• sand casting
    Is a process by which molten metal is poured in sand molds to produce parts in an economical manner.
  • semi-solid casting
    Process in which the charge to the die casting machine is partially solidified. Also see rheocasting, thixocasting and thixomolding.
  • shaping
    The process in which the curing bladder is inflated inside a green tire.
  • shear strength
    The strength of a material or component against sliding failure along a plane that is parallel to the direction of the force.
  • shot
    That segment of the casting cycle in which molten metal is forced into the die. Also used to refer to the total volume of metal injected.
  • shot sleeve
    Cylindrical chamber which is partially filled with molten metal prior to injection in a cold chamber die cast machine.
  • shrinkage porosity
    Void space inside the casting due to dimensional reduction that accompanies the freezing (solidification) of metal passing from the molten to the solid state.
  • silicone
    Family of polymers made up of a silicon and oxygen backbone with organic side groups that attach to the silicon atoms. Also termed polysiloxanes.
  • slush casting
    See semi-solid casting.
  • softened water
    Water with low levels of calcium and magnesium ions.
  • soldering
    Adherence of molten metal to portions of the die.
  • solidus temperature
    Is the minimum temperature at which melting of a substance begins. Below the solidus temperature the material is homogeneous.
  • spreading
    The ability of a material to cover a surface after making contact. Also see wetting.
  • squeeze casting
    A method by which molten alloy is cast without turbulence and gas entrapment at extremely high pressure.