运载火箭贮箱焊接过程多余物控制研究
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摘要
针对贮箱生产过程的关键环节——焊接,开展焊前激光清洗技术研究,减少焊前表面处理所产生的多余物;同时开展焊后近封闭式打磨技术研究,提升背部焊漏打磨的多余物吸除效果,减少多余物残留。结果表明,焊前激光清洗过程无铝屑及粉尘等多余物产生,且清洗速度在400～600 mm/min时,所获焊缝外观、内部质量良好,且抗拉强度与人工刮削所获焊缝保持一致;焊后近封闭式打磨技术,有效吸除背部焊漏打磨所产生的多余物,打磨后无肉眼可见多余物。
Aimed at key links of tank production process-welding,researched laser cleaning technology before welding,reduced the remainder by surface treatment before welding;researched nearly closed sanding technology for welding at the same time,improved the suction effect of welding leakage sanding,reduced remainder residue. The results show that:there are no aluminum dust and other dust in the laser cleaning process before welding,when the cleaning speed is at 400～600 mm/min,the weld appearance and internal quality is good,and The tensile strength is consistent with the weld joints by manual scraping;nearly closed sanding technology after welding,effectively suck the remainder from welding leakage sanding,no remainder visible to human eye after sanding.
Aimed at key links of tank production process-welding,researched laser cleaning technology before welding,reduced the remainder by surface treatment before welding;researched nearly closed sanding technology for welding at the same time,improved the suction effect of welding leakage sanding,reduced remainder residue. The results show that:there are no aluminum dust and other dust in the laser cleaning process before welding,when the cleaning speed is at 400～600 mm/min,the weld appearance and internal quality is good,and The tensile strength is consistent with the weld joints by manual scraping;nearly closed sanding technology after welding,effectively suck the remainder from welding leakage sanding,no remainder visible to human eye after sanding.
引文
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[2]李文斌,王道虎,马飞,等.箭体阀门多余物预防与控制[J].航天制造技术,2014(4):50-56.
[3]司力琼,孙辰,徐晓东,等.航天地面产品多余物的预防与控制[J].现代工业经济和信息化,2017(9):60-61.
[4]王吉,韩树亮,郭克伟.管道多余物预防与控制[J].液压气动与密封,2017(10):46-48.
[5]许龙飞,麻高占,马利,等.运载火箭总装气密试验多余物控制方法分析[J].质量与可靠性,2017(4):6-9.
[6]王娟,周庆,李学敏,等.贮箱多余物控制及检测技术[J].质量与可靠性,2015(4):28-30.