I. Co-optimization of Temperature Parameters
To reduce melt viscosity and reduce mould filling time by 10%-15%, increase the overall barrel temperature by 5-10°C within the range permitted by material properties.
Accurately regulate the temperature of the mould. Moderately increase the mould temperature for high-viscosity materials to reduce flow resistance. Moderately decrease the mould temperature for low-viscosity materials to accelerate cooling, avoiding excessively high mould temperatures that prolong the cooling cycle.
II. Accurate Speed Parameter Management
Employ a multi-stage layered injection speed control system. Moderately increase the mid-stage filling injection speed to reduce the overall mould filling time, while ensuring that no flash or scorching defects occur.
To expedite the melting process and reduce the plasticization waiting time, gradually increase the screw speed without compromising the uniformity of plasticization.
III. Optimisation of Pressure and Time Parameters
Ensure that the optimal holding pressure switching point is precisely locked to prevent the filling speed from being slowed by switching too early or overfill defects from resulting from switching too late.
Adopt a holding pressure that decreases gradually. To prevent unnecessary holding pressure redundancy, reduce the holding pressure duration by 20% while ensuring that no shrinkage marks appear in the product.
Reduce the cooling time gradually until the product ejects without whitening, cracking, or deformation, thereby securing the shortest cooling time to directly compress the moulding cycle.
IV. Optimisation of Motion Parameters and Mould Closing
Utilise a progressive curve to enhance stability during the acceleration phase and maintain a buffer distance during the deceleration phase to establish a reasonable mould closing speed. This reduces the time required for the mould to open and close, while simultaneously safeguarding it.
Enhance the speed of ejection and reset. To reduce the time required for ancillary actions, moderately accelerate the ejection and reset actions without ejecting whitened products.
V. Optimisation of Multi-Cavity Mould with Specificity
Ensure that each cavity is filled in a synchronised manner by utilising the hot runner system's high-precision temperature control capabilities. This eliminates the necessity of intentionally extending the filling and holding periods to achieve balanced filling.
Guarantee that the cooling speeds of each cavity are synchronised to prevent the forced extension of the overall cooling cycle as a result of localised cavity cooling lag.
This parameter optimisation solution is optimally adapted for your current precision hot runner multi-cavity mould injection moulding production line. It can considerably enhance production efficiency while maintaining a consistent product yield by shortening the overall moulding cycle by 20% to 30% after implementation.
