Si3N4 Silicon Nitride Ceramic Guide Roll For HF Tube And Pipe Welding

The electric resistance welding (ERW) is used to fabricate steel pipes and tubes. Silicon Nitride Ceramic is typically used to make welding guide rolls for the high frequency ERW in continuous steel tube & aluminium tube production. Si3N4 is an excellent material solution in this application due to its following advantages:

• high thermal shock resistance and temperature resistance
• high copressive strength and toughness
• much longer service life than steel
• significantly fewer signs of wear
• higher energy efficiency
• improved precision
• extreme hardness