CN106181148A - A kind of welding procedure of corrosion resistant boiler tail flue gas pipeline alloy - Google Patents
A kind of welding procedure of corrosion resistant boiler tail flue gas pipeline alloy Download PDFInfo
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- CN106181148A CN106181148A CN201610675380.8A CN201610675380A CN106181148A CN 106181148 A CN106181148 A CN 106181148A CN 201610675380 A CN201610675380 A CN 201610675380A CN 106181148 A CN106181148 A CN 106181148A
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- welding
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- temperature
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- 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
-
- 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
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Arc Welding In General (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
The invention discloses the welding procedure of a kind of corrosion resistant boiler tail flue gas pipeline alloy, the welding procedure of described corrosion resistant boiler tail flue gas pipeline alloy, comprise the steps: to prepare, select materials, spot welding, welding pre-treatment, bank of tubes welding, photocuring, detection, deburring, molding, scarfing cinder.Present invention process is simple, easy to operate, has welded use heat-preservation cotton and has covered, crackle will not have occurred because of quick refrigeration.
Description
Technical field
The present invention relates to a kind of boiler manfacturing technical field, a kind of corrosion resistant boiler tail flue gas pipeline alloy
Welding procedure.
Background technology
Often carrying out high-temperature heating in boiler, it is made up of the row's of number steel pipe, and steel pipe is distributed in boiler furnace surrounding, traditional
Welding procedure always there will be crackle.This is because in current welding procedure, commonly used welding method is: welding rod arc
Weldering, submerged-arc welding, gas metal-arc welding, flux cored wire arc welding, gas tungsten arc welding, plasma weldering, electroslag welding
Deng.For corrosion resistant boiler tail flue gas pipeline alloy, welding procedure is to determine the primary influence factor of product quality,
Especially for important Welding Structure.Such as the complete penetraction and fusion in welding Welding Structure such as boiler, pressure vessel, its welding point be all according to etc.
Intensity Design, the intensity of welding point weaken or toughness is not enough, all can cause whole welding and joint premature failure, even
Cause serious catastrophic effect.
Summary of the invention
It is an object of the invention to provide the welding procedure of a kind of corrosion resistant boiler tail flue gas pipeline alloy, to solve
The problem proposed in above-mentioned background technology.
For achieving the above object, the present invention provides following technical scheme:
The welding procedure of a kind of corrosion resistant boiler tail flue gas pipeline alloy, comprises the steps:
(1) prepare: by carrying out polishing rust cleaning at boiler weld bond before welding, be then used by abluent and be carried out, 72 DEG C of bakings
Place at lucifuge after Gan；
(2) select materials: the welding wire and solder flux that meet JIS Z3312-1999 standard are joined in microwave high-temperature equipment, microwave
Temperature is 120 DEG C-130 DEG C, and the microwave time is 15min-35min, and high-temperature heating is cooled to 4 DEG C after terminating under helium is protected；
(3) spot welding: preheated by boiler weld, weld preheating temperature is 160 DEG C-180 DEG C, is thrown by welding wire subsequently
Light is the most stand-by in being positioned over heat-preservation cylinder, and solder flux carries out metal bath heating, and water bath heating temperature is 65 DEG C-68 DEG C；
(4) welding pre-treatment: contacting with welding wire after the weld deburring after preheating, apply pressure contact, pressure is
75MPa-92MPa, time of contact is 15s-20s, then spreads upon on welding wire by the solder flux after water-bath, and lucifuge stands 1h；
(5) bank of tubes welding: electric welding machine carries out parameter setting, weld electric current 225A-260A, voltage 32V-40V and weldering
Connecing speed 120mm-130mm/min, first carry out front welding, the texture then according to weld carries out reverse side welding, all
Welding uses asbestos to wrap up after terminating, and the parcel time is 12h-18h, and parcel temperature is 12 DEG C-18 DEG C；
(6) photocuring: being removed by asbestos, carry out ultraviolet light irradiation subsequently, irradiation time is 13min-18min；
(7) detection: use survey meter that weld carries out carrying out flaw detection, and it is smooth to carry out reconditioning；
(8) deburring: weld is again placed in flash trimmer and carries out deburring；
(9) molding: weld entirety is carried out heat treatment, the temperature of heat treatment is 650 DEG C-700 DEG C, the time of heat treatment
For 1h-2h, programming rate is 50 DEG C-100 DEG C, and cooling rate is 60 DEG C-80 DEG C；
(10) scarfing cinder: the weld after molding is carried out the removing of slag, and uses detergent treatment.
As the further scheme of the present invention: described in step (1), the key component of abluent includes triethylene glycol butyl ether
Amine, butyl glycol ether, stearate, hydroxyacetic acid, disodiumedetate, sodium carbonate, dodecylbenzene sodium sulfonate, Fructus Citri Limoniae
Acid sodium.
As the further scheme of the present invention: in step (2), microwave temperature is 125 DEG C, the microwave time is 30min.
As the further scheme of the present invention: in step (3), weld preheating temperature is 170 DEG C, and water bath heating temperature is
67℃。
As the further scheme of the present invention: in step (4), pressure is 88MPa, time of contact is 18s.
As the further scheme of the present invention: weld electric current 250A, voltage 36V and speed of welding in step (5)
125mm/min。
As the further scheme of the present invention: in step (5), the parcel time is 16h, parcel temperature is 15 DEG C.
As the further scheme of the present invention: in step (6), irradiation time is 16min.
As the further scheme of the present invention: in step (9), the temperature of heat treatment is 680 DEG C, the time of heat treatment is
1.5h, programming rate is 80 DEG C, and cooling rate is 70 DEG C.
As the further scheme of the present invention: described in step (10), the key component of cleaning agent includes lauryl methyl oxygen
Change amine, propylene glycol monomethyl ether, TTA, aliphatic alcohol polyoxyvinethene phosphate, dimethyl cyclohexyl amine, sulfenyl phenolate
Calcium.
Compared with prior art, the invention has the beneficial effects as follows:
Easily operated motility is good, and Technological adaptability is strong, to work place without particular/special requirement, can weld in any position,
On the premise of guaranteeing that weldquality meets corresponding technical standard and product technology price modification on request, reach the highest welding efficiency
With minimum production cost, to obtain maximum economic benefit.
Detailed description of the invention
Below in conjunction with the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described,
Obviously, described embodiment is only a part of embodiment of the present invention rather than whole embodiments.Based in the present invention
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, all
Belong to the scope of protection of the invention.
Embodiment 1
The welding procedure of a kind of corrosion resistant boiler tail flue gas pipeline alloy, comprises the steps:
(1) prepare: by carrying out polishing rust cleaning at boiler weld bond before welding, be then used by abluent and be carried out, 72 DEG C of bakings
Place at lucifuge after Gan；
(2) select materials: the welding wire and solder flux that meet JIS Z3312-1999 standard are joined in microwave high-temperature equipment, microwave
Temperature is 120 DEG C, and the microwave time is 15min, and high-temperature heating is cooled to 4 DEG C after terminating under helium is protected；
(3) spot welding: preheated by boiler weld, weld preheating temperature is 160 DEG C, is polished by welding wire subsequently and puts
In being placed in heat-preservation cylinder stand-by, solder flux carries out metal bath heating, and water bath heating temperature is 65 DEG C；
(4) welding pre-treatment: contacting with welding wire after the weld deburring after preheating, apply pressure contact, pressure is
75MPa, time of contact is 15s, then spreads upon on welding wire by the solder flux after water-bath, and lucifuge stands 1h；
(5) bank of tubes welding: electric welding machine carries out parameter setting, weld electric current 225A, voltage 32V and speed of welding
120mm/min, first carries out front welding, and the texture then according to weld carries out reverse side welding, and all welding make after terminating
Wrapping up with asbestos, the parcel time is 12h, and parcel temperature is 12 DEG C；
(6) photocuring: being removed by asbestos, carry out ultraviolet light irradiation subsequently, irradiation time is 13min；
(7) detection: use survey meter that weld carries out carrying out flaw detection, and it is smooth to carry out reconditioning；
(8) deburring: weld is again placed in flash trimmer and carries out deburring；
(9) molding: weld entirety is carried out heat treatment, the temperature of heat treatment is 650 DEG C, and the time of heat treatment is 1h,
Programming rate is 50 DEG C, and cooling rate is 60 DEG C；
(10) scarfing cinder: the weld after molding is carried out the removing of slag, and uses detergent treatment.
Wherein:
The key component of abluent described in step (1) include triethylene glycol butyl ether amine, butyl glycol ether, stearate,
Hydroxyacetic acid, disodiumedetate, sodium carbonate, dodecylbenzene sodium sulfonate, sodium citrate.
Described in step (10), the key component of cleaning agent includes lauryl methyl amine oxide, propylene glycol monomethyl ether, methylbenzene
A pair of horses going side by side triazole, aliphatic alcohol polyoxyvinethene phosphate, dimethyl cyclohexyl amine, calcium sulfenyl phenolate.
Embodiment 2
The welding procedure of a kind of corrosion resistant boiler tail flue gas pipeline alloy, comprises the steps:
(1) prepare: by carrying out polishing rust cleaning at boiler weld bond before welding, be then used by abluent and be carried out, 72 DEG C of bakings
Place at lucifuge after Gan；
(2) select materials: the welding wire and solder flux that meet JIS Z3312-1999 standard are joined in microwave high-temperature equipment, microwave
Temperature is 122 DEG C, and the microwave time is 28min, and high-temperature heating is cooled to 4 DEG C after terminating under helium is protected；
(3) spot welding: preheated by boiler weld, weld preheating temperature is 165 DEG C, is polished by welding wire subsequently and puts
In being placed in heat-preservation cylinder stand-by, solder flux carries out metal bath heating, and water bath heating temperature is 66 DEG C；
(4) welding pre-treatment: contacting with welding wire after the weld deburring after preheating, apply pressure contact, pressure is
75MPa, time of contact is 15s, then spreads upon on welding wire by the solder flux after water-bath, and lucifuge stands 1h；
(5) bank of tubes welding: electric welding machine carries out parameter setting, weld electric current 225A, voltage 32V and speed of welding
120mm/min, first carries out front welding, and the texture then according to weld carries out reverse side welding, and all welding make after terminating
Wrapping up with asbestos, the parcel time is 12h, and parcel temperature is 12 DEG C；
(6) photocuring: being removed by asbestos, carry out ultraviolet light irradiation subsequently, irradiation time is 14min；
(7) detection: use survey meter that weld carries out carrying out flaw detection, and it is smooth to carry out reconditioning；
(8) deburring: weld is again placed in flash trimmer and carries out deburring；
(9) molding: weld entirety is carried out heat treatment, the temperature of heat treatment is 652 DEG C, and the time of heat treatment is
1.1h, programming rate is 62 DEG C, and cooling rate is 63 DEG C；
(10) scarfing cinder: the weld after molding is carried out the removing of slag, and uses detergent treatment.
Wherein:
The key component of abluent described in step (1) include triethylene glycol butyl ether amine, butyl glycol ether, stearate,
Hydroxyacetic acid, disodiumedetate, sodium carbonate, dodecylbenzene sodium sulfonate, sodium citrate.
Described in step (10), the key component of cleaning agent includes lauryl methyl amine oxide, propylene glycol monomethyl ether, methylbenzene
A pair of horses going side by side triazole, aliphatic alcohol polyoxyvinethene phosphate, dimethyl cyclohexyl amine, calcium sulfenyl phenolate.
Embodiment 3
The welding procedure of a kind of corrosion resistant boiler tail flue gas pipeline alloy, comprises the steps:
(1) prepare: by carrying out polishing rust cleaning at boiler weld bond before welding, be then used by abluent and be carried out, 72 DEG C of bakings
Place at lucifuge after Gan；
(2) select materials: the welding wire and solder flux that meet JIS Z3312-1999 standard are joined in microwave high-temperature equipment, microwave
Temperature is 125 DEG C, and the microwave time is 30min, and high-temperature heating is cooled to 4 DEG C after terminating under helium is protected；
(3) spot welding: preheated by boiler weld, weld preheating temperature is 170 DEG C, is polished by welding wire subsequently and puts
In being placed in heat-preservation cylinder stand-by, solder flux carries out metal bath heating, and water bath heating temperature is 67 DEG C；
(4) welding pre-treatment: contacting with welding wire after the weld deburring after preheating, apply pressure contact, pressure is
88MPa, time of contact is 18s, then spreads upon on welding wire by the solder flux after water-bath, and lucifuge stands 1h；
(5) bank of tubes welding: electric welding machine carries out parameter setting, weld electric current 250A, voltage 36V and speed of welding
125mm/min, first carries out front welding, and the texture then according to weld carries out reverse side welding, and all welding make after terminating
Wrapping up with asbestos, the parcel time is 16h, and parcel temperature is 15 DEG C；
(6) photocuring: being removed by asbestos, carry out ultraviolet light irradiation subsequently, irradiation time is 16min；
(7) detection: use survey meter that weld carries out carrying out flaw detection, and it is smooth to carry out reconditioning；
(8) deburring: weld is again placed in flash trimmer and carries out deburring；
(9) molding: weld entirety is carried out heat treatment, the temperature of heat treatment is 680 DEG C, and the time of heat treatment is
1.5h, programming rate is 80 DEG C, and cooling rate is 70 DEG C；
(10) scarfing cinder: the weld after molding is carried out the removing of slag, and uses detergent treatment.
Wherein:
The key component of abluent described in step (1) include triethylene glycol butyl ether amine, butyl glycol ether, stearate,
Hydroxyacetic acid, disodiumedetate, sodium carbonate, dodecylbenzene sodium sulfonate, sodium citrate.
Described in step (10), the key component of cleaning agent includes lauryl methyl amine oxide, propylene glycol monomethyl ether, methylbenzene
A pair of horses going side by side triazole, aliphatic alcohol polyoxyvinethene phosphate, dimethyl cyclohexyl amine, calcium sulfenyl phenolate.
Embodiment 4
The welding procedure of a kind of corrosion resistant boiler tail flue gas pipeline alloy, comprises the steps:
(1) prepare: by carrying out polishing rust cleaning at boiler weld bond before welding, be then used by abluent and be carried out, 72 DEG C of bakings
Place at lucifuge after Gan；
(2) select materials: the welding wire and solder flux that meet JIS Z3312-1999 standard are joined in microwave high-temperature equipment, microwave
Temperature is 129 DEG C, and the microwave time is 32min, and high-temperature heating is cooled to 4 DEG C after terminating under helium is protected；
(3) spot welding: preheated by boiler weld, weld preheating temperature is 172 DEG C, is polished by welding wire subsequently and puts
In being placed in heat-preservation cylinder stand-by, solder flux carries out metal bath heating, and water bath heating temperature is 67 DEG C；
(4) welding pre-treatment: contacting with welding wire after the weld deburring after preheating, apply pressure contact, pressure is
91MPa, time of contact is 18s, then spreads upon on welding wire by the solder flux after water-bath, and lucifuge stands 1h；
(5) bank of tubes welding: electric welding machine carries out parameter setting, weld electric current 255A, voltage 38V and speed of welding
127mm/min, first carries out front welding, and the texture then according to weld carries out reverse side welding, and all welding make after terminating
Wrapping up with asbestos, the parcel time is 17h, and parcel temperature is 17 DEG C；
(6) photocuring: being removed by asbestos, carry out ultraviolet light irradiation subsequently, irradiation time is 16min；
(7) detection: use survey meter that weld carries out carrying out flaw detection, and it is smooth to carry out reconditioning；
(8) deburring: weld is again placed in flash trimmer and carries out deburring；
(9) molding: weld entirety is carried out heat treatment, the temperature of heat treatment is 692 DEG C, and the time of heat treatment is
1.8h, programming rate is 90 DEG C, and cooling rate is 75 DEG C；
(10) scarfing cinder: the weld after molding is carried out the removing of slag, and uses detergent treatment.
Wherein:
The key component of abluent described in step (1) include triethylene glycol butyl ether amine, butyl glycol ether, stearate,
Hydroxyacetic acid, disodiumedetate, sodium carbonate, dodecylbenzene sodium sulfonate, sodium citrate.
Described in step (10), the key component of cleaning agent includes lauryl methyl amine oxide, propylene glycol monomethyl ether, methylbenzene
A pair of horses going side by side triazole, aliphatic alcohol polyoxyvinethene phosphate, dimethyl cyclohexyl amine, calcium sulfenyl phenolate.
Embodiment 5
The welding procedure of a kind of corrosion resistant boiler tail flue gas pipeline alloy, comprises the steps:
(1) prepare: by carrying out polishing rust cleaning at boiler weld bond before welding, be then used by abluent and be carried out, 72 DEG C of bakings
Place at lucifuge after Gan；
(2) select materials: the welding wire and solder flux that meet JIS Z3312-1999 standard are joined in microwave high-temperature equipment, microwave
Temperature is 130 DEG C, and the microwave time is 35min, and high-temperature heating is cooled to 4 DEG C after terminating under helium is protected；
(3) spot welding: preheated by boiler weld, weld preheating temperature is 180 DEG C, is polished by welding wire subsequently and puts
In being placed in heat-preservation cylinder stand-by, solder flux carries out metal bath heating, and water bath heating temperature is 68 DEG C；
(4) welding pre-treatment: contacting with welding wire after the weld deburring after preheating, apply pressure contact, pressure is
92MPa, time of contact is 20s, then spreads upon on welding wire by the solder flux after water-bath, and lucifuge stands 1h；
(5) bank of tubes welding: electric welding machine carries out parameter setting, weld electric current 260A, voltage 40V and speed of welding
130mm/min, first carries out front welding, and the texture then according to weld carries out reverse side welding, and all welding make after terminating
Wrapping up with asbestos, the parcel time is 18h, and parcel temperature is 18 DEG C；
(6) photocuring: being removed by asbestos, carry out ultraviolet light irradiation subsequently, irradiation time is 18min；
(7) detection: use survey meter that weld carries out carrying out flaw detection, and it is smooth to carry out reconditioning；
(8) deburring: weld is again placed in flash trimmer and carries out deburring；
(9) molding: weld entirety is carried out heat treatment, the temperature of heat treatment is 700 DEG C, and the time of heat treatment is 2h,
Programming rate is 100 DEG C, and cooling rate is 80 DEG C；
(10) scarfing cinder: the weld after molding is carried out the removing of slag, and uses detergent treatment.
Wherein:
The key component of abluent described in step (1) include triethylene glycol butyl ether amine, butyl glycol ether, stearate,
Hydroxyacetic acid, disodiumedetate, sodium carbonate, dodecylbenzene sodium sulfonate, sodium citrate.
Described in step (10), the key component of cleaning agent includes lauryl methyl amine oxide, propylene glycol monomethyl ether, methylbenzene
A pair of horses going side by side triazole, aliphatic alcohol polyoxyvinethene phosphate, dimethyl cyclohexyl amine, calcium sulfenyl phenolate.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of the spirit or essential attributes of the present invention, it is possible to realize the present invention in other specific forms.Therefore, no matter
From the point of view of which point, all should regard embodiment as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit requires rather than described above limits, it is intended that all by fall in the implication of equivalency and scope of claim
Change is included in the present invention.
Although moreover, it will be appreciated that this specification is been described by according to embodiment, but the most each embodiment only wraps
Containing an independent technical scheme, this narrating mode of description is only that for clarity sake those skilled in the art should
Description can also be formed those skilled in the art through appropriately combined as an entirety, the technical scheme in each embodiment
May be appreciated other embodiments.
Claims (10)
1. the welding procedure of a corrosion resistant boiler tail flue gas pipeline alloy, it is characterised in that comprise the steps:
(1) prepare: by carrying out polishing rust cleaning at boiler weld bond before welding, be then used by abluent and be carried out, after 72 DEG C dry
Place at lucifuge；
(2) select materials: the welding wire and solder flux that meet JIS Z3312-1999 standard are joined in microwave high-temperature equipment, microwave temperature
Being 120 DEG C-130 DEG C, the microwave time is 15min-35min, and high-temperature heating is cooled to 4 DEG C after terminating under helium is protected；
(3) spot welding: preheated by boiler weld, weld preheating temperature is 160 DEG C-180 DEG C, is polished also by welding wire subsequently
In being positioned over heat-preservation cylinder stand-by, solder flux carries out metal bath heating, and water bath heating temperature is 65 DEG C-68 DEG C；
(4) welding pre-treatment: contacting with welding wire after the weld deburring after preheating, apply pressure contact, pressure is
75MPa-92MPa, time of contact is 15s-20s, then spreads upon on welding wire by the solder flux after water-bath, and lucifuge stands 1h；
(5) bank of tubes welding: electric welding machine carries out parameter setting, weld electric current 225A-260A, voltage 32V-40V and welding speed
Degree 120mm-130mm/min, first carries out front welding, and the texture then according to weld carries out reverse side welding, all welding
Using asbestos to wrap up after end, the parcel time is 12h-18h, and parcel temperature is 12 DEG C-18 DEG C；
(6) photocuring: being removed by asbestos, carry out ultraviolet light irradiation subsequently, irradiation time is 13min-18min；
(7) detection: use survey meter that weld carries out carrying out flaw detection, and it is smooth to carry out reconditioning；
(8) deburring: weld is again placed in flash trimmer and carries out deburring；
(9) molding: weld entirety is carried out heat treatment, the temperature of heat treatment is 650 DEG C-700 DEG C, and the time of heat treatment is
1h-2h, programming rate is 50 DEG C-100 DEG C, and cooling rate is 60 DEG C-80 DEG C；
(10) scarfing cinder: the weld after molding is carried out the removing of slag, and uses detergent treatment.
The welding procedure of corrosion resistant boiler tail flue gas pipeline alloy the most according to claim 1, it is characterised in that step
Suddenly the key component of abluent described in (1) includes triethylene glycol butyl ether amine, butyl glycol ether, stearate, hydroxyacetic acid, second
Edetate disodium, sodium carbonate, dodecylbenzene sodium sulfonate, sodium citrate.
The welding procedure of corrosion resistant boiler tail flue gas pipeline alloy the most according to claim 1 and 2, its feature exists
In, in step (2), microwave temperature is 125 DEG C, and the microwave time is 30min.
The welding procedure of corrosion resistant boiler tail flue gas pipeline alloy the most according to claim 3, it is characterised in that step
Suddenly in (3), weld preheating temperature is 170 DEG C, and water bath heating temperature is 67 DEG C.
The welding procedure of corrosion resistant boiler tail flue gas pipeline alloy the most according to claim 4, it is characterised in that step
Suddenly in (4), pressure is 88MPa, and time of contact is 18s.
The welding procedure of corrosion resistant boiler tail flue gas pipeline alloy the most according to claim 5, it is characterised in that step
Suddenly weld electric current 250A, voltage 36V and speed of welding 125mm/min in (5).
The welding procedure of corrosion resistant boiler tail flue gas pipeline alloy the most according to claim 6, it is characterised in that step
Suddenly in (5), the parcel time is 16h, and parcel temperature is 15 DEG C.
The welding procedure of corrosion resistant boiler tail flue gas pipeline alloy the most according to claim 7, it is characterised in that step
Suddenly in (6), irradiation time is 16min.
The welding procedure of corrosion resistant boiler tail flue gas pipeline alloy the most according to claim 8, it is characterised in that step
Suddenly in (9), the temperature of heat treatment is 680 DEG C, and the time of heat treatment is 1.5h, and programming rate is 80 DEG C, and cooling rate is 70 DEG C.
The welding procedure of corrosion resistant boiler tail flue gas pipeline alloy the most according to claim 9, it is characterised in that
The key component of cleaning agent described in step (10) include lauryl methyl amine oxide, propylene glycol monomethyl ether, TTA,
Aliphatic alcohol polyoxyvinethene phosphate, dimethyl cyclohexyl amine, calcium sulfenyl phenolate.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110961858A (en) * | 2019-12-23 | 2020-04-07 | 东方电气集团东方汽轮机有限公司 | High-frequency pulse electric arc repairing method for precision casting defect of heavy gas turbine equiaxial crystal blade |
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| CN105473276A (en) * | 2013-08-06 | 2016-04-06 | 千住金属工业株式会社 | Conductive bonding agent and soldered joint |
| CN103862141A (en) * | 2014-03-11 | 2014-06-18 | 中国化学工程第六建设有限公司 | Chemical composite steel pipe welding process |
| CN104801834A (en) * | 2014-08-14 | 2015-07-29 | 江苏绿叶锅炉有限公司 | T91 water wall tube row welding technology |
| CN105290570A (en) * | 2015-09-25 | 2016-02-03 | 王灿炳 | Metal surface treatment method |
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| CN110961858A (en) * | 2019-12-23 | 2020-04-07 | 东方电气集团东方汽轮机有限公司 | High-frequency pulse electric arc repairing method for precision casting defect of heavy gas turbine equiaxial crystal blade |
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Address after: Changan city Jiaxing town Zhejiang city of Haining province (314408 agricultural areas) and tide Road No. 36 Patentee after: Zhejiang Tefu Development Co., Ltd Address before: Changan city Jiaxing town Zhejiang city of Haining province (314408 agricultural areas) and tide Road No. 36 Patentee before: Zhejiang Teffu Boiler Co., Ltd. |