NL155312B - PROCESS FOR THE PREPARATION OF STEEL AND SPRINGS MADE OF THAT STEEL. - Google Patents

PROCESS FOR THE PREPARATION OF STEEL AND SPRINGS MADE OF THAT STEEL.

Info

Publication number
NL155312B
NL155312B NL6908750A NL6908750A NL155312B NL 155312 B NL155312 B NL 155312B NL 6908750 A NL6908750 A NL 6908750A NL 6908750 A NL6908750 A NL 6908750A NL 155312 B NL155312 B NL 155312B
Authority
NL
Netherlands
Prior art keywords
steel
preparation
springs made
springs
Prior art date
Application number
NL6908750A
Other languages
Dutch (nl)
Other versions
NL6908750A (en
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Publication of NL6908750A publication Critical patent/NL6908750A/xx
Publication of NL155312B publication Critical patent/NL155312B/en

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B1/00—Details of electric heating devices
    • H05B1/02—Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
    • H05B1/0227—Applications
    • H05B1/023—Industrial applications
    • H05B1/0247—For chemical processes
    • 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
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/48—Ferrous alloys, e.g. steel alloys containing chromium with nickel with niobium or tantalum
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B1/00—Details of electric heating devices
    • H05B1/02—Automatic switching arrangements specially adapted to apparatus ; Control of heating devices

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Steel (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
NL6908750A 1968-06-10 1969-06-09 PROCESS FOR THE PREPARATION OF STEEL AND SPRINGS MADE OF THAT STEEL. NL155312B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3941468A JPS495090B1 (en) 1968-06-10 1968-06-10

Publications (2)

Publication Number Publication Date
NL6908750A NL6908750A (en) 1969-12-12
NL155312B true NL155312B (en) 1977-12-15

Family

ID=12552311

Family Applications (1)

Application Number Title Priority Date Filing Date
NL6908750A NL155312B (en) 1968-06-10 1969-06-09 PROCESS FOR THE PREPARATION OF STEEL AND SPRINGS MADE OF THAT STEEL.

Country Status (4)

Country Link
JP (1) JPS495090B1 (en)
DE (1) DE1929116B1 (en)
GB (1) GB1274465A (en)
NL (1) NL155312B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5728828U (en) * 1980-07-28 1982-02-15
NL193218C (en) * 1985-08-27 1999-03-03 Nisshin Steel Company Method for the preparation of stainless steel.

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1045000A (en) * 1964-09-23 1966-10-05 Int Nickel Ltd Alloy steel

Also Published As

Publication number Publication date
GB1274465A (en) 1972-05-17
DE1929116B1 (en) 1972-03-09
JPS495090B1 (en) 1974-02-05
NL6908750A (en) 1969-12-12

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Legal Events

Date Code Title Description
NL80 Abbreviated name of patent owner mentioned of already nullified patent

Owner name: HITACHI

V4 Lapsed because of reaching the maxim lifetime of a patent