DE3311882A1 - MATERIAL PIECE OF ALUMINUM, PREFERABLY ALUMINUM SHIELD AND METHOD FOR PRODUCING THE SAME - Google Patents
MATERIAL PIECE OF ALUMINUM, PREFERABLY ALUMINUM SHIELD AND METHOD FOR PRODUCING THE SAMEInfo
- Publication number
- DE3311882A1 DE3311882A1 DE19833311882 DE3311882A DE3311882A1 DE 3311882 A1 DE3311882 A1 DE 3311882A1 DE 19833311882 DE19833311882 DE 19833311882 DE 3311882 A DE3311882 A DE 3311882A DE 3311882 A1 DE3311882 A1 DE 3311882A1
- Authority
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- Germany
- Prior art keywords
- solution
- aluminum
- anodized
- piece
- laser beam
- 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.)
- Ceased
Links
- 229910052782 aluminium Inorganic materials 0.000 title claims description 27
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims description 27
- 239000000463 material Substances 0.000 title claims description 13
- 238000004519 manufacturing process Methods 0.000 title claims description 3
- 238000000034 method Methods 0.000 claims description 20
- 239000000243 solution Substances 0.000 claims description 19
- 239000000126 substance Substances 0.000 claims description 19
- 238000002845 discoloration Methods 0.000 claims description 8
- 238000009835 boiling Methods 0.000 claims description 7
- 239000012266 salt solution Substances 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 claims description 5
- 239000008103 glucose Substances 0.000 claims description 5
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 claims description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 4
- 229910002651 NO3 Inorganic materials 0.000 claims description 4
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 claims description 4
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 4
- UNTBPXHCXVWYOI-UHFFFAOYSA-O azanium;oxido(dioxo)vanadium Chemical group [NH4+].[O-][V](=O)=O UNTBPXHCXVWYOI-UHFFFAOYSA-O 0.000 claims description 4
- 238000003776 cleavage reaction Methods 0.000 claims description 3
- 150000001868 cobalt Chemical class 0.000 claims description 3
- 229940011182 cobalt acetate Drugs 0.000 claims description 3
- QAHREYKOYSIQPH-UHFFFAOYSA-L cobalt(II) acetate Chemical compound [Co+2].CC([O-])=O.CC([O-])=O QAHREYKOYSIQPH-UHFFFAOYSA-L 0.000 claims description 3
- 238000006116 polymerization reaction Methods 0.000 claims description 3
- 230000007017 scission Effects 0.000 claims description 3
- SPFMQWBKVUQXJV-BTVCFUMJSA-N (2r,3s,4r,5r)-2,3,4,5,6-pentahydroxyhexanal;hydrate Chemical group O.OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C=O SPFMQWBKVUQXJV-BTVCFUMJSA-N 0.000 claims description 2
- 229910021529 ammonia Inorganic materials 0.000 claims description 2
- 239000007864 aqueous solution Substances 0.000 claims description 2
- 229910001430 chromium ion Inorganic materials 0.000 claims description 2
- 150000002815 nickel Chemical class 0.000 claims description 2
- 150000002816 nickel compounds Chemical class 0.000 claims description 2
- 150000002823 nitrates Chemical class 0.000 claims description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims 2
- 150000003839 salts Chemical class 0.000 claims 2
- MFEVGQHCNVXMER-UHFFFAOYSA-L 1,3,2$l^{2}-dioxaplumbetan-4-one Chemical compound [Pb+2].[O-]C([O-])=O MFEVGQHCNVXMER-UHFFFAOYSA-L 0.000 claims 1
- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 claims 1
- 229910000003 Lead carbonate Inorganic materials 0.000 claims 1
- PTFCDOFLOPIGGS-UHFFFAOYSA-N Zinc dication Chemical compound [Zn+2] PTFCDOFLOPIGGS-UHFFFAOYSA-N 0.000 claims 1
- 150000001242 acetic acid derivatives Chemical class 0.000 claims 1
- MQRWBMAEBQOWAF-UHFFFAOYSA-N acetic acid;nickel Chemical compound [Ni].CC(O)=O.CC(O)=O MQRWBMAEBQOWAF-UHFFFAOYSA-N 0.000 claims 1
- 239000001099 ammonium carbonate Substances 0.000 claims 1
- 235000012501 ammonium carbonate Nutrition 0.000 claims 1
- 150000001844 chromium Chemical class 0.000 claims 1
- XHFVDZNDZCNTLT-UHFFFAOYSA-H chromium(3+);tricarbonate Chemical compound [Cr+3].[Cr+3].[O-]C([O-])=O.[O-]C([O-])=O.[O-]C([O-])=O XHFVDZNDZCNTLT-UHFFFAOYSA-H 0.000 claims 1
- 238000005056 compaction Methods 0.000 claims 1
- 150000002696 manganese Chemical class 0.000 claims 1
- 229940071125 manganese acetate Drugs 0.000 claims 1
- UOGMEBQRZBEZQT-UHFFFAOYSA-L manganese(2+);diacetate Chemical compound [Mn+2].CC([O-])=O.CC([O-])=O UOGMEBQRZBEZQT-UHFFFAOYSA-L 0.000 claims 1
- MIVBAHRSNUNMPP-UHFFFAOYSA-N manganese(2+);dinitrate Chemical compound [Mn+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O MIVBAHRSNUNMPP-UHFFFAOYSA-N 0.000 claims 1
- 229940078494 nickel acetate Drugs 0.000 claims 1
- KBJMLQFLOWQJNF-UHFFFAOYSA-N nickel(ii) nitrate Chemical compound [Ni+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O KBJMLQFLOWQJNF-UHFFFAOYSA-N 0.000 claims 1
- 239000002244 precipitate Substances 0.000 claims 1
- 150000003752 zinc compounds Chemical class 0.000 claims 1
- 239000003086 colorant Substances 0.000 description 6
- 239000011148 porous material Substances 0.000 description 6
- WQZGKKKJIJFFOK-VFUOTHLCSA-N beta-D-glucose Chemical compound OC[C@H]1O[C@@H](O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-VFUOTHLCSA-N 0.000 description 5
- 229960001031 glucose Drugs 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 239000000975 dye Substances 0.000 description 3
- 238000002372 labelling Methods 0.000 description 3
- 238000007743 anodising Methods 0.000 description 2
- 150000001845 chromium compounds Chemical class 0.000 description 2
- 229910000428 cobalt oxide Inorganic materials 0.000 description 2
- IVMYJDGYRUAWML-UHFFFAOYSA-N cobalt(ii) oxide Chemical compound [Co]=O IVMYJDGYRUAWML-UHFFFAOYSA-N 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 150000002611 lead compounds Chemical class 0.000 description 2
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- XHCLAFWTIXFWPH-UHFFFAOYSA-N [O-2].[O-2].[O-2].[O-2].[O-2].[V+5].[V+5] Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[V+5].[V+5] XHCLAFWTIXFWPH-UHFFFAOYSA-N 0.000 description 1
- 230000000274 adsorptive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003738 black carbon Substances 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- ZCDOYSPFYFSLEW-UHFFFAOYSA-N chromate(2-) Chemical compound [O-][Cr]([O-])(=O)=O ZCDOYSPFYFSLEW-UHFFFAOYSA-N 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- MOUPNEIJQCETIW-UHFFFAOYSA-N lead chromate Chemical compound [Pb+2].[O-][Cr]([O-])(=O)=O MOUPNEIJQCETIW-UHFFFAOYSA-N 0.000 description 1
- 150000002697 manganese compounds Chemical class 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 1
- 229910000480 nickel oxide Inorganic materials 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical compound [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
- 229910001935 vanadium oxide Inorganic materials 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B44—DECORATIVE ARTS
- B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
- B44C1/00—Processes, not specifically provided for elsewhere, for producing decorative surface effects
- B44C1/02—Pyrography
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/04—Anodisation of aluminium or alloys based thereon
- C25D11/18—After-treatment, e.g. pore-sealing
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
- Thermal Transfer Or Thermal Recording In General (AREA)
- Laser Beam Processing (AREA)
Description
Die Erfindung betrifft ein Materialstück aus Aluminium, vorzugsweise ein Aluminiumschild mit einer hell eloxierten Oberfläche, auf der dunkel kontrastierende Zeichen, Muster oder Bilder ausgebildet sind. Die Erfindung betrifft auch ein Verfahren zur Herstellung derartiger Gegenstände, wobei die Zeichen, Muster oder Bilder mittels energiereicher Laserstrahlen erzeugt werden.The invention relates to a piece of material made of aluminum, preferably an aluminum sign with a light anodized surface, on the dark contrasting one Characters, patterns or images are formed. The invention also relates to a method of manufacture such objects, the characters, patterns or images generated by means of high-energy laser beams will.
Das Aufbringen von Mustern bzw. Beschriften von Schildern kann besonders wirtschaftlich unter Verwendung von entsprechend steuerbaren Laserstrahlschreibern durchgeführt werden. Derartige Laserstrahlschreiber sind bekannt und nicht Gegenstand der Erfindung. Durch einen entsprechend gesteuerten, energiereichen Laserstrahl wird das zu beschriftende Material teilweise geschmolzen und/oder verdampft, so daß sich die derart behandelte Oberfläche in aller Regel kontrastierend von ihrer Umgebung abhebt. Stahlplatten, die bei entsprechender Wärmeeinwirkung Anlauffarben zeigen, können beispielsweise mit diesem Verfahren ohne großen Aufwand beschriftet werden. Auch bei dunkelfarbig eloxierten Aluminiumoberflächen läßt sich das Verfahren einsetzen. Hierbei werden die in der Eloxalschicht eingelagerten Farbstoffe durch die Laserenergie verdampft und es entsteht eine aluminiumfarbige, helle, zur Umgebung kontrastierende Schrift, Muster oder Bild.The application of patterns or labeling of signs can be used particularly economically can be carried out by appropriately controllable laser beam writers. Such laser beam writers are known and not the subject of the invention. With an appropriately controlled, high-energy laser beam the material to be inscribed is partially melted and / or evaporated, so that the so The treated surface usually contrasts with its surroundings. Steel plates that are at show tempering colors with this method, for example, without major exposure to heat Effort to be labeled. The process can also be used on dark-colored anodized aluminum surfaces insert. The dyes stored in the anodized layer are evaporated by the laser energy and the result is an aluminum-colored, light font, pattern or image that contrasts with the surroundings.
Das bekannte Verfahren versagt jedoch bei der Beschriftung von häufig verwendeten naturfarbig, d.h.The known method fails, however, when labeling frequently used natural colors, i. E.
metallisch eloxierten Aluminiumoberflächen. Die aluminiumfarbige Spur des Laserstrahls hebt sich von ihrer Umgebung kaum ab. Der Erfindung liegt daher die Aufgabe zugrunde ein Verfahren zu schaffen, mit dem auf hellen eloxierten Aluminiumflächen eine farbige, insbesondere schwarze Schrift mittels Laserstrahlen erzeugt werden kann.metallic anodized aluminum surfaces. The aluminum-colored one The trace of the laser beam hardly stands out from its surroundings. The invention is therefore the object based on a process to create a colored, in particular black writing can be generated by means of laser beams.
Erfindungsgemäß wird diese Aufgabe durch die im Kennzeichen von Anspruch 9 angegebenen Verfahrensschritte gelöst.According to the invention, this object is achieved by the method steps specified in the characterizing part of claim 9 solved.
Grundlegend für das Verständnis der Erfindung ist das sogenannte "Eloxal-Verfahren", d.h. ein Verfahren, bei dem durch anodische Behandlung im wässrigen Elektrolyt auf Aluminium ein fest haftender Oxidüberzug erzeugt wird. Das Eloxalverfahren ist bekannt und beispielsweise im Handbuch der Galvanik, Band 3, Karl Hauser Verlag, München, 1969, Seiten 1 - 80 ausführlich beschrieben.Fundamental to understanding the invention is the so-called "anodizing process", i.e. a process In the case of anodic treatment in an aqueous electrolyte on aluminum a firmly adhering oxide coating is produced. The anodizing process is known and for example in the manual of electroplating, Volume 3, Karl Hauser Verlag, Munich, 1969, pages 1-80 described in detail.
Die anodische Oxidation führt zur Ausbildung sogenannter Mikroporen an der Oberfläche, die eine hohe Adsorptionskraft für anorganische und organische Stoffe, bespielsweise Farbstoffe besitzen. Aufgrund dieser Eigenschaften kann man dem anodisierten Aluminium nahezu jeden beliebigen Farbton erteilen. Bei hell eloxiertem Aluminium werden keine Farbstoffe in die Mikroporen eingelagert ;die Nachbehandlung, Verdichten genannt, führt zu einem Schließen der Mikroporen und erfolgt durch einfaches Auskochen (Quellung) in Wasser. Bei dieser Nachverdichtung bildet sich auf der Außenseite der Eloxalschicht und in den Poren eine dünne Schicht von Al-Oxidhydroxid. Da diese Schichtbildung mit einer Volumenzunahme vor sich geht, schließen sich die Poren völlig. Es ist auch bekannt, zur Verbesserung der Abdichtungswirkungen die Oberflächen mit heißen Metall-Salzlösungen, beispielsweise Chromat-, Acetat- oder Silicatlösungen zu behandeln. In diesem Fall beträgt jedoch die Konzentration höchstens etwa 20g/l. Eine Beschriftung derartiger Aluminiumoberflächen mit einem Laserstrahl führt zu keinem Ergebnis, da die Farbeffekte zu gering sind.The anodic oxidation leads to the formation of so-called micropores on the surface, which have a high adsorptive power for inorganic and organic substances, for example Own dyes. Because of these properties, the anodized aluminum can be made of almost any material Grant shade. In the case of light anodized aluminum, no dyes are stored in the micropores ; the post-treatment, called compression, closes the micropores and takes place simple boiling (swelling) in water. During this redensification, the is formed on the outside Anodized layer and a thin layer of Al oxide hydroxide in the pores. Since this layering with a When the increase in volume is going on, the pores close completely. It is also known to improve Sealing effects the surfaces with hot metal salt solutions, for example chromate, acetate or Treat silicate solutions. In this case, however, the concentration is at most about 20g / l. One Labeling such aluminum surfaces with a laser beam does not lead to any result because the color effects are too low.
Erfindungsgemäß werden nun in die Mikroporen vor dem Verdichten Stoffe eingelagert, die zunächst farblos sindAccording to the invention, substances that are initially colorless are now stored in the micropores before compression
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bzw. im sichtbaren Bereich des Spektrums nur wenig absorbieren. Die Struktur dieser Stoffe wird jedoch bei Beaufschlagung mit einem energiereichen Laserstrahl geändert und verfärbt, so daß die Verfärbung gegenüber der metallischen, nicht vom Laserstrahl beaufschlagten Umgebung kontrastierend hervortritt. Die Verfärbung kann durch verschiedene Mechanismen erfolgen, möglich ist eine Spaltung chemischer Bindungen, beispielsweise eine Oxidation, eine Umkoordination oder auch eine Polymerisation. Entscheidend ist im vorliegenden Zusammenhang lediglich, daß der energiereiche Laserstrahl die Verbindungen so umwandelt, daß sie einen dunklen, kontrastierenden Farbton annehmen.or absorb only a little in the visible range of the spectrum. The structure of these substances is, however, at Exposure to a high-energy laser beam changed and discolored, so that the discoloration opposite the metallic environment not acted upon by the laser beam emerges in a contrasting manner. The discoloration can take place through various mechanisms; a cleavage of chemical bonds is possible, for example an oxidation, a re-coordination or a polymerization. It is crucial in the present context only that the high-energy laser beam transforms the connections in such a way that they create a dark, take on a contrasting shade.
Bei einer weiteren vorteilhaften Ausführung der Erfindung werden Stoffe in die Poren der Eloxalschicht eingelagert, die abhängig von der eingestrahlten Laserleistung verschiedene Farben dadurch erzeugen, daß sie, auch unter Einbeziehung der Eloxalschicht, zunächst eine farbige Verbindung bilden und bei höherer Laserleistung durch zusätzliche Spaltung chemischer Bindungen und/oder erneute Umkoordination eine andersgefärbte, vorzugsweise schwarze Verbindung bilden.In a further advantageous embodiment of the invention substances are stored in the pores of the anodized layer, which depends on the irradiated laser power produce different colors by first, including the anodized layer form a colored compound and with higher laser power by additional cleavage of chemical bonds and / or renewed re-coordination to form a differently colored, preferably black, compound.
Die Vorteile der Erfindung best.ehen darin, daß es nun auch möglich ist, auf hell eloxierten Aluminiumflächen dunkel kontrastierende Beschriftungen mittels Laserstrahlen herzustellen. Die Möglichkeit, abhängig von der Energie des Laserstrahls zweifarbig zu schreiben, wird als besonders vorteilhaft angesehen.The advantages of the invention consist in the fact that it is now also possible to use light anodized aluminum surfaces to produce dark contrasting lettering using laser beams. The possibility of being dependent Writing in two colors from the energy of the laser beam is considered particularly beneficial.
Nachfolgend wird die Erfindung anhand einiger Beispiele näher beschrieben.The invention is described in more detail below with the aid of a few examples.
Beispiel 1: Erzeugung der Verfärbung durch Polymerisation. Example 1: Generation of the discoloration by polymerization.
Die eloxierte, aber noch unverdientete AluminiumflächeThe anodized, but still undeserved aluminum surface
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mit einer Eloxalschicht von etwa 20μ wird bei etwa 700C für 10 bis 15 Minuten einer wässrigen Glucoselösung ausgesetzt. Die Konzentration der Lösung liegt zwischen 500 und 1000 g Glucosemonohydrat pro Liter Wasser. Das Glucosehydrat wird in die Poren der Eloxalschicht eingelagert. Anschließend wird die Eloxalschicht in einer siedenden, gleichstarken wässrigen Glucoselösung für ca. 1 Stunde verdichtet. Dadurch wird das Austreten der Glucose aus den Poren verhindert.with an anodized layer of about 20μ is exposed to an aqueous glucose solution at about 70 0 C for 10 to 15 minutes. The concentration of the solution is between 500 and 1000 g of glucose monohydrate per liter of water. The glucose hydrate is stored in the pores of the anodized layer. The anodized layer is then compacted in a boiling, equally strong aqueous glucose solution for approx. 1 hour. This prevents the glucose from escaping from the pores.
Wirken Laserstrahlen auf eine so behandelte Schicht ein, kandiert die Glucose und es bilden sich gelbe bis braune Farbtöne. Bei hoher Laserleistung werden die chemischen Bindungen aufgebrochen und es entsteht schwarzer Kohlenstoff.If laser beams act on a layer treated in this way, the glucose candles and yellows are formed to brown shades. When the laser power is high, the chemical bonds are broken and it is created black carbon.
Beispiel 2: Erzeugung verschiedener Farben durch ümkoordination unter Einbeziehung der Eloxalschicht. Example 2: Generation of different colors by umkoordination including the anodized layer.
Der eloxierte Gegenstand wird bei erhöhter Temperatur (7 00C) einer starken wässrigen Kobaltsalzlösung, vorzugsweise Kobaltacetat (Co(CH3-CoO)2). Die Konzentration beträgt etwa 250 g/l und die Dauer der Behandlung soll zwischen 10 und 15 Minuten liegen. Anschließend wird die so behandelte Fläche in einer gleich starken, siedenden wässrigen Lösung verdichtet.The anodized object is at elevated temperature (7 0 0 C) a strong aqueous cobalt salt solution, preferably cobalt acetate (Co (CH 3 -CoO) 2 ). The concentration is about 250 g / l and the duration of the treatment should be between 10 and 15 minutes. The surface treated in this way is then compacted in an equally strong, boiling aqueous solution.
Wird eine so behandelte Oberfläche Laserstrahlen ausgesetzt, so bildet sich Kobaltoxid, das sogleich mit dem Aluminiumoxid der Eloxalschicht zu einem blauen Doppeloxid (Al2CoO4) kristalliert. Der Farbton ist als sogenanntes "Thenardblau" bekannt.If a surface treated in this way is exposed to laser beams, cobalt oxide is formed, which immediately crystallizes with the aluminum oxide of the anodized layer to form a blue double oxide (Al 2 CoO 4 ). The color is known as what is known as "Thenard Blue".
Bei hoher Laserleistung zerfällt dieses Doppeloxid und es entsteht nur das schwarze Kobaltoxid.At high laser power, this double oxide breaks down and only the black cobalt oxide is produced.
Beispiel 3: Einlagerung von Elementen, die in Ionenform den Verdichtungsvorgang beeinflussen. Example 3: Incorporation of elements that influence the compression process in the form of ions.
Zum Beispiel können zur Erzeugung einer roten Verfärbung Chromverbindungen zusammen mit Bleiverbindungen, das gelbrote Bleichromat (PbCrO.) bilden. Da aber sowohl Chromionen als auch Bleiionen den Verdichtungsvorgang stören, müssen die beiden Elemente als wasserunlösliche Verbindungen in die Mikroporen eingelagert werden. Dies geschieht am besten durch Fällung unlöslicher Verbindungen, vorzugsweise der Karbonate. Hierzu wird der eloxierte Gegenstand unter zwischengeschaltetem Spülen mehrfach abwechselnd in die wässrigen Salzlösungen, beispielsweise Nitratlösungen und eine wässrige Natriumcarbonatlösung getaucht.For example, chromium compounds can be used together with lead compounds to produce a red discoloration Form the yellow-red lead chromate (PbCrO.). However, since both chromium ions and lead ions interfere with the compression process, the two elements must be insoluble in water Compounds are embedded in the micropores. This is best done by precipitating insoluble ones Compounds, preferably the carbonates. To do this, the anodized object is placed under the Rinse several times alternately in the aqueous salt solutions, for example nitrate solutions and one dipped in aqueous sodium carbonate solution.
Die Eloxalschicht kann hierauf in siedendem Wasser verdichtet werden. Die Konzentration der Chromverbindungen und Bleiverbindungen in Form von löslichen Nitraten liegt zwischen 250 und 500 g/l.The anodized layer can then be compacted in boiling water. The concentration of the chromium compounds and lead compounds in the form of soluble nitrates is between 250 and 500 g / l.
Beispiel 4: Bildung verschiedener Farben durch fortschreitenden Verfall chemischer Bindungen. Example 4: Formation of different colors through progressive deterioration of chemical bonds.
In heißem Wasser wird'Ammoniumvanadat (NH.VO^) zusammen mit etwas Ammoniak gelöst. In die so entstandene Lösung wird der eloxierte Gegenstand getaucht, um Ammoniummonovanadat in die Poren der Eloxalschicht einzulagern. Die Konzentration beträgt etwa 100 g/l.In hot water it turns into ammonium vanadate (NH.VO ^) dissolved with a little ammonia. The anodized object is immersed in the resulting solution to make ammonium monovanadate to be stored in the pores of the anodized layer. The concentration is about 100 g / l.
Anschließend wird die Eloxalschicht in einer gleichstarken siedenden Lösung verdichtet. Wirken Laserstrahlen auf die so behandelte Oberfläche ein, so bildet sich zunächst das rote Vanadinoxid (V9Oj-) oder bei höherer Laserleistung das bläuliche Oxid (VO9).The anodized layer is then compacted in a boiling solution of the same strength. If laser beams act on the surface treated in this way, the red vanadium oxide (V 9 Oj-) forms first or, with higher laser power, the bluish oxide (VO 9 ).
10 3311832 10 3311832
Beispiel 5: Bildung dunkler Schrift durch Oxide. Example 5: Formation of dark writing by oxides.
Der eloxierte Gegenstand wird bei erhöhter Temperatur einer wässrigen Nickelsalzlösung, vorzugsweise Nitrat oder Acetat ausgesetzt und dann in einer gleichstarken siedenden Lösung verdichtet.The anodized article becomes an aqueous nickel salt solution, preferably nitrate, at an elevated temperature or acetate and then compressed in a boiling solution of the same strength.
Durch Laserstrahlen werden schwarze Verfärbungen durch Bildung Nickeloxids (Ni3O3) erzielt.Laser beams produce black discolorations through the formation of nickel oxide (Ni 3 O 3 ).
Ersetzt man die Nickelverbindungen durch die analogen Manganverbindungen, ist die Eigenfärbung der Oberfläche besonders gering. Die durch Laserstrahlen hervorgerufene schwarze Verfärbung entsteht durch Mangandioxid (MnO2).If the nickel compounds are replaced by the analogous manganese compounds, the inherent color of the surface is particularly low. The black discoloration caused by laser beams is caused by manganese dioxide (MnO 2 ).
Claims (19)
8000 München 2Carl Baasel Lasertechnik KG Sandstrasse 21
8000 Munich 2
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19833311882 DE3311882A1 (en) | 1983-03-31 | 1983-03-31 | MATERIAL PIECE OF ALUMINUM, PREFERABLY ALUMINUM SHIELD AND METHOD FOR PRODUCING THE SAME |
EP84102586A EP0121150A1 (en) | 1983-03-31 | 1984-03-09 | Piece of aluminium material, preferably an aluminium plate, and process for producing the same |
CA000450915A CA1219122A (en) | 1983-03-31 | 1984-03-30 | Aluminum object, preferably an aluminum plate, and a method for producing same |
JP59065032A JPS60248895A (en) | 1983-03-31 | 1984-03-31 | Aluminum article, particularly aluminum plate and manufacture |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19833311882 DE3311882A1 (en) | 1983-03-31 | 1983-03-31 | MATERIAL PIECE OF ALUMINUM, PREFERABLY ALUMINUM SHIELD AND METHOD FOR PRODUCING THE SAME |
Publications (1)
Publication Number | Publication Date |
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DE3311882A1 true DE3311882A1 (en) | 1985-02-07 |
Family
ID=6195284
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19833311882 Ceased DE3311882A1 (en) | 1983-03-31 | 1983-03-31 | MATERIAL PIECE OF ALUMINUM, PREFERABLY ALUMINUM SHIELD AND METHOD FOR PRODUCING THE SAME |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0121150A1 (en) |
JP (1) | JPS60248895A (en) |
CA (1) | CA1219122A (en) |
DE (1) | DE3311882A1 (en) |
Cited By (8)
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DE3738330A1 (en) * | 1986-11-14 | 1988-05-26 | Mitsubishi Electric Corp | LASER MARKING PROCEDURE |
US4765656A (en) * | 1985-10-15 | 1988-08-23 | Gao Gesellschaft Fur Automation Und Organisation Mbh | Data carrier having an optical authenticity feature and methods for producing and testing said data carrier |
DE4008398A1 (en) * | 1990-03-16 | 1991-09-19 | Messer Griesheim Gmbh | METHOD FOR LABELING OR MARKING |
DE19902469A1 (en) * | 1999-01-22 | 2000-08-03 | Erbsloeh Ag | Color contrast is created on anodized aluminum, e.g. to form inscriptions, logos or patterns on automobile or consumer product trim, by electromagnetic radiation energy input without surface removal |
DE10316034A1 (en) * | 2003-04-07 | 2004-12-30 | Bundesdruckerei Gmbh | Method for generating information, carrier body in which the information is generated, and use of such a carrier body |
CN102442082A (en) * | 2011-09-30 | 2012-05-09 | 武汉华工激光工程有限责任公司 | Device and method for marking on aluminium alloy anode layer surface by utilizing laser |
WO2018072881A3 (en) * | 2016-10-21 | 2018-06-14 | Giesecke+Devrient Currency Technology Gmbh | Security element, and method for producing a security element |
DE102021206866A1 (en) | 2021-06-30 | 2023-01-05 | Pepperl+Fuchs Se | Device for presenting a code and method of manufacturing such a device |
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AU584563B2 (en) * | 1986-01-31 | 1989-05-25 | Ciba-Geigy Ag | Laser marking of ceramic materials, glazes, glass ceramics and glasses |
FR2707077A1 (en) * | 1993-06-28 | 1995-01-06 | Alsthom Cge Alcatel | Process for producing aluminized structures on an aluminum nitride substrate |
US6590183B1 (en) | 1999-11-11 | 2003-07-08 | Koninklijke Philips Electronics N.V. | Marking of an anodized layer of an aluminum object |
DE10126846A1 (en) * | 2001-06-01 | 2002-12-05 | Siemens Ag | Component used in vehicle air bag and ABS control systems comprises a metal base body, and a code for characterizing the component |
US8367304B2 (en) | 2008-06-08 | 2013-02-05 | Apple Inc. | Techniques for marking product housings |
US9173336B2 (en) | 2009-05-19 | 2015-10-27 | Apple Inc. | Techniques for marking product housings |
US8663806B2 (en) | 2009-08-25 | 2014-03-04 | Apple Inc. | Techniques for marking a substrate using a physical vapor deposition material |
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US10071583B2 (en) | 2009-10-16 | 2018-09-11 | Apple Inc. | Marking of product housings |
US9845546B2 (en) | 2009-10-16 | 2017-12-19 | Apple Inc. | Sub-surface marking of product housings |
US20110089039A1 (en) * | 2009-10-16 | 2011-04-21 | Michael Nashner | Sub-Surface Marking of Product Housings |
US8809733B2 (en) | 2009-10-16 | 2014-08-19 | Apple Inc. | Sub-surface marking of product housings |
US20120248001A1 (en) | 2011-03-29 | 2012-10-04 | Nashner Michael S | Marking of Fabric Carrying Case for Portable Electronic Device |
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US20130075126A1 (en) * | 2011-09-27 | 2013-03-28 | Michael S. Nashner | Laser Bleached Marking of Dyed Anodization |
US10071584B2 (en) | 2012-07-09 | 2018-09-11 | Apple Inc. | Process for creating sub-surface marking on plastic parts |
US9314871B2 (en) | 2013-06-18 | 2016-04-19 | Apple Inc. | Method for laser engraved reflective surface structures |
US9434197B2 (en) | 2013-06-18 | 2016-09-06 | Apple Inc. | Laser engraved reflective surface structures |
DE102017107319B3 (en) * | 2017-04-05 | 2018-06-21 | WKW Erbslöh Automotive GmbH | Method for producing filigree designs and component produced by this method |
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Cited By (12)
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US4765656A (en) * | 1985-10-15 | 1988-08-23 | Gao Gesellschaft Fur Automation Und Organisation Mbh | Data carrier having an optical authenticity feature and methods for producing and testing said data carrier |
DE3738330A1 (en) * | 1986-11-14 | 1988-05-26 | Mitsubishi Electric Corp | LASER MARKING PROCEDURE |
US4861620A (en) * | 1986-11-14 | 1989-08-29 | Mitsubishi Denki Kabushiki Kaisha | Method of laser marking |
DE4008398A1 (en) * | 1990-03-16 | 1991-09-19 | Messer Griesheim Gmbh | METHOD FOR LABELING OR MARKING |
DE19902469A1 (en) * | 1999-01-22 | 2000-08-03 | Erbsloeh Ag | Color contrast is created on anodized aluminum, e.g. to form inscriptions, logos or patterns on automobile or consumer product trim, by electromagnetic radiation energy input without surface removal |
DE19902469C2 (en) * | 1999-01-22 | 2001-03-15 | Erbsloeh Ag | Process for creating color contrasts on aluminum material with anodized surfaces |
DE10316034A1 (en) * | 2003-04-07 | 2004-12-30 | Bundesdruckerei Gmbh | Method for generating information, carrier body in which the information is generated, and use of such a carrier body |
CN102442082A (en) * | 2011-09-30 | 2012-05-09 | 武汉华工激光工程有限责任公司 | Device and method for marking on aluminium alloy anode layer surface by utilizing laser |
WO2018072881A3 (en) * | 2016-10-21 | 2018-06-14 | Giesecke+Devrient Currency Technology Gmbh | Security element, and method for producing a security element |
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CN109562635B (en) * | 2016-10-21 | 2021-07-20 | 捷德货币技术有限责任公司 | Security element and method and device for producing a security element |
DE102021206866A1 (en) | 2021-06-30 | 2023-01-05 | Pepperl+Fuchs Se | Device for presenting a code and method of manufacturing such a device |
Also Published As
Publication number | Publication date |
---|---|
JPS60248895A (en) | 1985-12-09 |
EP0121150A1 (en) | 1984-10-10 |
CA1219122A (en) | 1987-03-17 |
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