The inspection steps for defects in the degreasing section of the coating surface treatment are as follows:
(1) Check whether the process parameters of the liquid in each degreasing tank are within the range of the process regulations, and test the indicators of the degreasing liquid.
(2) Check the temperature and pressure of the degreasing liquid. If necessary, it can be manually tested with a thermometer to eliminate possible errors caused by the temperature measuring instrument.
(3) Check whether the operation of the operator complies with the process regulations.
(4) Check whether the material of the steel strip matches the degreasing agent.
(5) Check whether the water quality used for liquid preparation in the degreasing tank and the water quality in the rinsing tank meet the process requirements.
(6) Check the process, the nozzle pressure of each process, whether the nozzle is blocked and adjusted, and the water temperature of the washing tank.
(7) Check whether the records of the thermometer are accurate, and whether the functions of the thermocouple and the thermostat meet the requirements for use.
(8) Check whether the process conditions and equipment maintenance system are adhered to.
(9) Check whether the speed of the steel belt is normal and whether there is any change.
(10) Check the detection concentration of the liquid in the degreasing tank.
(11) Check whether the material of the steel strip has changed.
