1. The hydrogen content of metallurgical grade tantalum powder has an impact on the properties of sintered tantalum wires. When the hydrogen content is higher than 200g /g, the surface quality of sintered tantalum strip is poor, with cracks and low sintering density.

2. For metallurgical grade tantalum powder with high hydrogen content, low-temperature vacuum heat treatment can be carried out for metallurgical grade tantalum powder. After pressing and sintering metallurgical grade tantalum powder, the quality of sintered tantalum strip is significantly improved