Supercritical physical foam molding is a micro-cellular physical foam molding technology. The supercritical physical foam molding process, the supercritical carbon dioxide or nitrogen and other gases are injected into a special plasticizing device in the supercritical physical foam molding process to realize injection, extrusion and blow molding, the gas and the molten raw material are fully mixed and diffused to form a single-phase mixed sol, and then the sol is introduced into the mold cavity or extrusion die, so that the sol generates a large pressure slurry, the gas precipitates to form a large number of bubble core. In the subsequent cooling molding process, the bubble core inside the sol continues to grow and shape, and finally obtain micro-cellular foamed plastic products.
Traditional foaming methods and disadvantages are as followed.
| NO. | Traditional foaming method | Disadvantages |
| 1 | Butane foam | Butane gas is explosive, and the use cost is high, resulting in high investment cost of the production line |
| 2 | CFC (chlorofluorocarbon) foam | CFC destroys the ozone layer |
| 3 | Butane and chlorofluorocarbon foam | Not easy to adjust and control the foam cell size |
| 4 | Chemical mediator | Chemical media is expensive to use, toxic, and cannot be recycled |
Supercritical physical foam molding advantages:
| NO. | Supercritical physical foam molding advantages |
| 1 | High dimensional accuracy of products, shorten product development cycle |
| 2 | Significantly reduce product residual stress, improve product warpage and deformation, eliminate surface shrinkage |
| 3 | Supercritical physical foaming equipment is simple in process, low in cost, and environmentally friendly |
| 4 | The fluidity of the mixed sol is increased by 20% ~ 40%, the viscosity is low, and it is easy to fill the mold |
In nowadays, people’s require high quality lifestyle. More attention is paid to health and comfort when selecting dresses. In particular, the requirements for daily necessities are getting higher and higher, not only requiring good quality and low price, but also requiring health and environmental protection.
The European Union and the United States have legislation prohibiting the use of chemical media for foaming, and the requirements for environmentally friendly production in China are also becoming stricter. It is a general trend to seek a new type of foaming technology and equipment that are environmentally friendly, pollution-free, and of high quality and low price.
Our supercritical physical foaming equipment adopts this new type of physical foaming technology, which can supply two kinds of foaming gas, carbon dioxide and nitrogen to the equipment at the same time, which is convenient for customers to choose freely according to different needs. Significant cost savings.
STRENGTH Equipments is not only manufacturing high quality industrial autoclaves, storage tanks and dished ends but also providing custom product design, fabrication and after-sale service. ODM, OEM are also available. If you have any questions or inquiries, please fill and submit the following form, we will reply as soon as possible.
