During the production of beryllium copper tube materials, to address the work hardening phenomenon that occurs during the cold deformation process of the materials, annealing treatment (i.e., heating at 500℃ to 650℃, holding for 3 to 5 hours, and then cooling in the furnace) is commonly employed. The results of this experiment indicate that heating at 500 to 650℃ and using air cooling or water cooling can also achieve the desired effect and improve the furnace utilization rate. Additionally, when QBe2 beryllium copper alloy is heated at 700℃ to 750℃ for 1 hour and then cooled with water, the softening effect is even better.

Although the solution treatment temperature is relatively high (700 - 750℃), the surface is prone to oxidation and the grains are prone to grow. However, the experimental results show that, when treated by conventional annealing, the heating temperature is lower but the holding time is longer (3 - 4 hours). The amount of surface oxides is more than that produced by short-term high-temperature heating. On the other hand, high-temperature heating results in coarser grains than those heated at low temperatures. The test indicates that the grain size can be controlled by process conditions and kept within the specified range. Based on the changes in microstructure and properties under different cooling conditions obtained from this experiment, the material production department can carry out cold processing during the production process.