Magnesia Overview
The UCM Group of companies produce Electrical grade Magnesium Oxide which is used worldwide by leading manufacturers of heating elements for a diverse range of products for both industrial and domestic applications. Magnesium oxide is also used for automotive applications in diesel engine glow plugs and in friction products.Magnesium oxide has exceptionally good electrical resistance whilst its ability to permit heat transfer makes it the preferred insulation material for sheathed heating elements. Electrical Grade MgO is available in different qualities appropriate for the final application of the element in which it is used. The operating temperature of the sheath of a heating element, is determined by the load and heat dissipating conditions. The mean temperature of the insulation depends on the thermal conductivity of the powder and the distance between sheath and coil. In normal elements it is not possible to alter the distance between coil and sheath, consequently the thermal conductivity and insulation resistance of the powder is of decisive importance for the insulation resistance.
The group produces a broad range of products with a view to providing customers with qualities that will satisfy their individual requirements. However since element design and production practices have a significant effect on the final properties of the element, the same results as described in this website cannot be guaranteed. Customers should therefore make their own tests to determine the individual product type most suited to a particular application. Suggested uses are based upon general applications by customers over a long period of time.