CAJ | 학술논문

某相控阵雷达冷板对焊缝提出了气密性要求，为实现装配，还要求焊接后平面度公差不超过0.1mm。使用真空钎焊、激光焊、电子束焊方法分别对耐气压冷板进行焊接试验，对焊接变形及密封性检测的情况进行了分析，确定了满足冷板使用要求的焊接工艺方法，通过对焊接方法的改进，使形位公差、气密性指标均得到很好的保证，解决了该冷板焊接的技术难题。
모상공진뢰체랭판대한봉제출료기밀성요구，위실현장배，환요구한접후평면도공차불초과0.1mm。사용진공천한、격광한、전자속한방법분별대내기압랭판진행한접시험，대한접변형급밀봉성검측적정황진행료분석，학정료만족랭판사용요구적한접공예방법，통과대한접방법적개진，사형위공차、기밀성지표균득도흔호적보증，해결료해랭판한접적기술난제。
A new sort of cooling plate, pressure-resistant cooling plate, is proposed in the phased array radar. For its new filler in the plate, a higher requirement of air tightness is necessary. What’s more, its flatness tolerance after welding should be no more than 0.1mm so that a very thin PCB assembles onto the plate. In order to meet the requirement, three welding methods of vacuum brazing, laser welding and electron beam welding were carried out. By testing the welding deformation and air tightness, the advantages and disadvantages of the welding methods were compared. As a result, an optimized welding process was formed to solve the cooling plate welding technical problems.