Bead inside bore of bearing, the large surface is divided into several small ones, the number of flaws are decreased and the bond strength of spraying layer and substrate is strengthened.

• 对轴承座内孔进行堆焊 ,将大表面分割成小表面 ,减少了喷涂层收缩时形成的裂纹 ,提高了喷涂层与基体的结合强度。