US1331816A - Method of casting metal - Google Patents

Method of casting metal Download PDF

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Publication number
US1331816A
US1331816A US346309A US34630919A US1331816A US 1331816 A US1331816 A US 1331816A US 346309 A US346309 A US 346309A US 34630919 A US34630919 A US 34630919A US 1331816 A US1331816 A US 1331816A
Authority
US
United States
Prior art keywords
metal
mold
oxids
aluminum
coating
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 - Lifetime
Application number
US346309A
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English (en)
Inventor
Jr Charles Mcknight
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to US346309A priority Critical patent/US1331816A/en
Application granted granted Critical
Publication of US1331816A publication Critical patent/US1331816A/en
Priority to FR519450A priority patent/FR519450A/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C3/00—Selection of compositions for coating the surfaces of moulds, cores, or patterns

Definitions

  • y invention relates to the art of casting iron and steel roducts, whether in their initial, final or intermediate state of manufacture.
  • the objects thereof are to reduce porosity, such as blOWvhOlGS, and remove ox1d inclusions at or near the surfaces of cast ferrous articles, to improve the surfaces of such articles, and to facilitate the removal of the articles from their molds. 4
  • This agent may be oneor 'a suitable agent whlch combines a more of several substances, such as aluminum, titanium, magnesium, or other uivalents.
  • This agent may be oneor 'a suitable agent whlch combines a more of several substances, such as aluminum, titanium, magnesium, or other uivalents.
  • any agent capable o combinin with the sea which tend to form blow-ho es as coming within my invention, no matter what materials compose the molds or the articles 'cast.
  • powdered aluminum to be a very satisfactory ent. It may be applled in a dry condition y blowing or dustm it on the mold surfaces.
  • I may mix it with various dilutents, or carriers, as molassesor water or colloidal solutions, for exam 1e, and apply the resultant composition wit a brush, a spraying nozzle, or" other device.
  • molassesor water or colloidal solutions for exam 1e
  • colloids cite the following: glue, starch, sodium silicate, tannic acid, extrose, and gelatin.
  • I may employ in addition to the said agent, a umm or its equivalent, a substance, such as graphite, to lubricate the mold and prevent the sticking of the article therein.
  • Graphite serves to give more body to the composition and enables it to spread more and cover a larger surface.
  • the glraphite may be a plied separate] or wit one or more 0 the other ingr ients.
  • I may apply silica wash or slaked lime to the mold either.
  • compositions which I have found satisfactory I give the following: first, two fgallons of sodium silicate, fifty pounds 0 wdered aluminum, twenty pounds of gra ite, and water sufiicient to make about fi y gallons of the'mixture;. second, one pint of molasses, two pounds of powdered graphite, one und of powdered aluminum and water su cient to make about two gallons of the mixture.
  • claim: 1. The method of reducing porosity and lessening included metal-oxids at or near the surface of ferrous castings which consists in applyinglto the molding surface a metalliccoatin aving the propert of combining with the gases and oxids in t e molten metal and then running molten metal into the mold, said coating containing substantially the amount needed to cause the removal of the occluded gases and the oxids and not enough to materially alter the physical properties of the metal.
  • the method of reducing porosity and lessening included metal-oxids at or near the surface of ferrous castings which consists in applying to the molding surface a coating havin the property of chemicall combining with the gases and oxids in t e molten phzsical properties of the metal. porosity and lessening included metal-oxi s at or near the metal and then running the molten metal into the mold, said coatmg containing substantially the amount needed to cause the removalof the occluded gases and the oxids and not enough to materially alterthe
  • the method of reducing surface of ferrous castings which consists in ,applyinglto the molding surface a metallic coating ses-and the oxids and 5.
  • the method ofreducing porosity at or 7 near the surface of ferrous castings which consists in a plying to the molding surface a coating 0 powdered aluminum 'and then running the molten metal into the mold.
  • the method of reducing porosity at or near the surface of ferrous castings which consists in applying to the molding surface a coating of powdered aluminum together with a suitable carrier and then running the molten metal into the mold.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mold Materials And Core Materials (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
US346309A 1919-12-20 1919-12-20 Method of casting metal Expired - Lifetime US1331816A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US346309A US1331816A (en) 1919-12-20 1919-12-20 Method of casting metal
FR519450A FR519450A (fr) 1919-12-20 1920-07-08 Procédé de coulée de métaux

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US346309A US1331816A (en) 1919-12-20 1919-12-20 Method of casting metal

Publications (1)

Publication Number Publication Date
US1331816A true US1331816A (en) 1920-02-24

Family

ID=23358819

Family Applications (1)

Application Number Title Priority Date Filing Date
US346309A Expired - Lifetime US1331816A (en) 1919-12-20 1919-12-20 Method of casting metal

Country Status (2)

Country Link
US (1) US1331816A (fr)
FR (1) FR519450A (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2906644A (en) * 1955-06-22 1959-09-29 Int Alloys Ltd Method of sealing interstices in refractory materials and apparatus made of the same
US3116524A (en) * 1960-09-01 1964-01-07 Union Carbide Corp Mold coating
US3340082A (en) * 1962-11-19 1967-09-05 Prochirhin Sa Process of extending the duration of service of ingot molds
US3340084A (en) * 1959-02-19 1967-09-05 Gen Electric Method for producing controlled density heterogeneous material
US3645767A (en) * 1969-02-19 1972-02-29 Monsanto Chemicals Process for coating ceramic molds
US3822736A (en) * 1970-09-30 1974-07-09 N Alexandrov Method for manufacturing cooling members for cooling systems of metallurgical furnaces
US3883347A (en) * 1971-02-16 1975-05-13 Aikoh Co Slag-forming agent for steelmaking

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2906644A (en) * 1955-06-22 1959-09-29 Int Alloys Ltd Method of sealing interstices in refractory materials and apparatus made of the same
US3340084A (en) * 1959-02-19 1967-09-05 Gen Electric Method for producing controlled density heterogeneous material
US3116524A (en) * 1960-09-01 1964-01-07 Union Carbide Corp Mold coating
US3340082A (en) * 1962-11-19 1967-09-05 Prochirhin Sa Process of extending the duration of service of ingot molds
US3645767A (en) * 1969-02-19 1972-02-29 Monsanto Chemicals Process for coating ceramic molds
US3822736A (en) * 1970-09-30 1974-07-09 N Alexandrov Method for manufacturing cooling members for cooling systems of metallurgical furnaces
US3883347A (en) * 1971-02-16 1975-05-13 Aikoh Co Slag-forming agent for steelmaking

Also Published As

Publication number Publication date
FR519450A (fr) 1921-06-09

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