MASTER reaction injection moulding is a molding process industry

MASTER reaction injection moulding is a molding process industry. Molding process in a chemical reaction injection molding method, this method is not a polymer raw material, and the two or more liquid monomer or prepolymer, a certain proportion is added to the mixing head, in addition pressure mixing, immediately injected into the closed MASTER mold,polymerization and curing in the mold, shaped into articles. Since the materials used is liquid, i.e., with a small pressure to quickly fill the mold cavity, so reducing the cost and the mold clamping force, it is particularly suitable for the production of large-area workpieces.

MASTER plastic mold

MASTER plastic mold

With the increasing precision china plastic injection molding , in addition to the correct selection and selected MASTER plastic pallet mould , how to choose the molding process conditions, a reasonable comprehensive analysis of the relationship between the shrinkage products and process among the parameters, and for various reasons and processing factors that affect it and so produce shrinkage is a very important issue. Starting from the gate until the release of the entire period of solidification cooling phase. At this stage no other new melt into the mold cavity, piece weight and density PE products not change. The cooling process, the MASTER thin wall moulding shrinkage of the article temperature and cooling rate, cooling time concerned, cooling speed, article no time relaxation, shrinkage ratio may be smaller; if the mold temperature is high, the cooling rate is slow, sufficient relaxation time of the molecule, contraction rates may increase.