CN108080772A - A kind of assembled arc-welding method - Google Patents
A kind of assembled arc-welding method Download PDFInfo
- Publication number
- CN108080772A CN108080772A CN201711361336.0A CN201711361336A CN108080772A CN 108080772 A CN108080772 A CN 108080772A CN 201711361336 A CN201711361336 A CN 201711361336A CN 108080772 A CN108080772 A CN 108080772A
- Authority
- CN
- China
- Prior art keywords
- welding
- weld seam
- welded
- arc
- weld
- 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
- B23K9/02—Seam welding; Backing means; Inserts
- B23K9/025—Seam welding; Backing means; Inserts for rectilinear seams
-
- 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
Abstract
The present invention proposes a kind of assembled arc-welding method, and used welding rod is special-shaped welding rod, and the welding rod cross-sectional shape is approximate with regional space cross section to be welded.Wlding is laid at weld groove during welding, without mobile welding head, soldering turret.Wlding melts along groove and forms weld seam automatically after the starting the arc, welding process nonconducting characteristic when unfused using electrode coating.For the present invention woth no need to operating space, work efficiency is high, and reduces requirement of the welding operation for worker's qualification.The scope of application and application field of the invention for greatly having expanded arc welding, to solve the problems, such as in some cases because welding insufficient space can not welding.
Description
Technical field
The present invention relates to welding manufacture industries, are specifically that a kind of welding wire or welding rod need not be performed relative motion with workpiece weld seam
Arc welding method.Compared with conventional arc is welded, operating space needed for the assembled arc welding (referred to as assembling weldering) is small, can pass
System arc-welding method is welded in the case of can not being welded because operating space is limited.
Technical background
Electric arc welding is using heat caused by electric arc electric discharge that workpiece and packing material (or without packing material) is mutual
It melts and forms weld seam after condensation, so as to obtain the welding process of secured connector.Current arc welding either manual welding is also
It is automatic arc welding, the contact of welding rod (or welding wire) is required for constantly to move and hold along welding groove direction in the welding process
The metal in continuous fusion welding region.Therefore just need to leave enough soldering turrets in " top " of weld seam or the operation of welding gun movement is empty
Between.Experienced welding operating personnel need to consider the influence of operating space, reasonable arrangement position while welding.
The content of the invention
To solve the problems, such as that welding operating space in the prior art is insufficient, the present invention proposes a kind of assembled electricity
Arc welding procedure.
The present invention detailed process be：
Step 1, foot welding height is determined.Definite foot welding height is 6mm.The cross section of weld seam is calculated according to isosceles triangle
Product.
Step 2, special-shaped welding rod is manufactured.
It is approximate isosceles triangle to carry out crimp to core wire in core wire drawing process, and makes the angle of two straight flanges
It is consistent with region angle to be welded.
The cross-sectional area of the core wire must be approximate with cross-sectional area needed for weld seam.
The coating thickness of core wire outer surface extrusion is 0.8mm.
Step 3：The surface treatment of weldment.
Clear up the greasy dirt and rusty stain on steel plate place surface to be welded.
Step 4：Welding preparation.
By two blocks of steel plates by the vertical surface for fixing the 3rd block of steel plate of spot welding, composition shape is in the to be welded of " π " shape
Workpiece；It is welding region between the described two pieces vertical adjacent surfaces of steel plate；The vertical steel plate of described two blocks and horizontal steel plate
Junction is weld seam.
In the weld seam that to-be-welded region determines to weld first, labeled as the first weld seam.Make to-be-welded region opening upwards simultaneously
The one end of workpiece away from the weld seam is padded, make the angle that shape is at 45 ° between workpiece and horizontal plane.Welding rod is embedded in and treats welding zone
On the weld line of the first weld seam in domain, compressed using using the pressing plate of insulating materials, and it is clamping fixed with G words, make welding rod with treating
The groove face of welding workpiece is close to.
Step 5, the first weld seam is welded.
Two blocks of steel plates with the anode of welding terminal are connected respectively, the cathode of welding rod and welding terminal is connected.It adjusts
Current is 170~200A.
The end of steel plate and welding rod is scraped using metallic conductor, is removed at once to realize the short-circuit starting the arc, after the starting the arc described
Metallic conductor.Electric arc burns along welding rod, and welding rod is made constantly to be melted with the first weld line surrounding metal.
After welding rod all burnt, welding machine is closed, removes pressing plate and G words folder.Complete the welding to first weld seam.
Step 6, the second weld seam is welded.
Second weld seam be located at region to be welded in and with the corresponding another weld seam of first weld seam.Welding
During second weld seam, reverse welding part, and the first weld seam of workpiece one end is padded, make shape between workpiece and horizontal plane at 45 °
Angle.The process of the first weld seam is welded in repetition step 5, completes the welding of the second weld seam.
Step 7, other weld seams outside region to be welded are welded.
The process of the second weld seam is welded in repetition step 6, completes the welding of other weld seams outside region to be welded.
The present invention can be welded in the case of with smaller operating space, solve two pieces erect steel plates between
Weld seam is subject to adjacent riser to interfere and can not carry out the deficiency of welding.
Welding rod used in the present invention is special-shaped welding rod, and the welding rod cross-sectional shape and regional space cross section to be welded are near
Seemingly.The invention welding process mainly using electrode coating when unfused nonconducting characteristic.
Before present invention welding, base material progress spot welding is fixed.The welding rod of appropriate length is produced, which should be greater than welding
Stitch length.Welding rod is embedded in to-be-welded region, is tiled and is fixed, pressing plate compression can be used in fixing means, makes welding rod tight
Base material surface is pasted, the insulating materials such as plank can be used in pressing plate.After base material, welding rod are fixed, make its connect welding machine respectively two
Pole powers on.During welding, using the core and base material of conductor short circuit welding rod one end, the short-circuit starting the arc is caused.After the starting the arc, electric arc
Surrounding coating melts, and electric arc will burn along welding rod, constantly melts base material and welding rod at groove, and continuous weldering is formed after cooling
Seam.After welding rod all burnt, frock is removed, knocks out visible continuous secured weld seam after welding slag.
In the present invention, since covering of an electrode has insulating properties when unfused, electric arc is only in the core wire and base material of exposing
Between burn, the heat of electric arc constantly melts coating, constantly exposes new core wire, and electric arc is caused to be bonded along welding rod with base material
Direction sustained combustion so that molten bath is constantly moved along groove, continuous weld seam is obtained after condensation.
Description of the drawings
Fig. 1 is the structure diagram of weldment, and wherein 1a is front view, and 1b is the top view of 1a.
Fig. 2 is welding rod cross-sectional view of the structure, and wherein 2a is front view, and 2b is the viewgraph of cross-section of 2a.
Fig. 3 is the schematic diagram of welding method.
In figure：1. weld seam；2. steel plate；3. coating；4. core wire；5. pressing plate；6. special-shaped welding rod.
Specific embodiment
The present embodiment is a kind of assembled arc-welding method.
The present embodiment is exemplified by welding three pieces of block length 300mm, width 300mm, thickness as the Q235 steel plates of 6mm.By two risers
The welding process between one block of level board.The special-shaped welding rod used is welded, composition is consistent with J422 welding rods, and cross-sectional shape is
Approximate isosceles triangle.Welding machine is dc welding machine.
The detailed process of the present embodiment is：
Step 1, foot welding height is determined.Definite foot welding height is 6mm.The transversal of weld seam 1 is calculated according to isosceles triangle
Area.
Step 2, special-shaped welding rod is manufactured.The method of the special-shaped welding rod of manufacture is approximate with producing common J422 welding rods, different
Part is, carries out crimp to diameter 5mm core wires using conventional method in 4 drawing process of core wire, makes the core wire transversal
Face becomes the approximate isosceles triangle being made of two straight flanges and a circular arc line, the angle of two straight flange angles and region to be welded
Angle is consistent.The cross-sectional area of the core wire must be approximate with cross-sectional area needed for weld seam.In the present embodiment, the welding rod core wire is horizontal
Sectional area is 18mm2.Using the core wire 4 as the filling metal of weld seam.
By bead thread peeling；Shearing length is 350mm.
By special-shaped extrusion die by coating powder extrusion on core wire.The thickness of coating 3 is 0.8mm.Place is dried
Special-shaped welding rod 6 is obtained after reason.
Step 3：The surface treatment of weldment.Clear up the greasy dirt and rusty stain on steel plate place surface to be welded.
Step 4：Welding preparation.By two blocks of steel plates by the vertical surface for fixing the 3rd block of steel plate of spot welding, shape is formed
In the workpiece to be welded of " π " shape；It is welding region between the described two pieces vertical adjacent surfaces of steel plate；Two blocks of vertical steel
The junction of plate and horizontal steel plate is weld seam.
In the weld seam that to-be-welded region determines to weld first, labeled as the first weld seam.Make to-be-welded region opening upwards simultaneously
The one end of workpiece away from the weld seam is padded, make the angle that shape is at 45 ° between workpiece and horizontal plane.Welding rod is embedded in and treats welding zone
On the weld line of the first weld seam in domain, compressed using pressing plate 5, and it is clamping fixed with G words, make the groove of welding rod and workpiece to be welded
It is close on surface.
The pressing plate uses insulating materials.
Step 5, the first weld seam is welded.Two blocks of steel plates are connected respectively with the anode of welding terminal, by welding rod and welding machine
The cathode connection of output terminal.Adjusting electric current is 170~200A.
According to a conventional method.The end of steel plate and welding rod is scraped using metallic conductor, to realize the short-circuit starting the arc, after the starting the arc at once
Remove the metallic conductor.Electric arc burns along welding rod, and welding rod is made constantly to be melted with the first weld line surrounding metal.
After welding rod all burnt, welding machine is closed, removes pressing plate and G words folder.Complete the welding to first weld seam.
Step 6, the second weld seam is welded.Second weld seam be located at region to be welded in and with the first weld seam phase
Corresponding another weld seam.When welding second weld seam, reverse welding part, and the first weld seam of workpiece one end is padded, make workpiece
The shape angle at 45 ° between horizontal plane.The process of the first weld seam is welded in repetition step 5, completes the welding of the second weld seam.
Step 7, other weld seams outside region to be welded are welded.The process of the second weld seam is welded in repetition step 6, is completed to be welded
The welding of other weld seams outside region.
Abnormity welding rod used in the present invention changes traditional welding rod circular cross section, increases weld seam filling amount of metal,
So that weld deposit height of the present invention meets welding requirements.Welding rod is laid at weld groove during welding, without making welding
Head, soldering turret etc. are relatively moved with base material, compared to the operating space that conventional arc weldering only needs very little.Welding rod is automatic after the starting the arc
It is melted along groove and forms weld seam, personnel's operation is not required in weld seam forming process, so that the present invention has automation journey
The characteristics of degree height and high work efficiency, effectively reduces requirement of the welding operation for worker's qualification.
Claims (5)
1. a kind of assembled arc-welding method, which is characterized in that detailed process is：
Step 1, foot welding height is determined；
Step 2, special-shaped welding rod is manufactured；
Step 3：The surface treatment of weldment；Clear up the greasy dirt and rusty stain on steel plate place surface to be welded；
Step 4：Welding preparation；By two blocks of steel plates by the vertical surface for fixing the 3rd block of steel plate of spot welding, composition shape is in " π "
The workpiece to be welded of shape；It is welding region between the described two pieces vertical adjacent surfaces of steel plate；The vertical steel plate of described two blocks with
The junction of horizontal steel plate is weld seam；
In the weld seam that to-be-welded region determines to weld first, labeled as the first weld seam；Make to-be-welded region opening upwards and by work
The one end of part away from the weld seam is padded, makes the angle that shape is at 45 ° between workpiece and horizontal plane；Welding rod is embedded in region to be welded
The first weld seam weld line on, compressed using using the pressing plate of insulating materials, it is and clamping fixed with G words, make welding rod with it is to be welded
The groove face of workpiece is close to；
Step 5, the first weld seam is welded；Two blocks of steel plates with the anode of welding terminal are connected respectively, welding rod and welding machine are exported
The cathode connection at end；Adjusting electric current is 170~200A；
The end of steel plate and welding rod is scraped using metallic conductor, removes the metal at once to realize the short-circuit starting the arc, after the starting the arc
Conductor；Electric arc burns along welding rod, and welding rod is made constantly to be melted with the first weld line surrounding metal；
After welding rod all burnt, welding machine is closed, removes pressing plate and G words folder；Complete the welding to first weld seam；
Step 6, the second weld seam is welded；Second weld seam is in region to be welded and corresponding with first weld seam
Another weld seam；When welding second weld seam, reverse welding part, and the first weld seam of workpiece one end is padded, make workpiece and water
Shape angle at 45 ° between plane；The process of the first weld seam is welded in repetition step 5, completes the welding of the second weld seam；
Step 7, other weld seams outside region to be welded are welded；The process of the second weld seam is welded in repetition step 6, completes region to be welded
The welding of outer other weld seams.
2. assembled arc-welding method as described in claim 1, which is characterized in that definite foot welding height is 6mm；According to etc.
Lumbar triangle shape calculates the cross-sectional area of weld seam.
3. assembled arc-welding method as described in claim 1, which is characterized in that carried out in core wire drawing process to core wire
Crimp is approximate isosceles triangle, and makes the angle of two straight flanges consistent with region angle to be welded.
4. assembled arc-welding method as described in claim 1, which is characterized in that the cross-sectional area palpus and weld seam of the core wire
Required cross-sectional area is approximate.
5. assembled arc-welding method as described in claim 1, which is characterized in that the coating thickness of core wire outer surface extrusion is
0.8mm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711361336.0A CN108080772A (en) | 2017-12-18 | 2017-12-18 | A kind of assembled arc-welding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711361336.0A CN108080772A (en) | 2017-12-18 | 2017-12-18 | A kind of assembled arc-welding method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108080772A true CN108080772A (en) | 2018-05-29 |
Family
ID=62175845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711361336.0A Pending CN108080772A (en) | 2017-12-18 | 2017-12-18 | A kind of assembled arc-welding method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108080772A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113356270A (en) * | 2021-07-01 | 2021-09-07 | 中船黄埔文冲船舶有限公司 | Side wall block construction method of steel shell pipe joint and steel shell immersed tube construction method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3594542A (en) * | 1969-07-11 | 1971-07-20 | Sumikin Welding Electrode Co | Continuous lay down arc welding method |
| JPS5189849A (en) * | 1975-02-05 | 1976-08-06 | JIDOYOSETSUHONYORU JIDOYOSETSUHO | |
| CN101537523A (en) * | 2009-04-22 | 2009-09-23 | 杨继新 | Method of automatic welding of manual arc welding machine |
| CN101722376A (en) * | 2008-10-13 | 2010-06-09 | 刘保全 | Electric welding rod capable of adapting to a plurality of specifications of welds |
| CN103962685A (en) * | 2014-04-28 | 2014-08-06 | 天津大学 | Underwater welding rod semi-dry-type overhead welding method |
-
2017
- 2017-12-18 CN CN201711361336.0A patent/CN108080772A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3594542A (en) * | 1969-07-11 | 1971-07-20 | Sumikin Welding Electrode Co | Continuous lay down arc welding method |
| JPS5189849A (en) * | 1975-02-05 | 1976-08-06 | JIDOYOSETSUHONYORU JIDOYOSETSUHO | |
| CN101722376A (en) * | 2008-10-13 | 2010-06-09 | 刘保全 | Electric welding rod capable of adapting to a plurality of specifications of welds |
| CN101537523A (en) * | 2009-04-22 | 2009-09-23 | 杨继新 | Method of automatic welding of manual arc welding machine |
| CN103962685A (en) * | 2014-04-28 | 2014-08-06 | 天津大学 | Underwater welding rod semi-dry-type overhead welding method |
Non-Patent Citations (1)
| Title |
|---|
| 万晓慧等: "钛合金小空间曲线焊缝自动化焊接工艺及性能", 《航空制造技术》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113356270A (en) * | 2021-07-01 | 2021-09-07 | 中船黄埔文冲船舶有限公司 | Side wall block construction method of steel shell pipe joint and steel shell immersed tube construction method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107999916B (en) | A kind of compound silk filling melt-brazing method of the double light beam laser-TIG of dissimilar material | |
| US9289842B2 (en) | Structure and method of bonding copper and aluminum | |
| CN104002004B (en) | A kind of thick sheet metal large area docking method for welding | |
| CN106825874B (en) | A kind of submerged-arc welding single face welding and double face shaping technique | |
| CN205464747U (en) | Single power mariages submerged arc welding welder | |
| CN107803593B (en) | high-frequency-laser wire filling composite welding device and method | |
| CN106238848B (en) | Non-contact type heating tin brazing method for metal structural part and PCB | |
| CN107570900A (en) | A kind of hf electric arc complex welding method | |
| CN101700595A (en) | Method of babbitt metal melting pole inert gas protection arc braze welding | |
| CN107570874A (en) | Laser-arc hybrid welding process | |
| CN102581424A (en) | Welding method for copper wire and aluminum wire | |
| CN108080772A (en) | A kind of assembled arc-welding method | |
| CN106238846B (en) | Non-contact heating tin brazing method for metal structural part and coaxial cable | |
| CN105710488A (en) | Welding process | |
| CN107538095B (en) | Induction brazing equipment and copper pipe rapid induction brazing process method | |
| RU2374054C1 (en) | Method for welding of flat panels with header pipe | |
| CN109175675B (en) | Steel rail three-wire melting nozzle electroslag welding device | |
| CN107775166B (en) | Welding assembly for resistance welding machine and resistance welding machine | |
| CN112518067A (en) | Welding mechanism of junction box welding machine | |
| CN201455568U (en) | Fire clay thermowelding die device | |
| CN203887390U (en) | Laser filling welding machine | |
| KR200389523Y1 (en) | Nut position fixing pin for spot welding machine | |
| CN101003107A (en) | Welding method of mixing fragmental welding wire with iron powder | |
| CN104613304A (en) | Aluminum alloy guide rail and welding method thereof | |
| CN104400195A (en) | Tungsten electrode gas shielded welding method and application thereof |
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 | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180529 |