Vacuum impregnation of vacuum impregnation process

After the impregnating pot is transported in vacuum, the workpiece is immersed in the impregnating paint, so that the paint liquid can be fully immersed in the insulating structure of the workpiece in vacuum form. The vacuum degree after the vacuum transporting can be dipped into the vacuum parameters of the paint. It is advisable to keep the active diluent components in the impregnating paint liquid from escaping in large quantities. Whether the curing of the edge paint reaches the final rigid level or not. Excessive vacuum can also lead to the "foaming" and "atomizing" of the impregnated paint, which can affect and crisis the filling and curing of the impregnated paint.

Two. Pre drying of workpiece in vacuum continuous impregnation process.

Put the workpiece in the necessary temperature before immersion and under normal pressure, and keep the necessary time, so that the moisture, solvent and other volatile materials inside the workpiece can be fully volatilized, and make the workpiece get heat, so that in the form of residual heat temperature, vacuum exhaust and vacuum impregnation. Clearly, the pre-baking temperature must be above 100.C. Similarly, the pre-baking temperature and pre-baking time parameters of the workpiece are limited by the insulation structure, technical specifications and paint characteristics of the workpiece.