基于InPb合金的非制冷焦平面探测器窗口低温焊接工艺研究

袁俊; 龚瑜; 冯江敏; 杨璇; 太云见; 何雯瑾; 朱琴; 普朝光; 黎秉哲

红外技术, 2017, 39 (7): 659, 网络出版: 2017-08-09

基于InPb合金的非制冷焦平面探测器窗口低温焊接工艺研究

Low Temperature Welding of Uncooled Focal Plane Detector Window Based on InPb Alloy

论文大纲

袁俊 ¹龚瑜 ²冯江敏 ¹杨璇 ¹太云见 ¹何雯瑾 ¹朱琴 ¹普朝光 ¹黎秉哲 ¹

作者单位

¹ 昆物理研究所, 昆明 6500223

² 昆明市中小企业服务中心, 昆明 650041

InPb焊料非制冷焦平面探测器探测器窗口低温焊接 InPb solder uncooled focal plane detector detector window low temperature welding

摘要

研究了采用纯度为 99.9%的 In70Pb30合金作为焊料片的低温焊接技术, 分析了焊接时候的影响因素: 焊料片的影响、升温速率、焊接温度、真空度, 通过采用甲酸对焊料片预处理去除氧化层, 在 215℃、5×10-7 torr的真空环境下进行了焊接, 焊接后的样品采用 X-ray、拉力测试系统、检漏仪测试了样品的孔洞率、焊接强度、漏率, 结果表明: 焊接后焊接区域合金均匀、无缝隙、孔洞率少、剪切力高、气密性好, 能够满足非制冷焦平面的窗口封接的气密性要求。

Abstract

The low temperature welding technology was studied by the use of the In70Pb30 alloy with 99.9% purity as welding pieces, the influencing factors during welding were analyzed: the influence of welding pieces, heating rate, welding temperature, vacuum degree, the welding pieces were pretreated by the use of formic acid to remove oxide layer, the welding was operated at 215℃, 5×10-7 torr under the condition of vacuum, the samples of after welding were characterized by X-ray, pull test system, leakage detector to test the holes, the welding strength, the leakage rate of the samples, the results indicate that: the good homogeneity of alloy, seamless, less holes, high shear force and good air tightness in welding area after welding, those good properties make the samples satisfy the need of the air tightness of the window sealing of uncooled focal plane.

参考文献

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袁俊, 龚瑜, 冯江敏, 杨璇, 太云见, 何雯瑾, 朱琴, 普朝光, 黎秉哲. 基于InPb合金的非制冷焦平面探测器窗口低温焊接工艺研究[J]. 红外技术, 2017, 39(7): 659. YUAN Jun, GONG Yu, FENG Jiangmin, YANG Xuan, TAI Yunjian, HE Wenjin, ZHU Qin, PU Chaoguang, LI Bingzhe. Low Temperature Welding of Uncooled Focal Plane Detector Window Based on InPb Alloy[J]. Infrared Technology, 2017, 39(7): 659.

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