IMPROVED FOUNDRY DECELERATION APPARATUS

摘要

An improved apparatus for decelerating a piston (12) and impacting rod (13) assembly within a single stroke foundry impactor (10) utilizing a non-metallic deceleration piston (20) slidably positioned within a pressurized deceleration chamber (19) mounted proximate the end of the bore containing the impactor piston (12) and impacting rod (13) assembly. The deceleration piston (20) is biased towards the impactor piston (12) by pressurization of the deceleration chamber, such that upon a stroke of the impactor, the residual kinetic energy of the piston and impacting rod assembly is absorbed by the biased deceleration piston.