Generally can be divided into macroscopic bearing steel repair method

According to all kinds of bearing steel repair method can generally be divided into two major categories of macroscopic defects and microscopic defects. Strict control of the technical indicators and reduce as far as possible, is the main content of all kinds of bearing steel technical requirements. These are the common defects of steel. 1, micro defects: the micro defects of steel including under optical microscope amplification overhaul can find all kinds of non-metallic inclusions in steel, carbon segregation, carbide network and ribbon and annealing organization is not an average. All kinds of special scale miniature bearing steel to control these defects are strictly defined. 2, macroscopic defects: visual inspection can be found including pitting, crack, folding, cracking, scratch, scar and slag, and low power pickling inspection can be found that the shrinkage cavity and subcutaneous bubble, white spots, burnt, central loose, loose and segregation and surface decarburization, etc. These are all affect the purity of steel and the uniformity of the main defects.