CN109604938A - A kind of manufacturing process of thin-wall stainless steel gas cylinder - Google Patents
A kind of manufacturing process of thin-wall stainless steel gas cylinder Download PDFInfo
- Publication number
- CN109604938A CN109604938A CN201811347532.7A CN201811347532A CN109604938A CN 109604938 A CN109604938 A CN 109604938A CN 201811347532 A CN201811347532 A CN 201811347532A CN 109604938 A CN109604938 A CN 109604938A
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- Prior art keywords
- spinning
- pipe
- end socket
- closing
- gas cylinder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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- 229910001220 stainless steel Inorganic materials 0.000 title claims abstract description 56
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 54
- 239000010935 stainless steel Substances 0.000 title claims abstract description 51
- 238000009987 spinning Methods 0.000 claims abstract description 200
- 239000007789 gas Substances 0.000 claims abstract description 71
- 238000000034 method Methods 0.000 claims abstract description 27
- 238000003466 welding Methods 0.000 claims abstract description 25
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000007493 shaping process Methods 0.000 claims abstract description 9
- 229910052786 argon Inorganic materials 0.000 claims abstract description 5
- 238000012545 processing Methods 0.000 claims description 29
- 238000010438 heat treatment Methods 0.000 claims description 20
- 239000000463 material Substances 0.000 claims description 19
- 238000003825 pressing Methods 0.000 claims description 19
- 238000012546 transfer Methods 0.000 claims description 14
- 239000000243 solution Substances 0.000 claims description 11
- 238000003754 machining Methods 0.000 claims description 7
- 230000008719 thickening Effects 0.000 claims description 6
- 230000009471 action Effects 0.000 claims description 4
- 239000011230 binding agent Substances 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 4
- 239000010687 lubricating oil Substances 0.000 claims description 4
- 239000006104 solid solution Substances 0.000 claims description 4
- 238000010129 solution processing Methods 0.000 claims description 4
- 238000005553 drilling Methods 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 abstract description 7
- 239000010959 steel Substances 0.000 abstract description 7
- 230000008569 process Effects 0.000 abstract description 6
- 239000000047 product Substances 0.000 description 18
- 238000001816 cooling Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 239000010963 304 stainless steel Substances 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 229910000589 SAE 304 stainless steel Inorganic materials 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 4
- 230000001681 protective effect Effects 0.000 description 4
- 238000002791 soaking Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 238000011088 calibration curve Methods 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 239000001307 helium Substances 0.000 description 2
- 229910052734 helium Inorganic materials 0.000 description 2
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000001819 mass spectrum Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000013213 extrapolation Methods 0.000 description 1
- 230000009970 fire resistant effect Effects 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000011265 semifinished product Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/14—Spinning
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C1/00—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2209/00—Vessel construction, in particular methods of manufacturing
- F17C2209/21—Shaping processes
- F17C2209/2181—Metal working processes, e.g. deep drawing, stamping or cutting
Abstract
The present invention provides a kind of manufacturing process of thin-wall stainless steel gas cylinder, using cold-drawn pipe as blank, successively closing in spinning part A and closing in spinning part B is obtained by shear spinning and closing in spinning, it is successively heat-treated and is machined respectively shaping to it again, is welded together the above-mentioned closing in spinning part A processed and closing in spinning part B finally by the welding manner of argon arc welding.The stainless steel gas cylinder being process by this method, uniform wall thickness, appearance is good, and reconditioning quality is small, and overall weight compares pure welding steel gas cylinder and substantially mitigates 50% or more, and manufacturing cost significantly reduces；Product grains tissue is refined, and the mechanical property of gas cylinder entirety and the reliability of high-temperature service are significantly improved, and the manufacture that the thin-walled gas cylinder of high temperature and pressure use condition is faced on opposite is of great significance.
Description
Technical field
The invention belongs to gas cylinder manufacturing fields, and in particular to a kind of manufacturing process of thin-wall stainless steel gas cylinder.
Background technique
High pressure gas cylinder is the critical component of aerospace equipment, is up to 35MPa using pressure, maximum operation (service) temperature is more than
400℃.Conventional cylinder product is the pure steel gas cylinder that thickness reaches 18mm-20mm, and bottle body uses drawn and rolled tube, and both ends end socket uses
Forging is prepared through over mechanical processing, is finally again attached both ends end socket with bottle body using welding procedure.It was actually using
Grain structure is coarse in the welding region of Cheng Zhong, end socket and bottle body, and Grain Boundary Precipitates are obvious, and grain-boundary weakness effect is serious, for a long time
There are the hidden danger such as gas leakage and germinating defect after use, and the weight of this pure steel gas cylinder using welding manner manufacture is big,
It increasingly disconnects with light-weighted requirement.For practical development demand, the pure steel gas cylinder of heavy wall has been unable to satisfy pressure, temperature, has subtracted
The requirement of equal design objectives again, the design scheme of novel aerospace stainless steel gas cylinder are as follows: in the thin-walled with a thickness of 1mm or so
The liner winding carbon fiber and fire resistant resin of stainless steel gas cylinder, so that high-pressure composite gas cylinder be made, wherein thin-wall stainless steel gas
The preparation of bottle is core technology.
Accordingly, it is desirable to provide a kind of for a kind of insufficient manufacturing process of thin-wall stainless steel gas cylinder of the above-mentioned prior art.
Summary of the invention
It is pure at least to solve tradition at present that the purpose of the present invention is to provide a kind of manufacturing process of thin-wall stainless steel gas cylinder
Steel gas cylinder thickness is big, overall weight is big, grain-boundary weakness effect in welding section is serious, the problems such as hidden danger is more are used for a long time.
To achieve the goals above, the invention provides the following technical scheme:
A kind of manufacturing process of thin-wall stainless steel gas cylinder, the thin-wall stainless steel gas cylinder pass through the manufacturing process by pipe
Be process, the thin-wall stainless steel gas cylinder include integrally formed end socket A, bottleneck A and integrally formed bottle body, end socket B and
Bottleneck B, the manufacturing process include the following steps:
Blanking: S1 prepares pipe to be processed, respectively pipe A and pipe B；
S2, the preliminary spinning of pipe are thinned: carrying out spinning respectively to pipe A and pipe B and be thinned；
S3, the shaping of pipe end face: the end to be closed up of the pipe shaped after spinning is thinned is machined, it is ensured that
The notch of closing in end is neat, to obtain that spinning part A and thinned spinning part B is thinned；
S4, closing in spinning: carrying out closing in spinning to thinned spinning part A and thinned spinning part B, obtain closing in spinning part A and
Closing in spinning part B；End socket A, the gripping section A that closing in spinning part A is one of the forming, bottle body that closing in spinning part B is one of the forming,
End socket B and gripping section B；
Solution treatment: S5 carries out vacuum solid solution processing to closing in spinning part A and closing in spinning part B respectively；
S6 is machined shaping: respectively to the envelope head profile of closing in spinning part A and closing in spinning part B after solution treatment
It is machined, and cuts gripping section A and gripping section B, obtain integrally formed end socket A, bottleneck A and integrally formed bottle
Body, end socket B and bottleneck B；
Connection: S7 end socket A is attached with bottle body.
The manufacturing process of thin-wall stainless steel gas cylinder as described above, it is preferable that the step S1 specifically comprises the following steps:
S11 chooses drawn tube as blank tube material；
Drawn tube is processed into pipe A and pipe B by turnery processing by S12；
S13, pipe A resulting to turnery processing and pipe B are heat-treated, to reduce the intensity of pipe A and pipe B,
Meet shear spinning processing request.
The manufacturing process of thin-wall stainless steel gas cylinder as described above, it is preferable that the step S2 specifically comprises the following steps:
S21, by the uniform coating lubricating oil in outer surface of the inner surface and mould pressing mold of pipe A and pipe B, to guarantee
Internal surface of bloom after being thinned by spinning does not scratch；
Pipe is slowly inserted in mould pressing mold under the action of tail top and binder disk by S22, until pipe back cover and rotation
Pressing formation die face is compressed to complete pipe installation；
S23 carries out shear spinning to pipe A and pipe B respectively with dextrorotation outside spinning technique, subtracts pipe A and pipe B
It is thin.
The manufacturing process of thin-wall stainless steel gas cylinder as described above, it is preferable that the step S23 specifically comprises the following steps:
S231 carries out shear spinning to pipe A and pipe B respectively with dextrorotation outside spinning technique, keeps pipe A and pipe B whole
Body is thinned；
S232, the non-shaped segment that thickens of pipe A and pipe B after entirety is thinned respectively are with the progress of dextrorotation outside spinning technique
Multiple shear spinning is thinned, described non-one end for thickening shaped segment and being located at the nearly gripping section of pipe.
The manufacturing process of thin-wall stainless steel gas cylinder as described above, it is preferable that the step S4 includes the following steps:
The running track of the spinning roller of closing in spinning machine and the revolving speed of spinning process and feeding parameter is arranged in S41；
S42 clamps the thinned spinning for forming head A and end socket B by the clamping tool of closing in spinning machine respectively
Part A and thinned spinning part B then preheats thinned spinning part A and thinned spinning part B；
S43 executes multi-pass closing in spinning program, while carrying out concurrent heating to thinned spinning part A and thinned spinning part B, from
It is dynamic to complete head surface mould pressing, obtain integrally formed end socket A, gripping section A and integrally formed bottle body, end socket B and folder
Hold a section B；
S44 carries out the spinning preform of bottleneck A and bottleneck B to end socket A and end socket B respectively.
The manufacturing process of thin-wall stainless steel gas cylinder as described above, it is preferable that the step S6 specifically comprises the following steps:
S61 carries out turnery processing to the inner and outer surfaces of closing in spinning part A and closing in spinning part B respectively, obtain bottleneck A and
Bottleneck B；
S62 carries out drilling processing to bottleneck A and bottleneck B respectively, obtains transfer port A and transfer port B；
S63 cuts gripping section A and gripping section B respectively, obtains integrally formed end socket A, bottleneck A and integrally formed bottle
Body, end socket B and bottleneck B.
The manufacturing process of thin-wall stainless steel gas cylinder as described above, it is preferable that the step S7 specifically comprises the following steps:
End socket A and bottle body correspondence are welded as a whole by S71 using welding manner；
S72 detects the weld seam between end socket A and bottle body, it is ensured that weld seam meets the requirement of high-temperature bearing.
The manufacturing process of thin-wall stainless steel gas cylinder as described above, it is preferable that described prepared by the manufacturing process
The structure of thin-wall stainless steel gas cylinder includes:
Bottle body, the bottle body are one cylindric；
End socket A, the end socket A are half spherical shape convex head, and the edge of the end socket A and one end of bottle body connect；
End socket B, the end socket B are half spherical shape convex head, and the edge of the end socket B and the other end of bottle body connect；
Bottleneck A, the bottleneck A protrude from the spherical of end socket A, and the bottleneck A is provided with transfer port A；
Bottleneck B, the bottleneck B protrude from the spherical of end socket B, and the bottleneck B is provided with transfer port B.
The manufacturing process of thin-wall stainless steel gas cylinder as described above, it is preferable that the bottle body thickness of the thin-wall stainless steel gas cylinder
For 0.8~1.2mm, the diameter of the bottle body is 60~120mm, and the length of the thin-wall stainless steel gas cylinder is 400~850mm,
The end socket A and end socket B with a thickness of 0.8~3mm.
The manufacturing process of thin-wall stainless steel gas cylinder as described above, it is preferable that the welding manner is argon arc welding.
Compared with the immediate prior art, technical solution provided by the invention has following excellent effect:
(1) compared to the traditional handicraft of rolling bottle body and the welding of two sides forged head, not using thin-walled provided by the invention
Gas cylinder product prepared by the manufacturing process of steel gas cylinder that becomes rusty, uniform wall thickness, appearance is good, and reconditioning quality is small, and overall weight substantially mitigates
50% or more, and manufacturing cost significantly reduces；
(2) present invention realizes the integral forming of side end socket and bottle body, reduces by 1 weld seam, simultaneously because product wall
Thickness, other end end socket and the heat affected area of bottle body weld seam are small, carry out multinomial weldquality inspection by strict control and in postwelding
It surveys, the leftover problem that gas easily leaks under more weld seam states is made to have obtained very big improvement；
(3) gas cylinder each section prepared by the present invention is spinning structural member, can refine product grains tissue in all directions, special
It is not end socket and its bonding pad with bottle body, grain size number highest can be refined to 7-8 grades, significantly improve the power of gas cylinder entirety
Learn performance and high-temperature service reliability；
(4) the manufacturing process mechanization degree of thin-wall stainless steel gas cylinder provided by the invention is high, the equipment that forms a complete production network and accounts for
Ground lacks, and working environment is preferable, effectively reduces influence of the manual operation to product batch quality of production consistency, production efficiency
Height can be well adapted for short cycle, the production of the engineering of high the degree of automation.
Detailed description of the invention
The accompanying drawings constituting a part of this application is used to provide further understanding of the present invention, and of the invention shows
Examples and descriptions thereof are used to explain the present invention for meaning property, does not constitute improper limitations of the present invention.
Wherein:
Fig. 1 is the finished product structure schematic diagram of the thin-wall stainless steel gas cylinder of the embodiment of the present invention；
Fig. 2 is the manufacturing process flow chart of the thin-wall stainless steel gas cylinder of the embodiment of the present invention；
Fig. 3 is the specific flow chart of the step S1 in Fig. 2；
Fig. 4 is the specific flow chart of the step S2 in Fig. 2；
Fig. 5 is the specific flow chart of the step S23 in Fig. 4；
Fig. 6 is the specific flow chart of the step S4 in Fig. 2；
Fig. 7 is the specific flow chart of the step S6 in Fig. 2；
Fig. 8 is the specific flow chart of the step S7 in Fig. 2；
Fig. 9 is the pipe A structural schematic diagram of the embodiment of the present invention；
Figure 10 is the pipe B structure schematic diagram of the embodiment of the present invention；
Figure 11 is the thinned spinning part A structural schematic diagram of the embodiment of the present invention；
Figure 12 is the thinned spinning part B structure schematic diagram of the embodiment of the present invention；
Figure 13 is the bottleneck manufacturing process schematic diagram of the embodiment of the present invention.
In figure: 1, bottleneck A；2, end socket A；3, weld seam；4, bottle body；5, end socket B；6, bottleneck B；7, pipe A；8, pipe B；9,
Spinning part A is thinned；10, spinning part B is thinned.
Specific embodiment
The present invention will be described in detail below with reference to the accompanying drawings and embodiments.It should be noted that in the feelings not conflicted
Under condition, the features in the embodiments and the embodiments of the present application be can be combined with each other.
In the description of the present invention, term " longitudinal direction ", " transverse direction ", "upper", "lower", "front", "rear", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "top", "bottom" is to be based on the orientation or positional relationship shown in the drawings, and is only
For ease of description the present invention rather than require the present invention that must be constructed and operated in a specific orientation, therefore should not be understood as pair
Limitation of the invention.Term used in the present invention " connected ", " connection " shall be understood in a broad sense, for example, it may be fixedly connected,
It may be a detachable connection；It can be directly connected, can also be indirectly connected by intermediate member, for the common of this field
For technical staff, the concrete meaning of above-mentioned term can be understood as the case may be.
According to a particular embodiment of the invention, as shown in Figure 1, being the thin-wall stainless steel gas cylinder of the present embodiment, thin-walled is stainless
Steel gas cylinder includes:
Bottleneck A1, bottleneck A1 protrude from the spherical of end socket A2, and bottleneck A1 is provided with transfer port A；
End socket A2, end socket A2 are half spherical shape convex head, and the edge of end socket A2 is connect with bottle body 4；
Bottle body 4, bottle body 4 are one cylindric, and one end is connect with end socket A2, and the other end is connect with end socket B5；
End socket B5, end socket B5 are half spherical shape convex head, and the edge of end socket B5 is connect with bottle body 4；
Bottleneck B6, bottleneck B6 protrude from the spherical of end socket B5, and bottleneck B6 is provided with transfer port B.
Bottleneck A1 and end socket A2 is one of the forming structure, and bottleneck B6, end socket B5 and bottle body 4 are one of the forming structure；Thin-walled
The material of stainless steel gas cylinder is 304 stainless steels.
In an embodiment of the present invention, bottle body 4 with a thickness of 0.8~1.2mm (such as 0.9mm, 0.95mm, 1.0mm,
1.05mm, 1.1mm, 1.15mm), 4 internal diameter of bottle body be 60~120mm (such as 62mm, 67mm, 73mm, 78mm, 83mm, 88mm,
95mm, 103mm, 107mm, 112mm, 118mm), the length of stainless steel gas cylinder be 400~850mm (such as 420mm, 450mm,
480mm, 500mm, 530mm, 570mm, 610mm, 650mm, 690mm, 720mm, 760mm, 800mm, 820mm, 830mm), end socket
A2 and end socket B5 with a thickness of 0.8~3mm (such as 0.9mm, 1.0mm, 1.1mm, 1.3mm, 1.5mm, 1.7mm, 1.9mm,
2.1mm、2.2mm、2.5mm、2.8mm、2.9mm)。
The embodiment of the present invention also provides the manufacturing process of thin-wall stainless steel gas cylinder, as shown in Fig. 2-Figure 13, manufacturing process
Include the following steps:
Blanking: S1 prepares pipe to be processed, respectively pipe A7 and pipe B8；Specific steps are as follows:
S11 chooses drawn tube as blank tube material；
S12, the pipe A7 and pipe B8 for being processed into drawn tube by turnery processing；The internal diameter of pipe A7 and pipe B8 with
Product internal diameter is close, according to the distribution of the size of product can be processed into 60~120mm (such as 62mm, 67mm, 73mm, 78mm,
83mm,88mm,95mm,103mm,107mm,112mm,118mm)；The wall thickness of pipe A7 and pipe B8 are thinned according to shear spinning
The reserved amount of the processing of rate, product final wall thickness and 1mm or so, which calculates, to be determined.According to the material characteristics of 304 stainless steels, reduction is set
Be set to 75%, final spinning adds surplus plus machine with a thickness of 4 wall thickness of bottle body, can Extrapolation obtain the thickness of pipe A7 and pipe B8
Degree；Pipe A7 length is 90mm, the corresponding 400~850mm of the length of pipe B8 (such as 420mm, 450mm, 480mm, 500mm,
530mm, 570mm, 610mm, 650mm, 690mm, 720mm, 760mm, 800mm, 820mm, 830mm) 4 length of bottle body may be selected
140~300mm (such as 142mm, 160mm, 180mm, 200mm, 220mm, 240mm, 260mm, 280mm).It is processed above-mentioned
The end outer circle of the pipe A7 and pipe B8 of size fall 5 × 30 ° of chamferings, install convenient for blank.
The dimension precision requirement of pipe A7 is as follows:
Pipe internal diameter:
Shape segment length: 90mm；
It rises and revolves slope angle: 15 °.
The dimension precision requirement of pipe B8 is as follows:
Pipe internal diameter:
Shape segment length: 140~300mm (such as 142mm, 160mm, 180mm, 200mm, 220mm, 240mm, 260mm,
280mm)；
It rises and revolves slope angle: 15 °.
S13, pipe A7 resulting to turnery processing and pipe B8 are heat-treated, and are handled according to 304 stainless steel hots related
Standard criterion is heat-treated pipe A7 and pipe B8 using following heat treating regime, to reduce its intensity, meets it strong
The requirement of power rotary pressing processing:
Equipment for Heating Processing: heat-treatment furnace, temperature-controlled precision are not more than ± 5 DEG C；
Heating mode: it heats up with furnace；
Holding temperature: 850 DEG C；
Soaking time: 1.0~2.5h (such as 1.2h, 1.4h, 1.6h, 1.8h, 2.0h, 2.2h, 2.4h)；
Protective atmosphere: inert gas；
The type of cooling: furnace cooling.
S2, the preliminary spinning of pipe are thinned: carrying out spinning respectively to pipe A7 and pipe B8 and be thinned, concrete operation step is such as
Under:
S21, by the uniform coating lubricating oil in outer surface of the inner surface and mould pressing mold of pipe A7 and pipe B8, to protect
The internal surface of bloom after being thinned by spinning is demonstrate,proved not scratch；
Pipe is slowly inserted in mould pressing mold under the action of tail top and binder disk by S22, until pipe back cover and rotation
Pressing formation die face is compressed to complete pipe installation；
S23 carries out shear spinning to pipe A7 and pipe B8 respectively with dextrorotation outside spinning technique, it is thinned；According to pipe
The original dimension of base and the final size of bottle body 4, and there are the machining allowance of 1mm, entire strengths on the basis of final wall thickness
Spinning process is divided into four passages and carries out, and a solution treatment is passed through in centre, specific steps are as follows:
S231 carries out shear spinning to pipe A7 and pipe B8 respectively with dextrorotation outside spinning technique, makes pipe A7 and pipe
B8 is integrally thinned；
Due to the presence of material deformation rebound amount, certain rebound can occur for material after deformation, according to the life of 304 stainless steels
Industry is tested, and design springback capacity is 0.4mm, is write spinning program according to following parameter, is carried out the first passage spinning:
The first passage speed of mainshaft: 30~60r/min (such as 35r/min, 40r/min, 45r/min, 50r/min, 55r/
min,58r/min)；
First passage feed speed: 30~60mm/min (such as 35mm/min, 40mm/min, 45mm/min, 50mm/
min,55mm/min,58mm/min)；
The final gap of first passage spinning roller and mold: 5.3~5.7mm (such as 5.35mm, 5.4mm, 5.5mm, 5.6mm,
5.65mm)；
First passage deform after pipe wall thickness be about 5.7~6.1mm (such as 5.75mm, 5.8mm, 5.9mm,
6.0mm,6.05mm)；
S232, the non-shaped segment that thickens of pipe A and pipe B after entirety is thinned respectively are with the progress of dextrorotation outside spinning technique
Multiple shear spinning is thinned, described non-one end for thickening shaped segment and being located at the nearly gripping section of pipe.Due to final head surface 1 and envelope
First 2 end has the bottleneck structure thickened, needs specially that there are one section to thicken shaped segment for subsequent closing in spinning, to realize material
The accumulation of material thickens.Forming is thickened to what the remote clamping end of pipe A7 and pipe B8 after whole be thinned reserved 100mm respectively
Section, residue length thicken shaped segment to be non-, carry out repeatedly strength to the non-pipe for thickening shaped segment with dextrorotation outside spinning technique and revolve
Pressure, makes its thickness be thinned to target size；
Spinning program is write according to following parameter, carries out the second passage, third passage and four-pass spinning respectively:
The second passage speed of mainshaft: 30~60r/min (such as 35r/min, 40r/min, 45r/min, 50r/min, 55r/
min,58r/min)；
Second passage feed speed: 30~60mm/min (such as 35mm/min, 40mm/min, 45mm/min, 50mm/
min,55mm/min,58mm/min)；
The final gap of second passage spinning roller and mold: 3.6~4.0mm (such as 3.65mm, 3.7mm, 3.75mm,
3.8mm,3.85mm,3.9mm,3.95mm)；
Second passage deform after pipe wall thickness be about 4.0~4.4mm (such as 4.05mm, 4.1mm, 4.15mm,
4.2mm,4.25mm,4.3mm,4.35mm)；
The third passage speed of mainshaft: 30~60r/min (such as 35r/min, 40r/min, 45r/min, 50r/min, 55r/
min,58r/min)；
Third passage feed speed: 30~60mm/min (such as 35mm/min, 40mm/min, 45mm/min, 50mm/
min,55mm/min,58mm/min)；
The final gap of third passage spinning roller and mold: 2.3~2.7mm (such as 2.35mm, 2.4mm, 2.45mm,
2.5mm,2.55mm,2.6mm,2.65mm)；
Third passage deform after pipe wall thickness be about 2.7~3.1mm (such as 2.75mm, 2.8mm, 2.85mm,
2.9mm,3.0mm,3.05mm)；
The four-pass speed of mainshaft: 30~60r/min (such as 35r/min, 40r/min, 45r/min, 50r/min, 55r/
min,58r/min)；
Four-pass feed speed: 30~60mm/min (such as 35mm/min, 40mm/min, 45mm/min, 50mm/
min,55mm/min,58mm/min)；
The final gap of four-pass spinning roller and mold: 1.4~1.8mm (such as 1.5mm, 1.55mm, 1.6mm,
1.65mm,1.7mm,1.75mm)；
Four-pass deform after pipe wall thickness be about 1.8~2.2mm (such as 1.85mm, 1.9mm, 1.95mm,
2.0mm、2.1mm、2.15mm)。
S3, the shaping of pipe end face: the end to be closed up of the pipe shaped after spinning is thinned is machined, it is ensured that
The notch of closing in end is neat, to obtain that spinning part A9 and thinned spinning part B10 is thinned；
After pipe shear spinning, inequal end will form in the free end that spinning part A9 and thinned spinning part B10 is thinned
Mouthful, it is unfavorable for control of the subsequent closing in spinning to dimensional accuracy, port need to be processed on lathe, it is ensured that notch is neat,
For the pipe B8 for forming head B5 and bottle body 4, smooth working process is carried out to 4 outer surface of bottle body.
Closing in spinning: S4 carries out closing in spinning to thinned spinning part A9 and thinned spinning part B10, obtains closing in spinning part A
With closing in spinning part B；End socket A2, the gripping section A that closing in spinning part A is one of the forming, the bottle that closing in spinning part B is one of the forming
Body 4, end socket B5 and gripping section B；Specific steps are as follows:
S41 is required according to the type face of end socket A2 and end socket B5, and the running track of the spinning roller of closing in spinning machine is arranged, with
And the revolving speed of spinning process and feeding parameter, technological parameter is as follows:
The speed of mainshaft: 180r/min；
Feed speed: 200mm/min；
S42 clamps the thinned rotation for forming head A2 and end socket B5 by the clamping tool of closing in spinning machine respectively
Casting die A9 and thinned spinning part B10 then preheats thinned spinning part A9 and thinned spinning part B10；Temperature control passes through
It is realized by the infrared radiation thermometer real-time monitoring and heating system real-time monitoring of calibration curve；Closing in spinning heating and temperature control
At 900~1100 DEG C (such as 930 DEG C, 960 DEG C, 990 DEG C, 1020 DEG C, 1050 DEG C, 1080 DEG C).
S43 executes multi-pass closing in spinning program, while carrying out concurrent heating to thinned spinning part A9 and thinned spinning part B10,
It is automatically performed head surface mould pressing；Obtain integrally formed end socket A2, gripping section A and integrally formed bottle body 4, end socket
B5 and gripping section B；Spinning roller is gradually run to miner diameter end along axis from product bigger diameter end, by the closing in spinning of five passages, is made
Spinning part is thinned and waits for that closing in processing district gradually to the shape approximation of head surface, finally meets the requirements outer mold surface, and there are few
The machining allowance of amount.
S44 carries out bottleneck A1 and bottleneck B6 mould pressing to end socket A2 and end socket B5 respectively.
There is head surface bottleneck structure to need the ruler according to bottleneck in the running track of every a time editor spinning roller
It is very little to add 2-3 dextrorotation, derotation technique in its front-rear position, so that reserved material is sufficiently accumulated to position of bottleneck to complete
Preform, entirely close up spinning process, and the forming process signal of head surface and bottleneck is as shown in figure 13.
Solution treatment: S5 carries out vacuum solid solution processing to closing in spinning part A and closing in spinning part B, to ensure its mechanical property
It is able to satisfy requirement；
Specification is handled according to 304 stainless steel hots, closing in spinning finished product is carried out using following heat treating regime
Heat treatment, to promote the mechanical property of material, reduce residual stress:
Equipment for Heating Processing: glowing furnace, temperature-controlled precision are not more than ± 5 DEG C；
Heating mode: it heats up with furnace；
Holding temperature: 1060 DEG C；
Soaking time: 1.0~2.5h (such as 1.2h, 1.4h, 1.6h, 1.8h, 2.0h, 2.2h, 2.4h)；
Protective atmosphere: inert gas；
The type of cooling: furnace cooling.
S6 is machined shaping: respectively to the envelope head profile of closing in spinning part A and closing in spinning part B after solution treatment
It is machined, and cuts gripping section A and gripping section B, obtain integrally formed end socket A2, bottleneck A1 and integrally formed
Bottle body 4, end socket B5 and bottleneck B6；Specific steps are as follows:
S61 carries out turnery processing to the inner and outer surfaces of closing in spinning part A and closing in spinning part B respectively, obtains bottleneck A1
With bottleneck B6；
S62 obtains transfer port A and transfer port B respectively to the simultaneously machining internal thread that drill at bottleneck A1 and bottleneck B6；
S63 cuts gripping section A and gripping section B respectively, obtains integrally formed end socket A2, bottleneck A1 and integrally formed
Bottle body 4, end socket B5 and bottleneck B6, make it meet welding requirements.
S7, connection: end socket A2 and bottle body 4 are attached, specific steps are as follows:
End socket A2 and the correspondence of bottle body 4 are welded as a whole by S71 using the welding manner of argon arc welding；
S72 detects the weld seam 3 between end socket A2 and bottle body 4, it is ensured that the use that weld seam 3 meets high-temperature bearing is wanted
It asks.
Welding procedure is evaluated by multinomial detection means such as tension test, hydraulic pressure, x-ray detection, helium mass spectrums, to test
Card weld seam 3 meets the requirement of high-temperature bearing.
Embodiment 1
In an embodiment of the present invention, bottle body 4 with a thickness of 1mm, 4 internal diameter of bottle body is 95mm, the length of stainless steel gas cylinder
It is 660mm, end socket A2 and end socket B5 with a thickness of graded profile, with 4 join domain of bottle body with a thickness of 1mm, bottleneck area thickness
For 3mm.
The embodiment of the present invention also provides the manufacturing process of thin-wall stainless steel gas cylinder, and manufacturing process includes the following steps:
Blanking: S1 prepares pipe to be processed, respectively pipe A7 and pipe B8；Specific steps are as follows:
S11 chooses drawn tube as blank tube material；
S12, the pipe A7 and pipe B8 for being processed into drawn tube by turnery processing；The internal diameter of pipe A7 and pipe B8 is
95mm；The wall thickness of pipe A7 and pipe B8 calculate true according to shear spinning reduction, product final wall thickness and the reserved amount of 1mm processing
It is fixed.According to the material characteristics of 304 stainless steels, reduction is set as 75%, be calculated pipe A7 and pipe B8 with a thickness of
8mm；The length of pipe A7 and pipe B8 are respectively 90mm, 215mm.By the end of the above-mentioned pipe A7 for processing size and pipe B8
Outer circle falls 5 × 30 ° of chamferings, installs convenient for blank.
The dimension precision requirement of pipe A7 is as follows:
Pipe internal diameter:
Pipe thickness:
Shape segment length: 90mm；
It rises and revolves slope angle: 15 °.
The dimension precision requirement of pipe B8 is as follows:
Pipe internal diameter:
Pipe thickness:
Shape segment length: 215mm；
It rises and revolves slope angle: 15 °.
S13, pipe A7 resulting to turnery processing and pipe B8 are heat-treated；It is handled according to 304 stainless steel hots related
Standard criterion is heat-treated pipe A7 and pipe B8 using following heat treating regime, to reduce its intensity, meets it strong
The requirement of power rotary pressing processing:
Equipment for Heating Processing: heat-treatment furnace, temperature-controlled precision are not more than ± 5 DEG C；
Heating mode: it heats up with furnace；
Holding temperature: 850 DEG C；
Soaking time: 1.5h；
Protective atmosphere: nitrogen；
The type of cooling: furnace cooling.
S2, the preliminary spinning of pipe are thinned: carrying out spinning respectively to pipe A7 and pipe B8 and be thinned；Concrete operation step is such as
Under:
S21, by the uniform coating lubricating oil in outer surface of the inner surface and mould pressing mold of pipe A7 and pipe B8, to protect
The internal surface of bloom after being thinned by spinning is demonstrate,proved not scratch；
Pipe is slowly inserted in mould pressing mold under the action of tail top and binder disk by S22, until pipe back cover and rotation
Pressing formation die face is compressed to complete pipe installation；
S23 carries out shear spinning to pipe A7 and pipe B8 respectively with dextrorotation outside spinning technique, it is thinned, according to pipe
The original dimension of base and the final size of bottle body 4, and consider that there are the machining allowance of 1mm on the basis of final wall thickness 1mm, i.e.,
After shear spinning obtain 4 part wall thickness of bottle body be about 2mm semi-finished product, entire shear spinning process be divided into four passages into
A solution treatment is passed through in row, centre, specific steps are as follows:
S231 carries out shear spinning to pipe A7 and pipe B8 respectively with dextrorotation outside spinning technique, makes pipe A7 and pipe
B8 is integrally thinned；
Due to the presence of material deformation rebound amount, certain rebound can occur for material after deformation, according to the life of 304 stainless steels
Industry is tested, and design springback capacity is 0.4mm, is write spinning program according to following parameter, is carried out the first passage spinning
The first passage speed of mainshaft: 40r/min；
First passage feed speed: 40mm/min；
The final gap of first passage spinning roller and mold: 5.5mm；
Pipe wall thickness is about 5.9mm after first passage deforms；
S232, the non-shaped segment that thickens of pipe A and pipe B after entirety is thinned respectively are with the progress of dextrorotation outside spinning technique
Multiple shear spinning is thinned, described non-one end for thickening shaped segment and being located at the nearly gripping section of pipe.Due to final head surface 1 and envelope
First 2 end has the bottleneck structure thickened, needs specially that there are one section to thicken shaped segment for subsequent closing in spinning, to realize material
The accumulation of material thickens.Forming is thickened to what the remote clamping end of pipe A7 and pipe B8 after whole be thinned reserved 100mm respectively
Section, residue length thicken shaped segment to be non-, carry out repeatedly strength to the non-pipe for thickening shaped segment with dextrorotation outside spinning technique and revolve
Pressure, makes its thickness be thinned to target size；
Spinning program is write according to following parameter, carries out the second passage, third passage and four-pass spinning respectively:
The second passage speed of mainshaft: 40r/min；
Second passage feed speed: 40mm/min；
The final gap of second passage spinning roller and mold: 3.8mm；
Pipe wall thickness is about 4.2mm after second passage deforms；
The third passage speed of mainshaft: 40r/min；
Third passage feed speed: 40mm/min；
The final gap of third passage spinning roller and mold: 2.5mm；
Pipe wall thickness is about 2.9mm after third passage deforms；
The four-pass speed of mainshaft: 40r/min；
Four-pass feed speed: 40mm/min；
The final gap of four-pass spinning roller and mold: 1.6mm；
Pipe wall thickness is about 2.0mm after four-pass deforms.
S3, the shaping of pipe end face: the end to be closed up of the pipe shaped after spinning is thinned is machined, it is ensured that
The notch of closing in end is neat, to obtain that spinning part A9 and thinned spinning part B10 is thinned；
After pipe shear spinning, inequal end will form in the free end that spinning part A9 and thinned spinning part B10 is thinned
Mouthful, it is unfavorable for control of the subsequent closing in spinning to dimensional accuracy, port need to be processed on lathe, it is ensured that notch is neat,
For the pipe B8 for forming head B5 and bottle body 4, smooth working process is carried out to 4 outer surface of bottle body.
Closing in spinning: S4 carries out closing in spinning to thinned spinning part A9 and thinned spinning part B10, obtains closing in spinning part A
With closing in spinning part B；End socket A2, the gripping section A that closing in spinning part A is one of the forming, the bottle that closing in spinning part B is one of the forming
Body 4, end socket B5 and gripping section B；Specific steps are as follows: S41, requires according to the type face of end socket A2 and end socket B5, setting is received
The running track of spinning roller and the relevant parameters such as the revolving speed of spinning process and feeding of mouth spinning machine；Technological parameter is as follows:
The speed of mainshaft: 180r/min；
Feed speed: 200mm/min；
S42 clamps the thinned rotation for forming head A2 and end socket B5 by the clamping tool of closing in spinning machine respectively
Casting die A9 and thinned spinning part B10 then preheats thinned spinning part A9 and thinned spinning part B10；Temperature control passes through
It is realized by the infrared radiation thermometer real-time monitoring and heating system real-time monitoring of calibration curve；Closing in spinning heating and temperature control
At 900~1100 DEG C.
S43 executes multi-pass closing in spinning program, while carrying out concurrent heating to pipe, is automatically performed head surface and is spun into
Shape；Obtain integrally formed end socket A2, gripping section A and integrally formed bottle body 4, end socket B5 and gripping section B；Spinning roller is along axis
It is gradually run from product bigger diameter end to miner diameter end, by the closing in spinning of five passages, thinned spinning part is made to wait for closing in processing district
Gradually to the shape approximation of head surface, finally meet the requirements outer mold surface, and there are a small amount of machining allowance.
S44 carries out bottleneck A1 and bottleneck B6 mould pressing to end socket A2 and end socket B5 respectively.
There is head surface bottleneck structure to need the ruler according to bottleneck in the running track of every a time editor spinning roller
It is very little to add 3 dextrorotation, derotation technique in its front-rear position, so that reserved material is sufficiently accumulated to position of bottleneck pre- to complete
Forming, entirely close up spinning process, and the forming process signal of head surface and bottleneck is as shown in figure 13.
Solution treatment: S5 carries out vacuum solid solution processing to closing in spinning part A and closing in spinning part B, to ensure its mechanical property
It is able to satisfy requirement；
Specification is handled according to 304 stainless steel hots, closing in spinning finished product is carried out using following heat treating regime
Heat treatment, to promote the mechanical property of material, reduce residual stress:
Equipment for Heating Processing: glowing furnace, temperature-controlled precision are not more than ± 5 DEG C；
Heating mode: it heats up with furnace；
Holding temperature: 1060 DEG C；
Soaking time: 1h；
Protective atmosphere: nitrogen；
The type of cooling: furnace cooling.
S6 is machined shaping: respectively to the envelope head profile of closing in spinning part A and closing in spinning part B after solution treatment
It is machined, and cuts gripping section A and gripping section B, obtain integrally formed end socket A2, bottleneck A1 and integrally formed
Bottle body 4, end socket B5 and bottleneck B6；Specific steps are as follows:
S61 carries out turnery processing to the inner and outer surfaces of closing in spinning part A and closing in spinning part B respectively, obtains bottleneck A1
With bottleneck B6；
S62 obtains transfer port A and transfer port B respectively to the simultaneously machining internal thread that drill at bottleneck A1 and bottleneck B6；
S63 cuts gripping section A and gripping section B respectively, obtains integrally formed end socket A2, bottleneck A1 and integrally formed
Bottle body 4, end socket B5 and bottleneck B6, make it meet welding requirements.
S7, connection: end socket A2 and bottle body 4 are attached, specific steps are as follows:
End socket A2 and the correspondence of bottle body 4 are welded as a whole by S71 using the welding manner of argon arc welding；
S72 detects the weld seam 3 between end socket A2 and bottle body 4, it is ensured that the use that weld seam 3 meets high-temperature bearing is wanted
It asks.
Welding procedure is evaluated by multinomial detection means such as tension test, hydraulic pressure, x-ray detection, helium mass spectrums, to test
Card weld seam 3 meets the requirement of high-temperature bearing.
In conclusion the gas cylinder product prepared using thin-wall stainless steel gas cylinder manufacturing process provided by the invention, wall thickness are equal
Even, appearance is good, and reconditioning quality is small, and overall weight compares pure welding steel gas cylinder and substantially mitigates 50% or more, and manufacturing cost is significant
It reduces；The integral forming for realizing side end socket and bottle body reduces by 1 weld seam, simultaneously because product wall thickness is thin, another end seal
Head is small with the heat affected area of bottle body weld seam, by carrying out strict control with bottle body weld heat-affected zone to other end end socket and welding
After carry out multinomial welding quality inspection, so that the leftover problem that gas easily leaks under more weld seam states has been obtained very big improvement；Gas cylinder
Whole to use spinning processing method, mechanization degree is high, and the equipment that forms a complete production network and land occupation are few, and working environment is preferable, is effectively reduced
Influence of the manual operation to product batch quality of production consistency, high production efficiency, can be well adapted for short cycle, it is high from
The engineering of dynamicization degree produces；Meanwhile by rotary pressing processing, product grains tissue can be refined in all directions, is especially sealed
Head and its bonding pad with bottle body, grain size number highest can be refined to 7-8 grades, significantly improve the mechanical property of gas cylinder entirety
With high-temperature service reliability.
The above description is only a preferred embodiment of the present invention, is not intended to restrict the invention, for those skilled in the art
For member, the invention may be variously modified and varied.All within the spirits and principles of the present invention, it is made it is any modification,
Equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of manufacturing process of thin-wall stainless steel gas cylinder, the thin-wall stainless steel gas cylinder are added by pipe by the manufacturing process
Work forms, and the thin-wall stainless steel gas cylinder includes integrally formed end socket A, bottleneck A and integrally formed bottle body, end socket B and bottle
Mouth B, which is characterized in that the manufacturing process includes the following steps:
Blanking: S1 prepares pipe to be processed, respectively pipe A and pipe B；
S2, the preliminary spinning of pipe are thinned: carrying out spinning respectively to pipe A and pipe B and be thinned；
S3, the shaping of pipe end face: the end to be closed up of the pipe shaped after spinning is thinned is machined, it is ensured that wait close up
The notch of end is neat, to obtain that spinning part A and thinned spinning part B is thinned；
Closing in spinning: S4 carries out closing in spinning to thinned spinning part A and thinned spinning part B, obtains closing in spinning part A and closing in
Spinning part B；End socket A, the gripping section A that closing in spinning part A is one of the forming, bottle body, the end socket that closing in spinning part B is one of the forming
B and gripping section B；
Solution treatment: S5 carries out vacuum solid solution processing to closing in spinning part A and closing in spinning part B respectively；
S6 is machined shaping: carrying out respectively to the envelope head profile of closing in spinning part A and closing in spinning part B after solution treatment
Machining, and gripping section A and gripping section B are cut, obtain integrally formed end socket A, bottleneck A and integrally formed bottle body, envelope
Head B and bottleneck B；
Connection: S7 end socket A is attached with bottle body.
2. the manufacturing process of thin-wall stainless steel gas cylinder as described in claim 1, which is characterized in that the step S1 is specifically included
Following steps:
S11 chooses drawn tube as blank tube material；
Drawn tube is processed into pipe A and pipe B by turnery processing by S12；
S13, pipe A resulting to turnery processing and pipe B are heat-treated, and to reduce the intensity of pipe A and pipe B, are met
Shear spinning processing request.
3. the manufacturing process of thin-wall stainless steel gas cylinder as described in claim 1, which is characterized in that the step S2 is specifically included
Following steps:
S21, by the uniform coating lubricating oil in outer surface of the inner surface and mould pressing mold of pipe A and pipe B, to guarantee passing through
The internal surface of bloom crossed after spinning is thinned does not scratch；
Pipe is slowly inserted in mould pressing mold under the action of tail top and binder disk by S22, until pipe back cover be spun into
Shape die face is compressed to complete pipe installation；
S23 carries out shear spinning to pipe A and pipe B respectively with dextrorotation outside spinning technique, pipe A and pipe B is thinned.
4. the manufacturing process of thin-wall stainless steel gas cylinder as claimed in claim 3, which is characterized in that the step S23 is specifically wrapped
Include following steps:
S231 carries out shear spinning to pipe A and pipe B respectively with dextrorotation outside spinning technique, subtracts pipe A and pipe B integrally
It is thin；
The non-shaped segment that thickens of S232, pipe A and pipe B after entirety is thinned respectively are carried out repeatedly with dextrorotation outside spinning technique
Shear spinning is thinned, described non-one end for thickening shaped segment and being located at the nearly gripping section of pipe.
5. the manufacturing process of thin-wall stainless steel gas cylinder as described in claim 1, which is characterized in that the step S4 includes as follows
Step:
The running track of the spinning roller of closing in spinning machine and the revolving speed of spinning process and feeding parameter is arranged in S41；
S42, clamped respectively by the clamping tool of closing in spinning machine for forming head A and end socket B thinned spinning part A and
Spinning part B is thinned, then thinned spinning part A and thinned spinning part B are preheated；
S43 executes multi-pass closing in spinning program, while carrying out concurrent heating to thinned spinning part A and thinned spinning part B, automatic complete
At head surface mould pressing, integrally formed end socket A, gripping section A and integrally formed bottle body, end socket B and gripping section are obtained
B；
S44 carries out the spinning preform of bottleneck A and bottleneck B to end socket A and end socket B respectively.
6. the manufacturing process of thin-wall stainless steel gas cylinder as described in claim 1, which is characterized in that the step S6 is specifically included
Following steps:
S61 carries out turnery processing to the inner and outer surfaces of closing in spinning part A and closing in spinning part B respectively, obtains bottleneck A and bottleneck
B；
S62 carries out drilling processing to bottleneck A and bottleneck B respectively, obtains transfer port A and transfer port B；
S63 cuts gripping section A and gripping section B respectively, obtain integrally formed end socket A, bottleneck A and integrally formed bottle body,
End socket B and bottleneck B.
7. the manufacturing process of thin-wall stainless steel gas cylinder as described in claim 1, which is characterized in that the step S7 is specifically included
Following steps:
End socket A and bottle body correspondence are welded as a whole by S71 using welding manner；
S72 detects the weld seam between end socket A and bottle body, it is ensured that weld seam meets the requirement of high-temperature bearing.
8. the manufacturing process of thin-wall stainless steel gas cylinder as described in claim 1, which is characterized in that made in the manufacturing process
It is standby go out the structure of the thin-wall stainless steel gas cylinder include:
Bottle body, the bottle body are one cylindric；
End socket A, the end socket A are half spherical shape convex head, and the edge of the end socket A and one end of bottle body connect；
End socket B, the end socket B are half spherical shape convex head, and the edge of the end socket B and the other end of bottle body connect；
Bottleneck A, the bottleneck A protrude from the spherical of end socket A, and the bottleneck A is provided with transfer port A；
Bottleneck B, the bottleneck B protrude from the spherical of end socket B, and the bottleneck B is provided with transfer port B.
9. the manufacturing process of thin-wall stainless steel gas cylinder as claimed in claim 1 or 8, which is characterized in that the thin-wall stainless steel
The bottle body of gas cylinder is 60~120mm, the length of the thin-wall stainless steel gas cylinder with a thickness of 0.8~1.2mm, the diameter of the bottle body
It is 400~850mm, the end socket A and end socket B with a thickness of 0.8~3mm.
10. the manufacturing process of thin-wall stainless steel gas cylinder as claimed in claim 7, which is characterized in that the welding manner is argon
Arc-welding.
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