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Sealing process for ceramic discharge tube
The invention relates to a sealing process for a ceramic discharge tube. The process is characterized by comprising the following steps: step 1, preparing solder powder from solder; step 2, preparing a binder; step 3, mixing the solder powder with the binder to prepare a solder paste; step 4, printing the solder paste on the end surface of a metallized ceramic tube via screen-printing and carrying out drying; step 5, putting the metallized ceramic tube coated with the solder paste into a hydrogen furnace or a vacuum furnace, heating the furnace to 750 to 800 degrees so as to fuse the coated solder paste to form a solder layer, and then cooling the solder layer; step 6, cleaning the ceramic tube in order to wash away carbon black on the surface of the solder layer; and step 7, carrying out racking and welding according to a production process for a discharging tube. The sealing process for the ceramic discharge tube provided by the invention has the following beneficial effects: the solder powder is blended to form the solder paste which is printed on the metallized layer of the ceramic tube and fused at a certain temperature, so the solder layer on the metallized layer of the discharging tube is formed and is used for the welding of the discharging tube; the process is especially applicable to packaging of a special-shaped ceramic discharge tube.
Sealing process for ceramic discharge tube
The invention relates to a sealing process for a ceramic discharge tube. The process is characterized by comprising the following steps: step 1, preparing solder powder from solder; step 2, preparing a binder; step 3, mixing the solder powder with the binder to prepare a solder paste; step 4, printing the solder paste on the end surface of a metallized ceramic tube via screen-printing and carrying out drying; step 5, putting the metallized ceramic tube coated with the solder paste into a hydrogen furnace or a vacuum furnace, heating the furnace to 750 to 800 degrees so as to fuse the coated solder paste to form a solder layer, and then cooling the solder layer; step 6, cleaning the ceramic tube in order to wash away carbon black on the surface of the solder layer; and step 7, carrying out racking and welding according to a production process for a discharging tube. The sealing process for the ceramic discharge tube provided by the invention has the following beneficial effects: the solder powder is blended to form the solder paste which is printed on the metallized layer of the ceramic tube and fused at a certain temperature, so the solder layer on the metallized layer of the discharging tube is formed and is used for the welding of the discharging tube; the process is especially applicable to packaging of a special-shaped ceramic discharge tube.
Sealing process for ceramic discharge tube
LIN YINGZHENG (author)
2015-04-08
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
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