The effects of double coating on the pores of lime titania type stainless steel electrode are studied with high speed cinecamera, oscillograph, optical microscope, SEM with EDS, etc.

采用平板堆焊、高速摄影、波形、光学金相、扫描电镜测试方法，研究了双层药皮对钛钙型不锈钢焊条气孔的影响。