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目前国内外尚没有镍磷合金镀管道的焊接内补口技术，本文介绍了采用不锈钢接头技术解决镍磷合金镀管道应用的技术问题，通过试验研究确定了不锈钢接头的经济长度。
At present, there is no welding technique of nickel-phosphorus alloy pipe in the world. This paper introduces the technical problems of using stainless steel joint to solve the application of nickel-phosphorus alloy coated pipes. The economic length of the stainless steel joint is determined through experimental research.