ROLL FOR MELT EXTRUSION SHAPED FORMING, ROLL ASSEMBLY FOR MELT EXTRUSION SHAPED FORMING, AND METHOD FOR MELT EXTRUSION FORMING

摘要

PROBLEM TO BE SOLVED: To provide a roll for melt extrusion shaped forming capable of achieving a sufficient improvement of transferability.SOLUTION: A roll 1 for melt extrusion shaped forming which is used in the melt extrusion forming of thermoplastic resin includes a roll body portion 10 inside of which is provided with a heat transfer medium flow channel 11, and an amorphous metal melt spray coating layer 13 that covers the surface of the roll body portion 10. The roll body portion 10 is made of a metallic material having a thermal conductivity of 40 W/m K or more and 100 W/m K or less, and the melt spray coating layer 13 is made of an amorphous metal having a thermal conductivity of 20 W/m K or less.