The plastic float material to a good variety, but can produce plastic foam ball plastic material only several plastic float in the hollow plastic ball mostly, but plastic solid ball can float on water, one is to produce plastic solid ball there is through the mold and production process need to adjust the ratio of water light plastic materials, the internal plastic solid ball produced larger bubbles, the bubble number reached a certain number of plastic solid ball will float on the water, but due to the bubble size and the number of plastic solid balls in a not very good control, so the process for production of plastic floating ball adjustment basically very few manufacturers to the commonly used plastic solid floating ball or PP plastic and PE plastic raw materials to produce plastic solid floating ball, this two kinds of raw materials the proportion of water is smaller than that of about 0.91, so this The kind of raw materials produced by the plastic float or to meet part of the needs of customers, hollow plastic balls can also be used as a floating ball, but also for a wide range of application in various fields of chemical industry, metallurgy, pharmaceutical, food and other auto parts, the production process is used to produce blow molding process the disadvantage is the diameter of the ball, the accuracy is not high, the surface finish is not enough, so far only a few plastic foam ball plastic material can produce plastic foam ball, a PP plastic can produce PP plastic foam ball, a HIPS can produce PS plastic foam ball, a PA material can produce PA plastic foam ball, plastic ball foaming process of injection molding machine special needs to produce, is a plastic foaming agent added in a certain proportion of plastic raw materials in high temperature, and then in the injection molding machine under the action of The formation of foam and foam, gas is plastic ball, the plastic foam ball is mainly used in the automotive industry.