| 摘要 |
887,304. Extrusionmachines. SZABADY, J., and DEMETER, J. Sept. 8, 1958 [Sept. 6, 1957], No. 28771/58. Class 87(2). [Also in Group VIII] A thermosetting resin is extruded by two conical screws 14, 15 having meshing left and right-handed flights through an adjustable slot 17. The extrusion cylinder is heated by fluid in bores 19.
|
