CN102148127A - 陶瓷金卤灯电极插入镶嵌式对焊结构 - Google Patents

陶瓷金卤灯电极插入镶嵌式对焊结构 Download PDF

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CN102148127A
CN102148127A CN 201110095731 CN201110095731A CN102148127A CN 102148127 A CN102148127 A CN 102148127A CN 201110095731 CN201110095731 CN 201110095731 CN 201110095731 A CN201110095731 A CN 201110095731A CN 102148127 A CN102148127 A CN 102148127A
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CN102148127B (zh
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朱惠冲
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Foshan Ningyu Technology Co ltd
Zhu Huichong
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Abstract

本发明公开了一种陶瓷金卤灯电极插入镶嵌式对焊结构，电极主杆为钨电极主杆、钼电极主杆、合金钨电极主杆或合金钼电极主杆，引出杆为铌引出杆或铌锆合金引出杆，电极主杆的一端插入引出杆一端的端面中，且电极主杆插入端的外壁与引出杆端面焊接连接。本发明结构合理，电极主杆与铌引出杆晶界全熔融结合，钼套与钨锆杆无缝无间隙，而且焊点强度高，折90°无断离分二截现象。由于钨杆与铌杆之间的紧密完美的连接，保证了产品电阻一致性非常高；有效地避免了目前激光焊因焊点凸凹不平、空心、虚焊等问题从而导致电极与陶瓷管封接时漏气的质量隐患。

Description

陶瓷金卤灯电极插入镶嵌式对焊结构
技术领域
本发明涉及一种陶瓷金卤灯电极结构。
背景技术
现有技术中陶瓷金卤灯电极采取传统的激光焊接方式，如图1所示：在电极主杆1与引入杆焊接接口处两圆端接触面不能保证完美的90°直角时，端部一定会有间隙，这时激光焊只能达到表面熔融，而如果采用大功率激光焊到中心，其结果由于金属在达到熔点时因重力的作用会蹋陷及铌熔液快速流动过程中夹入空气，无法达到对接作用，所以为了保持表面的原始状态，激光只能浅表面进行融结，会有如下结果：1、两端面合拢时的接触层密度无法达金属金相晶间结合的密度，导致电阻值大，电流长时间通其间冲击时会发热（由于残留空气接受热量时会发生膨胀；2、两端有大间隙时由于四周的围裹，中间的空隙中的空气遇到热量会产生爆炸。
发明内容
本发明的目的是为了克服现有陶瓷金卤灯电极复杂的激光焊缺点，工作效果好的陶瓷金卤灯电极插入镶嵌式对焊结构。
本发明采用的技术方案是：
一种陶瓷金卤灯电极插入镶嵌式对焊结构，包括电极主杆和引出杆，所述电极主杆为钨电极主杆、钼电极主杆、合金钨电极主杆或合金钼电极主杆，所述引出杆为铌引出杆或铌锆合金引出杆，其特征是：所述电极主杆的一端插入所述引出杆一端的端面中，且电极主杆插入端的外壁与引出杆端面焊接连接。
引出杆与电极主杆插接部位表面呈膨胀向上，引出杆膨胀处直径比引出杆部位直径大0.02mm~0.2mm。
电极主杆的插入端呈倒角形式。
本发明结构合理，电极主杆与铌引出杆晶界全熔融结合，钼套与钨锆杆无缝无间隙，而且焊点强度高，折90°无断离分二截现象。由于钨杆与铌杆之间的紧密完美的连接，保证了产品电阻一致性非常高；有效地避免了目前激光焊因焊点凸凹不平、空心、虚焊等问题从而导致电极与陶瓷管封接时漏气的质量隐患。
本发明用插入方式解决了传统电极的以下几种缺点。
1、          强度激光焊接电极在各种工艺过程中脆性大、强度低，在45°弯曲时即彻底断裂成二截。
2、          中间残留空气有膨胀老化或爆炸隐患。
3、          焊点凹蹋不平，严重影响灯管封结时的焊料均匀密实分布而产生漏气，使灯管早期夭折（常见缺陷）。
附图说明
下面结合附图和实施例对本发明作进一步说明。
图1为现有技术的焊接方式接口示意图；
图2为本发明结构示意图；
图3为本发明的焊接方式接口示意图。
具体实施方式
实施例1：
一种陶瓷金卤灯电极插入镶嵌式对焊结构，包括电极主杆1和引出杆2，所述电极主杆为钨电极主杆、钼电极主杆、合金钨电极主杆或合金钼电极主杆，所述引出杆为铌引出杆或铌锆合金引出杆，所述电极主杆的一端插入所述引出杆一端的端面中，且电极主杆插入端的外壁与引出杆端面焊接连接。
引出杆与电极主杆插接部位表面呈膨胀向上，引出杆膨胀处直径比引出杆部位直径大0.02mm~0.2mm。
电极主杆插入焊接时，在惰性气体保护下进行。
实施例2：
电极主杆的插入端呈倒角形式，使引出杆膨胀小，其余同实施例1。

Claims (3)

1. 一种陶瓷金卤灯电极插入镶嵌式对焊结构，包括电极主杆（1）和引出杆（2），所述电极主杆（1）为钨电极主杆、钼电极主杆、合金钨电极主杆或合金钼电极主杆，所述引出杆（2）为铌引出杆或铌锆合金引出杆，其特征是：所述电极主杆（1）的一端插入所述引出杆（2）一端的端面中，且电极主杆（1）插入端的外壁与引出杆（2）端面焊接连接。
2. 根据权利要求1所述的陶瓷金卤灯电极插入镶嵌式对焊结构，其特征是：引出杆（2）与电极主杆（1）插接部位表面呈膨胀向上，引出杆（2）膨胀处直径比引出杆（2）部位直径大0.02mm~0.2mm。
3. 根据权利要求1所述的陶瓷金卤灯电极插入镶嵌式对焊结构，其特征是：电极主杆（1）的插入端呈倒角形式。
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103295857A (zh) * 2012-03-05 2013-09-11 上海亚尔光源有限公司 一种能去除表面杂质改变材料结构电极的制造方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3676319A (en) * 1969-03-28 1972-07-11 Radiometer As Electrode, half cell and electrode component for the measurement of electromotive force
JPH0582088A (ja) * 1991-09-20 1993-04-02 Fujitsu General Ltd 多芯電極ランプ
CN101261922A (zh) * 2007-09-20 2008-09-10 复旦大学 陶瓷金卤灯电极及其制备方法
CN201994258U (zh) * 2011-04-18 2011-09-28 朱惠冲 陶瓷金卤灯电极插入镶嵌式对焊结构

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3676319A (en) * 1969-03-28 1972-07-11 Radiometer As Electrode, half cell and electrode component for the measurement of electromotive force
JPH0582088A (ja) * 1991-09-20 1993-04-02 Fujitsu General Ltd 多芯電極ランプ
CN101261922A (zh) * 2007-09-20 2008-09-10 复旦大学 陶瓷金卤灯电极及其制备方法
CN201994258U (zh) * 2011-04-18 2011-09-28 朱惠冲 陶瓷金卤灯电极插入镶嵌式对焊结构

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103295857A (zh) * 2012-03-05 2013-09-11 上海亚尔光源有限公司 一种能去除表面杂质改变材料结构电极的制造方法

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