The technology of forming hard surface film on tantalumSpinneret in melting saltby anodization was studied. The experiment of applying in Chemical fibre silk spinning showed avery good result.

• 采用在高温熔盐中阳极氧化的方法处理或制喷丝头，使表面生成一层硬质膜。将该种带膜钽喷丝头用于化学纤维纺丝中，取得了良好的效果。