CN106881519A - A kind of inside and outside panel welding method of closed guard gate's door leaf - Google Patents
A kind of inside and outside panel welding method of closed guard gate's door leaf Download PDFInfo
- Publication number
- CN106881519A CN106881519A CN201710243289.3A CN201710243289A CN106881519A CN 106881519 A CN106881519 A CN 106881519A CN 201710243289 A CN201710243289 A CN 201710243289A CN 106881519 A CN106881519 A CN 106881519A
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- China
- Prior art keywords
- welding
- mother metal
- door leaf
- outside panel
- guard gate
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Classifications
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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
- B23K9/186—Submerged-arc welding making use of a consumable electrodes
-
- 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
- B23K9/12—Automatic feeding or moving of electrodes or work for spot or seam 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
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Arc Welding In General (AREA)
Abstract
A kind of inside and outside panel welding method of closed guard gate's door leaf, including operation：1) oxide layer of mother metal joint is removed；2) solder flux is filled up in the flux bath of jig；3) mother metal no less than two pieces is clamped, is close to the docking port between mother metal, gap is not more than 1mm, and two pieces of center lines of the docking port alignment flux bath of mother metal；4) joint of mother metal is welded and fixed firmly；5) mother metal is overturn, using step 3) and step 4) method reverse side is welded, the polylith mother metal that is welded forms wainscot and/or outer panels；6) wainscot and outer panels respectively with two opposite face welding fabrications of skeleton.The present invention saves technological process, time-consuming and equipment cost, but quality and is still up to state standards；Need not be padded using the refractory ceramics of high price；Using the method for two-sided welding, weldquality is improve；The inside and outside panel of steel construction people's air defense door leaf is solved the problems, such as because of the welding of reverse interface and caused by door leaf deformation.
Description
Technical field
The present invention relates to welding procedure, more particularly to a kind of inside and outside panel welding method of closed guard gate's door leaf.
Background technology
People's air defense airtight blast door has strict seal requirement, for resisting poison outside shock wave and shielding protection area
Gas.The welding of steel construction people's air defense safeguard is in process of production an important key link, only resolves these passes
Key link, makes these products best in quality be arranged in civil air defense constructions and installations, and it can just play the due protection of wartime safeguard
Sealing function.
The production technology of steel construction closed guard gate's door leaf is at present：First assembly is welded skeleton and then is welded with inside and outside panel group
Shaping.Because the inside and outside panel area of people's air defense door leaf is larger, the steel plate width needed for usual inside and outside panel not enough needs docking,
The panel docking method of 5~12mm is the reserved 2mm gaps welding of bevel or interface, the manual welding commonly used during docking or is buried
Arc welding technique easily causes door leaf deformation, and weld seam has the major defects such as slag inclusion, stomata, crackle.
The content of the invention
It is an object of the invention to propose a kind of inside and outside panel welding method of closed guard gate's door leaf, reduction weld seam is set folder occur
The phenomenons such as slag, stomata, crackle, burn-through, deformation, improve weldquality, while improving efficiency, reduces cost.
It is that, up to this purpose, the present invention uses following technical scheme：
A kind of inside and outside panel welding method of closed guard gate's door leaf, including following operation：
Step 1) remove mother metal joint oxide layer；
Step 2) fill up solder flux in the flux bath of jig；
Step 3) mother metal for being no less than two pieces is clamped, it is close to the docking port between the mother metal, gap is not more than
1mm, and two pieces of center lines of the docking port alignment flux bath of the mother metal；
Step 4) joint of the mother metal is welded and fixed firmly；
Step 5) by the mother metal upset, using step 3) and step 4) method reverse side is welded, be welded
Polylith mother metal forms wainscot and/or outer panels；
Step 6) wainscot and the outer panels respectively with two opposite face welding fabrications of the skeleton.
Preferably, the step 5) and step 6) between also include step：The wainscot and the outer panels are by weldering
After being connected into type, aligning is carried out to the wainscot and the outer panels using flat plate straightener smooth.
Preferably, step 1) the middle oxide layer for removing mother metal joint within edge 100mm.
Preferably, step 4) in welding manner for segmentation spot welding.
Preferably, step 6) welding manner be submerged-arc welding.
Preferably, the output current of the welding machine of submerged-arc welding be 380~620A, voltage be 30~36V, speed of welding be 20~
28m/h。
The beneficial effects of the present invention are：
1st, bevelled technological process is needed before eliminating the welding of 5~12mm steel plates, time and equipment cost is saved；
2nd, submerged-arc welding need not be padded using refractory ceramics, save the expensive raw materials expense of purchase refractory ceramics pad；
3rd, using the method for two-sided welding, solve inconel weld and the phenomenons such as slag inclusion, stomata, crackle, burn-through easily occur,
Improve weldquality；
4th, solve the inside and outside panel of steel construction people's air defense door leaf because of the welding of reverse interface and caused by door leaf deformation；
5th, the flux bath of jig makes soldered more consolidate；
6th, operation is eliminated, II grade of standard of GB/T11345-2013 can be still reached.
Brief description of the drawings
Fig. 1 is the schematic diagram of the door skin welding that the present invention is provided；
Fig. 2 is door leaf skeleton of the present invention, the schematic diagram of panel group weldering.
Wherein：Mother metal 1, wainscot 2, outer panels 3, skeleton 4, panel docking weld seam 41, welding wire 501, solder flux 502, striking
Plate 503, breath arc plate 504, wire feeder 505, flux hopper 506, flexible pipe 507, the source of welding current 508, ignition tip 509, melting gold
Category 510, jig 6, flux bath 61.
Specific embodiment
Further illustrate technical scheme below in conjunction with the accompanying drawings and by specific embodiment.
A kind of inside and outside panel welding method of closed guard gate's door leaf, including following operation：
Step 1) remove the joint of mother metal 1 oxide layer；
Step 2) fill up solder flux 502 in the flux bath 61 of jig 6；
Step 3) mother metal 1 for being no less than two pieces is clamped, it is close to the docking port between the mother metal 1, gap is little
In 1mm, and two pieces of center lines of the docking port alignment flux bath 61 of the mother metal 1；
Step 4) joint of the mother metal 1 is welded and fixed firmly；
Step 5) mother metal 1 is overturn, using step 3) method reverse side is welded, the polylith mother metal being welded
1 forms wainscot 2 and/or outer panels 3；
Step 6) wainscot 2 and the outer panels 3 respectively with two opposite face welding fabrications of the skeleton 4.
Because the inside and outside panel area of closed guard gate's door leaf is larger, and steel plate width needed for inside and outside panel not enough, it is necessary to
Docking, conventional manual welding or welding technique of submerged arc welding easily causes door leaf deformation, and weld seam has slag inclusion, stomata, splits
The major defects such as line.The application is closely welded plurality of steel plates mother metal 1, after being welded by using the mode of double-submerged arc
Wainscot 2 and outer panels 3 are formed, by both welding fabrications on two opposite faces of skeleton 4 respectively, complete closed guard gate is formed
Door leaf.Double-submerged arc solves inconel weld and the phenomenons such as slag inclusion, stomata, crackle, burn-through easily occurs, improves weld seam matter
Amount.
Furthermore, it is contemplated that in welding process, easily causing masterbatch 1 described in burn through because electric current is excessive, so that masterbatch 1
Bonded together by welding wire 501 with the jig 6, be unfavorable for the transfer of masterbatch 1, therefore in step 2) in, use band
There is the jig of flux bath 61, solder flux 502 fills up flux bath 61, then even if masterbatch 1 is genuine breakdown, also can be enough
Solder flux 502 fills up leak.
Preferably, the step 5) and step 6) between also include step：The wainscot 2 and the outer panels 3 pass through
After welding fabrication, aligning is carried out to the wainscot 2 and the outer panels 3 using flat plate straightener smooth.
The electric current of welding machine is very big, and after steel plate splicing, the wainscot 2 and outer panels 3 occur flexural deformation, are right
Inside and outside panel aligning is smooth, it is necessary to eliminate their its residue stress by 9 rollers to the flat plate straightener of 11 rollers.
Specifically welding process is：
(1) welding preparation
The cleaning of a, mother metal 1：Before welding, it is necessary to which corrosion, greasy dirt, moisture, the oxide skin on the joint surface of mother metal 1 etc. is clear
Except clean；Method has manual removal (such as wire brush, pneumatic grinding wheel), mechanical removal (such as shot-peening)；
B, the cleaning of welding wire 501 and the drying of solder flux 502：Before welding, it is necessary to by the greasy dirt on the surface of welding wire 501, iron rust etc.
Dirt removal is clean；To prevent hydrogen from invading weld seam, solder flux 502 must immediately be used after strict drying, and requirement drying；
The assembling of c, weldment：When weldment is assembled, it is necessary to assure gap uniformity, height is smooth；When vertical masonry joint weldment is assembled, still
Run-on tab 503 and breath arc plate 504 need to be added, to remove the defect easily produced in striking and ending, such as arc crater；
The placement of d, weldment：The docking port of mother metal 1 will be directed at the center line of the flux bath 61 of jig 6.
(2) key points for operation：
The main points of a, striking and receipts arc；The skill of welding condition is adjusted flexibly；The manipulation of submerged arc welding machine, flat butt welding
Operative skill；
B, gage of wire 3.5mm；
C, run-on tab 503 and the preferably low alloy steel plate of breath arc plate 504；
(3) operating procedure before striking
Whether a, inspection welding machine external cabling are correct；
B, adjustment orbital position, welding tractor is put in orbit；
C, welding wire 501 is coiled on wire feeder 505, then solder flux 502 in flux hopper 506, will be logical
Flexible pipe 507 is crossed to flow on weld seam；
D, the connection source of welding current 508 and control cabinet power supply (not shown)；
E, adjustment welding wire 501 position, make its alignment Weld pipe mill；Adjustment ignition tip 509 make electrode extension for 4~
7mm。
(4) weld
Using inert gas-shielded arc welding, weld seam control is not more than 1mm, and welding current, weldingvoltage and speed are according to table 1
Technological requirement is set.As shown in figure 1, motlten metal 510 is uniformly covered on weld seam.
Preferably, step 1) the middle oxide layer for removing the joint of mother metal 1 within edge 100mm.
The presence of oxide layer can influence the effect of welding, cause it slag inclusion, stomata and crackle easily occur, it is therefore desirable to
It is using angle grinder that the oxide layer and dirt removal of the joint of steel mother metal 1 is clean before mother metal 1 splices.
Preferably, step 4) in welding manner for segmentation spot welding.
Be to reduce welding deformation, weld seam be divided into some sections, continuous heat input is once welded to reduce, reduce stress so as to
Reduce the probability of deformation and crackle.
Preferably, step 6) welding manner be submerged-arc welding.
To improve welding productivity, make welding quality stable, reduce flue dust, can be achieved the goal from submerged-arc welding.This is
A kind of electric arc burns the method welded under welding flux layer.
Preferably, the output current of the welding machine of submerged-arc welding be 380~620A, voltage be 30~36V, speed of welding be 20~
28m/h。
In the application, in the case that submerged-arc welding machine stays seam in square groove, not, welding parameter is as shown in table 1 below：
The submerged arc welding machine welding parameter of table 1 (square groove does not stay seam)
Wainscot 2 and outer panels 3 are welded by polylith mother metal 1, and panel docking weld seam 41 is as shown in Fig. 2 will weld
Inside and outside panel be connected with skeleton 4 welding fabrication when, panel can because there is warpage in the reason for being heated, in the inside and outside face of sealing
, it is necessary to make its change smooth using 9 rollers to the flat plate straightener of 11 rollers before plate, its residue stress is eliminated.
Above content is only presently preferred embodiments of the present invention, for one of ordinary skill in the art, according to of the invention
Thought, will change in specific embodiments and applications, and this specification content should not be construed as to the present invention
Limitation.
Claims (6)
1. the inside and outside panel welding method of a kind of closed guard gate's door leaf, it is characterised in that including following operation：
Step 1) remove mother metal joint oxide layer；
Step 2) fill up solder flux in the flux bath of jig；
Step 3) mother metal for being no less than two pieces is clamped, it is close to the docking port between the mother metal, gap is not more than 1mm,
And two pieces of center lines of the docking port alignment flux bath of the mother metal；
Step 4) joint of the mother metal is welded and fixed firmly；
Step 5) by the mother metal upset, using step 3) and step 4) method reverse side is welded, the polylith being welded
Mother metal forms wainscot and/or outer panels；
Step 6) wainscot and the outer panels respectively with two opposite face welding fabrications of the skeleton.
2. the inside and outside panel welding method of closed guard gate's door leaf as claimed in claim 1, it is characterised in that the step 5) and step
It is rapid 6) between also include step：The wainscot and the outer panels by after welding fabrication, using flat plate straightener to described
It is smooth that wainscot and the outer panels carry out aligning.
3. the inside and outside panel welding method of closed guard gate's door leaf as claimed in claim 1, it is characterised in that：Step 1) middle removing mother
Oxide layer of the material joint within edge 100mm.
4. the inside and outside panel welding method of closed guard gate's door leaf as claimed in claim 1, it is characterised in that：Step 4) in welding
Mode is segmentation spot welding.
5. the inside and outside panel welding method of closed guard gate's door leaf as claimed in claim 1, it is characterised in that：Step 6) welding side
Formula is submerged-arc welding.
6. the inside and outside panel welding method of closed guard gate's door leaf as claimed in claim 5, it is characterised in that：The welding machine of submerged-arc welding
Output current is 380~620A, and voltage is 30~36V, and speed of welding is 20~28m/h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710243289.3A CN106881519A (en) | 2017-04-14 | 2017-04-14 | A kind of inside and outside panel welding method of closed guard gate's door leaf |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710243289.3A CN106881519A (en) | 2017-04-14 | 2017-04-14 | A kind of inside and outside panel welding method of closed guard gate's door leaf |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106881519A true CN106881519A (en) | 2017-06-23 |
Family
ID=59183404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710243289.3A Pending CN106881519A (en) | 2017-04-14 | 2017-04-14 | A kind of inside and outside panel welding method of closed guard gate's door leaf |
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| Country | Link |
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| CN (1) | CN106881519A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113909787A (en) * | 2021-11-29 | 2022-01-11 | 常州华东人防设备有限公司 | Steel structure civil air defense door framework tailor-welding tool and application method thereof |
Citations (6)
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|---|---|---|---|---|
| JPS59206170A (en) * | 1983-05-06 | 1984-11-21 | Kawasaki Steel Corp | High speed submerged arc welding method |
| JP2000263284A (en) * | 1999-03-18 | 2000-09-26 | Nippon Steel Corp | One-side welding method for steel for low-temperature use |
| CN103737162A (en) * | 2013-12-20 | 2014-04-23 | 南车长江车辆有限公司 | Compound welding method |
| CN104002030A (en) * | 2014-06-10 | 2014-08-27 | 中铁宝桥（扬州）有限公司 | Butt joint method for super-thick steel plates |
| CN104002029A (en) * | 2014-06-06 | 2014-08-27 | 东北大学 | Improved submerged-arc plate butt welding method |
| CN106334860A (en) * | 2015-07-17 | 2017-01-18 | 烟台中集来福士海洋工程有限公司 | Welding technique for F690-grade steel plate |
-
2017
- 2017-04-14 CN CN201710243289.3A patent/CN106881519A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59206170A (en) * | 1983-05-06 | 1984-11-21 | Kawasaki Steel Corp | High speed submerged arc welding method |
| JP2000263284A (en) * | 1999-03-18 | 2000-09-26 | Nippon Steel Corp | One-side welding method for steel for low-temperature use |
| CN103737162A (en) * | 2013-12-20 | 2014-04-23 | 南车长江车辆有限公司 | Compound welding method |
| CN104002029A (en) * | 2014-06-06 | 2014-08-27 | 东北大学 | Improved submerged-arc plate butt welding method |
| CN104002030A (en) * | 2014-06-10 | 2014-08-27 | 中铁宝桥（扬州）有限公司 | Butt joint method for super-thick steel plates |
| CN106334860A (en) * | 2015-07-17 | 2017-01-18 | 烟台中集来福士海洋工程有限公司 | Welding technique for F690-grade steel plate |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113909787A (en) * | 2021-11-29 | 2022-01-11 | 常州华东人防设备有限公司 | Steel structure civil air defense door framework tailor-welding tool and application method thereof |
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Application publication date: 20170623 |