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Injection molding

The generation in preventing a mould to design shapes the method of shrinkage error

Published on:2014/8/12 10:46:30

Keyword:Mould, fix model product
Introduction:Because shrinkage is met,produce change because of noting model pressure, so, to monotype antrum mould, model the modular antrum pressure inside antru...

Because shrinkage is met,produce change because of noting model pressure, so, to monotype antrum mould, model the modular antrum pressure inside antrum should agree as far as possible; As to how model antrum mould, model the modular antrum pressure between antrum should differ very small. In monotype antrum much runner or much model below the state of antrum much runner, must with exactly like the pressure that note model injects, make model antrum pressure is consistent. For this, must ensure make runner position balanced.

To make model the modular antrum pressure inside antrum is consistent, the pressure that had better make runner entrance is in agrees continuously. What runner handles pressure is balanced the obstruction of going from place to place in following flow path is concerned. Accordingly, achieve in runner pressure balanced before, should first mobilize is balanced.

Because mould temperature is right,shape the impact of shrinkage is very big, at the same time immediate also impact notes the mechanical performance of model goods, still can cause goods surface see things in a blur to wait for all sorts of shaping blemish, must make touch a temperature range that lasts in the regulation so inside, and make mould temperature is not followed even change. Much model of antrum mould each model the difference in temperature between antrum also cannot produce change.

For this, net of mould of an ancient name for China points out, the temperature that pair of moulds must be adopted to heat in mould design or cools controls measure, and to make mould each model the difference in temperature between antrum narrows as far as possible, must notice lukewarm accuse - the design of cooling loop. Be in model antrum, model core is lukewarm in dominating return circuit, basically series connection refrigeration cools with paralell connection means of two kinds of join.


Keyword:Mould, fix model product

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