The plastic mold is sufficiently filled

Second, the possible cause of the problem

(1) The plastic mold is sufficiently filled.

(2). Stop valve does not work properly.

(3) of plastic is not completely dry.

(4) The pre plastic or injected too fast.

(5) Some special materials, special equipment manufacturing applications.

Third, the remedies

(A). Increase the shot weight.

(2). Increase the injection pressure.

(3). Increase the screw forward time.

(4) Reduce the melting temperature.

(5). Decrease or increase the injection speed. (For example, the class of non-crystalline plastics to increase the rate of 45%).

(6) Check the non-return valve is cracked or not functioning.

(7) should be based on drying conditions to improve the characteristics of plastic, so that the plastic completely dry.

(8). Appropriately reduced screw speed and back pressure increase, or decrease the injection speed.

Low precision plastic molding size

Characteristics of injection plastic molded parts defects

First, the injection plastic molding process the weight changes more than the size of the plastic mold, injection plastic molding machine, plastic combined production capacity.

Second, the possible cause of the problem

(1) Enter Injection plastic cylinder uneven.

(2). Injection cylinder temperature or range of fluctuation is too large.

(3) Injection plastic molding machine capacity is too small.

(4). Injection pressure instability.

(5) The screw reset unstable.

(6). Operational time change, solution viscosity inconsistent.

(7). Injection speed (flow control) unstable.

(8) Use of the plastic mold is not suitable for plastic varieties.

(9) Considering the plastic mold temperature, injection pressure, speed, time and packing of the product so.