Cyclic thermal and mechanical loads on shot sleeves in service can lead to a variety of failures including washout under the pour hole, longitudinal and radial deformation that cause plunger tip sticking and wear, gross cracking and heat checking.
These measurements were made directly below the pour hole at a distance of 5 in.
A section of the sleeve halfway between the pour hole and the platen was chosen for analysis.
The simulation was performed for a section of the sleeve halfway between the platen and the pour hole and corresponded to the section of the sleeve in the experiment that was 5 in.
Comparisons of the maximum distortion in the commercial sleeves were made and it was determined that there was not much appreciable difference in maximum distortion between the thin and the thick sleeve at a section halfway between the pour hole and the biscuit.