The working principle of Apg type epoxy resin clamping machine

2024-09-27 16:34:21

APG type epoxy resin clamping machine, that is, automatic pressure gel forming machine, is mainly used for the production of epoxy resin power products, such as transformers, insulation parts, SF6 insulation shell, sleeve, contact box, etc. Its working principle can be summarized as the following key steps:

1. Preliminary preparation

Material preparation: The thermosetting material epoxy resin, curing agent, silicon powder, color paste, etc., is fully stirred and vacuum defoaming treatment in the mixing cart according to a certain ratio (usually 1:1:3.5: several) to ensure the uniformity of the material and no bubble state.

mold preheating: After the metal insert is molded, the mold temperature is preheated to 80100 ° C higher than the temperature of the epoxy resin mixture, that is, 140160 ° C, to ensure that the epoxy resin can cure quickly after injection into the mold cavity.

Second, automatic pressure gel process

Filling: Through the pressure system of the apg equipment, the epoxy resin mixture system after vacuum defoaming is pressed into the preheated mold through the pipe. In this process, it is necessary to connect the feed pipe and ensure that the inlet valve of the mixing tank is opened for smooth feeding.

Pressure preservation: When the material in the mold is filled, the air pressure is raised to the required value for pressure preservation. The purpose of the pressure retention is to ensure that the epoxy resin flows fully in the mold cavity and adheres tightly to the mold surface, while promoting the curing reaction of the resin.

Third, forming and post-processing

Curing molding: After holding pressure for a period of time, the epoxy resin is gradually cured in the mold. At this point, you can turn off the pressure system and wait for the mold to cool naturally to a certain temperature.

Open the mold to take the product: after the mold is cooled to a safe operating temperature, open the mold to take out the cured product. At the same time, the insert is removed and sent to the oven for post-curing treatment to further improve the performance and stability of the product.

4. Advantages of automation

The APG epoxy clamping machine offers significant automation benefits, including:

One-button start: The equipment automatically completes the whole process of mold closing, feeding, pressure holding, mold opening, etc., without manual participation.

Cost saving: one person can operate multiple equipment, greatly saving labor costs.

Improve production efficiency: Automated operation reduces the interference of human factors, improves production efficiency and product pass rate.

Reduce accidents: Automation reduces labor intensity and safety risks for operators.

5. Application and Prospect

With the development of the energy industry and the increasing demand for high-voltage power equipment, the application of APG molding technology in the power industry is more and more extensive. In the future, with the continuous progress of technology and the continuous optimization and upgrading of equipment, APG type epoxy resin clamping machine will play a more important role in the production of power equipment.

To sum up, the apg epoxy resin clamping machine realizes the whole process of epoxy resin mixing, filling, pressure holding and curing through automatic control, which has significant advantages such as high efficiency, energy saving and safety, and has important application value and development prospects in the production of electric power equipment.