Plasma Alloy Bits Of Coal-Cutter ( P.A.B.C )
Adopting plasma cladding alloy technology developed by ourselves, according to analyze of worn bits, head of bit were clad certain thickness of wearing resistance alloy layer. This layer protected effectively hard alloy cutter, and improved the strength of bit head. This method prolongs greatly the service life of coal cutter bit. After large amounts of worksite test, bit consumption of million tons coal mining reduced apparently. The service life of bit processed with plasma beam cladding alloy technology.
Technology parameters
The thickness of plasma cladding alloy is 1mm, and thickness of melting and mixing part is 1mm. because the welding seam and hard alloy is not heated, bending strength of bit head improved 10%.
Strengthen between alloy layer and bit body is higher than cracking strength.
The Vickers hardness of alloy layer exceeded 600HV.
Surface of the alloy layer clad with plasma cladding technology is very smooth.