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通过试验认为微束等离子焊接钛合金薄板的保护问题,关键在于控制施焊时焊缝处于700℃以上的加热范围,和700℃到400℃的冷却时间。并论证了以氧的污染层厚度作为钛合金焊接污染程度判据的合理性。本文采用电子探针法对氧污染层厚度进行了测定,求出污染方程。从而。使微束等离子焊接钛合金薄板的污染问题,可通过调整焊接规范进行控制。
The key to controlling the protection of micro-beam plasma welding titanium alloy plate through the test is to control the welding seam to be in the heating range above 700 ℃ and the cooling time from 700 ℃ to 400 ℃. And the rationality of using the thickness of oxygen pollution layer as the criterion of titanium alloy welding pollution degree is demonstrated. In this paper, the electron probe method was used to measure the thickness of oxygen contamination layer, and the pollution equation was obtained. thereby. Micro-beam plasma welding titanium alloy sheet pollution problems can be adjusted by adjusting the welding specifications.