Mirco Blog

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. […]

By |January 3rd, 2018|Mirco Blog|0 Comments

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: […]

By |January 3rd, 2018|Mirco Blog|0 Comments

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); […]

By |December 1st, 2017|Mirco Blog|0 Comments

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:

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By |December 1st, 2017|Mirco Blog|0 Comments

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 […]

By |November 1st, 2017|Mirco Blog|0 Comments

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: […]

By |November 1st, 2017|Mirco Blog|0 Comments

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 […]

By |October 4th, 2017|Mirco Blog|0 Comments

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. […]

By |October 4th, 2017|Mirco Blog|0 Comments

Optimize design to avoid Air Cavitation, Air Bubble and Burn Mark

As for product structure and mold design. Optimize mold exhausting scheme, and exhausting channel should be particularly set at confluence of front materials of plastic melt in the cavity; […]

By |October 4th, 2017|Mirco Blog|0 Comments

Injection molding crazing issue

Crazing is silvery white filamentous speckle occurring on the surface or near-surface of injection products along the direction of melt flow. It is resulted from the moving of gas in the resin which is then stored in between the melt and surface wall of cavity and subsequently crushed. […]

By |September 6th, 2017|Mirco Blog|2 Comments