CN109332855A - A kind of bipolar electrode welding operator's process of slab - Google Patents
A kind of bipolar electrode welding operator's process of slab Download PDFInfo
- Publication number
- CN109332855A CN109332855A CN201811332124.4A CN201811332124A CN109332855A CN 109332855 A CN109332855 A CN 109332855A CN 201811332124 A CN201811332124 A CN 201811332124A CN 109332855 A CN109332855 A CN 109332855A
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- Prior art keywords
- welding
- pole
- slab
- bipolar electrode
- wire
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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
- B23K9/16—Arc welding or cutting making use of shielding gas
- B23K9/167—Arc welding or cutting making use of shielding gas and of a non-consumable electrode
- B23K9/1675—Arc welding or cutting making use of shielding gas and of a non-consumable electrode making use of several 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
- B23K9/235—Preliminary treatment
-
- 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
- B23K9/32—Accessories
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Arc Welding In General (AREA)
Abstract
The invention discloses a kind of bipolar electrode welding operator's process of slab, and two electrodes are mutually indepedent, and current polarity is exchange, are referred to as the pole L, the pole T before and after opsition dependent；The pole L gage of wire 4.8mm, 0 °~5 ° of welding gun forward leaning angle, 800~1800A of welding current, 38~48V of weldingvoltage；The pole T gage of wire 6.4mm, 0 °~15 ° of welding gun hypsokinesis angle, 800~1300A of welding current, 35~45V of weldingvoltage；Two 30~50mm of electrode gap, 35~60mm/min of speed of welding；Weld uses X-type groove, 85 ° -100 ° of bevel angle, stays root long degree 28mmmm, fit-up gap maximum 1mm.The present invention realizes the automation splice joint of slab, reduces the labor intensity and production cost of weld job, improves production efficiency, and internal check, mechanical performance inspection, the physicochemical property inspection of weld seam are all satisfied ship's classification code requirement.
Description
Technical field
The present invention relates to electrode welding technical field, bipolar electrode welding operator's process of specially a kind of slab.
Background technique
Welding, also referred to as welding, Rong connects, and is a kind of jointing metal in a manner of heating, high temperature or high pressure or other heat
The manufacturing process and technology of plastic material such as plastics.The purpose of engagement: melting welding is reached in welding by following three approach --- adds
The workpiece that heat is intended to engage is allowed to be partially melting to form molten bath, just engages after the cooled and solidified of molten bath, can be added that molten to fill out object auxiliary when necessary
It helps, it is the welding processing for being suitble to various metals and alloy, is not required to pressure；Pressure welding --- welding process must butt-welding fitting application pressure
Power belongs to the processing of various metal materials and part metals material；Soldering --- it is done using metal material more low-melting than base material
Solder soaks base material using liquid solder, fills play movement, and diffuse into one another realization with base material and link weldment.It is suitable for each
The welding processing of kind material, is also suitable for the welding processing of different metal or foreign peoples's material.
There are many kinds of the energy sources of modern times welding, including gas flame, electric arc, laser, electron beam, friction and ultrasonic wave
Deng.Other than use in the factory, welding can also carry out in a variety of contexts, such as field, underwater and space.No matter at what
Place, welding all may bring danger to operator, so must take safeguard procedures appropriate when being welded.It welds to people
The injury that body may cause includes burn, electric shock, inpairment of vision, sucking toxic gas, ultraviolet light overexposure etc..
In shipbuilding, stick electrode is welded or semi-automatic CO2 is welded for take conventional for the welding of slab, and institute is right
The welding road number for the welding groove answered, the number of plies increase with the increase of plate thickness, and the labor intensity of weld job is higher, is built into
This also rises.In addition, the difference of welder's manual welding itself operation level is difficult to be protected the quality of weld seam, and weld
Operating efficiency is extremely low.
Summary of the invention
The purpose of the present invention is to provide a kind of bipolar electrode welding operator's process of slab, to solve above-mentioned background technique
The problem of middle proposition.
To achieve the above object, the invention provides the following technical scheme: a kind of bipolar electrode welding operator's process of slab,
Two electrodes are mutually indepedent, and current polarity is exchange, are referred to as the pole L, the pole T, the pole L gage of wire before and after opsition dependent
4.8mm, 0 °~5 ° of welding gun forward leaning angle；The pole the T gage of wire 6.4mm, 0 °~15 ° of welding gun hypsokinesis angle.
Preferably, X-type groove is used when welding, 85 ° -100 ° of bevel angle, stays root long degree 28mm, fit-up gap is maximum
1mm。
Preferably, welding step is as follows:
A, the foreign matter in groove is cleared up；
B, anchor point is taken to be welded and fixed in groove center；
C, front welding, the leading starting the arc of the pole L welding wire on run-on tab, while trolley starts to walk, when the pole T, rows of electrodes is gone to
The starting the arc when initial position of the pole L, the blow-out on receiving arc plate after the completion of welding；
D, reverse side is welded after turn, is not necessarily to back chipping, step is the same as step C；
E, welding slag is finally removed, weld appearance is checked, need to be repaired Ru defective.
Preferably, the pole L, the pole T 30~50mm of electrode gap, 35~60mm/min of speed of welding.
Preferably, 800~1800A of the pole the L welding wire welding current, 38~48V of the pole the T welding wire weldingvoltage；Welding
800~1300A of electric current, 35~45V of weldingvoltage.
Compared with prior art, the beneficial effects of the present invention are:
(1) present invention realizes the automation splice joint of slab, reduces the labor intensity of weld job and is produced into
This, improves production efficiency, and internal check, mechanical performance inspection, the physicochemical property inspection of weld seam are all satisfied ship's classification specification and want
It asks；With without preheating, heat input is high, and welding by both sides realizes the automatic welding operation of slab without the advantages that back chipping.It reaches
The discharge of reduction toxic gas has been arrived, the labor intensity of weld job has been reduced, reduces the purpose of production cost, meet " greening shipbuilding "
Theory.
(2) automatic welding of the present invention greatly reduces the labor intensity of operator, shortens weld interval, if using CO2
Welding, then it is many to weld number, the number of plies, causes weld interval very long, and labor intensity is high；Automatic welding quality stability of the present invention
Height, the defects of being not susceptible to stomata, slag inclusion, incomplete fusion, burn-through；In addition, post welding distortion is easy to control, although being solded into heat automatically
Height, but welding by both sides interval time is shorter, and post welding distortion is not likely to produce.
Detailed description of the invention
Fig. 1 is welding sequence schematic diagram of the present invention；
Fig. 2 is the double absolute electrode arrangement schematic diagrams of the present invention；
Fig. 3 is steel plate of the present invention assembly and groove size schematic diagram.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1-3 is please referred to, the present invention provides a kind of technical solution: a kind of bipolar electrode welding operator's process of slab, two
A electrode is mutually indepedent, and current polarity is exchange, is referred to as the pole L, the pole T, the pole L gage of wire before and after opsition dependent
4.8mm, 0 °~5 ° of welding gun forward leaning angle, 800~1800A of welding current, 38~48V of weldingvoltage；The pole T gage of wire
6.4mm, 0 °~15 ° of welding gun hypsokinesis angle, 800~1300A of welding current, 35~45V of weldingvoltage can effectively increase molten
It is deep, guarantee complete penetraction and fusion in welding and good appearance of weld effect；The pole L, the pole T 30~50mm of electrode gap, trolley walking once can be complete
It is welded at twice, improves welding efficiency, 35~60mm/min of speed of welding；It is big to enter heat, base material, which need to have, enters greatly thermal weld
Performance, environment temperature, to guarantee property of welded joint, need to prevent brittle crack at 0 DEG C or more when welding；It is adopted when welding
With X-type groove, 85 ° -100 ° of bevel angle, root long degree 28mm, fit-up gap maximum 1mm are stayed.
In the present invention, a kind of bipolar electrode welding operator's process of slab, welding step is as follows:
A, the foreign matter in groove is cleared up；
B, anchor point is taken to be welded and fixed in groove center；
C, front welding, the leading starting the arc of the pole L welding wire on run-on tab, while trolley starts to walk, when the pole T, rows of electrodes is gone to
The starting the arc when initial position of the pole L, the blow-out on receiving arc plate after the completion of welding；
D, reverse side is welded after turn, is not necessarily to back chipping, step is the same as step C；
E, welding slag is finally removed, weld appearance is checked, need to be repaired Ru defective.
In the present invention, 70mm slab welding process parameter:
Qualification of welding procedure:
Procedure qualification is completed under the field surveillance of ship's classification marine surveyor, compares ship's classification code requirement, and test result is all satisfied
It is required that.
The present invention realizes the automation splice joint of slab, reduces the labor intensity and production cost of weld job,
Production efficiency is improved, and internal check, mechanical performance inspection, the physicochemical property inspection of weld seam are all satisfied ship's classification code requirement；
With without preheating, heat input is high, and welding by both sides realizes the automatic welding operation of slab without the advantages that back chipping.Reach
Toxic gas discharge is reduced, the labor intensity of weld job is reduced, reduces the purpose of production cost, meet the reason of " greening shipbuilding "
It reads；Automatic welding of the present invention greatly reduces the labor intensity of operator, shortens weld interval, if using CO2Welding, then weld
It is many to connect number, the number of plies, causes weld interval very long, labor intensity is high；Automatic welding quality stability of the present invention is high, is not easy to send out
The defects of angry hole, slag inclusion, incomplete fusion, burn-through；In addition, post welding distortion is easy to control, and although solder-down heat is high automatically, welding by both sides
Interval time is shorter, and post welding distortion is not likely to produce.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (5)
1. a kind of bipolar electrode welding operator's process of slab, it is characterised in that: two electrodes are mutually indepedent, and current polarity is
Exchange, is referred to as the pole L, the pole T before and after opsition dependent, the pole the L gage of wire 4.8mm, and 0 °~5 ° of welding gun forward leaning angle；The T
Pole gage of wire 6.4mm, 0 °~15 ° of welding gun hypsokinesis angle.
2. a kind of bipolar electrode welding operator's process of slab according to claim 1, it is characterised in that: used when welding
X-type groove, stays root long degree 28mm by 85 °~100 ° of bevel angle, and fit-up gap is less than or equal to 1mm.
3. a kind of bipolar electrode welding operator's process of slab according to claim 1, which is characterized in that specific welding step
It is rapid as follows:
A, the foreign matter in groove is cleared up；
B, anchor point is taken to be welded and fixed in groove center；
C, front welding, the leading starting the arc of the pole L welding wire on run-on tab, while trolley starts to walk, when the pole T, rows of electrodes goes to the pole L
Starting the arc when initial position, the blow-out on receiving arc plate after the completion of welding；
D, reverse side is welded after turn, is not necessarily to back chipping, step is the same as step C；
E, welding slag is finally removed, weld appearance is checked, need to be repaired Ru defective.
4. a kind of bipolar electrode welding operator's process of slab according to claim 1, it is characterised in that: the pole L, T
Pole 30~50mm of electrode gap, 35~60mm/min of speed of welding.
5. a kind of bipolar electrode welding operator's process of slab according to claim 1, it is characterised in that: the pole the L weldering
Silk 800~1800A of welding current, 38~48V of the pole the T welding wire weldingvoltage；800~1300A of welding current, weldingvoltage 35
~45V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811332124.4A CN109332855A (en) | 2018-11-09 | 2018-11-09 | A kind of bipolar electrode welding operator's process of slab |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811332124.4A CN109332855A (en) | 2018-11-09 | 2018-11-09 | A kind of bipolar electrode welding operator's process of slab |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109332855A true CN109332855A (en) | 2019-02-15 |
Family
ID=65312986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811332124.4A Pending CN109332855A (en) | 2018-11-09 | 2018-11-09 | A kind of bipolar electrode welding operator's process of slab |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3748429A (en) * | 1971-03-15 | 1973-07-24 | Kawasaki Steel Co | Multiple-wire single-pass submerged-arc welding method for thick plates |
| JPS57165173A (en) * | 1981-03-31 | 1982-10-12 | Sumitomo Metal Ind Ltd | Gas shielded arc welding method |
| JPS61115682A (en) * | 1984-11-09 | 1986-06-03 | Kawasaki Steel Corp | Two-electrode submerged arc welding |
| JPH03234369A (en) * | 1990-02-08 | 1991-10-18 | Kawasaki Steel Corp | Formation of projecting bead by submerged arc welding |
| CN101733527A (en) * | 2010-01-27 | 2010-06-16 | 天顺风能(苏州)股份有限公司 | Wind tower double-arc double-wire submerged arc welding technology |
| CN104785908A (en) * | 2015-04-10 | 2015-07-22 | 上海中远川崎重工钢结构有限公司 | Welding methods for weathering resistant steel Q355NHD |
| CN107052539A (en) * | 2017-02-16 | 2017-08-18 | 山东奥太电气有限公司 | A kind of cut deal mariages twin arc submerged arc welding technique for exempting from back chipping |
| CN107813036A (en) * | 2016-09-13 | 2018-03-20 | 张盘 | A kind of two-sided single track buried arc welding method of cut deal mariages |
-
2018
- 2018-11-09 CN CN201811332124.4A patent/CN109332855A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3748429A (en) * | 1971-03-15 | 1973-07-24 | Kawasaki Steel Co | Multiple-wire single-pass submerged-arc welding method for thick plates |
| JPS57165173A (en) * | 1981-03-31 | 1982-10-12 | Sumitomo Metal Ind Ltd | Gas shielded arc welding method |
| JPS61115682A (en) * | 1984-11-09 | 1986-06-03 | Kawasaki Steel Corp | Two-electrode submerged arc welding |
| JPH03234369A (en) * | 1990-02-08 | 1991-10-18 | Kawasaki Steel Corp | Formation of projecting bead by submerged arc welding |
| CN101733527A (en) * | 2010-01-27 | 2010-06-16 | 天顺风能(苏州)股份有限公司 | Wind tower double-arc double-wire submerged arc welding technology |
| CN104785908A (en) * | 2015-04-10 | 2015-07-22 | 上海中远川崎重工钢结构有限公司 | Welding methods for weathering resistant steel Q355NHD |
| CN107813036A (en) * | 2016-09-13 | 2018-03-20 | 张盘 | A kind of two-sided single track buried arc welding method of cut deal mariages |
| CN107052539A (en) * | 2017-02-16 | 2017-08-18 | 山东奥太电气有限公司 | A kind of cut deal mariages twin arc submerged arc welding technique for exempting from back chipping |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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Application publication date: 20190215 |
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| RJ01 | Rejection of invention patent application after publication |