Carbon and Graphite Rigid Insulation
Coidan Graphite Products offer both Carbon and Graphite insulation either in a rigidised form or as a flexible insulation felt. Carbon and Graphite insulation materials have excellent thermal properties resulting in improved hot zone temperature uniformity and low thermal mass mainly used as vacuum furnace insulation. The thermal processes and lifetime of the vacuum furnace may be further improved by the application of coatings or covering materials such as foil or CFC facing also available from Coidan Graphite Products.
Rigitherm CF is based upon high purity Rayon and PAN fibres carbonized mixed with proprietary resins and vacuum formed into insulation boards, blocks and cylinders.
Rigitherm RF is available as a short fibre and long fibre product has excellent machining properties and excellent resistance to fast quench rates. Tight process control results in a homogeneous insulation board with excellent thermal properties resulting in stable hot zone temperature uniformity and efficient furnace control.
Graphite furnace insulation board generally comes in two distinct forms
The standard finish for the boards is generally foil faced both sides – we find this gives greater temperature uniformity and longer life and lower dust levels within the furnace
High purity boards are also available upon request.
Insulation cylinders can either be made as a a solid vacuum formed cylinder or as a series of barrel staves bonded together
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Coidan Graphite Products Ltd, Kirk Hammerton, York. YO26 8DQ | 01423 330492 | | www.coidan.com