The invention relates to the technical field of mold production, in particular to a foam mold production and
processing technology which comprises the following steps: step 1,
raw material pretreatment and mixing reinforcement: a
copolymer STMMA is adopted to replace traditional EPS, and nano
montmorillonite is added as a nucleating agent, so that the
bubble nucleation density is increased, and
cell merging is inhibited; then carrying out mixing reinforcement in a
supercritical fluid saturation mode; and 2, staged injection and microcellular foaming control are carried out, staged injection is carried out through multi-stage
injection pressure setting, then filling paths are ensured to be symmetrical through parting
surface pressure control foaming control, and the
density gradient is reduced. According to the process, through three innovations of
supercritical fluid nucleation control, parting surface
dynamic pressure regulation and a gradient cooling
system, the non-uniform foam holes and the cooling
bottleneck of a traditional foam mold are broken through. And in cooperation with the surface texture and intelligent monitoring, the
bearing capacity, light weight, design freedom and other dimensions of the foam box are remarkably improved, and
technical support is provided for high-end logistics packaging.