Curing is a term in polymer chemistry and process engineering that refers to the toughening or hardening of a polymer material by cross-linking of polymer chains, brought about by electron beams, heat or chemical additives.esin curing [edit]. Despite the wide variety of thermoset resin formulations (epoxy, vinylester, polyester, etc.), their cure behavior is qualitatively identical.
The brake drum mounts on the axle or wheel hub, and some drums incorporate the hub. Most brake drums are made of solid cast iron, but there are also steel and aluminum drums with cast iron liners. The machined friction surface on all drums is cast iron.
The integral parts of a press brake includes the housing, brake, bolster plate, bed, ram, gibs, and drive. Main parts. 1  Housing or End Frames â The housing or end frames are heavily constructed to provide structural support for the machine. 2  Brake â The brake is the part which carries sheet metal the full length of the ram and bed without disrupting the forming process. 3  Bolster Plate â The bolster plate is secured to the press bed. 4  Bed â The bed is a ...