采用原始的焊接方式焊接筛网式推进剂管理装置的收集器合格率低、可靠性差。为此,采用纯钛箔作为过渡层进行了不锈钢筛网与钛合金支压板的电阻缝焊试验以及随后这两者与钛合金骨架的电子束焊试验,然后进行了地面力学环境下的振动试验,以验证焊接方式改进后收集器的可靠性。焊接试验结果表明,纯钛箔过渡层一方面可以大幅降低筛网在电阻缝焊时的焊接热量,有效地减小筛网的热变形;另一方面可以在电阻缝焊后形成牢固、封闭的纯钛/不锈钢筛网焊缝过渡区,有效地增加电子束焊时筛网的变形抗力,从而使得焊接后试样的合格率和性能大幅提高。振动试验结果表明,焊接方式改进后收集器的可靠度置信下限从0.90增加到了0.96。 Collectors using the original welding method of screen-type propellant management devices have low qualification rates and poor reliability. To this end, the use of pure titanium foil as a transition layer of stainless steel mesh with titanium alloy backing plate resistance welding seam test and then the two with the titanium alloy beam electron beam welding test, and then under the ground mechanics environment vibration test To verify the reliability of the harvester with improved welding methods. The results of the welding test show that the pure titanium foil transitional layer can greatly reduce the welding heat of the screen during the resistance seam welding on the one hand and effectively reduce the thermal deformation of the screen mesh; on the other hand, it can form a firm and closed Pure titanium / stainless steel mesh weld transition zone, electron beam welding effectively increase the deformation resistance of the screen, so that after welding the sample pass rate and performance significantly increased. Vibration test results show that the reliability of the collector with improved welding method has increased from 0.90 to 0.96.