DE1077815B - Marking of annealing temperatures, in particular steel heated to over 900µ - Google Patents

Marking of annealing temperatures, in particular steel heated to over 900µ

Info

Publication number
DE1077815B
DE1077815B DEH30450A DEH0030450A DE1077815B DE 1077815 B DE1077815 B DE 1077815B DE H30450 A DEH30450 A DE H30450A DE H0030450 A DEH0030450 A DE H0030450A DE 1077815 B DE1077815 B DE 1077815B
Authority
DE
Germany
Prior art keywords
marking
annealing temperatures
over
water glass
steel heated
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
Application number
DEH30450A
Other languages
German (de)
Inventor
Dipl-Ing Willy Schubert
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.)
HOESCH ROHRWERKE AG
Original Assignee
HOESCH ROHRWERKE AG
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 HOESCH ROHRWERKE AG filed Critical HOESCH ROHRWERKE AG
Priority to DEH30450A priority Critical patent/DE1077815B/en
Publication of DE1077815B publication Critical patent/DE1077815B/en
Pending legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/68Temporary coatings or embedding materials applied before or during heat treatment
    • C21D1/70Temporary coatings or embedding materials applied before or during heat treatment while heating or quenching
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/24Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing alkyl, ammonium or metal silicates; containing silica sols
    • C04B28/26Silicates of the alkali metals
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474Uses not provided for elsewhere in C04B2111/00
    • C04B2111/00482Coating or impregnation materials

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Ceramic Engineering (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Metallurgy (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Structural Engineering (AREA)
  • Paints Or Removers (AREA)

Description

Kennzeichnen von auf Glühtemperaturen, insbesondere über 900°C erhitztem Stahl Die vorliegende Erfindung betrifft die Verwendung einer bestimmten Mischung aus Natron-Wasserglas, Aluminiumpulver und Eisenoxydrot zur Kennzeichnung von Stahl, wenn dieser auf Glühtemperaturen, insbesondere über 900° C erhitzt wird. Bei diesen Temperaturen ist die Verzunderung der Oberflächen schon verhältnismäßig groß, wenn der Stahl nicht unter Schutzgas geglüht wird, was nicht immer der Fall ist.Identification of those heated to annealing temperatures, in particular over 900 ° C Steel The present invention relates to the use of a particular mixture made of soda water glass, aluminum powder and iron oxide red for marking steel, if this is heated to annealing temperatures, in particular over 900 ° C. With these Temperatures, the scaling of the surfaces is already relatively large when the steel is not annealed under protective gas, which is not always the case.

Es sind Verfahren bekannt, bei denen Wasserglas-Farben als hitzebeständiges Kennzeichnungsmittel verwendet werden, und man hat des, weiteren als Zusatz hierfür Metallpigmente vorgeschlagen.Processes are known in which water glass paints are used as heat-resistant Identification means are used, and one has, furthermore, as an additive for this Metal pigments proposed.

Bei diesem Verfahren geht es darum, haltbare Farbanstriche zu erzielen, die auch gewisse Hitzegrade aushalten. Die Temperaturen, die hierbei aber in Betracht kommen, liegen sehr viel niedriger als bei dem Gegenstand der Erfindung und erreichen noch nicht einmal die dunkle Rotglut.The aim of this process is to achieve long-lasting paintwork, which can also withstand certain degrees of heat. The temperatures, however, are taken into account here come, are much lower than the subject of the invention and achieve not even the dark red heat.

Die Aufgabe, die sich die Erfindung gestellt hat, besteht nun nicht darin, einen haltbaren Farbanstrich zu erhalten, sondern es soll erreicht werden, daß das Kennzeichnungsmittel, das aufgetragen wird, einen nicht verzunderten Untergrund hinterläßt, wenn nach dem Glühen des gekennzeichneten Gutes durch nachträgliche Beanspruchung das Kennzeichnungsmittel abspringt.The task set by the invention does not now exist in getting a durable coat of paint, but rather it should be achieved that the marking agent that is applied has a non-scaled subsurface leaves if after the glowing of the marked item by subsequent Stress the marking agent jumps off.

Die Lösung der Erfindung wird in der Verwendung einer Mischung von Wasserglas mit Metallpulver gesehen und zwar bei einem Gehalt von 4 bis 5 Teilen Natron-Wasserglas auf 1 Teil Aluminiumpulver und Eisenoxydrot, letztere Stoffe im Verhältnis 9 : 1.The solution of the invention is in the use of a mixture of Seen water glass with metal powder at a content of 4 to 5 parts Soda water glass on 1 part aluminum powder and iron oxide red, the latter substances in the Ratio 9: 1.

Die zu kennzeichnenden Merkmale, wie Chargennummer, Fertigungsdaten, Kundennamen u. dgl., werden vor dem Glühen in an sich bekannter Weise durch Aufstempeln der Zeichen, z. B. unter Verwendung von Schablonen, mit einer derartigen Mischung aufgebracht. Die erhaltene Markierung wirkt wie eine Emaille und verhütet somit das Verzundern an den Auftragsstellen. Wird beispielsweise durch Richten das gekennzeichnete Gut nach dem Glühen nochmals beansprucht, so springt zwar der durch das Auftragen der Mischung von Wasserglas mit Metallpulver und Eisenoxydrot erhaltene Überzug ab, an der Auftragsstelle selbst ist aber kein Verzundern eingetreten. Das Aluminiumpulver gibt in erster Linie eine Schutzwirkung, indem es selbst infolge seiner großen Affinität zu Sauerstoff eher oxydiert als der zu schützende Stahl. Die Stellen heben sich daher deutlich ab. Man kann die Kennzeichnung gut lesen.The characteristics to be marked, such as batch number, production data, Customer names and the like are stamped on in a known manner before annealing of characters, e.g. B. using templates, with such a mixture upset. The received marking acts like an enamel and thus prevents scaling at the job sites. For example, by straightening the If it is used again well after the glow, it does jump through the application the coating obtained by mixing water glass with metal powder and red iron oxide from, but no scaling has occurred at the place of the order itself. The aluminum powder primarily gives a protective effect by giving it itself as a result of its great affinity rather oxidizes to oxygen than the steel to be protected. The spots rise therefore clearly from. The labeling is easy to read.

Bei der Herstellung der Mischung selbst muß jegliche Klumpenbildung vermieden werden. Es ist deshalb zweckmäßig, noch etwas Wasser zuzusetzen.There must be any lump formation in the preparation of the mixture itself be avoided. It is therefore advisable to add a little more water.

Claims (1)

PATENTANSPRUCH: Verwendung einer Mischung von Wasserglas mit Metallpulver, gekennzeichnet durch einen Gehalt von 4 bis 5 Teiler. Natron-Wasserglas auf 1 Teil Aluminiumpulver und Eisenoxydrot, letztere Stoffe im Verhältnis 9 : 1, zum Kennzeichnen von auf Glühtemperaturen, insbesondere über 900° C, erhitztem Stahl. In Betracht gezogene Druckschriften: USA.-Patentschrift Nr. 1744 116; Hadert, Neues Rezeptbuch für die Farben- und Lackindustrie, 1952, S. 533 (Referat der britischen Patentschrift Nr. 462 376), S. 538 Mitte sowie S. 542 (Referat der USA.-Patentschrift Nr. 2 239 478).PATENT CLAIM: Use of a mixture of water glass with metal powder, characterized by a content of 4 to 5 parts. Soda water glass on 1 part aluminum powder and iron oxide red, the latter substances in a ratio of 9: 1, for identifying steel heated to annealing temperatures, especially over 900 ° C. Contemplated publications: USA. Patent No. 1,744,116;. Hadert, New recipe book for the paint and varnish industry, 1952, p. 533 (report from British patent specification No. 462 376), p. 538 middle and p. 542 (report from US patent specification No. 2 239 478).
DEH30450A 1957-06-24 1957-06-24 Marking of annealing temperatures, in particular steel heated to over 900µ Pending DE1077815B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEH30450A DE1077815B (en) 1957-06-24 1957-06-24 Marking of annealing temperatures, in particular steel heated to over 900µ

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEH30450A DE1077815B (en) 1957-06-24 1957-06-24 Marking of annealing temperatures, in particular steel heated to over 900µ

Publications (1)

Publication Number Publication Date
DE1077815B true DE1077815B (en) 1960-03-17

Family

ID=7151373

Family Applications (1)

Application Number Title Priority Date Filing Date
DEH30450A Pending DE1077815B (en) 1957-06-24 1957-06-24 Marking of annealing temperatures, in particular steel heated to over 900µ

Country Status (1)

Country Link
DE (1) DE1077815B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1253386B (en) * 1961-10-27 1967-11-02 Krupp Ag Huettenwerke Color for identifying workpieces that are exposed to high temperatures

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1744116A (en) * 1928-04-10 1930-01-21 Us Commerce Composition of matter
GB462376A (en) * 1934-06-04 1937-03-01 Heinrich Warnecke Improvements in and relating to heat resisting paints or protecting layers for crucibles and the like
US2239478A (en) * 1940-02-09 1941-04-22 Linton C Amberson Paint

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1744116A (en) * 1928-04-10 1930-01-21 Us Commerce Composition of matter
GB462376A (en) * 1934-06-04 1937-03-01 Heinrich Warnecke Improvements in and relating to heat resisting paints or protecting layers for crucibles and the like
US2239478A (en) * 1940-02-09 1941-04-22 Linton C Amberson Paint

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1253386B (en) * 1961-10-27 1967-11-02 Krupp Ag Huettenwerke Color for identifying workpieces that are exposed to high temperatures

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