Sand blasting machine is a kind of equipment commonly used in surface treatment, through the high-speed jet abrasive will be the surface of the workpiece dirt, rust and coatings and other impurities to remove, in order to increase the roughness of the surface of the workpiece and adhesion. However, in the process of using the sand blasting machine, often encounter some faults, these faults if not dealt with in time, will affect the sand blasting effect and equipment life. In this paper, we will discuss the common failures and treatment methods in two aspects.
1. sand blasting machine common faults
(1) poor sandblasting effect
Poor sandblasting effect is one of the common faults of the sandblasting machine. It is manifested in the abrasive jet strength is not enough, the cleaning effect is not complete, may be the nozzle clogging or abrasive outlet pressure is too low.
(2) Excessive noise
It is normal for the sand blasting machine to generate noise when working, but if the noise is too loud, it may be caused by the wear and tear of the equipment, loose parts or motor failure.
(3) Sand leakage phenomenon
Sand leakage refers to the leakage of abrasive from the body or nozzle gap during sand blasting. Sand leakage often occurs when the body is damaged due to poor sealing or when the nozzle is in serious wear condition.
(4) Sand blasting machine stoppage
Sudden stoppage of the sand blasting machine during operation is a common fault, which may be due to power supply failure, controller failure, or automatic shutdown protection caused by high pressure.
2. Treatment of the above faults
(1) Treatment of poor sand blasting effect
If the effect of sand blasting is not good, the first thing to do is to check whether the nozzle is clogged or not. If clogging is found, the nozzle can be removed and cleaned with cleaning agent or high pressure gas. At the same time, it is also necessary to check whether the setting of the pressure regulating valve is reasonable to ensure that the pressure of the abrasive outlet is moderate.
(2) Treatment of excessive noise
For the case of excessive noise, the equipment needs to be carefully inspected and maintained. First of all, check whether the equipment wear and tear, and timely replacement of worn parts; secondly, check whether the parts of the equipment is loose, if there is a loose phenomenon, should be fastened; finally, if the noise is still no significant improvement, may be the motor failure, this time you need to replace the motor.
(3) Sand leakage phenomenon of the treatment method
For the sand leakage phenomenon, you need to check the sealing of the body first. If there is damage or wear, the sealant can be used to repair or replace the body. If the sand leakage problem is caused by nozzle wear, the nozzle should be replaced or repaired in time.
(4) Handling of sand blasting machine downtime
When the sand blasting machine appears to stop, first need to check whether the power supply is normal. If the power supply is normal, you can check whether the controller of the sand blasting machine is working properly, and if it is faulty, it can be repaired or replaced. In addition, it is also necessary to check whether the pressure setting of the sand blasting machine is too high, if it is too high, the pressure should be reduced appropriately.
Summarize:
The above is an introduction to the common faults and treatment methods of sand blasting machines. When using the sand blasting machine, we should pay close attention to the working condition of the equipment, and find and deal with faults in time to ensure the normal operation and use of the sand blasting machine. At the same time, regular maintenance of the sand blasting machine can extend the life of the equipment and improve work efficiency.