Low-pressure perfusion molding technology is different from the traditional injection
molding technology. Low-pressure perfusion molding not only have the physical forming
solidification, heat exchange process ,but also with chemical polymerization and crosslinking
reaction process. The process is not only determined by the reaction kinetics and
thermodynamics, also affected by physical conditions.
The characteristics as below:
1)The molding filling time is very long,as the material injection is under low pressure .
2)After filling material, because of two-component materials polymerization and crosslinking
reaction, will further raise the material temperature.
3)Compared with the fill slope time,the material curing time is very long. In the process of
forming ,the material curing accounted for most of the time.
4)The material after forming with thermosetting properties.
5)Because the material injection is under low pressure, so only fit for simple structure
workpiece forming , especially the simple shape workpiece which the height size is far less than
the length and width size .
