multi shot plastic wheel mold

YUEYI Mold, China experienced 2k mold maker, quality offer 2 component rubber replacement tire mold, multi shot plastic wheel mold, two colour plastic rim wheel tire mold, rotary mold plastic wheels for snapper

Injection products color and luster defect cause analysis:

Typically, injection molded products surface gloss is mainly determined by the type of colorant and plastic mold surface finish. But there are also some other reasons causes injection molded products surface color and gloss defects. Causes and solutions for this analysis are as follows:

1. Poor mold finishing, mold cavity has rust and bad air venting, etc
2. Mold injection system is defective. Cold slug well and the main runner should be increasing. And polishing the main runner and gate is needed.
3. Plastic melt and mold temperature is low, partial heating can be considered if necessary
4. Working pressure is too low, too slow, insufficient injection time, lack of back pressure, resulting in poor compactness cause the surface

If you’re still looking for the good bi material mower wheels mold maker in China, we can be your another good choice.

Lucia

lucia@yueyimold.com

double component AC temperature flap mold

YUEYI Mold, China experienced 2k mold maker, quality offer double component AC temperature flap mold, turnplate AC mixing flap mold, co injection heat mix flap, multi component recirculation air flaps mold

Resulting in uneven color plastic molding products main reasons and solutions are as follows:

1. colorant diffusion is bad, this cause pattern tends to occur near the gate
2. Plastic or colorants poor thermal stability. To stabilize the product color must be rigidly fixed production conditions, in particular material temperature, quantity and production cycle
3. About crystalline plastics, try to make the various parts keep the cooling rate consistent.
4. The product design and gate style and gate position will influence the plastic filling, that will cause the plastic product some area off color.

If you’re still looking for the good rubber HVAC flap 2k mold maker in China, we can be your another good choice.

Lucia

lucia@yueyimold.com

multi color car damper mold

YUEYI Mold, China experienced 2k mold maker, quality offer bi material automotive damper mold, double injection plastic damper mold, multi color car damper mold, dual mold air motorized flaps

How to solve the plastic products short shot?

7. Check the check valve on the injection molding machine and the inner wall of the cylinder for wear,
said wear can cause severe injection pressure and injection volume loss
8. Increase the injection pressure
9. Increase injection speed
10. Increase shot weight
11. Increase injection barrel and mould temperature

If you’re still looking for the good rubber plastic damper auto mold 2k maker in China, we can be your another good choice.

Lucia

lucia@yueyimold.com

2 component defroster damper mold

YUEYI Mold, China experienced 2k mold maker, quality offer multi shot fresh air damper mold, double defrosting damper mold, 2 component defroster damper mold, gyratory ventilation damper mold

How to solve the plastic products short shot?

1. Increased melt flow
2. Fill the thick wall first to avoid retention, leading to premature hardening of the polymer melt
3. Increase the number of gates to reduce the flow ratio
4. Increasing the size of the flow channel, reducing the flow resistance
5. Make air venting at appropriate location to avoid air trap
6. Increasing size and quantity of air venting

If you’re still looking for the good bicolors defrost damper mold maker in China, we can be your another good choice.

Lucia

lucia@yueyimold.com

multi shot air conditioner deflector mold

multi shot air conditioner deflector mold

YUEYI Mold, China experienced 2k mold maker, quality offer multi shot air conditioner deflector mold, 2 component air vent deflector mold, pp tpe heater damper 2k mold, double colour AC temperature partition flap mold

What’s the main tips to make an optimal mould design?

Wall thickness
1. All kinds of plastic have a certain wall thickness range, generally is 0.5-4mm, when the wall thickness is more than 4mm, will cause too long cooling time, resulting in product furface shrink mark, then should consider changing the product structure.
2. Uneven wall thickness will cause the surface to shrink, and joint mark.

Strengthen rib
1. The rational application of the ribs can increase the rigidity of the product and reduce the deformation.
2. The thickness of strengthen rib must be ≤ (0.5 ~ 0.7) t product wall thickness, otherwise the surface shrinks.

If you’re still looking for the good bi material ac flap mold maker in China, we can be your another good choice.

Lucia

lucia@yueyimold.com