Thermally-insulating risers for use in moulding boxes - using thin refractory shell covered by layer of paper or cellulose fibres moulded onto shell
DE3006641A1
Insulated feeder head for mfg. dense casings in foundry moulds - uses shell sand tube surrounded by cellulose fibres, and employed esp. in mfg. steel castings
DE3001724A1
Casting mould - has releasable sprayed coating on timber mould which separates from it with sand mass consolidated under vacuum
DE2950527A1
Blind riser for foundry moulds - with outer sheath made of foamed polymer, which burns during casting and thus provides thermal insulation surrounding metal in riser
DE2928166A1
Blind hollow riser for foundry sand mould - has double wall forming ring gap entered by molten metal to retard cooling of metal inside riser
DE2917520A1
Blind riser for feeding metal castings in foundry moulds - where riser contains air vent cores located at different heights to aid feeding
DE2907301A1
Blind riser for foundry sand moulds - where top of riser contains several cores permeable to gas, so ambient air can exert pressure on molten metal in riser
DE2758993A1
Foundry moulds made using sand contg. no binder - where vacuum holds sand round lost pattern made of foamed plastic
DE2752037A1
Shell moulds prodn. from heated thermoplastic particles - which are sprayed onto a pattern and then cooled to obtain the shell
DE2616040A1
Carbon fibre mat reinforcement for a metal casting - is supported within the foamed plastic form that initially fills the mould
DE2506648A1
Pouring funnel for insertion in sand moulds - used for casting metals, where the funnel stem contains a slag trap
DE2428885A1
Blind riser shells for use in making sand moulds - provided with top exit hole for escape of gas and air during casting
DE2401508A1
Insulated feeder head for casting metals - using cardboard moulding with annular cavity filled with insulating refractory
DE2309016A1
Feeder insert in casting mould - defines surrounding cavity which becomes filled with melt during pouring
