How to deal with the dragging during plastic electroplating?
During plastic electroplating, the electroplating surface of the mold cavity looks very bright, but there will also be the problem of dragging on transparent injection molded parts, which makes many people puzzled.
In fact, the bright mold electroplating is not necessarily smooth, and the friction between it and the hot injection molded parts is actually very large. Usually, spraying mold release agent is not allowed when producing transparent parts, so the hot injection molded parts feel like they are stuck to the mold, and the longer the mold is produced, the more serious this feeling is. Because during plastic electroplating, the oil stains immersed in the metal surface of the mold will become less and less, and the glue stains left by the injection molded parts will also increase. Therefore, the friction becomes greater and greater, and the dragging problem is generated. If the mold ejection angle is insufficient, it is more likely to cause the dragging of the injection molded parts.
In order to reduce the friction between the injection molded parts and the mold, we only need to use the diamond paste used for polishing the mold to wipe the position of the mold dragging. This can not only remove the glue stains on the mold electroplating, but also allow a small amount of oil stains to penetrate into the metal. The mold surface becomes smooth again, and the dragging problem can usually be solved. Many junior technicians generally do not dare to do this, fearing that the mold will be damaged. In fact, during plastic electroplating processing, you only need to use cotton dipped in diamond paste to rub the mold, and do not use cloth to wipe it, to avoid scratching the mold.