US830536A - Method of making cast-iron articles. - Google Patents

Method of making cast-iron articles. Download PDF

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Publication number
US830536A
US830536A US14309503A US1903143095A US830536A US 830536 A US830536 A US 830536A US 14309503 A US14309503 A US 14309503A US 1903143095 A US1903143095 A US 1903143095A US 830536 A US830536 A US 830536A
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United States
Prior art keywords
iron
cast
making cast
articles
iron articles
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Expired - Lifetime
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US14309503A
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Alexander W Slocum
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CHARLES V SLOCUM
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CHARLES V SLOCUM
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Application filed by CHARLES V SLOCUM filed Critical CHARLES V SLOCUM
Priority to US14309503A priority Critical patent/US830536A/en
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Publication of US830536A publication Critical patent/US830536A/en
Anticipated expiration legal-status Critical
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Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C1/00—Refining of pig-iron; Cast iron
    • C21C1/08—Manufacture of cast-iron

Definitions

  • cast-iron car-wheels can be producedhaving greatly-increased hardnessand toughness, and therefore I of greater. durabilit by'combinin rutile with the cast-iron in t e manner whic I will now In the practice of my invention I take the cast-iron when it has been delivered from the cupola-furnace into a ladle and then While it is at or below the temperature. at which it is delivered ITOII'Kfi-hG cupola I introduce into it rutile-an oxid of titaniumpreferabl in the proportion of one per cent. or less 0 the weight of the iron.
  • I may add the rutile by placin it in a paper box or package of any suitab e material, pushing it with an iron or steel rod or other article suitable for the purpose to the bottom of the ladle, and then with t e iron.
  • the carbon or other meta loids of the cast-iron reduce the titanium oxid and produce metallic titanium, which alloys with the iron, giving the desired result.
  • the .iron is then cast into wheel molds.
  • the titanium may be the carmade to alloy with the iron at temperatures at or below that at which it leaves the cupola greatly decreases the 'cost of such alloys and renders them commercially available in the casting of comparatively small articles.
  • the proportion of rutile addedto the iron and the manner of introducing it may be varied, since What I claim is+ 1.
  • the method of making cast-iron articles which consists in tapping the molten cast-iron from a melting-furnace, and while it is at or 'below the temperature at which it was delivered from said furnace, mixing titanium oxid therewith, whereby the oxid is reduced by the carbon content of the iron, and then casting the article, substantially as described.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Dental Prosthetics (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Description

.' describe.
UNITED STATES PATENT oFF cE.
ALEXANDER .W. SLOCUM, OF.PITTSBURG, PENNSYLVANIA, ASSIGNOR OF ONE-HALF T CHARLESY. SLOCUM, OF PITTSBURG, PENNSYLVANIA.
METHOD- OF MAKING. .CAJST-TIRON ARTICLES.
Specification of Letters Patent.
Patented Sept. 11, 1906.
Application filed February 12.1903. Serial No. 143.095.
To all whom it may concern:
Be it known that I, ALEXANDER W. SLO- CUM, of Pittsburg Allegheny county, Pennsylvania, have invented a new and useful Improvement in. the Methods of Making Cast-Iron Articles, of which the following is a specification.
I have discovered that cast-iron car-wheels can be producedhaving greatly-increased hardnessand toughness, and therefore I of greater. durabilit by'combinin rutile with the cast-iron in t e manner whic I will now In the practice of my invention I take the cast-iron when it has been delivered from the cupola-furnace into a ladle and then While it is at or below the temperature. at which it is delivered ITOII'Kfi-hG cupola I introduce into it rutile-an oxid of titaniumpreferabl in the proportion of one per cent. or less 0 the weight of the iron. I may add the rutile by placin it in a paper box or package of any suitab e material, pushing it with an iron or steel rod or other article suitable for the purpose to the bottom of the ladle, and then with t e iron. The carbon or other meta loids of the cast-iron reduce the titanium oxid and produce metallic titanium, which alloys with the iron, giving the desired result. The .iron is then cast into wheel molds.
The discovery that the titanium may be the carmade to alloy with the iron at temperatures at or below that at which it leaves the cupola greatly decreases the 'cost of such alloys and renders them commercially available in the casting of comparatively small articles.
The proportion of rutile addedto the iron and the manner of introducing it may be varied, since What I claim is+ 1. The method of making cast-iron articles which consists in tapping the molten cast-iron from a melting-furnace, and while it is at or 'below the temperature at which it was delivered from said furnace, mixing titanium oxid therewith, whereby the oxid is reduced by the carbon content of the iron, and then casting the article, substantially as described.
2. The method of making cast-iron articles which consists in ta ping the molten castiron from a meltingrnace, and while it is at or belowthe temperature at which it was delivered from said furnace, incorporating;
therewith one per cent. or less, of titanium oxid, allowing the carbon content of the iron to reduce the oxid, and then casting the'article; substantially as described.
In testimony whereof I have hereunto set my hand.
ALEXANDER W. SLOCUM.
Witnesses:
L. M. REDMAN, H. M. 001mm.
US14309503A 1903-02-12 1903-02-12 Method of making cast-iron articles. Expired - Lifetime US830536A (en)

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US14309503A US830536A (en) 1903-02-12 1903-02-12 Method of making cast-iron articles.

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US830536A true US830536A (en) 1906-09-11

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2759812A (en) * 1951-05-19 1956-08-21 Sawamura Hiroshi Method of manufacturing castings of cast iron of refined graphite structure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2759812A (en) * 1951-05-19 1956-08-21 Sawamura Hiroshi Method of manufacturing castings of cast iron of refined graphite structure

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