (7) to be coated can be limited, so it is possible to save on materials.
なお、セラミックス（至）を付着または載置する厚さを
２μｍ程度としたが、これに限るものではなく、０．５
μｍ〜１０μｍ程度が望ましい。この厚さが０．５μｍ
未満だと基材（７）に対する昇温効果が低く、１０μｍ
を越えると工程中にセラミックス（ト）が剥離しやすく
なると共に、導電率の低下を招く。In addition, although the thickness to which the ceramics are attached or placed is approximately 2 μm, it is not limited to this, and may be approximately 0.5 μm.
It is desirable to have a thickness of approximately 10 μm to 10 μm. This thickness is 0.5μm
If it is less than 10 μm, the temperature increase effect on the base material (7) is low.
If it exceeds this value, the ceramic (g) tends to peel off during the process and also causes a decrease in electrical conductivity.
また、銀薄膜−の基材（７）への密着性を高めるために
加圧ロールａ・を加熱し、鋼薄板側を軟化させてもよい
。Further, in order to improve the adhesion of the silver thin film to the base material (7), the pressure roll a may be heated to soften the steel thin plate side.
さらに、加圧ロール（Ｉｅは壁面がなめらかな棒状のも
のを用いているが、壁面に微小な凹凸加工を施し、鋼薄
板部を基材（７）Ｉζ押圧すると同時に基材（７）にく
い込ませるよう−こすれば、密着性を高めることができ
ると共に、セラミックス（至）を鋼薄板側に均一に付着
または載置することができる。また、この鋼薄扱口の凹
凸はあらかじめ形成しておいてもよい。Furthermore, the pressure roll (Ie is a rod-shaped one with a smooth wall surface, but the wall surface is machined with minute irregularities, and the thin steel plate part is pressed into the base material (7) Iζ while simultaneously being embedded into the base material (7). By rubbing it, you can improve the adhesion and also make it possible to adhere or place the ceramics evenly on the thin steel sheet side.In addition, the unevenness of the opening for handling the steel sheet can be formed in advance. You can stay there.
また、と記実施例では、鋼薄板□□□に粉体状のセラミ
ックス（至）を付着または載置しているが、あらかじめ
鋼薄板Ｑ上に塗布などによりセラミックス膜を形成した
ものを用いてもよい。In addition, in the embodiments described, powdered ceramics are attached or placed on the thin steel plate □□□. Good too.
また、貴金属は銀に限らず、金や銅などの場合にも適用
でき、基材（７）としては銅や銅合金など醗ζ適用でき
る。Further, the noble metal is not limited to silver, but can also be applied to gold, copper, etc., and as the base material (7), copper, copper alloy, etc. can be applied.
また、レーザとしては、ＣＯ！レーザやＹＡＧレーザな
どを用いることができる。Also, as a laser, CO! A laser, a YAG laser, or the like can be used.
以上のよう１こ、この発明１こよれば、貴金属薄板にセ
ラミックスを付着または載置する工程、銅系部材の貴金
属被覆部に貴金属薄板を供給する工程。As described above, according to the present invention, there is a step of attaching or placing ceramics on a noble metal thin plate, and a step of supplying the noble metal thin plate to the noble metal coating portion of a copper-based member.
セラミックスが付着または載置した貴金属薄板を貴金属
被覆部１こ押圧する工程、及び貴金属薄板が押圧された
貴金属被覆部にレーザビームを照射して、銅系部材をセ
ラミックスが分散しＴ二貴金属で被覆する工程を施すこ
とにより、レーザビームの吸収率を高めると共に、耐摩
耗性を向上させることのできる銅系部材の貴金属被覆方
法が得られる効果がある。A process of pressing the noble metal thin plate on which the ceramic is attached or placed onto the noble metal coating part, and irradiating the precious metal coating part with the pressed precious metal thin plate with a laser beam, so that the ceramic is dispersed in the copper-based member and the copper-based member is coated with the noble metal. By carrying out this step, there is an effect that a method of coating a copper-based member with a noble metal can be obtained, which can increase the absorption rate of the laser beam and improve the wear resistance.
第１図はこの発明の一実施例による銅系部材の貴金属被
覆方法Ｉｒ−係る被覆装置の要部を示す斜視図、第２図
は一実施例によって形成された貴金属被覆部を拡大して
示す断面図、第３図は従来の金属被覆方法による金属被
覆装置を示す構成図、第４図は従来の金属被覆方法によ
り銅系部材に貴金属被覆した時の貴金属被覆部を示す断
面図である。
（１ａ）・・・レーザビーム、（７）・・・銅系部材、
口・・・貴金属薄板、（至）・・・セラミックス、ａ・
・・・加圧ロール。
なお、図中、同一符号は同一、又は相当部分を示す。FIG. 1 is a perspective view showing a main part of a coating device for a precious metal coating method Ir for a copper-based member according to an embodiment of the present invention, and FIG. 2 is an enlarged view of a noble metal coating formed according to an embodiment of the present invention. 3 is a block diagram showing a metal coating apparatus using a conventional metal coating method, and FIG. 4 is a sectional view showing a noble metal coating portion when a copper-based member is coated with a noble metal using a conventional metal coating method. (1a)... Laser beam, (7)... Copper-based member,
Mouth: Precious metal thin plate, (To): Ceramics, a.
...Pressure roll. In addition, in the figures, the same reference numerals indicate the same or equivalent parts.
Claims (4)
工程、銅系部材の貴金属被覆部に上記貴金属薄板を供給
する工程、上記セラミックスが付着または載置した上記
貴金属薄板を上記貴金属被覆部に押圧する工程、及び上
記貴金属薄板が押圧された上記貴金属被覆部にレーザビ
ームを照射して、上記銅系部材を上記セラミックスが分
散した貴金属で被覆する工程を施す銅系部材の貴金属被
覆方法。(1) Step of attaching or placing ceramics on the noble metal thin plate; supplying the noble metal thin plate to the noble metal coating portion of the copper-based member; pressing the noble metal thin plate with the ceramics attached or placed on the noble metal coating portion; A method for coating a copper-based member with a noble metal, the method comprising: applying a laser beam to the noble metal coating portion onto which the noble metal thin plate is pressed to coat the copper-based member with the noble metal in which the ceramic is dispersed.
許請求の範囲第１項記載の銅系部材の貴金属被覆方法。(2) A method for coating a copper-based member with a noble metal according to claim 1, wherein the ceramic is a powder.
μｍ〜１０μｍであることを特徴とする特許請求の範囲
第１項または第２項記載の銅系部材の貴金属被覆方法。(3) The thickness to which ceramics are attached or placed is 0.5
3. The method of coating a copper-based member with a noble metal according to claim 1 or 2, wherein the coating thickness is 10 μm to 10 μm.
貴金属被覆部に押圧すると同時に、上記セラミックスを
上記貴金属薄板にくい込ませるようにしたことを特徴と
する特許請求の範囲第１項ないし第３項のいずれかに記
載の銅系部材の貴金属被覆方法。(4) The thin noble metal plate on which the ceramic is attached or placed is pressed against the noble metal coating portion, and at the same time, the ceramic is embedded in the thin noble metal plate. A noble metal coating method for a copper-based member according to any one of the above.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61097222A JPS62253778A (en) | 1986-04-25 | 1986-04-25 | Method for cladding noble metal to copper member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61097222A JPS62253778A (en) | 1986-04-25 | 1986-04-25 | Method for cladding noble metal to copper member |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62253778A true JPS62253778A (en) | 1987-11-05 |
Family
ID=14186605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61097222A Pending JPS62253778A (en) | 1986-04-25 | 1986-04-25 | Method for cladding noble metal to copper member |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62253778A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0664349A1 (en) * | 1994-01-25 | 1995-07-26 | DEUTSCHE FORSCHUNGSANSTALT FÜR LUFT- UND RAUMFAHRT e.V. | Process for coating copper-based materials |
| GB2533447A (en) * | 2014-07-18 | 2016-06-22 | Gm Global Tech Operations Llc | Method for treating sheet metal |
| US10297384B2 (en) | 2015-11-10 | 2019-05-21 | GM Global Technology Operations LLC | Method for processing a plate workpiece |
| US10309004B2 (en) | 2014-07-18 | 2019-06-04 | GM Global Technology Operations LLC | Metal sheet and method for its treatment |
| US10344349B2 (en) | 2013-07-24 | 2019-07-09 | GM Global Technology Operations LLC | Method for treating sheet metal |
-
1986
- 1986-04-25 JP JP61097222A patent/JPS62253778A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0664349A1 (en) * | 1994-01-25 | 1995-07-26 | DEUTSCHE FORSCHUNGSANSTALT FÜR LUFT- UND RAUMFAHRT e.V. | Process for coating copper-based materials |
| US10344349B2 (en) | 2013-07-24 | 2019-07-09 | GM Global Technology Operations LLC | Method for treating sheet metal |
| GB2533447A (en) * | 2014-07-18 | 2016-06-22 | Gm Global Tech Operations Llc | Method for treating sheet metal |
| US10309004B2 (en) | 2014-07-18 | 2019-06-04 | GM Global Technology Operations LLC | Metal sheet and method for its treatment |
| US10297384B2 (en) | 2015-11-10 | 2019-05-21 | GM Global Technology Operations LLC | Method for processing a plate workpiece |
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