27-09-2014, 02:24 PM
Abstracts: Rotational molding is a cost effective way of producing both large and small plastic parts. By using a variety of materials such as, linear low density polyethylene It is essential to have a good quality mold, either cast or fabricated. The mold is mounted on the machine, which has 3 different stations; loading, heating and cooling. The process was applied to plastics in the 1940s but in the early years was little used because it was a slow process restricted to a small number of plastics.this process is more economical for small production than any other conventional manufacturing process. It has a huge amount of flexibility according different products ,so it is possible to produce multilayer products ,as the molds are inexpensive , no materials wastage and manufacturing costs are smallerit gives more profit .