CHUNG HUA PLASTIC|Your Intelligent Partner in Plastic

Mold Flow Analysis

Mold Flow Analysis

Assisting clients in enhancing product reliability and stabilizing mass production quality.

Moldflow analysis is a vital tool in the development phase of plastic injection molding. By simulating melt flow, packing behavior, and cooling conditions, it allows us to predict potential defects before we create plastic molds and optimize injection mold design. This ensures consistent quality, shortens development cycles, and reduces trial runs, making it an indispensable step in the fabrication of custom plastic parts.

1

Mold Flow Analysis

Predicts the melt flow path within the plastic mold to identify potential issues such as:
■ Air traps
Short shots
Weld lines
Uneven filling
It also assists in optimizing gate locations, runners, and wall thickness to improve product moldability.

2

Holding Pressure Analysis

Analyzes pressure distribution during the packing phase to ensure the dimensional stability of injection molded parts, and minimizes:
■ Shrinkage
■ Sink marks
■ Warpage
■ Dimensional deviation
Helping clients improve mass production yield.

3

Warp Analysis

Predicts deformation trends after cooling to understand the causes of warpage (uneven wall thickness, fiber orientation, uneven cooling), and provides improvement recommendations to ensure the appearance and dimensional stability of custom plastic parts.

4

Cooling Analysis

Verifies the effectiveness of cooling channels in the injection mold design and evaluates cooling system efficiency:
■ Is cooling uniform?
■ Can cycle times be reduced?
■ Will it cause warpage or sink marks?
Assisting clients in reducing cycle times and improving production efficiency.

5

Defect Prediction

Moldflow analysis provides early prediction of:
■ Weld lines
■ Air traps
■ Jetting
■ Short shots
■ Deformation caused by fiber orientation
This allows clients to adjust plastic part design for injection molding or process parameters before injection mold building, significantly reducing risks.

Advanced Moldflow Analysis Process

T0 

Pre-mold Analysis

Utilizes CAD models to conduct preliminary Moldflow analysis and evaluate:
■ Moldability
■ Melt filling paths
■ Structural risks of the plastic design
■ Gate and runner layout for injection mold design
At this stage, the parameters derived from the preliminary simulation are used to conduct prototype injection molding on the machine.

T1 

Generating Real Data

Our equipment outputs real injection molding parameters, including injection pressure, speed, melt temperature, mold temperature, packing time, and cooling time.
These data can be directly imported into the Moldflow model, aligning simulation results with actual mass production conditions and significantly enhancing analysis accuracy.
Benefits:
■ Simulation is no longer just theoretical.
■ Results closely reflect actual custom injection molding.
■ Reduces machine tuning time.
■ Facilitates rapid confirmation of optimal molding parameters.

T2-Tf 

Precision Optimization

When the injection mold design is adjusted or process conditions change, we re-apply mass production data to the new Moldflow model. This enhances simulation accuracy, enabling rapid comparison of differences and optimization of cooling, packing, warpage, and dimensional precision. Ultimately, this ensures greater stability during the plastic injection molding phase and reduces adjustment time.