Binder solutions for metal casting

Description:
We are searching for innovative binder solutions for the manufacture of molds and cores used in the production of metal castings. In particular, binders with the following qualities:

• Either a controllable self-setting system, where work-time could be varied by the use of different grades of hardener, or different addition levels of hardener OR a system which could achieve almost instantaneous cure through the application of a low hazard gaseous hardener / catalyst (e.g. CO2)
• Low toxicity / low hazard material in terms of labelling and occupational exposure limits, and with zero or very low levels of free formaldehyde
• High strength development at low (<5%) addition levels
• Chemical curing reaction, NOT a dehydration process. The curing mechanism should not be dependent on an external heat source and should take place under ambient conditions
• Low cost, high volume product. Market volumes are measured in thousands of tonnes, but cost to the manufacturer (our client) would need to be <€2000 per tonne given volume production
• No deterioration in strength on ambient storage for several days, and preferably an increase in strength
• No adverse chemical reaction between the aggregate / binder and the metal during casting process


Technology #637