GB809769A - Method of producing flints for pyrophoric igniters - Google Patents

Method of producing flints for pyrophoric igniters

Info

Publication number
GB809769A
GB809769A GB38885/57A GB3888557A GB809769A GB 809769 A GB809769 A GB 809769A GB 38885/57 A GB38885/57 A GB 38885/57A GB 3888557 A GB3888557 A GB 3888557A GB 809769 A GB809769 A GB 809769A
Authority
GB
United Kingdom
Prior art keywords
flints
producing
alloy
per cent
pyrophoric
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
GB38885/57A
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.)
Evonik Operations GmbH
Original Assignee
TH Goldschmidt 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 TH Goldschmidt AG filed Critical TH Goldschmidt AG
Publication of GB809769A publication Critical patent/GB809769A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C28/00—Alloys based on a metal not provided for in groups C22C5/00 - C22C27/00
    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06C—DETONATING OR PRIMING DEVICES; FUSES; CHEMICAL LIGHTERS; PYROPHORIC COMPOSITIONS
    • C06C15/00—Pyrophoric compositions; Flints

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Of Metal (AREA)
  • Contacts (AREA)

Abstract

Flints produced by extrusion are made of a cerium mischmetal-zinc alloy having the following composition in percentages by weight: Zn 5-25, cerium mischmetal the balance. The alloy may also contain Cu, Cd, Sb, Bi and Mn in a total quantity of 0.5 to 8 per cent and from 0.5 to 5 per cent of Mg. The molten alloy is poured at between 100 DEG C. and 500 DEG C. into a chilled mould and, after cooling, the billets are extruded at 380 DEG C. to 400 DEG C. using a pressure of 4100 to 4800 kg/cm2.
GB38885/57A 1957-02-08 1957-12-13 Method of producing flints for pyrophoric igniters Expired GB809769A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE809769X 1957-02-08

Publications (1)

Publication Number Publication Date
GB809769A true GB809769A (en) 1959-03-04

Family

ID=6723403

Family Applications (1)

Application Number Title Priority Date Filing Date
GB38885/57A Expired GB809769A (en) 1957-02-08 1957-12-13 Method of producing flints for pyrophoric igniters

Country Status (2)

Country Link
US (1) US2978322A (en)
GB (1) GB809769A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3264093A (en) * 1963-06-24 1966-08-02 Grace W R & Co Method for the production of alloys

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191015507A (en) * 1909-02-05 1910-10-27 Hans Beck Improvements in or relating to Pyrophoric Metal Alloys.
GB191203350A (en) * 1911-03-28 1912-11-14 Elektrochemische Werke Gmbh Pyrophorous Metal Alloys.
US1102575A (en) * 1912-03-27 1914-07-07 Electrochemische Werke G M B H Pyrophoric alloy.
US1118138A (en) * 1913-04-26 1914-11-24 Bridgman Smith H Pyrophoric alloy.

Also Published As

Publication number Publication date
US2978322A (en) 1961-04-04

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