US1762109A - Cast-iron alloy - Google Patents

Cast-iron alloy Download PDF

Info

Publication number
US1762109A
US1762109A US185649A US18564927A US1762109A US 1762109 A US1762109 A US 1762109A US 185649 A US185649 A US 185649A US 18564927 A US18564927 A US 18564927A US 1762109 A US1762109 A US 1762109A
Authority
US
United States
Prior art keywords
alloy
cast
cast iron
iron alloy
silicon
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
US185649A
Inventor
Taylor Clifton
Herman L Greene
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.)
MOLYBDENUM Corp
Original Assignee
MOLYBDENUM CORP
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 MOLYBDENUM CORP filed Critical MOLYBDENUM CORP
Priority to US185649A priority Critical patent/US1762109A/en
Application granted granted Critical
Publication of US1762109A publication Critical patent/US1762109A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C37/00Cast-iron alloys

Definitions

  • the invention relates to cast iron alloys
  • loy which may be easily hardened to a variable degree, and to which a very high degree of hardness may be given, and which may be more readily machined than ordinary cast iron.
  • ordinary cast iron containing the usual amounts of carbon and silicon has certain amounts of nickel and molybdenum added to it, and contains no other purposely added alloying constituent.
  • the amounts of carbon and silicon present in ordinary cast iron, as here contemplated, are from about 1.0 to 4.0% carbon, and from about .5 to 2.5% silicon. To this there are added nickel from about 1.0 to about 4.0%, and molybdenum not more than about 1.0%.
  • the alloy will of course contain other constituents present as impurities and as incidental to its manufacture from commercial scrap and other materials
  • small amounts of sulphur, phosphorus and manganese may be present as impurities from the pig metal used in a cupola melt
  • larger amounts of chromium, vanadium, copper, etc. may be present as constituents found in commercial scrap used also in a cupola melt.
  • nickel and about 25% mol bdenum are preferred.
  • the content of carbon is preferably about 1.5% and that of silicon preferably about 1.5%.”
  • suc articles is tappets for operating the valves of internal combustion engines.
  • the alloy is also particularly suitable for the manufacture of cylinder blocks and pistons for internal combustion en ines in that it is very resistant to wear, asbut little tendency to grow, and is readily machinable.
  • a cast iron alloy consisting of about 1.5% nickel, about 25% molybdenum silicon from about .70 to about 2.5%, an car bon from about 1.5 to about 4.0%, the remainder of the alloy being iron except for constituents present as impurities and as incidental to the manufacture of the alloy.
  • a cast iron alloy consisting of from about 1.0 to about 4.0% nickel, a substantial and eflective amount of molybdenum up to about 1.0%, silicon from about .80 to about 2.5%, and carbon from about 1.5 to about 4.0%, the remainder of the alloy being iron except for constituents present as impurities and as incidental to the manufacture of the alloy.
  • a cast iron alloy consisting of about 1.5% nickel, about 25% molybdenum, about 1.5% silicon, and from about 1.5 to 4.0% carbon, the remainder of the alloy being iron except for constituents present as impurities and as incidental to the manufacture of the alloy.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)

Description

CLIFTON TAYLOR, OF PITTSBURGH, PENNSYLVANIA,
ASSIGNORS TO MOLYBDENUM CORPORATION OF AMERICA, OF PITTS- A CORPORATION OF PENNSYLVANIA Patented June 3, 1930 UNITED STATES PATENT OFFICE TOLEDO, OHIO, BURGH, PENNSYLVANIA,
AND HERMAN L. GREENE, 0E
CAST-IRON ALLOY No Drawing.
The invention relates to cast iron alloys,
loy which may be easily hardened to a variable degree, and to which a very high degree of hardness may be given, and which may be more readily machined than ordinary cast iron.
In the practice of this invention ordinary cast iron, containing the usual amounts of carbon and silicon has certain amounts of nickel and molybdenum added to it, and contains no other purposely added alloying constituent. The amounts of carbon and silicon present in ordinary cast iron, as here contemplated, are from about 1.0 to 4.0% carbon, and from about .5 to 2.5% silicon. To this there are added nickel from about 1.0 to about 4.0%, and molybdenum not more than about 1.0%. The alloy will of course contain other constituents present as impurities and as incidental to its manufacture from commercial scrap and other materials For example, small amounts of sulphur, phosphorus and manganese may be present as impurities from the pig metal used in a cupola melt, and larger amounts of chromium, vanadium, copper, etc., may be present as constituents found in commercial scrap used also in a cupola melt.
Within the stated ranges of the purposely added alloying constituents, it is preferred to use about 1.5% nickel and about 25% mol bdenum. The content of carbon is preferably about 1.5% and that of silicon preferably about 1.5%."
We have found that! when articles made from the alloy provided according to this invention are cast in permanent or other chill molds, they have a very hi h hardness, ranging from about 700 to 800 l3rinell, and that when cast in sand or other non-chill molds, the have a hardness of about 200 Brinell. lthough the latter is about 50 points higher than ordinary cast iron, we have nevertheless found that the alloy has a dense close grain and that it is more readily machinable than ordinary cast iron.
Having these physical characteristics, the
Application filed April 21,
1927. Serial No. 185,649.
ifs desired to provide with hardened suraces, sired to have relatively soft for machining and other purposes. An example of suc articles is tappets for operating the valves of internal combustion engines. The alloy is also particularly suitable for the manufacture of cylinder blocks and pistons for internal combustion en ines in that it is very resistant to wear, asbut little tendency to grow, and is readily machinable.
According to the patent statutes we have explained the principle of our invention and have described what we now consider to represent its best embodiment.- However, we desire to have it understood that, within the and other portions of which it is de-h scope of the appended claims, the invention may be embodied in cast iron alloys other than that specifically described. e
We claim as our invention:
1. A cast iron alloy consisting of about 1.5% nickel, about 25% molybdenum silicon from about .70 to about 2.5%, an car bon from about 1.5 to about 4.0%, the remainder of the alloy being iron except for constituents present as impurities and as incidental to the manufacture of the alloy.
2. A cast iron alloy consisting of from about 1.0 to about 4.0% nickel, a substantial and eflective amount of molybdenum up to about 1.0%, silicon from about .80 to about 2.5%, and carbon from about 1.5 to about 4.0%, the remainder of the alloy being iron except for constituents present as impurities and as incidental to the manufacture of the alloy.
3. A cast iron alloy consisting of about 1.5% nickel, about 25% molybdenum, about 1.5% silicon, and from about 1.5 to 4.0% carbon, the remainder of the alloy being iron except for constituents present as impurities and as incidental to the manufacture of the alloy.
In testimony whereof, we hereunto sign
US185649A 1927-04-21 1927-04-21 Cast-iron alloy Expired - Lifetime US1762109A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US185649A US1762109A (en) 1927-04-21 1927-04-21 Cast-iron alloy

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US185649A US1762109A (en) 1927-04-21 1927-04-21 Cast-iron alloy

Publications (1)

Publication Number Publication Date
US1762109A true US1762109A (en) 1930-06-03

Family

ID=22681873

Family Applications (1)

Application Number Title Priority Date Filing Date
US185649A Expired - Lifetime US1762109A (en) 1927-04-21 1927-04-21 Cast-iron alloy

Country Status (1)

Country Link
US (1) US1762109A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3302595A (en) * 1964-02-13 1967-02-07 Erik A Sabel Safe
US3411957A (en) * 1965-06-01 1968-11-19 Nisso Seiko Kabushiki Kaisha Method of manufacturing a cast iron roll
CN102162060A (en) * 2011-03-30 2011-08-24 中南大学 Cone ring material of synchronizer and preparation method thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3302595A (en) * 1964-02-13 1967-02-07 Erik A Sabel Safe
US3411957A (en) * 1965-06-01 1968-11-19 Nisso Seiko Kabushiki Kaisha Method of manufacturing a cast iron roll
CN102162060A (en) * 2011-03-30 2011-08-24 中南大学 Cone ring material of synchronizer and preparation method thereof

Similar Documents

Publication Publication Date Title
CN112575242A (en) Steel for alloy structure and manufacturing method thereof
US1762109A (en) Cast-iron alloy
US3485683A (en) Method of heat treating a ductile austenitic ductile iron casting including refrigeration treatment and article produced thereby
JPS613866A (en) Wear resistant, tough and hard cast iron and its manufacture
US2516524A (en) White cast iron
US5094923A (en) Air hardening steel
US3128175A (en) Low alloy, high hardness, temper resistant steel
US2357452A (en) Aluminum alloys
KR100716343B1 (en) Brake disk and method for manufacturing the same
US2179695A (en) Ferrous alloy
JPS5911656B2 (en) High hardness wear-resistant cast iron
US2242865A (en) Nickel alloy
US2214652A (en) Iron alloy
US3042512A (en) Wear resistant cast iron
US2046913A (en) Hard ferrous alloy
US2075990A (en) Cast iron
US2105220A (en) Ferrous metal
US2225997A (en) Ferrous alloy
US2174286A (en) Ferrous alloy
US2568013A (en) Cast graphitic nickel alloy and method of making same
US2167301A (en) Alloy cast iron
US3690956A (en) Valve
US2174282A (en) Ferrous alloy
JP2970387B2 (en) Wear-resistant steel and piston ring or liner materials for internal combustion engines
US1898390A (en) Chilled iron roll