GB292937A - Method for increasing the yield point in hollow bodies from steel alloys, to which anincrease in the yield point cannot be imparted by heat treatment, particularly in hollow bodies from austenitic steel alloys - Google Patents

Method for increasing the yield point in hollow bodies from steel alloys, to which anincrease in the yield point cannot be imparted by heat treatment, particularly in hollow bodies from austenitic steel alloys

Info

Publication number
GB292937A
GB292937A GB16259/28A GB1625928A GB292937A GB 292937 A GB292937 A GB 292937A GB 16259/28 A GB16259/28 A GB 16259/28A GB 1625928 A GB1625928 A GB 1625928A GB 292937 A GB292937 A GB 292937A
Authority
GB
United Kingdom
Prior art keywords
yield point
steel alloys
hollow bodies
heat treatment
anincrease
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
GB16259/28A
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.)
Krupp Stahl AG
Fried Krupp AG
Original Assignee
Krupp Stahl AG
Fried Krupp AG
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 Krupp Stahl AG, Fried Krupp AG filed Critical Krupp Stahl AG
Publication of GB292937A publication Critical patent/GB292937A/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
    • C21D7/00—Modifying the physical properties of iron or steel by deformation
    • C21D7/02—Modifying the physical properties of iron or steel by deformation by cold working
    • C21D7/10—Modifying the physical properties of iron or steel by deformation by cold working of the whole cross-section, e.g. of concrete reinforcing bars
    • C21D7/12—Modifying the physical properties of iron or steel by deformation by cold working of the whole cross-section, e.g. of concrete reinforcing bars by expanding tubular bodies

Abstract

292,937. K.rupp Akt.-Ges., F. June 23, 1927, [Convention date]. Drawings to Specification. Hoops and rings.-In the manufacture of an article such as a protection cap for the windings of a turbo rotor, steel alloys, whose yield point cannot be increased by heat treatment, e.g. an austenitic nickel-manganese steel, are hot worked by rolling, forging, &c. to hollow form and machined to form an over-sized body which is then expanded, as by a mandrel, to induce a stress in excess of the original yield point. The body is finally machined. Specification 154,555, [Class 83 (iv), Metals, Working], is referred to.
GB16259/28A 1927-06-23 1928-06-05 Method for increasing the yield point in hollow bodies from steel alloys, to which anincrease in the yield point cannot be imparted by heat treatment, particularly in hollow bodies from austenitic steel alloys Expired GB292937A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE292937X 1927-06-23

Publications (1)

Publication Number Publication Date
GB292937A true GB292937A (en) 1928-11-01

Family

ID=6076241

Family Applications (1)

Application Number Title Priority Date Filing Date
GB16259/28A Expired GB292937A (en) 1927-06-23 1928-06-05 Method for increasing the yield point in hollow bodies from steel alloys, to which anincrease in the yield point cannot be imparted by heat treatment, particularly in hollow bodies from austenitic steel alloys

Country Status (1)

Country Link
GB (1) GB292937A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1171941B (en) * 1956-08-09 1964-06-11 Flexonics Corp Method and device for work hardening circular cylindrical tubes made of a metal that hardens during cold stretching, in particular made of stainless steel
DE1285489B (en) * 1957-08-16 1968-12-19 Avesta Jernverks Ab Process for the production of steel pressure vessels consisting of parts welded together
EP0040520A2 (en) * 1980-05-20 1981-11-25 ASSOCIATED ENGINEERING ITALY S.p.A. Shaping pistons

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1171941B (en) * 1956-08-09 1964-06-11 Flexonics Corp Method and device for work hardening circular cylindrical tubes made of a metal that hardens during cold stretching, in particular made of stainless steel
DE1285489B (en) * 1957-08-16 1968-12-19 Avesta Jernverks Ab Process for the production of steel pressure vessels consisting of parts welded together
EP0040520A2 (en) * 1980-05-20 1981-11-25 ASSOCIATED ENGINEERING ITALY S.p.A. Shaping pistons
EP0040520A3 (en) * 1980-05-20 1983-09-21 Associated Engineering Italy S.P.A. Shaping pistons
US4515003A (en) * 1980-05-20 1985-05-07 Associated Engineering Italy S.P.A. Piston shaping

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