Necking process used for aluminum alloy liner of hydrogen storage cylinder
A technology of aluminum alloy and aluminum alloy tubes, which is applied in the field of closing technology, can solve problems such as property loss, casualties, gas cylinder leakage, etc., and achieve the effects of high first pass rate, good fatigue performance and wide application range
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Embodiment 1
[0023] A process for spinning and closing, which includes the setting of the following parameters of the CNC closing machine: preheating temperature, the feed amount of the CNC closing machine, the angle of the roller of the CNC closing machine, the temperature supplement during the closing process, aluminum alloy Tube thickness. The specific process includes the following steps:
[0024] (1) Measure the wall thickness of the aluminum alloy tube with a thickness gauge, so that the wall thickness of the aluminum alloy tube is 4mm;
[0025] (2) Adjust the angle of the rollers of the closing machine generally at 15°C;
[0026] (3) Position the aluminum alloy tube according to the requirements, start the numerical control closing machine, the speed is 300 rpm, start the ignition device, and heat the bottle liver to 350°C-380°C. Start after reaching temperature;
[0027] (4) During the start-up process, the feed rate is 10mm per step;
[0028] (5) When the mouth of the bottle i...
Embodiment 2
[0031] A closing process for the aluminum alloy liner of a hydrogen storage cylinder. The process is to close the hollow aluminum alloy tube on a numerical control closing machine, and optimize the closing process by adjusting the parameters of the numerical control closing machine. The process specifically includes the following steps:
[0032] (1) Measure the wall thickness of the aluminum alloy pipe with a thickness gauge, and the wall thickness of the aluminum alloy pipe is 3mm;
[0033] (2) Adjust the roller angle of the CNC mouth closing machine to 10°;
[0034] (3) Position the aluminum alloy tube, start the ignition device, heat the aluminum alloy inner gall of the hydrogen storage cylinder to 350°C, and start the numerical control closing machine to close it after reaching the temperature;
[0035] (4) During the start-up process, the feed rate of the CNC closing machine is 8mm per step;
[0036] (5) Carry out supplementary heating when the mouth of the bottle is clo...
Embodiment 3
[0038] A closing process for the aluminum alloy liner of a hydrogen storage cylinder. The process is to close the hollow aluminum alloy tube on a numerical control closing machine, and optimize the closing process by adjusting the parameters of the numerical control closing machine. The process specifically includes the following steps:
[0039] (1) Measure the wall thickness of the aluminum alloy pipe with a thickness gauge, and the wall thickness of the aluminum alloy pipe is 6mm;
[0040] (2) Adjust the angle of the rollers of the CNC mouth closing machine to 20°;
[0041] (3) Position the aluminum alloy tube, start the ignition device, heat the aluminum alloy inner gall of the hydrogen storage cylinder to 380°C, and start the numerical control closing machine to close it after reaching the temperature;
[0042] (4) During the start-up process, the feed rate of the CNC closing machine is 12mm per step;
[0043] (5) Supplementary heating is carried out when the mouth of the...
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