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Fan gate mechanism. For large or thick part sections the fan gate provides a smooth transition from the runner to the cavity. The pin (in pink) fixed to the lower sector moves the upper adjac This lesson covers when and why to use fan gates in mold design, the advantages and disadvantage to using fan gates, and how different gate sizes impact overall filling behaviors, injection pressures, and packing distribution. Import and mesh both part and gate. Apr 3, 2023 · The fan gate is a wide edge gate with a gradual change in thickness and a large filling area that allows the melt to fill large parts quickly. The fan gate can also be used to spread out the flow pattern on thin material to help minimize the possibility of flow lines. The pin (in pink) fixed to the lower sector moves the upper adjacent sector to open position. The gate consists of several sectors. A fan gate is an evolution of the edge gate design, featuring a wider opening that spreads the material flow at a broader angle into the cavity. Apr 3, 2024 · How can a fan or flash gate be modeled in Moldflow and which is the best mesh type? For a 3D mesh: Model the gate directly into the CAD part. Jun 20, 2018 · The gate consists of several sectors. Its sloped bottom minimizes alterations in the cross-sectional flow front. Raise the lowest sector (in violet) to open the gate. Warpage and dimensional stability are very important for large parts, so the fan gate allows the melt wave front to fill the cavity evenly for large parts. . The gate consists of several sectors.
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