What is a foam forming machine? What is the principle?
1. Definition of foam molding machine
It is a machine used to inject raw materials that can produce plastic foam into the gap between the container and the film-lined contents during product packaging, and form a foam cushioning material that tightly wraps the contents through a chemical reaction.
2. Principle of foam forming machine
Foaming equipment is equipment that can make an aqueous solution of a certain concentration of foaming agent into foam. The foaming agent itself cannot automatically become foam. It must pass through the mechanical action of the foaming machine to become foam. Foaming machine and foaming agent are a technical system that cooperate with each other and cannot function alone.
The foaming equipment itself cannot produce foam out of thin air. It introduces air into the foaming agent aqueous solution and disperses it evenly to achieve the largest possible contact surface between the liquid and gas, so that the surfactants in the foaming agent are on the surface of the liquid film. A double electrical layer is formed and surrounds the air, forming bubbles.
The main body of foam concrete is foam, so the foaming machine for making foam has become the key equipment and host for foam concrete production. Without it, there would be no foam concrete.
The two component liquids A and B are accurately proportioned and stirred at high speed. Two high-precision metering pumps transport the two component liquids A and B to the mixing head respectively. After high-speed and intense stirring, the liquid material is sprayed out evenly to form the desired product.