how to solve injection parts stick to the mold
The injection parts stick to the mold, making it rather difficult for ejection. The causes thereof comprise: […]
How To Solve Sprue Sticking To The Mold
The condensed material of sprue sticks to the sprue of molds, which poses difficulty for ejection. […]
What Is Dark Spots Or Black Lines Of Plastic Parts ? And How To Solve
Color is normal on the surface of products, though black spots or lines occasionally occur. The dark spots or black lines are fundamentally caused by the thermal degradation of material or carbonization of impurities due to various factors. The raw material is mixed with impurities (such as impurities falling off when the operator is unripping [...]
What Is Aberration Of Plastic Parts? And How To Solve
Aberration refers to the discrepancy of color on the products wherein the tint is uneven. The causes whereof comprise: […]
How To Solve The Poor Glossiness Issue In injection Molding
1 Use plastics with sound glossiness (such as ABS and PP etc), appropriately add additives which can improve the glossiness of products, and reduce the content of volatiles in raw materials (such as lubricating agent); […]
The Poor Glossiness Problem In injection Molding
The products are provided with uneven surface glossiness and are even covered with shades. The causes whereof comprise: […]
The Overflow And Flash Issue In Injection Molding
During the injection and filling process, the plastic melt enters into the clearance of parting line,clearance of sliding surface of the slide, gap between inserts and holes of ejector pin which are related with mold cavity structure, and overflow thereby occurs […]
How To Solve The Overflow And Flash Issue In Injection Molding
There may be a variety of solutions, especially for some specific situations, but the general solutions include: […]
how to avoid Air Cavitation, Air Bubble and Burn Mark in injection molding
During the process of injection molding, due to the poor exhausting condition of molds, the water vapor in the melt, the air in cavity, the volatile gas from volatile substance in raw materials as well as the material decomposition gas either remain inside the products to form air bubble or are stored in between the [...]
Optimize molding technics to avoid Air Cavitation, Air Bubble and Burn Mark
As for molding technics. Air bubble or air cavitation may occur in the plastic parts due to improperly-controlled material temperature and mold temperature, overfast injection speed, overlow injection pressure, too large or too small quantity of injection, insufficient dwell, unbalanced or insufficient cooling etc. […]