In many applications, impurities commonly found in graphite need to be removed in order to prevent migration and or doping of the components being processes. Many of these applications require graphite products with total trace impurities of less than 5 parts per million (5 PPM). Electro Tech Machining’s purification equipment utilizes a thermo chemical and high temperatures to remove metallic impurities.
Electro Tech Machining performs purification of a wide range of materials including graphite, graphite composites, ceramics and refractory services materials. Using specially designed high temperature furnaces that can be operated under vacuum or near atmospherics pressure using an inert gas mixture these materials can be purified to exacting specifications.