What are the common problems with solid plastic bottle blow molding?

What are the common problems with blow molding of solid plastic bottles? Food plastic bottle manufacturers below to introduce to you:

Solid plastic bottles often have some quality problems during blow molding. These defects are negligible if we can control its molding process.

Part of the plastic bottle will appear white and excessively stretched. This is because the temperature attitude of this place or the pre-blowing is too early, and it hits the stretching rod.

Others will have wrinkles in the bottom of the bottle, the temperature at the bottom is too high, and the pre-blowing too late pre-blowing pressure is too low, and the flow is too small. The overall thickness of the plastic bottle is thick and thin. This phenomenon accelerates the pre-blowing time, increases the pre-blowing pressure, and increases the gas flow of the plastic bottle. What is the whitish bottom of the plastic bottle? The preform of the plastic bottle is too cold, excessively stretched, pre-blowing too early or the pre-blowing pressure is too high.

There is a magnifying glass at the bottom of the bottle, and there is too much material at the bottom of the bottle. Pre-blowing is too late, pre-blowing pressure is too low. The entire plastic bottle does not look so transparent and turbid, because the solid plastic bottle does not cool enough. There is also an eccentricity in the bottom of the plastic bottle, which is related to the temperature, stretching, pre-blowing, high-pressure blowing of the plastic preform.