GB545102A - Improvements relating to cast iron - Google Patents

Improvements relating to cast iron

Info

Publication number
GB545102A
GB545102A GB6482/41A GB648241A GB545102A GB 545102 A GB545102 A GB 545102A GB 6482/41 A GB6482/41 A GB 6482/41A GB 648241 A GB648241 A GB 648241A GB 545102 A GB545102 A GB 545102A
Authority
GB
United Kingdom
Prior art keywords
per cent
silicon
iron
casting
per
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
Application number
GB6482/41A
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.)
Mond Nickel Co Ltd
Original Assignee
Mond Nickel Co Ltd
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 Mond Nickel Co Ltd filed Critical Mond Nickel Co Ltd
Publication of GB545102A publication Critical patent/GB545102A/en
Expired legal-status Critical Current

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
    • 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
    • C21C1/08—Manufacture of cast-iron
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C37/00—Cast-iron alloys
    • C22C37/10—Cast-iron alloys containing aluminium or silicon

Abstract

545,102. Heat treating iron alloys. MOND NICKEL CO., Ltd. May 20, 1941, No. 6482. Convention date, May 30, 1940. [Classes 72 and 82 (i)] [Also in Group XXII] Process for producing cast iron, in which the composition of the melt, the casting temperature, the pouring time, and the rate of cooling are so correlated that the iron, as cast, containing 1.5 per cent. to 3.4 per cent. of carbon of which 0.4 per cent. to 1.0 per cent. is non-graphitic, 1.0 per cent. to 4.75 per cent. of silicon, 1 per cent. to 6 per cent. of nickel and 0.2 per cent. to 1.5 per cent. of molybdenum, comprises needles of ferrite in an austenitic matrix. Iron containing 3.4 per cent.-1.5 per cent. of carbon, 3.25 per cent.-1.25 per cent. of silicon, 1.6 per cent. of nickel and 0.2 per cent.-1.3 per cent. of molybdenum, according as the predominent section of the casting varies from 0.25 to 60 inches is rapidly poured, at 2575‹F. to 2800‹F., into a sand or chill mould, silicon equivalent to 0.2 per cent.-1 per cent. being added to the ladle in the form of ferro-silicon, calcium or other alkaline earth metal silicide, silicon carbide, zirconiumsilicon &c., and the casting preferably being cooled from 1500‹F. to 400‹F. at 125-275‹F. per hour and lower alloy contents being used when the cooling is more rapid, i.e. when a chill mould is used. The casting is finally heated to 350- 800‹F. for 1-100 hours to convert more or less of the austenite into an acicular constituent according as high tensile strength or hardness is desired. The iron may contain minor constituents and impurities, e.g. under 0.25 per cent. of sulphur, 0.45 per cent. of phosphorus, 2.5 per cent. of manganese, 3.5 per cent. of copper, 0.5 per cent. of chromium or a smaller amount of borax, 0.2 per cent. of aluminium, 1 per cent. of cobalt, and 0.3 per cent. of titanium, calcium, or zirconium. The inoculant should contain 1.5 per cent. or more of aluminium and is preferably a constituent of the ferro-silicon &c. added.
GB6482/41A 1940-05-30 1941-05-20 Improvements relating to cast iron Expired GB545102A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA545102X 1940-05-30

Publications (1)

Publication Number Publication Date
GB545102A true GB545102A (en) 1942-05-11

Family

ID=4171768

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6482/41A Expired GB545102A (en) 1940-05-30 1941-05-20 Improvements relating to cast iron

Country Status (1)

Country Link
GB (1) GB545102A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3042512A (en) * 1959-06-04 1962-07-03 Meehanite Metal Corp Wear resistant cast iron
GB2133805A (en) * 1983-01-24 1984-08-01 Ford Motor Co Ferrite-bainite cast iron with nodular graphite
EP0272788A1 (en) * 1986-12-22 1988-06-29 Ford Motor Company Limited A method of making wear resistant gray cast iron
CN110157975A (en) * 2019-06-28 2019-08-23 含山县兴达球墨铸铁厂 A kind of preparation method of high-strength thin-walled gray iron casting
CN115608917A (en) * 2022-10-26 2023-01-17 广东富华铸锻有限公司 Preparation process of high-carbon-equivalent non-alloyed gray cast iron casting

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3042512A (en) * 1959-06-04 1962-07-03 Meehanite Metal Corp Wear resistant cast iron
GB2133805A (en) * 1983-01-24 1984-08-01 Ford Motor Co Ferrite-bainite cast iron with nodular graphite
EP0272788A1 (en) * 1986-12-22 1988-06-29 Ford Motor Company Limited A method of making wear resistant gray cast iron
CN110157975A (en) * 2019-06-28 2019-08-23 含山县兴达球墨铸铁厂 A kind of preparation method of high-strength thin-walled gray iron casting
CN115608917A (en) * 2022-10-26 2023-01-17 广东富华铸锻有限公司 Preparation process of high-carbon-equivalent non-alloyed gray cast iron casting
CN115608917B (en) * 2022-10-26 2023-07-07 广东富华铸锻有限公司 Preparation process of high-carbon equivalent non-alloyed gray cast iron casting

Similar Documents

Publication Publication Date Title
US2485760A (en) Cast ferrous alloy
US2488511A (en) Nodular cast iron and the manufacture thereof
US2622022A (en) Method for producing cast iron
US5008074A (en) Inoculant for gray cast iron
US1910034A (en) Pearlitic cast iron and method of producing the same
US1973263A (en) Method of producing pearlitic cast iron
US2154613A (en) Method for producing alloys
GB545102A (en) Improvements relating to cast iron
US2542655A (en) Gray cast iron
US3375105A (en) Method for the production of fine grained steel
US3619172A (en) Process for forming spheroidal graphite in hypereutectoid steels
US2690392A (en) Process for producing improved cast iron
US2643949A (en) Method for the production of iron and steel
US2749238A (en) Method for producing cast ferrous alloy
US3033676A (en) Nickel-containing inoculant
US4224064A (en) Method for reducing iron carbide formation in cast nodular iron
US2610912A (en) Steel-like alloy containing spheroidal graphite
US2885285A (en) Alloyed nodular iron
US2529346A (en) Method for the production of cast iron and alloy addition agent used in method
US2578794A (en) Magnesium-treated malleable iron
US2963364A (en) Manufacture of cast iron
GB967922A (en) Process for the manufacture of iron-silicon-magnesium prealloys
US2809888A (en) Cast iron with high creep resistance and method for making same
US2841488A (en) Nodular cast iron and process of making same
US1984474A (en) Malleable iron casting