US1773793A - Permanent magnet - Google Patents

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Publication number
US1773793A
US1773793A US429832A US42983230A US1773793A US 1773793 A US1773793 A US 1773793A US 429832 A US429832 A US 429832A US 42983230 A US42983230 A US 42983230A US 1773793 A US1773793 A US 1773793A
Authority
US
United States
Prior art keywords
tungsten
steel
cobalt
chromium
magnetic
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
US429832A
Other languages
English (en)
Inventor
Sattler Carl
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.)
FIRM DEUTSCHE EDELSTAHLWERKE A
FIRM DEUTSCHE EDELSTAHLWERKE AG
Original Assignee
FIRM DEUTSCHE EDELSTAHLWERKE A
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 FIRM DEUTSCHE EDELSTAHLWERKE A filed Critical FIRM DEUTSCHE EDELSTAHLWERKE A
Application granted granted Critical
Publication of US1773793A publication Critical patent/US1773793A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
    • 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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/30—Ferrous alloys, e.g. steel alloys containing chromium with cobalt
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/032—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials
    • H01F1/04—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys

Definitions

  • tungsten steel "yet surpasses the latter as regards thema netic ower.
  • the present invention provi essue a magnetic steel.
  • This new magnetic steel is based upon the combination of steel alloys which, in additionto 1.3 to 6.5% of chromium as the basic alloying constituent, contain tungsten or molybdenum or vanadium or copper or cobalt or manganese era mixture of two or more or all of these alloying metals.
  • netic efficiency With a chromium content of 4.5% and more a smaller amountof tungsten "may be added.
  • the molyb enum nese content has to amount to at least 0.8% with to secure the beneficial action bf the molybdenum all the same, it will r'ove of advantage to use smaller amountsoihholybdenumabout 0. 3 to 0.6%-adding thereto tungsten or cobalt or copper either separately or in suitable combination.
  • the manufacturing costs chromium and 1% of tung'stenor of a-magnetic steel containing about 2% of chromium,
  • Permanent magnets characterized by the fact that they are produced from steel alloys which contain 0.65% to 1.25% of carbon and about 0.25 to 1% of manganese and in addition to 1.3% to 6.5% of chrominum one of the following alloying constituents: tungsten (0.5 to 3%), molybdenm (0.5% to 1 5%), copper (0.5 to 1%) and cobalt (0.5 to 3% 2.
  • Permanent magnets characterized by the fact that they are produced from steel alloys which contain 0.65 to 1.25% of carbon and about 0.25 to 1% of man anese and in addition to 1.3% to 6.5% of c romium several of the following alloying constituents: tungsten (up to 3%), molybdenum (up to 1.5%), copper (up to 1%) and cobalt (up to 3%), the total percentage of said allo ing constituents amounting to a minimum imit of 0.6 and a maximum limit of 7%.
  • Permanent magnets according to claim 1 in which the alloying metals tungsten, molybdenum, cop er and cobalt are replaced at least partially y vanadium.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Power Engineering (AREA)
  • Hard Magnetic Materials (AREA)
  • Soft Magnetic Materials (AREA)
US429832A 1929-03-08 1930-02-19 Permanent magnet Expired - Lifetime US1773793A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES90451D DE626777C (de) 1929-03-08 1929-03-08 Chromstahl fuer Dauermagnete

Publications (1)

Publication Number Publication Date
US1773793A true US1773793A (en) 1930-08-26

Family

ID=7515822

Family Applications (1)

Application Number Title Priority Date Filing Date
US429832A Expired - Lifetime US1773793A (en) 1929-03-08 1930-02-19 Permanent magnet

Country Status (5)

Country Link
US (1) US1773793A (de)
AT (1) AT133485B (de)
CH (1) CH146612A (de)
DE (1) DE626777C (de)
FR (1) FR690768A (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4337100A (en) * 1980-10-06 1982-06-29 Bell Telephone Laboratories, Incorporated Magnetically anisotropic alloys for magnetically actuated devices
US4401483A (en) * 1980-10-06 1983-08-30 Bell Telephone Laboratories, Incorporated Method for making a magnetically anisotropic element
US4420732A (en) * 1980-10-06 1983-12-13 Bell Telephone Laboratories, Incorporated Magnetically actuated device comprising a magnetically anisotropic element
US5611872A (en) * 1993-08-30 1997-03-18 The Arnold Engineering Company Magnetic strips and methods for making the same
US5653824A (en) * 1993-08-30 1997-08-05 The Arnold Engineering Company Magnetic strips and methods for making the same
US6582765B2 (en) 2000-06-29 2003-06-24 Borgwarner, Inc. Carbide coated steel articles and method of making them

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE968681C (de) * 1937-04-01 1958-03-20 Eisen & Stahlind Ag Schnelldrehstahl
DE968351C (de) * 1937-10-01 1958-02-06 Eisen & Stahlind Ag Schnelldrehstaehle
DE970215C (de) * 1937-11-24 1958-08-28 Eisen & Stahlind Ag Schnelldrehstaehle

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4337100A (en) * 1980-10-06 1982-06-29 Bell Telephone Laboratories, Incorporated Magnetically anisotropic alloys for magnetically actuated devices
US4401483A (en) * 1980-10-06 1983-08-30 Bell Telephone Laboratories, Incorporated Method for making a magnetically anisotropic element
US4420732A (en) * 1980-10-06 1983-12-13 Bell Telephone Laboratories, Incorporated Magnetically actuated device comprising a magnetically anisotropic element
US5611872A (en) * 1993-08-30 1997-03-18 The Arnold Engineering Company Magnetic strips and methods for making the same
US5653824A (en) * 1993-08-30 1997-08-05 The Arnold Engineering Company Magnetic strips and methods for making the same
US6582765B2 (en) 2000-06-29 2003-06-24 Borgwarner, Inc. Carbide coated steel articles and method of making them
US6607850B2 (en) 2000-06-29 2003-08-19 Borgwarner, Inc. Hard steel articles
US6680129B2 (en) 2000-06-29 2004-01-20 Borgwarner Inc. Steel composition

Also Published As

Publication number Publication date
AT133485B (de) 1933-05-26
DE626777C (de) 1936-03-02
CH146612A (de) 1931-04-30
FR690768A (fr) 1930-09-25

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