Result Adviser

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Result Adviser

After the analysis has been finished, click Result Adviser on tree menu. It helps users to ascertain the analysis result, and provide simple solution for users. There are 6 common defects below, including short shot, air trap, weld line, degradation, hesitation and imbalance gates contribution.

Item

Define

Solution

Short shot

Cavity is not fully filled

Ensure sufficient injection amount

Increase injection flow rate

Increase mold temperature or melt temperature

Change gate location

Add additional gates

Use a different plastic material with higher MFI (Melt Flow Index)

Modify the thickness of cavity or the diameter of runner

Improve venting

Air trap

An air trap is formed by converging melt fronts trapping a small bubble of air

Change the gate location

Change the thickness of model

Weld line

Weld line is the line formed by two different melt fronts joining together with sharp angle during the filling stage

To move the weld lines, you can:

Change gate location

Modify part thickness

To diminish the appearance of the weld line, you can:

Increase mold temperature or melt temperature

Modify runner system design

Reduce runner diameter to take advantage of frictional heating

Degradation

Polymer degradation is a change in the properties of tensile strength, colour, shape, etc.

Any loss in chain length lowers tensile strength and is a primary cause of premature cracking for polymeric molecules.

Move gate location

Use longer filling time

Hesitation

Hesitation is the condition where the flow significantly slows down along a particular path. If the plastic flows too slowly and eventually stops that failed to fill the cavity completely, it is called short shot.

Increase injection flow rate

Increase mold temperature or melt temperature

Change gate location

Increase wall thickness where the hesitation occurred

Use a different plastic material with higher MFI (Melt Flow Index)

Imbalance gates contribution

Imbalance gates contribution means that the difference of material providing ratio of each gate are too much.

Change gate location

Change runner system design