US1703019A - Coating cast iron with lead - Google Patents

Coating cast iron with lead Download PDF

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Publication number
US1703019A
US1703019A US139232A US13923226A US1703019A US 1703019 A US1703019 A US 1703019A US 139232 A US139232 A US 139232A US 13923226 A US13923226 A US 13923226A US 1703019 A US1703019 A US 1703019A
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United States
Prior art keywords
lead
cast iron
iron
coating
cast
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Expired - Lifetime
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US139232A
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Spengler Oskar
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Individual
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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
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/04—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
    • C23C2/10—Lead or alloys based thereon

Definitions

  • the use of a copper salt may be upon it a piece of lead in the usual manner .As soon as the surface is sufficiently hot the lead flows smoothly and yields a homogeneous coating of lead of a quality not hitherto achieved. It is simpler to combine the two preparing operations.
  • the v iron with lead which comprises treating the cast iron with a copper salt, a tin salt, and a zinc halide, and melting lead on the surface so prepared.
  • Process for homogeneously coating cast iron with lead which comprises treating the cast iron with copper sulfate and a mixture v of protochloride of tin and zinc chloride, and melting lead on the surface so prepared.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Nonmetallic Welding Materials (AREA)

Description

Patented Feb. 19, 1929.
UNITED STATES PATENT. OFFICE.
COATING CAST IRON WITH. LEAD.
No Drawing. Application filed. October 2, 1926, Serial No. 139,232, and in Germany November 28, 1925,
There exist a number of processes applied in the art for homogeneously coating wrought iron with lead, but the production of a homogeneous lead coating upon cast iron presents such difficulty that it cannot be said that the problem involved has heretofore been solved. The main difliculty is due to the fact that cast iron, unlike malleable iron, cannot easily be tinned. It follows that those processes which depend upon a'preliminary tinning of malleable iron cannot be applied to cast iron. By the present invention cast iron can be homogeneously coated with lead in a remarkably smooth and easy manner by first treating the cast iron, which has been thoroughly .cleaned by pickling or a like operation, with a solution ofa metallic salt from which the metal is precipitated by cast iron. As a typical example the use of a copper salt may be upon it a piece of lead in the usual manner .As soon as the surface is sufficiently hot the lead flows smoothly and yields a homogeneous coating of lead of a quality not hitherto achieved. It is simpler to combine the two preparing operations. For this purpose the v iron with lead, which comprises treating the cast iron with a copper salt, a tin salt, and a zinc halide, and melting lead on the surface so prepared. p
2. Process for homogeneously coating cast iron with lead, which comprises treating the cast iron with copper sulfate and a mixture v of protochloride of tin and zinc chloride, and melting lead on the surface so prepared.
3. A process for homogeneously coating cast-iron with lead in which the cast-iron is first treated simultaneously with a mixture ofa copper salt, a tin salt and zinc halide and in which the lead is then melted on the surface so prepared. V
4. A process for homogeneously coating cast-iron with lead in which the cast-iron is first treated simultaneously with a mixture of copper sulfate, protochloride of tin and zinc chloride and in which the lead is then melted on the surface so prepared. v
In testimony whereof I aflix my signature.
' OSKAB SPENGLER.
US139232A 1925-11-28 1926-10-02 Coating cast iron with lead Expired - Lifetime US1703019A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1703019X 1925-11-28

Publications (1)

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US1703019A true US1703019A (en) 1929-02-19

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ID=7739934

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US139232A Expired - Lifetime US1703019A (en) 1925-11-28 1926-10-02 Coating cast iron with lead

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2596466A (en) * 1948-03-15 1952-05-13 Nat Cylinder Gas Co Flux for lead burning and method of making same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2596466A (en) * 1948-03-15 1952-05-13 Nat Cylinder Gas Co Flux for lead burning and method of making same

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