US3905809B2 - Alloy for making ductile iron - Google Patents

Alloy for making ductile iron Download PDF

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Publication number
US3905809B2
US3905809B2 US43440374A US3905809B2 US 3905809 B2 US3905809 B2 US 3905809B2 US 43440374 A US43440374 A US 43440374A US 3905809 B2 US3905809 B2 US 3905809B2
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US
United States
Prior art keywords
alloy
ductile iron
making ductile
making
iron
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
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.)
WALTER INDUSTRIES Inc
United States Pipe and Foundry Co LLC
Original Assignee
WALTER INDUSTRIES Inc
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
Priority claimed from US00189670A external-priority patent/US3799767A/en
Application filed by WALTER INDUSTRIES Inc filed Critical WALTER INDUSTRIES Inc
Priority to US434403 priority Critical patent/US3905809B2/en
Publication of US3905809A publication Critical patent/US3905809A/en
Application granted granted Critical
Publication of US3905809B1 publication Critical patent/US3905809B1/en
Assigned to WALTER INDUSTRIES, INC. reassignment WALTER INDUSTRIES, INC. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: UNITED STATES PIPE AND FOUNDRY COMPANY
Assigned to UNITED STATES PIPE AND FOUNDRY COMPANY, A DELAWARE CORPORATION reassignment UNITED STATES PIPE AND FOUNDRY COMPANY, A DELAWARE CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: WALTER INDUSTRIES, INC.
Publication of US3905809B2 publication Critical patent/US3905809B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • C21C1/10—Making spheroidal graphite cast-iron
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C35/00—Master alloys for iron or steel

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
US434403 1971-10-15 1974-01-18 Alloy for making ductile iron Expired - Lifetime US3905809B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US434403 US3905809B2 (en) 1971-10-15 1974-01-18 Alloy for making ductile iron

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US00189670A US3799767A (en) 1971-10-15 1971-10-15 Process and alloy for making ductile iron
US434403 US3905809B2 (en) 1971-10-15 1974-01-18 Alloy for making ductile iron

Publications (3)

Publication Number Publication Date
US3905809A US3905809A (en) 1975-09-16
US3905809B1 US3905809B1 (en) 1987-08-18
US3905809B2 true US3905809B2 (en) 1990-05-29

Family

ID=26885399

Family Applications (1)

Application Number Title Priority Date Filing Date
US434403 Expired - Lifetime US3905809B2 (en) 1971-10-15 1974-01-18 Alloy for making ductile iron

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US (1) US3905809B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4224064A (en) * 1979-04-27 1980-09-23 Union Carbide Corporation Method for reducing iron carbide formation in cast nodular iron
US5008074A (en) * 1990-04-26 1991-04-16 American Alloys, Inc. Inoculant for gray cast iron
US5186233A (en) * 1991-04-04 1993-02-16 Hitachi Metals, Ltd. Method of producing spheroidal graphite cast iron article
CN109837454A (en) * 2019-04-08 2019-06-04 河北恒工机械装备科技有限公司 A kind of big cross section high-intensity and high-tenacity spheroidal graphite cast-iron profile and preparation method thereof

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2814559A (en) * 1953-04-23 1957-11-26 James A Clark Process for the production of nodular cast iron
US2816829A (en) * 1955-11-07 1957-12-17 Ford Motor Co Nodular iron manufacture
US3336118A (en) * 1964-11-09 1967-08-15 Alloy Metal Products Inc Magnesium alloy for cast iron
FR1525645A (en) * 1966-05-24 1968-10-23 Vanadium Corp Of America Improvements to nodular cast iron preparation processes

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4224064A (en) * 1979-04-27 1980-09-23 Union Carbide Corporation Method for reducing iron carbide formation in cast nodular iron
US5008074A (en) * 1990-04-26 1991-04-16 American Alloys, Inc. Inoculant for gray cast iron
US5186233A (en) * 1991-04-04 1993-02-16 Hitachi Metals, Ltd. Method of producing spheroidal graphite cast iron article
CN109837454A (en) * 2019-04-08 2019-06-04 河北恒工机械装备科技有限公司 A kind of big cross section high-intensity and high-tenacity spheroidal graphite cast-iron profile and preparation method thereof

Also Published As

Publication number Publication date
US3905809A (en) 1975-09-16
US3905809B1 (en) 1987-08-18

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Legal Events

Date Code Title Description
STCF Information on status: patent grant

Free format text: PATENTED FILE - (OLD CASE ADDED FOR FILE TRACKING PURPOSES)

RR Request for reexamination filed

Effective date: 19870130

B1 Reexamination certificate first reexamination
RR Request for reexamination filed

Effective date: 19870629

AS Assignment

Owner name: WALTER INDUSTRIES, INC., 1500 NORTH DALE MABRY HIG

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:UNITED STATES PIPE AND FOUNDRY COMPANY;REEL/FRAME:004890/0562

Effective date: 19880517

Owner name: WALTER INDUSTRIES, INC., FLORIDA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:UNITED STATES PIPE AND FOUNDRY COMPANY;REEL/FRAME:004890/0562

Effective date: 19880517

AS Assignment

Owner name: UNITED STATES PIPE AND FOUNDRY COMPANY, 3300 FIRST

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:WALTER INDUSTRIES, INC.;REEL/FRAME:004873/0973

Effective date: 19880517

Owner name: UNITED STATES PIPE AND FOUNDRY COMPANY, A DELAWARE

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:WALTER INDUSTRIES, INC.;REEL/FRAME:004873/0973

Effective date: 19880517