CN1935438A - P92 steel welding process - Google Patents
P92 steel welding process Download PDFInfo
- Publication number
- CN1935438A CN1935438A CN 200610051883 CN200610051883A CN1935438A CN 1935438 A CN1935438 A CN 1935438A CN 200610051883 CN200610051883 CN 200610051883 CN 200610051883 A CN200610051883 A CN 200610051883A CN 1935438 A CN1935438 A CN 1935438A
- Authority
- CN
- China
- Prior art keywords
- welding
- layer
- temperature
- steel
- equal
- 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.)
- Granted
Links
Landscapes
- Arc Welding In General (AREA)
Abstract
The present invention relates to a welding process for P92 steel. Under the condition of operation environment above 5 deg.C said welding process includes the following several steps: 1. preparation before welding: preparing groove; 2. manual argon tungsten arc welding, backing welding; 3. electrode arc welding, filling and cosmetic welding; and 4. after-welding making heat-treatment.
Description
(1) technical field
The present invention relates to the welding procedure of P92 steel.
(2) background technology
The ultra supercritical generation technology has the characteristics of efficient, energy-conservation and environmental protection, is one of clean coal power generation state-of-the-art technology in the world at present.In " 863 Program " project is listed this technology Tenth Five-Year Plan Period by country.Be superhigh-temperature and-pressure parameter operating mode that adapts to the coal-fired unit steam of ultra supercritical and the investment that reduces new power plant construction, the coal-fired unit main steam line of ultra supercritical need use P92 steel (novel jessop).
The P92 steel is to add tungsten (1.7%W) and reduce molybdenum (0.5%Mo) and the new steel grade of exploitation in the P91 steel, because tungsten can significantly improve the creep rupture strength at high temperatures of steel, P92 steel operating temperature can reach 630 ℃ than P91 steel operating temperature height.Aspect welding, except corresponding welding material special must be arranged, and must ask that parameters such as temperature, post weld heat treatment temperature carry out brand-new exploration to preheat temperature, layer.
(3) summary of the invention
In view of common welding procedure is not used in welding P92 steel, the invention provides a kind of standard welding procedure of P92 steel.
The technical solution adopted for the present invention to solve the technical problems is: the welding procedure of P92 steel, under the operating environment more than 5 ℃, adopt the GTAW welding that feels secure, adopt SMAW filling, cover welding, operate according to the following step:
(1). prepare before the weldering:
1.. prepare groove, and groove and internal and external walls both sides are cleared up, until exposing metallic luster;
2.. need the welding base metal material to carry out counterpart with two and assemble, and confirm zero defect in soldered position and the edge 20mm scope thereof;
3.. the counterpart tack welding: the welding material of tack welding, welding procedure are identical when welding with the GTAW bottoming;
(2). GTAW bottoming welding: adopt the two-layer layer of ventilation type argon-arc welding gun bottoming welding, welding parameter is as follows during the argon arc welding bottoming: welding wire is selected the P92 steel special welding wire of φ 2.5mm for use; Tungsten electrode is φ 2.5mm; Argon flow amount is 20～30L/min when being beginning, and flow remains on 10～15L/min during welding, and purity of argon is more than 99.95%; Treat welding zone before the welding and carry out preheating, preheat temperature is 150～200 ℃; Welding arc voltage is 10～14V, and welding current is 80～110A, and speed of welding is 55～80mm/min; The two-layer layer THICKNESS CONTROL of argon arc welding bottoming is in 80～110mm scope;
(3). SMAW is filled, cover welding, and welding one deck at least three road weld seams: treat welding zone before the welding and carry out preheating, preheat temperature is 200～250 ℃, and the preheating width is counted every side 5 times more than or equal to the mother metal wall thickness with bevelled edge; Welding rod cures earlier before use; Welding rod in use is placed on ready access upon use in the heat-preservation cylinder; Adopt the welding method of weave bead welding, keep interlayer temperature smaller or equal to 300 ℃ in the welding process, every layer of bead thickness is controlled to be the diameter smaller or equal to institute's use welding rod, and the amplitude of welding rod swing is smaller or equal to 4 times of the use core diameter, and the welding parameter of each layer of SMAW welding bead is as follows:
The 1st～2 layer of arc welding layer: welding rod is selected the P92 steel welding rod special for special of φ 2.5mm for use, and number of weld passes is 1 road, and welding current is 70～110A, and arc voltage is 20～24V, and speed of welding is 90～150mm/min, and every layer is filled metal thickness is 2.0～2.5mm;
The 3rd～5 layer of arc welding layer: welding rod is selected the P92 steel welding rod special for special of φ 3.2mm for use, and number of weld passes is 3 roads, and welding current is 90～130A, and arc voltage is 20～24V, and speed of welding is 100～160mm/min, and every layer is filled metal thickness is 2.5～3.2mm;
The arc welding layer of other layers: welding rod is selected the P92 steel welding rod special for special of φ 4.0mm for use, and number of weld passes is 3 roads, and welding current is 130～160A, and arc voltage is 20～24V, and speed of welding is 140～220mm/min, and every layer is filled metal thickness is 3.0～4.0mm;
(4). post weld heat treatment, and guarantee that in the post weld heat treatment process any point-to-point transmission temperature difference of welding point is less than 20 ℃:
1.. after the weld seam integral solder finishes, welding point is cooled to 80～100 ℃ and be incubated 1～2 hour; If welding point is can't in time carry out post weld heat treatment the time, to do heating-up temperature immediately be 350 ℃, constant temperature time more than or equal to 2 hours after-baking in postwelding;
2.. adopt the far infrared automatic heater, welding point is warming up to 750～770 ℃, and be incubated 4 hours at least, the insulation width is started at every side 5 times more than or equal to the mother metal wall thickness from the weld seam center, programming rate is smaller or equal to 150 ℃/h before 500 ℃ in the temperature-rise period, and programming rate is smaller or equal to 120 ℃/h after 500 ℃; Welding point is cooling again after insulation, reduces to below 300 ℃ and then is cooled to room temperature in static air, and cooling rate is smaller or equal to 150 ℃/h.
The gloomy welding wire MTS616 of the base of a fruit that recommends to select for use German Bole Thyssen Aktiengesellschaft to produce when carrying out GTAW, the gloomy welding rod MTS616 of the base of a fruit that recommends to select for use German Bole Thyssen Aktiengesellschaft to produce when carrying out SMAW, the tungsten electrode of cold type argon-arc welding gun recommends to adopt cerium tungsten electrode or lanthanum tungsten electrode.
When preparing before the weldering, recommendation is prepared into groove double V-shaped, and root face is 0.5～1mm.
Preheat temperature and heat treatment temperature in step (2), step (3) and step (4) can be used thermocouple temperature measurement, and use infrared ray or laser thermodetector tracking and temperature testing, to guarantee the accuracy of thermometric.Thermocouple has been arranged in the edge of bevel for welding and has been advisable.
The stoving temperature of welding rod is recommended as 350～400 ℃ before the weldering, and the temperature that is used to preserve in the heat-preservation cylinder of welding rod recommends to remain on 80～120 ℃.
The present invention has carried out tight, detailed design on technology, the technological operation rules of standardization is provided for the welding of P92 steel.
(4) specific embodiment
Below in conjunction with the drawings and specific embodiments the present invention is further described.
Embodiment one:
The welding procedure of P92 steel under the operating environment more than 5 ℃, adopts the GTAW welding that feels secure, and adopts SMAW filling, cover welding, operates according to the following step:
(3). prepare before the weldering:
1.. prepare double V-shaped groove, root face is 1.0mm.And groove and internal and external walls both sides cleared up, until exposing metallic luster;
2.. need the welding base metal material to carry out counterpart with two and assemble, and confirm zero defect in soldered position and the edge 20mm scope thereof;
3.. the counterpart tack welding, the welding material of tack welding, welding procedure are identical when welding with the GTAW bottoming;
(4). GTAW bottoming welding: adopt the two-layer layer of ventilation type argon-arc welding gun bottoming welding, the tungsten electrode of ventilation type argon-arc welding gun adopts the cerium tungsten electrode, and welding parameter is as follows during the argon arc welding bottoming: the P92 steel special welding wire that welding wire selects for use German Bole Thyssen Aktiengesellschaft to produce: the gloomy welding wire MTS616/ of base of a fruit φ 2.5mm; Tungsten electrode is φ 2.5mm; Argon flow amount is 20～30L/min when being beginning, and flow remains on 10～15L/min during welding, and purity of argon is more than 99.95%; Treat welding zone before the welding and carry out preheating, preheat temperature is 150～200 ℃; Welding arc voltage is 10～14V, and welding current is 80～110A, and speed of welding is 55～80mm/min; The two-layer layer THICKNESS CONTROL of argon arc welding bottoming is in 80～110mm scope;
(3). SMAW is filled, cover welding, and welding one deck at least three road weld seams: treat welding zone before the welding and carry out preheating, preheat temperature is 200～250 ℃, and the preheating width is counted every side 5 times more than or equal to the mother metal wall thickness with bevelled edge; Welding rod cures earlier before use, and the stoving temperature of welding rod is 350～400 ℃; Welding rod in use is placed on 80～120 ℃ the interior ready access upon use of heat-preservation cylinder; Keep interlayer temperature smaller or equal to 300 ℃ in the welding process, every layer of bead thickness is controlled to be the diameter smaller or equal to institute's use welding rod, and the amplitude of welding rod swing is smaller or equal to 4 times of the use core diameter, and the welding parameter of each layer of SMAW welding bead is as follows:
The 1st～2 layer of arc welding layer: the P92 steel welding rod special for special that welding rod selects for use German Bole Thyssen Aktiengesellschaft to produce: the gloomy welding rod MTS616/ of base of a fruit φ 2.5mm, number of weld passes is 1 road, welding current is 70～110A, arc voltage is 20～24V, speed of welding is 90～150mm/min, and every layer is filled metal thickness is 2.0～2.5mm;
The 3rd～5 layer of arc welding layer: the P92 steel welding rod special for special that welding rod selects for use German Bole Thyssen Aktiengesellschaft to produce: the gloomy welding rod MTS616/ of base of a fruit φ 3.2mm, number of weld passes is 3 roads, welding current is 90～130A, arc voltage is 20～24V, speed of welding is 100～160mm/min, and every layer is filled metal thickness is 2.5～3.2mm;
(4). post weld heat treatment, and guarantee that in the post weld heat treatment process any point-to-point transmission temperature difference of welding point is less than 20 ℃:
1.. after the weld seam integral solder finishes, welding point is cooled to 80～100 ℃ and be incubated 1～2 hour; If welding point is can't in time carry out post weld heat treatment the time, to do heating-up temperature immediately be 350 ℃, constant temperature time more than or equal to 2 hours after-baking in postwelding;
2.. adopt the far infrared automatic heater, welding point is warming up to 750～770 ℃, and be incubated 4 hours at least, the insulation width is started at every side 5 times more than or equal to the mother metal wall thickness from the weld seam center, programming rate is smaller or equal to 150 ℃/h before 500 ℃ in the temperature-rise period, and programming rate is smaller or equal to 120 ℃/h after 500 ℃; Welding point is cooling again after insulation, reduces to below 300 ℃ and then is cooled to room temperature in static air, and cooling rate is smaller or equal to 150 ℃/h.
Preheat temperature and heat treatment temperature in step (2), step (3) and step (4) all need to use thermocouple to monitor thermometric, and use infrared ray or laser thermodetector tracking and temperature testing, and thermocouple is placed on the edge of bevel for welding.
Welded specimen is carried out welding performance to be detected: crack length ≮ 3mm under 180 ° of conditions of clod wash; Tensile strength Rm 〉=620Mpa; Yield strength Re 〉=440Mpa; Elongation after fracture 〉=15%; Absorb merit Akv 〉=41J; Weld hardness HB≤300HB.
Embodiment two
Prepare double V-shaped groove when preparing before the weldering, root face is 1.0mm, and the tungsten electrode of ventilation type argon-arc welding gun adopts the lanthanum tungsten electrode, and all the other welding procedures are identical with embodiment one.Welded specimen is carried out welding performance to be detected: crack length ≮ 3mm under 180 ° of conditions of clod wash; Tensile strength Rm 〉=620Mpa; Yield strength Re 〉=440Mpa; Elongation after fracture 〉=15%; Absorb merit Akv 〉=41J; Weld hardness HB≤300HB.
Embodiment three
Prepare double V-shaped groove when preparing before the weldering, root face is 0.7mm, SMAW has 7 layers of layer, the welding parameter of the 6th～7 layer of arc welding layer is as follows: the P92 steel welding rod special for special that welding rod selects for use German Bole Thyssen Aktiengesellschaft to produce: the gloomy welding rod MTS616/ of base of a fruit φ 4.0mm, number of weld passes is 3 roads, and welding current is 130～160A, and arc voltage is 20～24V, speed of welding is 140～220mm/min, and every layer is filled metal thickness is 3.0～4.0mm
All the other welding procedures are identical with embodiment one.Welded specimen is carried out welding performance to be detected: crack length ≮ 3mm under 180 ° of conditions of clod wash; Tensile strength Rm 〉=620Mpa; Yield strength Re 〉=440Mpa; Elongation after fracture 〉=15%; Absorb merit Akv 〉=41J; Weld hardness HB≤300HB.
Embodiment four
Prepare double V-groove when preparing before the weldering, all the other welding procedures are identical with embodiment one.Welded specimen is carried out welding performance to be detected: crack length ≮ 3mm under 180 ° of conditions of clod wash; Tensile strength Rm 〉=620Mpa; Yield strength Re 〉=440Mpa; Elongation after fracture 〉=15%; Absorb merit Akv 〉=41J; Weld hardness HB≤300HB.
Claims (8)
1.P92 the welding procedure of steel under the operating environment more than 5 ℃, adopts the GTAW welding that feels secure, and adopts SMAW filling, cover welding, operates according to the following step:
(1). prepare before the weldering:
1.. prepare groove, and groove and internal and external walls both sides are cleared up, until exposing metallic luster;
2.. need the welding base metal material to carry out counterpart with two and assemble, and confirm zero defect in soldered position and the edge 20mm scope thereof;
3.. the counterpart tack welding: the welding material of tack welding, welding procedure are identical when welding with the GTAW bottoming;
(2). GTAW bottoming welding: adopt the two-layer layer of ventilation type argon-arc welding gun bottoming welding, welding parameter is as follows during the argon arc welding bottoming: welding wire is selected the P92 steel special welding wire of φ 2.5mm for use; Tungsten electrode is φ 2.5mm; Argon flow amount is 20～30L/min when being beginning, and flow remains on 10～15L/min during welding, and purity of argon is more than 99.95%; Treat welding zone before the welding and carry out preheating, preheat temperature is 150～200 ℃; Welding arc voltage is 10～14V, and welding current is 80～110A, and speed of welding is 55～80mm/min; Every layer of layer THICKNESS CONTROL of argon arc welding bottoming is in 2.8～3.6mm scope;
(3). SMAW is filled, cover welding: treat welding zone before the welding and carry out preheating, preheat temperature is 200～250 ℃, and the preheating width is counted every side 5 times more than or equal to the mother metal wall thickness with bevelled edge; Welding rod cures earlier before use; Welding rod in use is placed on ready access upon use in the heat-preservation cylinder; Adopt the welding method of weave bead welding, keep interlayer temperature smaller or equal to 300 ℃ in the welding process, every layer of bead thickness is controlled to be the diameter smaller or equal to institute's use welding rod, and the amplitude of welding rod swing is smaller or equal to 4 times of the use core diameter, and the welding parameter of each layer of SMAW welding bead is as follows:
The 1st～2 layer of arc welding layer: welding rod is selected the P92 steel welding rod special for special of φ 2.5mm for use, and number of weld passes is 1 road, and welding current is 70～110A, and arc voltage is 20～24V, and speed of welding is 90～150mm/min, and every layer is filled metal thickness is 2.0～2.5mm;
The 3rd～5 layer of arc welding layer: welding rod is selected the P92 steel welding rod special for special of φ 3.2mm for use, and number of weld passes is 3 roads, and welding current is 90～130A, and arc voltage is 20～24V, and speed of welding is 100～160mm/min, and every layer is filled metal thickness is 2.5～3.2mm;
The arc welding layer of other layers: welding rod is selected the P92 steel welding rod special for special of φ 4.0mm for use, and number of weld passes is 3 roads, and welding current is 130～160A, and arc voltage is 20～24V, and speed of welding is 140～220mm/min, and every layer is filled metal thickness is 3.0～4.0mm;
(4). post weld heat treatment, and guarantee that in the post weld heat treatment process any point-to-point transmission temperature difference of welding point is less than 20 ℃:
1.. after the weld seam integral solder finishes, welding point is cooled to 80～100 ℃ and be incubated 1～2 hour; If welding point is can't in time carry out post weld heat treatment the time, to do heating-up temperature immediately be 350 ℃, constant temperature time more than or equal to 2 hours after-baking in postwelding;
2.. adopt the far infrared automatic heater, welding point is warming up to 750～770 ℃, and be incubated 4 hours at least, the insulation width is started at every side 5 times more than or equal to the mother metal wall thickness from the weld seam center, programming rate is smaller or equal to 150 ℃/h before 500 ℃ in the temperature-rise period, and programming rate is smaller or equal to 120 ℃/h after 500 ℃; Welding point is cooling again after insulation, reduces to below 300 ℃ and then is cooled to room temperature in static air, and cooling rate is smaller or equal to 150 ℃/h.
2. as the welding procedure of the P92 steel under the claim 1, it is characterized in that: the gloomy welding wire MTS616 of the base of a fruit that selects for use German Bole Thyssen Aktiengesellschaft to produce when carrying out GTAW, the gloomy welding rod MTS616 of the base of a fruit that selects for use German Bole Thyssen Aktiengesellschaft to produce when carrying out SMAW.
3. the welding procedure of P92 steel as claimed in claim 1 or 2 is characterized in that: preheat temperature in described step (2), step (3) and the step (4) and heat treatment temperature are used thermocouple temperature measurement, and use infrared ray or laser thermodetector tracking and temperature testing.
4. the welding procedure of P92 steel as claimed in claim 1 or 2 is characterized in that: in the step (3), the stoving temperature of welding rod is 350～400 ℃, and the temperature in the heat-preservation cylinder remains on 80～120 ℃.
5. the welding procedure of P92 steel as claimed in claim 3 is characterized in that: in the step (3), the stoving temperature of welding rod is 350～400 ℃, and the temperature in the heat-preservation cylinder remains on 80～120 ℃.
6. the welding procedure of P92 steel as claimed in claim 5 is characterized in that: the tungsten electrode of ventilation type argon-arc welding gun adopts cerium tungsten electrode or lanthanum tungsten electrode.
7. the welding procedure of P92 steel as claimed in claim 3 is characterized in that: described thermocouple is placed on the edge of bevel for welding.
8. the welding procedure of P92 steel as claimed in claim 6 is characterized in that: when preparing before the weldering, the groove of preparation is double V-shaped groove, and root face is 0.5～1.0mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100518834A CN100464923C (en) | 2006-06-09 | 2006-06-09 | P92 steel welding process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100518834A CN100464923C (en) | 2006-06-09 | 2006-06-09 | P92 steel welding process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1935438A true CN1935438A (en) | 2007-03-28 |
| CN100464923C CN100464923C (en) | 2009-03-04 |
Family
ID=37953272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100518834A Active CN100464923C (en) | 2006-06-09 | 2006-06-09 | P92 steel welding process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100464923C (en) |
Cited By (38)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101979206A (en) * | 2010-11-30 | 2011-02-23 | 惠生（南通）重工有限公司 | Process for welding super-thick low-alloy high-strength plates |
| CN101724740B (en) * | 2008-10-16 | 2011-04-13 | 天津诚信达金属检测技术有限公司 | Method for heat treatment of P92 steel |
| CN102152010A (en) * | 2011-04-21 | 2011-08-17 | 浙江工业职业技术学院 | Method for welding bin pump |
| CN102451946A (en) * | 2010-10-25 | 2012-05-16 | 宝山钢铁股份有限公司 | Stable welding method for argon arc welding of high-silicon-content silicon steel |
| CN101927396B (en) * | 2009-06-19 | 2012-06-06 | 攀钢集团攀枝花钢铁研究院有限公司 | Method for welding steel plate by multi-layer welding |
| CN102528238A (en) * | 2012-01-18 | 2012-07-04 | 江苏中核利柏特股份有限公司 | Manual argon-arc welding process of tungsten electrode |
| CN102528237A (en) * | 2012-01-18 | 2012-07-04 | 江苏中核利柏特股份有限公司 | Welding process for carbon steel process pipeline |
| CN102601490A (en) * | 2011-12-20 | 2012-07-25 | 宁夏电力公司电力科学研究院 | Welding process of P92/T92 steel pipe and heating device |
| CN102615380A (en) * | 2012-03-10 | 2012-08-01 | 广东省韶关粤江发电有限责任公司 | Welding process of ultra-supercritical fossil power unit for welding SA335-P91/P92 steel |
| CN102756218A (en) * | 2011-04-27 | 2012-10-31 | 五冶集团上海有限公司 | Benzene hydrogenation engineering heat resistant steel pipeline welding method |
| CN102941397A (en) * | 2012-10-09 | 2013-02-27 | 中冶南方(武汉)威仕工业炉有限公司 | Argon tungsten arc welding method for nickel-based alloy |
| WO2013143282A1 (en) * | 2012-03-27 | 2013-10-03 | 天津大学 | Local heat treatment method of thick-wall p92 pipeline in field condition |
| CN103386537A (en) * | 2012-11-28 | 2013-11-13 | 广东依科电力技术有限公司 | Conical tip argon tungsten-arc welding method adopting 4d tungsten electrode |
| CN103894708A (en) * | 2014-03-18 | 2014-07-02 | 上海振华重工(集团)股份有限公司 | All-position narrow gap hot filament inert gas tungsten electrode shielded welding process |
| CN103978294A (en) * | 2014-06-11 | 2014-08-13 | 东方电气集团东方锅炉股份有限公司 | Welding technology of P92 steel submerged automatic arc welding for power station boiler |
| CN105014186A (en) * | 2014-11-26 | 2015-11-04 | 安徽华兴金属有限责任公司 | Welding method of T-shaped welding seam on steel structural connecting plate |
| CN105033415A (en) * | 2015-07-09 | 2015-11-11 | 安徽金阳金属结构工程有限公司 | 15CrMo steel welding process |
| CN105499762A (en) * | 2015-12-17 | 2016-04-20 | 国网山东省电力公司电力科学研究院 | Welding process capable of avoiding P92 steel weld metal micro cracks |
| CN105925788A (en) * | 2016-06-08 | 2016-09-07 | 中国能源建设集团湖南火电建设有限公司 | Welding heat treatment technology for large-diameter alloy steel tubes |
| CN106624411A (en) * | 2016-12-16 | 2017-05-10 | 东方电气集团东方锅炉股份有限公司 | Method of welding bar-tensioning plate between two workpieces large in heat treatment temperature difference |
| CN106624285A (en) * | 2016-12-29 | 2017-05-10 | 甘肃钢铁职业技术学院 | 350 MW unit main steam pipeline-P91 welding process |
| CN106670738A (en) * | 2016-11-14 | 2017-05-17 | 上海锅炉厂有限公司 | Welding technique of G115 steel used for boiler pipelines |
| CN106735777A (en) * | 2016-12-08 | 2017-05-31 | 苏州热工研究院有限公司 | The welding method for preventing SA335 T/P92 steel weld heat-affected zones granular ferrite from producing |
| CN106903405A (en) * | 2017-04-21 | 2017-06-30 | 华电邹县发电有限公司 | A kind of low thermal weld stress method of improvement P92 pipeline welding performances |
| CN107009100A (en) * | 2017-05-11 | 2017-08-04 | 山东电力建设第工程公司 | A kind of new big footpath skew T preparation method |
| CN108176911A (en) * | 2017-12-18 | 2018-06-19 | 南京德邦金属装备工程股份有限公司 | A kind of P91 materials welding and heat treatment method |
| CN108213657A (en) * | 2016-12-13 | 2018-06-29 | 江苏大秦电气有限公司 | A kind of assembled welding process method of P92 heat resisting steel |
| CN108655535A (en) * | 2017-03-30 | 2018-10-16 | 南阳二机石油装备集团股份有限公司 | A kind of cast steel welding technique |
| CN109702302A (en) * | 2019-01-22 | 2019-05-03 | 湖南机电职业技术学院 | Dissimilar steel welding technology |
| CN110238489A (en) * | 2019-06-13 | 2019-09-17 | 鲁西工业装备有限公司 | A kind of production of high-temperature heat-exchanging and welding procedure |
| CN110548945A (en) * | 2019-08-08 | 2019-12-10 | 上海振华重工启东海洋工程股份有限公司 | Welding process for reamer head wrapping plate of cutter suction dredger |
| CN111014899A (en) * | 2019-12-20 | 2020-04-17 | 中国人民解放军63926部队 | High-temperature-resistant steel butt welding method |
| CN111230255A (en) * | 2020-01-19 | 2020-06-05 | 武汉一冶钢结构有限责任公司 | Welding method for improving low-temperature toughness of 304L austenitic stainless steel welding joint |
| CN111618402A (en) * | 2020-05-30 | 2020-09-04 | 山东平云智能装备有限公司 | Thick plate narrow gap argon tungsten-arc welding process method |
| CN111805063A (en) * | 2020-07-02 | 2020-10-23 | 陕西榆林能源集团横山煤电有限公司 | Large thick wall P92 steel welding method |
| CN112961973A (en) * | 2021-02-01 | 2021-06-15 | 西安交通大学 | Stainless steel pipe doped with element cerium P92 and postweld cyclic heat treatment method thereof |
| CN112958872A (en) * | 2021-02-05 | 2021-06-15 | 安徽马钢设备检修有限公司 | Auxiliary device for welding flat uncoiler mandrel baffle disc fracture and welding process |
| CN115213534A (en) * | 2021-04-21 | 2022-10-21 | 南通市力沛流体阀业有限公司 | F316 valve body and F11 piping dissimilar steel welding method |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09248673A (en) * | 1996-03-18 | 1997-09-22 | Mitsubishi Heavy Ind Ltd | Welding method |
| JPH11320097A (en) * | 1998-05-11 | 1999-11-24 | Babcock Hitachi Kk | Weld joint structure of high cr ferrite steel |
| CN1168569C (en) * | 2002-04-25 | 2004-09-29 | 石家庄电力工业学校焊接培训中心 | T91 steel welding process |
| CN1233496C (en) * | 2002-08-16 | 2005-12-28 | 武汉锅炉股份有限公司 | Arc preheating method for automatic butt welding of T91 pipes |
| JP4188124B2 (en) * | 2003-03-31 | 2008-11-26 | 独立行政法人物質・材料研究機構 | Welded joints of tempered martensitic heat-resistant steel |
| CN100389924C (en) * | 2005-06-02 | 2008-05-28 | 石家庄电力工业学校焊接培训中心 | P91 steel welding method |
-
2006
- 2006-06-09 CN CNB2006100518834A patent/CN100464923C/en active Active
Cited By (53)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101724740B (en) * | 2008-10-16 | 2011-04-13 | 天津诚信达金属检测技术有限公司 | Method for heat treatment of P92 steel |
| CN101927396B (en) * | 2009-06-19 | 2012-06-06 | 攀钢集团攀枝花钢铁研究院有限公司 | Method for welding steel plate by multi-layer welding |
| CN102451946B (en) * | 2010-10-25 | 2013-07-17 | 宝山钢铁股份有限公司 | Stable welding method for argon arc welding of high-silicon-content silicon steel |
| CN102451946A (en) * | 2010-10-25 | 2012-05-16 | 宝山钢铁股份有限公司 | Stable welding method for argon arc welding of high-silicon-content silicon steel |
| CN101979206A (en) * | 2010-11-30 | 2011-02-23 | 惠生（南通）重工有限公司 | Process for welding super-thick low-alloy high-strength plates |
| CN101979206B (en) * | 2010-11-30 | 2015-04-22 | 惠生（南通）重工有限公司 | Process for welding super-thick low-alloy high-strength plates |
| CN102152010A (en) * | 2011-04-21 | 2011-08-17 | 浙江工业职业技术学院 | Method for welding bin pump |
| CN102756218B (en) * | 2011-04-27 | 2016-01-27 | 五冶集团上海有限公司 | Benzene hydrogenation engineering heat resisting steel method for welding pipeline |
| CN102756218A (en) * | 2011-04-27 | 2012-10-31 | 五冶集团上海有限公司 | Benzene hydrogenation engineering heat resistant steel pipeline welding method |
| CN102601490A (en) * | 2011-12-20 | 2012-07-25 | 宁夏电力公司电力科学研究院 | Welding process of P92/T92 steel pipe and heating device |
| CN102528237A (en) * | 2012-01-18 | 2012-07-04 | 江苏中核利柏特股份有限公司 | Welding process for carbon steel process pipeline |
| CN102528238A (en) * | 2012-01-18 | 2012-07-04 | 江苏中核利柏特股份有限公司 | Manual argon-arc welding process of tungsten electrode |
| CN102528237B (en) * | 2012-01-18 | 2013-09-04 | 江苏中核利柏特股份有限公司 | Welding process for carbon steel process pipeline |
| CN102528238B (en) * | 2012-01-18 | 2013-09-04 | 江苏中核利柏特股份有限公司 | Manual argon-arc welding process of tungsten electrode |
| CN102615380A (en) * | 2012-03-10 | 2012-08-01 | 广东省韶关粤江发电有限责任公司 | Welding process of ultra-supercritical fossil power unit for welding SA335-P91/P92 steel |
| WO2013143282A1 (en) * | 2012-03-27 | 2013-10-03 | 天津大学 | Local heat treatment method of thick-wall p92 pipeline in field condition |
| US9663841B2 (en) | 2012-03-27 | 2017-05-30 | Tianjin University | Site conditions thick-wall P92 pipe local heat treatment method |
| CN102941397A (en) * | 2012-10-09 | 2013-02-27 | 中冶南方(武汉)威仕工业炉有限公司 | Argon tungsten arc welding method for nickel-based alloy |
| CN103386537A (en) * | 2012-11-28 | 2013-11-13 | 广东依科电力技术有限公司 | Conical tip argon tungsten-arc welding method adopting 4d tungsten electrode |
| CN103894708A (en) * | 2014-03-18 | 2014-07-02 | 上海振华重工(集团)股份有限公司 | All-position narrow gap hot filament inert gas tungsten electrode shielded welding process |
| CN103978294A (en) * | 2014-06-11 | 2014-08-13 | 东方电气集团东方锅炉股份有限公司 | Welding technology of P92 steel submerged automatic arc welding for power station boiler |
| CN105014186A (en) * | 2014-11-26 | 2015-11-04 | 安徽华兴金属有限责任公司 | Welding method of T-shaped welding seam on steel structural connecting plate |
| CN105033415A (en) * | 2015-07-09 | 2015-11-11 | 安徽金阳金属结构工程有限公司 | 15CrMo steel welding process |
| CN105499762A (en) * | 2015-12-17 | 2016-04-20 | 国网山东省电力公司电力科学研究院 | Welding process capable of avoiding P92 steel weld metal micro cracks |
| CN105925788A (en) * | 2016-06-08 | 2016-09-07 | 中国能源建设集团湖南火电建设有限公司 | Welding heat treatment technology for large-diameter alloy steel tubes |
| CN105925788B (en) * | 2016-06-08 | 2017-10-10 | 中国能源建设集团湖南火电建设有限公司 | Heavy caliber alloy steel-pipe welding Technology for Heating Processing |
| CN106670738A (en) * | 2016-11-14 | 2017-05-17 | 上海锅炉厂有限公司 | Welding technique of G115 steel used for boiler pipelines |
| CN106670738B (en) * | 2016-11-14 | 2019-08-02 | 上海锅炉厂有限公司 | The welding procedure of boiler tubing G115 steel |
| CN106735777A (en) * | 2016-12-08 | 2017-05-31 | 苏州热工研究院有限公司 | The welding method for preventing SA335 T/P92 steel weld heat-affected zones granular ferrite from producing |
| CN106735777B (en) * | 2016-12-08 | 2019-09-24 | 苏州热工研究院有限公司 | The welding method for preventing SA335-T/P92 steel weld heat-affected zone granular ferrite from generating |
| CN108213657A (en) * | 2016-12-13 | 2018-06-29 | 江苏大秦电气有限公司 | A kind of assembled welding process method of P92 heat resisting steel |
| CN106624411A (en) * | 2016-12-16 | 2017-05-10 | 东方电气集团东方锅炉股份有限公司 | Method of welding bar-tensioning plate between two workpieces large in heat treatment temperature difference |
| CN106624285A (en) * | 2016-12-29 | 2017-05-10 | 甘肃钢铁职业技术学院 | 350 MW unit main steam pipeline-P91 welding process |
| CN108655535A (en) * | 2017-03-30 | 2018-10-16 | 南阳二机石油装备集团股份有限公司 | A kind of cast steel welding technique |
| CN106903405A (en) * | 2017-04-21 | 2017-06-30 | 华电邹县发电有限公司 | A kind of low thermal weld stress method of improvement P92 pipeline welding performances |
| CN107009100B (en) * | 2017-05-11 | 2019-10-11 | 山东电力建设第一工程公司 | A kind of novel major diameter skew T production method |
| CN107009100A (en) * | 2017-05-11 | 2017-08-04 | 山东电力建设第工程公司 | A kind of new big footpath skew T preparation method |
| CN108176911A (en) * | 2017-12-18 | 2018-06-19 | 南京德邦金属装备工程股份有限公司 | A kind of P91 materials welding and heat treatment method |
| CN109702302A (en) * | 2019-01-22 | 2019-05-03 | 湖南机电职业技术学院 | Dissimilar steel welding technology |
| CN110238489B (en) * | 2019-06-13 | 2021-07-30 | 鲁西工业装备有限公司 | Manufacturing and welding process of high-temperature heat exchanger |
| CN110238489A (en) * | 2019-06-13 | 2019-09-17 | 鲁西工业装备有限公司 | A kind of production of high-temperature heat-exchanging and welding procedure |
| CN110548945A (en) * | 2019-08-08 | 2019-12-10 | 上海振华重工启东海洋工程股份有限公司 | Welding process for reamer head wrapping plate of cutter suction dredger |
| CN111014899B (en) * | 2019-12-20 | 2021-10-22 | 中国人民解放军63926部队 | High-temperature-resistant steel butt welding method |
| CN111014899A (en) * | 2019-12-20 | 2020-04-17 | 中国人民解放军63926部队 | High-temperature-resistant steel butt welding method |
| CN111230255A (en) * | 2020-01-19 | 2020-06-05 | 武汉一冶钢结构有限责任公司 | Welding method for improving low-temperature toughness of 304L austenitic stainless steel welding joint |
| CN111618402A (en) * | 2020-05-30 | 2020-09-04 | 山东平云智能装备有限公司 | Thick plate narrow gap argon tungsten-arc welding process method |
| CN111805063A (en) * | 2020-07-02 | 2020-10-23 | 陕西榆林能源集团横山煤电有限公司 | Large thick wall P92 steel welding method |
| CN112961973A (en) * | 2021-02-01 | 2021-06-15 | 西安交通大学 | Stainless steel pipe doped with element cerium P92 and postweld cyclic heat treatment method thereof |
| CN112961973B (en) * | 2021-02-01 | 2022-02-22 | 西安交通大学 | Stainless steel pipe doped with element cerium P92 and postweld cyclic heat treatment method thereof |
| CN112958872A (en) * | 2021-02-05 | 2021-06-15 | 安徽马钢设备检修有限公司 | Auxiliary device for welding flat uncoiler mandrel baffle disc fracture and welding process |
| CN112958872B (en) * | 2021-02-05 | 2022-05-27 | 安徽马钢设备检修有限公司 | Fracture welding process for core shaft baffle disc of leveling uncoiler |
| CN115213534A (en) * | 2021-04-21 | 2022-10-21 | 南通市力沛流体阀业有限公司 | F316 valve body and F11 piping dissimilar steel welding method |
| CN115213534B (en) * | 2021-04-21 | 2024-05-03 | 南通市力沛流体阀业有限公司 | Welding method for dissimilar steel of F316 valve body and F11 piping |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100464923C (en) | 2009-03-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100464923C (en) | P92 steel welding process | |
| CN104759743B (en) | A kind of nickel-based alloy pipe argon arc welding process | |
| CN100389924C (en) | P91 steel welding method | |
| CN102049599B (en) | Submerged-arc welding method for ultrahigh-strength steel plate F460Z for ocean structure | |
| JP2008161932A (en) | Wire, flux and process of welding steel cotaining nickel in high content | |
| CN109079420A (en) | A kind of casting defect removing method | |
| CN106825872A (en) | Hardware positive and negative synchronization full penetration technique | |
| CN107709596A (en) | Austenitic heat-resistant alloy and welding structural element | |
| CN107709595A (en) | Austenitic heat-resistant alloy and welding structural element | |
| CN101229605A (en) | Argon-arc welding for austenitic stainless steel using water cooling welding method | |
| CN104625342A (en) | Welded joint welding technology for high-performance bridge steel angle with yield strength being 500 MPa | |
| CN111230264A (en) | Welding method of MIG welding of 304L austenitic stainless steel | |
| CN101683701A (en) | Welding technique of submerged arc welding of mechanical controlled rolling and controlled cooling structural steel | |
| CN105033418A (en) | Q690D high-strength steel welding process | |
| CN105057844A (en) | Welding repair method for cracks on furnace shell of blast furnace | |
| CN102233474A (en) | Argon arc welding process for narrow gap hot wire | |
| CN103878470A (en) | Tungsten electrode argon arc welding process of dissimilar materials of titanium alloy and nickel alloy | |
| CN107498143A (en) | The welding method of P355NH and 18MnD5 dissimilar steels | |
| CN106493481A (en) | Titanium steel composite board flux-cored wire used for welding and preparation method thereof | |
| CN106270977A (en) | A kind of steel plate low temperature environment welding procedure | |
| CN105246642A (en) | A ductile boron bearing nickel based welding material | |
| CN106964872B (en) | A kind of manual electric arc welding SMAW deep hole overlaying method | |
| CN104690396A (en) | Grinding roller surfacing technology for high-chromium wear-resistant material | |
| CN110293280A (en) | It is related to driving mechanism Ω seal-weld nickel alloy cladding DDC crack controlling means | |
| CN117226218A (en) | Build-up welding process of pressurized water reactor nuclear power coolant main pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CHINA ENERGY CONSTRUCTION GROUP ZHEJIANG THERMAL P Free format text: FORMER NAME: ZHEJIANG THERMAL POWER CONSTRUCTION CO. |
|
| CP03 | Change of name, title or address |
Address after: Hangzhou City, Zhejiang Province, 310020 Qingchun Road No. 77 Patentee after: Chinese energy construction group Zhejiang construction of fire and electricity Co., Ltd Address before: Jianggan District Qingchun Road Hangzhou city Zhejiang province 310016 No. 77 Patentee before: Zhejiang Thermal Power Construction Co. |