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plastic mold venting  Before injection molding, there is a large amount of air in the flow path and the cavity. When the melt enters the cavity quickly, it is necessary to discharge the air quickly. In addition, when the melt…

9 Tips to Make the Mold Buying Process Easier It can be complicated to buy an injection mold, as there will likely be a lot of back and forth between buyer and contract molder before the final product is settled on.…

What is a short shot short shot in injection molding refers to the phenomenon that the injection material does not fill the mold’s cavity, resulting in incomplete parts. It usually occurs in thin-walled areas or areas away from the gate.…

The gate is a narrow intersection between the main runner and the mould cavity, and the intersection is also the shortest part on the whole mold. Its function is to make the molten plastic enter into the mould cavity quickly, which…

How to choose mould steel The choice of mould steel is of great importance if the mould is to function effectively. When plastic is molded, due to molecular stretching and shearing, residual stress is left in the product, which causes…

Runnerless Mold A runnerless or hot-runner mould system could be considered as an extension of the moulding machine injection unit. In this case，the polymer is kept molten right up to the cavity gate by means of additional heating elements controlled…

How to avoid contamination and waste in injection-molding shops? Keeping material clean The importance of cleanliness in the plastic mould injection shop is nowhere more apparent than making mouldings free from contamination. Safeguarding the material in the sack is an…

Most injection moulding organizations cannot go to the expense of having a complete reprocessing plant consisting of granulator, mixer/extruder, and die- face or lace cutter. The general arrangement is to have a room in a fairly remote corner of the…