US986359A - Iron manufacture. - Google Patents
Iron manufacture. Download PDFInfo
- Publication number
- US986359A US986359A US58144810A US1910581448A US986359A US 986359 A US986359 A US 986359A US 58144810 A US58144810 A US 58144810A US 1910581448 A US1910581448 A US 1910581448A US 986359 A US986359 A US 986359A
- Authority
- US
- United States
- Prior art keywords
- iron
- sulfur
- iron manufacture
- phosphorus
- ingot
- 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
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/04—Removing impurities by adding a treating agent
- C21C7/06—Deoxidising, e.g. killing
Definitions
- the present invention comprehending the roduction of a markedly superior grade of iron from com a'ratively low priced material and by a met 10d characterized by special economy and regular certainty of result, will be readily understood from the following description.
- furnace capable of what might be termed a particularly fierce action. Having. in view the completionof the ultimate product and the other material charged into the furnace, the furnace is to be charged with lime to bring the sulfur .and phosphorus down to the limit 'hereinafterstated for, the product, and it is to be charged with iron ojre-t-o bring down the carbon and manganese to the limit hereinafter stated for the product.
- the furnace is to be charged with pig iron of the following characteristics :-Must be machine cast, sand castpig being unsuitable. Phosphorus to be not over 1%, and as low as possible. and as low as possible. Silicon to be not over 2% and as low as possible. Up to of ordinary wrought iron or steel-scrap, wrought ironmuch preferred, may be added, but not malleable or other cast iron scap. All is to be melted and brought to a temperature of not .less than 2850 deg. Fah. 'Tap into ladle with a degasifying agent, aluminum preferred. .Cast in ingot mold. Everything from tapping to casting is to be donewith utmostn-apidit'y.
- the inaterial of the ingot has the following characteristics :Structure is crystalline. Density greater than purest charcoal iron. D'uctility extremely high. Tensile strength equal to extra good charcoal iron. Forges and rolls with facility at usual temperatures sulfur below 035%, ph sphorus below 075%,
- I claim I i The improved method of iron manufacture consistingffirst, in taking machine cast pig iron whose phosphorus is not over 1% and whose sulfur is notover .05 0 and whose silicon is not over 2%, along with lime to reduce sulfur and phosphorus, and iron ore to reduce carbon and manganese: second, melting the charge and bringmg it to a temperature of not less than 2850 deg. Falm" third, tapping the melted hot charge into a ladle with a degasifying agent: fourth, ouring the ladle c arge into an ingot mol the temperature between tap ing and ouring to beat no time below 27 5 deg. Fa substantially as set forth.
Description
UNITED STATES PATENT oF oE,
ROBERT B. oarmanan, an, or nrnnnnrown, OHIO, assmnon TO THE m'rnnna- 'lIONAL mn'ranrnonocrs company; or NEWARK, new JERSEY..
IRON MANUFACTURE.
Specification of Letters Patent.
Patented. Mar. '7, 1911.
= NoDrawing. Application filed July 30. 1908, Serial No. 446,124. Renewed September 10, 1910. Serial No.
at Middletown, Butler county, Ohio, have invented certain new and useful Improvements in, Iron Manufacture, of which the following is a specification.
The present invention, comprehending the roduction of a markedly superior grade of iron from com a'ratively low priced material and by a met 10d characterized by special economy and regular certainty of result, will be readily understood from the following description.
There is to be employed a high-powered furnace capable of what might be termed a particularly fierce action. Having. in view the completionof the ultimate product and the other material charged into the furnace, the furnace is to be charged with lime to bring the sulfur .and phosphorus down to the limit 'hereinafterstated for, the product, and it is to be charged with iron ojre-t-o bring down the carbon and manganese to the limit hereinafter stated for the product.
The furnace is to be charged with pig iron of the following characteristics :-Must be machine cast, sand castpig being unsuitable. Phosphorus to be not over 1%, and as low as possible. and as low as possible. Silicon to be not over 2% and as low as possible. Up to of ordinary wrought iron or steel-scrap, wrought ironmuch preferred, may be added, but not malleable or other cast iron scap. All is to be melted and brought to a temperature of not .less than 2850 deg. Fah. 'Tap into ladle with a degasifying agent, aluminum preferred. .Cast in ingot mold. Everything from tapping to casting is to be donewith utmostn-apidit'y. After the charge has been brought to its hi h heat, no temperatures less than 2775 deg. ah. must exist in the metal before it reaches the in ot mold. The resulting ingot is practical y free from iping. The ingot thus produced represents t e best of iron products made from comparatively cheap material and b an economical and practically regular an certain method.
Sulfur to be not. over 05%,
The inaterial of the ingot has the following characteristics :Structure is crystalline. Density greater than purest charcoal iron. D'uctility extremely high. Tensile strength equal to extra good charcoal iron. Forges and rolls with facility at usual temperatures sulfur below 035%, ph sphorus below 075%,
carbon below .1576.
In the above analysis maximum values are given and the perfection of the product and the practical regularity and certainty of the method may be judged from the fact that in every day practice by this method I am re ularly producing a product analyzed as follows :silicon, trace; manganese, .030; sulfur, .020; phosphorus, .005; carbon, .030;
iron, 99.915.
I claim I i The improved method of iron manufacture consistingffirst, in taking machine cast pig iron whose phosphorus is not over 1% and whose sulfur is notover .05 0 and whose silicon is not over 2%, along with lime to reduce sulfur and phosphorus, and iron ore to reduce carbon and manganese: second, melting the charge and bringmg it to a temperature of not less than 2850 deg. Falm" third, tapping the melted hot charge into a ladle with a degasifying agent: fourth, ouring the ladle c arge into an ingot mol the temperature between tap ing and ouring to beat no time below 27 5 deg. Fa substantially as set forth.
1 ROBERT B. OARNAHAN, JR.
' Witnesses: PAUL M. Hoovnn, M. S. Barman.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US58144810A US986359A (en) | 1910-09-10 | 1910-09-10 | Iron manufacture. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US58144810A US986359A (en) | 1910-09-10 | 1910-09-10 | Iron manufacture. |
Publications (1)
Publication Number | Publication Date |
---|---|
US986359A true US986359A (en) | 1911-03-07 |
Family
ID=3054700
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US58144810A Expired - Lifetime US986359A (en) | 1910-09-10 | 1910-09-10 | Iron manufacture. |
Country Status (1)
Country | Link |
---|---|
US (1) | US986359A (en) |
-
1910
- 1910-09-10 US US58144810A patent/US986359A/en not_active Expired - Lifetime
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US11466349B2 (en) | Spheroidal graphite cast iron | |
US6110300A (en) | Tool for glass molding operations and method of manufacture thereof | |
US2855336A (en) | Nodular iron process of manufacture | |
US4092178A (en) | Process for producing a steel having excellent strength and toughness | |
US986359A (en) | Iron manufacture. | |
US2867555A (en) | Nodular cast iron and process of manufacture thereof | |
US5034069A (en) | Low white cast iron grinding slug | |
US2578794A (en) | Magnesium-treated malleable iron | |
US4338128A (en) | Low alloy white cast iron | |
JPH0230731A (en) | High tensile ductile cast iron having excellent elongation and its manufacture | |
US2111005A (en) | Hard magnetic steel and methods of making such steel | |
US20210025040A1 (en) | Silicon based alloy, method for the production thereof and use of such alloy | |
RU2019569C1 (en) | Process for manufacturing castings of white iron | |
US1274245A (en) | Method of producing pig-iron. | |
JPS6056056A (en) | Process-hardenable austenite manganese steel and manufacture | |
US1849502A (en) | Gray cast iron and method of producing the same from iron-silicon alloys | |
US1492567A (en) | Process of making high-speed steel tools | |
EP3802899B1 (en) | Silicon based alloy, method for the production thereof and use of such alloy | |
US2014559A (en) | Preparation of iron having improved characteristics | |
US1680301A (en) | Steel alloy | |
US2256674A (en) | Method of making malleable cast iron | |
US1333824A (en) | Manufacture of iron | |
US2207350A (en) | Method of making alloys | |
US1709817A (en) | Process oe making materials containing tungsten | |
US2069423A (en) | Ferrous alloy |