CN1026470C - Double-layer spherical container integral expansion making method - Google Patents
Double-layer spherical container integral expansion making method Download PDFInfo
- Publication number
- CN1026470C CN1026470C CN 91102339 CN91102339A CN1026470C CN 1026470 C CN1026470 C CN 1026470C CN 91102339 CN91102339 CN 91102339 CN 91102339 A CN91102339 A CN 91102339A CN 1026470 C CN1026470 C CN 1026470C
- Authority
- CN
- China
- Prior art keywords
- double
- shell
- internal layer
- spherical container
- layer
- 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.)
- Expired - Fee Related
Links
Landscapes
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
The present invention relates to a method for making a double-layer spherical container, which is suitable for making a high pressure double-layer spherical container having the advantages of corrosion prevention, heat insulation, cold insulation, heat insulation and thick wall. Flat surface plate materials are first assembled and welded into a closed non-spherical double-layer shell body in advance by the present invention, and then, the interior (and an interlayer) of the closed non-spherical double-layer shell body is filled with liquid pressure in a certain mode and according to a certain rule to be pressurized. Finally, an attached or gapped double-layer spherical container is obtained. The technological method does not need a mould or a large pressing machine, and has the advantages of simple working procedure, cost reduction, high assembly precision and small residual stress. The present invention is suitable for construction in a factory and on site.
Description
The present invention relates to a kind of manufacture method of double-layer spherical container.
At present, the double-layer spherical container manufacturing is shaped relatively more difficult, still there is not the precedent that adopts monolithic molding to make double-layer spherical container both at home and abroad, assembly welding becomes the method for double-layer spherical container behind the spherical limb of domestic and international all employings elder generation's shaping, main pressure sintering or the cold-press moulding method of adopting is pressed into spherical limb and end socket with plate, then they are assembled successively welding or wrap up into double-layer spherical container with bundling machine, material sees reference: 1. Beijing Metal Structure Factory, universal machine research institute, the trial-production and the research of double-deck hemispherical head, chemical industry and universal machine, 1974(5-6) PP1-3; 2. Б. О. Б e л о р у с e ц, И з г о т о в л e н и e с ф e р н ч e с к н х н з о т e р м н ч e с к н х р а з e р в у а р о в ц л я х р а н e н и я к р н о г e н н ы х п р о ц у к т о в, Ф и м и ч e с к о e н Н e ф т я н о e М а щ и н о с т р о н e м e No.7(1984); 3. old step on rich, full double-decker high-pressure bottle, chemical industry and universal machine, 1978, PP61-65; 4. general institute, " external low-temperature (low temperature) vessel welding ", 1975.9, about 400 bar pressure liquid oxygen of economic security and some problems of liquid hydrogen tank design.
Pressure sintering or cold-press moulding manufactured double-layer spherical container, utilize large pressing machine and die set exactly, plate after the blanking is pressed into the Spherical Tank Shell Plates of different size, with their rule assembly welding or wrappings in certain sequence together, forms double-layer spherical container then.The shortcoming of the method is to need large pressing machine and complete expensive mould, and pressure sintering also needs blank is heated, and labour intensity is big, needs firing equipment, and the Spherical Tank Shell Plates surface quality after the compacting is poor, and the attenuate amount is big; The press tonnage that cold-press method needs is big, and Spherical Tank Shell Plates springback capacity height is difficult to control.This method requires the cutting stock precision height, and the Spherical Tank Shell Plates precision height after the compacting is difficult to guarantee assembly precision, spherical shell welding residual stress height, and the production cycle is long, and the cost height is unfavorable for the manufacturing of changeable product of small lot and major diameter double-layer spherical shell.
Before this, once the someone had proposed the whole hydroforming of single-layer spherical vessel, this method adopts the dull and stereotyped polyhedral shell of sealing, adopt no internal mold also not have the hydraulic bulging process of external mold, polyhedral shell finally is configured as football formula single-layer spherical vessel, referring to data: Wang Zhongren, spherical container shaping new technology, Chinese patent No.85106571.
The objective of the invention is to propose the method that integral expansion is made double-layer spherical container.The present invention makes double-layer spherical container become possibility in industrial extensive use, and its cost can reduce greatly.1) but with the inventive method process industry and civilian anticorrosion spherical container, internal layer is with stainless steel or aluminium alloy lining, outerly use mild steel, thereby can save precious metal, the reduction cost; 2) the inventive method can be made double-layer spherical container, helps taking adiabatic winter protection, cold insulation measure; 3) the inventive method can be made double-layer spherical container, and security is good, and averting a calamity property is broken easily, does not have fragment to fly out during explosion; 4) method of the present invention can be made double thickness squash jar, to replace single monolayer thick squash jar.
Fig. 1 is double-layer spherical container monolithic molding loading system figure.1 check valve, 2 pipelines, 3 Pressure gauges, 4 pressure-relief valves, 5 precision pressure gauges, 6 double seal housings, 7 vent valves among the figure.
Fig. 2 is the double-layer spherical container schematic diagram.
Fig. 3 is three sections batch (-type) loading curves.
Main points of the present invention are: the plate blank that earlier sheet material is slit into definite shape, by from inside to outside order plate blank assembly welding is become the double seal housing according to project organization then, the structure of this housing can be the flat-type polyhedral shell, it also can be the single-curvature housing through pre-volume, keep certain design gaps between the ectonexine housing, this gap is more than or equal to the reinforcement of weld of internal layer shell, and for the Double-layer Spherical that still keeps the gap after swollen, its outer casing is in the spot welding of inner and outer plates face corner point Fixing. At first internal layer shell inside is full of the power transmission medium of liquid or gas in the forming process, and internal layer shell is pressed syllogic interval load method (accompanying drawing 3) topping up pressurize, make internal layer shell that plasticity take place under inner pressuring load and outer casing constraint effect and become the ball bulging and become the internal layer spherical shell; For the double-layer spherical shell that needs after swollen to fit tightly, outer casing bores aperture (diameter 2-5mm) six-ten, in order to release jacket coating gas in the forming process, the distortion of outer casing is to rely on the outer swollen rigidity contact of internal layer shell and friction constraint effect, bulging is gradually by mind-set edge-diffusion in the ball plate face, plastic deformation at first takes place near the edge, and the plasticity ball bulging that becomes takes place gradually, last whole outer casing is with the internal layer shell ball distending that becomes, be configured as double-layer spherical shell, for the double-layer spherical shell that still need keep the gap after swollen, need at first be filled with certain liq or gas or flexible solid medium between its ectonexine interlayer transmits normal pressure that internal layer shell causes and internal layer and interlayer is alternately loaded, under this pressure-acting, outer casing generation plasticity bulging and become spherical outer casing.
By above process as can be seen, double Shell is in bloated ball process, and its inner housing has outer pattern, and this pattern also has certain distortion and the net shape size is arranged, the distortion of internal layer shell is subjected to internal pressure and outer casing acting in conjunction and is shaped, and is not free bulge; The friction of outer casing has material impact and constraint effect to the expansion of distortion, Thickness Distribution and the weld defect (as crackle) of internal layer; The distortion of outer casing is not the uniform internal pressure bulging but relies on the outer bloated rigidity contact pressure effect of internal layer shell and the rigidity contact zone enlarges gradually and makes outer casing that plasticity take place gradually to become to finishing under deformation of ball and the condition of enlarged its plasticity ball bulging that becomes, therefore in loading procedure, must rationally apply interior pressure according to the deformation characteristics of ectonexine housing,, part contact contactless according to the ectonexine housing with contact three phases fully and load by different loading curves, and use the dwell time in the loading procedure, promptly adopt batch (-type) Loading Method (as shown in Figure 3).For the gapped double-layer spherical shell in back that expands, just take the pressurization that hockets of inner casing, interlayer in the phase III, interlayer sealing during the internal layer pressurization, internal layer seals during the interlayer pressurization.
Master operation of the present invention is as follows:
1. get the raw materials ready.The plate metal that selection check is qualified requires the wall thickness difference little, no interlayer, then by design size on shearing machine or use cutter, or the employing additive method cuts into the planar metal plate blank of definite shape; The used blank of single-curvature housing is also needed pre-volume, pre-bending, the groove of then blank being polished.
2. assembling welding.Adopt precedence from inside to outside at first blank plate assembly welding to be become the sealing internal layer shell, and carry out inside and outside face down bonding; The housing spot welding of the assembly welding outside is fixed successively then, and keeps uniform gap.The welding of housing will meet standard GB 150-89.At last, on the sealing double Shell, weldering make topping up pipe, devices such as vent valve.
3. once check.With detector device the place weld seam is carried out flaw detection.Find that weld defect will timely repair welding and duplicate test.
4. pressurising bulging.At first charge into the power transmission medium in enclosure and interlayer before the shaping, then by designing requirement and aforementioned loading principle, with the three intersegmental Loading Method of having a rest the housing topping up being pressurizeed makes it to take place the plasticity deformation of ball that becomes and obtains the pair of lamina housing.
5. secondary check.According to national regulation, to carry out flaw detection and test of geometric precision, the application of can dispatching from the factory after the check to the double-layer spherical container after being shaped.
The present invention is the change to the double-layer spherical container forming manufacturing method, this method reformed conventional method earlier the compacting ball clack assemble the operation of welding then, and adopted hydroforming behind the first assembly welding housing, be a kind of integral forming method.
Power transmission medium of the present invention can be oil, water, compressed air or other flexible material, and pressure method can adopt topping up, inflation or other high energy rate forming pressurizations.
Double Shell of the present invention can be sealing polyhedral shell (each face is for dull and stereotyped), can be the single-curvature double Shell through pre-volume weldering system.
Use this technology and can make the double-layer spherical container of diameter 200mm to 28mm, the cost of product can reduce 30-50%, can be used for making the anticorrosion container of chemical industry relieving haperacidity, system alkali, urea and synthetic ammonia and food, system wine industry, can make the large-scale low-temperature storage tank, as liquid oxygen, liquid nitrogen, liquid hydrogen low-temperature storage tank.This technology has very big promotional value, is worth research and development.
Advantage of the present invention is as follows:
1. do not need large pressing machine and special equipment, do not need heating furnace, initial cost is few.
2. do not need die set.
3. it is simple to get the raw materials ready, and line is easy, and assembly welding is convenient, and cutting stock precision and assembly welding precision guarantee easily.
4. the manufacturing cycle lacks, and cost is low.
5. when loading owing to pressurising welding residual stress is reduced, help improving the quality of products, can remove the hydraulic pressure overload from and handle.
Embodiment: diameter 1350mm double-layer spherical container, trial-produce successfully in January, 1991, the inner and outer shell material is respectively Japanese low carbon steel plate JIS G3131SPEC and homemade low carbon steel plate BY3F, wall thickness is 3mm, bloated procapsid is four-tape terrace with edge combination housing, and the fore-clamp lamellar spacing of expanding is 8mm, and the back of expanding is the citrus fruit type double-layer spherical container, fit tightly no gap, the bulging pressure P
1=3.2MPa, P
2=4.8MPa and P
3=5.6MPa.
Claims (2)
1, a kind of manufacture method of spherical container, earlier the polyhedral shell of sealing is made in the sheet metal weldering, in housing, exert pressure, make polyhedral shell become the distortion of ball plastics and final molding is a spherical container, it is characterized in that making as follows double-layer spherical container:
A. earlier sheet metal is made the double seal housing by order weldering from the inside to the outside, keep certain interval between the ectonexine housing, this gap should be more than or equal to the reinforcement of weld of internal layer shell;
B. be full of liquid or gas in internal layer shell inside, bore 6-10 hole of aperture, aperture 2-5mm at outer casing;
C. internal layer shell is pressurizeed by three sections batch (-type)s, plastic deformation takes place in internal layer shell under the constraint effect of interior pressure and outer pattern, in the internal layer shell deformation process, the plasticity that under the situation that the outer bloated rigidity contact pressure and the no outer wall of internal layer shell retrains, also the takes place outer casing deformation of ball that becomes, the double-layer spherical shell that fits tightly inside and outside being configured as.
2, a kind of manufacture method of spherical container, earlier the polyhedral shell of sealing is made in the sheet metal weldering, in housing, exert pressure, make polyhedral shell become the ball plastic deformation and finally be configured as spherical container, it is characterized in that making as follows double-layer spherical container;
A. earlier sheet metal is made the double seal housing by order weldering from the inside to the outside, keep certain interval between the ectonexine housing, this gap should be more than or equal to the reinforcement of weld of internal layer shell;
B. fill between interlayer with liquid or gas or flexible solid medium;
C. to internal layer and alternately pressurization of interlayer, i.e. interlayer sealing during internal layer pressurization, internal layer sealing during the interlayer pressurization.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91102339 CN1026470C (en) | 1991-04-10 | 1991-04-10 | Double-layer spherical container integral expansion making method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91102339 CN1026470C (en) | 1991-04-10 | 1991-04-10 | Double-layer spherical container integral expansion making method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1065610A CN1065610A (en) | 1992-10-28 |
| CN1026470C true CN1026470C (en) | 1994-11-09 |
Family
ID=4905548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91102339 Expired - Fee Related CN1026470C (en) | 1991-04-10 | 1991-04-10 | Double-layer spherical container integral expansion making method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1026470C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102794610A (en) * | 2012-08-24 | 2012-11-28 | 沈阳黎明航空发动机(集团)有限责任公司 | Method for processing thin wall welder cases of revolving body structures |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1099332C (en) * | 1998-09-28 | 2003-01-22 | 高志芳 | Method for manufacturing cap of container |
| CN100348343C (en) * | 2005-12-30 | 2007-11-14 | 陕西科技大学 | Thermoplastic forming tech. for large-size spherical tank |
| CN102451868A (en) * | 2010-10-29 | 2012-05-16 | 中国科学院金属研究所 | Hydraulic forming method based on wave type internal-pressure-controlled loading mode |
| CN102728694B (en) * | 2012-06-30 | 2014-09-24 | 台州市航天恒通科技有限公司 | Cambered surface forming method for sealed instrument cabin of above-water mobile base station |
| CN108672541A (en) * | 2018-06-20 | 2018-10-19 | 汪川川 | A kind of metal is without mould hydraulic pressure forming method |
| CN114406613B (en) * | 2022-01-21 | 2023-03-21 | 江苏科技大学 | Laminated egg-shaped pressure-resistant shell and processing method thereof |
-
1991
- 1991-04-10 CN CN 91102339 patent/CN1026470C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102794610A (en) * | 2012-08-24 | 2012-11-28 | 沈阳黎明航空发动机(集团)有限责任公司 | Method for processing thin wall welder cases of revolving body structures |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1065610A (en) | 1992-10-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1026470C (en) | Double-layer spherical container integral expansion making method | |
| CN102155538B (en) | Can nonexpondable boiler and pressurized vessel welding hydraulic cover and manufacture method | |
| CN108843968B (en) | Aluminum alloy petroleum liquefied gas cylinder body and preparation method thereof | |
| CN106978578A (en) | A kind of aluminium alloy plate creep age forming method | |
| CN103691762A (en) | Complicated-shape double-layer pipe manufacturing method and sealing device | |
| CN102553961B (en) | Compound pipe manufacturing technology for metallurgically bonding anti-corrosion special alloy lining with pipeline steel outer sleeve | |
| CN115780626A (en) | Straight edge expanding die for end part of corrugated pipe for storage tank and forming method | |
| CN105642728B (en) | A kind of elastomeric material liquid is expanded into the device and method of shape composite bimetal pipe | |
| US20150114975A1 (en) | Conformable pressure vessel for high pressure gas storage | |
| CN100475376C (en) | Method for forming pipe fitting | |
| CN202561357U (en) | High-positive-negative-pressure-resistant polytef metal composite compensator | |
| CN1083750A (en) | High-energy wholly shaping end-closing technology without mould | |
| CN109826953A (en) | A kind of high-temperature and high-pressure sealing device | |
| CN1061551A (en) | Melon lobe formula structure dieless hydro bulging is made spherical container technology | |
| CN102261473A (en) | Metal vermiculite compound seal gasket | |
| CN206055005U (en) | A kind of normal residual heat removal exchanger sealing ring | |
| CN108443575B (en) | High-pressure multilayer composite filler for valve and manufacturing process thereof | |
| CN2254134Y (en) | Double-layer middle- and low-pressure container | |
| CN202209229U (en) | Shielded composite heater | |
| CN100366367C (en) | Method for mfg. high temp, dish spring | |
| CN201331281Y (en) | Single double-pipe heat exchanger with packing type ends | |
| Yuan et al. | Effect of the hydrobulging process on mechanical properties of spherical pressure vessels | |
| CN117053081B (en) | Production process method of integrated hydrogen storage bottle | |
| CN211451553U (en) | Low-temperature liquid reverse-filling air separation tower device | |
| CN110026671A (en) | Spherical surface end socket and its manufacturing method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |