本发明公开了一种纯铼板的制备方法，该方法包括铼粉装模步骤：将铼粉装入设计好的模具型腔内并密封；热等静压处理步骤：将密封的装有铼粉的模具放置热等静压设备中进行热等静压处理，然后去除热等静压处理后的坯料外的模具；高温热处理步骤：将热等静压处理步骤得到的坯料在无氧条件下进行高温热处理；冷轧与退火热处理交替步骤：将高温热处理步骤得到的坯料进行多道次的冷轧处理，在多道次的冷轧变形过程中，对轧坯进行至少一次的退火处理，得到所需规格的纯铼板。纯铼板的规格可达到长500mm以上，宽500mm以上；本发明的方法无需对原料粉进行额外的处理并且无需使用粘结剂等，工艺相对简单、易控制、可进行规模化生产、成品合格率高。

The invention discloses a method for preparing a pure rhenium plate. The method includes the step of molding rhenium powder: filling the rhenium powder into a designed mold cavity and sealing; and the hot isostatic pressing step: placing the sealed rhenium with rhenium The powder mold is placed in a hot isostatic pressing equipment for hot isostatic pressing, and then the mold outside the blank after the hot isostatic pressing is removed; high temperature heat treatment step: the blank obtained in the hot isostatic pressing step is under oxygen-free conditions Carry out high temperature heat treatment; alternate steps of cold rolling and annealing heat treatment: the billet obtained in the high temperature heat treatment step is subjected to multi-pass cold rolling treatment, and during the multi-pass cold rolling deformation process, the rolling stock is subjected to at least one annealing treatment to obtain Pure rhenium plate of required specifications. The specifications of the pure rhenium board can reach more than 500mm in length and 500mm in width; the method of the present invention does not require additional processing of raw material powder and does not need to use binders, etc., the process is relatively simple, easy to control, large-scale production can be carried out, and the finished product is qualified The rate is high.