also available in <link http: www.foundry-planet.com _top external-link-new-window>
Effectively avoid penetration
New impregnation coating SILICO® IM 801 from the can
Hilden, July 2010 - Minimal effort, great effect – in line with this idea, Ashland- Südchemie-Kernfest is offering a high-refractory zirconium impregnation coating from the can for selective pre-treatment of cores and molds.
 Picture 1: Selective application of impregnation coating SILICO IM 801 from the can |
|---|
For use on highly thermally or mechanically stressed locations of cores of all casting materials or for poorly compacted sand particles in molds, the use of SILICO® IM 801 (in a can) guarantees a smooth, casting surface free of metal penetration. The spray process ensures a selective and clean application that guarantees efficient deployment of the coating (picture 1).
SILICO® IM 801 can also be used efficiently for poorly compressed sand components in moulds. The solid-rich, highly refractory alcohol-based coating with strong impregnation permeates deep into the substrate of the mould material. In this way, binder bridges are covered and porous spaces in the first three to five grain layers filled. Penetration is reduced and an enormous improvement in the casting surface achieved. Cleaning and grinding work per cast part can be reduced significantly through pre-treatment of the affected areas. (picture 2).
 | Picture 2: The right choice is crucial Coatings in core-making or moulding make up only around 1% of the overall costs of a cast part. Selecting or using the wrong coating can lead to an enormous cost factor in terms of cleaning costs or rejects, which can amount to 10-15% of casting costs. |
|---|
The pictures below show how impressive the difference is between using a conventional coating and the SILICO® IM 801 impregnation coating, which permeates and seals several millimeters into the material. This makes it impossible for metal to penetrate the material.These results were produced in the Ashland-Südchemie-Kernfest research and tech-nology center. By combining theoretical knowledge with practical experience, and by engaging in a dialog with the customer, the research team develops new products and applications which are as innovative as they are efficient. Both now and in the past, this provided reaction mechanisms in the coatings and information about reactions of the coatings with the moulding material or adjoining metal. Based on these findings, Ashland-Südchemie-Kernfest developed high-performance coatings which offer great benefits to foundries in terms of casting quality and further processing. They contribute to preparing the industry for the future.
<link http: www.foundry-planet.com _top external-link-new-window>Click here for more Information and Contact to Ashland-Südchemie-Kernfest GmbH in our Suppliers Profile
