WHAT IS THE DIFFERENCE BETWEEN EXTRUSION AND INJECTION MOLDING?
Extrusion molding is a manufacturing process used to forming a long ‘tube like’ shape, where molten plastic is pushed through a two-dimensional die opening and and cut at equal intervals at the end stage. Injection molding is a manufacturing process where molten plastic is injected into one or more cavities in a three-dimensional mold. This mold opens and closes as parts are formed and purged from the mold cavity.
Extrusion molding is similar to injection molding except that a long continuous shape is produced.