CH454678A - Process for coating body surfaces - Google Patents
Process for coating body surfacesInfo
- Publication number
- CH454678A CH454678A CH843467A CH843467A CH454678A CH 454678 A CH454678 A CH 454678A CH 843467 A CH843467 A CH 843467A CH 843467 A CH843467 A CH 843467A CH 454678 A CH454678 A CH 454678A
- Authority
- CH
- Switzerland
- Prior art keywords
- resin layer
- synthetic resin
- thermally curable
- sprayed
- curable synthetic
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/02—Processes for applying liquids or other fluent materials performed by spraying
- B05D1/08—Flame spraying
- B05D1/10—Applying particulate materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
- B05D5/02—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain a matt or rough surface
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
- B29C59/02—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/52—Multiple coating or impregnating multiple coating or impregnating with the same composition or with compositions only differing in the concentration of the constituents, is classified as single coating or impregnation
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/60—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only artificial stone
- C04B41/61—Coating or impregnation
- C04B41/70—Coating or impregnation for obtaining at least two superposed coatings having different compositions
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- 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
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2601/00—Inorganic fillers
- B05D2601/20—Inorganic fillers used for non-pigmentation effect
- B05D2601/26—Abrasives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/12—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by mechanical means
Description
Verfahren zum Beschichten von Körperoberflächen
Die vorliegende Erfindung bezieht sich auf ein Verfahren zum Beschichten von Körperoberflächen unter Verwendung von Bindemittelschichten, die auf die Unterlage aufgebracht werden. Die Erfindung zeigt einen technisch fortschrittlichen Weg, wie eine solche Bindemittelschicht extrem innig mit ihrer Unterlage verbunden werden und ausserdem durch Anlagerung bzw. Einlagerung von besonders korrosionsfestem Material unter rascher Härtung vergütet werden kann.
Erfindungsgemäss ist vorgesehen, dass auf eine Schicht von flüssigem oder plastischem, aber thermisch aushärtbarem Bindemittel, vorzugsweise eine Epoxyharzschicht mit Härterzusatz, heisse Partikel eines Vergütungsmaterials unter Druck aufgespritzt werden.
Die Temperatur der aufgespritzten Partikel soll dabei mindestens 200 "C betragen. Vorzugsweise ist vorgesehen, dass die aufgespritzten Partikel sogar Temperaturen in der Grössenordnung von 400-600 C haben sollen, um praktisch zeitverzugsfrei beim Auftreffen, bzw. Eindringen in das flüssige, bzw. plastische Kunstharzmaterial, dessen intensive Aushärtung in Gang zu setzen.
Weil es sich bei einer solchen Aushärtung um einen exothermen Vorgang handelt, setzt er sich von den Partikelchen aus im Harz nach allen Richtungen fort, sodass eine rasche und vollständige Aushärtung des Kunstharzes an den bespritzten Stellen gewährleistet ist.
Unter der Stosswirkung der unter hohem Druck in einem harten Stahl aufgespritzten heissen Partikel erfolgt gleichzeitig mit dem Auftreffen der Partikel ein inniges Verbinden der noch flüssigen, bzw. plastischen Kunstharzmasse mit deren Unterlage, also vor allem ein Hineintreiben des Kunstharzes in Oberflächenunebenheiten des zu beschichtenden Körpers und eine wirksame Zerstörung aller allfällig noch vorhandenen Luftblasen, was die bestmöglichsten Voraussetzungen für die Erzielung einer möglichst hohen Haftfestigkeit der sich aus dem erhärtenden Kunstharz und dem darauf gespritzten Partikeln bildenden Schutzschicht schafft.
Der Charakter der so gebildeten Schutzschicht hängt natürlich in grossem Mass ausser von der Art des als Bindemittelschicht verwendeten Kunstharzes auch von der Natur der aufgespritzten Partikel ab. Zur Erzielung einer griffigen, rauhen Schutzschicht ist es beispielsweise vorteilhaft, Quarzsand oder evtl. anderen Mineralsand einer Korngrösse von mindestens 0,4 mm bis ca. 1,0 mm aufzuspritzen. Es können dazu bekannte Sandstrahleinrichtungen verwendet werden, wobei aber darauf zu achten ist, dass der eingefüllte Mineralsand eine ausreichend hohe Temperatur hat. Es ist auch ohne besondere Schwierigkeiten möglich, bekannte Flammspritzeinrich- tungen so zu gestalten, dass sie nicht nur zum Metallspritzen, sondern auch zum Spritzen und gleichzeitigen Erhitzen von Quarzsand oder dergleichen verwendbar sind.
Von ganz besonderem Vorteil ist aber das Aufspritzen von Aluminium mit Flammspritzvorrichtungen, weil dadurch die an sich bekannte chemische Unempfindlichkeit des weitgehend zu Alu-oxyd verbrannten Alumetalls und der vielfach erwünschte metallische und geschlossene Charakter der beim Flammspritzen von Aluminium erzielbaren Schutzschicht kombiniert wird mit der besonders guten Haftfähigkeit und der guten inneren Zugfestigkeit und Dichte einer erhärteten Kunstharzschicht. Dabei kann vorgesehen werden, dass in einer ersten Verfahrensstufe am Körper eine rauhe Sandschicht erzeugt wird, und dass in einem zweiten Verfahrensschritt darüber eine Epoxydharzschicht und diese ihrerseits mittels einer Flammspritzvorrichtung metallisiert wird, vorzugsweise mit Aluminium- oder Aluminiumoxyd-Material.
Als Anwendungsgebiet für das erläuterte Verfahren kommt vor allem das Baugewerbe zur Erzielung von dichten, hochwiderstandsfähigen Schutzbelägen auf Mauerwerk oder Bodenplatten, auch z. B. von Asbestzementplatten in Frage.
Process for coating body surfaces
The present invention relates to a method of coating body surfaces using binder layers which are applied to the base. The invention shows a technically advanced way of how such a binder layer can be bonded extremely closely to its base and, moreover, can be remedied by the addition or storage of particularly corrosion-resistant material with rapid hardening.
According to the invention, it is provided that hot particles of a coating material are sprayed under pressure onto a layer of liquid or plastic, but thermally curable binder, preferably an epoxy resin layer with added hardener.
The temperature of the sprayed-on particles should be at least 200 ° C. It is preferably provided that the sprayed-on particles should even have temperatures of the order of magnitude of 400-600 ° C. in order to have practically no delay when they hit or penetrate the liquid or plastic Resin material, the intensive hardening of which is to start
Because such curing is an exothermic process, it continues from the particles in the resin in all directions, so that rapid and complete curing of the synthetic resin at the sprayed areas is ensured.
Under the impact of the hot particles sprayed on under high pressure in a hard steel, the still liquid or plastic synthetic resin compound is intimately bonded to the substrate at the same time as the particles hit, i.e. above all the synthetic resin is driven into the surface unevenness of the body to be coated and an effective destruction of any air bubbles that may still be present, which creates the best possible conditions for achieving the highest possible adhesive strength of the protective layer formed from the hardening synthetic resin and the particles sprayed on it.
The character of the protective layer thus formed naturally depends to a large extent not only on the type of synthetic resin used as the binder layer but also on the nature of the particles sprayed on. To achieve a rough protective layer with good grip, it is advantageous, for example, to spray on quartz sand or possibly other mineral sand with a grain size of at least 0.4 mm to approx. 1.0 mm. Known sandblasting devices can be used for this purpose, but care must be taken that the mineral sand filled in has a sufficiently high temperature. It is also possible without any particular difficulties to design known flame spraying devices in such a way that they can be used not only for spraying metal, but also for spraying and simultaneously heating quartz sand or the like.
The spraying of aluminum with flame spraying devices is particularly advantageous, because it combines the known chemical insensitivity of the aluminum metal, which is largely burned to aluminum oxide, and the often desired metallic and closed character of the protective layer that can be achieved with the flame spraying of aluminum with the particularly good one Adhesiveness and the good internal tensile strength and density of a hardened synthetic resin layer. It can be provided that a rough sand layer is produced on the body in a first process step, and that in a second process step an epoxy resin layer over it and this in turn is metallized by means of a flame spray device, preferably with aluminum or aluminum oxide material.
The area of application for the method explained is mainly the construction industry to achieve dense, highly resistant protective coverings on masonry or floor slabs, including e.g. B. of asbestos cement panels in question.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE720943 | 1968-09-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH454678A true CH454678A (en) | 1968-04-15 |
Family
ID=3853525
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH843467A CH454678A (en) | 1968-09-16 | 1967-06-14 | Process for coating body surfaces |
Country Status (2)
Country | Link |
---|---|
BE (1) | BE720943A (en) |
CH (1) | CH454678A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2560792A1 (en) * | 1984-03-12 | 1985-09-13 | Commissariat Energie Atomique | process for making a coated article using hot spraying, which can be used especially for the production of articles made from composite material which are provided with a refractory covering |
FR2658830A1 (en) * | 1990-02-28 | 1991-08-30 | Niel Andre | Process for coating an article with a filled heat-curable resin |
EP1527869A1 (en) * | 2003-10-31 | 2005-05-04 | Karl Heinz Dipl.-Ing. Otte | Process for treating of plastic surfaces, in particular for pre-treating before metal-coating |
-
1967
- 1967-06-14 CH CH843467A patent/CH454678A/en unknown
-
1968
- 1968-09-16 BE BE720943D patent/BE720943A/xx unknown
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2560792A1 (en) * | 1984-03-12 | 1985-09-13 | Commissariat Energie Atomique | process for making a coated article using hot spraying, which can be used especially for the production of articles made from composite material which are provided with a refractory covering |
FR2658830A1 (en) * | 1990-02-28 | 1991-08-30 | Niel Andre | Process for coating an article with a filled heat-curable resin |
EP1527869A1 (en) * | 2003-10-31 | 2005-05-04 | Karl Heinz Dipl.-Ing. Otte | Process for treating of plastic surfaces, in particular for pre-treating before metal-coating |
Also Published As
Publication number | Publication date |
---|---|
BE720943A (en) | 1969-03-03 |
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