Epoxy Resin Mixing And Casting For Power Transformer

Epoxy vacuum casting equipmentStatic casting of transformers
 

Advantages of static mixing and pouring equipment:
1. Automatic batching, improving the accuracy of mixing ratio and reducing labor intensity.
2. Automatic material preparation, vacuum can be set, automatic control, to avoid the evaporation of accelerators and other substances caused by prolonged high vacuum.
3. Suitable for automatic proportioning of resins, curing agents, and fillers.
4. Adopting a static mixer, suitable for large-scale or intermittent production, pollution-free. Easy to clean, with minimal waste.
5. Single component resin can be circulated through static mixers and pouring valves to avoid clogging caused by filler precipitation.
6. It can achieve automatic or manual pouring, and the pouring amount of each coil can be set and recorded for comparison.
7. High degree of automation, with more process monitoring and recording, and convenient operation. Equipped with advanced human-machine interface, it can achieve online remote fault diagnosis.
8. Equipment is environmentally friendly and energy-saving. While ensuring production capacity and quality, the equipment has low power consumption, less resin waste, and occupies less space.

Mixing system:
There are two material preparation tanks designed with an effective capacity of 120-300 liters (optional). According to the proportional relationship, each batch can continuously mix epoxy resin and curing agent.
The resin, curing agent, and mixture are heated by their respective heating systems. According to process requirements, the material temperature can be set between room temperature and 90 ℃, with an error range of ± 2 ℃.
The material pipe adopts a double-layer jacket structure and shares a water heater with the material tank to ensure a constant material temperature. The mixture can also be cooled down to extend its service life.

Automatic metering pouring system:
By using a metering pump, two single component materials are mixed in a static mixer and finally poured onto the mold.
Because the mixing time is fast and short, the mixture is fresh and has good fluidity, and the wettability of the coil is improved, it can prevent the aging problem of resin gel caused by the common long-term mixing of dynamic mixing.
The discharge position of the metering pump and static mixer is equipped with sensors, which can measure and monitor the mixing ratio online, ensuring that the measurement of each stroke of pouring is correct and the mixing is uniform, avoiding coil accidents that cannot be solidified. The measurement and monitoring data can be recorded and stored. The measurement and monitoring device is reliable and will not leak air or materials.

Automatic operating system:
The equipment is controlled by PLC and equipped with a color display. Vacuum suction, heating and vacuum stirring treatment, cycle and cleaning stroke number, mixing and pouring drying process can be automatically carried out through preset parameters.
The monitor can display the operating status of the electrical components of the equipment. Process parameters such as temperature, vacuum degree, weight, fault alarm, etc. can be displayed or set on a color display.