5.  Which process is commonly employed in the production of plastic polymers?  a. Extrusionb. Sinteringc. Forgingd. Annealing

Which of the following process is used for the manufacturing of plastic.*a) forging processb) drawing processc) moulding processd) None of the thes

In the production of polymers, what is the purpose of the polymerization process?

Which of the following is used in the production of Plastic?*1 pointMercuryLeadVinyl chlorideNone of these

In the production of polymers, what is the purpose of the polymerization process? a. To reduce viscosityb. To increase densityc. To increase strengthd. To form long chains of monomers

The plastic i _ _ _ _ _ _ _ _ molding process is a manufacturing method for producing plastic parts. Before the process begins, an experienced mold maker creates the mold or tool used to make the part. The first step of injection moulding process is that p_ _ _ _ _ _, or small pieces, of plastic are fed from the hopper into a cylinder. After the plastic pallets are fed from the h_ _ _ _ _, a container shaped like a V into a cylinder, they are pushed along the cylinder by a rotating screw, and heated. The molten polymer is pushed by the ram through the n_ _ _ _ _ (a small hole) into the mould, and becomes hard. The soft plastic is injected through the nozzle into a shaped c_ _ _ _ _, an empty space, between the two halves of a mould. R_ _ _ _ _ _ _ _ _ moulding is a high-temperature, low-pressure plastic forming process which uses heat and rotation along two axes to produce hollow, one-piece parts. After the soft, warm plastic is pushed toward a nozzle by the ram, it is then i_ _ _ _ _ _ _ through the nozzle into a shaped cavity between the two halves of a mould. Injection moulding uses a r_ _ , a machine part used to force molten plastic or rubber material into a mould cavity. After a product is designed, usually by an industrial designer or an engineer, m_ _ _ _ _ are made by a mould-maker (or toolmaker) from metal, usually either steel or aluminium, and precision-machined to form the features of the desired part. With e_ _ _ _ _ _ _ _ moulding, hot melted plastic is pressed through a shaped hole to create a lengthy shaped plastic part.