This system consists of two components namely Phenolic resin condensed alkaline conditions and gaseous carbon dioxide for curing. The binder system is already being used in a number of iron and steel foundries for the mass production of cores.There are also users in the light alloy castings.
With the recent devolepments of CarbophenŽ resin, the cores can be stored for weeks without affected by moisture absorption.
Advantages of the resin
- Easy shake out properties compared to Sodium silicate binders
- Resin does not contain nitrogen,sulphur or phosphorous
- No sucrubber is required.Only carbon dioxide liberated during core making
- No glossy carbon formed
- No finning tendencies
- Low BTX emissions
- Low odor
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