CH635526A5 - METHOD FOR COATING IRON AND STEEL. - Google Patents
METHOD FOR COATING IRON AND STEEL. Download PDFInfo
- Publication number
- CH635526A5 CH635526A5 CH693878A CH693878A CH635526A5 CH 635526 A5 CH635526 A5 CH 635526A5 CH 693878 A CH693878 A CH 693878A CH 693878 A CH693878 A CH 693878A CH 635526 A5 CH635526 A5 CH 635526A5
- Authority
- CH
- Switzerland
- Prior art keywords
- lacquer
- paint
- coating
- magnet
- lacquers
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 26
- 238000000576 coating method Methods 0.000 title claims description 15
- 239000011248 coating agent Substances 0.000 title claims description 13
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims description 10
- 229910052742 iron Inorganic materials 0.000 title claims description 5
- 239000003973 paint Substances 0.000 claims description 18
- 239000004922 lacquer Substances 0.000 claims description 17
- 230000005291 magnetic effect Effects 0.000 claims description 11
- 238000007654 immersion Methods 0.000 claims description 10
- 229920005989 resin Polymers 0.000 claims description 9
- 239000011347 resin Substances 0.000 claims description 9
- 239000000049 pigment Substances 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 230000005294 ferromagnetic effect Effects 0.000 claims description 6
- 239000000725 suspension Substances 0.000 claims description 6
- 229920003002 synthetic resin Polymers 0.000 claims description 6
- 239000000057 synthetic resin Substances 0.000 claims description 6
- 229920001169 thermoplastic Polymers 0.000 claims description 5
- 239000004416 thermosoftening plastic Substances 0.000 claims description 5
- 238000005260 corrosion Methods 0.000 claims description 4
- 238000010422 painting Methods 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 4
- 239000011230 binding agent Substances 0.000 claims description 3
- 230000007797 corrosion Effects 0.000 claims description 3
- 238000007598 dipping method Methods 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- 229920000877 Melamine resin Polymers 0.000 claims description 2
- 229920001807 Urea-formaldehyde Polymers 0.000 claims description 2
- 239000007900 aqueous suspension Substances 0.000 claims description 2
- 230000008021 deposition Effects 0.000 claims description 2
- 239000003822 epoxy resin Substances 0.000 claims description 2
- 238000009472 formulation Methods 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- 229920001568 phenolic resin Polymers 0.000 claims description 2
- 229920000647 polyepoxide Polymers 0.000 claims description 2
- 230000037452 priming Effects 0.000 claims description 2
- 239000002966 varnish Substances 0.000 claims description 2
- 239000002245 particle Substances 0.000 claims 3
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims 1
- GZCGUPFRVQAUEE-SLPGGIOYSA-N aldehydo-D-glucose Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C=O GZCGUPFRVQAUEE-SLPGGIOYSA-N 0.000 claims 1
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 230000007547 defect Effects 0.000 claims 1
- 210000003298 dental enamel Anatomy 0.000 claims 1
- 238000001962 electrophoresis Methods 0.000 claims 1
- 239000003995 emulsifying agent Substances 0.000 claims 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims 1
- 239000013008 thixotropic agent Substances 0.000 claims 1
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 4
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 2
- 239000004841 bisphenol A epoxy resin Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- SZVJSHCCFOBDDC-UHFFFAOYSA-N ferrosoferric oxide Chemical compound O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 235000013162 Cocos nucifera Nutrition 0.000 description 1
- 244000060011 Cocos nucifera Species 0.000 description 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 239000008199 coating composition Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 230000009189 diving Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 235000011187 glycerol Nutrition 0.000 description 1
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 1
- 239000001034 iron oxide pigment Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 239000004848 polyfunctional curative Substances 0.000 description 1
- 229920001451 polypropylene glycol Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000005028 tinplate Substances 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- B05D3/20—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 magnetic fields
-
- 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
- B05D1/002—Processes for applying liquids or other fluent materials the substrate being rotated
-
- 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
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
-
- 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
- B05D2401/00—Form of the coating product, e.g. solution, water dispersion, powders or the like
- B05D2401/20—Aqueous dispersion or solution
-
- 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
- B05D2601/28—Metals
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Paints Or Removers (AREA)
Description
Die Aufgabe der Erfindung liegt darin, ein Verfahren zum Beschichten von Eisen- und Stahlgegenständen zu finden, das die geschilderten Nachteile der bekannten Beschich-tungsverfahren nicht aufweist. Die Auftragung des Lackes soll gezielt entweder homogen oder in einer Weise erfolgen, welche auch eine Abscheidung des Lackes in grösserer Schichtstärke im Bereich scharfer Kanten und Ecken gegenüber den übrigen Flächenteilen des Gegenstandes ermöglicht. Durch diese grössere Schichtstärke soll eine spätere Korrosion im an sich für Korrosion besonders anfälligen Bereich scharfer Kanten weitgehend ausgeschlossen bzw. verringert werden. The object of the invention is to find a method for coating iron and steel objects which does not have the disadvantages of the known coating methods described. The coating should be applied either homogeneously or in a manner that also enables the coating to be deposited in a thicker layer in the area of sharp edges and corners compared to the other surface parts of the object. This greater layer thickness is intended to largely preclude or reduce subsequent corrosion in the area of sharp edges which is particularly susceptible to corrosion.
Gegenstand der Erfindung ist ein Verfahren zum Beschichten von Eisen- oder Stahlgegenständen mit Lacken unter homogener und verstärkter Abscheidung des Lackes im Bereich von Kanten, Ecken, Spitzen durch Tauchen, Fluten oder Spritzen, welches dadurch gekennzeichnet ist, dass man a) einen solchen Lack verwendet, welcher mindestens ein ferromagnetisches Pigment enthält, und b) die Beschichtung in der Weise in einem inhomogenen magnetischen Feld durchführt, dass sich die Kanten, Ecken, Spitzen im Bereich erhöhter Feldliniendichte befinden, wobei der mit Lack zu beschichtende Gegenstand entweder selbst Teil eines Magneten oder durch engen Kontakt mit einem Magneten praktisch Teil des Magneten ist oder aber sich der mit Lack zu beschichtende Gegenstand zwischen Magnetpolen befindet. The invention relates to a method for coating iron or steel objects with lacquers with homogeneous and reinforced deposition of the lacquer in the region of edges, corners, tips by dipping, flooding or spraying, which is characterized in that a) such a lacquer is used , which contains at least one ferromagnetic pigment, and b) the coating is carried out in an inhomogeneous magnetic field in such a way that the edges, corners, tips are in the region of increased field line density, the object to be coated either being part of a magnet itself or due to close contact with a magnet is practically part of the magnet or the object to be coated with paint is located between magnetic poles.
Als geeignete ferromagnetische Pigmente für das erfin-dungsgemässe Verfahren sind insbesondere die Eisenoxidfarbpigmente, wie Eisenoxidschwarz, -braun und -rot zu nennen. Aber auch Nickelpulver ist hier anzuführen. Suitable ferromagnetic pigments for the process according to the invention include, in particular, iron oxide color pigments, such as iron oxide black, brown and red. But nickel powder is also to be mentioned here.
Die Konzentration des eingesetzten Lackes an dem fer-romagnetischen Pigment liegt erfindungsgemäss zwischen 5 und 70 Gew.-%, bezogen auf das Bindemittel des jeweiligen Lackes, wobei als Bindemittel das Grundharz gegebenenfalls im Gemisch mit dem zugehörigen Härter zu verstehen ist. Der Lack kann auch mehrere ferromagnetische Pigmente gleichzeitig enthalten. Ferner kann der Lack andere übliche Lackpigmente und/oder -additive enthalten. According to the invention, the concentration of the paint used on the ferromagnetic pigment is between 5 and 70% by weight, based on the binder of the respective paint, the binder being understood as meaning the base resin, if appropriate in a mixture with the associated hardener. The varnish can also contain several ferromagnetic pigments at the same time. The paint may also contain other customary paint pigments and / or additives.
Das erfindungsgemässe Verfahren lässt sich praktisch bei allen Lackierungsmethoden, so beispielsweise auch bei Pul-verbeschichtungsverfahren, anwenden. Bevorzugt wirdes jedoch für solche Methoden angewandt, bei denen flüssige Lacke, insbesondere wässrige Systeme, eingesetzt werden. Besonders ausgeprägt ist der technische Effekt der Erfindung bei Einsatz von wässrigen Lacksuspensionen. Grundsätzlich sind Lacke geeignet, welche als Grundharze Thermoplaste enthalten und auch solche, bei welchen die Grundharze härtbare Kunstharze sind. Grundharze auf Thermoplast-Basis sind beispielsweise gesättigte Polyester, PVC, Polyvinyl-propionat, Polyamide und Polyacrylate. Als härtbare Kunstharze sind insbesondere Epoxidharze, Phenol-Formaldehyd-Harze, Harnstoff-Formaldehyd-Harze und Melamin-Form-aldehyd-Harze, gegebenenfalls in Verbindung mit für die Härtung erforderlichen Komponenten zu nennen. Sowohl die Grundharze auf Thermoplast-Basis als auch die Grundharze auf der Basis von duroplastischen Kunstharzen können auch mehrere Harze der jeweiligen Harzklasse gleichzeitig enthalten. The process according to the invention can be used in practically all painting methods, for example also in powder coating processes. However, it is preferably used for those methods in which liquid lacquers, in particular aqueous systems, are used. The technical effect of the invention is particularly pronounced when using aqueous paint suspensions. Basically, lacquers are suitable which contain thermoplastics as base resins and also those in which the base resins are hardenable synthetic resins. Basic resins based on thermoplastic are, for example, saturated polyesters, PVC, polyvinyl propionate, polyamides and polyacrylates. Epoxy resins, phenol-formaldehyde resins, urea-formaldehyde resins and melamine-form aldehyde resins, if appropriate in conjunction with components required for the curing, may be mentioned as hardenable synthetic resins. Both the base resins based on thermoplastic and the base resins based on thermosetting synthetic resins can also contain several resins of the respective resin class at the same time.
Das erfindungsgemässe Verfahren kann beispielsweise für die Lackierung und insbesondere die Grundierung mit Primern von Karrosserien, Maschinen und Apparaten und Teilen derselben und von Stahlmöbeln zur Anwendung kommen. Es wird vorzugsweise bei den Auftagsmethoden Tauchen und Fluten angewandt. Grundsätzlich kann es jedoch auch bei Auftragsmethoden, welche keine grosse technische Bedeutung haben, angewandt werden, wie beispielsweise beim Spritzen oder beim Anstreichen mittels Pinsel. The method according to the invention can be used, for example, for painting and in particular for priming bodywork, machines and apparatus and parts thereof and steel furniture. It is preferably used for the diving and flooding application methods. In principle, however, it can also be used for application methods that are not of great technical importance, such as spraying or painting with a brush.
2 2nd
s io s io
15 15
20 20th
25 25th
30 30th
35 35
40 40
45 45
50 50
55 55
60 60
65 65
Die Erfindung wird anhand der nachfolgenden Beispiele näher erläutert. The invention is illustrated by the following examples.
Beispiel 1 example 1
650 g eines festen Bisphenol-A-Epoxidharzes (Epoxid-Gehalt = 0,6 Mol/kg), 350 g eines gesättigten Polyesters (Säurezahl ca. 50, Schmelzpunkt ca. 95 °C), 650 g Eisenoxidrot (Fa. BAYER, Typ 130 F) sowie 5 g Verlaufmittel (Modaflow, Fa. Monsanto) werden in einem Ko-Kneter (Fa. Buss AG, Schweiz) zusammengeschmolzen und die Masse nach dem Abkühlen auf eine Korngrösse von ca. 100 um gemahlen. Aus diesem Pulver wird durch Zugabe von Wasser eine Aufschlämmung mit einem Festkörpergehalt von ca. 40 Gew.-% bereitet, welche anschliessend in einer Perlmühle weiter gemahlen wird bis zu einer Korngrösse von ca. 10 [im. Nach Zugabe von 50 g Glyzerin wird in die Suspension ein phosphatiertes («bonderisiertes») Stahlblech getaucht, wobei das Tauchbad gemäss Fig. 1 mit einem Elektromagneten ausgerüstet ist. Nach wenigen Sekunden wird das mit Lack beschichtete Blech aus der Suspension gezogen und bei Raumtemperatur 10 Minuten getrocknet. Danach wird 10 Minuten bei 200 °C eingebrannt. Das Blech zeigt nach dem Einbrennen eine einwandfreie, insbesondere porenfreie, Bedeckung aller Kanten und Flächen mit Lack. 650 g of a solid bisphenol A epoxy resin (epoxy content = 0.6 mol / kg), 350 g of a saturated polyester (acid number approx. 50, melting point approx. 95 ° C), 650 g iron oxide red (from BAYER, type 130 F) and 5 g of leveling agent (Modaflow, Monsanto) are melted together in a co-kneader (Buss AG, Switzerland) and the mass is ground after cooling to a grain size of approx. 100 µm. A slurry with a solids content of approx. 40% by weight is prepared from this powder by adding water, which is then further ground in a bead mill up to a grain size of approx. 10 [im. After adding 50 g of glycerin, a phosphated (“bonderized”) steel sheet is dipped into the suspension, the dipping bath according to FIG. 1 being equipped with an electromagnet. After a few seconds, the sheet coated with paint is pulled out of the suspension and dried at room temperature for 10 minutes. Then it is baked at 200 ° C for 10 minutes. After baking, the sheet shows a perfect, especially non-porous, covering of all edges and surfaces with paint.
Beispiel 2 Example 2
Es wird verfahren wie in Beispiel 1, jedoch mit vertauschten Magnetpolen (Umkehrung der Stromrichtung in der Magnetspule). Das Ergebnis ist gleich gut wie in Beispiel 1. The procedure is as in Example 1, but with reversed magnetic poles (reversal of the current direction in the magnetic coil). The result is the same as in example 1.
Beispiel 3 (V ergleichsbeispiel) Example 3 (comparative example)
Es wird verfahren wie in Beispiel 1, jedoch wird der Tauchvorgang in Abwesenheit des künstlichen Magnetfeldes ausgeführt (Abschalten des Stromes in der Magnetspule). Die Kanten des eingebrannten Bleches sind teilweise blank und zeigen viele Poren. The procedure is as in Example 1, but the immersion process is carried out in the absence of the artificial magnetic field (switching off the current in the magnet coil). The edges of the burned-in sheet are partially bare and show many pores.
Beispiel 4 Example 4
Eine Mischung aus 600 g eines festen Bisphenol-A-Epoxidharzes (Epoxid-Gehalt =1,0 Mol/kg), 5 g «Uresin B» (Verlaufsmittel der Fa. Hoechst), 300 g Benzoguanamin-me-thyl-olmethyläther, 200 g Ti02 und 300 g Eisenoxidschwarz (Bayer, Typ 216 F) wird, wie in Beispiel 1, zu einer wässerigen Suspension verarbeitet. Nach Zusatz von 1,5 g Amino-kokosfettsäure-oxäthylat und 50 g Polypropylenglykol zu der 40%igen Suspension wird die so entstandene Formulierung in folgender Weise für die Beschichtung eines tiefgezogenen Weissblechnapfes verwendet. A mixture of 600 g of a solid bisphenol-A epoxy resin (epoxy content = 1.0 mol / kg), 5 g of "Uresin B" (leveling agent from Hoechst), 300 g of benzoguanamine-methyl-olmethyl ether, 200 g Ti02 and 300 g iron oxide black (Bayer, type 216 F) are processed, as in Example 1, to form an aqueous suspension. After adding 1.5 g of amino coconut fatty acid oxyethylate and 50 g of polypropylene glycol to the 40% suspension, the resulting formulation is used in the following manner for coating a deep-drawn tinplate bowl.
635 526 635 526
In den Napf wird gemäss Fig. 2 zentral auf den Boden ein Stabmagnet in der Weise gestellt, dass der Südpol nach oben zeigt, so dass der Nordpol fest an dem Napfboden haftet und letzterer praktisch Teil eines grösseren Verbundmagneten wird. Der mit dem Magneten verbundene Napf wird nun (wie aus Fig. 2 ersichtlich) geneigt und in die Lacksuspension gesenkt. Der gesamte Körper wird um die Längsachse des Magneten gedreht, so dass der Napf bis auf einen zentralen Bereich, welcher nicht lackiert werden soll, nach der Tauchmethode mit Lack beschichtet wird. Anschliessend erfolgen Trocknung und einbrennen nach der in Beispiel 1 beschriebenen Weise. Es resultiert ein homogener Film mit porenfreier Kantendeckung. According to FIG. 2, a bar magnet is placed in the center of the bowl in such a way that the south pole points upwards, so that the north pole adheres firmly to the bowl bottom and the latter practically becomes part of a larger bonded magnet. The bowl connected to the magnet is now inclined (as can be seen in FIG. 2) and lowered into the lacquer suspension. The entire body is rotated around the longitudinal axis of the magnet, so that the bowl is coated with paint except for a central area that is not to be painted. This is followed by drying and baking in the manner described in Example 1. The result is a homogeneous film with pore-free edge coverage.
Beispiel 5 (Vergleichsbeispiel) Example 5 (comparative example)
Es wird verfahren wie in Beispiel 4, nur mit dem Unterschied, dass das Eisenoxidpigment durch die gleiche Menge Ti02 ersetzt wird. Der entstehende Lackfilm ist zum grossen Teil ebenfalls homogen. Die Kanten des Probebleches sind jedoch teilweise blank und zeigen viele Poren. The procedure is as in Example 4, with the difference that the iron oxide pigment is replaced by the same amount of TiO 2. The resulting paint film is also largely homogeneous. However, the edges of the sample sheet are partially bare and show many pores.
Beispiel 6 Example 6
An zwei Spulen Mj und M2 wird gemäss Fig. 3 eine Gleichstromquelle angelegt, derart, dass beide Spulen gleichsinnig von einem elektrischen Strom durchflössen werden. In das zwischen den Spulen entstehende magnetische Feld wird ein Tauchbad plaziert und mit einer Beschichtungsformulie-rung gemäss Beispiel 1 gefüllt. Ein Probeblech (P) aus Stahl wird in das Tauchbad gesenkt und wieder gehoben. Nach dem üblichen Vortrocknen und Einbrennen der Beschichtung zeigt das Blech eine einwandfreie, insbesondere porenfreie Bedeckung aller Kanten und Flächen mit Lack. According to FIG. 3, a direct current source is applied to two coils Mj and M2 in such a way that an electrical current flows through both coils in the same direction. An immersion bath is placed in the magnetic field arising between the coils and filled with a coating formulation according to Example 1. A steel test sheet (P) is lowered into the immersion bath and raised again. After the usual pre-drying and baking of the coating, the sheet shows a perfect, especially non-porous covering of all edges and surfaces with paint.
Beispiel 7 Example 7
Der gleiche Versuch wird unter Anwendung einer elektrischen Wechselspannung durchgeführt, was zum gleichen Ergebnis führt. The same experiment is carried out using an alternating electrical voltage, which leads to the same result.
Die Ausführungsformen der Beispiele 1,4 und 6 sind in den Figuren 1 bis 3 weiter erläutert. The embodiments of examples 1, 4 and 6 are further explained in FIGS. 1 to 3.
Fig. 1 stellt dar, wie das Tauchbad mit der Magnetspule verbunden ist und die zu beschichtende Probe im Magnetfeld in das Tauchbad eingeführt ist. 1 shows how the immersion bath is connected to the magnetic coil and the sample to be coated is introduced into the immersion bath in the magnetic field.
Fig. 2 zeigt die sich in einem Tauchbad befindende und mit einem Stabmagnet verbundene zu beschichtende Probe. 2 shows the sample to be coated which is in an immersion bath and is connected to a bar magnet.
Fig. 3 zeigt das in ein Magnetfeld gestellte Tauchbad, in das die zu beschichtende Probe eingeführt ist. 3 shows the immersion bath placed in a magnetic field, into which the sample to be coated is introduced.
3 3rd
5 5
10 10th
15 15
20 20th
25 25th
30 30th
35 35
40 40
45 45
S S
2 Blatt Zeichnungen 2 sheets of drawings
Claims (8)
Priority Applications (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH693878A CH635526A5 (en) | 1978-06-26 | 1978-06-26 | METHOD FOR COATING IRON AND STEEL. |
| GB7921708A GB2027365B (en) | 1978-06-26 | 1979-06-21 | Process for lacquer-coating iron and steel |
| CA330,334A CA1129262A (en) | 1978-06-26 | 1979-06-22 | Process for lacquer-coating iron and steel |
| DE19792925343 DE2925343A1 (en) | 1978-06-26 | 1979-06-22 | METHOD FOR PAINTING IRON AND STEEL |
| IT23838/79A IT1165112B (en) | 1978-06-26 | 1979-06-25 | PROCEDURE FOR IRON AND STEEL PAINTING |
| FR7916237A FR2429622A1 (en) | 1978-06-26 | 1979-06-25 | PROCESS FOR LACQUERING IRON AND STEEL |
| NL7904968A NL7904968A (en) | 1978-06-26 | 1979-06-26 | METHOD FOR PAINTING IRON AND STEEL. |
| JP8065579A JPS555793A (en) | 1978-06-26 | 1979-06-26 | Method of painting lacquer on iron or steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH693878A CH635526A5 (en) | 1978-06-26 | 1978-06-26 | METHOD FOR COATING IRON AND STEEL. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH635526A5 true CH635526A5 (en) | 1983-04-15 |
Family
ID=4317407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH693878A CH635526A5 (en) | 1978-06-26 | 1978-06-26 | METHOD FOR COATING IRON AND STEEL. |
Country Status (7)
| Country | Link |
|---|---|
| JP (1) | JPS555793A (en) |
| CA (1) | CA1129262A (en) |
| CH (1) | CH635526A5 (en) |
| DE (1) | DE2925343A1 (en) |
| FR (1) | FR2429622A1 (en) |
| GB (1) | GB2027365B (en) |
| NL (1) | NL7904968A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56472B2 (en) * | 1973-04-21 | 1981-01-08 | ||
| GB8322710D0 (en) * | 1983-08-24 | 1983-09-28 | Shell Int Research | Preparing aqueous binder composition |
| US6428860B1 (en) * | 2001-05-11 | 2002-08-06 | Visteon Global Technologies, Inc. | Method for manufacturing magneto-rheological or electro-rheological substance-impregnated materials |
| US6581740B2 (en) | 2001-05-11 | 2003-06-24 | Visteon Global Technologies, Inc. | Multiple disc clutch pack having rheological film layer |
| US20130089733A1 (en) * | 2011-10-06 | 2013-04-11 | GM Global Technology Operations LLC | Structural panels stiffened by magnetically-assisted application of thick polymer coatings |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1359208A (en) * | 1963-03-09 | 1964-04-24 | Process for producing a coating on various items | |
| DE1546927A1 (en) * | 1964-08-28 | 1970-10-22 | Egli Dipl Ing Dr Jur Arnold R | Process for the production of layer coatings from thermoplastic masses on magnetic substrates as well as parts of devices for its execution |
| US3913520A (en) * | 1972-08-14 | 1975-10-21 | Precision Thin Film Corp | High vacuum deposition apparatus |
| CH568799A5 (en) * | 1973-09-29 | 1975-11-14 | Basf Ag | |
| US4021587A (en) * | 1974-07-23 | 1977-05-03 | Pram, Inc. | Magnetic and electrostatic transfer of particulate developer |
| US4024295A (en) * | 1975-04-07 | 1977-05-17 | Minnesota Mining And Manufacturing Company | Coating process utilizing propelled particles |
-
1978
- 1978-06-26 CH CH693878A patent/CH635526A5/en not_active IP Right Cessation
-
1979
- 1979-06-21 GB GB7921708A patent/GB2027365B/en not_active Expired
- 1979-06-22 DE DE19792925343 patent/DE2925343A1/en not_active Withdrawn
- 1979-06-22 CA CA330,334A patent/CA1129262A/en not_active Expired
- 1979-06-25 FR FR7916237A patent/FR2429622A1/en active Granted
- 1979-06-26 NL NL7904968A patent/NL7904968A/en not_active Application Discontinuation
- 1979-06-26 JP JP8065579A patent/JPS555793A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| JPS555793A (en) | 1980-01-16 |
| GB2027365A (en) | 1980-02-20 |
| CA1129262A (en) | 1982-08-10 |
| GB2027365B (en) | 1982-07-28 |
| FR2429622B1 (en) | 1983-07-29 |
| DE2925343A1 (en) | 1980-01-10 |
| NL7904968A (en) | 1979-12-28 |
| FR2429622A1 (en) | 1980-01-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0817684B1 (en) | Method of applying a multiple-layer enamelling | |
| DE2919130C3 (en) | Process for the electrophoretic coating of a metal surface | |
| EP1248823A1 (en) | Method for the anodic electrophoretic enamelling and electrophoretic paints | |
| DE1669243B2 (en) | A water-dispersed agent for coating electrically conductive surfaces and the use of this agent | |
| DE1644702A1 (en) | Aqueous coating compounds | |
| DE3821906A1 (en) | WELDING WITH CORROSION-RESISTANT COATING | |
| DE2925343A1 (en) | METHOD FOR PAINTING IRON AND STEEL | |
| DE1771417B2 (en) | PROCESS FOR ELECTRICALLY DEPOSITING A FILM-FORMING ORGANIC COATING MATERIAL ON AN ELECTRICALLY CONDUCTIVE WORKPIECE | |
| DE3009715C2 (en) | Use of binders to formulate primary fillers | |
| EP0033465B2 (en) | Method for producing an article consisting of an electrically conductive substrate and a coating with a metallic appearance adherently arranged thereon | |
| DE4018876A1 (en) | CATHODICALLY DEPOSIBLE ELECTRODESERDER PAINT BATHS WITH ADDITIVES FOR IMPROVING THE SURFACE, AND THE USE OF LATER FOR COATING METHODS | |
| DE1644690B2 (en) | TIN CAN BODY | |
| DE19523084A1 (en) | Aqueous powder coating dispersion for packaging containers | |
| EP0952894B1 (en) | Method for multi-layer painting | |
| DE3210540C1 (en) | Electrodeposition lacquers which can be deposited by cathode, process for their production and use | |
| DE1519167C3 (en) | Aqueous coating agent for electrophoretic deposition | |
| DE1546943B1 (en) | Electrophoretic deposition of synthetic resins on metals or other electrically conductive objects | |
| DE19623962C2 (en) | Electro dip coating for metallic bulk goods | |
| DE3314776C2 (en) | ||
| DE1519168C3 (en) | ||
| DE19929681A1 (en) | Electro-dip coating process comprises preparing an immersion bath of an acid-modified polyolefin resin, adjusting the pH of the bath, inserting a metal part into the bath, applying a voltage and depositing an insulating layer | |
| DE2041656B2 (en) | COATING MIXTURES FOR ELECTRIC COATING | |
| AT395605B (en) | METHOD FOR WATER-FREE BATHING IN SYSTEMS FOR CATHODIC ELECTRO-DIP PAINTING | |
| DE1298222B (en) | Coating agent for the anodic coating of electrically conductive workpieces | |
| DE3116404A1 (en) | Coating composition and process for cathodic electrodeposition |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PL | Patent ceased | ||
| PL | Patent ceased |