Usually screwed on the use of each large mechanical device, the use of mechanical equipment also has the function of close contact, if sudden damage is obtained in use, and it can form severe damage to the device, making the device in the process The screw does not work properly, so the best maintenance and repair can be safer and used during the use of the screw manufacturer.
The following six problems need to be noted for the maintenance and repair of screws used by screw manufacturers:
1, screw rinsing skills, need to be very careful, the screw process will remain on the surface. This step is a silicate detergent that is rinsed off with water.
2, the screw is now heated together in the tempering, otherwise it will cause a slight, now quenching of the quenching oil.
3, the appearance of high-strength bolts will appear white residual phosphide, clear (first place), the operation is not carefully checked.
4, there will be some surface chemicals, black heat treatment, clear work is not complete, the appearance can not completely remove the alkali residue.
5. Under the condition that the cleaning of the standard parts will rust, the water will be replaced frequently.
6, showing the image of rust for more edible vegetable oil quenching oil used for too long, need to participate in new oil products or replacement.