The polyurethane foaming machine is a device that can make the foaming agent in a certain concentration of aqueous solution, and the foaming agent itself does not automatically foam, and must be foamed by the mechanical action of the foaming machine. The foaming machine and the foaming agent are technical systems that cooperate with each other and cannot function alone.
The characteristics of the polyurethane foaming machine are continuous pressing, foaming, forming and sawing. Various large, medium and small composite boards can be manufactured. Due to its high production efficiency and stable product quality, it is a relatively advanced production process. The discontinuous composite board production line is mainly composed of single-layer and multi-layer presses and foaming machines. One feature of this process is that
If the pressure of the polyurethane foaming machine is too low, the two components will not be completely mixed and affect the foaming rate, but if the pressure is too high, the process requirements of the entire equipment will be very high. Temperature also has a great influence on the foaming rate. If the temperature is too high, the reaction rate will be fast, and other equipment and processes will be needed to adapt. If the temperature is too low, the reaction will be slow and the curing time will be long, which will affect production accordingly. Therefore, the design process should control the temperature within the range of 65±1°C according to the process requirements.