CN108655535A - A kind of cast steel welding technique - Google Patents
A kind of cast steel welding technique Download PDFInfo
- Publication number
- CN108655535A CN108655535A CN201710201062.2A CN201710201062A CN108655535A CN 108655535 A CN108655535 A CN 108655535A CN 201710201062 A CN201710201062 A CN 201710201062A CN 108655535 A CN108655535 A CN 108655535A
- Authority
- CN
- China
- Prior art keywords
- welding
- welded
- weldingvoltage
- electrode arc
- speed
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/235—Preliminary treatment
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Arc Welding In General (AREA)
Abstract
The present invention provides a kind of cast steel welding technique, is related to welded steel technical field, includes mainly three welding preparation, welding, after welding treatment steps.A kind of cast steel welding technique of the present invention avoids stomata, is mingled with, the weld defects such as crackle, by pull test fracture position in base material；20 DEG C of impact ductility test qualifications；Bend test is qualified；By ultrasonic examination, product quality is good.
Description
Technical field
The invention belongs to welded steel technical fields, and in particular to a kind of cast steel welding technique.
Background technology
The weldability of steel all depends primarily on its chemical composition as its other performance.The weldability of cast steel
Can be poor, welding position easy tos produce stomata, is mingled with, crackle.
Invention content
To solve the above problems, providing a kind of cast steel welding technique.
The invention is realized by the following technical scheme：
（1）Welding preparation
The first, material prepares：
1）Material：ZG35SiMn steel
2）Plate thickness：30mm.
3）Condition of heat treatment：Normalized condition.
The second, the selection of welding method and welding material：
It is welded using welding electrode arc welding, welding material E5016, wlding specification is φ 3.2mm, φ 4mm, φ 5mm, the baking of welding rod
It is 350 DEG C to roast temperature.
Third, welding position are 1G downhand weldings.
4th, weld seam opens X-type welding groove, and groove size is 60 °, and root gap is 0~1mm.
5th, the impurity such as welding groove and its oxide skin, greasy dirt, iron rust, the moisture of both sides 30mm ranges are cleared up.
6th, welding groove and its 75mm ranges are preheated using oxy-acetylene flame, 250 DEG C~300 DEG C of preheating temperature.
（2）Welding
First, prime coat welding, positive bottoming welding uses welding electrode arc welding to be welded with the speed of welding of 90mm/min,
Welding current is 120A, and weldingvoltage 20V, core diameter is φ 3.2mm.After the completion of positive bottoming welding, reverse side carries out clear
Root polish, expose metallic luster carry out back side prime coat welding again, use welding electrode arc welding with the speed of welding of 100mm/min into
Row welding, welding current 130A, weldingvoltage 21V, core diameter are φ 3.2mm.
Second, filled layer welding, front and the first layer filled layer of reverse side weld, and use welding electrode arc welding with 200mm/min's
Speed of welding is welded, welding current 180A, weldingvoltage 24V, and core diameter is φ 4mm.Remaining filled layer uses
Welding electrode arc welding is welded with the speed of welding of 210mm/min, welding current 220A, weldingvoltage 24V, core diameter
For φ 5mm.
Third, capping layer welding, uses welding electrode arc welding to be welded with the speed of welding of 210mm/min, welding current is
220A, weldingvoltage 24V, core diameter are φ 5mm.
（3）Post weld heat treatment
Post weld heat treatment temperature is 600 DEG C~650 DEG C, and soaking time is 2.5 hours, and the type of cooling is furnace cooling, heating side
Formula is heating in stove.
A kind of cast steel welding technique, it is characterised in that：250 DEG C of interlayer temperature when welding.
A kind of cast steel welding technique of the present invention avoids stomata, is mingled with, the weld defects such as crackle, is tried by pulling force
Fracture position is tested in base material；- 20 DEG C of impact ductility test qualifications；Bend test is qualified；By ultrasonic examination, product quality is good
It is good.
Description of the drawings
Fig. 1 is groove schematic diagram.
Fig. 2 is weld path schematic diagrams.
Wherein：1 is prime coat, and 2 be filled layer, and 3 be capping layer.
Specific implementation mode
A kind of cast steel welding technique, includes the following steps：
（1）Welding preparation
The first, material prepares：
1）Material：ZG35SiMn steel
2）Plate thickness：30mm.
3）Condition of heat treatment：Normalized condition.
The second, the selection of welding method and welding material：
It is welded using welding electrode arc welding, welding material E5016, wlding specification is φ 3.2mm, φ 4mm, φ 5mm, the baking of welding rod
It is 350 DEG C to roast temperature.
Third, welding position are 1G downhand weldings.
4th, weld seam opens X-type welding groove, and groove size is 60 °, and root gap is 0~1mm.
5th, the impurity such as welding groove and its oxide skin, greasy dirt, iron rust, the moisture of both sides 30mm ranges are cleared up.
6th, welding groove and its 75mm ranges are preheated using oxy-acetylene flame, 250 DEG C~300 DEG C of preheating temperature.
（2）Welding
First, prime coat welding, positive bottoming welding uses welding electrode arc welding to be welded with the speed of welding of 90mm/min,
Welding current is 120A, and weldingvoltage 20V, core diameter is φ 3.2mm.After the completion of positive bottoming welding, reverse side carries out clear
Root polish, expose metallic luster carry out back side prime coat welding again, use welding electrode arc welding with the speed of welding of 100mm/min into
Row welding, welding current 130A, weldingvoltage 21V, core diameter are φ 3.2mm.
Second, filled layer welding, front and the first layer filled layer of reverse side weld, and use welding electrode arc welding with 200mm/min's
Speed of welding is welded, welding current 180A, weldingvoltage 24V, and core diameter is φ 4mm.Remaining filled layer uses
Welding electrode arc welding is welded with the speed of welding of 210mm/min, welding current 220A, weldingvoltage 24V, core diameter
For φ 5mm.
Third, capping layer welding, uses welding electrode arc welding to be welded with the speed of welding of 210mm/min, welding current is
220A, weldingvoltage 24V, core diameter are φ 5mm.
250 DEG C of interlayer temperature when welding.
Post weld heat treatment temperature is 600 DEG C~650 DEG C, and soaking time is 2.5 hours, and the type of cooling is furnace cooling, is added
Hot mode is heating in stove.
Claims (3)
1. a kind of cast steel welding technique, it is characterised in that：Include the following steps：
（1）Welding preparation
The first, material prepares：
1）Material：ZG35SiMn steel；
2）Plate thickness：30mm；
3）Condition of heat treatment：Normalized condition；
The second, the selection of welding method and welding material：
It is welded using welding electrode arc welding, welding material E5016, wlding specification is φ 3.2mm, φ 4mm, φ 5mm, the baking of welding rod
It is 350 DEG C to roast temperature；
Third, welding position are 1G downhand weldings；
4th, weld seam opens X-type welding groove, and groove size is 60 °, and root gap is 0~1mm；
5th, the impurity such as welding groove and its oxide skin, greasy dirt, iron rust, the moisture of both sides 30mm ranges are cleared up；
6th, welding groove and its 75mm ranges are preheated using oxy-acetylene flame, 250 DEG C~300 DEG C of preheating temperature；
（2）Welding
First, prime coat welding, positive bottoming welding uses welding electrode arc welding to be welded with the speed of welding of 90mm/min,
Welding current is 120A, and weldingvoltage 20V, core diameter is φ 3.2mm；After the completion of positive bottoming welding, reverse side carries out clear
Root polish, expose metallic luster carry out back side prime coat welding again, use welding electrode arc welding with the speed of welding of 100mm/min into
Row welding, welding current 130A, weldingvoltage 21V, core diameter are φ 3.2mm；
Second, filled layer welding, front and the first layer filled layer of reverse side weld, and use welding electrode arc welding with 200mm/min's
Speed of welding is welded, welding current 180A, weldingvoltage 24V, and core diameter is φ 4mm；Remaining filled layer uses
Welding electrode arc welding is welded with the speed of welding of 210mm/min, welding current 220A, weldingvoltage 24V, core diameter
For φ 5mm；
Third, capping layer welding, uses welding electrode arc welding to be welded with the speed of welding of 210mm/min, welding current is
220A, weldingvoltage 24V, core diameter are φ 5mm.
2. a kind of cast steel welding technique according to claim 1, it is characterised in that：250 DEG C of interlayer temperature when welding.
3. a kind of cast steel welding technique according to claim 1, it is characterised in that：Post weld heat treatment temperature is 600
DEG C~650 DEG C, soaking time is 2.5 hours, and the type of cooling is furnace cooling, and mode of heating is heating in stove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710201062.2A CN108655535A (en) | 2017-03-30 | 2017-03-30 | A kind of cast steel welding technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710201062.2A CN108655535A (en) | 2017-03-30 | 2017-03-30 | A kind of cast steel welding technique |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108655535A true CN108655535A (en) | 2018-10-16 |
Family
ID=63787044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710201062.2A Pending CN108655535A (en) | 2017-03-30 | 2017-03-30 | A kind of cast steel welding technique |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108655535A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112388195A (en) * | 2020-09-28 | 2021-02-23 | 巨力索具股份有限公司 | Welding method of medium carbon quenched and tempered cast steel |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1935438A (en) * | 2006-06-09 | 2007-03-28 | 浙江省火电建设公司 | P92 steel welding process |
| JP2008221245A (en) * | 2007-03-09 | 2008-09-25 | Sumitomo Metal Ind Ltd | Butt welding method for steel tube, and method of manufacturing welded steel tube |
| CN101905365A (en) * | 2010-08-10 | 2010-12-08 | 首钢总公司 | Welding method of ultra-thick and high-strength water-power steel |
| CN101913012A (en) * | 2010-08-11 | 2010-12-15 | 南京宝色股份公司 | Two phase stainless steel submerged-arc welding SAW welding procedure |
| CN103128427A (en) * | 2011-12-01 | 2013-06-05 | 安徽跨宇钢结构网架工程有限公司 | Welding construction method of large cast steel modes under low temperature condition |
| CN105014188A (en) * | 2015-07-09 | 2015-11-04 | 安徽金阳金属结构工程有限公司 | Manual arc welding process of 30-mm-thick 16MnDR steel plates |
| CN105750698A (en) * | 2014-12-15 | 2016-07-13 | 重庆迅升机车配件有限公司 | 15 crmo welding technology |
-
2017
- 2017-03-30 CN CN201710201062.2A patent/CN108655535A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1935438A (en) * | 2006-06-09 | 2007-03-28 | 浙江省火电建设公司 | P92 steel welding process |
| JP2008221245A (en) * | 2007-03-09 | 2008-09-25 | Sumitomo Metal Ind Ltd | Butt welding method for steel tube, and method of manufacturing welded steel tube |
| CN101905365A (en) * | 2010-08-10 | 2010-12-08 | 首钢总公司 | Welding method of ultra-thick and high-strength water-power steel |
| CN101913012A (en) * | 2010-08-11 | 2010-12-15 | 南京宝色股份公司 | Two phase stainless steel submerged-arc welding SAW welding procedure |
| CN103128427A (en) * | 2011-12-01 | 2013-06-05 | 安徽跨宇钢结构网架工程有限公司 | Welding construction method of large cast steel modes under low temperature condition |
| CN105750698A (en) * | 2014-12-15 | 2016-07-13 | 重庆迅升机车配件有限公司 | 15 crmo welding technology |
| CN105014188A (en) * | 2015-07-09 | 2015-11-04 | 安徽金阳金属结构工程有限公司 | Manual arc welding process of 30-mm-thick 16MnDR steel plates |
Non-Patent Citations (2)
| Title |
|---|
| 张保吉等: ""铸钢件的焊补"", 《技术与市场》 * |
| 李淑华等编著: "《焊接技术经验》", 30 June 2014, 中国铁道出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112388195A (en) * | 2020-09-28 | 2021-02-23 | 巨力索具股份有限公司 | Welding method of medium carbon quenched and tempered cast steel |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106607668B (en) | Easily weld the manufacturing method for applying side stainless steel clad plate | |
| Dong et al. | Arc joining of aluminum alloy to stainless steel with flux-cored Zn-based filler metal | |
| CN102489842B (en) | Argon tungsten-arc welding process for pearlite heat-resistant steel pipe and austenitic heat-resistant steel pipe | |
| TWI505890B (en) | The valuation method of resistance spot welding joint | |
| CN104625342B (en) | A kind of yield strength is the weld joint welding process at 500MPa grades of high performance bridge steel angles | |
| CN104096954A (en) | Double two-sided synchronous tungsten electrode high-frequency pulse argon arc welding butt welding method | |
| CN109563588A (en) | Member for automobile with resistance weld | |
| CN105960480B (en) | Alloyed hot-dip galvanized steel sheet and its manufacturing method | |
| JP6572986B2 (en) | Resistance spot welding method and resistance spot welding determination method | |
| CN104759788B (en) | 0Cr13Ni5Mo steel metal flux-cored wires and preparation method thereof | |
| JP4998353B2 (en) | Manufacturing method of welded steel pipe | |
| CN109940298A (en) | A kind of Q370qE and Q690qE structural steel for bridge varying strength half-and-half joint complex welding method | |
| CN107900494A (en) | A kind of S32750 super-duplex stainless steels flat cold-rolled sheet self-melting and welding method | |
| CN109848522A (en) | A kind of two-phase stainless steel sheet ultrasonic wave added GTAW pulsating arc welding method | |
| CN108655546A (en) | Dissimilar steel welding technology method | |
| CN110270745A (en) | A kind of welding method for P690QL1 steel flux-cored wire gas metal-arc welding | |
| CN102581450A (en) | Multi-wire submerged-arc multi-layer multi-pass welding process | |
| CN108655535A (en) | A kind of cast steel welding technique | |
| CN103182591B (en) | Welding process for ultra-thick high-strength quenched and tempered S500Q steel plates for hydraulic turbine | |
| CN101791746A (en) | Large high-temperature refractory steel pipeline welding process | |
| CN102744533B (en) | A kind of pinch roll flux-cored wire | |
| CN102225485A (en) | TC18 titanium alloy welding process using laser-argon arc composite heat source | |
| WO2018159764A1 (en) | Resistance spot welding method | |
| CN105945446B (en) | 1Cr12Ni2W1MoV stainless steel metal flux-cored wire and preparation method thereof | |
| CN102189377A (en) | Manufacture process of X100 steel-grade steel plate hot-press bend |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20181016 |
|
| WD01 | Invention patent application deemed withdrawn after publication |