CN105798436A - Fillet welding method of pipe plates in cooler - Google Patents
Fillet welding method of pipe plates in cooler Download PDFInfo
- Publication number
- CN105798436A CN105798436A CN201610329911.8A CN201610329911A CN105798436A CN 105798436 A CN105798436 A CN 105798436A CN 201610329911 A CN201610329911 A CN 201610329911A CN 105798436 A CN105798436 A CN 105798436A
- Authority
- CN
- China
- Prior art keywords
- welding
- groove
- tube plate
- welding bead
- bead
- 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
- B23K9/164—Arc welding or cutting making use of shielding gas making use of a moving fluid
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Arc Welding In General (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention discloses a fillet welding method of pipe plates in a cooler for preventing stress concentration. Firstly, a transverse pipe plate and a vertical pipe plate are placed according to requirements; then, an inclined surface is cut at the end part of the transverse pipe plate; a groove is formed by the inclined surface and the side surface of the vertical pipe plate; an opening of the groove is outwards; an angle of the groove is 45+-5 degrees; a distance between the vertical pipe plate and the transverse pipe plate at the bottom end part of the groove is 0-1 mm; the carbon planing back gouging is performed for one part, in the groove, of the transverse pipe plate before welding; the welding sequence is to firstly perform the backing welding for the groove; the backing welding covers the bottom end of the groove and the outer side of the bottom end of the groove; then, a second welding bead and a third welding bead are welded in the groove; the backing welding in the groove, the second welding bead and the third welding bead are uniformly distributed in thickness; and a fourth welding bead, a fifth welding bead and a sixth welding bead are welded between one side, on opposite direction of the groove, of the transverse pipe plate and the vertical pipe plate. The fillet welding method has the advantage of capability of effectively eliminating the stress concentration problem caused by welding.
Description
Technical field
The present invention relates to a kind of method of tube sheet filled weld in cooler.
Background technology
Cooler is the heat-exchange apparatus of a kind of routine, therefore the thermostability of cooler and corrosion resistance is had strict requirement, has the position of a lot of welding, and welding position is the place being easiest to produce to damage in cooler.Adopting conventional soldering method, the cooler produced easily produces the problem that stress is concentrated, thus cooler in use welding position easily splits.
Summary of the invention
The technical problem to be solved is: provide a kind of method of tube sheet filled weld in cooler avoiding stress to concentrate.
nullFor solving above-mentioned technical problem，The technical solution used in the present invention is: a kind of method of tube sheet filled weld in cooler，First transverse tube plate and vertical tube plate are set on request，Transverse tube plate is perpendicular with vertical tube plate and the front, end of transverse tube plate and the end sides of vertical tube plate corresponding，Then on Qie Ge inclined-plane, transverse tube plate end，This inclined-plane forms groove with vertical tube plate side，The outward opening of groove and the angle of groove are 45 ± 5 °，Vertical tube plate and the transverse tube plate distance between the position of groove bottom is 0～1mm，The position that transverse tube plate is first positioned at before welding groove place carries out carbon plane back chipping，Welding sequence is for first to carry out backing welding to groove place，Backing welding covers the bottom of groove and the outside of groove bottom，Then in groove, carry out the welding of the second welding bead and the 3rd welding bead，It is positioned at the backing welding of groove、The thickness of the second welding bead and the 3rd welding bead is divided equally，Transverse tube plate carries out the 4th welding bead between that side and vertical tube plate that groove is reverse、The welding of the 5th welding bead and the 6th welding bead，Welding method adopts flux cored wire arc welding，Wlding diameter is 1.2mm，Electric current kind and polarity are DC reverse connection，Welding current is 200～210A，Arc voltage is 27～29V，Speed of welding，Backing welding speed of welding is 59～61cm/min，Second welding bead and the 3rd pass weld speed are 40～60cm/min，4th pass weld speed is 55～60cm/min，The speed of welding of the 5th welding bead and the 6th welding bead is 60～70cm/min，Heat input during backing welding is 5～7KJ/cm，The heat input of the second layer and third layer is 7～10KJ/cm，The heat input of the 4th welding bead is 6～8KJ/cm，The heat input of the 5th welding bead and the 6th welding bead is 5～7KJ/cm，Gas flow is 15～20L/min.
Described gas adopts purity to be the carbon dioxide of 99.99%.
Described tube plate thickness H is 6～24mm.
The invention has the beneficial effects as follows: can effectively eliminate the problem of stress concentration produced when welding product angle place, adopt the product that above-mentioned welding method obtains can also meet the instructions for use of level peculiar to vessel.
Accompanying drawing explanation
Fig. 1 is welding bead and welding sequence figure in the method for tube sheet filled weld in cooler of the present invention.
In figure: 1, backing welding, the 2, second welding bead, the 3, the 3rd welding bead, the 4, the 4th welding bead, the 5, the 5th welding bead, the 6, the 6th welding bead, 7, transverse tube plate, 8, vertical tube plate.
Detailed description of the invention
Below in conjunction with accompanying drawing, specific embodiments of the present invention are described in detail.
nullAs shown in Figure 1，The method of tube sheet filled weld in cooler of the present invention，A kind of method of tube sheet filled weld in cooler，First transverse tube plate 7 and vertical tube plate 8 are set on request，Transverse tube plate 7 is perpendicular with vertical tube plate 8 and the front, end of transverse tube plate 7 and the end sides of vertical tube plate 8 corresponding，Then on Qie Ge inclined-plane, transverse tube plate 7 end，This inclined-plane forms groove with vertical tube plate 8 side，The outward opening of groove and the angle of groove are 45 ± 5 °，Vertical tube plate 8 and transverse tube plate 7 distance between the position of groove bottom is 0～1mm，The position that transverse tube plate 7 is first positioned at before welding groove place carries out carbon plane back chipping，Welding sequence is for first to carry out backing welding 1 to groove place，Backing welding 1 covers the bottom of groove and the outside of groove bottom，Then in groove, carry out the welding of the second welding bead 2 and the 3rd welding bead 3，It is positioned at the backing welding 1 of groove、The thickness of the second welding bead 2 and the 3rd welding bead 3 is divided equally，Transverse tube plate 7 carries out the 4th welding bead 4 between that side and vertical tube plate 8 that groove is reverse、The welding of the 5th welding bead 5 and the 6th welding bead 6，Welding method adopts flux cored wire arc welding，Wlding diameter is 1.2mm，Electric current kind and polarity are DC reverse connection，Welding current is 200～210A，Arc voltage is 27～29V，Speed of welding，Backing welding 1 speed of welding is 59～61cm/min，Second welding bead 2 and the 3rd welding bead 3 speed of welding are 40～60cm/min，4th welding bead 4 speed of welding is 55～60cm/min，The speed of welding of the 5th welding bead 5 and the 6th welding bead 6 is 60～70cm/min，Heat input during backing welding 1 is 5～7KJ/cm，The heat input of the second layer 2 and third layer 3 is 7～10KJ/cm，The heat input of the 4th welding bead 4 is 6～8KJ/cm，The heat input of the 5th welding bead 5 and the 6th welding bead 6 is 5～7KJ/cm，Gas flow is 15～20L/min.
Described gas adopts purity to be the carbon dioxide of 99.99%.
Described tube plate thickness H is 6～24mm.
The invention have the advantage that and can effectively eliminate the problem of stress concentration brought of welding, adopt the product that above-mentioned welding method obtains can also meet the instructions for use of level peculiar to vessel, and long service life, thus reducing production cost.
Claims (3)
- null1. the method for tube sheet filled weld in cooler，It is characterized in that: first transverse tube plate and vertical tube plate are set on request，Transverse tube plate is perpendicular with vertical tube plate and the front, end of transverse tube plate and the end sides of vertical tube plate corresponding，Then on Qie Ge inclined-plane, transverse tube plate end，This inclined-plane forms groove with vertical tube plate side，The outward opening of groove and the angle of groove are 45 ± 5 °，Vertical tube plate and the transverse tube plate distance between the position of groove bottom is 0～1mm，The position that transverse tube plate is first positioned at before welding groove place carries out carbon plane back chipping，Welding sequence is for first to carry out backing welding to groove place，Backing welding covers the bottom of groove and the outside of groove bottom，Then in groove, carry out the welding of the second welding bead and the 3rd welding bead，It is positioned at the backing welding of groove、The thickness of the second welding bead and the 3rd welding bead is divided equally，Transverse tube plate carries out the 4th welding bead between that side and vertical tube plate that groove is reverse、The welding of the 5th welding bead and the 6th welding bead，Welding method adopts flux cored wire arc welding，Wlding diameter is 1.2mm，Electric current kind and polarity are DC reverse connection，Welding current is 200～210A，Arc voltage is 27～29V，Speed of welding，Backing welding speed of welding is 59～61cm/min，Second welding bead and the 3rd pass weld speed are 40～60cm/min，4th pass weld speed is 55～60cm/min，The speed of welding of the 5th welding bead and the 6th welding bead is 60～70cm/min，Heat input during backing welding is 5～7KJ/cm，The heat input of the second layer and third layer is 7～10KJ/cm，The heat input of the 4th welding bead is 6～8KJ/cm，The heat input of the 5th welding bead and the 6th welding bead is 5～7KJ/cm，Gas flow is 15～20L/min.
- 2. the method for tube sheet filled weld in cooler according to claim 1, it is characterised in that: described gas adopts purity to be the carbon dioxide of 99.99%.
- 3. the method for tube sheet filled weld in cooler according to claim 1, it is characterised in that: described tube plate thickness H is 6～24mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610329911.8A CN105798436A (en) | 2016-05-18 | 2016-05-18 | Fillet welding method of pipe plates in cooler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610329911.8A CN105798436A (en) | 2016-05-18 | 2016-05-18 | Fillet welding method of pipe plates in cooler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105798436A true CN105798436A (en) | 2016-07-27 |
Family
ID=56452517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610329911.8A Pending CN105798436A (en) | 2016-05-18 | 2016-05-18 | Fillet welding method of pipe plates in cooler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105798436A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106513944A (en) * | 2016-12-16 | 2017-03-22 | 辽宁忠旺铝合金精深加工有限公司 | Welding process for aluminum alloy angle joint |
| CN106624291A (en) * | 2016-12-16 | 2017-05-10 | 辽宁忠旺铝合金精深加工有限公司 | Welding process of semi-roll-rim structure |
| CN108581256A (en) * | 2018-04-26 | 2018-09-28 | 广船国际有限公司 | A kind of two phase stainless steel complete penetraction and fusion in welding fillet weld automatic welding method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201799780U (en) * | 2010-06-12 | 2011-04-20 | 青岛东方铁塔股份有限公司 | Welding junction of T-shaped connector |
| CN103252563A (en) * | 2013-05-24 | 2013-08-21 | 东方电气集团东方锅炉股份有限公司 | T-type joint single-side-welding double-side-forming groove machining technology method |
| CN103737162A (en) * | 2013-12-20 | 2014-04-23 | 南车长江车辆有限公司 | Compound welding method |
| CN103909329A (en) * | 2014-03-14 | 2014-07-09 | 南车南京浦镇车辆有限公司 | Full penetration weld method of HV type groove single face welding seam |
| CN103949754A (en) * | 2014-03-31 | 2014-07-30 | 长治清华机械厂 | Welding technique for medium plate large-size box-shaped beam |
| CN105252108A (en) * | 2015-10-27 | 2016-01-20 | 武昌船舶重工集团有限公司 | Flat overhead corner joint welding method for steel for ship structure |
-
2016
- 2016-05-18 CN CN201610329911.8A patent/CN105798436A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201799780U (en) * | 2010-06-12 | 2011-04-20 | 青岛东方铁塔股份有限公司 | Welding junction of T-shaped connector |
| CN103252563A (en) * | 2013-05-24 | 2013-08-21 | 东方电气集团东方锅炉股份有限公司 | T-type joint single-side-welding double-side-forming groove machining technology method |
| CN103737162A (en) * | 2013-12-20 | 2014-04-23 | 南车长江车辆有限公司 | Compound welding method |
| CN103909329A (en) * | 2014-03-14 | 2014-07-09 | 南车南京浦镇车辆有限公司 | Full penetration weld method of HV type groove single face welding seam |
| CN103949754A (en) * | 2014-03-31 | 2014-07-30 | 长治清华机械厂 | Welding technique for medium plate large-size box-shaped beam |
| CN105252108A (en) * | 2015-10-27 | 2016-01-20 | 武昌船舶重工集团有限公司 | Flat overhead corner joint welding method for steel for ship structure |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106513944A (en) * | 2016-12-16 | 2017-03-22 | 辽宁忠旺铝合金精深加工有限公司 | Welding process for aluminum alloy angle joint |
| CN106624291A (en) * | 2016-12-16 | 2017-05-10 | 辽宁忠旺铝合金精深加工有限公司 | Welding process of semi-roll-rim structure |
| CN108581256A (en) * | 2018-04-26 | 2018-09-28 | 广船国际有限公司 | A kind of two phase stainless steel complete penetraction and fusion in welding fillet weld automatic welding method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102079003B (en) | A kind of aluminium alloy automatic TIG linerless single-side welding double-side forming technique | |
| CN105798436A (en) | Fillet welding method of pipe plates in cooler | |
| CN202726326U (en) | Heat exchanger pipe plate and heat exchange pipe butt-jointing structure | |
| WO2018196251A1 (en) | Method for vertical electrogas welding at oblique position | |
| CN105499749B (en) | A kind of welding procedure of composite plate air cooler plug formula bobbin carriage longitudinal joint | |
| CN104128694A (en) | Longitudinal seam red copper liner welding process of steel sheet pressure vessel and red copper liner used by same | |
| CN104191072A (en) | Welding method of stainless steel clad plate | |
| CN112296494B (en) | Welding flux copper gasket method submerged-arc welding method for jointed boards with different thicknesses | |
| CN102079004B (en) | The aluminium alloy docking linerless single-sided welding double-sided shaping automatic TIG welding of circumferential weld connects method | |
| CN101618473A (en) | Welding method for thin plate weldment and welding equipment thereof | |
| JP2013154359A (en) | Method for manufacturing water-cooling wall panel | |
| CN103658926A (en) | Pipe-pipe butt joint system and construction method of pipe-pipe butt joint system | |
| CN104002029A (en) | Improved submerged-arc plate butt welding method | |
| CN104625359A (en) | Welding technique for base plate of LNG low-temperature tank | |
| CN104191097A (en) | Back-chipping-free welding process for X-type grooves of plates of moderate thickness | |
| CN105945389A (en) | Cooler tube plate butt-welding method | |
| CN103785931A (en) | Stainless steel welding method | |
| CN104139229A (en) | Welding method for forming T-joints | |
| CN203649618U (en) | Welding device for using multifunctional corner welding trolley for cross welding | |
| CN109807438A (en) | A method of for water heater porcelain enamel steel liner girth welding | |
| CN102922158A (en) | Special ship welding method | |
| CN104475927A (en) | Welding method of air cooled condenser single row tube and tube plate employing carbon dioxide and argon mixed gas protection | |
| CN205362965U (en) | String bead yawing force tracking means | |
| CN104668747A (en) | Method for welding tanks of railway tank vehicles | |
| CN203184846U (en) | Welding structure of heat exchange tube and tube plate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160727 |
|
| WD01 | Invention patent application deemed withdrawn after publication |