High-pressure gas inflation welding device of metal containing cavity containing flammable and explosive agent
A technology of inflammable and explosive welding equipment, which is applied in the direction of auxiliary equipment, welding equipment, welding equipment, etc., and can solve the problems that are not suitable for high-pressure gas-filled welding of small metal cavities
Active Publication Date: 2017-05-10
北方特种能源集团有限公司西安庆华公司
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Problems solved by technology
Therefore, this method is not suitable for high-pressure gas-filled welding of small metal cavities.
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[0026] The present invention will be further described below in conjunction with the accompanying drawings and embodiments, and the present invention includes but not limited to the following embodiments.
[0027] The present invention provides a Figure 4 The device shown includes parts, components and mechanisms such as welding mobile positive electrode, gas-filled cavity, alignment mechanism, positioning mold, welding negative electrode, clamping mechanism, protective cover, workbench, high-pressure inflation system, welding unit, control system, etc. The resistance welding technology is used to realize high-pressure gas-filled welding of small flammable and explosive metal cavities.
[0028] The main features of this device are:
[0029] 1) Put the steel ball first, then inflate and weld
[0030] First put the steel ball on the step hole of the product inflation inlet. When inflating, the gas enters the product cavity through the gap between the steel ball and the step h...
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The invention provides a high-pressure gas inflation welding device of a metal containing cavity containing a flammable and explosive agent. A clamping mechanism adopts an anti-twist gas cylinder, and is connected with a locating fixture through a welding negative electrode; the metal containing cavity is fixed in the locating fixture; the welding negative electrode is connected with circulating cooling water; a gas inflation cavity body adopts a T-shaped joint, two direct connection ends of the T-shaped joint are connected with a gas inlet of the metal containing cavity and a welding movement anode respectively, and the side connection end communicates with a high-pressure gas inflation system; a steel ball is placed on a step hole of the gas inlet of the metal containing cavity, the high-pressure gas inflation system inflates the metal containing cavity through a gap between the steel ball and the step hole and the required pressure is reached; then the welding movement anode and the welding negative electrode act jointly to carry out welding sealing on the steel ball and the gas inlet of the metal containing cavity. The high-pressure gas inflation welding device can meet the gas inflation and plug welding requirements of the small metal containing cavity.
Description
technical field [0001] The invention belongs to the technical field of pyrotechnics assembly and relates to a welding device for a metal cavity. Background technique [0002] At present, in China, most of the high-pressure inflation of metal cavities containing flammable and explosive agents adopts the method of mechanical structure, that is, to install components such as check valves on such cavities to inflate. The structural parts on the product are used together with the product, and the structure is as follows figure 1 shown. [0003] This structure makes the product structure complicated, volume, quality increased, and cost increased. Most foreign countries use non-standard equipment to inflate the cavity first, and then put the steel ball to seal the inflation hole after reaching the required pressure, and then weld to seal the high-pressure gas in the metal cavity. The structure is as follows: figure 2 shown. [0004] This method needs to put the gas-filled weld...
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Patent Timeline
Login to View More IPC IPC(8): B23K11/00B23K11/36B23K37/04B23K37/00
CPCB23K11/00B23K11/36B23K37/006B23K37/04
Inventor 苏增尚李红梅孙安昌魏娟李俊杰邢康宁张伟王刚
Owner 北方特种能源集团有限公司西安庆华公司