Cooling materials
for directional solidification

The foundryman knows out of sorrowful experience the important meaning of the solidification rate. The solidification rate influences not only the quantity of the feeding metal ofthe special part of the casting, but also the structure of the different kinds of cast irons and different kinds of graphite (form, size and distribution). with regar to the feeding it is generell, that with an increasing of the crystallisation rate the negative shrinkagepressure decreases and the quantity of the feeding metal rise. In contrast with this, with an decreasing of the crystallisation rate the porosity increase. In this case you also have to pay attention to the sensitivity of feeding for the different alloys.

Not always, above all with complicate constructions, it is possible to fulfill the conditions for a directional solidification by feeding. Since a long time it is a standard for the casting technique to use chills for cooling processes or to cast in cooling elements for a directional solidification.

The aim of this directional heat flow is:

• the production of an artifical end zone,
• the cooling of thermal centres, thickenings or other material accumulation to get a better module,
• the oppression or shifting of segregate zones,
• the avoiding of cracks.

Specificly for these field of applications we straigthen our delivery program. It consists of the following products:

• Ceramic SiC-Cooling-Plates (SiC-Chills)
  
  These chills can be used very easy and safe without any moulding technical expense. They are proven for more than 30 years worldwide in the foundry industrie.
  
  
• Ceramic SiC-Cooling-Mass KERAMFORM F3
  
  This mouldable cooling-mass was especially developed for castings with complicated constructions and is the perfect addition to the ceramic SiC-Chills.
  
  
• Graphite-Chills
  
  Because of the increasing of inquiries concerning cooling materials with an extreme cooling effect, meanwihile Graphie-Chills are a necessary completion to our cooling materials on SiC-Base.

You will find more detailed information in the subindex. A complete delivery program can be downloaded under the point Download-Productinfo. We also have the possibility to send you all catalogues by standard mail. Please be kind and give us a short info for this.