Sheet machine, plastic raw materials performance and usage ( On)

Forming machine, sheet machine is the most important machine, plastic machinery is the key to the plastic molding. And according to the features and functions of plastic, by forming machine to make plastic formation of different forms of packaging products, to provide businesses and consumers to transport, storage, and so on. Different varieties of plastic has different properties and USES, combined plastic has the following properties and USES. ( 1) Quality of light. The density of general plastic similar to water, is about 1/6 of the density of steel. Plastic density is small, but lunch box machine mechanical strength than wood, such as glass, ceramics is much higher, even some plastic on the strength can be comparable to steel, this for reduce weight of vehicles, ships and aircraft has special important meaning. Because the quality is light, plastic is especially suitable for manufacturing light of daily necessities and household appliances parts. ( 2) Than the high strength. If the unit mass, to calculate the tensile strength of ( Called the specific strength) Some plastic, the plastic is not inferior to the metal, such as engineering plastics, carbon fiber reinforced plastic, etc. , it is far more than metal, can produce up to light some plastic cup machine through the system, the use of glass. So general plastics in addition to make commodity, can also be used in engineering machinery. Fiber reinforced plastics can be used as a load large structure parts, now in the car, the quality of the plastic accounts for about 1/10 of the car, and in the spacecraft plastic accounted for about half of the total volume of the spacecraft.