Oyodo Kasei explains [the mechanism of extrusion molding] *video explanation*
A clear explanation of the extrusion molding process in a video!
Extrusion molding is divided into five main processes. (1) The material fed into the extruder is heated and melted into a gooey state, then extruded towards the mold like "tokoroten" (a type of Japanese jelly). The materials vary in hardness; some are soft like rubber, while others are hard. (2) In the mold, the melted material from the extruder takes on the shape of the mold. (3) In a water tank, the extruded shape is cooled and shaped properly. (4) The formed products are transported by a take-up machine. Although it is called extrusion molding, it is actually being pulled. The dimensions are adjusted by varying the pull strength, similar to how gum stretches. (5) In the cutting machine, the products are cut to the desired length specified by the customer, or they may be rolled up and then cut. *For more details, please download the PDF or feel free to contact us.