EP0217900A1 - Method and welding electrode for making a welding seam - Google Patents
Method and welding electrode for making a welding seamInfo
- Publication number
- EP0217900A1 EP0217900A1 EP19860902411 EP86902411A EP0217900A1 EP 0217900 A1 EP0217900 A1 EP 0217900A1 EP 19860902411 EP19860902411 EP 19860902411 EP 86902411 A EP86902411 A EP 86902411A EP 0217900 A1 EP0217900 A1 EP 0217900A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- welding
- medium
- core
- flow
- electrode
- 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.)
- Withdrawn
Links
- 238000003466 welding Methods 0.000 title claims abstract description 78
- 238000000034 method Methods 0.000 title claims abstract description 17
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 claims description 2
- 229910052753 mercury Inorganic materials 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 230000001276 controlling effect Effects 0.000 claims 3
- 239000011159 matrix material Substances 0.000 claims 1
- 239000011324 bead Substances 0.000 abstract 1
- 108091006146 Channels Proteins 0.000 description 11
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 239000011244 liquid electrolyte Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
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
- B23K9/14—Arc welding or cutting making use of insulated electrodes
- B23K9/142—Drag welding, the arc length being determined by an insulated layer between the welding electrode and the welding spot or seam
- B23K9/145—Drag welding, the arc length being determined by an insulated layer between the welding electrode and the welding spot or seam the insulated welding electrode being laid along the seam
-
- 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
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/02—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
- B23K35/0255—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape for use in welding
- B23K35/0261—Rods, electrodes, wires
Definitions
- the invention relates to a method in compliance with the introductory section of the claim 1 and to a 5 welding element in compliance with the introductory sec ⁇ tion of the claim 7 for making- a welding seam by a longitudinally to the welding object placed elongated welding electrode.
- The- advantages of the invention include that higher professional skills are not necessarily required for the welder to make successfully a welding seam, that welding is rapid and that by using the welding method and electrode according to the invention time-consuming changes of the welding rod are avoided. Moreover it must be stated, that the welding trace made according to the invention is absolutely smooth and does not in ⁇ clude any slag closures, edge cuts etc. deteriorating the weld.
- the welding electrode according to the invention comprises a core bar 5 coated on its side placed against the welding object by coating 6 and melting as the welding proceeds.
- the coated core bar can be replaced by a so-called core filling bar with the advantage of better bending qualities.
- the conically tapering cross section shown in the figure suits particularly well for welding of so-called U-seams or for example sheets with a bevelled groove at their edges to their place e.g. as cover plates.
- the mentioned conical form is not, however, essential for the purpose of the invention, but also other sectional profiles can be used in the welding electrode depending on the welding adaptation and the desired seam.
- the welding current is conveyed to the welding electrode through a conductive, preferably liquid medium, which is drawn hydraulically regulated along the weldin elect- rode to promote the welding process.
- a conductive, preferably liquid medium which is drawn hydraulically regulated along the weldin elect- rode to promote the welding process.
- a medium liquid ⁇ . mercury can be used with good electrical conductivity, as is generally known.
- Naturally also other conductive electrolytes can be used without negative influences to 5 the action of the invention.
- the welding electrode according to the in ⁇ vention includes in this exemplary case a tubular flow channel element 3, which can be at its both or at least
- the flow channel element 3 is connected to a con-
- the conductive portion is composed of a strip made of metal, preferably cop ⁇ per, and extending as wide as the welding electrode to
- the other portion of the flow channel element 3 is made of a suitable, e.g. plastic-based flexible
- the conductive portion 4 can be made of a thin and
- the welding electrode can be stored f.ex. in rolls and a proper piece of it can be cut for each object of use.
- the welding current is conveyed to the electrode by a liquid electrolyte.
- the electrolyte is connected to the positive pole of the electric source and the welding object to the negative pole.
- a flow limiting member 2 which goes with the medium flow tightly pressed against the walls defining the flow channel 1 before or after the medium depending mostly on the fact, whether the medium is drawn by suction or pumping.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Arc Welding In General (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI851467A FI72066C (fi) | 1985-04-12 | 1985-04-12 | Foerfarande och svetsningselement foer framstaellning av en svetsfog. |
| FI851467 | 1985-04-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP0217900A1 true EP0217900A1 (en) | 1987-04-15 |
Family
ID=8520666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19860902411 Withdrawn EP0217900A1 (en) | 1985-04-12 | 1986-04-10 | Method and welding electrode for making a welding seam |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP0217900A1 (enrdf_load_stackoverflow) |
| AU (1) | AU5813886A (enrdf_load_stackoverflow) |
| DE (1) | DE3690185T1 (enrdf_load_stackoverflow) |
| FI (1) | FI72066C (enrdf_load_stackoverflow) |
| GB (1) | GB2185205A (enrdf_load_stackoverflow) |
| WO (1) | WO1986006015A1 (enrdf_load_stackoverflow) |
-
1985
- 1985-04-12 FI FI851467A patent/FI72066C/fi not_active IP Right Cessation
-
1986
- 1986-04-10 EP EP19860902411 patent/EP0217900A1/en not_active Withdrawn
- 1986-04-10 GB GB08629757A patent/GB2185205A/en not_active Withdrawn
- 1986-04-10 DE DE19863690185 patent/DE3690185T1/de not_active Withdrawn
- 1986-04-10 AU AU58138/86A patent/AU5813886A/en not_active Abandoned
- 1986-04-10 WO PCT/FI1986/000038 patent/WO1986006015A1/en active Application Filing
Non-Patent Citations (1)
| Title |
|---|
| See references of WO8606015A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| FI851467A0 (fi) | 1985-04-12 |
| AU5813886A (en) | 1986-11-05 |
| DE3690185T1 (enrdf_load_stackoverflow) | 1987-05-14 |
| GB8629757D0 (en) | 1987-01-21 |
| FI851467L (fi) | 1986-10-13 |
| FI72066C (fi) | 1987-04-13 |
| GB2185205A (en) | 1987-07-15 |
| FI72066B (fi) | 1986-12-31 |
| WO1986006015A1 (en) | 1986-10-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): BE FR IT |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 19870313 |