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US 2018/0320789 A1Published application
Wear ring for die-casting piston, and die-casting piston incorporating same
AssigneeExco Technologies Limited
InventorPaul Henry Robbins
Life of this patent
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Abstract
A wear ring for a piston of a die-casting apparatus comprises an annular body having a gap extending therethrough, the gap being configured to define at least two circumferentially offset pairs of circumferentially spaced apart facing surfaces. The annular body comprises an axial end face having at least one arc-shaped recess formed therein.
Claims22
A wear ring for a piston of a die-casting apparatus, the wear ring comprising:
- an annular body having a gap extending therethrough, the gap being configured to define at least two circumferentially offset pairs of circumferentially spaced apart facing surfaces,
- the annular body comprising an axial end face having at least one arc-shaped recess formed therein.
A piston of a die-casting apparatus, the piston comprising:
- a piston tip configured to push liquid metal through a piston bore;
- and
- a wear ring disposed on an outer surface of the piston tip, the wear ring comprising an annular body having a gap extending therethrough, the gap being configured to define at least two circumferentially offset pairs of circumferentially spaced apart facing surfaces, the annular body comprising an axial end face having at least one arc-shaped recess formed therein.
Dependencies are inferred from the claim text.