Wear ring for die-casting piston, die-casting piston incorporating same, and method of forming same

摘要

A wear ring for a piston of a die-casting apparatus comprises an annular body having a gap extending therethrough. The gap is configured to define at least two circumferentially offset pairs of circumferentially spaced apart facing surfaces. The facing surfaces of each pair are angled and configured to contact each other in a flush manner when the wear ring is circumferentially compressed.

主权项

1. 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 facing surfaces of each pair being angled and configured to contact each other in a flush manner when the wear ring is circumferentially compressed, wherein both of the facing surfaces of each pair define an angle with a radial line that bisects the gap between the facing surfaces, the angle defined by each surface being the same, and the angle is from about 1 degree to about 4 degrees, or wherein one of the facing surfaces of each pair defines an angle with a radial line that bisects the gap between the facing surfaces, and the angle is from about 1 degree to about 4 degrees.