GB173746A - Improvements relating to the heat treatment of castings of aluminium alloys - Google Patents

Improvements relating to the heat treatment of castings of aluminium alloys

Info

Publication number
GB173746A
GB173746A GB33656/21A GB3365621A GB173746A GB 173746 A GB173746 A GB 173746A GB 33656/21 A GB33656/21 A GB 33656/21A GB 3365621 A GB3365621 A GB 3365621A GB 173746 A GB173746 A GB 173746A
Authority
GB
United Kingdom
Prior art keywords
alloys
aluminium
iron
treatment
copper
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
GB33656/21A
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
Publication of GB173746A publication Critical patent/GB173746A/en
Expired legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
    • C22F1/057—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with copper as the next major constituent

Landscapes

  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mold Materials And Core Materials (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)

Abstract

173,746. Archer, R. S., and Jeffries, Z. Jan. 4, 1921, [Convention date]. Alloys.-Castings of aluminium alloys containing from 2 to 5 per cent of copper are improved by heat-treatment. The treatment is applicable also to aluminium-copper alloys containing silicon either in the small amounts occurring as impurities in commercial aluminium or in subtantial amounts, e.g. 3 to 15 per cent. In order to avoid as far as possible the formation of crystalling needles of FeAl, due to the presence of iron in commercial aluminium silicon is added where necessary to ensure an excess of silicon some of which combines with the iron thereby reducing the quantity of FeAl3 formed. Zinc and/or magnesium may also be added to the alloys to be treated. In the preparation of the alloys the temperature is kept as low as possible, preferably below 750‹ C. The Specification as open to inspection under Sect. 91 (3) (a) describes also the treatment of aluminium alloys containing silicon without copper and states that alkali metals may be added to the alloys. This subject-matter does not appear in the Specification as accepted. Reference has been directed by the Comptroller to Specification 19282/05 and 159,852 [both in Class 72, Iron, &c.]
GB33656/21A 1921-01-04 1921-12-14 Improvements relating to the heat treatment of castings of aluminium alloys Expired GB173746A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US173746XA 1921-01-04 1921-01-04

Publications (1)

Publication Number Publication Date
GB173746A true GB173746A (en) 1923-06-14

Family

ID=21782222

Family Applications (1)

Application Number Title Priority Date Filing Date
GB33656/21A Expired GB173746A (en) 1921-01-04 1921-12-14 Improvements relating to the heat treatment of castings of aluminium alloys

Country Status (1)

Country Link
GB (1) GB173746A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1160195B (en) * 1960-12-29 1963-12-27 Karl Schmidt Metallschmelzwerk Use of a cast aluminum alloy for V-belt pulleys
DE1167539B (en) * 1957-10-07 1964-04-09 Karl Schmidt Metallschmelzwerk Cold aging cast aluminum alloy
DE1170654B (en) * 1957-12-16 1964-05-21 Metallwerk Olsberg G M B H Use of an aluminum alloy for the production of self-hardening die castings
DE1271408B (en) * 1964-01-13 1968-06-27 Aluminium Lab Ltd Die-cast parts made from an aluminum alloy

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1167539B (en) * 1957-10-07 1964-04-09 Karl Schmidt Metallschmelzwerk Cold aging cast aluminum alloy
DE1170654B (en) * 1957-12-16 1964-05-21 Metallwerk Olsberg G M B H Use of an aluminum alloy for the production of self-hardening die castings
DE1160195B (en) * 1960-12-29 1963-12-27 Karl Schmidt Metallschmelzwerk Use of a cast aluminum alloy for V-belt pulleys
DE1271408B (en) * 1964-01-13 1968-06-27 Aluminium Lab Ltd Die-cast parts made from an aluminum alloy

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