YZ4 gas tungsten carbide rods cast 
 YZ5 gas tungsten carbide rod casting 
 YZ6 gas tungsten carbide rods cast 
 Cast tungsten carbide wear-resistant tungsten carbide gas welding rod is cast as the hard phase, high-quality low-carbon steel is bonded to the metal electrode alloys, the main oxygen - acetylene welding, the use of microstrip carbon neutral flame or flame. Welding temperature control in the 1600-1700 ℃ silk around the workpiece by welding to the local heating 850-950 ℃, Zaishi welding, oxygen pressure 0.2-0.6MPa. Acetylene pressure 0.02-0.1MPa. To get good surfacing layer to Note that the correct welding temperature control, adjusting the flame composition. 
 For oil drilling, engineering machinery, mixer blades, grinder blade, (sugar roll, sugar cane knife) and so on. 
 Mm tube length mm diameter models hardness size (mesh) 
 YZ4 4.0 400 HRC ≥ 85 60 ~ 80 
 YZ5 5.0 400 HRC ≥ 85 40 ~ 60 
 YZ6 6.0 400 HRC ≥ 85 30 ~ 40