Introduction to the Strength, Rigidity, and Installation Requirements of Hot Press Machines

A hot press machine is a key component for transferring heat and pressure. Its thermal conductivity, mechanical strength, rigidity, and processing accuracy all have varying degrees of impact on product quality and production output. The temperature distribution across the hot press plates should be uniform to ensure even heating of the compressed board.

Strength and Rigidity Requirements of the Hot Press Machine

A hot press machine must have sufficient strength and rigidity to withstand the thermal stress caused by temperature fluctuations. The upper and lower surfaces of the hot press plates should maintain high parallelism, flatness, and appropriate surface roughness. Additionally, the internal heat-conducting channels should have minimal resistance to allow smooth circulation of the heating medium.

The internal structure of the hot press plates is designed with multiple channels, which are processed and sealed with plugs and welds to create a specific circuit for saturated steam, hot water, or thermal oil to flow through, ensuring effective heating of the press plates and compressed boards.

Installation Requirements for Hot Press Plates

During installation, the steam inlet and outlet of adjacent hot press plates must be arranged in opposite configurations. This setup allows high and low-temperature zones between adjacent plates to compensate for each other, ensuring even heating of the compressed board.

The design of the heating channel circuit plays a crucial role in enhancing hot press efficiency and reducing pressing time. A smaller temperature difference across the hot press plate results in better product quality, minimizing strength loss caused by drilling and reducing flow resistance within the heating channels.

If the hot press plates become clogged, temperature differences increase, leading to uneven heating, inconsistent moisture content, and product deformation, such as warping and weakened strength. Additionally, this issue prolongs the pressing time and decreases production efficiency.

Safety Precautions for Operating a Hot Press Machine

1. Ensure safety during operation and maintenance—hands should never be placed inside the hot press plates.

2. Shut down the machine and disconnect power when there is a thunderstorm or lightning risk.

3. Keep the oil circuit switch open at all times.

4. Do not leave the workstation while the machine is running.

5. Preheat the hot press machine by gradually increasing the temperature without applying pressure. Only when the required pressing temperature is reached should production begin to ensure optimal lamination quality.