CN106181091A - A kind of boiler welding process method - Google Patents
A kind of boiler welding process method Download PDFInfo
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- CN106181091A CN106181091A CN201610681072.6A CN201610681072A CN106181091A CN 106181091 A CN106181091 A CN 106181091A CN 201610681072 A CN201610681072 A CN 201610681072A CN 106181091 A CN106181091 A CN 106181091A
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- welding
- weld
- boiler
- temperature
- process method
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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
- 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
Abstract
The invention discloses a kind of boiler welding process method, described boiler welding process method, 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, specifically a kind of boiler welding process method.
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 any kind of Welding Structure, 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 is all according to uniform strength 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 a kind of boiler welding process method, with asking of solving to propose in above-mentioned background technology
Topic.
For achieving the above object, the present invention provides following technical scheme:
A kind of boiler welding process method, 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, 60 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 25min-35min, and high-temperature heating is cooled to 4 DEG C after terminating under nitrogen protection；
(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 heating in water bath, 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
85MPa-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 240A-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 fatty alcohol polyoxy second
Alkene ether, ethanol, stearate, OPEO, disodiumedetate, sodium benzoate, DBSA
Sodium, sodium citrate.
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: the key component of cleaning agent described in step (10) includes basic zirconium chloride, sweet
Oil monoalky lether, TTA, methyl-silicone oil, dimethyl cyclohexyl amine, calcium sulfenyl phenolate.
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
A kind of boiler welding process method, 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, 60 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 25min, and high-temperature heating is cooled to 4 DEG C after terminating under nitrogen protection；
(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 heating in water bath, 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
85MPa, 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 240A, 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:
Described in step (1), the key component of abluent includes fatty alcohol-polyoxyethylene ether, ethanol, stearate, octyl group
Phenol polyethenoxy ether, disodiumedetate, sodium benzoate, dodecylbenzene sodium sulfonate, sodium citrate.
The key component of cleaning agent described in step (10) includes basic zirconium chloride, glycerol monoalkyl ether, methylbenzene a pair of horses going side by side three nitrogen
Azoles, methyl-silicone oil, dimethyl cyclohexyl amine, calcium sulfenyl phenolate.
Embodiment 2
A kind of boiler welding process method, 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, 60 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 nitrogen protection；
(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 heating in water bath, 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
85MPa, 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 240A, 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:
Described in step (1), the key component of abluent includes fatty alcohol-polyoxyethylene ether, ethanol, stearate, octyl group
Phenol polyethenoxy ether, disodiumedetate, sodium benzoate, dodecylbenzene sodium sulfonate, sodium citrate.
The key component of cleaning agent described in step (10) includes basic zirconium chloride, glycerol monoalkyl ether, methylbenzene a pair of horses going side by side three nitrogen
Azoles, methyl-silicone oil, dimethyl cyclohexyl amine, calcium sulfenyl phenolate.
Embodiment 3
A kind of boiler welding process method, 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, 60 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 nitrogen protection；
(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 heating in water bath, 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:
Described in step (1), the key component of abluent includes fatty alcohol-polyoxyethylene ether, ethanol, stearate, octyl group
Phenol polyethenoxy ether, disodiumedetate, sodium benzoate, dodecylbenzene sodium sulfonate, sodium citrate.
The key component of cleaning agent described in step (10) includes basic zirconium chloride, glycerol monoalkyl ether, methylbenzene a pair of horses going side by side three nitrogen
Azoles, methyl-silicone oil, dimethyl cyclohexyl amine, calcium sulfenyl phenolate.
Embodiment 4
A kind of boiler welding process method, 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, 60 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 nitrogen protection；
(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 heating in water bath, 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:
Described in step (1), the key component of abluent includes fatty alcohol-polyoxyethylene ether, ethanol, stearate, octyl group
Phenol polyethenoxy ether, disodiumedetate, sodium benzoate, dodecylbenzene sodium sulfonate, sodium citrate.
The key component of cleaning agent described in step (10) includes basic zirconium chloride, glycerol monoalkyl ether, methylbenzene a pair of horses going side by side three nitrogen
Azoles, methyl-silicone oil, dimethyl cyclohexyl amine, calcium sulfenyl phenolate.
Embodiment 5
A kind of boiler welding process method, 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, 60 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 nitrogen protection；
(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 heating in water bath, 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:
Described in step (1), the key component of abluent includes fatty alcohol-polyoxyethylene ether, ethanol, stearate, octyl group
Phenol polyethenoxy ether, disodiumedetate, sodium benzoate, dodecylbenzene sodium sulfonate, sodium citrate.
The key component of cleaning agent described in step (10) includes basic zirconium chloride, glycerol monoalkyl ether, methylbenzene a pair of horses going side by side three nitrogen
Azoles, methyl-silicone oil, 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. a boiler welding process method, 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 60 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 25min-35min, and high-temperature heating is cooled to 4 DEG C after terminating under nitrogen protection；
(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 heating in water bath, 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
85MPa-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 240A-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.
Boiler welding process method the most according to claim 1, it is characterised in that the master of abluent described in step (1)
Component is wanted to include fatty alcohol-polyoxyethylene ether, ethanol, stearate, OPEO, disodiumedetate, benzene
Sodium formate, dodecylbenzene sodium sulfonate, sodium citrate.
Boiler welding process method the most according to claim 1 and 2, it is characterised in that in step (2), microwave temperature is
125 DEG C, the microwave time is 30min.
Boiler welding process method the most according to claim 3, it is characterised in that weld preheating temperature in step (3)
Being 170 DEG C, water bath heating temperature is 67 DEG C.
Boiler welding process method the most according to claim 4, it is characterised in that in step (4), pressure is 88MPa, connects
The tactile time is 18s.
Boiler welding process method the most according to claim 5, it is characterised in that weld electric current 250A in step (5),
Voltage 36V and speed of welding 125mm/min.
Boiler welding process method the most according to claim 6, it is characterised in that in step (5), the parcel time is 16h,
Parcel temperature is 15 DEG C.
Boiler welding process method the most according to claim 7, it is characterised in that in step (6), irradiation time is
16min。
Boiler welding process method the most according to claim 8, it is characterised in that in step (9), the temperature of heat treatment is
680 DEG C, the time of heat treatment is 1.5h, and programming rate is 80 DEG C, and cooling rate is 70 DEG C.
Boiler welding process method the most according to claim 9, it is characterised in that cleaning agent described in step (10)
Key component includes basic zirconium chloride, glycerol monoalkyl ether, TTA, methyl-silicone oil, dimethyl cyclohexyl amine, sulfuration alkane
Base phenol calcium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610681072.6A CN106181091B (en) | 2016-08-17 | 2016-08-17 | A kind of boiler welding process method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610681072.6A CN106181091B (en) | 2016-08-17 | 2016-08-17 | A kind of boiler welding process method |
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| CN106181091A true CN106181091A (en) | 2016-12-07 |
| CN106181091B CN106181091B (en) | 2018-03-09 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110834180A (en) * | 2019-11-15 | 2020-02-25 | 无锡华能热能设备有限公司 | Assembling and welding processing technology for boiler pulverized coal burner |
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| JP2014050854A (en) * | 2012-09-06 | 2014-03-20 | Kobe Steel Ltd | Tandem submerged arc welding method |
| 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 |
| CN104801820A (en) * | 2014-08-14 | 2015-07-29 | 江苏绿叶锅炉有限公司 | TP347H tube and 1 Cr18Ni9Ti tube row welding technology |
| CN105290577A (en) * | 2015-11-13 | 2016-02-03 | 江苏绿叶锅炉有限公司 | Pipe row welding technology based on ultra-supercritical boiler high-temperature screen type overheater |
| CN105290579A (en) * | 2015-11-13 | 2016-02-03 | 江苏绿叶锅炉有限公司 | Single-layer and single-pass pipe row welding technology of ultra-supercritical boiler high-temperature screen type overheater |
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2016
- 2016-08-17 CN CN201610681072.6A patent/CN106181091B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014050854A (en) * | 2012-09-06 | 2014-03-20 | Kobe Steel Ltd | Tandem submerged arc welding method |
| 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 |
| CN104801820A (en) * | 2014-08-14 | 2015-07-29 | 江苏绿叶锅炉有限公司 | TP347H tube and 1 Cr18Ni9Ti tube row welding technology |
| CN105290577A (en) * | 2015-11-13 | 2016-02-03 | 江苏绿叶锅炉有限公司 | Pipe row welding technology based on ultra-supercritical boiler high-temperature screen type overheater |
| CN105290579A (en) * | 2015-11-13 | 2016-02-03 | 江苏绿叶锅炉有限公司 | Single-layer and single-pass pipe row welding technology of ultra-supercritical boiler high-temperature screen type overheater |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110834180A (en) * | 2019-11-15 | 2020-02-25 | 无锡华能热能设备有限公司 | Assembling and welding processing technology for boiler pulverized coal burner |
| CN110834180B (en) * | 2019-11-15 | 2022-05-13 | 无锡华能热能设备有限公司 | Assembling and welding processing technology for boiler pulverized coal burner |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106181091B (en) | 2018-03-09 |
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