harvey process definition

  • others:
    • an activity of hardening the facial skin of steel, as armor plates, invented by Hayward A. Harvey of New Jersey, consisting within the additional carburizing for the face of an item of reasonable carbon metal by subjecting it toward action of carbon under long-continued pressure at a rather high temperature, then to a violent chilling, as by a spray of chilled water. This technique provides an armor dish a thick area of extreme hardness sustained by product gradually reducing in hardness toward unaltered soft steel at the back.
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