2011 foreign trade condition

In general, there are some favorable conditions for 2011 foreign trade development. Slow world economic recovery, especially new emerging economies growth will bring more demands and also will face lot of uncertainties. Taking all factors into consideration, China’ foreign trade in 2011 will maintain stable development, but growth rate will be slowed down. Under the [...]

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Refrigerator roof mould

This is a refrigerator roof mould, which has a high demand on appearance. As the reason of the gate, we should do the reverse refrigerator roof mould structure. As we talked before, the force of the reverse refrigerator roof mould comes from hydraulic cylinder. As the hydraulic cylinder needs a reliable and stable ejector structure, [...]

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Three-Plate mold

Three-Plate mold is a mold which had a runner plate in between moving half and fixed half. The runner exists between the runner plate and the fixed half.The cavity is located in between the runner plate and the moving half of the mold. Pin-point gates typically locate at the middle of the plastic part, away [...]

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PC injection molding troubleshooting

1. PC injection molding temperature should be according to the shape, dimension and mould structure of the PC components. Normally the molding temperature should be 270 to 320℃. if the temperature higher than 340℃, PC will become decomposition, the molded PC components surface appear silver line, gray line, black points, air bubbles and so on, [...]

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How to use mould correctly

The injection mould is the key tool for injection molding. If the quality of the mould goes something wrong, for example, their each position has changed, the molding surface has become rough and shape has changed. These situations happened will affect the quality of the mould. Therefore, operator must notice the correct use of the [...]

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Gas-assisted injection molding

Gas-assisted injection molding is a newly-established injection molding technology. Gas-assisted injection molding working principle is to produce a hollow section inside the plastic products by high pressure gas. Instead of injection pressure maintenance, gas-assisted injection molding uses gas pressure maintenance to eliminate products sink mark and complete injection molding process. Gas-assisted injection molding process includes [...]

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Injection molding conditions

There are totally 5 points for injection molding conditions: Injection molding conditions 1 The large molecular structure of polymer and the features of molecular thermodynamic movement have determined that polymer has such states of aggregation as the glassy state, highly-elastic state as well as viscous flow state etc. The transformation of aggregative state is influenced [...]

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BRASILPLAST 2011

BRASILPLAST 2011 is the biggest plastic exhibtion fair in South America. BRASILPLAST 2011 time:May 9th to May 13th, 2011(two year one show) BRASILPLAST 2011 location:ANHEMBI PARK EXHIBITION HALL BRASILPLAST 2011 orgnizer:Alcantara Machado Feiras de Negócios Ltda.. BRASILPLAST 2011 products: BRASILPLAST 2011 plastic machinery and related equipments:plastic injection molding machines, film rotary blowing machine, bottle blow [...]

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related mould keywords research

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plastic part dimensional control

Plastic parts are molded under elevated temperature, their dimensional accuracy control in affected by accuracy of the mould and shrinkage of the plastic material, which is affected by the following factors to control plastic part dimensional accuracy: 1) Each plastic material has unique shrinkage rate, which may further vary by its manufacturer, batch number, and [...]

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