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Thin-walled, contoured cores for the production of radiators and boiler elements require a high flowability of the moulding material. This special application uses the Thermoshock process (or alternatively the

Warm-Box process

). 

The main challenge lies in the stable modelling of the air ducts in the core. The Thermoshock process achieves this by using a very high viscosity furfuryl-alcohol modified urea resin. In order to meet the somewhat mutually exclusive requirements of the process (high flowability on the one hand, high viscosity on the other), various additives are mixed with the moulding sand. Cores are cured lying on core shells in continuous furnaces.

The benefits at a glance

•   Good green strength and plasticity of the moulding material allow the consistent reproduction of air ducts in the core
•    High bending strength
•    No lustrous carbon formation

Want to learn more about our Warm-Box solutions?
Your contact at HA for Warm-Box is always happy to help.

Thin-walled, contoured cores for the production of radiators and boiler elements require a high flowability of the moulding material. This special application uses the Thermoshock process (or alternatively the

Warm-Box process

). 

The main challenge lies in the stable modelling of the air ducts in the core. The Thermoshock process achieves this by using a very high viscosity furfuryl-alcohol modified urea resin. In order to meet the somewhat mutually exclusive requirements of the process (high flowability on the one hand, high viscosity on the other), various additives are mixed with the moulding sand. Cores are cured lying on core shells in continuous furnaces.

The benefits at a glance

•   Good green strength and plasticity of the moulding material allow the consistent reproduction of air ducts in the core
•    High bending strength
•    No lustrous carbon formation

Want to learn more about our Warm-Box solutions?
Your contact at HA for Warm-Box is always happy to help.