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 parking brake is made up of a series of steel cables that run from the rear brakes to a pedal or lever by the seat of the driver. When the driver activates the brake, the cables pull taut, bringing the brake pads into contact with the surface of the brake and stopping the car or preventing it from moving.