1.Vacuum hot press machine is high temperature hot pressing laminating machine. Semi-automatic and full-automatic operation type. Widely used in aerospace polymer materials and other fields, in high temperature and high vacuum conditions for hot pressing molding.

2.The structure of vacuum hot press is made of fixed steel material, supplemented by precise design, fully welded skeleton, able to operate under complicated conditions of high temperature and high pressure. 

3.The furnace body of the vacuum hot press is a vertical furnace shell, the inner layer of which is a stainless steel cylinder, and the outer layer is carbon steel; the vacuum system is composed of an oil diffusion pump, a Roots pump, equipped with an electromagnetic pressure difference valve, an inflation valve, a bleeder valve, a vacuum butterfly valve, a vacuum pressure gauge corrugated by a tube, a vacuum pipeline, and a bracket, etc.

The hydraulic system adopts an electric input method. Hydraulic system adopts electric input method. Hydraulic station is equipped with imported proportional valves, pressure sensors, displacement display using a scale. The instrument can be set to adjust the pressure automatically and voltage stabilization and pressure maintenance can be achieved.

The water cooling system consists of various valves and piping related devices, and is equipped with a water cut-off sound and light alarm, which can automatically cut off the heating source or function.

The temperature control system adopts thyristor to control the temperature, equipped with PID function instrument, digital display, with over-temperature sound and light alarm function, PLC touch screen can also be automatically controlled, and retain the historical data, convenient to analyze the sintering process.

The filling system consists of various pipes and valves, and is equipped with electromagnetic bleeder valve and pressure sensor. It will automatically deflate when the pressure in the furnace is higher than the safety value. There is a needle valve on the filling pipe to control the filling volume. 

4.The operation of vacuum hot press has manual and automatic control working modes. In manual mode, it can be adjusted point to point for mold debugging and pressure test; In automatic mode, it can be semi-automatic processing of products.

1.Tonnage：400Ton（5cylinders）

2.Number of openings: 4 layers 

3.Size：600mm*700mm*45mm

4. Heating Method：Electric Heating hot coal heater

5.Temperature：Max380℃

Preparation 

1.Clean up the machine (including the glue scale on the light board) and the operation place;
2.Check whether there is oil leakage in the oil bed and oil circuit;
3.Check whether the oil pump circulation switch is on;
4.If anisotropic workpiece, check the yin and yang cross first to see whether it meets the requirements of the drawing;
5.After the test machine, preheat the press bed; prepare the materials and auxiliary materials (mat board, cardboard, etc.)

Operating procedure

1.Set the pressure of the hot press;
2.Put the samples into the hot press, each press a specification of the plate, must make the first piece of self-inspection, to see whether the displacement, glued firmly or not;
3.At the end of the operation, cut off the power supply and clean up the residual materials.