CN201922186U - Gas replacement and protection device for welding of non-ferrous metal and non-ferrous metal alloy composite pipelines - Google Patents
Gas replacement and protection device for welding of non-ferrous metal and non-ferrous metal alloy composite pipelines Download PDFInfo
- Publication number
- CN201922186U CN201922186U CN2011200313474U CN201120031347U CN201922186U CN 201922186 U CN201922186 U CN 201922186U CN 2011200313474 U CN2011200313474 U CN 2011200313474U CN 201120031347 U CN201120031347 U CN 201120031347U CN 201922186 U CN201922186 U CN 201922186U
- Authority
- CN
- China
- Prior art keywords
- welding
- ferrous metal
- stainless steel
- plate
- alloy composite
- 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
Images
Landscapes
- Arc Welding In General (AREA)
Abstract
A gas replacement and protection device for the welding of non-ferrous metal and non-ferrous metal alloy composite pipelines comprises a horizontal stainless steel rod, both ends of the stainless steel rod are provided with screw threads, and the middles of the screw threads of both ends are respectively provided with a groove; two round rubber boards are vertically arranged in the grooves; two round stainless steel plates are respectively arranged at the left and the right sides of each round rubber board; two nuts are respectively arranged at the outer sides of the two round stainless steel plates; a gas outlet pipe runs through the upper ends of one of the round rubber boards and the round stainless steel plates at the left and the right sides of the round rubber board; a gas inlet pipe runs through the lower ends of the other round rubber board and the round stainless steel plates at the left and the right sides of the round rubber board, and a gas inlet hose is sleeved on the right orifice of the gas inlet pipe. The gas replacement and protection device has the advantages that: for a pipeline with a different diameter, operation can be carried out as long as rubber boards matched with the pipeline are mounted on the gas replacement and protection device, the argon utilization rate is high, and the cost in use is saved; the gas replacement and protection device can provide continuous protection for welding heat-affected areas, thus increasing the welding quality; moreover, the labor intensity of operators is low, and the gas replacement and protection device is safe, and prevents a lot of unsafe factors.
Description
Technical field
The utility model belongs to the welding auxiliary equipment field in oil, chemical industry non-ferrous metal and alloy composite pipe road thereof, is specifically related to the welding of a kind of non-ferrous metal and alloy composite pipe road thereof gas displacement and protective device.
Background technology
Non-ferrous metal pipeline such as nickel alloy pipeline, general nickel content surpasses 30%, and the chemical characteristic of this class material is more active, is very easy to react with airborne oxygen in air, at the oxide-film of pipe surface formation one deck densification, reduce the serviceability of material.Especially in nickel alloy pipeline welding process, this oxidative phenomena is more obvious, and is if do not strengthen gas shield, very big to the quality influence of welding point.In order to ensure nickel alloy pipeline welding quality, generally need carry out gas displacement and protection to pipe interior, outside.The outside main argon gas of argon-arc welding gun ejection in the welding process that relies on of nickel alloy pipeline is realized gas displacement and protection, and general effect is pretty good; The nickel alloy pipe interior; caliber according to pipeline to be welded varies in size; mainly take following three kinds of modes to carry out gas displacement and protection: 1, Φ 100mm adopts the pattern of water-soluble paper+high temperature gummed tape to carry out pipe interior gas displacement and protection with interior nickel alloy pipeline.Its step: (1) is separated out space about 150-200mm with soluble paper in welding mouth of pipe inside; (2) in the pipeline outside welding bead is pasted sealing with high temperature gummed tape, make one section closed interval of the inner formation of weld bond; (3) open the high temperature gummed tape of conduit upper, argon gas is filled in the closed interval in weld bond, and the air in the sealing weld bond interval is discharged fully by venthole, and welding mouth of pipe inside is under the protection of argon gas fully.The defective of its existence is: because soluble paper intensity is low, argon flow amount can not be too high, occurs the sordid problem of displacement easily; The air inlet of the method pipe interior and the same position of use of giving vent to anger influence replacement result; Efficient is low, displacement quality instability.2, Φ 100-Φ 500mm nickel alloy pipeline adopts the pattern of rubber slab+high temperature gummed tape to carry out pipe interior gas displacement and protection.Its step: (1) is separated out space about 150-200mm with rubber slab in welding mouth of pipe inside; (2) in the pipeline outside welding bead is pasted sealing with high temperature gummed tape, make one section closed interval of the inner formation of weld bond; (3) in the rubber slab upper shed of pipeline one side, argon gas is filled in the closed interval in weld bond; (4) in the rubber slab upper shed of the other side of pipeline, the air in the sealing weld bond interval is discharged fully by venthole.The defective of its existence is: because caliber is big, the rubber slab sealing effectiveness is influenced, and the argon gas consumption is bigger; The operation more complicated, pipe interior gas displacement elapsed time is longer; Weld a pipeline and just the parts that disperse need be assembled into a gas shield device, work efficiency is low, be unfavorable for that large tracts of land uses.3, the nickel alloy pipeline of the above caliber of Φ 500mm adopts the people to hold the mode that gas shield drags cover to enter pipe interior and carries out gas displacement and protection.Its step: (1) people enters pipe interior, a hand-held internal gas protection holder cover (internal gas protection holder cover by defeated argon pipe, stainless steel cloth, drag and cover shell and hand-held copper pipe is formed), in the beginning welding position, form a hemi-closure space that separates with surrounding air; (2) drag cover inside to carry out argon filling by being placed on the defeated argon pipe that drags the cover bottom to gas, enter the argon gas that drags cover, drag the inner hemi-closure space diffusion of cover to gas equably by stainless steel cloth, and will be enclosed in gas gradually and drag the air in the cover scope to be emptied completely; (3) in welding process, the people holds internal gas protection holder cover along with the same moved further of the welding arc of outside, and the weld seam of pipe interior and heat affected area metal are under the protection of argon gas all the time.The defective of its existence is: artificial labour intensity is big, and work efficiency is low; Rely on people's craft to protect operation, protection effect instability; Welding heat affected zone is lacked protection continuously, influence welding quality; The people enters pipe interior and carries out gas shield, causes security incident easily.
The utility model content
The technical problems to be solved in the utility model is: overcome the deficiencies in the prior art, the welding of a kind of non-ferrous metal and alloy composite pipe road thereof gas displacement and protective device are provided, it is easy and simple to handle, the argon gas consumption is less, the protection is effective; And little, the safety of operator's labour intensity, be applicable to the pipeline of various diameters.
The technical scheme that its technical problem that solves the utility model adopts is: non-ferrous metal and the welding of alloy composite pipe road gas displacement and protective device, it is characterized in that: comprise a horizontally disposed cylinder, described cylinder two ends, a respectively vertical sheathed elastic plate; The elastic plate top of a described end wears an escape pipe, and the elastic plate bottom of the described other end wears an air inlet pipe.
Preferably, described cylinder is a stainless steel bar; Described elastic plate is a rubber circular plate, and the diameter of described rubber circular plate is identical with pipe diameter to be welded or bigger.
Preferably, the two ends of described stainless steel bar are provided with all grooves, in described rubber circular plate fixing and the described groove.
Preferably, on described stainless steel bar, the described rubber circular plate left and right sides, sheathed clamping plate respectively, described clamping plate are clipped in described rubber circular plate wherein.
Preferably, described clamping plate are circular corrosion resistant plate, and the diameter of described circular corrosion resistant plate is less than the diameter of described rubber circular plate; Described escape pipe, air inlet pipe are passed the described rubber circular plate at its place, place and the circular corrosion resistant plate of both sides thereof respectively.
Preferably, the two ends of described stainless steel bar, described groove both sides are provided with screw thread; On described stainless steel bar, the described circular corrosion resistant plate left and right sides, a sheathed nut respectively, described nut is clipped in described circular corrosion resistant plate wherein.
Preferably, described stainless steel bar end face or about a snap ring is set on two end faces.
Preferably, connect a jack on the described snap ring.
Preferably, a sheathed air inlet band on the described air inlet pipe.
Compared with prior art, the beneficial effects of the utility model are: for the pipeline of different-diameter, the rubber slab that only needs to match is with it assembled wherein, just can carry out work, and the utilization rate of argon gas is higher, has saved use cost; Can provide continuous protection to welding heat affected zone, improve welding quality; And little, the safety of operator's labour intensity, avoided the generation of a lot of unsafe factors.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the structural representation of stainless steel bar among Fig. 1.
Be labeled as among the figure:
1, stainless steel bar; 11, screw thread; 12, groove; 2, rubber circular plate; 3, escape pipe; 4, air inlet pipe; 5, circular corrosion resistant plate; 6, nut; 7, snap ring; 8, jack; 9, air inlet band.
The specific embodiment
Below in conjunction with accompanying drawing embodiment, the utility model is described further:
As shown in Figure 1, 2, non-ferrous metal and the welding of alloy composite pipe road thereof comprise a horizontally disposed stainless steel bar 1 with gas displacement and protective device, and the two ends of described stainless steel bar 1 are provided with screw thread 11, and screw thread 11 middle parts at two ends are provided with all grooves 12;
Each vertical sheathed rubber circular plate 2 in the described groove 12, the diameter of described rubber circular plate 2 is identical with pipe diameter to be welded or bigger; Described rubber circular plate 2 left and right sides, difference sheathed one circular corrosion resistant plate 5, the diameter of described circular corrosion resistant plate 5 is less than the diameter of described rubber circular plate 2; Described circular corrosion resistant plate 5 is clipped in described rubber circular plate 2 wherein;
Left end at described stainless steel bar 1, the left and right sides of described rubber circular plate 2 is two circular corrosion resistant plates 5, the sheathed nut 6 of two outsides difference about these two circular corrosion resistant plates 5, described two nuts 6 are clipped in described circular corrosion resistant plate 5 and rubber circular plate 2 wherein; One escape pipe 3 passes the upper end of the circular corrosion resistant plate 5 of the rubber circular plate 2 at this place and the left and right sides thereof, and with two circular corrosion resistant plates 5 in its contact position welding; The right output port of described escape pipe 3 communicates with space between two rubber circular plates 2;
Right-hand member at described stainless steel bar 1, the left and right sides of described rubber circular plate 2 is two circular corrosion resistant plates 5, the sheathed nut 6 of two outsides difference about these two circular corrosion resistant plates 5, described two nuts 6 are clipped in described circular corrosion resistant plate 5 and rubber circular plate 2 wherein; One air inlet pipe 4 is passed the lower end of the circular corrosion resistant plate 5 of the rubber circular plate 2 at this place and the left and right sides thereof, and with two circular corrosion resistant plates 5 in its contact position welding; The left port of described air inlet pipe 4 communicates a sheathed air inlet band 9 on its right output port with space between two rubber circular plates 2;
One snap ring 7 is set on the right side of described stainless steel bar, connects a jack 8 on the described snap ring.The utility model operation principle and the course of work are as follows:
As shown in Figure 1, 2, the nickel alloy pipeline of preparing welding is organized in advance right; Use jack 8 to draw in pipeline from an end of pipeline the utility model, it is pulled to the weld seam center, weld seam is placed space between two rubber circular plates 2; Use high temperature gummed tape with weld bond from the pipeline outside seal; In by air inlet band 9 argon gas being charged into space between two rubber circular plates 2 from air inlet pipe 4, carry out gas displacement; Open about the high temperature gummed tape 1mm of conduit upper, high temperature gummed tape and escape pipe 3 that the air that volume is lighter passes through conduit upper flow out, and reach the effect of gas displacement and argon shield; The nickel alloy pipe interior of finishing from welding uses jack 8 that the utility model is pulled out, and proceeds the gas displacement and the protection of other nickel alloy pipelines.In order to improve the gas displacement effect, air inlet pipe 4 must be placed on the extreme lower position of whole device, escape pipe 3 must be placed on the extreme higher position of whole device and manipulate, escape pipe 3 calibers are 1/4 of air inlet pipe 4 calibers, guarantee out that gas flow is about the 20-25% of inlet gas flow.
The above, it only is preferred embodiment of the present utility model, be not to be the restriction of the utility model being made other form, any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the equivalent embodiment of equivalent variations.But every technical solutions of the utility model content that do not break away to any simple modification, equivalent variations and remodeling that above embodiment did, still belongs to the protection domain of technical solutions of the utility model according to technical spirit of the present utility model.
Claims (9)
1. the welding of non-ferrous metal and alloy composite pipe road thereof is characterized in that: comprise a horizontally disposed cylinder (1), described cylinder (1) two ends, a respectively vertical sheathed elastic plate (2) with gas displacement and protective device; The elastic plate top of a described end wears an escape pipe (3), and the elastic plate bottom of the described other end wears an air inlet pipe (4).
2. non-ferrous metal according to claim 1 and the welding of alloy composite pipe road gas displacement and protective device, it is characterized in that: described cylinder (1) is a stainless steel bar (1); Described elastic plate (2) is rubber circular plate (2), and the diameter of described rubber circular plate (2) is identical with pipe diameter to be welded or bigger.
3. non-ferrous metal according to claim 2 and the welding of alloy composite pipe road gas displacement and protective device; it is characterized in that: the two ends of described stainless steel bar (1) are provided with all grooves (11), and described rubber circular plate (2) is fastened in the described groove (11).
4. non-ferrous metal according to claim 3 and the welding of alloy composite pipe road gas displacement and protective device; it is characterized in that:, described rubber circular plate (2) left and right sides last at described stainless steel bar (1); difference sheathed clamping plate (5), described clamping plate (5) are clipped in described rubber circular plate (2) wherein.
5. non-ferrous metal according to claim 4 and the welding of alloy composite pipe road gas displacement and protective device, it is characterized in that: described clamping plate (5) are circular corrosion resistant plate (5), and the diameter of described circular corrosion resistant plate (5) is less than the diameter of described rubber circular plate (2); Described escape pipe (3), air inlet pipe (4) are passed the described rubber circular plate (2) at its place, place and the circular corrosion resistant plate (5) of both sides thereof respectively.
6. non-ferrous metal according to claim 5 and the welding of alloy composite pipe road gas displacement and protective device, it is characterized in that: the two ends of described stainless steel bar (1), described groove (11) both sides are provided with screw thread (12); , described circular corrosion resistant plate (5) left and right sides last at described stainless steel bar (1), a difference sheathed nut (6), described nut (6) is clipped in described circular corrosion resistant plate (5) wherein.
According to the welding of the arbitrary described non-ferrous metal of claim 2 to 6 and alloy composite pipe road thereof with gas displacement and protective device, it is characterized in that: end face of described stainless steel bar (1) or about a snap ring (7) is set on two end faces.
8. non-ferrous metal according to claim 7 and the welding of alloy composite pipe road gas displacement and protective device is characterized in that: described snap ring (7) is gone up and is connected a jack (8).
9. non-ferrous metal according to claim 8 and the welding of alloy composite pipe road gas displacement and protective device, it is characterized in that: described air inlet pipe (4) goes up a sheathed air inlet band (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200313474U CN201922186U (en) | 2011-01-29 | 2011-01-29 | Gas replacement and protection device for welding of non-ferrous metal and non-ferrous metal alloy composite pipelines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200313474U CN201922186U (en) | 2011-01-29 | 2011-01-29 | Gas replacement and protection device for welding of non-ferrous metal and non-ferrous metal alloy composite pipelines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201922186U true CN201922186U (en) | 2011-08-10 |
Family
ID=44426055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200313474U Expired - Lifetime CN201922186U (en) | 2011-01-29 | 2011-01-29 | Gas replacement and protection device for welding of non-ferrous metal and non-ferrous metal alloy composite pipelines |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201922186U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102133680A (en) * | 2011-01-29 | 2011-07-27 | 中国石化集团第十建设公司 | Gas replacement and protection device for welding nonferrous metal and nonferrous metal alloy composite pipelines |
| CN108845022A (en) * | 2018-08-09 | 2018-11-20 | 中国原子能科学研究院 | A kind of air ventilation device |
| CN112792280A (en) * | 2020-12-31 | 2021-05-14 | 林州重机铸锻有限公司 | Guide sleeve hot heading machine and hot heading method thereof |
-
2011
- 2011-01-29 CN CN2011200313474U patent/CN201922186U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102133680A (en) * | 2011-01-29 | 2011-07-27 | 中国石化集团第十建设公司 | Gas replacement and protection device for welding nonferrous metal and nonferrous metal alloy composite pipelines |
| CN108845022A (en) * | 2018-08-09 | 2018-11-20 | 中国原子能科学研究院 | A kind of air ventilation device |
| CN112792280A (en) * | 2020-12-31 | 2021-05-14 | 林州重机铸锻有限公司 | Guide sleeve hot heading machine and hot heading method thereof |
| CN112792280B (en) * | 2020-12-31 | 2024-05-28 | 林州重机铸锻有限公司 | Guide sleeve hot header and hot header method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102133680A (en) | Gas replacement and protection device for welding nonferrous metal and nonferrous metal alloy composite pipelines | |
| CN201922186U (en) | Gas replacement and protection device for welding of non-ferrous metal and non-ferrous metal alloy composite pipelines | |
| CN105252120B (en) | A kind of stainless steel cylinder liner circular-seam welding method | |
| CN203171126U (en) | Argon arc self-fluxing welding gun | |
| CN206216145U (en) | A kind of titanium alloy welding protection device | |
| CN204108532U (en) | A kind of spherical storage tank adapter bevel for welding | |
| CN203765148U (en) | Portable argon shield case | |
| CN204747740U (en) | Welding secondary safety cover | |
| CN202701575U (en) | Double-faced dual-arc welding device of pipe root layer | |
| CN203370380U (en) | Flange filter | |
| CN203437797U (en) | Back argon protecting device for furnace tube welding | |
| CN201427082Y (en) | Novel nozzle | |
| CN206604683U (en) | A kind of aluminum alloy material surface manual spray device | |
| CN203696276U (en) | Special material welding protection device | |
| CN209007042U (en) | A kind of packaged type large-caliber spiral welded pipe units | |
| CN204486989U (en) | Face of weld oxidation after TIG backing welding | |
| CN103706926A (en) | Process for connecting lined stainless steel clad pipes with flanges | |
| CN202411692U (en) | Device for preheating barrel body | |
| CN202291786U (en) | Welding flux supplying device of vertical type submerged-arc automatic welding machine | |
| CN208906342U (en) | Argon-filling device is used in a kind of welding of gauge pipe | |
| CN202961599U (en) | Novel pipeline for fire truck | |
| CN208130755U (en) | A kind of metallurgic waste gas processing unit | |
| CN208116975U (en) | narrow gap TIG welding gun | |
| CN213469915U (en) | A electricity oxygen cutting device for steel construction under water | |
| CN203309905U (en) | Gas cutting gun |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SINOPEC TENTH CONSTRUCTION COMPANY Free format text: FORMER NAME: NO.10 CONSTRUCTION CORP., SINOPEC |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 255438 No. 29, Linzi, Zibo District, Shandong, Jianshe Road Patentee after: SINOPEC Tenth Construction Company Address before: 255438 No. 29, Linzi, Zibo District, Shandong, Jianshe Road Patentee before: No.10 Construction Corp., SINOPEC |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110810 |