CN104263325A - Welding seam cooling liquid for use in longitudinal submerged arc welding of steel pipes and use method thereof - Google Patents
Welding seam cooling liquid for use in longitudinal submerged arc welding of steel pipes and use method thereof Download PDFInfo
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- CN104263325A CN104263325A CN201410364331.3A CN201410364331A CN104263325A CN 104263325 A CN104263325 A CN 104263325A CN 201410364331 A CN201410364331 A CN 201410364331A CN 104263325 A CN104263325 A CN 104263325A
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- cooling fluid
- steel pipe
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- weld seam
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 69
- 239000010959 steel Substances 0.000 title claims abstract description 69
- 238000003466 welding Methods 0.000 title claims abstract description 66
- 238000000034 method Methods 0.000 title claims abstract description 35
- 239000000110 cooling liquid Substances 0.000 title abstract 4
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 6
- 239000012809 cooling fluid Substances 0.000 claims description 68
- 230000008569 process Effects 0.000 claims description 21
- 239000002826 coolant Substances 0.000 claims description 6
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 5
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 5
- 239000013530 defoamer Substances 0.000 claims description 5
- 239000004615 ingredient Substances 0.000 claims description 5
- 239000004571 lime Substances 0.000 claims description 5
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 4
- 239000002736 nonionic surfactant Substances 0.000 claims description 4
- 229920000570 polyether Polymers 0.000 claims description 4
- 239000001205 polyphosphate Substances 0.000 claims description 4
- 235000011176 polyphosphates Nutrition 0.000 claims description 4
- 150000003839 salts Chemical class 0.000 claims description 4
- 238000001816 cooling Methods 0.000 abstract description 16
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 abstract description 9
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 abstract description 9
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 abstract description 9
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 abstract description 7
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 abstract description 6
- 238000005336 cracking Methods 0.000 abstract description 5
- 239000004372 Polyvinyl alcohol Substances 0.000 abstract description 3
- 229920002451 polyvinyl alcohol Polymers 0.000 abstract description 3
- 235000010344 sodium nitrate Nutrition 0.000 abstract description 3
- 239000004317 sodium nitrate Substances 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 3
- 239000002518 antifoaming agent Substances 0.000 abstract 1
- 239000008367 deionised water Substances 0.000 abstract 1
- 229910021641 deionized water Inorganic materials 0.000 abstract 1
- 230000014759 maintenance of location Effects 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 description 7
- 239000002184 metal Substances 0.000 description 7
- 238000012360 testing method Methods 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000009863 impact test Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000008520 organization Effects 0.000 description 4
- 239000013078 crystal Substances 0.000 description 3
- 230000004907 flux Effects 0.000 description 3
- 238000001556 precipitation Methods 0.000 description 3
- 229910000679 solder Inorganic materials 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000010408 film Substances 0.000 description 2
- 235000011187 glycerol Nutrition 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 229940001516 sodium nitrate Drugs 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- 229910001566 austenite Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000010309 melting process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
- C09K5/08—Materials not undergoing a change of physical state when used
- C09K5/10—Liquid materials
-
- 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
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/003—Cooling means
-
- 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
- B23K9/18—Submerged-arc welding
-
- 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
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/04—Tubular or hollow articles
- B23K2101/06—Tubes
-
- 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
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/02—Iron or ferrous alloys
- B23K2103/04—Steel or steel alloys
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Thermal Sciences (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Plasma & Fusion (AREA)
- Combustion & Propulsion (AREA)
- Optics & Photonics (AREA)
- Arc Welding In General (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The invention discloses welding seam cooling liquid for use in longitudinal submerged arc welding of steel pipes and a use method thereof. The welding seam cooling liquid for use in longitudinal submerged arc welding of the steel pipes comprises the following specific components in percentage by mass: 5-10 percent of polyvinyl alcohol, 10-15 percent of ethylene glycol, 10-15 percent of propylene glycol, 2-5 percent of glycerol, 1-3 percent of sodium nitrate, 0.5-1 percent of potassium hydroxide, 0.5-1.5 percent of an antifoaming agent, 0.1-1.5 percent of an anticorrosive agent and the balance of deionized water. Through adoption of the welding seam cooling liquid, the cooling speed of a welding seam is increased, and the deformation and cracking of the welding seam are avoided. Meanwhile, the high-temperature retention time of the welding seam is shortened, coarse grains in a weld microstructure are prevented, and the strength and toughness of the welding seam are enhanced.
Description
Technical field
The present invention relates to cooling fluid technical field, be specifically related to a kind of SAW process for straight welded steel pipe weld seam cooling fluid and using method thereof.
Background technology
Union-melt weld in advance particulate state solder flux is dispersed on welding line, and by wire feeder, welding wire is sent to automatically and continuously in solder flux, and ignite electric arc between welding wire front end and mother metal, carries out automatic arc welding.When after arc ignition, solder flux, welding wire and mother metal melt immediately and form molten bath under the effect of arc heat.The slag of fusing covers molten pool metal and high-temperature soldering district, plays a protective role.
Vertical masonry joint union-melt weld can be used for producing heavy caliber, thick-wall pipeline steel, is usually used in oil and gas transport.During welding, there is heating and melting process in welded metal under the effect of thermal source, and after thermal source leaves, metal starts continuous cooling process, and whole welding process is along with the input of heat and propagation.And thermal weld stress amount determines the rate of heating of this process, high-temperature residence time and speed of cooling, thus affect the structural transformation process of welding joint metal and weld seam, finally affect the performance of weld seam.The performance of weld seam is the key factor of steel pipe security.
The welding current that union-melt weld uses is large, namely general employing multifibres has multiple thermal source, heat input is large, make the volume in molten bath large, molten pool metal high-temperature residence time is long, and speed of cooling is slow, and the prolongation of high-temperature residence time homogenizes on austenite crystal, grain growth, carbide dissolution and precipitation will produce important impact, make weld grain thick, intensity and toughness reduce.For improve weld seam strength and toughness can steel pipe all weld terminate after carry out temper, but this operation considerably increases production time and the cost of steel pipe.
Current shortage is a kind of strengthens the intensity of weld seam and the SAW process for straight welded steel pipe weld seam cooling fluid of toughness and using method thereof.
Summary of the invention
Technical problem to be solved by this invention is to provide and a kind ofly strengthens the intensity of weld seam and the SAW process for straight welded steel pipe weld seam cooling fluid of toughness and using method thereof.
To achieve these goals, the present invention is achieved through the following technical solutions: a kind of SAW process for straight welded steel pipe weld seam cooling fluid of the present invention, and concrete Ingredient percent is as follows:
Further, described anticorrosive agent is selected from one or both the combination in poly-phosphate, chromic salt.
Further, described defoamer is selected from one or both the combination in low alveolitoid nonionogenic tenside, polyether nonionic surfactant.
The using method of SAW process for straight welded steel pipe weld seam cooling fluid of the present invention, comprises the steps:
(1) steel pipe is positioned on the swing roller of welding chassis, welds chassis during welding and can at the uniform velocity be moved from left to right by wheel; Before welding, by the position of swing roller adjustment steel pipe, the angle of weld seam in the vertical direction and horizontal plane is made to be 90 °;
(2) start welding, move from left to right with steel pipe, welding gun conveying welding wire welds from right to left to steel pipe; Coolant reservoir is connected with cooling fluid output tube; 1 ~ 2m is spaced apart between described cooling fluid output tube and welding gun; When steel pipe moves to cooling fluid transfer lime position, open cooling fluid output tube switch, cooling fluid is evenly flowed out, and butt welded seam cools.
Further, in step (2), between described cooling fluid output tube and welding gun, be spaced apart 1.5m.
Beneficial effect: the speed of cooling that invention increases weld seam, avoids the distortion of weld seam and the appearance of cracking.Reduce weld seam high-temperature residence time simultaneously, prevent seam organization coarse grains, improve intensity and the toughness of weld seam.
The present invention adopt polyvinyl alcohol cooling fluid just touched weld seam begin to cool down time, high temperature due to weld face makes it change precipitation state into from dissolved state, namely separate out from solution, and form thin film at weld face, avoid directly with during water cooling owing to cooling too fast and the seam deformation of appearance and cracking phenomena.SODIUMNITRATE add the specific conductivity that can increase cooling fluid, make that film generates evenly, thus ensure that weld seam entirety obtains Homogeneous cooling.Ethylene glycol, propylene glycol, glycerine have higher thermal conductivity, effectively can improve the speed of cooling of weld seam during low temperature.Potassium hydroxide plays the effect regulating cooling fluid pH value.Utilize the thermal conduction of cooling fluid to take away the heat of weld seam with flowing, thus improve speed of cooling.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of cooling fluid using method;
Fig. 2 is the partial schematic diagram of cooling fluid using method;
Fig. 3 is the metallographic pattern of the X80 steel pipe seam in embodiment 1;
Fig. 4 is the metallographic pattern of the X80 steel pipe seam in comparative example;
Wherein: 1 steel pipe; 2 weld seams; 3 coolant reservoirs; 4 cooling fluid output tubes; 5 welding wires; 6 welding guns; 7 welding chassis; 8 swing rollers; 9 wheels.
Embodiment
Further specific descriptions will be done by specific embodiment to the present invention below in conjunction with accompanying drawing, but can not be interpreted as it is limiting the scope of the present invention.
Embodiment 1
As shown in Figure 1 to Figure 3, Fig. 3 is the metallographic pattern of the X80 steel pipe seam of embodiment 1, and in metallographic pattern, crystal grain is more tiny, and the intensity of seam organization is higher, and toughness is better.
A kind of SAW process for straight welded steel pipe weld seam cooling fluid of the present invention, concrete Ingredient percent is as follows:
Prepare each component according to aforementioned proportion, join in the reactor with whipping appts, heating function, regulate temperature 30 DEG C to be stirred to and dissolve completely, obtain cooling fluid of the present invention.
Described anticorrosive agent is poly-phosphate and chromic salt.Described defoamer is low alveolitoid nonionogenic tenside.
The using method of SAW process for straight welded steel pipe weld seam cooling fluid of the present invention, comprises the steps:
(1) be that the steel pipe 1 of X80 is positioned on the swing roller 8 of welding chassis 7 by material, weld chassis during welding and can at the uniform velocity be moved from left to right by wheel 9; Before welding, adjusted the position of steel pipe 1 by swing roller 8, make the angle of weld seam 2 in the vertical direction and horizontal plane be 90 °;
(2) start welding, move with the speed of 1.5m/min from left to right with steel pipe, welding gun 6 carries welding wire 5 pairs of steel pipes 1 to weld from right to left; Coolant reservoir 3 is connected with cooling fluid output tube 4; 1m is spaced apart between described cooling fluid output tube 4 and welding gun 6; When steel pipe 1 moves to cooling fluid transfer lime 4 position, open cooling fluid output tube switch, cooling fluid is evenly flowed out, and butt welded seam cools.
Invention increases the speed of cooling of weld seam, avoid the distortion of weld seam and the appearance of cracking.Reduce weld seam high-temperature residence time simultaneously, prevent seam organization coarse grains, improve intensity and the toughness of weld seam.
The present invention adopt polyvinyl alcohol cooling fluid just touched weld seam begin to cool down time, high temperature due to weld face makes it change precipitation state into from dissolved state, namely separate out from solution, and form thin film at weld face, avoid directly with during water cooling owing to cooling too fast and the seam deformation of appearance and cracking phenomena.SODIUMNITRATE add the specific conductivity that can increase cooling fluid, make that film generates evenly, thus ensure that weld seam entirety obtains Homogeneous cooling.Ethylene glycol, propylene glycol, glycerine have higher thermal conductivity, effectively can improve the speed of cooling of weld seam during low temperature.Potassium hydroxide plays the effect regulating cooling fluid pH value.Utilize the thermal conduction of cooling fluid to take away the heat of weld seam with flowing, thus improve speed of cooling.
Embodiment 2
Embodiment 2 is with the difference of embodiment 1: a kind of SAW process for straight welded steel pipe weld seam cooling fluid of the present invention, and concrete Ingredient percent is as follows:
Prepare each component according to aforementioned proportion, join in the reactor with whipping appts, heating function, regulate temperature 35 DEG C to be stirred to and dissolve completely, obtain cooling fluid of the present invention.
Described anticorrosive agent is chromic salt.Described defoamer is polyether nonionic surfactant.
The using method of SAW process for straight welded steel pipe weld seam cooling fluid of the present invention, comprises the steps:
(1) be that the steel pipe 1 of X70 is positioned on the swing roller 8 of welding chassis 7 by material, weld chassis during welding and can at the uniform velocity be moved from left to right by wheel 9; Before welding, adjusted the position of steel pipe 1 by swing roller 8, make the angle of weld seam 2 in the vertical direction and horizontal plane be 90 °;
(2) start welding, move with the speed of 1.4m/min from left to right with steel pipe, welding gun 6 carries welding wire 5 pairs of steel pipes 1 to weld from right to left; Coolant reservoir 3 is connected with cooling fluid output tube 4; 1.5m is spaced apart between described cooling fluid output tube 4 and welding gun 6; When steel pipe 1 moves to cooling fluid transfer lime 4 position, open cooling fluid output tube switch, cooling fluid is evenly flowed out, and butt welded seam cools.
Embodiment 3
Embodiment 3 is with the difference of embodiment 1: a kind of SAW process for straight welded steel pipe weld seam cooling fluid of the present invention, and concrete Ingredient percent is as follows:
Prepare each component according to aforementioned proportion, join in the reactor with whipping appts, heating function, regulate temperature 40 DEG C to be stirred to and dissolve completely, obtain cooling fluid of the present invention.
Described anticorrosive agent is poly-phosphate.Described defoamer is low alveolitoid nonionogenic tenside and polyether nonionic surfactant.
The using method of SAW process for straight welded steel pipe weld seam cooling fluid of the present invention, comprises the steps:
(1) be that the steel pipe 1 of X60 is positioned on the swing roller 8 of welding chassis 7 by material, weld chassis during welding and can at the uniform velocity be moved from left to right by wheel 9; Before welding, adjusted the position of steel pipe 1 by swing roller 8, make the angle of weld seam 2 in the vertical direction and horizontal plane be 90 °;
(2) start welding, move with the speed of 1.6m/min from left to right with steel pipe, welding gun 6 carries welding wire 5 pairs of steel pipes 1 to weld from right to left; Coolant reservoir 3 is connected with cooling fluid output tube 4; 2m is spaced apart between described cooling fluid output tube 4 and welding gun 6; When steel pipe 1 moves to cooling fluid transfer lime 4 position, open cooling fluid output tube switch, cooling fluid is evenly flowed out, and butt welded seam cools.
Comparative example
As shown in Figure 4, Fig. 4 is the X80 steel pipe seam metallographic pattern of comparative example, adopts same weld parameter but does not use cooling fluid of the present invention, comprising the steps:
(1) be that the steel pipe 1 of X80 is positioned on the swing roller 8 of welding chassis 7 by material, weld chassis during welding and can at the uniform velocity be moved from left to right by wheel 9; Before welding, adjusted the position of steel pipe 1 by swing roller 8, make the angle of weld seam 2 in the vertical direction and horizontal plane be 90 °;
(2) start welding, move with the speed of 1.5m/min from left to right with steel pipe, welding gun 6 carries welding wire 5 pairs of steel pipes 1 to weld from right to left.
Table 1 and table 2 are the X80 steel pipe welded with comparative example embodiment 1, respectively from the test result that metallographic pattern, tensile strength, Charpy-V impact power three aspects compare.
(1) metallographic pattern
Fig. 3 and Fig. 4 is the use of cooling fluid of the present invention and the X80 steel pipe seam metallographic pattern not using cooling fluid of the present invention respectively,
What adopt the X80 steel pipe seam of cooling fluid of the present invention as seen from the figure organizes grain-size less, and does not adopt organizing of the X80 steel pipe seam of cooling fluid of the present invention thick.
(2) tensile strength
Sample two steel pipes by GB/T228.1-2010, use WAW-1000 electro-hydraulic servo universal testing machine to carry out tensile strength test, result is as shown in table 1:
Table 1
(3) Charpy-V impact power
Sample two steel pipes by GB/T229-2007, JBS-500 type balance weight impact testing machine carries out Charpy impact test, and test result is as shown in table 2
Table 2
In above-mentioned table 1 and table 2, embodiment 1 and comparative example are comparing respectively in metallographic pattern, tensile strength, Charpy-V impact power three.In metallographic pattern, crystal grain is more tiny, and the intensity of seam organization is higher, and toughness is better.Can learn from Fig. 2 and Fig. 3, what adopt the X80 steel pipe seam of cooling fluid of the present invention organizes grain-size less, and does not adopt organizing of the X80 steel pipe seam of cooling fluid of the present invention thick.As shown in table 1, tensile strength samples two steel pipes by GB/T228.1-2010, and use WAW-1000 electro-hydraulic servo universal testing machine to carry out tensile strength test, after using cooling fluid of the present invention, the tensile strength of steel pipe seam is improved.As shown in table 2, Charpy-V impact power samples two steel pipes by GB/T229-2007, JBS-500 type balance weight impact testing machine carries out Charpy impact test, test result is known, use the ballistic work of the weld seam of the embodiment of the present invention 1 to be greater than comparative example, therefore known use cooling fluid of the present invention can improve the toughness of weld seam.
More than show and describe ultimate principle of the present invention, principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and specification sheets just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and application claims protection domain is defined by appending claims, specification sheets and equivalent thereof.
Claims (5)
1. a SAW process for straight welded steel pipe weld seam cooling fluid, is characterized in that: concrete Ingredient percent is as follows:
2. SAW process for straight welded steel pipe weld seam cooling fluid according to claim 1, is characterized in that: described anticorrosive agent is selected from one or both the combination in poly-phosphate, chromic salt.
3. SAW process for straight welded steel pipe weld seam cooling fluid according to claim 1, is characterized in that: described defoamer is selected from one or both the combination in low alveolitoid nonionogenic tenside, polyether nonionic surfactant.
4. the using method of SAW process for straight welded steel pipe weld seam cooling fluid according to claim 1, is characterized in that comprising the steps:
(1) steel pipe (1) is positioned on the swing roller (8) of welding chassis (7), welds chassis during welding and can at the uniform velocity be moved from left to right by wheel (9); Before welding, by the position of swing roller (8) adjustment steel pipe (1), the angle of weld seam (2) in the vertical direction and horizontal plane is made to be 90 °;
(2) start welding, move from left to right with steel pipe, welding gun (6) conveying welding wire (5) welds from right to left to steel pipe (1); Coolant reservoir (3) is connected with cooling fluid output tube (4); 1 ~ 2m is spaced apart between described cooling fluid output tube (4) and welding gun (6); When steel pipe (1) moves to cooling fluid transfer lime (4) position, open cooling fluid output tube switch, cooling fluid is evenly flowed out, and butt welded seam cools.
5. the using method of SAW process for straight welded steel pipe weld seam cooling fluid according to claim 4, is characterized in that: in step (2), is spaced apart 1.5m between described cooling fluid output tube (4) and welding gun (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410364331.3A CN104263325B (en) | 2014-07-28 | 2014-07-28 | SAW process for straight welded steel pipe weld seam coolant and its application method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410364331.3A CN104263325B (en) | 2014-07-28 | 2014-07-28 | SAW process for straight welded steel pipe weld seam coolant and its application method |
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| CN104263325A true CN104263325A (en) | 2015-01-07 |
| CN104263325B CN104263325B (en) | 2017-08-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107384335A (en) * | 2017-07-29 | 2017-11-24 | 巢湖鹏远金属焊管有限公司 | A kind of metal tube weld is anti-to collapse quick coolant and preparation method thereof |
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2014
- 2014-07-28 CN CN201410364331.3A patent/CN104263325B/en not_active Expired - Fee Related
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| CN102643963A (en) * | 2012-05-09 | 2012-08-22 | 上海福岛化工科技发展有限公司 | Environmental protection water-solubility quenching liquid |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107384335A (en) * | 2017-07-29 | 2017-11-24 | 巢湖鹏远金属焊管有限公司 | A kind of metal tube weld is anti-to collapse quick coolant and preparation method thereof |
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| Publication number | Publication date |
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| CN104263325B (en) | 2017-08-08 |
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