DE2202078A1 - Corrosion protective paints - contg epoxy ester binders - and alumini pigments for satisfactory welding - Google Patents
Corrosion protective paints - contg epoxy ester binders - and alumini pigments for satisfactory weldingInfo
- Publication number
- DE2202078A1 DE2202078A1 DE19722202078 DE2202078A DE2202078A1 DE 2202078 A1 DE2202078 A1 DE 2202078A1 DE 19722202078 DE19722202078 DE 19722202078 DE 2202078 A DE2202078 A DE 2202078A DE 2202078 A1 DE2202078 A1 DE 2202078A1
- Authority
- DE
- Germany
- Prior art keywords
- pts
- pigments
- epoxy ester
- contg
- welding
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
- C09D5/10—Anti-corrosive paints containing metal dust
- C09D5/103—Anti-corrosive paints containing metal dust containing Al
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
- D04B15/88—Take-up or draw-off devices for knitting products
- D04B15/885—Take-up or draw-off devices for knitting products for straight-bar knitting machines
Abstract
Description
Überschweißbare Korrosionsschutz-Anstrichstoffe Die Erfindung betrifft Korrosionsschutz-Anstrichstoffe, deren Filme den Schweißprozeß nicht beeinträchtigen und bei thermischer Beanspruchung arbeitshygienisch unbedenklich sind.Over-weldable anti-corrosion paints The invention relates to Corrosion protection paints whose films do not impair the welding process and are harmless in terms of occupational hygiene when exposed to thermal stress.
Die bisher bekannten überschweißbaren Grundierungen besitzen den Nachteil, daß sie beim Überschweißen zur Porenbildung in der Schweißnaht Anlaß geben. Das ist darauf zurückzuführen, daß die verwendeten Bindemittel der Grundierungen übersiegend aus organischen Stoffen bestehen, aus denen beim Schweißen wasserstoff frei wird.The previously known over-weldable primers have the disadvantage that they give rise to pore formation in the weld seam when they are welded over. That is due to the fact that the binders used predominate in the primers consist of organic substances that release hydrogen during welding.
Zusätzlich können in Grundierungen Pigmente vorhanden sein, die zwar die korrosionsschützende wirkung der Grundierung verbessern, sich aber nachteilig auf den Schweißprozeß (z.B. Zink- und Zinkverbindungen) und/oder auf die Gesundheit des Schweißers (z.B. Chrom oder Blei bzw. deren Verbindungen) auswirken. Das bekannte korrosionsschutzfördernde Pigment Aluminium kann sich demgegenüber vorteilhaft auf den Schweißprozeß auswirken, es veriaeidet jedoch nicht die Porengefahr.In addition, pigments may be present in primers, though improve the anti-corrosive effect of the primer, but this is disadvantageous on the welding process (e.g. zinc and zinc compounds) and / or on health of the welder (e.g. chrome or lead or their compounds). The known Corrosion protection promoting pigment aluminum can be advantageous on the other hand affect the welding process, but it does not avoid the risk of pores.
Grundierungsmittel, die darauf basieren, daß schädigende Auswirkungen, die beim Überschweißen auftreten, durch zusätzliche Beigaben zur Grundierung verhindert oder kompensiert werden, konnten den negativen Einfluß des Wasserstoffes aus dem Bindemittel nicht vermeiden. Bekannt dafür sind z.B. anorganische oder organische Flourverbindungen, die in vorhandene Grundierungen eingebaut werden. Andererseits ist es bekamt, daß clurch Sauerstoffzusatz zum Schutzgas C02, die Porigkeit beim Schweißen sowie auch beim Überschweißen von Anstrichen vermieden werden kann.Primers based on the fact that harmful effects, which occur when welding over, prevented by adding additional primer or compensated, the negative influence of the hydrogen from the Do not avoid binding agents. For example, inorganic or organic ones are known for this Flour compounds that are built into existing primers. on the other hand is it got that clurch Oxygen addition to the protective gas C02, the Avoid porosity when welding and when welding over paints can be.
Zweck der Erfindung ist die Vermeidung der die Schweißnahtqualität mindernden Porigkeit infolge Zersetzung von Bindemitteln, die überwiegend Wasserstoff abspalten und dadurch die Schaffung von Möglichkeiten, überschvJeißbare Grundierungen großtechnisch zum Einsatz zu bringen.The purpose of the invention is to avoid the weld seam quality reducing porosity due to the decomposition of binders, which are predominantly hydrogen split off and thereby the creation of possibilities for whitewashable primers to be used on a large scale.
Der Erfindung liegt die Aufgabe zugrunde, die positive Wirkung des Sauerstoffes in bezug auf die Porigkeit von Schweißnähten für die Herstellung überschweißbarer Korrosionsschutz-Anstrichstoffe auszunutzen und gleichzeitig die bisher beim Überschweißen von Anstrichstoffen sich qualitätsmindernd auswirkenden Wasserstoffentwicklungen einzuschränken.The invention is based on the object of the positive effect of the Oxygen in relation to the porosity of weld seams for the production of weldable seams To take advantage of anti-corrosion paints and at the same time those previously used when over-welding of paints, which have a negative effect on the quality of hydrogen to restrict.
Erfindungsgemäß werden deshalb einem für den Korrosionsschutz an sich bekannten Anstrichstoff sauerstoffhaltige und/oder sauerstoffabspaltende Stoffe als Bindemittel so beigemischt, daß ein porenfreies tibersehweißen möglich wird. Insbesondere werden zur Gewährleistung der Überscilweißbarkeit von Korrosionsschutz-Anstrichstoffen Epoxiester oder eine Kombination von Epoxiester und Polyvinylbutyral als Bindemittel hinzugegeben.According to the invention, therefore, one for corrosion protection per se known paint oxygen-containing and / or oxygen-releasing substances mixed in as a binder in such a way that pore-free over-welding is possible. In particular, they are used to ensure that corrosion protection paints can be welded over the surface Epoxy ester or a combination of epoxy ester and polyvinyl butyral as a binder added.
Weiterhin bewirken infolge günstiger schweißmetallurgi scher Reaktionen auch Aluminiumpigmente, titanhaltiges Aluminiumpigment und Titanoxid zusammen mit Aluminiumpigmenten in diesen Korrosionsschutzanstrichstoffen begenüber den bisher bekannten Anstrichstoffen Teile verbesserte Schweißnahtqualität beim Überschweißen.Furthermore, due to favorable schweißmetallurgi cal reactions also aluminum pigments, titanium-containing aluminum pigment and titanium oxide along with Aluminum pigments in these anti-corrosion paints compared to the previous ones known paints parts improved weld seam quality when over-welding.
Durch die Verwendung der erfindungsgemäßen Stoffe als Bindemittel für Korrosionsschutz-Anstrichstoffe ergibt sich die Möglichkeit, überschweißbare Grundierungen großtechnisch, z. B. im Stahlbau, zum Einsatz zu bringen.By using the substances according to the invention as binders for anti-corrosion paints there is the possibility of over-weldable Large-scale primers, e.g. B. in steel construction to be used.
Eine Porigkeit der Schweißnaht wird dadurch vermieden.This avoids porosity in the weld seam.
Das Überschweißen dicser Anstrichstoffe ist arbeitshygienisch unbedenklich.Welding these paints over is harmless in terms of occupational hygiene.
Die ErEindung soll nachstehend an zwei Ausführungsbeispielen näher erlautert werden.The invention is to be described in more detail below using two exemplary embodiments to be explained.
Ein überschweißbarer Anstrichstoff für den Korrosionsschutz kann folgende Zusammensetzung aufweisen : 0,5 bis 60 Gevi. Teile Epoxiester 0,5 bis 60 Gew. Teile Aluminium-Paste 0,5 bis 5 Gew. Teile Lackhilfsmittel (Siccative, Inhibitoren, UV-Absorber etc.) 98,5 bis 0 Gew. Teile Lösungsmittel (Benzine, Aromaten, Ester, Alkohole) Ein weiterer überschweißbarer Korrosionsschutz -Anstrichstoff bewirkt bei folgender Zusammensetzung porenfreie Schweißnähte : 0,5 bis 30 Gew. Teile Epoxiester 0,5 bis 30 Gew. Teile Polyvinylbutyral 0,5 bis 60 Gew. Teile Aluminium-Paste 0,5 bis 5 Gew. Teile Lackhilfsmittel (Siccative, Inhibitoren, Uv-Absorber etc.) 98 bis 0 Gew. Teile Lösungsmittel (Ester, Aromaten, Alkohole etc.)A coating material that can be welded over for corrosion protection can be as follows Composition: 0.5 to 60 Gevi. Parts of epoxy ester 0.5 to 60 parts by weight Aluminum paste 0.5 to 5 parts by weight of paint auxiliaries (siccatives, inhibitors, UV absorbers etc.) 98.5 to 0 parts by weight of solvents (benzines, aromatics, esters, alcohols) a Another corrosion protection coating that can be welded over causes the following Composition of non-porous weld seams: 0.5 to 30 parts by weight of epoxy ester 0.5 to 30 parts by weight of polyvinyl butyral 0.5 to 60 parts by weight of aluminum paste 0.5 to 5 parts by weight Parts of paint auxiliaries (siccatives, inhibitors, UV absorbers, etc.) 98 to 0 parts by weight Solvents (esters, aromatics, alcohols, etc.)
Claims (1)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DENDAT87626D DE87626C (en) | 1972-01-17 | ||
DE19722202078 DE2202078A1 (en) | 1972-01-17 | 1972-01-17 | Corrosion protective paints - contg epoxy ester binders - and alumini pigments for satisfactory welding |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19722202078 DE2202078A1 (en) | 1972-01-17 | 1972-01-17 | Corrosion protective paints - contg epoxy ester binders - and alumini pigments for satisfactory welding |
Publications (1)
Publication Number | Publication Date |
---|---|
DE2202078A1 true DE2202078A1 (en) | 1973-07-19 |
Family
ID=5833210
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT87626D Active DE87626C (en) | 1972-01-17 | ||
DE19722202078 Pending DE2202078A1 (en) | 1972-01-17 | 1972-01-17 | Corrosion protective paints - contg epoxy ester binders - and alumini pigments for satisfactory welding |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT87626D Active DE87626C (en) | 1972-01-17 |
Country Status (1)
Country | Link |
---|---|
DE (2) | DE2202078A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2786204A1 (en) * | 1998-11-21 | 2000-05-26 | Daimler Chrysler Ag | Method for soldering metallic construction parts equipped with corrosion protection layers containing semiconductor material as filler which is excited into its conducting state during soldering |
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0
- DE DENDAT87626D patent/DE87626C/de active Active
-
1972
- 1972-01-17 DE DE19722202078 patent/DE2202078A1/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2786204A1 (en) * | 1998-11-21 | 2000-05-26 | Daimler Chrysler Ag | Method for soldering metallic construction parts equipped with corrosion protection layers containing semiconductor material as filler which is excited into its conducting state during soldering |
DE19853772C1 (en) * | 1998-11-21 | 2000-07-06 | Daimler Chrysler Ag | Process for welding steel components provided with corrosion protection layers |
GB2345454A (en) * | 1998-11-21 | 2000-07-12 | Daimler Chrysler Ag | A process for welding structural steel elements coated with anticorrosive layers |
US6368718B1 (en) | 1998-11-21 | 2002-04-09 | Daimlerchrysler Ag | Structural steel elements coated with anticorrosive coatings and process for welding the same |
Also Published As
Publication number | Publication date |
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DE87626C (en) |
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