Fan Shida explained: how can ABS injection molded parts increase the brightness?

Injection molds

1. If the mold cavity is poorly processed, if there are scars, micropores, wear, roughness, etc., it will inevitably reflect on the plastic parts, so that the plastic parts are not shiny, in this regard, the mold should be carefully processed to make the cavity surface have a small roughness, and if necessary, it can be polished and chrome plated.

2. If there are oil stains and water stains on the surface of the cavity, or too much release agent, the surface of the plastic part will be dark and dull, so the oil and water stains should be removed in time, and the release agent should be used in limited amount.

3. If the demoulding slope of the plastic part is too small, the demoulding is difficult, or the demoulding force is too large, so that the surface gloss of the plastic part is good, in this regard, the demoulding slope should be increased.

4. If the mold exhaust is poor, too much gas stays in the model, which also leads to poor gloss, in this regard, the mold exhaust system should be checked and corrected.

5. If the cross-sectional area of the gate or runner is too small or changes suddenly, the melt is too affected by shear force when flowing in it, and it flows dynamically in turbulence, resulting in poor gloss, in this regard, the cross-sectional area of the gate and runner should be appropriately increased.

Injection molding process

1. If the injection speed is too small, the surface of the plastic part is not compact, and the gloss is poor, the injection speed can be appropriately increased.

2. For thick-walled plastic parts, if the cooling is not sufficient, the surface will be hairy and the luster will be dark, for which the cooling system should be improved.

3. If the holding pressure is insufficient, the holding time is short, so that the density of the plastic parts is not enough and the gloss is poor, in this regard, the holding pressure and holding time should be increased.

Founded more than 10 years ago, based in Dongguan, the youngest city in China's Pearl River Delta, Fan Shida Mould has become a professional supplier of all-round solutions in the field of precision multi-cavity after more than 10 years of stable development.