US2306976A - Process for the removal from cast iron the oxides introduced therein and other foreign inclusions - Google Patents
Process for the removal from cast iron the oxides introduced therein and other foreign inclusions Download PDFInfo
- Publication number
- US2306976A US2306976A US435832A US43583242A US2306976A US 2306976 A US2306976 A US 2306976A US 435832 A US435832 A US 435832A US 43583242 A US43583242 A US 43583242A US 2306976 A US2306976 A US 2306976A
- Authority
- US
- United States
- Prior art keywords
- cast iron
- removal
- foreign inclusions
- oxides introduced
- oxides
- 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
Links
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
Definitions
- Patented Dec. 29, 1942 PROCESS FOR THE REMOVAL FROM CAST IRON THE OXIDES INTRODUCED THERE- IN AND OTHER FOREIGN INCLUSIONS Nicholas L. Peder-sen, Clifton, N. J.
- This invention relates to the process of removing the oxides and other foreign inclusions introduced into cast iron in its various forms known as gray iron, semi-steel and alloyed cast iron in one single treatment by means of adding a distinct chemical known as sodium silico fluoride to the molten metal as a ladle scavenger or flux, or added to the stream of hot iron in the spout as it leaves the cupola and has for its object the purpose of furnishing to the trade a. superior casting product at a price at par with that charged for the product now cast from the untreated metal.
- a distinct chemical known as sodium silico fluoride
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
- Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
Description
Patented Dec. 29, 1942 PROCESS FOR THE REMOVAL FROM CAST IRON THE OXIDES INTRODUCED THERE- IN AND OTHER FOREIGN INCLUSIONS Nicholas L. Peder-sen, Clifton, N. J.
No Drawing. Application March 23, 1942, Serial No. 435,832
lClaim.
This invention relates to the process of removing the oxides and other foreign inclusions introduced into cast iron in its various forms known as gray iron, semi-steel and alloyed cast iron in one single treatment by means of adding a distinct chemical known as sodium silico fluoride to the molten metal as a ladle scavenger or flux, or added to the stream of hot iron in the spout as it leaves the cupola and has for its object the purpose of furnishing to the trade a. superior casting product at a price at par with that charged for the product now cast from the untreated metal.
I have found that sodium silico fluoride when added to the molten iron in amounts up to five reduction in rejects due to such defects as blow holes, sponge and slag, the casting product can pounds for every 2000 pounds of iron to be treatt ed will result in a cast iron more free of blow be manufactured and sold at a price at par with castings made from the ordinary run of untreated metal.
I claim:
The process of removing from cast iron the oxides introduced therein and other foreign inclusions by adding sodium silico fluoride to the molten cast iron.
NICHOLAS L. PEDERSEN.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US435832A US2306976A (en) | 1942-03-23 | 1942-03-23 | Process for the removal from cast iron the oxides introduced therein and other foreign inclusions |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US435832A US2306976A (en) | 1942-03-23 | 1942-03-23 | Process for the removal from cast iron the oxides introduced therein and other foreign inclusions |
Publications (1)
Publication Number | Publication Date |
---|---|
US2306976A true US2306976A (en) | 1942-12-29 |
Family
ID=23730002
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US435832A Expired - Lifetime US2306976A (en) | 1942-03-23 | 1942-03-23 | Process for the removal from cast iron the oxides introduced therein and other foreign inclusions |
Country Status (1)
Country | Link |
---|---|
US (1) | US2306976A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2750279A (en) * | 1952-05-24 | 1956-06-12 | Pennsylvania Salt Mfg Co | Process of treating cast iron with iron-fluorine compounds |
US2760859A (en) * | 1952-09-10 | 1956-08-28 | Edward H Graf | Metallurgical flux compositions |
US2965477A (en) * | 1956-09-24 | 1960-12-20 | Foundry Services Int Ltd | Treatment of molten metals |
US5284617A (en) * | 1992-09-04 | 1994-02-08 | General Motors Corporation | Process for dealuminizing molten cast iron |
-
1942
- 1942-03-23 US US435832A patent/US2306976A/en not_active Expired - Lifetime
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2750279A (en) * | 1952-05-24 | 1956-06-12 | Pennsylvania Salt Mfg Co | Process of treating cast iron with iron-fluorine compounds |
US2760859A (en) * | 1952-09-10 | 1956-08-28 | Edward H Graf | Metallurgical flux compositions |
US2965477A (en) * | 1956-09-24 | 1960-12-20 | Foundry Services Int Ltd | Treatment of molten metals |
US5284617A (en) * | 1992-09-04 | 1994-02-08 | General Motors Corporation | Process for dealuminizing molten cast iron |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FR1250107A (en) | Process for producing metals and alloys such as steel and cast iron, and device for implementing this process | |
ES344448A1 (en) | Continuously cast steel slabs and method of making same | |
US2306976A (en) | Process for the removal from cast iron the oxides introduced therein and other foreign inclusions | |
GB1123778A (en) | Continuous casting process | |
US585036A (en) | Making ingots or castings of iron or steel | |
US1247252A (en) | Ieon alloy | |
US2659669A (en) | Composition and method for the production of alloys | |
GB848567A (en) | Improvements in a method of treating iron and steel to remove dissolved oxygen | |
US1437405A (en) | Method and means of treating molten metal | |
US2661279A (en) | Treatment of steel | |
SU441326A1 (en) | Complex modifier | |
GB193664A (en) | Improvements in pouring ladles | |
GB944124A (en) | Iron-chromium-aluminium alloy | |
SU502041A1 (en) | Synthetic slag | |
SU541864A1 (en) | Exothermic Blend | |
SU931782A1 (en) | Master alloy | |
GB729490A (en) | Liquid-cooled metallic chill-mould for the continuous casting of ingots of square cross section from metals of high melting point, especially iron and steel | |
GB1007175A (en) | Alloys | |
SU415321A1 (en) | ||
SU528995A1 (en) | Flux | |
SU497349A1 (en) | Ligature | |
US1028047A (en) | Composition of matter. | |
TR201915908A2 (en) | TUNDISH COVER POWDER AND PRODUCTION METHOD | |
GB913293A (en) | Improvements relating to the production of cast iron | |
FR845943A (en) | Improvements to bags or containers for the application of coatings of molten metal to various products and to methods for such application |