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GB260026A - Improvements in or relating to the hardening of steel - Google Patents

Improvements in or relating to the hardening of steel

Info

Publication number
GB260026A
GB260026A GB1818325A GB1818325A GB260026A GB 260026 A GB260026 A GB 260026A GB 1818325 A GB1818325 A GB 1818325A GB 1818325 A GB1818325 A GB 1818325A GB 260026 A GB260026 A GB 260026A
Authority
GB
United Kingdom
Prior art keywords
articles
core
article
released
hardening
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
GB1818325A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB1818325A priority Critical patent/GB260026A/en
Publication of GB260026A publication Critical patent/GB260026A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D11/00—Process control or regulation for heat treatments

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Articles (AREA)

Abstract

260,026. Salerni, P. M. July 16, 1925. Hardening. -In a process for hardening steel articles in which the articles are kept in position in the heating furnace by a magnetic field and released by loss of magnetic properties at or about the point of decalescence, the articles E are retained by a laminated core B surrounded by a solenoid A mounted in a casing a provided with an inlet a<2> and an outlet a<3> for cooling liquid. The end of the core B passes through the fireclay roof c of a furnace C having a quartz tube D surrounded by a heating coil d and when the articles E are released they drop into a quenching bath F. In a modification, Fig. 2, the article E is supported by a pivoted tray G close to the core B, a part of the weight of the article being counterbalanced by a weight g<1> carried by an arm g<2> mounted on the pivot g of the tray. When the article is released by the core B it may be retained in the heating enclosure, before dropping into the quenching bath, for any predetermined period by an ordinary electric or other device. Reference has been directed by the Comptroller to Specifications 15809/05, 131,575, 150,486, and 205,037.
GB1818325A 1925-07-16 1925-07-16 Improvements in or relating to the hardening of steel Expired GB260026A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1818325A GB260026A (en) 1925-07-16 1925-07-16 Improvements in or relating to the hardening of steel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1818325A GB260026A (en) 1925-07-16 1925-07-16 Improvements in or relating to the hardening of steel

Publications (1)

Publication Number Publication Date
GB260026A true GB260026A (en) 1926-10-18

Family

ID=10108084

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1818325A Expired GB260026A (en) 1925-07-16 1925-07-16 Improvements in or relating to the hardening of steel

Country Status (1)

Country Link
GB (1) GB260026A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2415376A (en) * 1943-05-29 1947-02-04 Budd Co Electromagnetic means for feeding a ferromagnetic charge to a furnace
US2440476A (en) * 1944-11-04 1948-04-27 Allis Chalmers Mfg Co Electric heating system for a plurality of objects, responsive to temperature and position thereof
US2464727A (en) * 1944-06-07 1949-03-15 Sunbeam Corp High-frequency inductor heattreating apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2415376A (en) * 1943-05-29 1947-02-04 Budd Co Electromagnetic means for feeding a ferromagnetic charge to a furnace
US2464727A (en) * 1944-06-07 1949-03-15 Sunbeam Corp High-frequency inductor heattreating apparatus
US2440476A (en) * 1944-11-04 1948-04-27 Allis Chalmers Mfg Co Electric heating system for a plurality of objects, responsive to temperature and position thereof

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