CN106925868A - A kind of cylinder and otic placode welding method - Google Patents
A kind of cylinder and otic placode welding method Download PDFInfo
- Publication number
- CN106925868A CN106925868A CN201511026540.8A CN201511026540A CN106925868A CN 106925868 A CN106925868 A CN 106925868A CN 201511026540 A CN201511026540 A CN 201511026540A CN 106925868 A CN106925868 A CN 106925868A
- Authority
- CN
- China
- Prior art keywords
- welding
- otic placode
- cylinder
- deformation
- tungsten
- 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
- B23K9/16—Arc welding or cutting making use of shielding gas
- B23K9/167—Arc welding or cutting making use of shielding gas and of a non-consumable electrode
-
- 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
- B23K9/0026—Arc welding or cutting specially adapted for particular articles or work
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
Abstract
The invention belongs to welding method, and in particular to a kind of cylinder and otic placode welding method.A kind of cylinder and otic placode welding method, wherein, comprise the steps：Step one：Prepressing deformation, prepressing deformation is applied to cylinder and otic placode, and it is that, along otic placode connecting line direction, compressed object is cylinder, step 2 to apply direction：Welding, is welded, and welding uses argon tungsten-arc welding TIG, and electric current is 70~90A, and tungsten electrode is cerium tungsten, and a diameter of 2.5 millimeters, polarity is direct-flow positive pole, and welding position is horizontal level.Step 3：Removal predegeneration, removes predegeneration after the completion of welding.Effect of the invention is：By using prestrain method, certain anti-deformation is previously applied to upper shell before the welding of upper base pin, so as to offset influence of the welding deformation to the position degree of upper shell otic placode.
Description
Technical field
The invention belongs to welding method, and in particular to a kind of cylinder and otic placode welding method.
Background technology
Upper base is one of key components of high burnup nuclear fuel component, with lifting, control
The irreplaceable functions such as rod entrance processed, bumper and absorbing shock.
Upper shell part undertaken in upper base be oriented to connecting tube, on base central tube upper positioning
And the effect of the connector of lifting and the transport of fuel assembly is provided.Therefore it manufactures difficult point
The corresponding pillar hole system processing for concentrating on part and the position degree size Control of upper shell otic placode
On.
Due to upper base otic placode erection welding position relationship to fuel assembly lifting and transport
Interface, so required precision is high.And otic placode is enterprising on the face of cylinder with the welding position of upper shell
Capable, if the welding deformation in manufacture is not controlled, the circularity of upper shell can be influenceed, lead
Cause the position degree of upper shell otic placode overproof.
The scheme not solved the above problems well in the prior art.
The content of the invention
The present invention is directed to prior art defect, there is provided a kind of cylinder and otic placode welding method.
The technical scheme is that：A kind of cylinder and otic placode welding method, wherein, including under
State step：
Step one：Prepressing deformation
Prepressing deformation is applied to cylinder and otic placode, it is along otic placode connecting line direction, pressure to apply direction
Contracting object is cylinder, and decrement is calculated by following formula
S=KD
Wherein S is decrement, and K is coefficient, and it is barrel diameter to take 0.5%~0.8%, D, single
Position is millimeter
Step 2：Welding
Welded, welding uses argon tungsten-arc welding TIG, electric current is 70~100A, and tungsten electrode is
Cerium tungsten, a diameter of 2.5 millimeters, electric power polarity is straight polarity direct current, and welding position is horizontal level.
Step 3：Removal predeformation
Predeformation is removed after the completion of welding.
A kind of cylinder as described above and otic placode welding method, wherein, described step is a kind of
Decrement scope is 0.5~0.8 millimeter.
Effect of the invention is：By using prestrain method, to upper before the welding of upper base pin
Cylinder is previously applied certain anti-deformation, so as to offset position of the welding deformation to upper shell otic placode
The influence of degree of putting, it is ensured that fuel assembly lifts the reliability of function.
Specific embodiment
A kind of cylinder and otic placode welding method, comprise the steps：
Step one：Prepressing deformation
Prepressing deformation is applied to cylinder and otic placode, it is along otic placode connecting line direction, pressure to apply direction
Contracting object is cylinder, and decrement is calculated by following formula
S=KD
Wherein S is decrement, and K is coefficient, and it is barrel diameter to take 0.5%~0.8%, D, single
Position is millimeter
0.5~0.8 millimeter of decrement can also be taken.
Step 2：Welding
Welded, welding uses argon tungsten-arc welding TIG, electric current is 70~100A, and tungsten electrode is
Cerium tungsten, a diameter of 2.5 millimeters, electric power polarity is straight polarity direct current, and welding position is horizontal level.
Step 3：Removal predeformation
Predeformation is removed after the completion of welding.
Claims (2)
1. a kind of cylinder and otic placode welding method, it is characterised in that comprise the steps：
Step one：Prepressing deformation
Prepressing deformation is applied to cylinder and otic placode, it is along otic placode connecting line direction, pressure to apply direction
Contracting object is cylinder, and decrement is calculated by following formula
S=KD
Wherein S is decrement, and K is coefficient, and it is barrel diameter to take 0.5%~0.8%, D, single
Position is millimeter
Step 2：Welding
Welded, welding uses argon tungsten-arc welding TIG, electric current is 70~100A, and tungsten electrode is
Cerium tungsten, a diameter of 2.5 millimeters, electric power polarity is straight polarity direct current, and welding position is horizontal level.
Step 3：Removal predeformation
Predeformation is removed after the completion of welding.
2. a kind of cylinder as claimed in claim 1 and otic placode welding method, it is characterised in that：
A kind of decrement scope of described step is 0.5~0.8 millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511026540.8A CN106925868A (en) | 2015-12-31 | 2015-12-31 | A kind of cylinder and otic placode welding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511026540.8A CN106925868A (en) | 2015-12-31 | 2015-12-31 | A kind of cylinder and otic placode welding method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106925868A true CN106925868A (en) | 2017-07-07 |
Family
ID=59441297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511026540.8A Pending CN106925868A (en) | 2015-12-31 | 2015-12-31 | A kind of cylinder and otic placode welding method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106925868A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107962349A (en) * | 2017-11-13 | 2018-04-27 | 昆山市福玛精密钣金有限公司 | Pre-determined bit formula is to ear connecting plate preparation process |
| CN111318788A (en) * | 2018-12-17 | 2020-06-23 | 中核建中核燃料元件有限公司 | Lower pipe seat and positioning pin welding method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3112194A1 (en) * | 1981-03-27 | 1982-10-14 | Siemens AG, 1000 Berlin und 8000 München | Method of producing a cooling channel on a component of large area to be force-cooled |
| JPS6234670A (en) * | 1985-08-07 | 1987-02-14 | Mitsubishi Heavy Ind Ltd | Longitudinal warp preventing method in fillet welding by intermittent preceding welding |
| CN101614494A (en) * | 2009-07-21 | 2009-12-30 | 华南理工大学 | The fixed tube sheet type prestressed heat exchanger and the processing method thereof of band external flow guiding cylinder |
| CN102319942A (en) * | 2011-09-05 | 2012-01-18 | 沈阳黎明航空发动机(集团)有限责任公司 | Titanium alloy welded case installation edge pre-deformation welding and micro forming method |
| CN102500868A (en) * | 2011-11-01 | 2012-06-20 | 上海锅炉厂有限公司 | Process for welding lugs on central cylinder body of horizontal preheater |
| CN102794610A (en) * | 2012-08-24 | 2012-11-28 | 沈阳黎明航空发动机(集团)有限责任公司 | Method for processing thin wall welder cases of revolving body structures |
| CN104416315A (en) * | 2013-09-05 | 2015-03-18 | 烟台中集来福士海洋工程有限公司 | Welding device of main side pipe and welding method thereof |
-
2015
- 2015-12-31 CN CN201511026540.8A patent/CN106925868A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3112194A1 (en) * | 1981-03-27 | 1982-10-14 | Siemens AG, 1000 Berlin und 8000 München | Method of producing a cooling channel on a component of large area to be force-cooled |
| JPS6234670A (en) * | 1985-08-07 | 1987-02-14 | Mitsubishi Heavy Ind Ltd | Longitudinal warp preventing method in fillet welding by intermittent preceding welding |
| CN101614494A (en) * | 2009-07-21 | 2009-12-30 | 华南理工大学 | The fixed tube sheet type prestressed heat exchanger and the processing method thereof of band external flow guiding cylinder |
| CN102319942A (en) * | 2011-09-05 | 2012-01-18 | 沈阳黎明航空发动机(集团)有限责任公司 | Titanium alloy welded case installation edge pre-deformation welding and micro forming method |
| CN102500868A (en) * | 2011-11-01 | 2012-06-20 | 上海锅炉厂有限公司 | Process for welding lugs on central cylinder body of horizontal preheater |
| CN102794610A (en) * | 2012-08-24 | 2012-11-28 | 沈阳黎明航空发动机(集团)有限责任公司 | Method for processing thin wall welder cases of revolving body structures |
| CN104416315A (en) * | 2013-09-05 | 2015-03-18 | 烟台中集来福士海洋工程有限公司 | Welding device of main side pipe and welding method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107962349A (en) * | 2017-11-13 | 2018-04-27 | 昆山市福玛精密钣金有限公司 | Pre-determined bit formula is to ear connecting plate preparation process |
| CN111318788A (en) * | 2018-12-17 | 2020-06-23 | 中核建中核燃料元件有限公司 | Lower pipe seat and positioning pin welding method |
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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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170707 |
|
| RJ01 | Rejection of invention patent application after publication |