Moldflow results:
Filling time results: If there are still some areas that are not filled with plastic melt at the end of set injection time, this will visually appear as unfilled blank areas in filling time results graph. This indicates that melt failed to reach these locations within prescribed time, resulting in short shots.
Pressure results: Pressure at filling end is too low, which means that melt has lost enough driving force when it reaches these areas and cannot complete complete filling of cavity, thus causing short shot defects.

 

Moldflow results:
Flow front temperature results: When temperature in certain areas is significantly lower than suitable processing temperature of plastic, viscosity of plastic melt will increase significantly and fluidity will decrease sharply, causing flow of melt in these areas to slow down or even stagnate. These low temperature regions are clearly visible in flow front temperature results plot.
Velocity result: In velocity result graph, you can intuitively see area where melt flow velocity slows down significantly or even approaches zero, which directly reflects location and severity of stagnation phenomenon.

Moldflow results:
Flow front results: In display of flow front, if you see that melt front presents a narrow, high-speed jet-like shape instead of advancing uniformly and smoothly to fill cavity, it indicates that a jet phenomenon has occurred.
Velocity results: Areas of excessive local melt velocity, usually where ejection occurs. High velocity peak areas in velocity results plot provide an accurate indication of location and extent of injection.

 

Moldflow results:
Temperature results: Temperature distribution on the surface of mold cavity is uneven, and there are local supercooled areas. In temperature results map, these supercooled areas appear to be significantly cooler than surrounding areas. Supercooling will lead to inconsistent flow rates of melt on cavity surface, resulting in flow marks.
Pressure results: Uneven pressure distribution may cause changes in flow rate and filling sequence of melt in cavity, thereby causing flow marks. Areas with large pressure differences in pressure results plot may be related to where flow marks occur.

Moldflow results:
Temperature results: Temperature results graph shows areas where local temperature is too high, exceeding temperature range that plastic material can withstand. These high temperature areas can easily lead to degradation and burns of plastic.
Shear rate results: Shear rate is too high in some areas. Plastic melt will generate excessive heat due to strong friction and shear in these areas, causing temperature to rise and causing burns. In shear rate results plot, areas of excessive shear rate require special attention.

Moldflow results:
Flow front results: A weld line forms when two or more melt fronts meet and merge. In flow front result plot, you can clearly see convergence point of these melt fronts, which is location of weld line.
Temperature results: Temperature at weld line is usually relatively low due to heat loss from melt front and incomplete fusion. In temperature results plot, location of weld lines at low temperatures can be identified.

Moldflow results:
Pressure results: Areas where local pressure drops suddenly. Gas easily accumulates in these low-pressure areas to form bubbles. Pressure valley areas in pressure results plot may be where bubbles are generated.
Filling time results: Uneven filling may cause melt in some areas to wrap gas for too long, and gas cannot be discharged in time, thus forming bubbles. By analyzing filling time results, location where bubbles may occur can be inferred.

Moldflow results:
Shear rate results: When shear rate exceeds upper limit allowed by material, it indicates that plastic melt is subjected to excessive shear in these areas. In shear rate results plot, areas of high shear rates that exceed limits of material are where excessive shear may occur.

Moldflow results:
Volume shrinkage results: Volume shrinkage results chart visually shows degree of shrinkage of different parts of product. Areas with large shrinkage differences indicate existence of uneven shrinkage problems, which may lead to dimensional deviation and deformation of product.

Moldflow results:
Volume shrinkage results: In volume shrinkage result chart, areas with excessive local shrinkage will appear as obvious shrinkage depressions, which correspond to location of shrinkage dents.

 

Moldflow results:
Warpage results: Warpage results directly display deformation amount and deformation direction of product in the form of three-dimensional graphics or numerical values, and can clearly point out specific situation of warpage of product.
Uneven cooling results: Uneven cooling will lead to inconsistent shrinkage in different parts of product, causing warping. Areas of uneven temperature distribution can be seen in cooling results plot, which may be related to occurrence of warpage.
Uneven shrinkage results: Areas with large shrinkage differences shown in volumetric shrinkage results are also important factors that may cause warpage.
In summary, through in-depth analysis of results provided by Moldflow, various molding defects can be accurately diagnosed, a strong basis can be provided for optimizing mold design and injection molding process, thereby effectively reducing or eliminating these defects, improving product quality and production efficiency.