Method for gas replacement before brazing of small-scale gas cylinder
A gas replacement and gas cylinder technology, which is applied in welding equipment, metal processing equipment, manufacturing tools, etc., can solve the problems of bottle confusion, bottle scrapping, brazing furnace cooling down, parking and troubleshooting, etc.
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[0015] A gas replacement method before brazing of a small gas cylinder: after the bottle body is assembled, it is carried out before being placed on the high-temperature-resistant mesh belt chain in the bottle-entry area of a channel-type atmosphere protection brazing furnace. Such as figure 2 shown, including the following steps:
[0016] 1) Remove the assembled bottle body 3 from the conveying line.
[0017] 2) Put the bottle body 3 upright.
[0018] 3) Insert the slender nozzle 2 of the air gun from the 3.5mm hole on the valve seat 1 to the bottom of the bottle body 3.
[0019] 4) Turn on the switch of the gas filling gun, put the inert gas under pressure into the bottle body 3, turn off the gas filling gun after a few seconds and pull it out from the hole.
[0020] 5) Place the bottle body 3 that has completed the gas replacement on the high-temperature-resistant mesh belt chain in the bottle-entry area of the channel-type atmosphere protection brazing furnace.
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