Mechanical equipment defect sand hole treatment method

The invention belongs to the technical field of mechanical equipment defect sand hole treatment and particularly relates to a mechanical equipment defect sand hole treatment method. According to the mechanical equipment defect sand hole treatment method, a bolt hole is drilled in a defect sand hole position; a bolt is selected to be smeared with screw-thread seal glue to block a defect sand hole;and suppression verification is performed according to the equipment working pressure after the screw-thread seal glue is solidified. The mechanical equipment defect sand hole treatment method is usedon an electric main water-feeding pump of one nuclear power plant, and equipment runns normally after bolt hole drilling and smearing of screw-thread seal glue Loctite 5772 utilizing the bolt are performed on a machine seal cooling clamping sleeve, the running pressure is 0.8 MPa, and the temperature is about 100 DEG C; the defect sand hole inside a pump cover bolt hole is blocked by smearing theseal glue on the bolt dire