DE436092C - Process for the protection of metal objects - Google Patents
Process for the protection of metal objectsInfo
- Publication number
- DE436092C DE436092C DES69320D DES0069320D DE436092C DE 436092 C DE436092 C DE 436092C DE S69320 D DES69320 D DE S69320D DE S0069320 D DES0069320 D DE S0069320D DE 436092 C DE436092 C DE 436092C
- Authority
- DE
- Germany
- Prior art keywords
- metal objects
- protection
- metal
- protective coating
- high temperatures
- 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
Links
Classifications
-
- 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
- C23D—ENAMELLING OF, OR APPLYING A VITREOUS LAYER TO, METALS
- C23D5/00—Coating with enamels or vitreous layers
-
- 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
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F15/00—Other methods of preventing corrosion or incrustation
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Paints Or Removers (AREA)
Description
Verfahren zum Schutz von Metallgegenständen. Es liegt hätifig die Aufgabe vor, Metallgegenstände, z. B. Gußformen, Thermoeleinente, die in flüssiges Metall getaucht werden, usw., vor dem Angriff der mit ihnen in z# Berührung kommenden flüssigen Metalle zu schützen. Man macht dies vielfach durch Aufbringen eines Schutzanstriches auf den Metallgegenstand. Hierbei tritt jedoch meist der Nachteil auf, daß die Schutzanstriche bei den hohen Temperaturen Sprünge erhalten, so daß das geschmolzene Metall trotz des An-,#triches Zutritt zu dem Metallgegenstand erlangen kann.Process for protecting metal objects. It is often the one Task before, metal objects, z. B. molds, thermal elements that are in liquid Metal, etc., before attack by those who come into contact with them to protect liquid metals. This is often done by applying a protective coating on the metal object. However, this usually has the disadvantage that the protective coatings cracks obtained at the high temperatures, so that the molten metal in spite of des an -, # triches can gain access to the metal object.
Die Erfindung liegt nun in der Erkenntnis, daß sich derartige Sprünge vollständig vermeiden lassen, wenn als Schutzanstrich eine Masse gewählt wird, die bei den in Betracht kommenden hohen Temperaturen erweicht. Eine solche Masse zeigt einerseits naturgemäß wenig Neigung zum Springen, anderseits fließen etwa auftretende Lücken von selbst wieder zu.The invention lies in the knowledge that such jumps Can be avoided completely if a protective coating is chosen that softens at the high temperatures involved. Such a mass shows on the one hand, naturally little tendency to jump, on the other hand, any occurring flow Gaps close again by themselves.
Als solcher Schutzanstrich kann z. B. ein Gemenge von drei Teilen leichtscbmelzendem Bleiglas und einem Teil Tonerde oder, als Schutz gegen flüssiges Aluminium, ein Ge- menge von leicht schmelzbarem Milchglas und von Tonerde in gleichen Teilen dienen. Das Gemenge kann mit Wasser oder auch mit etwas Wasserglas zu einem Brei angerührt und aufgestrichen werden. Es haftet nach dem Trocknen genfigend fest. Der angestrichene Gegenstand kann ohne vorheriges Erhitzen benutzt werden. Der Anstrich sintert dann bei der Benutzung von selbst und bildet einen emailartigen Überzug. Er kann aber auch vor der Ingebrauchnahme bis zum Sintern erhitzt werden.As such a protective coating, for. B. serve a mixture of three parts leichtscbmelzendem lead glass and a portion of alumina or, as a protection against liquid aluminum, a mixture of fusible glass, and alumina in equal parts. The mixture can be mixed with water or with a little water glass to a pulp and spread on. It adheres sufficiently after drying. The painted object can be used without prior heating. The paint then sinters by itself with use and forms an enamel-like coating. However, it can also be heated until sintering before it is used.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES69320D DE436092C (en) | 1925-03-20 | 1925-03-20 | Process for the protection of metal objects |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES69320D DE436092C (en) | 1925-03-20 | 1925-03-20 | Process for the protection of metal objects |
Publications (1)
Publication Number | Publication Date |
---|---|
DE436092C true DE436092C (en) | 1926-10-23 |
Family
ID=7500900
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DES69320D Expired DE436092C (en) | 1925-03-20 | 1925-03-20 | Process for the protection of metal objects |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE436092C (en) |
-
1925
- 1925-03-20 DE DES69320D patent/DE436092C/en not_active Expired
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