DE682104C - Process for the production of a protective coating on iron parts - Google Patents

Process for the production of a protective coating on iron parts

Info

Publication number
DE682104C
DE682104C DEH152345D DEH0152345D DE682104C DE 682104 C DE682104 C DE 682104C DE H152345 D DEH152345 D DE H152345D DE H0152345 D DEH0152345 D DE H0152345D DE 682104 C DE682104 C DE 682104C
Authority
DE
Germany
Prior art keywords
protective coating
iron
production
iron parts
stage
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.)
Expired
Application number
DEH152345D
Other languages
German (de)
Inventor
Karl Hentschke
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to DEH152345D priority Critical patent/DE682104C/en
Application granted granted Critical
Publication of DE682104C publication Critical patent/DE682104C/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05DPROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00Pretreatment 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
    • B05D3/02Pretreatment 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 baking

Landscapes

  • Application Of Or Painting With Fluid Materials (AREA)

Description

Verfahren zur Herstellung eines Schutzüberzuges auf Eisenteilen Zur Erzeugung eines Schutzüberzuges auf Eisenteilen, durch den ihre Oberfläche gegen Oxydation geschützt werden soll, bedient man sich seit mehreren Jahren eines Verfahrens, bei dem auf die phosphatierten Eisenoberflächen Lacküberzüge aufgebracht werden; die Trocknung des Überzuges erfolgt durch anschließendes Erhitzen auf höhere Wärmegrade.Process for the production of a protective coating on iron parts Zur Creation of a protective coating on iron parts, through which their surface against If oxidation is to be protected, a procedure has been used for several years in which lacquer coatings are applied to the phosphated iron surfaces; the coating is dried by subsequent heating to a higher degree of heat.

Sollen die Eisenteile das Aussehen verzinnter Teile haben, so kann als Deckschicht ein Metallpulver enthaltender Lack benutzt werden.If the iron parts are to have the appearance of tinned parts, then a lacquer containing metal powder can be used as a top layer.

Die Erfahrung hat nun gelehrt, daß dieses für viele Fälle ausreichende Verfahren einer Verzinnung von Eisenteilen insbesonders dann nicht gleichwertig ist, wenn es für Eisenteile benutzt wird, die, wie dies insbesonders bei Haus- und Küchengeräten der Fall ist, selbst nach langem Gebrauch noch Oberflächen haben sollten, die lauge- und säurefest sind und auch eine leichte Säuberung ermöglichen. Mannigfaltige Erprobungen haben gezeigt, daß eine Verbesserung der Schutzwirkung des Schutzüberzuges dadurch erreichbar ist, daß die zuvor nach an sich bekannten Verfahren phosphatierten Eisenoberflächen mit Überzügen eines Metallpulver enthaltenden Lackes versehen werden, die in zwei Arbeitsstufen aufgebracht werden.Experience has now shown that this is sufficient for many cases The process of tin-plating iron parts, in particular, is then not equivalent is when it is used for iron parts, which, as is particularly the case with house and Kitchen appliances should still have surfaces even after long use, which are alkali and acid resistant and also allow easy cleaning. Manifold Tests have shown that an improvement in the protective effect of the protective coating can be achieved in that the previously phosphated by processes known per se Iron surfaces are provided with coatings of a metal powder containing paint, which are applied in two stages.

In der ersten Arbeitsstufe wird dabei ein Lackfilm erzeugt, dessen Trocknung bei solcher Temperatur erfolgt, daß auf den metallischen Beimengungen des Lackes verkohlte Teilchen wahrnehmbar sind. In der zweiten Arbeitsstufe wird dann eine Deckschicht des gleichen Lackes aufgebracht und die Trocknung des in der zweiten Arbeitsstufe erhaltenen Überzuges bei Temperaturen vorgenommen, die dicht unterhalb der Temperaturen liegen, bei welchen die Verkohlung des Lackfilms eintritt.In the first stage of work, a paint film is produced Drying takes place at such a temperature that on the metallic impurities charred particles of the paint are noticeable. In the second stage of work then applied a top coat of the same varnish and drying the in the second stage of the coating obtained at temperatures that are tight lie below the temperatures at which the charring of the paint film occurs.

Bekanntlich werden Trocknungen von hier in Betracht kommenden Lacken in der Regel bei Temperaturgraden nur von etwa 16o° C durchgeführt. Es ist zwar auch bekannt, daß bei Überschreitung dieser Temperaturgrenze die Härte der aufgetragenen Lackschicht infolge weiterer Verfestigung von Lackbestandteilen noch zunimmt. Weil dabei aber meist eine Verfärbung des Lackfilms eintritt,_.:hat man bisher die Überschreitung dergenannten Temperaturgrenze vermieden.It is well known that the paints that come into consideration here are dried usually carried out at temperatures of only around 160 ° C. It is true also known that if this temperature limit is exceeded, the Hardness of the applied paint layer as a result of further solidification of paint components still increasing. Because this usually results in a discoloration of the paint film, _ .: has one has hitherto avoided exceeding the temperature limit mentioned.

Claims (1)

PATENTANSPRUCFI: Verfahren zur Herstellung eines@Schutzüberzuges auf Teilen aus Eisen, insbesonders auf Haus- und Küchengeräten, durch Aufbringen von Überzügen von Metallpulver enthaltenden Lacken auf die phosphatierten Eisenoberflächen, dadurch gekennzeichnet, daß in einer ersten Arbeitsstufe der auf die phosphatierten Eisenoberfläche aufgetragene Überzug bis zur beginnenden Verkohlung des Überzuges erhitzt wird und daB in einer zweiten Arbeitsstufe eine Deckschicht aus dem gleichen Metallpulver enthaltenden Lack erzeugt wird, die bei einer Temperatur getrocknet wird, die dicht unterhalb der Temperatur liegt, bei, welcher. die Verkohlung des Lackfilms eintritt.PATENT APPLICATION: Process for the production of a @ protective coating Parts made of iron, in particular on household and kitchen appliances, by applying Coatings of paints containing metal powder on the phosphated iron surfaces, characterized in that in a first stage of the phosphatized Coating applied to the iron surface until the coating begins to char is heated and that in a second stage a top layer of the same Paint containing metal powder is produced, which is dried at a temperature which is just below the temperature, at which. the charring of the Paint film occurs.
DEH152345D 1937-07-17 1937-07-17 Process for the production of a protective coating on iron parts Expired DE682104C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEH152345D DE682104C (en) 1937-07-17 1937-07-17 Process for the production of a protective coating on iron parts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEH152345D DE682104C (en) 1937-07-17 1937-07-17 Process for the production of a protective coating on iron parts

Publications (1)

Publication Number Publication Date
DE682104C true DE682104C (en) 1939-10-07

Family

ID=7181395

Family Applications (1)

Application Number Title Priority Date Filing Date
DEH152345D Expired DE682104C (en) 1937-07-17 1937-07-17 Process for the production of a protective coating on iron parts

Country Status (1)

Country Link
DE (1) DE682104C (en)

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