USING SCIENTIFIC MOULD-MAKING TECHNIQUE TO PROVIDE YOU WELL MOULD.
About the cycle time, a complete cycle is: Mold close — injection — cooling ( charging at the same time) — mold open — ejection — mold close
Normally, the Machine dry cycle (mold open-ejection-mold close) takes about 3 sec, the injection will take about 2 sec. rest time is for cooling, spoon with 24 cavities, about 8-10 sec for cooling is normal.
So in total cycle time, 13-15 sec is normal cycle time. How to get shorter cycle time, is not easy work, we need to pay attention to the following points:
*from mold, cooling system design is a key point, maximum cooling is mold designer need to consider.
*at the same time gate and runner size are important too. the most difficult cooling area is the runner and gate. the gate size should be controlled in a suitable size, to ensure easy injection but not take a long time for cooling.
*Besides mold, the cooling condition is important too, chiller for sure is necessary for summer, in some countries with high temp. all the year, a good chiller should be prepared.
*From the machine, dry cycle 3 sec is normal, if you want to get less cycle time, you can discuss with the machine factory to see whether they can reduce dry cycle and injection time.
Above are some experience I get during mold testing, if you have any comments, or questions, welcome to discuss with us. and also welcome to Aoxu, let’s work together to get a good solution.
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