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.

Active Publication Date: 2013-08-21
CHANGZHOU XIAOGUO INFORMATION SERVICES
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If this happens before the brazing is completed, the assembled bottle will split; if it happens after the brazing is completed, the brazed bottle will be displaced on the high-temperature-resistant mesh belt chain, and the bottle will generally be scrapped. Seriously, it will be blocked due to the confusion of the position of the bottle body in the furnace, forcing the continuous operation of the brazing furnace to cool down and shut down for troubleshooting

Method used

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  • Method for gas replacement before brazing of small-scale gas cylinder
  • Method for gas replacement before brazing of small-scale gas cylinder

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Embodiment Construction

[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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Abstract

The invention relates to a method for manufacturing a 30-ounce disposable gas cylinder, in particular to a method for gas replacement before brazing of a small-scale gas cylinder. According to the method for the gas replacement before the brazing of the small-scale gas cylinder, after a bottle body is assembled, inert gases are added into the bottle body for the gas replacement technology before the assembled bottle body is placed on a high-temperature resistant band chain of a bottle feeding zone of a channel type environment protecting brazing furnace. According to the method for the gas replacement before the brazing of the small-scale gas cylinder, the bottle body is prevented from detonation caused by mixture of gas inside the bottle and gas inside the furnace in the process of brazing, so that scrapping of the bottle body and times of fault shutdown of a brazier are reduced and the percent of pass of product production and production efficiency are improved.

Description

technical field [0001] The invention belongs to the technical field of processing small gas cylinders, and in particular relates to a manufacturing method of a 30-ounce disposable gas cylinder. Background technique [0002] 30-ounce disposable gas cylinders are widely used abroad, and the most basic requirement for a production line is about 100,000 per month. The welding process of disposable gas cylinders in the prior art is completed in a continuous reducing protective atmosphere brazing furnace, such as figure 1 As shown, the specific operation method is as follows: place the assembled bottle body on the high temperature resistant mesh belt chain in the bottle feeding area, and place anti-rolling pads on the mesh belt chain, and hang the brazed part on the bottle body Oxygen-free copper wire required for brazing. The bottle body on the high-temperature-resistant mesh belt chain slowly enters the tunnel furnace body along with the driving wheel of the mesh belt chain, a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K1/20
Inventor 陈娟施昱
Owner CHANGZHOU XIAOGUO INFORMATION SERVICES
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