GB357040A - Improvements in or relating to the manufacture of pistons - Google Patents

Improvements in or relating to the manufacture of pistons

Info

Publication number
GB357040A
GB357040A GB82431A GB82431A GB357040A GB 357040 A GB357040 A GB 357040A GB 82431 A GB82431 A GB 82431A GB 82431 A GB82431 A GB 82431A GB 357040 A GB357040 A GB 357040A
Authority
GB
United Kingdom
Prior art keywords
mould
lowered
ring
sand core
metal
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
GB82431A
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.)
ARTHUR MACNIVEN BROWN
Original Assignee
ARTHUR MACNIVEN BROWN
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 ARTHUR MACNIVEN BROWN filed Critical ARTHUR MACNIVEN BROWN
Priority to GB82431A priority Critical patent/GB357040A/en
Publication of GB357040A publication Critical patent/GB357040A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D15/00—Casting using a mould or core of which a part significant to the process is of high thermal conductivity, e.g. chill casting; Moulds or accessories specially adapted therefor
    • B22D15/02—Casting using a mould or core of which a part significant to the process is of high thermal conductivity, e.g. chill casting; Moulds or accessories specially adapted therefor of cylinders, pistons, bearing shells or like thin-walled objects

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)

Abstract

357,040. Moulds and cores. BROWN, A. M., 98, Fordwych Road, Brondesbury, London. Jan. 9, 1931, No. 824. [Class 83 (i).] Casting processes.-A hollow piston is cast with the head downwards, the sand core being inserted into a socket in a metal centring ring, and then lowered into position until the ring rests on the top of the mould. A mould comprises a main portion A, longitudinally divided, and aligned by dowel pins R in lugs T, and is formed at the ends O, P, to fit within recesses in end members L, B, or in extension rings M, Q, similarly formed. Vent holes H in the base member B are filled with strands of wire. The piston is preferably formed with six longitudinal webs, W, and gudgeon-pin holes are formed by removable pins E. The sand core S is carried in a recess F in the top ring L while it is lowered into the mould, the metal being then introduced at J and rising, when the mould is full, at K. The upper, centre, and lower portions of the mould are preferably maintained at 400 to 450‹ C., 300 to 350‹ C., and 50 to 100‹ C. respectively, and molten aluminium or aluminium alloy may be introduced at a temperature of 650 to 670‹ C.
GB82431A 1931-01-09 1931-01-09 Improvements in or relating to the manufacture of pistons Expired GB357040A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB82431A GB357040A (en) 1931-01-09 1931-01-09 Improvements in or relating to the manufacture of pistons

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB82431A GB357040A (en) 1931-01-09 1931-01-09 Improvements in or relating to the manufacture of pistons

Publications (1)

Publication Number Publication Date
GB357040A true GB357040A (en) 1931-09-17

Family

ID=9711111

Family Applications (1)

Application Number Title Priority Date Filing Date
GB82431A Expired GB357040A (en) 1931-01-09 1931-01-09 Improvements in or relating to the manufacture of pistons

Country Status (1)

Country Link
GB (1) GB357040A (en)

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