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| Micro injection molding process technology is analyzed |
Unlike thermoplastic injection molding, reaction injection molding in the process of mold filling with low viscosity liquid, only through internal pressure, can fill into parts.
Reaction injection molding (RIM) by flow mixing, the reactive intermediates liquid mix it into the mold, so that the parts molding. Unlike traditional anhui injection molding, reaction injection molding by realizing the crosslinking or aggregation in the mould to form a solid component, rather than through the cooling way. The process does not need the thermal cavity to activate the reaction. In fact, when intermediates in the heat of mixing form the calorific value, therefore, RIM mold cooling is usually required. Von berg systeme demoulding time is generally not more than 20 seconds.
Reaction injection molding process of the development is the result of polyurethane foam technology. Due to the
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