GB1361615A - Method of and apparatus for manufacturing lead-calcium alloys - Google Patents

Method of and apparatus for manufacturing lead-calcium alloys

Info

Publication number
GB1361615A
GB1361615A GB6174970A GB6174970A GB1361615A GB 1361615 A GB1361615 A GB 1361615A GB 6174970 A GB6174970 A GB 6174970A GB 6174970 A GB6174970 A GB 6174970A GB 1361615 A GB1361615 A GB 1361615A
Authority
GB
United Kingdom
Prior art keywords
calcium
hydride
melt
cup
lead
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
GB6174970A
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.)
ZF International UK Ltd
Original Assignee
Lucas Industries Ltd
Joseph Lucas Industries 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 Lucas Industries Ltd, Joseph Lucas Industries Ltd filed Critical Lucas Industries Ltd
Priority to GB6174970A priority Critical patent/GB1361615A/en
Priority to AU37105/71A priority patent/AU461706B2/en
Priority to FR7146780A priority patent/FR2120910A5/fr
Priority to DE19712164940 priority patent/DE2164940A1/en
Publication of GB1361615A publication Critical patent/GB1361615A/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
    • C22C1/00—Making non-ferrous alloys
    • C22C1/02—Making non-ferrous alloys by melting

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

1361615 Producing lead-calcium alloys JOSEPH LUCAS (INDUSTRIES) Ltd 10 Dec 1971 [30 Dec 1970] 61749/70 Heading C7D A lead-calcium alloy is produced by mixing molten lead in a non-oxidizing atmosphere with calcium hydride, the resulting mixture being maintained at such a temperature that the calcium hydride decomposes to provide metallic calcium which alloys with the molten lead. Preferably, the calcium hydride is submerged in the molten lead at temperatures over 600‹C while a mixture of hydrogen and nitrogen is passed over the surface of the melt. Hydrogen evolved by decomposition of the hydride is allowed to bubble through the melt to agitate the mixture. Apparatus A crucible 11 is provided with a cover 12 and an inverted perforated cup 13. A filling tube 16 extends through cover 12 and is received in an aperture in base 13a of cup 13. Inlet and outlet tubes 14 and 15 provide for passage of non- oxidizing gas over the surface of melt 18 in which is inserted a thermometer 19. Calcium hydride is introduced through tube 16 by means of plunger 17 and the size of the perforations of cup 13 is such that the hydride is retained within the cup and hence below the surface of the melt. Leadcalcium alloy product is withdrawn through spout 21.
GB6174970A 1970-12-30 1970-12-30 Method of and apparatus for manufacturing lead-calcium alloys Expired GB1361615A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB6174970A GB1361615A (en) 1970-12-30 1970-12-30 Method of and apparatus for manufacturing lead-calcium alloys
AU37105/71A AU461706B2 (en) 1970-12-30 1971-12-20 A method of, and apparatus for, manufacturing lead-calcium alloys
FR7146780A FR2120910A5 (en) 1970-12-30 1971-12-27
DE19712164940 DE2164940A1 (en) 1970-12-30 1971-12-28 Process and device for the production of lead-calcium alloys

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB6174970A GB1361615A (en) 1970-12-30 1970-12-30 Method of and apparatus for manufacturing lead-calcium alloys

Publications (1)

Publication Number Publication Date
GB1361615A true GB1361615A (en) 1974-07-30

Family

ID=10487404

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6174970A Expired GB1361615A (en) 1970-12-30 1970-12-30 Method of and apparatus for manufacturing lead-calcium alloys

Country Status (4)

Country Link
AU (1) AU461706B2 (en)
DE (1) DE2164940A1 (en)
FR (1) FR2120910A5 (en)
GB (1) GB1361615A (en)

Also Published As

Publication number Publication date
FR2120910A5 (en) 1972-08-18
AU3710571A (en) 1973-06-28
DE2164940A1 (en) 1972-07-20
AU461706B2 (en) 1975-06-05

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee