Copper bars, aluminum bars, bus bars, bus bars, bus bar insulation powder, epoxy powder problems and solutions

Sources :wenhui  Date:2020-07-24 10:53

Copper bars, aluminum bars, bus bars, bus bars, bus bar insulation powder, epoxy powder problems and solutions

 

1. Usage of products

cnc hydraulic punching shearing machine

Thermal spraying method: the workpiece is preheated to 180~240C, the workpiece is transferred to the powder spraying room, the resin powder is sprayed onto the workpiece and reaches the specified thickness, and then the shield is peeled off, depending on the size of the workpiece and the temperature at the time. Curing.

Working temperature: As long as the busbar insulation epoxy resin is applied correctly, it should show satisfactory performance between -73 o C and 110 o C.

Two problems and solutions

1. Outgassing-bubbles and pores appear in the coating during curing

Air is trapped-change preheating and curing temperature

The parts are not clean-the parts must be thoroughly cleaned before assembly

The product is damaged due to moisture-tighten the container and use it in a dry environment

2. Viscosity is too low-the product can not stick parts

The parts are not clean-the parts must be thoroughly cleaned before assembly

No stickiness on the surface-replace materials

The product is not fully cured-check the curing temperature and/or oven accuracy; check the curing time

<img alt="busbar processing line" border=0" title="busbar processing line" data-original-height="1080" data-original-width="1920" src="https://1.bp.blogspot.com/-6LcIxKK6kZA/Xv2o_P0ZbzI/AAAAAAAAAJs/VCpUxqkCIx8ONY8lEV-EFNHrsFJUaEe0ACK4BGAsYHg/w781-h413/busbar%2Bprocessing%2Bequipment.jpg" width="781" />

3. Poor impact resistance-when impacted, the product shatters and falls off the parts

The parts are not clean-the parts must be thoroughly cleaned before assembly

The product is not fully cured-check the curing temperature and/or oven accuracy; check the curing time

4. Poor cut-through resistance-when the component is heated, the wire is indexed and cut through the coating to expose

The product is not fully cured-check the curing temperature and/or oven accuracy; check the curing time

5. Low chemical resistance-when encountering solvent, the soil layer dissolves or falls off

The product is not fully cured-check the curing temperature and/or oven accuracy; check the curing time

6. Coarse coating-the cured coating has perforations, which are extremely rough and orange-like

The product is contaminated-check the water and oil delivery pipes; tighten the container lid and stay away from wet points

The product storage temperature is too high-store the product at 24 degrees or lower

Insufficient mixing time-mix the product thoroughly

Product exposure time is too short-prolong exposure time; contains too much air-reduce air content; preheating temperature is too low-increase preheating temperature; few components, can not retain the required thermal power-increase preheating temperature, use a variety of method

7. Not stable enough-the coating thickness is too thin

The product storage temperature is too high-store the product at 24 degrees or lower

Insufficient mixing time-mix the product thoroughly

Product exposure time is too short-prolong exposure time; contains too much air-reduce air content; preheating temperature is too low-increase preheating temperature; few components, can not retain the required thermal power-increase preheating temperature, use a variety of method

Static voltage is too low-increase the voltage; the distance between the component and the applicator is too far-move the component closer; the coating time is too short-extend the coating time; the product is damp-the container is sealed and away from wet locations

六&emsp; Our suggestion

1. The storage temperature is preferably below 24 degrees

2. Keep away from fire and avoid direct sunlight, should be placed in a well-ventilated place

3. Do not expose the powder coating to the air at will after use, it should be covered or closed at any time to avoid mixing of debris

4. The best storage method is: low temperature and dry environment

5. The equipment used in painting operations must be in good ground to eliminate static electricity

6. Avoiding unauthorized discharge of the coating machine

7. In the powder spraying room, the concentration of floating dust should be controlled below the safe concentration as much as possible to avoid the risk of fire and explosion of the dust

8. Equipped with powder recycling equipment

9. Maintain air circulation in the working environment

10. The equipment is best grounded

11. Avoid long-term contact with the skin. The powder that adheres to the skin should be washed with soapy water. Do not use solvents

12. If you have powder on your eyes, immediately rinse them with clean water for at least 10 minutes and ask a doctor to check