Problems encountered during the use of electrostatic spraying equipment and solutions

Problems encountered during the use of electrostatic spraying equipment and solutions

【China Aluminum Industry Net】1. The use of electrostatic spraying equipment is not good for every time the power is turned on. Continuous work for more than half an hour is just fine.

Reason: Accumulation of agglomerate powder in the spray gun causes leakage of the spray gun after the dampening without powdering. After a prolonged period of heat and flooding, the leakage phenomenon is reduced, and the spray gun powdering capacity is increased.

Advice: Clean the powder inside and outside the spray gun and clean it each time the machine shuts down to avoid accumulation of powder.

2. The working indicator does not light during the process of using electrostatic spraying equipment

Cause: The cable connector of the spray gun is not good, the stroke of the gun is too short, and the switch inside the gun cannot be pulled.

Suggestion: Check gun cable, adjust trigger top screw

3, the use of electrostatic spraying equipment during the power indicator is not lit

Cause: Out of power socket, poor contact between power cord and socket, power fuse blown (0.5A)

Suggestion: Check Power Supply and Check Replace 0.5A Power Insurance

4, using electrostatic spraying equipment in the process of no powder or a breather has been out of powder

Reason: There is water in the high pressure air, and the working environment temperature is too low, the solenoid valve core is frozen, the characteristics of the host work indicator display is normal, the solenoid valve does not move (new discovery).

Recommendation: Use a hair dryer to heat the solenoid valve and solve moisture and temperature problems.

5. Too much powder during the process of using electrostatic spraying equipment

Cause: Gun pressure too high, or low fluidization air pressure

Recommendation: Adjust the air pressure appropriately

6, when using the electrostatic spraying equipment in the process of powder out of time

Reason: The fluidization of the powder is not normal, generally the fluidization gas pressure is too low, and the powder is not fluidized

Advice: Adjust Fluidization Pressure

7, spray guns during the use of electrostatic spraying equipment

Cause: Bad grounding of the entire system (main unit, workpiece)

Suggestion: The system ground wire must be well grounded

8, the use of electrostatic spraying equipment during the human body charge

Cause: The ground wire of the spray gun is not well grounded, and the electrostatic charge absorbed by the human body cannot be discharged in time and accumulated.

Recommendation: Check the gun grip ground wire

9, the use of electrostatic spraying equipment in the process of pinhole

The output voltage is too high or too close to the workpiece to break through the powder coating

10, the use of electrostatic spraying equipment in the process of shrinkage

The surface of the workpiece has oil and dust, which will form shrinkage holes after curing, especially at the crevices

Mixing powders of different ingredients may cause unexpected situations

11. Bubbles in the process of using electrostatic spraying equipment

Surface water, oil, etc.

12, the use of electrostatic spraying equipment coating process is not enough power

a. The pre-treatment is not clean, the workpiece surface has rust, water, oil, dust, dust

b, the oxide film of the workpiece is not removed

c, the workpiece baking temperature is not high enough or the holding time is not enough, pay attention to the difference between the oven display temperature and the actual temperature of the workpiece.

13. Excessive trigger resistance during electrostatic spraying equipment

Cause: The trigger top screw is not adjusted properly and the trigger reset spring is too hard

Tip: Adjust the trigger top screw and adjust the trigger return spring

14. Spray gun trigger does not reset during electrostatic spraying equipment

Cause: Gun powder enters the grip and hinders the trigger movement

Recommendation: Decompose and clean the spray gun (with high pressure air)

15, the use of electrostatic spraying equipment in the process of drawing the corners of the workpiece

Spray gun voltage is too high, the electrostatic voltage electrostatic spray is not the higher the better

16. When spraying large-area flat workpieces during the process of using electrostatic spraying equipment, the coating thickness is not uniform (some places are too thick)

Reason: The main reason is that the electrostatic field strength of the gun output is not enough, and the thickness of the powder layer cannot be effectively limited automatically, resulting in excessive powder accumulation.

Recommendation: Increase the gun's output voltage (the gun must have high-pressure spark suppression capabilities), or replace a qualified electrostatic gun.

High Velocity Powder-Actuated Tool is used for normal concrete not harder than C40. The nail initial velocity is very high as there is no piston but high pressure gas to push it.

Powder-actuated tools come in high-velocity and low-velocity types. In high-velocity tools, the propellant charge acts directly on the fastener in a process similar to a firearm. ... Powder-actuated Fasteners are made of special heat-treated steel. Common nails are not used for powder-actuated fastenings.

High Velocity Powder-Actuated Tool

YIBIN CITY NANXI DISTRICT QIANGXIN PLASTIC CO.,LTD. , https://www.homsetfastening.com

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