METHOD FOR REMOVING URETHANE FROM METAL-URETHANE COMPOSITE MATERIAL

摘要

[Problem] To provide a method for removing urethane from a metal-urethane composite material with high work efficiency and at a shorter work time. [Solution] With regard to a composite material (metal-urethane composite material) having a core bar and a coating layer containing a urethane resin formed on the surface of the core bar, this method for removing the coating layer containing the urethane resin (method for removing urethane) from the composite material is characterized by involving a first step in which the metal-urethane composite material is left in water or oil heated to a predetermined temperature for a predetermined time, and a second step which is carried out after the first step and in which the metal-urethane composite material is removed from the water or oil and the coating layer is removed within a predetermined time.