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DE574744C - Wear-resistant and corrosion-proof cast iron - Google Patents

Wear-resistant and corrosion-proof cast iron

Info

Publication number
DE574744C
DE574744C DE1930574744D DE574744DD DE574744C DE 574744 C DE574744 C DE 574744C DE 1930574744 D DE1930574744 D DE 1930574744D DE 574744D D DE574744D D DE 574744DD DE 574744 C DE574744 C DE 574744C
Authority
DE
Germany
Prior art keywords
cast iron
arsenic
corrosion
wear
resistant
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
DE1930574744D
Other languages
German (de)
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.)
EUGEN PIWOWARSKY DR ING
Original Assignee
EUGEN PIWOWARSKY DR ING
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 EUGEN PIWOWARSKY DR ING filed Critical EUGEN PIWOWARSKY DR ING
Application granted granted Critical
Publication of DE574744C publication Critical patent/DE574744C/en
Expired legal-status Critical Current

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
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C8/60—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using solids, e.g. powders, pastes
    • C23C8/62—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using solids, e.g. powders, pastes only one element being applied
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING 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
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/005—Modifying the physical properties by deformation combined with, or followed by, heat treatment of ferrous alloys
    • 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
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C10/00—Solid state diffusion of only metal elements or silicon into metallic material surfaces
    • C23C10/18—Solid state diffusion of only metal elements or silicon into metallic material surfaces using liquids, e.g. salt baths, liquid suspensions
    • C23C10/20—Solid state diffusion of only metal elements or silicon into metallic material surfaces using liquids, e.g. salt baths, liquid suspensions only one element being diffused

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Heat Treatment Of Articles (AREA)

Description

Verschleißfestes und korrosionssicheres Gußeisen Das Hauptpatent 56q.681 bezieht sich auf die Verwendung von Gußeisen mit o,i bis 3°[a Arsen zur Herstellung von solchen Gegenständen, bei denen es auf hohe Verschleißfestigkeit und Korrosionssicherheit ankommt. Dieses Gußeisen wird durch Zulegieren von Arsen oder von arsenhaltigen Stoffen hergestellt.Wear-resistant and corrosion-proof cast iron The main patent 56q.681 refers to the use of cast iron with 0.1 to 3 ° [a arsenic for the production of such objects that require high wear resistance and corrosion resistance arrives. This cast iron is made by adding arsenic or arsenic Fabrics made.

Versuche haben ergeben, das eine praktisch ausreichende Wirkung auch erzielt wird durch Oberflächenarsenierung von Gußeisen.Tests have shown that this is also a practically sufficient effect is achieved by surface arsenic treatment of cast iron.

Der technische Fortschritt der Oberflächenarsenierung liegt vorwiegend in einer Umgehung der unangenehmen Wirkung des Arsens bei dessen Zugabe zum schmelzflüssigen Eisen, insbesondere in der Umgehung des Entstehens schädlicher; arsenführender Dämpfe. Als Enderzeugnis wird gemäß des vorliegenden Patents nicht die Erzielung eines Arsenüberzuges angestrebt, bei dem sich reines Arsen an der Oberfläche des Werkstücks befindet, sondern vielmehr ist die Schaffung einer mit Arsen angereicherten Oberflächenlegierung auf dem Wege der Diffusion beabsichtigt.The technical progress of surface arsenic lies predominantly in a circumvention of the unpleasant effects of arsenic when it is added to the molten liquid Iron, especially in avoiding the emergence of harmful; Arsenic vapors. According to the present patent, the end product is not the achievement of an arsenic coating aimed at with pure arsenic on the surface of the workpiece, rather, it is the creation of an arsenic-enriched surface alloy intended by way of diffusion.

Die Oberflächenarsenierung kann z. B. erfolgen durch i. elektrolytische Arsenierung (naß und trocken), z. Behandlung der Gusstücke in arsenabgebenden Gemischen bei höheren Temperaturen, 3. Eintauchen der Gusstücke in arsenreiche Metallbänder.The surface arsenic can e.g. B. be done by i. electrolytic Arsenication (wet and dry), e.g. Treatment of the castings in arsenic-releasing mixtures at higher temperatures, 3. immersing the castings in arsenic-rich metal strips.

Durch thermische , Nachbehandlung des ärsenierten Eisens, insbesondere durch Glühen der arsenierten Gusstücke bei höheren Temperaturen (oberhalb etwa 6oo0), wird infolge Diffusionsausgleich und Normalisierung des Gefüges die Haftfähigkeit der arsenhaltigen Oberflächenschichten sowie deren Eigenschaften verbessert.Through thermal, post-treatment of the iron, in particular by annealing the arsenated castings at higher temperatures (above about 6oo0), the adhesion is due to diffusion equalization and normalization of the structure the arsenic-containing surface layers and their properties are improved.

Claims (2)

PATENTANSPRÜCHE; i. Die Verwendung von Gußeisen, welches Arsen in Mengen von o, i bis 3 °/o nur an der Oberfläche enthält, zur Herstellung von Gegenständen, bei denen es auf hohe Verschleißfestigkeit und Korrosionssicherheit ankommt (Zusatz zum Patent 56468i). PATENT CLAIMS; i. The use of cast iron, which only contains arsenic in quantities of 0.1 to 3% on the surface, for the manufacture of objects that require high wear resistance and corrosion resistance (addendum to patent 56468i). 2. Verfahren zur Warmbehandlung des Gußeisens nach Anspruch i, dadurch gekennzeichnet, das das Gußeisen nach der Arsenbehandlung noch über etwa 6oo0 C geglüht wird.2. Process for the heat treatment of cast iron according to claim i, characterized in that the cast iron after the arsenic treatment is still annealed over about 600C.
DE1930574744D 1930-11-02 1930-11-02 Wear-resistant and corrosion-proof cast iron Expired DE574744C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE574744T 1930-11-02

Publications (1)

Publication Number Publication Date
DE574744C true DE574744C (en) 1933-04-20

Family

ID=6569545

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1930574744D Expired DE574744C (en) 1930-11-02 1930-11-02 Wear-resistant and corrosion-proof cast iron

Country Status (1)

Country Link
DE (1) DE574744C (en)

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