The method of controlling the shrinkage of plastic bucket

- May 10, 2020-

Plastic bucket is a common product for export packaging. The quality of this product is very important. Once there is a product problem, it will have a very serious impact on the efficiency of enterprises. Today we will introduce how to control the shrinkage of plastic bucket.

The effect on the shrinkage of plastic bucket mainly depends on the plastic structure! For example, the shrinkage of thick wall plastic parts is larger than that of thin wall plastic parts (but the shrinkage of 1mm thin wall plastic parts is larger than 2mm thin wall plastic parts, which is due to the increase of resistance of melt in the cavity); the shrinkage of plastic parts with inserts is smaller than that without inserts; the shrinkage of plastic parts with complex shapes is smaller than that of simple shapes.

The shrinkage rate of the height direction of the plastic part is generally smaller than that of the horizontal direction; the shrinkage rate of the slender plastic part in the length direction is smaller; the shrinkage rate of the length direction of the plastic part is smaller than that of the thickness direction; the shrinkage rate of the inner hole is larger and the shrinkage rate of the shape is smaller