The basic requirements for injection molding process can be summarized into three points:

1. Appropriate plasticizing injection material

Suitable resins have good thermal homogeneity and appropriate dosage - neither too much nor too little! It's neither too hot nor too cold! ... without pollution Proper drying - if necessary Wait!

During forward injection, with appropriate press size (especially injection size), the machine will control the linear motion of the screw at the set speed... If we inject the same volume of plastic over a longer length, better control resolution can be achieved (for example, pressing 7 inches against oversized dimensions may result in a stroke of only 1 inch). Using longer strokes, the transfer ability of demolding molding will be better.

2. Balanced filling

It is necessary to avoid instantaneous stalling at the front of the melt - these hesitations can cause premature cooling of the resin and mold forming under stress and possible appearance issues... not to mention the significant changes in stalling and restarting, which can lead to inconsistency!

3. The inspection ring on the screw is in good condition

Good plasticization and SHOT size control are necessary. When using demolding molding, we have a transfer position that controls the amount of plasticizer that is not injected into the mold. If the check loop is not always checked, we may inject too little resin into the mold, which requires injecting too much resin in the second stage.

And this may reduce speed and pressure, which could lead to defects This usually leads technicians to adjust the injection volume, but later when the inspection ring is checked too early, it may cause additional material to be injected into the mold, which may result in excessive packaging of the mold. We cannot tolerate the performance of the stop ring too early or too late - a consistent and reliable inspection of the stop ring is necessary.