Working principle of foam forming machine
Foam is now used in many packaging, which plays a role of cushioning and prevents the packaged parts from being damaged by external mechanical forces.
The foam is made by a foam forming machine. Do you know the working principle of a foam forming machine? Let's take a look together.
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 content during product packaging, and form a foam cushioning material that tightly wraps the content through a chemical reaction.
2. Working principle of foam forming machine
Foam does not appear out of thin air, it must be produced by foaming equipment through a special process.
Foaming equipment is the equipment that can make a certain concentration of aqueous solution (foaming agent) into foam.
The foaming agent itself cannot automatically become foam, it must pass the mechanical action of the foaming machine to become foam.
The foaming equipment itself cannot produce foam out of thin air. It introduces air into the foaming agent aqueous solution to evenly disperse it to achieve the largest possible contact surface between liquid and gas, so that the surface active substances in the foaming agent are formed on the surface of the liquid film. The electric double layer surrounds the air, forming individual bubbles.
The foaming machine and the foaming agent are a technical system that cooperates with each other and cannot play a role alone.