The invention discloses a preparation device and a preparation method for an ultra-pure high-temperature
alloy test bar, and belongs to the technical field of high-temperature
alloy metallurgy. According to the method, multiple purification measures such as adopting an inner and outer
crucible structure, limiting the use frequency of an inner
crucible, arranging an
impurity collection pit at the bottom of a mold shell, additionally arranging a filter sheet on a pouring cup, cleaning
ethanol of the mold shell and preserving heat at high temperature are adopted, and a multi-stage preparation method of mother
alloy bar pretreatment, mold shell pretreatment, loading and assembling,
smelting and refining and pouring is utilized. The
system solves the problems that in a traditional process, many
ceramic inclusions exist, in order to avoid introduction of the inclusions, a
crucible needs to be replaced frequently, consequently, the disassembling, beating and
sintering processes are tedious, the production efficiency is low, the detection period is prolonged, and the cost is increased. The prepared test bar is high in purity, stable in
mechanical property and suitable for performance detection and evaluation of high-temperature alloy materials in the fields of
aerospace, energy power and the like.