CN108746948A - T connector full penetration exempts from back chipping Lincoln weld horizontal position welding technique - Google Patents
T connector full penetration exempts from back chipping Lincoln weld horizontal position welding technique Download PDFInfo
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- CN108746948A CN108746948A CN201810636134.0A CN201810636134A CN108746948A CN 108746948 A CN108746948 A CN 108746948A CN 201810636134 A CN201810636134 A CN 201810636134A CN 108746948 A CN108746948 A CN 108746948A
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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
- B23K9/00—Arc welding or cutting
- B23K9/18—Submerged-arc welding
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Abstract
The invention discloses T connector full penetrations to exempt from back chipping Lincoln weld horizontal position welding technique, includes the following steps：S1：48.5 ° of the symmetrical groove of K-type, root face 1-2mm are processed on web；S2：Along the thickness direction of the symmetrical groove of K-type, it is prefabricated that compartment of terrain carries out multiple tack welding grooves on the symmetrical groove of the K-type, is highly less than the symmetrical groove 3mm of the K-type；S3：Web and wing plate are assembled, it is horizontal position welding position to make T connector position while welding；S4：Tack welding, 110~125A of welding current, 20~24V of weldingvoltage, 70~110mm/min of speed of welding are carried out by tack welding groove position using manual arc soldering method；S5：After the completion of positioning welding, bottoming, filling, capping are carried out to the symmetrical groove of the K-type of web and wing plate using Lincoln weld horizontal position welding.The present invention makes weld seam realization in T connector full penetration horizontal position exempt from back chipping automatic welding, and protects operating personnel's health, both ensure that welding quality, welding deformation is also within controlled range.
Description
Technical field
The present invention relates to welding technology fields, and in particular to a kind of T connector full penetration exempts from back chipping Lincoln weld horizontal position welding
Technique.
Background technology
National emphasis research and development program element --- the function of certain ultra-large type protective door design and technology requirement：Internal structure is net
The important level weld seam requirement full penetration such as the T connector of format, main gusset and front and back panel, door body allow for sustaining commercial big winged
Normal operation is also ensured after the shock of machine, welded shock resistance is required very high；Inside subject structure design
For grid type, 8 independent narrow enclosure spaces are separated by main gusset, welding job amount is very big, since component operating mode determines
Welding position is only horizontal position welding position and increases the difficulty of welding, T connector full penetration back side carbon arc air gouging back chipping (noisiness,
Dust, high-temperature metal steam, high temperature liquid iron splashing scald etc.) environment very severe, influence the health and person peace of operating personnel
Entirely.Door body appearance and size is 8 meters wide × 8 meters of height × 0.8 meter thickness, large-sized Welding Deformation of Steel Structure control is very harsh, therefore
Increase necessary tooling in inside configuration and control welding deformation, but it is narrower to cause operating space in this way so that ultra-large type is anti-
The operable space 720mm high of door is protected, 2~4 meters, 900~1000mm of channel width of length carries out T in enclosure space narrow in this way
The full penetration of type joint exempts from back chipping Lincoln weld horizontal position welding as a challenge.
Invention content
It is an object of the invention to overcome shortcoming and defect in the prior art, a kind of T connector full penetration is provided and is exempted from clearly
Root Lincoln weld horizontal position welding technique, can operate in narrow enclosure space, and weld seam realization in T connector full penetration horizontal position is made to exempt from
Back chipping automatic welding, and protect operating personnel's health, both ensure that welding quality, welding deformation also controlled range it
It is interior.
The present invention is achieved by the following technical solutions：
T connector full penetration exempts from back chipping Lincoln weld horizontal position welding technique, it is characterised in that includes the following steps：
S1：48.5 ° of the symmetrical groove of K-type, root face 1-2mm are processed on web；
S2：Along the thickness direction of the symmetrical groove of K-type, compartment of terrain carries out multiple tack welding slopes on the symmetrical groove of the K-type
Mouth is prefabricated, is highly less than the symmetrical groove 3mm of the K-type；
S3：Web and wing plate are assembled, it is horizontal position welding position to make T connector position while welding；
S4：Using manual arc soldering method by tack welding groove position carry out tack welding, welding current 110~
125A, 20~24V of weldingvoltage, 70~110mm/min of speed of welding；
S5：After the completion of positioning welding, the symmetrical groove of the K-type of web and wing plate is beaten using Lincoln weld horizontal position welding
Bottom, filling, capping.
Further, a tack welding groove, Mei Geding are set at interval of 300~600mm on the symmetrical groove of the K-type
Position weldering groove length is 100mm, and grinding low 3mm by the symmetrical groove of K-type is made, and the bevel angle of wherein one side is constant, by positive slope
It is mouthful isogonal to be set as the first groove, it is set as the second groove by underside groove is isogonal；Each tack welding groove
It is one kind in the first groove and the second groove, by the first groove, the second groove is interlaced is arranged in the symmetrical groove of the K-type
On.In such a way that this first groove and the second groove are staggered, stress when positioning welding can be made mutually to balance, protected
Demonstrate,prove fitted position.
Further, technological angle of the tack welding groove in step S2 on the symmetrical groove thickness direction of K-type is 30 °.
Further, the step S5 includes the following steps：
S51：The symmetrical groove front of K-type carries out backing welding；
S52：The symmetrical groove back side of K-type carries out backing welding；
S53：Second filling weldering is carried out on the symmetrical groove back side backing welding of K-type；
S54：Second filling weldering is carried out on the symmetrical groove front backing welding of K-type；
S55：The symmetrical groove front cosmetic welding of K-type；
S56：The symmetrical groove back side cosmetic welding of K-type.
Further, the step S51 is comprised the concrete steps that：Front backing welding uses Lincoln weld, welding wire and wing plate
30 ° of angle, and 40~50 ° of web angle, solder flux are paved with groove to be welded in advance, 500~550A of welding current, and weldingvoltage 26~
27V, speed of welding 350mm/min.
Further, the step S52 is comprised the concrete steps that：Back chipping is not direct using Lincoln weld at the backing welding back side
Weldering, 30 ° of welding wire and wing plate angle, and 40~50 ° of web angle, solder flux are paved with groove to be welded in advance, and welding current 500~
550A, 27~28V of weldingvoltage, speed of welding 350mm/min.
Further, the step S53 is comprised the concrete steps that：On the backing welding of the back side carry out second filling weldering, welding wire with
30 ° of wing plate angle, with 40~50 ° of web angle, solder flux is paved with groove to be welded, 570~580A of welding current, weldingvoltage in advance
28-29V, speed of welding 300-350mm/min.
Further, the step S54 is comprised the concrete steps that：On the backing welding of front carry out second filling weldering, welding wire with
30 ° of wing plate angle, with 40~50 ° of web angle, solder flux is paved with groove to be welded, welding current 570-580A, weldingvoltage in advance
28-29V, 300~350mm/min of speed of welding.
Further, the step S55 is comprised the concrete steps that：Front cap weld plays welding angle, welding wire using one layer of twice
With 65 ° of wing plate angle, with 40~50 ° of web angle, solder flux is paved with groove to be welded, 500~510A of welding current, welding electricity in advance
Press 29~30V, 360~380mm/min of speed of welding.
Further, the step S56 is comprised the concrete steps that：Back side cap weld plays welding angle, welding wire using one layer of twice
With 65~70 ° of wing plate angle, with 40~50 ° of web angle, solder flux is paved with groove to be welded, 500~510A of welding current, weldering in advance
Meet 29~30V of voltage, 360~380mm/min of speed of welding.
The beneficial effects of the invention are as follows：
(1) T connector full penetration of the invention is exempted from back chipping Lincoln weld horizontal position welding technique and is solved in narrow enclosure space
The problem of Lincoln weld horizontal position welding operating difficulties, eliminates the back chipping process in welding process, back side liner or sets off and its pacify
Dress technique, the use that carbon arc rods are omitted, reduce grinding disc, compared with traditional manual electric arc welding back chipping complete penetraction and fusion in welding technique originally
Method improves nearly 6 times of welding production efficiency；
(2) present invention is not necessarily to invest huge displacement equipment saving using Lincoln weld horizontal position welding in narrow enclosure space
Production cost replaces manual electric arc welding to reduce the labor of welding personnel in narrow enclosure space using Lincoln weld horizontal position welding
Fatigue resistance, while reducing the consumption of welding material and relative article, save time cost；
(3) the invention avoids back side carbon arc air gouging back chipping environmental pollutions in narrow enclosure space and high temperature liquid iron to scald wind
Danger, especially because the generation of lower noise and reduction pernicious gas, significantly improves the environment of production scene, realize to work
The protection of human body health；
(4) this invention ensures that the welding quality that complete penetraction and fusion in welding horizontal position welding is stitched in narrow enclosure space, while being national emphasis
Welding technique basis is established in the successful development of project " certain ultra-large type protective door ".
In order to better understand and implement, the present invention will be described in detail With reference to embodiment.
Description of the drawings
Fig. 1 is the surface view for the web that the present invention is provided with the symmetrical groove of K-type；
Fig. 2 is the A-A sectional views of Fig. 1；
Fig. 3 is the B-B sectional views of Fig. 1；
Fig. 4 is the welding wire and wing plate angle schematic diagram of the present invention；
Fig. 5 is enlarged diagram at the I of Fig. 4；
Wherein：1- webs, the symmetrical groove of 11-K types, the first grooves of 111-, the second grooves of 112-, 2- wing plates, 3- welding wires.
Specific implementation mode
With reference to embodiment, the present invention is described in further detail, and embodiments of the present invention are not limited thereto.
Embodiment 1
Using certain the ultra-large type protective door product just succeeded in developing as embodiment, ultra-large type protective door production mouth appearance and size is
8000mm wide × 8000mm high × 800mm is thick, plate thickness 25mm/40mm, material Q345B, in conjunction with attached drawing to the reality of this method
Apply further description.The present embodiment is implemented using following welding method on the basis of the product, it is therefore intended that
Be better understood from the content of this method, rather than the protection domain to present patent application restriction.Referring to Fig. 1~5, the present embodiment
It is as follows that T connector full penetration exempts from the operation of back chipping Lincoln weld horizontal position welding process：
S1：48.5 ° of the symmetrical groove 11 of K-type, root face 1-2mm are processed on web 1；
S2：Along the thickness direction of the symmetrical groove of K-type 11, positioned on the symmetrical groove of the K-type 11 at interval of 400mm
Weld that groove is prefabricated, and technological angle is 30 °, each tack welding groove length is 100mm, and low 3mm systems are ground by the symmetrical groove of K-type 11
At, the bevel angle of wherein one side is constant, by positive bevel angle it is constant be set as the first groove 111, by underside groove angle
It spends and constant is set as the second groove 112；Each tack welding groove is one kind in the first groove 111 and the second groove 112, is pressed
First groove 111, the second groove 112 be interlaced to be arranged on the symmetrical groove of the K-type 11；
S3：Web 1 and wing plate 2 are assembled, it is horizontal position welding position to make T connector position while welding；
S4：Tack welding, welding current 120A, welding are carried out by tack welding groove position using manual arc soldering method
Voltage 22V, speed of welding 100mm/min；
S5：After the completion of positioning welding, the symmetrical groove 11 of the K-type of web 1 and wing plate 2 is carried out using Lincoln weld horizontal position welding
Bottoming, filling, capping, specifically include following steps：
S51：The symmetrical groove front of K-type carries out backing welding：Using Lincoln weld, welding wire 3 and 30 ° of 1 angle of wing plate (figure
4), with 1 angle of web 40 ° (not shown), solder flux is paved with groove to be welded in advance, welding current 550A, weldingvoltage 26V, welding
Speed 350mm/min；
S52：The symmetrical groove back side of K-type carries out backing welding：Back chipping is not welded directly using Lincoln weld at the backing welding back side, weldering
Silk 3 and 2 angle of wing plate 30 ° (Fig. 4), with 1 angle of web 40 ° (not shown), solder flux is paved with groove to be welded, welding current in advance
550A, weldingvoltage 27V, speed of welding 350mm/min；
S53：Second filling weldering is carried out on the symmetrical groove back side backing welding of K-type：Welding wire 3 and 2 angle of wing plate 30 ° (Fig. 4),
With 1 angle of web 40 ° (not shown), solder flux is paved with groove to be welded, welding current 570A, weldingvoltage 28V, speed of welding in advance
300mm/min；
S54：Second filling weldering is carried out on the symmetrical groove front backing welding of K-type：Welding wire 3 and 2 angle of wing plate 30 ° (Fig. 4),
With 1 angle of web 40 ° (not shown), solder flux is paved with groove to be welded, welding current 570A, weldingvoltage 28V, speed of welding in advance
300mm/min；
S55：The symmetrical groove front cosmetic welding of K-type：Front cap weld plays welding angle, welding wire 3 and wing plate 2 using one layer of twice
Angle 65 ° (not shown), with 1 angle of web 40 ° (not shown), solder flux is paved with groove to be welded, welding current 500A, welding in advance
Voltage 29V, speed of welding 360mm/min；
S56：The symmetrical groove back side cosmetic welding of K-type：Back side cap weld plays welding angle, welding wire 3 and wing plate 2 using one layer of twice
Angle 65 ° (not shown), with 1 angle of web 40 ° (not shown), solder flux is paved with groove to be welded, welding current 500A, welding in advance
Voltage 29V, speed of welding 360mm/min.
Embodiment 2
It is as follows that a kind of T connector full penetration of the present embodiment exempts from the operation of back chipping Lincoln weld horizontal position welding process：
S1：48.5 ° of the symmetrical groove of K-type, root face 1-2mm are processed on web；
S2：Along the thickness direction of the symmetrical groove of K-type, multiple positioning are carried out on the symmetrical groove of the K-type at interval of 300mm
It is prefabricated to weld groove, is highly less than the symmetrical groove 3mm of the K-type, the wherein one side bevel angle of positioning welding groove is constant；
S3：Web and wing plate are assembled, it is horizontal position welding position to make T connector position while welding；
S4：Tack welding, welding current 110A, welding are carried out by tack welding groove position using manual arc soldering method
Voltage 20V, speed of welding 70mm/min；
S5：After the completion of positioning welding, the symmetrical groove of the K-type of web and wing plate is beaten using Lincoln weld horizontal position welding
Bottom, filling, capping.
Embodiment 3
It is as follows that the T connector full penetration of the present embodiment exempts from the operation of back chipping Lincoln weld horizontal position welding process：
S1：48.5 ° of the symmetrical groove of K-type, root face 1-2mm are processed on web；
S2：Along the thickness direction of the symmetrical groove of K-type, tack welding slope is carried out on the symmetrical groove of the K-type at interval of 600mm
Mouth is prefabricated, and each tack welding groove length is 100mm, and grinding low 3mm by the symmetrical groove of K-type is made, wherein the bevel angle of one side
It is constant, by positive bevel angle it is constant be set as the first groove, be set as the second groove by underside groove is isogonal；Often
A tack welding groove is one kind in the first groove and the second groove, and by the first groove, the second groove is interlaced is arranged in institute
It states on the symmetrical groove of K-type；
S3：Web and wing plate are assembled, it is horizontal position welding position to make T connector position while welding；
S4：Tack welding, welding current 125A, welding are carried out by tack welding groove position using manual arc soldering method
Voltage 24V, speed of welding 110mm/min；
S5：After the completion of positioning welding, the symmetrical groove of the K-type of web and wing plate is beaten using Lincoln weld horizontal position welding
Bottom, filling, capping, specifically include following steps：
S51：The symmetrical groove front of K-type carries out backing welding：Using Lincoln weld, 30 ° of welding wire and wing plate angle, with web
50 ° of angle, solder flux are paved with groove to be welded, welding current 500A, weldingvoltage 27V, speed of welding 350mm/min in advance；
S52：The symmetrical groove back side of K-type carries out backing welding：Back chipping is not welded directly using Lincoln weld at the backing welding back side, weldering
30 ° of silk and wing plate angle, and 50 ° of web angle, solder flux are paved with groove to be welded in advance, welding current 500A, weldingvoltage 28V,
Speed of welding 350mm/min；
S53：Second filling weldering is carried out on the symmetrical groove back side backing welding of K-type：30 ° of welding wire and wing plate angle, with web
50 ° of angle, solder flux are paved with groove to be welded, welding current 580A, weldingvoltage 29V, speed of welding 350mm/min in advance；
S54：Second filling weldering is carried out on the symmetrical groove front backing welding of K-type：30 ° of welding wire and wing plate angle, with web
50 ° of angle, solder flux are paved with groove to be welded, welding current 580A, weldingvoltage 29V, speed of welding 350mm/min in advance；
S55：The symmetrical groove front cosmetic welding of K-type：Front cap weld plays welding angle using one layer of twice, and welding wire is pressed from both sides with wing plate
70 ° of angle, with 50 ° of web angle, solder flux is paved with groove to be welded, welding current 510A, weldingvoltage 30V, speed of welding in advance
380mm/min；
S56：The symmetrical groove back side cosmetic welding of K-type：Back side cap weld plays welding angle using one layer of twice, and welding wire is pressed from both sides with wing plate
70 ° of angle, with 50 ° of web angle, solder flux is paved with groove to be welded, welding current 510A, weldingvoltage 30V, speed of welding in advance
380mm/min。
The invention is not limited in the above embodiments, if the various changes or deformation to the present invention do not depart from the present invention
Spirit and scope, if these changes and deformation belong within the scope of the claim and equivalent technologies of the present invention, then this hair
It is bright to be also intended to comprising these changes and deformation.
Claims (10)
1.T type joint full penetrations exempt from back chipping Lincoln weld horizontal position welding technique, it is characterised in that include the following steps：
S1：48.5 ° of the symmetrical groove of K-type, root face 1-2mm are processed on web；
S2：Along the thickness direction of the symmetrical groove of K-type, it is pre- that compartment of terrain carries out multiple tack welding grooves on the symmetrical groove of the K-type
System is highly less than the symmetrical groove 3mm of the K-type；
S3：Web and wing plate are assembled, it is horizontal position welding position to make T connector position while welding；
S4：Tack welding, 110~125A of welding current, weldering are carried out by tack welding groove position using manual arc soldering method
Meet 20~24V of voltage, 70~110mm/min of speed of welding；
S5：After the completion of positioning welding, bottoming is carried out to the symmetrical groove of the K-type of web and wing plate using Lincoln weld horizontal position welding, is filled out
It fills, capping.
2. T connector full penetration according to claim 1 exempts from back chipping Lincoln weld horizontal position welding technique, it is characterised in that：Often
A tack welding groove is arranged in 300~600mm of interval on the symmetrical groove of the K-type, and each tack welding groove length is
100mm grinds low 3mm by the symmetrical groove of K-type and is made, and the bevel angle of wherein one side is constant, sets positive bevel angle is constant
It is set to the first groove, is set as the second groove by underside groove is isogonal；Each tack welding groove is the first groove and the
One kind in two grooves, by the first groove, the second groove is interlaced is arranged on the symmetrical groove of the K-type.
3. T connector full penetration according to claim 1 exempts from back chipping Lincoln weld horizontal position welding technique, it is characterised in that：Step
Technological angle of the tack welding groove on the symmetrical groove thickness direction of K-type in rapid S2 is 30 °.
4. T connector full penetration according to claim 1 exempts from back chipping Lincoln weld horizontal position welding technique, it is characterised in that：Institute
Step S5 is stated to include the following steps：
S51：The symmetrical groove front of K-type carries out backing welding；
S52：The symmetrical groove back side of K-type carries out backing welding；
S53：Second filling weldering is carried out on the symmetrical groove back side backing welding of K-type；
S54：Second filling weldering is carried out on the symmetrical groove front backing welding of K-type；
S55：The symmetrical groove front cosmetic welding of K-type；
S56：The symmetrical groove back side cosmetic welding of K-type.
5. T connector full penetration according to claim 4 exempts from back chipping Lincoln weld horizontal position welding technique, it is characterised in that：Institute
State comprising the concrete steps that for step S51：Front backing welding uses 30 ° of Lincoln weld, welding wire and wing plate angle, with web angle 40
~50 °, solder flux is paved with groove to be welded, welding current 500-550A, 26~27V of weldingvoltage, speed of welding 350mm/ in advance
min。
6. T connector full penetration according to claim 1 exempts from back chipping Lincoln weld horizontal position welding technique, it is characterised in that：Institute
State comprising the concrete steps that for step S52：Back chipping is not welded directly using Lincoln weld at the backing welding back side, 30 ° of welding wire and wing plate angle,
With 40~50 ° of web angle, solder flux is paved with groove to be welded, welding current 500-550A, 27~28V of weldingvoltage, welding in advance
Speed 350mm/min.
7. T connector full penetration according to claim 1 exempts from back chipping Lincoln weld horizontal position welding technique, it is characterised in that：Institute
State comprising the concrete steps that for step S53：30 ° of second filling weldering, welding wire and wing plate angle are carried out on the backing welding of the back side, are pressed from both sides with web
40~50 ° of angle, solder flux are paved with groove to be welded, 570~580A of welding current, weldingvoltage 28-29V, speed of welding 300- in advance
350mm/min。
8. T connector full penetration according to claim 1 exempts from back chipping Lincoln weld horizontal position welding technique, it is characterised in that：Institute
State comprising the concrete steps that for step S54：30 ° of second filling weldering, welding wire and wing plate angle are carried out on the backing welding of front, are pressed from both sides with web
40~50 ° of angle, solder flux are paved with groove to be welded in advance, welding current 570-580A, weldingvoltage 28-29V, and speed of welding 300~
350mm/min。
9. T connector full penetration according to claim 1 exempts from back chipping Lincoln weld horizontal position welding technique, it is characterised in that：Institute
State comprising the concrete steps that for step S55：Front cap weld plays 65 ° of welding angle, welding wire and wing plate angle using one layer of twice, with web
40~50 ° of angle, solder flux are paved with groove to be welded, 500~510A of welding current, 29~30V of weldingvoltage, speed of welding in advance
360~380mm/min.
10. T connector full penetration according to claim 1 exempts from back chipping Lincoln weld horizontal position welding technique, it is characterised in that：Institute
State comprising the concrete steps that for step S56：Back side cap weld plays 65~70 ° of welding angle, welding wire and wing plate angle using one layer of twice, with
40~50 ° of web angle, solder flux are paved with groove to be welded, 500~510A of welding current, 29~30V of weldingvoltage, welding speed in advance
Spend 360~380mm/min.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810636134.0A CN108746948B (en) | 2018-06-20 | 2018-06-20 | Full penetration back chipping-free submerged automatic arc horizontal welding process for T-shaped joint |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810636134.0A CN108746948B (en) | 2018-06-20 | 2018-06-20 | Full penetration back chipping-free submerged automatic arc horizontal welding process for T-shaped joint |
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| CN108746948B CN108746948B (en) | 2020-06-19 |
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| CN112157334A (en) * | 2020-09-28 | 2021-01-01 | 江南造船(集团)有限责任公司 | Deep-melting submerged-arc automatic fillet welding method for large thick plate |
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|---|---|
| CN108746948B (en) | 2020-06-19 |
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