US1004987A - Iron-silicon ingot. - Google Patents

Iron-silicon ingot. Download PDF

Info

Publication number
US1004987A
US1004987A US60529811A US1911605298A US1004987A US 1004987 A US1004987 A US 1004987A US 60529811 A US60529811 A US 60529811A US 1911605298 A US1911605298 A US 1911605298A US 1004987 A US1004987 A US 1004987A
Authority
US
United States
Prior art keywords
iron
per cent
silicon
silicon ingot
manganese
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
US60529811A
Inventor
Eugene A Byrnes
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.)
PITTSBURGH PURE METAL PRODUCTS Co
Original Assignee
PITTSBURGH PURE METAL PRODUCTS Co
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 PITTSBURGH PURE METAL PRODUCTS Co filed Critical PITTSBURGH PURE METAL PRODUCTS Co
Priority to US60529811A priority Critical patent/US1004987A/en
Application granted granted Critical
Publication of US1004987A publication Critical patent/US1004987A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese

Definitions

  • the present invention is a cast ingot, for conversion into such commercial shapes and articles as are exposed to atmospheric and oxidizing influences, consisting almost entirely of iron; containing very little carbon, sulfur, phosphorus, manganese, oxygen and nitrogen; and having alloyed therewith a small amount of silicon.
  • the preferred product contains up to 99.7 per cent. of iron; not over 0.15 total per cent. of carbon, sulfur, phosphorus, manganese, oxygen and nitrogen; and 0.15 per cent. or more of silicon.
  • This product is preferably manufactured in the basic open-hearth with basic additions, from a charge of pure pig iron and wroughtiron scrap. The temperature is raised to and maintained at a high point throughout the purification, without unduly increasing the oxidizing character of the flame, until the.
  • carbon, sulfur, phosphorus, manganese and silicon have been reduced to a total per cent. of not over 0.15.
  • the combined oxygen is preferably removed by the use of both sillcon and titanium, the latter also serving to practically eliminate the nitrogen.
  • the silicon may be added in the form of the 50% ferro-alloy; the titanium as a 30% Specification of Letters Patent.
  • ferro-alloy Theferro-alloys may be added at the end of the purifying stage, or portions of them may be added toward the end of the treatment.
  • the silicon is added in such excess as to leave the desired per cent., say from 0.10 to 0.15 in the finished product.
  • the titanium is preferably added in the minimum amount necessary to eliminate oxygen and nitrogen. In som'ecases it may be desirable, in order to readily obtain a high temperature and facilitate the final reaction, to tap the metal from the open- The slag may then be largely removed in transit, a neutral'atmosphere being maintained in the electric furnace.
  • I claim 1 As a new article of manufacture, a cast ingot containing at least 99.5 per cent. of iron; not over 0.15 total per cent. of carbon, sulfur, phosphorus and manganese; and at least 0.10 per cent. of silicon.
  • a cast ingot containing at least 99.5 per cent. of iron; not over 0.15 total per cent. of carbon, sulfur, phosphorus, manganese, oxygen and nitrogen; and at least 0.10 per cent. of silicon.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Description

UNITED STATES PATENT OFFICE.
EUGENE A. BYRNES, OF WASHINGTON, DISTRICT OF COLUMBIA, ASSIGNOR TO PITTS- BURGH PURE METAL PRODUCTS COMPANY, OF PITTSBURGH, PENNSYLVANIA, A
CORPORATION OF PENNSYLVANIA.
IRON-SILICON INGOT.
No Drawing.
To all whom it may concern:
Be it known that I, EUGENE A. BYRNES, a citizen of the United States, residing at Washington, in the District of Columbia, have invented certain 'new and useful Improvements in Iron-Silicon Ingots, of which the following is a specification.
It is now Well recognized that ordinary Bessemer and open-hearth steels rust more readily than wrought or puddled iron, and that the manganese commonly used as a deoxidizing addition in the production of such steels is apt tosegregate and increases the rate of corrosion.
The present invention is a cast ingot, for conversion into such commercial shapes and articles as are exposed to atmospheric and oxidizing influences, consisting almost entirely of iron; containing very little carbon, sulfur, phosphorus, manganese, oxygen and nitrogen; and having alloyed therewith a small amount of silicon. The preferred productcontains up to 99.7 per cent. of iron; not over 0.15 total per cent. of carbon, sulfur, phosphorus, manganese, oxygen and nitrogen; and 0.15 per cent. or more of silicon. This product is preferably manufactured in the basic open-hearth with basic additions, from a charge of pure pig iron and wroughtiron scrap. The temperature is raised to and maintained at a high point throughout the purification, without unduly increasing the oxidizing character of the flame, until the.
carbon, sulfur, phosphorus, manganese and silicon have been reduced to a total per cent. of not over 0.15. The combined oxygen is preferably removed by the use of both sillcon and titanium, the latter also serving to practically eliminate the nitrogen. The silicon may be added in the form of the 50% ferro-alloy; the titanium as a 30% Specification of Letters Patent.
- Application filed January 28, 1911.
- hearth furnace into an electric furnace.
Patented Oct. 3, 1911.
Serial No. 605,298.
ferro-alloy. Theferro-alloys may be added at the end of the purifying stage, or portions of them may be added toward the end of the treatment. The silicon is added in such excess as to leave the desired per cent., say from 0.10 to 0.15 in the finished product. The titanium is preferably added in the minimum amount necessary to eliminate oxygen and nitrogen. In som'ecases it may be desirable, in order to readily obtain a high temperature and facilitate the final reaction, to tap the metal from the open- The slag may then be largely removed in transit, a neutral'atmosphere being maintained in the electric furnace.
I claim 1. As a new article of manufacture, a cast ingot containing at least 99.5 per cent. of iron; not over 0.15 total per cent. of carbon, sulfur, phosphorus and manganese; and at least 0.10 per cent. of silicon.
2. As a new article of manufacture, a cast ingot containing at least 99.5 per cent. of iron; not over 0.15 total per cent. of carbon, sulfur, phosphorus, manganese, oxygen and nitrogen; and at least 0.10 per cent. of silicon.
3: As a new article of manufacture, a cast ingot containing from 99.5 to 99.7 per cent. of iron; not over 0.15 total per cent. of carbon, sulfur, phosphorus, manganese, oxygen and nitrogen; and at least 0.15 per cent. of silicon.
In testimony whereof, afiix'my signature in presence of two w1tnesses..
ROBERT I. I-Imsrznn, JOHN H. Sreonns.
US60529811A 1911-01-28 1911-01-28 Iron-silicon ingot. Expired - Lifetime US1004987A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US60529811A US1004987A (en) 1911-01-28 1911-01-28 Iron-silicon ingot.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US60529811A US1004987A (en) 1911-01-28 1911-01-28 Iron-silicon ingot.

Publications (1)

Publication Number Publication Date
US1004987A true US1004987A (en) 1911-10-03

Family

ID=3073301

Family Applications (1)

Application Number Title Priority Date Filing Date
US60529811A Expired - Lifetime US1004987A (en) 1911-01-28 1911-01-28 Iron-silicon ingot.

Country Status (1)

Country Link
US (1) US1004987A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4171803A (en) * 1977-09-12 1979-10-23 Smith Roger D Karate practice breaking board

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4171803A (en) * 1977-09-12 1979-10-23 Smith Roger D Karate practice breaking board

Similar Documents

Publication Publication Date Title
US1004987A (en) Iron-silicon ingot.
DE59800345D1 (en) Fire-resistant nickel-free steels for steel construction and processes for the production of heavy plates from them
JPH0649895B2 (en) Method for dephosphorizing molten iron containing chromium
US1322158A (en) A corpora
US1017620A (en) Method of denitrogenizing practically pure iron.
US2137945A (en) Process for producing titanium steel
US1081532A (en) Purifying steel.
SU141173A1 (en) Manganese alloy
US952391A (en) Steel alloy.
US801656A (en) Process for the deoxidation of ingot-iron, ingot-steel, &c.
US1035947A (en) Alloy.
US1017807A (en) Method of producing steel metals.
US3488187A (en) Low-chromium alloy steel
GB190315032A (en) Improvements in the Manufacture of Steel
US747661A (en) Manufacture of open-hearth steel.
US1568186A (en) Process for dephosphorizing iron and steel
US747662A (en) Manufacture of steel.
GB190125476A (en) Improvements in the Manufacture of Steel.
US1261907A (en) Manufacture of spiegel.
SU1208090A1 (en) Medium-carbon low-alloyed steel for high-strength pipes of petroleum grades
US1612570A (en) Making iron alloys
GB191116601A (en) Improvements in the Manufacture of Ingot Iron and Steel.
GB190307027A (en) Improvements in the Production of Iron and Steel.
US1594133A (en) Process of treating ingot iron
GB197733A (en) Improvements in and relating to the manufacture of ferrochromium alloys