Zhuzhou Up Cemented Carbide Co.,Ltd

tungsten carbide composite rod size and grade:                                                                                

there are eight grades according the size of tungsten carbide scrap.

E. overlaying process of tungsten carbide composite rod,

The oxyacetylene butt, the operating process is as follows:
(1) clean up the workpiece, make the welding workpieces surface with metallic luster.
(2) the flat position of welding, therefore can use the appropriate clamping fixture for control of surfacing layer
thickness, thick piece of available.
(3) with a neutral flame preheating, flame core not contact surface, the distance to 25 mm is advisable.
(4) carbide surfacing welding layer.With YD type electrode surfacing, the use of neutral flame (can be slightly 
carbonizing flame) tip is steady on the workpiece surface movement, the flame of the alloy electrode heating 
(be careful not to make flame cone tip contact alloy particles), tire body in the electrode alloy melt, carbide 
particles are also falling.Before the tire body of molten metal solidification, the particles arrange, can use left 
hand of the alloy electrode fingers, or another person holding a base electrode or pull rod on graphite rod 
in a quick stir particles, making them evenly aligned neatly.Surfacing layer thickness control according to 
the requirements of design.
(5) after the workpiece welding, where no ventilation, slow cooling, cannot quench, conditional usable 
asbestos blanket cover.
(6) the workpiece after cooling to room temperature, if necessary, grinding surface surfacing to required
size and shape.
(7) clean up the workpiece, remove all splash, slag, etc.