CN203751501U - Deep-groove welding gas inflation hood - Google Patents
Deep-groove welding gas inflation hood Download PDFInfo
- Publication number
- CN203751501U CN203751501U CN201320883987.7U CN201320883987U CN203751501U CN 203751501 U CN203751501 U CN 203751501U CN 201320883987 U CN201320883987 U CN 201320883987U CN 203751501 U CN203751501 U CN 203751501U
- Authority
- CN
- China
- Prior art keywords
- welding
- cavity
- utility
- model
- deep
- 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 - Lifetime
Links
- HSFWRNGVRCDJHI-UHFFFAOYSA-N Acetylene Chemical compound C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 title abstract description 4
- 238000003466 welding Methods 0.000 claims abstract description 37
- 230000001681 protective effect Effects 0.000 claims abstract description 11
- 239000007921 spray Substances 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 23
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 3
- 229910052721 tungsten Inorganic materials 0.000 description 3
- 239000010937 tungsten Substances 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010891 electric arc Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Landscapes
- Arc Welding In General (AREA)
Abstract
The utility model provides a deep-groove welding gas inflation hood which can extend into a weld seam to effectively protect the weld seam. The deep-groove welding gas inflation hood provided by the utility model is characterized in that the upper end is provided with an annular cavity, the lower end is provided with a rectangular cavity, the rectangular cavity comprises a middle rectangular cavity and side edge rectangular cavities on two sides of the middle cavity, each side edge rectangular cavity is provided with a gas inlet in the top and an open bottom, and the annular cavity and the middle rectangular cavity are used for forming a channel which allows a welding motor to penetrate through and serves as a channel of protective gas sprayed from a welding nozzle.
Description
Technical field
The utility model relates to welding inflatable cover, relates in particular to the inflatable cover of carrying inert protective gas.
Background technology
Deep groove welding is widely used in the welding of large heavy wall member at present.The thick-walled pipes such as the Main Coolant pipeline of current Construction of Nuclear Electricity are all quoted deep groove automatic welding method and are replaced traditional manual welding technique.Current existing deep groove automatic welding inflatable cover tungsten electrode in the time of welding gos deep into bevel for welding, by gas distributor, enters bevel for welding by inflatable cover.The inflatable cover of deep groove automatic welding conventionally can not be according to groove and adjusting size, inert gas tungsten electrode protection weldering tungsten electrode need to stretch out a segment distance conventionally, but the deep groove weld seam to groove depth at 40mm-100mm, when welding, gas shield cover cannot reach the root of weld and effectively protect, can only reach by strengthening gas flow the object of the weld seam that adequately protects, thereby need a large amount of gas butt welded seams to protect, and along with groove depth increases, the consumption of protective gas can roll up, and the gas ratio effectively entering in groove reduces rapidly, and make to protect effect worse and worse.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of deep groove welding inflatable cover, and it can stretch into the inner butt welded seam of weld seam and effectively protect.
For solving the problems of the technologies described above; the utility model provides a kind of deep groove welding inflatable cover; be characterized in; upper end is annular die cavity; lower end is rectangle mold cavity; rectangle mold cavity comprises intermediate rectangular die cavity, is positioned at the side rectangle mold cavity of central cavity both sides, and the top of side rectangle mold cavity is provided with air admission hole and bottom-open, and annular die cavity and intermediate rectangular die cavity are used to form a passage for pass and spray as welding tip the passage of protective gas for welding motor.
Groove depth is adopted to aforesaid inflatable cover in the weld metal zone of 40mm-100mm; can stretch into groove root; from both sides air inlet; logical protective gas uniformly dispersing forms double shielding gas fluid layer at the gas of weld metal zone and nozzle ejection; electric arc is intensive and concentrated under nozzle compression; the gas that adds inflatable cover expands protection domain; can be the in the situation that of effective protection weld seam saving and protection gas; weld seam and welding heat affected zone and mother metal are effectively protected in welding, save welding gas simultaneously.
Brief description of the drawings
The above and other feature of the present utility model, character and advantage are by by becoming more obvious below in conjunction with the description of drawings and Examples, wherein:
Fig. 1 is the schematic diagram of the duty of the deep groove welding inflatable cover of an embodiment of the utility model.
Fig. 2 is the front view of the deep groove welding inflatable cover of an embodiment of the utility model.
Fig. 3 is the side view of the deep groove welding inflatable cover of an embodiment of the utility model.
Fig. 4 is the top view of the deep groove welding inflatable cover of an embodiment of the utility model.
Detailed description of the invention
Below in conjunction with specific embodiments and the drawings, the utility model is described in further detail; set forth in the following description more details so that fully understand the utility model; but the utility model obviously can be implemented with the multiple alternate manner that is different from this description; those skilled in the art can do similar popularization, deduction according to practical situations without prejudice to the utility model intension in the situation that, therefore should be with the content constraints of this specific embodiment protection domain of the present utility model.
Corresponding with duty in Fig. 1 after deep groove welding inflatable cover Rotate 180 degree in Fig. 2 to Fig. 4; it should be noted that; these and follow-up other accompanying drawing are all only as example; it is not to draw according to the condition of equal proportion, and should be using this as the protection domain of the utility model actual requirement is construed as limiting.In aftermentioned embodiment, the orientation term such as upper and lower is taking the duty of deep groove welding inflatable cover as reference.
As shown in Figures 2 to 4, the upper end of deep groove welding inflatable cover 2 is annular die cavity 21, lower end is rectangle mold cavity, rectangle mold cavity comprises intermediate rectangular die cavity 22, is positioned at the side rectangle mold cavity 23 of central cavity 22 both sides, the top of side rectangle mold cavity 23 is provided with air admission hole 231 and bottom-open, so that gas is entered by air admission hole 231, sprayed from rectangle mold cavity lower end by screen pack again by cavity 230.Annular die cavity 21 and intermediate rectangular die cavity 22 are used to form a passage 210,220 for pass and spray as welding tip the passage of protective gas for welding motor.Rectangle mold cavity is that the lower port of intermediate rectangular die cavity 22, side rectangle mold cavity 23 has one deck protection screen pack (not shown).
As shown in Figure 1; the electrode 3 of welding gun 1 passes from annular die cavity 21, the intermediate rectangular die cavity 22 of deep groove welding inflatable cover 2; protective gas is from 23 air inlets of side rectangle mold cavity; can go deep into groove root; the protective gas uniformly dispersing spraying by screen pack forms double shielding gas fluid layer at the gas of weld metal zone and nozzle ejection; electric arc is intensive and concentrated under nozzle compression, adds that the gas of inflatable cover expands protection domain, can be the in the situation that of effective protection weld seam saving and protection gas.
Under equal process conditions (degree of depth 40mm of groove 4), adopt respectively original inflatable cover and inflatable cover of the present utility model, it is 80-100ml/min that original protective cover gas flow needs literary composition, and this Novel protective hood gas flow is only for being 20-25ml/min.As can be seen from the above, under the prerequisite that meets welding quality, the utility model is simple in structure, cheap, easy to use, can effectively protect welding to avoid oxidation, can effectively improve welding quality, reduces costs.
Although the utility model with preferred embodiment openly as above, it is not for limiting the utility model, and any those skilled in the art, not departing from spirit and scope of the present utility model, can make possible variation and amendment.Therefore, every content that does not depart from technical solutions of the utility model, any amendment, equivalent variations and the modification above embodiment done according to technical spirit of the present utility model, within all falling into the protection domain that the utility model claim defines.
Claims (1)
1. deep groove welding inflatable cover; it is characterized in that; upper end is annular die cavity; lower end is rectangle mold cavity; rectangle mold cavity comprises intermediate rectangular die cavity, is positioned at the side rectangle mold cavity of central cavity both sides; the top of side rectangle mold cavity is provided with air admission hole and bottom-open, and annular die cavity and intermediate rectangular die cavity are used to form a passage for pass and spray as welding tip the passage of protective gas for welding motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320883987.7U CN203751501U (en) | 2013-12-30 | 2013-12-30 | Deep-groove welding gas inflation hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320883987.7U CN203751501U (en) | 2013-12-30 | 2013-12-30 | Deep-groove welding gas inflation hood |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203751501U true CN203751501U (en) | 2014-08-06 |
Family
ID=51246812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320883987.7U Expired - Lifetime CN203751501U (en) | 2013-12-30 | 2013-12-30 | Deep-groove welding gas inflation hood |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203751501U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102021112825A1 (en) | 2021-05-18 | 2022-11-24 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung eingetragener Verein | Process for producing protective gas shielding when processing a workpiece with energetic radiation or by means of an arc |
| CN115488474A (en) * | 2022-09-30 | 2022-12-20 | 中国核工业第五建设有限公司 | Welding gun ceramic nozzle, welding gun and narrow groove welding inflation protection method |
-
2013
- 2013-12-30 CN CN201320883987.7U patent/CN203751501U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102021112825A1 (en) | 2021-05-18 | 2022-11-24 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung eingetragener Verein | Process for producing protective gas shielding when processing a workpiece with energetic radiation or by means of an arc |
| CN115488474A (en) * | 2022-09-30 | 2022-12-20 | 中国核工业第五建设有限公司 | Welding gun ceramic nozzle, welding gun and narrow groove welding inflation protection method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203380522U (en) | Welding gas protective device | |
| CN103934556A (en) | Auxiliary protection gas hood of automatic TIC welder head | |
| CN203751501U (en) | Deep-groove welding gas inflation hood | |
| CN203484793U (en) | Small-inner-bore plasma powder overlaying welding gun | |
| CN105983774A (en) | Water-cooling TIG welding gun with copper-coated tungsten electrode on basis of cathode compression effect | |
| CN203171126U (en) | Argon arc self-fluxing welding gun | |
| CN202224814U (en) | Novel gas shielded welding device | |
| CN202667895U (en) | Heavy TIG (Tungsten Inert Gas Welding) gun head | |
| CN203918197U (en) | A kind of CO 2gas protective welding gun nozzle | |
| CN204747740U (en) | Welding secondary safety cover | |
| CN205869680U (en) | Nozzle of adjustable length | |
| CN205085531U (en) | Tungsten utmost point argon arc welds cage | |
| CN204381642U (en) | The fixed MIG welding gun of a kind of blast-furnace tuyere welding water-cooled | |
| CN203765153U (en) | Gas shielded welding gun for thick wire high-speed automatic welding | |
| CN104227275A (en) | Circulating cooling water device for intermediate frequency welder | |
| CN203418220U (en) | Secondary compression type plasma welding gun | |
| CN201922186U (en) | Gas replacement and protection device for welding of non-ferrous metal and non-ferrous metal alloy composite pipelines | |
| CN203509007U (en) | Cast aluminum ingot cooling device | |
| CN204122906U (en) | A kind of backing welding sealing run oxygen-proof protecting device | |
| CN204747808U (en) | Incomplete water processing system of soldering turret | |
| CN203636200U (en) | Nitrogen feeding protection device used in laser welding process | |
| CN205147557U (en) | Welding is with protection gas gas distribution device | |
| CN103990898A (en) | Dustproof de-noising plasma cutting machine | |
| CN204053206U (en) | A kind of carbon dioxide gas arc welding welding gun structure | |
| CN202377658U (en) | Annular spray pipe protection welding gun |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140806 |