The composites with interpenetrating networks have good structure homogeneous and performance; also their mechanics, calorifics and tribology arc excellent.
It has properties of hardening after malleablization,arc welding and impact resistance.It can grind but can not machining demagnitized steel-bonded carbide.
The procedure and characteristic of the arc discharge,feature of ignitron,firing way,structure features and its application are described in the paper.
The relationship between basicity of graphitiferous slag and microstructurcs of both slag and weld metal arc investigated for the same electrode with cast iron.