GB618689A - An improved method of and apparatus for casting flowable material into moulds - Google Patents

An improved method of and apparatus for casting flowable material into moulds

Info

Publication number
GB618689A
GB618689A GB2776946A GB2776946A GB618689A GB 618689 A GB618689 A GB 618689A GB 2776946 A GB2776946 A GB 2776946A GB 2776946 A GB2776946 A GB 2776946A GB 618689 A GB618689 A GB 618689A
Authority
GB
United Kingdom
Prior art keywords
mould
gate
fluid
casting
plunger
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
GB2776946A
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.)
Lester Engineering Co
Original Assignee
Lester Engineering Co
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 Lester Engineering Co filed Critical Lester Engineering Co
Priority to GB2776946A priority Critical patent/GB618689A/en
Publication of GB618689A publication Critical patent/GB618689A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould

Abstract

618,689. Casting-machines. ARNOLD, C. (Lester Engineering Co.). Sept. 16, 1946, No.. 27769. [Class 83 (i)] After making a piston or other article by forcing magnesium, aluminium, zinc or other fluid or plastic material from a pressurechamber through a gate and into a mould, an additional amount of the material is forced into the mould during the cooling of the said article by contracting the length of, or applying pressure to metal in, the gate. A charge of fluid or plastic material is placed in a chamber 11 and forced by a plunger 10 into the cavity 24 of a water-cooled mould 3 with a cooled core 25. When the mould is full the material begins to solidify and the pressure therein rises and becomes sufficient to force back a plunger 33 against the resistance to the discharge of fluid in the cylinder 36 through an adjustable relief valve FC. This causes a shortening of the gate part 34 to supply material to the mould to make up for shrinkage. A suitable alloy is one containing 90 per cent of magnesium, 9 of aluminium, and 1 of zinc, which, when cast by the improved process, has a greater density and tensile strength than when cast by the ordinary die-casting process. The part of the gate subject to the greatest wear is formed as a replaceable insert 32.
GB2776946A 1946-09-16 1946-09-16 An improved method of and apparatus for casting flowable material into moulds Expired GB618689A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2776946A GB618689A (en) 1946-09-16 1946-09-16 An improved method of and apparatus for casting flowable material into moulds

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2776946A GB618689A (en) 1946-09-16 1946-09-16 An improved method of and apparatus for casting flowable material into moulds

Publications (1)

Publication Number Publication Date
GB618689A true GB618689A (en) 1949-02-25

Family

ID=10264979

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2776946A Expired GB618689A (en) 1946-09-16 1946-09-16 An improved method of and apparatus for casting flowable material into moulds

Country Status (1)

Country Link
GB (1) GB618689A (en)

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