CN103862205B - The storage device of welding protection gas - Google Patents
The storage device of welding protection gas Download PDFInfo
- Publication number
- CN103862205B CN103862205B CN201410125193.3A CN201410125193A CN103862205B CN 103862205 B CN103862205 B CN 103862205B CN 201410125193 A CN201410125193 A CN 201410125193A CN 103862205 B CN103862205 B CN 103862205B
- Authority
- CN
- China
- Prior art keywords
- roller
- curved body
- cavity
- anger
- spring
- 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.)
- Active
Links
- 238000003466 welding Methods 0.000 title claims abstract description 53
- 230000007246 mechanism Effects 0.000 claims abstract description 20
- 239000011148 porous material Substances 0.000 claims abstract description 9
- 229910000831 Steel Inorganic materials 0.000 abstract description 35
- 239000010959 steel Substances 0.000 abstract description 35
- 230000006835 compression Effects 0.000 abstract description 4
- 238000007906 compression Methods 0.000 abstract description 4
- 238000005096 rolling process Methods 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 23
- 230000001681 protective effect Effects 0.000 description 16
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 12
- 229910052786 argon Inorganic materials 0.000 description 6
- 206010057071 Rectal tenesmus Diseases 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 208000012271 tenesmus Diseases 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000005476 soldering Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052756 noble gas Inorganic materials 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/32—Accessories
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Arc Welding In General (AREA)
Abstract
The invention discloses the storage device of welding protection gas, including curved body, pre-stored chamber it is provided with in described curved body, one end of curved body connects cavity of giving vent to anger, the other end of curved body connects link plate, during work, link plate is connected with outside semitight mechanism by cross bar, the end of described cavity of giving vent to anger has pore, also include roller, described roller is arranged on pre-stored chamber and the junction of cavity of giving vent to anger, described roller is hinged with the both sides inwall in pre-stored chamber by support bar, the axle center of two rollers is connected by connecting rod, at the top in described pre-stored chamber, spring is installed, spring is connected with the middle part of connecting rod；When steel pipe contacts with curved body, roller directly contacts with outer surface of steel tube, the sliding friction between curved body and steel pipe is made to become rolling friction, and compression when spring can move on roller is continuous, continue to rise when reaching limit connecting rod to greatest extent, it is to avoid roller contacts with pre-stored cavity wall and affects the rotation of roller.
Description
Technical field
The present invention relates to a kind of argon arc welding machine, specifically refer to the storage device of welding protection gas.
Background technology
Stainless steel welded pipe requires fusion penetration through welding; oxide-free is mingled with, and heat affected area is the least, and the argon arc welding of tungsten electrode noble gas protecting has well adapting to property; welding quality is high, through welding performance is good, and its product is used widely in the industry such as chemical industry, nuclear industry and food.Speed of welding is the highest is the weak point of argon arc welding, and for improving speed of welding, foreign study develops multiple method.Wherein the welding method of the many welding torches of multi-electrode is used to apply aborning by the development of single electrode list welding torch.The general argon arc welding using three electrode welding torches, welded still pipe wall thickness S >=2mm, speed of welding improves 3-4 times than single welding torch, and welding quality is also improved.Argon arc welding can weld the steel pipe of bigger wall thickness with plasma weldering combination, additionally, the hydrogen of 5-10% in argon, then use high frequency pulse current welding power supply, it is possible to improve speed of welding.First the joint preparing welding is handled well, use the filler metal that the welding wire with 904L material of the same race does, simultaneously welding one side cold water waters weld seam, welding temperature controls below 80 DEG C, speed of welding is more than 45 ~ 50 cm per minute, weld seam breadth depth ratio is maintained between 1.5:1 ~ 2:1, weldment thickness≤12.Then acid wash passivation process is carried out at face of weld.Its advantage is to weld at low temperatures, the conversion between molecule does not occur inside 904L rustless steel, it is to avoid the phenomenon of fragility conversion, the generation of the defect such as intercrystalline corrosion, fire check when it also avoid welding, controls the bulk deformation of weldment.
Summary of the invention
It is an object of the invention to provide the storage device of welding protection gas, it is to avoid the protective gas overflowed in steel pipe seam, to bleeding around, increases the contact area of protective gas and weld seam, it is ensured that the quality of weld seam welding.
The purpose of the present invention is achieved through the following technical solutions:
The storage device of welding protection gas, including curved body, pre-stored chamber it is provided with in described curved body, one end of curved body connects cavity of giving vent to anger, the other end of curved body connects link plate, during work, link plate is connected with outside semitight mechanism by cross bar, the end of described cavity of giving vent to anger has pore, and cavity of giving vent to anger is tapered, also include roller, described roller is arranged on pre-stored chamber and the junction of cavity of giving vent to anger, described roller is hinged with the both sides inwall in pre-stored chamber by support bar, the axle center of two rollers is connected by connecting rod, at the top in described pre-stored chamber, spring is installed, spring is connected with the middle part of connecting rod.When the present invention works, curved body is connected with outside semitight mechanism by cross bar by link plate, it is ensured that the present invention obtains stable support；Pre-stored chamber is entered into by the protective gas being passed through in plug; when the amount of protective gas runs up to certain degree; protective gas has pre-stored chamber to enter into cavity of giving vent to anger; because giving vent to anger, cavity is taper; and the pore having in the end of cavity of giving vent to anger just contact point to soldering tip Yu weld seam; can ensure that protective gas has certain flow velocity and sprays from pore, increase protective gas and the contact area of contact point in the unit interval, meet the amount of protective gas required during weld seam welding；nullSteel pipe is by the in-house driven by rotating wheel being correspondingly arranged of semitight，Curved body is fitted with steel pipe，For a long time after work，All can there is bigger abrasion in steel pipe and curved body，For increasing the service life of the present invention，The inwall in pre-stored chamber is provided with roller，Roller can be under the effect of pullling of spring by link supports，When steel pipe contacts with curved body, roller directly contacts with outer surface of steel tube，Directly contacting of curved body and steel pipe can be become roller contact with steel pipe，The sliding friction between curved body and steel pipe is made to become rolling friction，Greatly reduce the degree of wear of outer surface of steel tube and curved body，And compression when spring can move on roller is continuous，When spring-compressed limit connecting rod to the limit continues to rise，Roller is avoided to contact with pre-stored cavity wall and affect the rotation of roller，Ensure being normally carried out of welding sequence.
Described connecting rod include being hinged left section and right section, left section with right section respectively axle center with two rollers be connected, spring is arranged on the hinged place of left section and right section.Connecting rod includes two parts, and connected mode is hinged, roller can be made to change direction in welding process, increase the contact area of roller and outer surface of steel tube, improve the stability that roller rotates.
Also include that position-limit mechanism, described position-limit mechanism are arranged on immediately below the hinged place of the main shaft of described roller and the inwall in pre-stored chamber.When the steel pipe that welding caliber is less, the spindle tilt of roller reduces, roller is easily and the contact internal walls in pre-stored chamber, affect the rotation of roller, the position-limit mechanism arranged can make to maintain a certain distance between roller and pre-stored cavity wall, ensure roller normal rotation at work, improve the stability of welding.
Described position-limit mechanism includes that gripper shoe, gripper shoe are arranged on pre-stored cavity wall, and is positioned at below the main shaft of roller, is provided with projection in described gripper shoe, and protruding upper surface is inclined plane.Gripper shoe is fixed on the inwall in pre-stored chamber, can be supported the main shaft of the roller of tenesmus, and the inclined plane of upper convex surface can fit with roller main shaft, can reduce the loss of roller further.
Described spring is torsionspring.
The present invention compared with prior art, has such advantages as and beneficial effect:
1, the storage device of welding protection gas of the present invention, when steel pipe contacts with curved body, roller directly contacts with outer surface of steel tube, directly contacting of curved body and steel pipe can be become roller contact with steel pipe, the sliding friction between curved body and steel pipe is made to become rolling friction, greatly reduce the degree of wear of outer surface of steel tube and curved body, and compression when spring can move on roller is continuous, when spring-compressed limit connecting rod to the limit continues to rise, roller is avoided to contact with pre-stored cavity wall and affect the rotation of roller, ensure being normally carried out of welding sequence；
2, the storage device of welding protection gas of the present invention, roller is flexibly connected with the inwall in pre-stored chamber, can adjust curved body for the welded still pipe of different model and be in close contact with outer surface of steel tube, prevent the loss of protective gas；Spring can carry out soft readjustment by pair roller, it is to avoid roller direct welding sequence once under the influence of tenesmus after welding terminates.
Accompanying drawing explanation
Accompanying drawing described herein is used for providing being further appreciated by the embodiment of the present invention, constitutes the part of the application, is not intended that the restriction to the embodiment of the present invention.In the accompanying drawings:
Fig. 1 is present configuration schematic diagram；
Fig. 2 is the structural representation in pre-stored intracavity portion；
Fig. 3 is the schematic diagram of embodiment 1；
Labelling and corresponding parts title in accompanying drawing:
1-stocking mechanism, 2-semitight mechanism, 3-steel pipe, 4-weld seam, 5-runner, 6-cross bar, 7-curved body, 8-are given vent to anger cavity, 9-link plate, 10-pore, 11-pre-stored chamber, 12-roller, 13-support bar, 14-spring, 15-gripper shoe, 16-projection, left section of 17-, right section of 18-.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, and the exemplary embodiment of the present invention and explanation thereof are only used for explaining the present invention, not as a limitation of the invention.
Embodiment 1
As Fig. 1 to Fig. 3 shows, the storage device of welding protection gas of the present invention, including curved body 7, it is provided with pre-stored chamber 11 in described curved body 7, one end of curved body 7 connects cavity 8 of giving vent to anger, the other end of curved body 7 connects link plate 9, during work, link plate 9 is connected with outside semitight mechanism 2 by cross bar 6, the described end giving vent to anger cavity 8 has pore 10, and cavity 8 of giving vent to anger is tapered, also include roller 12, described roller 12 is arranged on pre-stored chamber and the junction of cavity of giving vent to anger, described roller is hinged with the both sides inwall in pre-stored chamber 11 by support bar 13, the axle center of two rollers 12 is connected by connecting rod, at the top in described pre-stored chamber 11, spring 14 is installed, spring 14 is connected with the middle part of connecting rod；Described connecting rod includes left section 17 and right section 18 be hinged, left section 17 with right section 18 respectively axle center with two rollers 12 be connected, spring 14 is arranged on left section 17 and the hinged place of right section 18；Also include that position-limit mechanism, described position-limit mechanism are arranged on immediately below the hinged place of the main shaft of described roller 12 and the inwall in pre-stored chamber 11；Described position-limit mechanism includes that gripper shoe 15, gripper shoe 15 are arranged on the inwall of pre-stored chamber 11, and is positioned at below the main shaft of support bar 13, is provided with protruding 16 in described gripper shoe 15, and the upper surface of protruding 16 is inclined plane.
When the present invention works, curved body 7 is connected with outside semitight mechanism 2 by cross bar 6 by link plate 9, it is ensured that the present invention obtains stable support；Pre-stored chamber 11 is entered into by the protective gas being passed through in plug; when the amount of protective gas runs up to certain degree; protective gas has pre-stored chamber 11 to enter into cavity 8 of giving vent to anger; because giving vent to anger, cavity 8 is taper; and the pore 10 having in the end of cavity 8 of giving vent to anger just contact point to soldering tip Yu weld seam 4; can ensure that protective gas has certain flow velocity and sprays from pore 10; increase protective gas and the contact area of contact point in the unit interval, meet the amount of protective gas required when weld seam 4 welds；nullSteel pipe 3 is driven by the runner 5 being correspondingly arranged in semitight mechanism 2，Curved body 7 is fitted with steel pipe 3，For a long time after work，All can there is bigger abrasion in steel pipe 3 and curved body 7，For increasing the service life of the present invention，The inwall in pre-stored chamber 11 is provided with roller 12，Roller can be under the effect of pullling of spring by link supports，When steel pipe contacts with curved body, roller directly contacts with steel pipe 3 outer surface，Directly contacting of curved body 7 and steel pipe 3 can be become roller 12 contact with steel pipe 3，The sliding friction between curved body 7 and steel pipe 3 is made to become rolling friction，Greatly reduce the degree of wear of steel pipe 3 outer surface and curved body 7，And compression when spring 14 can move on roller 12 is continuous，Continue to rise when spring 14 is compressed to limit connecting rod to greatest extent，Roller 12 and pre-stored chamber 11 contact internal walls is avoided to affect the rotation of roller 12，Ensure being normally carried out of welding sequence；Roller 12 is flexibly connected with the inwall in pre-stored chamber 11, can adjust curved body 7 for the welded still pipe 3 of different model and be in close contact with steel pipe 3 outer surface, prevent the loss of protective gas；Spring 14 can carry out soft readjustment by pair roller 12, it is to avoid roller 12 direct welding sequence once under the influence of tenesmus after welding terminates.
When the steel pipe 3 that welding caliber is less, the spindle tilt of roller 12 reduces, roller 12 is easily and the contact internal walls in pre-stored chamber 11, affect the rotation of roller 12, the position-limit mechanism arranged can make to maintain a certain distance between roller 12 and pre-stored chamber 11 inwall, ensure roller 12 normal rotation at work, improve the stability of welding；Gripper shoe 15 is fixed on the inwall in pre-stored chamber 11, can be supported the main shaft of the roller 12 of tenesmus, and the inclined plane of protruding 16 upper surfaces can fit with roller 12 main shaft, can reduce the loss of roller 12 further；In the range of angle of inclination is arranged on 35 ° ~ 50 °, the demand of the welded still pipe 3 of all kinds of medium and small model can be met, it is ensured that roller 12 has large range of angle of inclination, and the laminating good with steel pipe 3 outer surface, improve the stability of the present invention.
Above-described detailed description of the invention; the purpose of the present invention, technical scheme and beneficial effect are further described; it is it should be understood that; the foregoing is only the detailed description of the invention of the present invention; the protection domain being not intended to limit the present invention; all within the spirit and principles in the present invention, any modification, equivalent substitution and improvement etc. done, should be included within the scope of the present invention.
Claims (5)
- null1. the storage device of welding protection gas，It is characterized in that: include curved body (7)，Pre-stored chamber (11) it is provided with in described curved body (7)，One end of curved body (7) connects cavity (8) of giving vent to anger，The other end of curved body (7) connects link plate (9)，During work, link plate (9) is connected with outside semitight mechanism (2) by cross bar (6)，The end of described cavity of giving vent to anger (8) has pore (10)，And cavity of giving vent to anger (8) is tapered，Also include two rollers (12)，Described roller (12) is arranged on the junction in pre-stored chamber (11) and cavity of giving vent to anger (8)，Described roller is hinged with the both sides inwall of pre-stored chamber (11) by support bar (13)，The axle center of two rollers (12) is connected by connecting rod，At the top of described pre-stored chamber (11), spring (14) is installed，Spring (14) is connected with the middle part of connecting rod.
- The storage device of welding protection gas the most according to claim 1; it is characterized in that: described connecting rod includes left section (17) and right section (18) being hinged; left section (17) with right section (18) respectively axle center with two rollers (12) be connected, spring (14) is arranged on left section (17) and the hinged place of right section (18).
- The storage device of welding protection gas the most according to claim 1, it is characterised in that: also include immediately below the hinged place of the inwall that position-limit mechanism, described position-limit mechanism be arranged on described support bar (13) and pre-stored chamber (11).
- The storage device of welding protection gas the most according to claim 3; it is characterized in that: described position-limit mechanism includes gripper shoe (15); gripper shoe (15) is arranged on pre-stored chamber (11) inwall; and it is positioned at below the main shaft of support bar (13); being provided with projection (16) in described gripper shoe (15), the upper surface of protruding (16) is inclined plane.
- The storage device of welding protection gas the most according to claim 2, it is characterised in that: described spring (14) is torsionspring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410125193.3A CN103862205B (en) | 2014-03-31 | 2014-03-31 | The storage device of welding protection gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410125193.3A CN103862205B (en) | 2014-03-31 | 2014-03-31 | The storage device of welding protection gas |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103862205A CN103862205A (en) | 2014-06-18 |
| CN103862205B true CN103862205B (en) | 2016-09-21 |
Family
ID=50901547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410125193.3A Active CN103862205B (en) | 2014-03-31 | 2014-03-31 | The storage device of welding protection gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103862205B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4140890A (en) * | 1977-05-02 | 1979-02-20 | Daspit Ronald Albert | Underwater submersible gaseous cutter for submerged pipe lines |
| CN101422853A (en) * | 2007-11-02 | 2009-05-06 | 中国船舶重工集团公司第七二五研究所 | Local air protection cage during fusion welding titanium alloy |
| CN201346660Y (en) * | 2009-01-01 | 2009-11-18 | 阮继成 | Gas shielded welding device with tube air-charging device |
| CN201776578U (en) * | 2010-09-07 | 2011-03-30 | 浙江久立特材科技股份有限公司 | Inert gas protective dragging cover in tube for direct seam welding of major diameter tube |
| CN102398127A (en) * | 2010-09-07 | 2012-04-04 | 浙江久立特材科技股份有限公司 | Pipe internal inert gas protection cover for straight seam welding of large-diameter pipe |
| CN202639610U (en) * | 2012-06-11 | 2013-01-02 | 珠海市新维焊接器材有限公司 | Back gas protective device for pipeline welding |
| CN202877710U (en) * | 2012-11-13 | 2013-04-17 | 无锡市永创电控器材有限公司 | Micro-beam plasma welding manipulator protection gas hood |
| CN203778988U (en) * | 2014-03-31 | 2014-08-20 | 成都振中电气有限公司 | Welding protective gas storage mechanism |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3149754B2 (en) * | 1995-01-20 | 2001-03-26 | 日本鋼管株式会社 | Method for producing carbon steel pipe excellent in toughness by high energy density beam welding |
| JP3947615B2 (en) * | 1998-03-08 | 2007-07-25 | 日新製鋼株式会社 | Sealing method when manufacturing ERW pipe |
| CN203316895U (en) * | 2013-05-09 | 2013-12-04 | 上海瑞能焊割有限公司 | Plasma cutting nozzle |
-
2014
- 2014-03-31 CN CN201410125193.3A patent/CN103862205B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4140890A (en) * | 1977-05-02 | 1979-02-20 | Daspit Ronald Albert | Underwater submersible gaseous cutter for submerged pipe lines |
| CN101422853A (en) * | 2007-11-02 | 2009-05-06 | 中国船舶重工集团公司第七二五研究所 | Local air protection cage during fusion welding titanium alloy |
| CN201346660Y (en) * | 2009-01-01 | 2009-11-18 | 阮继成 | Gas shielded welding device with tube air-charging device |
| CN201776578U (en) * | 2010-09-07 | 2011-03-30 | 浙江久立特材科技股份有限公司 | Inert gas protective dragging cover in tube for direct seam welding of major diameter tube |
| CN102398127A (en) * | 2010-09-07 | 2012-04-04 | 浙江久立特材科技股份有限公司 | Pipe internal inert gas protection cover for straight seam welding of large-diameter pipe |
| CN202639610U (en) * | 2012-06-11 | 2013-01-02 | 珠海市新维焊接器材有限公司 | Back gas protective device for pipeline welding |
| CN202877710U (en) * | 2012-11-13 | 2013-04-17 | 无锡市永创电控器材有限公司 | Micro-beam plasma welding manipulator protection gas hood |
| CN203778988U (en) * | 2014-03-31 | 2014-08-20 | 成都振中电气有限公司 | Welding protective gas storage mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103862205A (en) | 2014-06-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9808876B2 (en) | Stainless steel weldment and pad combined welding method | |
| CN103586566B (en) | The semi-automatic argon arc welding method of composite bimetal pipe | |
| CN103212913B (en) | A kind of group of large diameter thin wall corrugated stainless steel tubing to and welding method | |
| CN102922153B (en) | Laser guide GMAW (Gas Metal Arc Welding) electric arc compound transverse welding method | |
| CN103846533B (en) | A kind of argon arc welding radical occlusion device | |
| CN102744499B (en) | Double-side double-arc welding process for root layer of pipeline | |
| CN102363239B (en) | Automatic narrow-gap submerged arc welding process for all-welded fixed ball valve with medium and large calibers | |
| WO2021114686A1 (en) | Circular seam welding method for low-alloy steel low temperature pressure vessel tank body | |
| CN106238858A (en) | A kind of welding method of low-temperature steel structure | |
| CN202701575U (en) | Double-faced dual-arc welding device of pipe root layer | |
| CN103862205B (en) | The storage device of welding protection gas | |
| CN203778988U (en) | Welding protective gas storage mechanism | |
| CN203778941U (en) | Welding baffle plate for argon arc welding of pipe fitting | |
| CN102873498B (en) | Crack restoring process of ball mill slide sliding shoe and connection thereof with barrel | |
| CN203778987U (en) | Welding shield gas storage device | |
| CN104816075A (en) | Argon arc welding method for alumal pipe of air separation system | |
| CN107900493A (en) | A kind of aggregation method of welding protection gas | |
| CN105108280A (en) | Welding method of high-molybdenum stainless steel plate | |
| CN104439649A (en) | 6 mm-thick steel plate tungsten inert gas shielded welding process | |
| CN106041270A (en) | Automatic pipeline welding method | |
| CN103846532B (en) | Steel-pipe welding insulation construction | |
| CN104117761A (en) | Storage method of shielding gas in steel tube welding process | |
| CN103831555A (en) | Steel tube welding shielding gas storage structure | |
| CN203778942U (en) | Argon arc welding shielding structure | |
| CN203778939U (en) | Welded steel pipe heat-insulation structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20160711 Address after: 266000 Licang, Qingdao, No. nine East water road, No. 320, No. Applicant after: QINGDAO YULANXIANG BUSINESS SERVICE CO., LTD. Address before: 610000 Sichuan city of Chengdu Province Economic and Technological Development Zone Zhenzhong Road No. 1 Applicant before: Chengdu Zhenzhong Electric Co., Ltd. |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Pan Chao Inventor before: Chen Huaizhi Inventor before: Wang Gang Inventor before: Nie Haitao Inventor before: Zhang Renyou Inventor before: Hu Guobo |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170815 Address after: 528400 Guangdong province Zhongshan Torch Development Zone Coastal Industrial Park West cross two Wai Patentee after: Zhongshan Gruber Gas Co., Ltd. Address before: 266000 Licang, Qingdao, No. nine East water road, No. 320, No. Patentee before: Qingdao Yulanxiang Commercial Services Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 528400 No.2 Wai, Hengmen West, Linhai Industrial Park, Torch Development Zone, Zhongshan City, Guangdong Province Patentee after: Zhongshan Yuejia Gas Co.,Ltd. Address before: 528400 No.2 Wai, Hengmen West, Linhai Industrial Park, Torch Development Zone, Zhongshan City, Guangdong Province Patentee before: ZHONGSHAN GLOBAL GASES ZHONGSHAN Co.,Ltd. |