How to make a perfect plastic injection mold and injection molding is always our goal.

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 the product to warp and even crack. Residual stress is also generated during the machining of the mold steel. This …

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 by thermocouples. The working temperature of the hot-runner system is not dissimilar to that of the molten …

How to avoid contamination and waste in injectionmolding shop? Keeping material clean The importance of cleanliness in the plastic mould injection shop is nowhere more apparent than in the making of mouldings free from contamination. Safeguarding the material in the sack is an obvious matter, but is often ignored. Partially used sacks or containers should …

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 building where material can be granulated using an ordinary masson-type cutter. Although this produces re-work …

Plastic materials move after getting heated up to the suitable temp (which can vary with every single materials). This kind of capability might be tested by evaluation, working with a melt index device per ASTM Test #D-1238. This capability to flow likewise confirms what lengths a plastic material could be shot with a certain wall …

China Injection Mold Cost Many buyers who purchase injection molds from China are solely focused on saving money. However, this isn’t the right attitude to take, since you’ll ultimately want a mold that works properly and is reliable, instead of just being cheap. How much a plastic mold tool will cost is dependent on several …

             “Auxiliary Equipment” is considered any additional equipment required for assisting the primary equipment (molding machine) in producing the final production of the molded parts. It includes items such as granulators, mold temperature controllers, hopper loaders, and the like. These should not be confused with “Secondary Equipment” which is considered …

Plastic Mold Building Tips I’m sure you’ll agree with me when I say: Building a perfect plastic mold is really complicated. Or, is it? Well, it turns out that finish this job may not be as hard as you’d have thought. All you have do is to check the following 22 building tips and follow …

       All the effective technique of controlling the quality and the expense of an item is based greatly on the uniformity with the method employed to produce that item. Uniformity are only able to be accomplished by securely managing as numerous variables as possible over the production procedure. Injection molding atmosphere The atmosphere …

Hot-runner molds offer significant processing advantages. Of primary importance is the material savings that results from elimination of the runner system. A hot-runner system represents in essence an extension of the machine nozzle through which the plastics melt flows directly into the cavities. For parts having identical weights, the amount of material to be plasticized …

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