CN1171513A - Cap for gas cylinder and its manufacturing method, and gas cylinder and its manufacturing method - Google Patents
Cap for gas cylinder and its manufacturing method, and gas cylinder and its manufacturing method Download PDFInfo
- Publication number
- CN1171513A CN1171513A CN96121772A CN96121772A CN1171513A CN 1171513 A CN1171513 A CN 1171513A CN 96121772 A CN96121772 A CN 96121772A CN 96121772 A CN96121772 A CN 96121772A CN 1171513 A CN1171513 A CN 1171513A
- Authority
- CN
- China
- Prior art keywords
- mentioned
- rise part
- valve
- cap
- 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.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 claims abstract description 25
- 239000000463 material Substances 0.000 claims abstract description 11
- 238000002788 crimping Methods 0.000 claims description 17
- 230000002093 peripheral effect Effects 0.000 claims description 13
- 238000012423 maintenance Methods 0.000 claims description 10
- 230000015572 biosynthetic process Effects 0.000 claims description 8
- 238000004049 embossing Methods 0.000 claims description 4
- 238000013138 pruning Methods 0.000 claims description 4
- 238000003825 pressing Methods 0.000 claims description 3
- 238000005452 bending Methods 0.000 claims description 2
- 238000003860 storage Methods 0.000 claims 1
- 239000007789 gas Substances 0.000 description 33
- 239000002737 fuel gas Substances 0.000 description 5
- 239000007769 metal material Substances 0.000 description 4
- 239000000446 fuel Substances 0.000 description 3
- 230000004807 localization Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 1
- 230000035622 drinking Effects 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000005028 tinplate Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- 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
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/04—Arrangement or mounting of valves
-
- 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
- F17C2201/00—Vessel construction, in particular geometry, arrangement or size
- F17C2201/01—Shape
- F17C2201/0104—Shape cylindrical
- F17C2201/0109—Shape cylindrical with exteriorly curved end-piece
-
- 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
- F17C2201/00—Vessel construction, in particular geometry, arrangement or size
- F17C2201/01—Shape
- F17C2201/0104—Shape cylindrical
- F17C2201/0119—Shape cylindrical with flat end-piece
-
- 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
- F17C2201/00—Vessel construction, in particular geometry, arrangement or size
- F17C2201/05—Size
- F17C2201/058—Size portable (<30 l)
-
- 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
-
- 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
- F17C2209/22—Assembling processes
- F17C2209/224—Press-fitting; Shrink-fitting
-
- 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
- F17C2209/23—Manufacturing of particular parts or at special locations
- F17C2209/234—Manufacturing of particular parts or at special locations of closing end pieces, e.g. caps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Damping Devices (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The aim of the present invention is to provide a manufacturing method for a can cover and a gas cylinder can which can improve work efficiency by providing a proper work content and order in each part of the can cover, and avoiding deformation of a molded part in the preceding process by receiving an influence of the following process. A plate material is blanked, to form a cup 34 which flange, a rise up part 7 is formed by drawing work of the cup 34 with flange, a valve holding cylinder 15 of a valve holding part is formed in its central part, a holding hole 4 holding a valve mechanism is drilled in the center of the valve holding cylinder 15, an edge part 16 of the holding hole 4 is raised, the raised edge part 16 is folded to the outside, and finally, a positioning hollow part 8 is formed in the rise up part.
Description
(trade name: cassette cooker) cover of etc. gas holder and manufacture method thereof also relate to the gas holder and the manufacture method thereof that adopt this cover to the present invention relates to be configured for the portable type gas range.
Existing gas holder 21 is as Fig. 9 and shown in Figure 10, and flange 6 crimpings of cover 22 are fastened on the upper end portion of tank body 2, and valve system 5 is installed on cover 22.The jar inner filling pressurized fuel gas.Cover 22 by central part the assembled cap 31 of valve system 5 is installed and 32 two parts of connecting cover that crimping is fastened on its peripheral portion 33 constitute.The L font cavity of using from valve system 5 taking-up fuel gas 12 stretches into a jar inside.
Gas holder 21 is placed in the stove with the accumbency state, opens valve system 5 in the time of taking out fuel, and fuel just sprays from nozzle by L font cavity 12 and valve system 5.This portable type gas holder 21 will fuel tube be connected on the stove can use gas range, has been widely used in eating and drinking establishment and general family.
But in this gas holder 21, fuel gas is divided into liquid layer portion and gas-bearing formation portion, and the taking-up of fuel gas must be taken out from gas-bearing formation portion, so L font cavity 12 must be at gas-bearing formation portion opening.That is to say that when gas holder was placed in the stove, L font cavity 12 must be positioned at the vertical direction that deflection has gas-bearing formation portion.
That is, when gas holder 21 is placed in the stove with the accumbency state, must locate about it.In order to carry out this location, existing portable type gas holder 21 is to form flange 27 on assembled cap, and the part of this flange 27 is cut formation notch part 28, as the joining portion of location usefulness.
This notch part 28 is that the plate stamping with assembled cap 31 forms.In addition, as previously mentioned, cover 22 is made of assembled cap 31 and 32 two parts of connecting cover, in order to make this two parts, carry out jagged 28 assembled cap 31 crimpings are fastened to processing on the connecting cover 32.In addition, when the opening portion of the connecting cover 32 that is formed for the fastening assembled cap 31 of crimping, the stamping material of this opening portion goes out of use.So, in the improvement of still needing aspect saving material and the cost.
The present invention makes in view of the above problems, and its purpose is to provide a kind of cover easy to use, easy to manufacture and manufacture method thereof, and a kind of gas holder and manufacture method thereof that adopts this cover is provided.In the cover manufacture method of the present invention, the processing content of each one of cover and order are suitable, and the part that can avoid being shaped in preceding operation is subjected to the influence of back operation and is out of shape the raising efficiency of operation.In addition, be used to install valve system the hole dimensional accuracy and be used for also can avoiding the influence of other working procedure processing with the dimensional accuracy of the fastening flange of tank body crimping.In addition, in many operations, also can reduce the fatigue of metallic material.
Fig. 1 is the profile diagram of cover of the present invention.
Fig. 2 is the partial perspective view of cover shown in Figure 1.
Fig. 3 is the profile diagram of another cover of the present invention.
Fig. 4 is the partial perspective view of cover shown in Figure 3.
Fig. 5 is the plotted curve of the interior pressure and the cover addendum modification relation of expression jar.
Fig. 6 is that the explanatory drawing of jar manufacturing process is covered in expression the present invention.
Fig. 7 is the longitudinal plane exploded view of expression valve system.
Fig. 8 is that expression is assembled into process chart on the cover with valve system.
Fig. 9 is the longitudinal plane explanatory drawing of existing cover.
Figure 10 is the plane explanatory drawing of cover shown in Figure 9.
Below, embodiments of the present invention will be described in detail with reference to the accompanying drawings.Gas holder and cover are described earlier.Among Fig. 1 and Fig. 2,1 expression gas holder, gas holder 1 is to constitute by the upper end that cover 2 crimpings is fastened to tank body 3.Cover 2 have all-in-one-piece rise part 7 and below it continuous expansion open cylindrical skirt 10.Rise part 7 has valve holding part 9, has at the top, center of this valve holding part 9 to keep with hole 4, and valve system 5 is chimeric and be bearing in this maintenances usefulness hole 4.Peripheral portion flange 6 place's crimpings of 10 are fastened on the upper end portion of tank body 3 in the skirt section for lid jars 2.
Around the valve holding part 9 of cover 2, form the rise part 7 of a circle dike shape, a position on these rise part 7 borders is formed with the recess 8 of location usefulness.
The end face 7a of rise part 7 is the plane substantially, forms the recess 14a of annular between valve holding part 9 and rise part 7.
The inner filling of gas holder 1 pressurized fuel gas.L font cavity 12 stretches into inside from valve system 5.Gas holder 1 is placed in the gas range with the accumbency state.At this moment, the location of gas holder 1 is chimeric with mating part 11 with the location of recess 8 and stove (figure does not show), like this, and about the gas holder 1 of location.
This location does not connect rise part 7 with recess 8, can be with recessed one of the external lateral portion of rise part 7 as Fig. 1 and Fig. 2; Also can be as shown in Figures 3 and 4 like that with the complete crosscut of the part of rise part 7.Under Fig. 3 and situation embodiment illustrated in fig. 4, the end face 7b of rise part 7 is curved surface substantially, and the bottom tegmental wall of the annular recess 14b between valve holding part 9 and the rise part 7 is a curved surface.
Liquid gas in filling in the gas holder, is the container of pressing in bearing.When interior pressure, pressure is toward top pushing cover, and what understand some distortion, and the degree of distortion is the smaller the better.
Fig. 1 and cover shown in Figure 3 are respectively 2 embodiments of the present invention, and this cover crimping is fastened on the tank body 3.Cover 2 is tin plate lids of external diameter 76mm, thickness of slab 0.375mm.High pressure water sent in the jar pressurize.Measure at this moment pressure and the A point addendum modification of rise part 7 and the relation of interior pressure.Its result as shown in Figure 5.
Line C represents the situation of cover shown in Figure 3, and line D represents the situation of cover shown in Figure 1.From scheming as seen, cover shown in Figure 3 is better.But in practical application, the situation of cover shown in Figure 3 or the situation of cover shown in Figure 1 all can be used.
In addition, the tegmental wall shape of annular recess 14a, the 14b between the end face shape of rise part 7 and valve holding part 9 and the rise part 7 etc. can be made different shape.
On the cover 2 of the invention described above, its localization part does not form the sheet material gap, but the sheet material plastic deformation is formed, so easy to manufacture.And, because sheet material is unnotched continuous shape, so, even light sheet also can have big intensity.Simultaneously, this cover is an integral body, does not resemble the existing cover to engage with assembled cap and connecting cover to form, and this respect also can have big intensity.
Yet key is the manufacture method of this kind cover 2.This cover 2 is that assembled cap 31 and 32 two parts of connecting cover in the existing cover 22 (Fig. 9, Figure 10) are integrated, and makes parts.Like this, it is complicated that its structure becomes, and the content of each forming process and order thereof need be rethought.If the processing content of each one and order are inappropriate, then the part that is shaped in the operation of front can be subjected to the influence of back operation and be out of shape, and must revise etc., and operating efficiency is reduced.In addition, be used to install valve system the hole dimensional accuracy and to be used for dimensional accuracy with the fastening flange of tank body crimping be to keep the key factor of pressing in the gas holder, how to guarantee that these dimensional accuracies are not subjected to the influence of other operation, also be the problem that a need is considered.Moreover, in a plurality of operations, carry out processing repeatedly, the fatigue that how to reduce metallic material also is the problem that a need is considered.
The following describes the manufacture method of cover 2.As shown in Figure 6, order is carried out following operation: sheet material is carried out punching press, and (the 1st drawing sequence a) to form flanged cap 34; Flanged cap 34 is carried out pull and stretch processing, form rise part 7 (the 2nd drawing sequence b); Prune flange 6 (pruning operation c); Bending skirt section 10 forms kink 35 (the 3rd drawing sequence d) between skirt section 10 and flange 6; But this pruning operation c and the 3rd pull and stretch d operation are not necessarily leaveed no choice but carry out in this stage.The valve that forms valve holding part 9 on the central part of rise part 7 keeps tube 15 (valve keeps tube to form operation E); The maintenance that keeps the central authorities of tube 15 to wear being used for maintaining valve mechanism 5 at valve is with hole 4, simultaneously with the peripheral portion crimping (perforation process h) of flange 6; To keep with edge part 16 erect in hole 4 and further with the peripheral portion crimping (peripheral portion is erect operation i) of flange 6; With the peripheral portion 16 of erect lateral buckling (flanging operation j) outward; The recess 8 (embossing operation K) of the location usefulness that on rise part 7, is shaped.Wherein, valve keeps tube to form operation E can be divided into three operations, promptly, the center of top of rise part 7 descended and be formed with the 1st contrary drawing sequence e of round-ended cylinder shape recess 17, the central part at the end 18 of cylindrical recess 17 is risen, the valve of valve holding part 9 is kept tube 15 the preformed the 2nd contrary drawing sequence f and keeps tube 15 to carry out pull and stretch processing and formal the 4th drawing sequence g that is shaped to preformed valve.In addition, embossing operation K can be divided in the above-mentioned location of preforming on the rise part 7 and use the precreping operation k of recess 8 and the formal formal embossing operation 1 of location with recess 8 that be shaped on rise part 7.In addition, because above-mentioned perforation process h and can separate with the manufacturing procedure of other parts in the peripheral portion crimping operation that peripheral portion is erect the lip part 6 that carries out among the operation i and to carry out, so, can carry out in any stage that flange is pruned after finishing.
The following describes the manufacture method of gas holder.Valve system 5 is installed on the valve holding part 9 of cover 2, perimeter flange 6 place's crimpings of 10 are fastened to the upper end portion of tank body to the cover 2 that valve system 5 will be installed again in the skirt section, have so just made gas holder 1.As shown in Figure 7, valve system 5 has valve 36 and L font cavity 12, and valve 36 is made of valve rod 37, valve rod rubber ring 38 and spring 41.L font cavity 12 is to connect axial gas passageway 42.With this valve system 5 be installed on the cover 2 operation as shown in Figure 8, the maintenance of valve holding part 9 that earlier valve 36 is inserted and secured on cover 2 is with (Fig. 8 a) in the hole 4, from the inboard of cover 2 L font cavity 12 is rabbeted on valve 36 (Fig. 8 b) again, at last, with valve holding part 9 ca(u)lks of cover, L font cavity 12 is rabbeted on cover 2 (Fig. 8 c).
Cover of the present invention owing to its localization part does not form the sheet material gap, but forms the sheet material plastic deformation, so, do not form sharp seamed edge at localization part, safe in utilization and convenient.And sheet material is unnotched continuous shape, so, even light sheet also has big intensity.In addition, because cover of the present invention is an integral body, not resembling the existing cover is to engage with connecting cover with assembled cap to form, so, on this point, also can keep big intensity, and manufacturing is also easy.Therefore, cover of the present invention is easy to use and easy to manufacture.
In addition, in the cover manufacture method of the present invention, because cover 2 of the present invention is that assembled cap 31 and connecting cover 32 these two parts in the existing cover are become an one-piece element, though it is complicated that structure becomes, but the processing of the valve system mounting hole that dimension precision requirement is high, the crimping of flange are processed and are located the final stage (i of Fig. 6, j, k, l) that nearly all concentrates on whole operations with the operations such as processing of recess, so their processing and dimensional accuracy are not subjected to the influence of other operation.In addition, though the structure of cover is complicated, because the operation minimizing, so the fatigue of metallic material is also few.
Therefore, according to cover manufacture method of the present invention and adopt the gas holder and the manufacture method thereof of this cover, the processing content of each one of cover and order suitably, the part that is shaped in preceding operation can not be subjected to the influence of back operation and be out of shape, and can improve operating efficiency.In addition, the dimensional accuracy of valve system mounting hole and with the dimensional accuracy of the fastening flange of tank body crimping etc. can avoid being subjected to the influence of other operation.In addition, in many operations, also can reduce the fatigue of metallic material.
Claims (8)
1. cap for gas cylinder, it is characterized in that, tegmental wall have stretch out in the outside rise part and with continuous skirt section, this rise part lower end, and be integral, valve holding part upper support at above-mentioned rise part center valve system, a position forms the location and uses recess on the border, upper end portion of rise part, and cover is crimped the upper end portion that is fastened on tank body at the peripheral portion place in above-mentioned skirt section.
2. cap for gas cylinder as claimed in claim 1 is characterized in that the end face of above-mentioned rise part is a curved surface.
3. cap for gas cylinder as claimed in claim 1 or 2 is characterized in that, the tegmental wall between above-mentioned valve holding part and above-mentioned rise part is a curved surface.
4. the manufacture method of a cap for gas cylinder, the tegmental wall of this cap for gas cylinder have stretch out in the outside rise part and with continuous skirt section, this rise part lower end, and be integral, valve holding part upper support at above-mentioned rise part center valve system, a position forms the location recess on the border, upper end portion of rise part, cover is crimped the upper end portion that is fastened on tank body at the peripheral portion place in above-mentioned skirt section, it is characterized in that, comprise following operation successively: pressing sheet material, the 1st drawing sequence of formation flanged pin cap; Above-mentioned flanged pin cap is carried out pull and stretch processing, form the 2nd drawing sequence of above-mentioned rise part; Form the valve maintenance tube formation operation of the valve maintenance tube of above-mentioned valve holding part in the central authorities of above-mentioned rise part; Central authorities at above-mentioned maintenance tube wear the perforation process that the hole is used in the maintenance that is used for maintaining valve mechanism; Above-mentioned maintenance is erect operation with the edge part of the edge part erect in hole; With the edge part of the above-mentioned erect bending operation of lateral buckling outward; On above-mentioned rise part, form the embossing operation of location with recess.
5. the manufacture method of cap for gas cylinder as claimed in claim 4, it is characterized in that, form between the operation at above-mentioned the 2nd drawing sequence and above-mentioned maintenance tube, comprise the pruning operation of pruning above-mentioned flange and bend above-mentioned skirt section, the 3rd drawing sequence of formation kink between skirt section and flange.
6. as the manufacture method of claim 4 or 5 described cap for gas cylinder, it is characterized in that above-mentioned valve keeps tube to form operation and comprises following 3 operations successively: the center of top of above-mentioned rise part is descended, be formed with the 1st contrary drawing sequence of round-ended cylinder shape recess; The central authorities of above-mentioned cylindrical recess are promoted, be pre-formed the 2nd contrary drawing sequence of the maintenance tube of above-mentioned valve holding part; Keep tube to carry out pull and stretch processing and formal the 4th drawing sequence that is shaped to above-mentioned preformed valve.
7. the manufacture method of a gas holder, it is characterized in that, the tegmental wall of this cap for gas cylinder have stretch out the outside rise part and with continuous skirt section, this rise part lower end, and be integral, valve holding part upper support at above-mentioned rise part center valve system, a position forms the location recess on the border, upper end portion of rise part, cover is crimped the upper end portion that is fastened on tank body at the peripheral portion place in above-mentioned skirt section, on the valve holding part at the above-mentioned rise part center of this cap for gas cylinder, valve system is installed, its mounting point is that above-mentioned location is aimed at recess and the gas conveying end that is formed at valve system, and the cap for gas cylinder that above-mentioned valve system will be installed again is fastened on the upper end portion of tank body at the peripheral portion place in above-mentioned skirt section crimping.
8. gas holder, the tegmental wall of this cap for gas cylinder have stretch out in the outside rise part and with continuous skirt section, this rise part lower end, and be integral, valve holding part upper support at above-mentioned rise part center valve system, a position forms the location and uses recess on the border, upper end portion of rise part, this gas storage is fastened on the upper end portion of tank body at the peripheral portion place in above-mentioned skirt section with the cover crimping.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP330993/95 | 1995-11-27 | ||
| JP33099395A JPH09144997A (en) | 1995-11-27 | 1995-11-27 | Cover for gas cylinder can |
| JP8220711A JPH1047599A (en) | 1996-08-02 | 1996-08-02 | Manufacture of can cover for gas cylinder can, manufacture of gas cylinder can and gas cylinder can |
| JP220711/96 | 1996-08-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1171513A true CN1171513A (en) | 1998-01-28 |
Family
ID=26523874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN96121772A Pending CN1171513A (en) | 1995-11-27 | 1996-11-26 | Cap for gas cylinder and its manufacturing method, and gas cylinder and its manufacturing method |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR970028043A (en) |
| CN (1) | CN1171513A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101232959B (en) * | 2005-08-12 | 2011-11-23 | 杰富意钢铁株式会社 | Can body for two-piece can made of laminate steel sheet and method for manufacture thereof |
| CN110548789A (en) * | 2018-06-04 | 2019-12-10 | 马自达汽车株式会社 | Press forming method and press forming apparatus |
-
1996
- 1996-11-26 CN CN96121772A patent/CN1171513A/en active Pending
- 1996-11-27 KR KR1019960058134A patent/KR970028043A/en not_active Application Discontinuation
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101232959B (en) * | 2005-08-12 | 2011-11-23 | 杰富意钢铁株式会社 | Can body for two-piece can made of laminate steel sheet and method for manufacture thereof |
| CN110548789A (en) * | 2018-06-04 | 2019-12-10 | 马自达汽车株式会社 | Press forming method and press forming apparatus |
| CN110548789B (en) * | 2018-06-04 | 2021-05-07 | 马自达汽车株式会社 | Press forming method and press forming apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| KR970028043A (en) | 1997-06-24 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |