FIELD: foundry. SUBSTANCE: mould is composed of upper half mould 1, tray 2 with insert 3. A portion of the insert protruding into the cavity of the upper half mould conforms the contours of casting at an angle to vertical walls of upper half mould 1 within a range of 1-6 degrees, the insert protruding portion height being equal to 0.05-0.2 of the casting diameter. EFFECT: prolonged service life of metal mould and improved conditions of withdrawing castings from the mould. 1 dwg
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