Plastic Injection Molding Quiz

Pressure is maintained for a specified time to prevent back flow of melt and to compensate for the ………………… of melt during solidification.

• rigid in plastic

• increase in volume

• decrease in volume

• cooling in plastic

The clamps provide …………….. controlled motion and force to close and open the mold.

• accurate

• accurately

• separate

• separately

………………………. is the space inside a mold where the plastic forms the product.

• heat exchanger

• clamping unit

• cavity

• mold

The ………………… prepares to proper plastic melt and, via the injection unit, transfers the melt into the next component that is the mold.

• plasticator

• component

• clamping system

• hopper

An injection ………………. machine has three basic components : the injection unit, the mold, and the clamping system.

• molding

• mold

• to mold

• molded

The …………………. is the largest rated molding area the machine can hold closed under full molding pressure.

• clamping force

• molding area

• molding force

• clamping area

Mold is a complex…………………… devide that must be an efficient heat exchanger.

• modifiable

• programmable

• controllable

• diferentite

Plastic injection molding is the most common method of ………………….. parts made of plastic.

• product

• producting

• producted

• to product

Injection unit is a cylinder that contains a …………………….. together with …………., it provides the bearing surface where shear is imparted to the plastic materials.

• screw/screw

• plunger/mold

• bearing/screw

• mold/mold

………………… of the plastic beginning on the mold’s cavity wall.

• heating

• solidfication

• implementation

• flexibility