FIELD: process engineering.
SUBSTANCE: invention relates to foundry. Pattern block consisting of collector with gate runners-rays is placed in specially shaped moulding box-container 1. Lower parts of gasifiable patterns with ball-type feeders are placed in collet holes of said gate runners. Precast chain links are placed on sand layer. Each link accommodates two lower parts of patterns. Sand is backfilled and the next layer of precast chain links are laid at an angle. Lower parts of patterns are closed by top parts. Specially shaped moulding box-container is filled with sand, sealed and melt is poured therein. Chains varying in section and pitch can be assembled on collector. Ball-type feeder formed to the link diametral axis allows locating each pattern at whatever angle in radial and horizontal plane.
EFFECT: minor rejections, expanded performances and higher efficiency.
2 cl, 7 dwg
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