CN101850494B - Manufacturing method of internal bladder of annular titanium alloy gas cylinder - Google Patents
Manufacturing method of internal bladder of annular titanium alloy gas cylinder Download PDFInfo
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- CN101850494B CN101850494B CN201010177242XA CN201010177242A CN101850494B CN 101850494 B CN101850494 B CN 101850494B CN 201010177242X A CN201010177242X A CN 201010177242XA CN 201010177242 A CN201010177242 A CN 201010177242A CN 101850494 B CN101850494 B CN 101850494B
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- girth joint
- argon gas
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- 229910001069 Ti alloy Inorganic materials 0.000 title claims abstract description 56
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 19
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims abstract description 102
- 239000007789 gas Substances 0.000 claims abstract description 82
- 229910052786 argon Inorganic materials 0.000 claims abstract description 51
- 238000003466 welding Methods 0.000 claims abstract description 42
- 229910052751 metal Inorganic materials 0.000 claims abstract description 25
- 239000002184 metal Substances 0.000 claims abstract description 25
- 238000003801 milling Methods 0.000 claims abstract description 19
- 238000005242 forging Methods 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 20
- 239000007921 spray Substances 0.000 claims description 13
- 238000007789 sealing Methods 0.000 claims description 8
- 230000007306 turnover Effects 0.000 claims description 4
- 238000005530 etching Methods 0.000 claims description 3
- 239000004922 lacquer Substances 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 238000012545 processing Methods 0.000 abstract description 10
- 238000013461 design Methods 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 5
- 238000010438 heat treatment Methods 0.000 abstract description 3
- 230000007547 defect Effects 0.000 abstract description 2
- 230000001681 protective effect Effects 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 239000002131 composite material Substances 0.000 description 3
- 238000004080 punching Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000013536 elastomeric material Substances 0.000 description 2
- 238000003335 Production assurance Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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Abstract
The invention relates to a forming processing technology for an annular metal gas cylinder, in particular to a manufacturing method of an internal bladder of an annular titanium alloy gas cylinder, which comprises the following steps: (1) forging a titanium alloy plate to form two annular half-round tubes; (2) turning holes at the air inlet hole and air outlet hole positions of the annular titanium alloy half-round tubes; (3) welding an air inlet pipe nozzle and an air outlet pipe nozzle respectively on the turned holes in a vacuum argon filling protective chamber; (4) chemically milling the inner walls of the two annular titanium alloy half-round tubes to the required thickness; (5) welding the inner ring weld seam and outer ring weld seam of the two annular titanium alloy half-round tubes to form the sealed internal bladder; and (6) carrying out vacuum heat treatment. The weld seam has beautiful appearance, does not have welding defects such as air holes and has good high pressure resistant performance; the strength meets the design requirements; simultaneously the appearance of the internal bladder does not have deformation after welding, does not need correction, and meets the design tolerance requirement; and chemical milling is substituted for turning for the inner wall of the internal bladder to effectively solve the deformation caused by turning.
Description
Technical field
The present invention relates to a kind of manufacture method of metal ring gas cylinder forming processing technology, particularly a kind of internal bladder of annular titanium alloy gas cylinder.
Background technology
Ring gas bottle is the vitals in the cold spray of the spacecraft system, is to be used for storing compressed-air actuated energy storage unit, and the operating pressure height simultaneously as space product, requires the product high-strength light, and meet design requirement fatigue life.
As the vitals in the ring gas bottle--annular inner bag, once adopted elastomeric material to make, but since the intrinsic weakness of elastomeric material as aging, poor air-tightness easily, cause the service life of spacecraft short, be difficult to adapt to the development of space technology.Making internal bladder of annular titanium alloy gas cylinder with titanium alloy sheet through punching press, welding is current preferred plan.Fig. 1, Fig. 2, Fig. 3, shown in Figure 4 be the structure chart of existing internal bladder of annular titanium alloy gas cylinder, as seen from the figure, described internal bladder of annular titanium alloy gas cylinder is to be welded by two annular semicircle pipes 1,2, also be welded with air inlet pipe 3 and escape pipe 4 on described its bottle inner bag, described air inlet pipe 3 and escape pipe 4 are welded on the same annular semicircle pipe (as shown in Figure 1 and Figure 2) perpendicular to anchor ring, also can be obliquely installed (as shown in Figure 3, Figure 4) with anchor ring.
Patent No. 200610152961.X discloses a kind of manufacture method of metal lining composite ring gas bottle, may further comprise the steps: (1) TAl plate punching press that 2～5mm is thick forms two metal semi-rings, carry out vacuum heat at 650～730 ℃, to the metal semi-ring punching press school shape after the vacuum heat; (2) carry out hole flanging on two of a metal semi-ring diverse locations therein, hole flanging is milled processing; (3) be welded on entrance sleeve mouth and discharge connection mouth on the hole flanging respectively; (4) inner wall thickness to the 0.6～1.3mm of two metal semi-rings of turning processing; (5) the inside and outside circumferential weld of two metal semi-rings of welding forms the becket of sealing, X-ray examination, and the leak rate inspection is carried out vacuum heat at 550～630 ℃; (6) fibrage is wrapped on the becket of the sealing after the welding and obtains metal lining composite ring gas bottle; (7) place baking oven to be cured processing the metal lining composite ring gas bottle that winds, the parameter of setting baking oven is as follows: temperature is that 80～180 ℃, time are 0.5～3 hour.
Should be noted that at first that " metal semi-ring " should be described in this patent " circular ring metal semicircle pipe " or " cross section is the metal ring of semicircle pipe ", this part complete annulus of saying so on the whole, rather than semi-ring, the cross sectional shape of this annulus is the semicircle pipe.
This becket that patent step (1)～(5) are processed is an internal bladder of annular titanium alloy gas cylinder of the present invention.The welding difficulty of titanium alloy is to dissolve in heat affected area grain growth and the motlten metal hydrogen, oxygen, nitrogen and forms titaniferous compound and cause the weld seam embrittlement, and impression post weld heat treatment and welding process are the requisite measure that improves weldquality to the protection of holding the pond.And form in the circular ring metal pipe of sealing not to how welding the concrete scheme that proposes at the inside and outside circumferential weld of two endless metal semicircle pipes of the described welding of this patent step (5); and the protection that how to realize back of weld is the key of this production assurance; because the inwall of the endless metal pipe after the assembling is in the position that is closed; the gas shield backing plate of back of weld commonly used is difficult to be suitable for, and the appearance of weld of inner bag inner surface also is difficult to guarantee.In addition, the assurance of the roughness of its inner surface tradition adopts the 5-shaft linkage numerical control machined into, very easily causes the distortion of whole titanium alloy inner bag, is difficult to satisfy the instructions for use of spacecraft.
Therefore how to solve the protection at the butt welded seam back side in the welding process and be a difficult problem that perplexs the internal bladder of annular titanium alloy gas cylinder processing and manufacturing for a long time the processing of circular ring metal semicircle inside pipe wall.
Summary of the invention
Technical problem to be solved by this invention is, at the above-mentioned deficiency of prior art, and provides a kind of manufacture method of internal bladder of annular titanium alloy gas cylinder, and this method mainly solves the back of weld protection and endless metal semicircle inside pipe wall is processed existing problem.
The manufacture method of internal bladder of annular titanium alloy gas cylinder provided by the present invention is realized by following technical scheme.
A kind of manufacture method of internal bladder of annular titanium alloy gas cylinder may further comprise the steps:
(1) 0.5-6mm is thick TC4 plate forging and pressing form two titanium alloy annular semicircle pipes;
(2) in the car hole, inlet, outlet hole site of titanium alloy annular semicircle pipe;
(3) in vacuum argon filling protection chamber, the air inlet ozzle and the ozzle of giving vent to anger are welded on respectively on the hole of car system;
(4) inner wall thickness of two titanium alloy annulars of chemistry milling semicircle pipe is to 0.5-4mm;
(5) two titanium alloy annular semicircle pipe inner and outer ring weld seams of welding form the inner bag of sealing, and back of weld carries out back-protective with the servo-actuated cushion block of ejection argon gas during welding, and concrete steps are:
(5-1) weld outer girth joint earlier, one outer girth joint servo-actuated cushion block is set, the upper surface of described outer girth joint servo-actuated cushion block is and the outer consistent cambered surface of circumferential weld internal face of inner bag, described cambered surface is provided with the appearance of weld groove, be provided with a plurality of argon gas spray orifices in the described appearance of weld groove, one side of described outer girth joint servo-actuated cushion block is provided with argon gas and takes over, described argon gas is taken over and is communicated with described a plurality of argon gas spray orifices, and with flexible pipe connection argon gas source, the lower surface of described outer girth joint servo-actuated cushion block is provided with the wedge groove parallel with weld seam, during welding, to vertically be put by the weldering inner bag, by advancing or escape pipe is inserted in the annular inner bag, the sheet metal that has wedge surface with an end inserts inner bag by interior circumferential weld with described outer girth joint servo-actuated cushion block, and in the wedge groove of the outer circumferential weld servo-actuated cushion block lower surface of wedging and fix with outer girth joint servo-actuated cushion block, described sheet metal and welding head are fixed, the rotation inner bag feeds argon gas and welds automatically, and postwelding takes out outer girth joint servo-actuated cushion block;
(5-2) girth joint in the welding, girth joint servo-actuated cushion block in one is set, the upper surface of girth joint servo-actuated cushion block is the consistent cambered surface of interior circumferential weld internal face with inner bag in described, described cambered surface is provided with the appearance of weld groove, be provided with a plurality of argon gas spray orifices in the described appearance of weld groove, a side of girth joint servo-actuated cushion block is provided with the argon gas adapter in described, described argon gas is taken over and is communicated with described a plurality of argon gas spray orifices, and with flexible pipe connection argon gas source, the lower surface elasticity of girth joint servo-actuated cushion block connects a heavy wheel seat in described, during welding, to vertically be put by the weldering inner bag, with described interior girth joint servo-actuated cushion block with heavy wheel seat by advancing or escape pipe is inserted in the annular inner bag, the rotation inner bag, then described heavy wheel seat will remain in the extreme lower position of inner bag, and the inner surface of circumferential weld in connecting that girth joint servo-actuated cushion block is light in making and paste by elasticity, feed argon gas, weld automatically, girth joint servo-actuated cushion block and heavy wheel seat in postwelding takes out.
(6) carry out vacuum heat at 530-700 ℃.
Except that above-mentioned essential features, in specific implementation process, also can replenish following technology contents.
The manufacture method of described internal bladder of annular titanium alloy gas cylinder, wherein step (2) is described in the car hole, inlet, outlet hole site of titanium alloy annular semicircle pipe, is to carry out the car hole with the 5-shaft linkage numerical control lathe.
The manufacture method of described internal bladder of annular titanium alloy gas cylinder, wherein the described vacuum argon filling protection of step (3) chamber is first with the indoor 3-5Pa of being evacuated to, and charges into high-purity argon gas again.
The manufacture method of described internal bladder of annular titanium alloy gas cylinder, wherein the inner wall thickness of two titanium alloy annulars of the described chemistry milling of step (4) semicircle pipe is that thickness is arrived desired thickness greater than the inwall milling of milling thickness to 0.5-4mm, this thickness depends on the withstand voltage of gas cylinder, in the chemistry milling process, 10～15mm scope applies anti-etching lacquer around the outer surface of titanium alloy annular semicircle pipe, turnover tracheae, welding flange and the seam flange, to keep original thickness.
The manufacture method of described internal bladder of annular titanium alloy gas cylinder, wherein two titanium alloy annulars of the described welding of step (5) semicircle pipe inner and outer ring weld seam forms the inner bag of sealing; Back of weld carries out back-protective with the servo-actuated cushion block of ejection argon gas during welding;
The invention has the advantages that:
The present invention adopts the servo-actuated cushion block of particular design to carry out back-protective to make the inner and outer ring appearance of weld of inner bag attractive in appearance, intensity adheres to specification, weld defects such as pore-free, has good high voltage performance, passed through withstand voltage test, welding back inner bag outward appearance does not have distortion simultaneously, does not need school shape, meets the design tolerance requirement; Replace turning processing inner bag inwall effectively to solve the distortion that is caused because of turning processing with chemistry milling.
For processing method of the present invention and effect thereof are had further understanding, enumerate specific embodiment now and be described with reference to the accompanying drawings as follows.
Description of drawings
Fig. 1 is a kind of structure chart of internal bladder of annular titanium alloy gas cylinder.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 is the structure chart of another kind of internal bladder of annular titanium alloy gas cylinder.
Fig. 4 is the vertical view of Fig. 2.
Fig. 5 is the flow chart of the manufacture method of internal bladder of annular titanium alloy gas cylinder of the present invention.
Fig. 6 is the outer girth welding schematic diagram of internal bladder of annular titanium alloy gas cylinder of the present invention.
Fig. 7 is a girth welding schematic diagram in the internal bladder of annular titanium alloy gas cylinder of the present invention.
The specific embodiment
As shown in Figure 5, the manufacture method of internal bladder of annular titanium alloy gas cylinder provided by the present invention may further comprise the steps:
(1) 0.5-6mm is thick TC4 plate forging and pressing form two titanium alloy annular semicircle pipes; The concrete thickness of sheet material is determined according to the withstand voltage and processing request of gas cylinder;
(2) in the car hole, inlet, outlet hole site of titanium alloy annular semicircle pipe; The diameter in hole equals to pass in and out the diameter of the circular weld ring flange 5,6 on the tracheae.For improving weldquality, avoid adopting the corner connection weld seam, described turnover tracheae is provided with the circular weld ring flange, and is identical behind the thickness of described welding flange and the described annular semicircle Guan Debi;
(3) in vacuum argon filling protection chamber, the air inlet ozzle and the ozzle of giving vent to anger are welded on respectively on the hole of car system;
(4) inner wall thickness of two titanium alloy annulars of chemistry milling semicircle pipe is to 0.54mm; Milling thickness is decided according to the gas cylinder withstand voltage, specifically sees Table 1;
(5) two titanium alloy annular semicircle pipe inner and outer ring weld seams of welding form the inner bag of sealing; Back of weld carries out back-protective with the servo-actuated cushion block of ejection argon gas during welding;
(6) carry out vacuum heat at 530-700 ℃.Heat treatment temperature and time are relevant with thickness of slab, and concrete parameter sees Table 1.
Step (2) is described in the car hole, inlet, outlet hole site of titanium alloy annular semicircle pipe, is to carry out the car hole with the 5-shaft linkage numerical control lathe.
The described vacuum argon filling protection of step (3) chamber is first with the indoor 3-5Pa of being evacuated to, and charges into high-purity argon gas again.
The inner wall thickness of two titanium alloy annulars of the described chemistry milling of step (4) semicircle pipe is that thickness is arrived desired thickness greater than the inwall milling of milling thickness to 0.5-4mm, this thickness depends on the withstand voltage of gas cylinder, in the chemistry milling process, 10～15mm scope applies anti-etching lacquer around the outer surface of titanium alloy annular semicircle pipe, turnover tracheae, welding flange and the seam flange, to keep original thickness.
Two titanium alloy annulars of the described welding of step (5) semicircle pipe inner and outer ring weld seam forms the inner bag of sealing; Back of weld carries out back-protective with the servo-actuated cushion block of ejection argon gas during welding; Concrete steps are:
(5-1) weld outer girth joint earlier, shown in Figure 6, one outer girth joint servo-actuated cushion block 10 is set, the upper surface of described outer girth joint servo-actuated cushion block 10 is and the outer consistent cambered surface 11 of circumferential weld internal face of inner bag, described cambered surface 11 is provided with appearance of weld groove 12, be provided with a plurality of argon gas spray orifices 13 in the described appearance of weld groove 12, one side of described outer girth joint servo-actuated cushion block 10 is provided with argon gas and takes over 14, described argon gas is taken over 14 and is communicated with described a plurality of argon gas spray orifices 13, and with flexible pipe 15 connection argon gas sources, the lower surface of described outer girth joint servo-actuated cushion block 10 is provided with the wedge groove 16 parallel with weld seam, during welding, to vertically be placed in by the weldering inner bag and drive on the wheel carrier 30, with described outer girth joint servo-actuated cushion block 10 by advancing or escape pipe is inserted in the annular inner bag, the sheet metal 17 that has wedge surface with an end inserts inner bag by interior circumferential weld, and in the wedge groove 16 of the outer circumferential weld servo-actuated cushion block lower surface of wedging and fix with outer girth joint servo-actuated cushion block 10, described sheet metal 17 is fixing with welding head 40, the rotation inner bag, feeding argon gas welds automatically, postwelding takes out outer girth joint servo-actuated cushion block, finishes outer girth welding.
(5-2) girth joint in the welding, as shown in Figure 7, girth joint servo-actuated cushion block 20 in one is set, the upper surface of girth joint servo-actuated cushion block 20 is the consistent cambered surface 21 of internal face with the interior circumferential weld of inner bag in described, described cambered surface 21 is provided with appearance of weld groove 22, be provided with a plurality of argon gas spray orifices 23 in the described appearance of weld groove 22, a side of girth joint servo-actuated cushion block 20 is provided with argon gas and takes over 24 in described, described argon gas is taken over 24 and is communicated with described a plurality of argon gas spray orifices 23, and with flexible pipe 25 connection argon gas sources, the lower surface elasticity of girth joint servo-actuated cushion block 20 connects a heavy wheel seat 26 in described, during welding, to vertically be placed in by the weldering inner bag and drive on the wheel carrier, with described interior girth joint servo-actuated cushion block 20 with heavy wheel seat 26 by advancing or escape pipe is inserted in the annular inner bag, the rotation inner bag, then described heavy wheel seat 26 will remain in the extreme lower position of inner bag, and by elasticity connect make in the inner surfaces of circumferential weld in girth joint servo-actuated cushion block 20 light the subsides, feed argon gas, automatically weld girth joint servo-actuated cushion block and heavy wheel seat 26 in postwelding takes out.
Table 1
Claims (4)
1. the manufacture method of an internal bladder of annular titanium alloy gas cylinder is characterized in that may further comprise the steps:
(1) 0.5-6mm is thick TC4 plate forging and pressing form two titanium alloy annular semicircle pipes;
(2) in the car hole, inlet, outlet hole site of titanium alloy annular semicircle pipe;
(3) in vacuum argon filling protection chamber, the air inlet ozzle and the ozzle of giving vent to anger are welded on respectively on the hole of car system;
(4) inner wall thickness of two titanium alloy annulars of chemistry milling semicircle pipe is to 0.5-4mm;
(5) two titanium alloy annular semicircle pipe inner and outer ring weld seams of welding form the inner bag of sealing, and back of weld carries out back-protective with the servo-actuated cushion block of ejection argon gas during welding, and concrete steps are:
(5-1) weld outer girth joint earlier, one outer girth joint servo-actuated cushion block is set, the upper surface of described outer girth joint servo-actuated cushion block is and the outer consistent cambered surface of circumferential weld internal face of inner bag, described cambered surface is provided with the appearance of weld groove, be provided with a plurality of argon gas spray orifices in the described appearance of weld groove, one side of described outer girth joint servo-actuated cushion block is provided with argon gas and takes over, described argon gas is taken over and is communicated with described a plurality of argon gas spray orifices, and with flexible pipe connection argon gas source, the lower surface of described outer girth joint servo-actuated cushion block is provided with the wedge groove parallel with weld seam, during welding, to vertically be put by the weldering inner bag, by advancing or escape pipe is inserted in the annular inner bag, the sheet metal that has wedge surface with an end inserts inner bag by interior circumferential weld with described outer girth joint servo-actuated cushion block, and in the wedge groove of the outer circumferential weld servo-actuated cushion block lower surface of wedging and fix with outer girth joint servo-actuated cushion block, described sheet metal and welding head are fixed, the rotation inner bag feeds argon gas and welds automatically, and postwelding takes out outer girth joint servo-actuated cushion block;
(5-2) girth joint in the welding, girth joint servo-actuated cushion block in one is set, the upper surface of girth joint servo-actuated cushion block is the consistent cambered surface of interior circumferential weld internal face with inner bag in described, described cambered surface is provided with the appearance of weld groove, be provided with a plurality of argon gas spray orifices in the described appearance of weld groove, a side of girth joint servo-actuated cushion block is provided with the argon gas adapter in described, described argon gas is taken over and is communicated with described a plurality of argon gas spray orifices, and with flexible pipe connection argon gas source, the lower surface elasticity of girth joint servo-actuated cushion block connects a heavy wheel seat in described, during welding, to vertically be put by the weldering inner bag, described interior girth joint servo-actuated cushion block with heavy wheel seat by advancing or escape pipe is inserted in the annular inner bag, will be rotated inner bag, then described heavy wheel seat will remain in the extreme lower position of inner bag, and the inner surface of circumferential weld in connecting that girth joint servo-actuated cushion block is light in making and paste by elasticity, feed argon gas, weld automatically, girth joint servo-actuated cushion block and heavy wheel seat in postwelding takes out
(6) carry out vacuum heat at 530-700 ℃.
2. the manufacture method of internal bladder of annular titanium alloy gas cylinder according to claim 1 is characterized in that step (2) is described in the car hole, inlet, outlet hole site of titanium alloy annular semicircle pipe, is to carry out the car hole with the 5-shaft linkage numerical control lathe.
3. the manufacture method of internal bladder of annular titanium alloy gas cylinder according to claim 1 is characterized in that the described vacuum argon filling protection of step (3) chamber is first with the indoor 3-5Pa of being evacuated to, and charges into high-purity argon gas again.
4. the manufacture method of internal bladder of annular titanium alloy gas cylinder according to claim 1, the inner wall thickness that it is characterized in that two titanium alloy annulars of the described chemistry milling of step (4) semicircle pipe is that thickness is arrived desired thickness greater than the inwall milling of milling thickness to 0.5-4mm, this thickness depends on the withstand voltage of gas cylinder, in the chemistry milling process, 10～15mm scope applies anti-etching lacquer around the outer surface of titanium alloy annular semicircle pipe, turnover tracheae, welding flange and the seam flange, to keep original thickness.
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| CN102049643B (en) * | 2011-01-27 | 2015-05-13 | 潍柴重机股份有限公司 | Inner circular seam welding machine system and inner circular seam welding method |
| CN102649221B (en) * | 2012-05-18 | 2014-03-26 | 广东格美淇电器有限公司 | Production method of inner liner of electric water heater |
| CN103008995B (en) * | 2012-12-13 | 2015-11-04 | 西安西工大超晶科技发展有限责任公司 | A kind of forming method of aerospace fuel high strength titanium alloy gas cylinder |
| CN104266080B (en) * | 2014-09-10 | 2016-02-10 | 北京宇航系统工程研究所 | A kind of endless metal gas cylinder becoming wall thickness |
| CN105299438B (en) * | 2015-10-29 | 2017-12-26 | 湖北三江航天红阳机电有限公司 | A kind of manufacture method of metal lining composite ring gas bottle |
| CN107745230A (en) * | 2017-09-30 | 2018-03-02 | 安徽绿动能源有限公司 | A kind of CNG cylinder liners calendering technology |
| CN109940312A (en) * | 2017-12-20 | 2019-06-28 | 南通中集罐式储运设备制造有限公司 | Tank case welding gas shielded device |
| KR102012794B1 (en) * | 2018-03-07 | 2019-11-04 | 주식회사 엔케이 | Cylinder treatment method for ultra-high purity gas filling |
| CN112276293A (en) * | 2020-10-29 | 2021-01-29 | 广船国际有限公司 | Tubular pile circumferential weld welding method |
| CN112719657B (en) * | 2020-12-03 | 2022-10-11 | 珠海瑞凌焊接自动化有限公司 | Multi-station nozzle welding workstation |
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| CN1325838C (en) * | 2005-07-04 | 2007-07-11 | 哈尔滨工业大学 | High pressure gas cylinder made from carbon fiber composite material and manufacturing method thereof |
| CN100560343C (en) * | 2006-09-21 | 2009-11-18 | 航天材料及工艺研究所 | The manufacture method of metal lining composite ring gas bottle |
| JP5164377B2 (en) * | 2006-12-27 | 2013-03-21 | 三洋電機株式会社 | Manufacturing method of sealed battery |
| CN101391339B (en) * | 2008-11-12 | 2010-12-15 | 中国航空工业第一集团公司北京航空材料研究院 | Method for thinning welding-seam organization and increasing welding-seam ductility during welding the titanium alloy, powder filling device |
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