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  • 9401B无填料.jpg

9401B has no filler

Suitable for indoor insulation components of medium and high voltage electrical appliances. For example: dry-type transformers, transformers, insulators, supports, bushings, switches

Classification:

Details

purpose
Suitable for indoor insulation components of medium and high voltage electrical appliances. For example: dry-type transformers, transformers, insulators, supports, bushings, switches
characteristic
Extremely low viscosity, easy to defoaming, and strong permeability;
Excellent mechanical and electrical characteristics, low partial discharge;
Excellent heat dissipation and high cracking resistance;
Less sediment.
1、 Proportioning
9400A: 9400B=100:100
2、 Pre baking
A. Material B: 60 ℃ -65 ℃/4-5 hours
3、 Pre mixing and vacuum defoaming (for instantaneous static mixing process)
Vacuum stirring and deaeration of component A at 70-75 ℃/1-2 hours, with a vacuum degree of 50-200Pa
Vacuum stirring and deaeration of component B at 50-60 ℃/1-2 hours, with a vacuum degree of 50-200Pa
4、 Mixing and mixing
63 ℃ -67 ℃/30-45min, vacuum degree 50-200Pa
5、 Mold pre drying
100-110 ℃/4-5 hours
6、 Pouring chamber
75 ℃ -80 ℃ Vacuum degree 50-300Pa Workpiece temperature 75-80 ℃
7、 Pouring
The pouring time should be controlled within 1.5-2 hours (counting from the start of mixing), pay attention to the flow rate control, about 1.5 kilograms per minute, observe bubbles, and control the temperature of the final mixing tank within 60 ℃ -65 ℃ due to the exothermic reaction of the mixing material.
After pouring, maintain the pressure in a pouring chamber with a temperature of 75 ℃ -80 ℃ and a vacuum degree of 50-200Pa for 30-45 minutes before exiting the tank and entering the curing process.
8、 Curing process: 80 ℃/6H+100 ℃/4H+130 ℃/6H
matters needing attention
1. Flow control is generally manual operation, and the flow rate is strictly controlled according to the size of the package. It is generally controlled at about 1.5 kilograms per minute to avoid bubble deposition in rabbits.
2. The vacuum degree of the pouring tank should be about 50Pa higher than the vacuum degree of the mixing tank
3. According to seasonal changes, the discharge temperature of the workpiece should be controlled to prevent cracking.
4. After the workpiece is discharged from the tank, the cleaning process should be carried out quickly
5. Observe the changes in the solidification liquid level of the workpiece and replenish the material in a timely manner
6. Pay attention to error control for simple molds
7. It is recommended to use high-quality release agents to ensure the release effect
4packing
Component A: 25kg/barrel, Component B: 25kg/barrel
Storage conditions
The product should be sealed in its original packaging container and stored in a dry and ventilated place. In an environment of 18-40 ℃, the shelf life is 6 months. If the shelf life is exceeded, analysis is required to determine whether it is still valid.
Due to storage conditions, this product may experience a small amount of precipitation during storage, which is a normal phenomenon. After stirring evenly, it can be used normally.
 

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