Fan Mould, Houseware Mould, Auto Mould, Plastic Sanitary Mould, Plastic Trafic Barrier Mould, Garden Tool Mould︱KING MOULD---Taizhou Huangyan King Mould CO.,LTD.

Plastic injection molding is a popular and economical industrial process for manufacturing a wide range of plastic consumer products. These include plastic container mould , chair mould, air confectioner mould , basket mould, pallet mould, bucket mould, washing machine mould, kitchenware mould, garden equipment mould, pitcher mould, toys mould, bottle caps mould, pet product mould, toilet seat mould, gears mould and so on. These items are mass-produced using molding machines of various sizes and various specific requirements.

In the plastic molding process, plastic resins are used in pellet or granular form. Choice of plastic type depends on the kind of product being made, its requirements and the overall budget. Of the hundreds of available plastics, only a few are safe for consumer use. Some of the ones used in the plastic injection molding process include polystyrene, polycarbonate , polypropylene, polyethylene, polyamide,polyvinyl chloride, Teflon®, Delrin®, and acrylic.

Plastics are non-degradable and therefore not environment friendly. The plastic injection molding process, however, plays a positive role in reducing waste. Plastics used in the process can be reused as often as required.

The plastic pellets or granules are poured into the feed hopper of an injection molding machine. The feed hopper is a large container that opens into a heating cylinder. In the heating cylinder, the pellets are subjected to intense heat until the plastic melts.

A plunger or a screw then pushes the molten plastic forward through a nozzle into a split-die mold. The mold is the reverse of the part to be made and can have one cavity or several to make more parts at the same time. Molds can be made of durable and expensive steel, or the more affordable, less-durable aluminum or beryllium-alloy metal.

As with selecting the right plastic type, selecting the mold metal depends upon product, cost and durability factors. Manufacturers often use a less expensive metal mold for prototype molding, and get the more long-wearing, precision-machined molds when the production demand increases.

The molten plastic cools in the mold, hardens and takes on the shape of the mold. The mold then opens and the part is ejected out. It is then either ready for packing or is prepared for any other secondary operations. The whole plastic injection molding process is completed within a few minutes and can be carried out automatically.

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