The copper-holmium alloy has light red metallic luster and massive ingot shape. The content ratio is holmium (H0): 10% or 15%, and the remaining amount is mainly copper.
As master alloy, copper-holmium alloy is added into copper alloy furnace liquid to improve its performance. Generally, the content of holmium in copper alloy reaches 0.04%, and the content of rare earth can be controlled according to their special conditions.
Copper-holmium alloy is added by using common deoxidizer and other additives, then graphite bell jar (iron bell jar) is pressed into the furnace liquid, and slightly swims around to prevent rare earth segregation, so that rare earth diffuses rapidly and evenly into the melt.Copper-holmium alloys should be stored in argon as far as possible and sealed in dry places at room temperature to avoid prolonged or repeated exposure of copper-holmium alloys.