CN105345223B - A kind of automatic welding restorative procedure for anode steel claw head - Google Patents
A kind of automatic welding restorative procedure for anode steel claw head Download PDFInfo
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- CN105345223B CN105345223B CN201510867586.6A CN201510867586A CN105345223B CN 105345223 B CN105345223 B CN 105345223B CN 201510867586 A CN201510867586 A CN 201510867586A CN 105345223 B CN105345223 B CN 105345223B
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- welding
- claw head
- steel claw
- anode steel
- steel
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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
- B23K9/04—Welding for other purposes than joining, e.g. built-up welding
-
- 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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- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Arc Welding In General (AREA)
Abstract
The invention discloses a kind of automatic welding restorative procedure for anode steel claw head, the scaling loss section of steel pawl head is cut off first, cut surface accomplishes plane；One section and the anode steel claw head material and diameter identical round steel bar are chosen, facing is into plane；Choose and the same or like auxiliary pitman of steel pawl head material, and its coaxial rings is welded between steel pawl head cut surface and round steel plane rod end, annular built-up welding space is formed between steel pawl head and round steel bar；Whole annular built-up welding space is welded real using automatic annular horizontal position welding method, that is, completes the REPAIR WELDING of an anode steel claw head.The present invention, which is utilized, aids in pitman to form annular built-up welding space between steel pawl head cut surface and round steel plane rod end, annular built-up welding space is welded real using automatic annular horizontal position welding method, realize the automatic welding reparation of anode steel claw head, labor intensity is reduced, remediation efficiency is improved, welding point qualification rate is high, resistivity is low, power consumption is small, and intensity is high, reduces enterprise's production cost.
Description
Technical field
The present invention relates to heavy in section metal material automatic welding recovery technique, it is used for anode steel claw head more particularly, to one kind
Automatic welding restorative procedure.
Background technology
Anode steel claw is that Aluminum Electrolysis Production process uses more equipment part, because its long-time and electrolytic aluminium liquid connect
Touch, be easily corroded in high temperature, high current operating environment, so as to cause consumption big, repair task more heavy.It is long-term with
Come, reparation of the domestic aluminium electrolysis enterprise to anode steel claw uses manual arc soldering method, i.e., traditional weld all around method, but because of weldment slope
Mouthful processing and the limitation of welding procedure, not only efficiency is low for the welding method, and welding point small, the joint that there is bonding area
Low intensity, resistivity is big, the shortcomings of service life is short, therefore has a strong impact on and restrict control of the aluminium electrolysis enterprise to production cost
System.
Many defects of the traditional weld all around method used for anode steel claw head reparation, in recent years some mechanisms have developed founding
Technology, and have been put into and use.The principle of casting technology is to set in a crystallizer, crystallizer to put on steel pawl after dicing
Put one section of round steel bar, using founding soldering equipment, rod iron melted, using crystallizer by the molten steel of thawing with damage steel pawl first melt
Cast together, until reaching the height needed for steel pawl head.It is larger that this method solves weld all around connection resistance rate to a certain extent
The problem of, but welding equipment floor space is big, disposably puts into larger, and there is also certain potential safety hazard.
In view of the limitation of both the above method, has method of the mechanism using auxiliary connection sheet built-up welding, i.e., in cylinder recently
Two reciprocity semicircular body built-up welding supplement spaces are formed between shape rod iron and steel pawl head section, then respectively two built-up welding are supplemented
Space built-up welding weldering is real.The welding repair method is compared with weld all around method and casting technology, and welding point resistivity is able to greatly reduce,
But this method is low due to automaticity, welding efficiency is relatively low, while the residual stress of welding point is larger, weldment axiality
It is poor, it is yielding.
The content of the invention
Object of the present invention is to provide a kind of automatic welding restorative procedure for anode steel claw head, this method is realized
The automatic welding reparation at steel pawl head scaling loss position, greatly reduces labor intensity, improves remediation efficiency..
To achieve the above object, the present invention can take following technical proposals：
Automatic welding restorative procedure of the present invention for anode steel claw head is：
The first step, first by the scaling loss section excision completely of anode steel claw head to be repaired, cut surface accomplishes plane；According to steel
The design size of pawl head, chooses one section and the anode steel claw head material and diameter identical round steel bar, and facing is into plane；
Second step, chooses and anode steel claw head material to be repaired is same or like, 15 ~ 35mm of length, 4 ~ 10mm of diameter
Pitman is aided in, and by its boxing between the cut surface and round steel plane rod end of anode steel claw head, it is ensured that anode steel claw head, auxiliary
Pitman and round steel bar are coaxial, and annular built-up welding space is formed between anode steel claw head and round steel bar；
3rd step, welds real by whole annular built-up welding space using automatic annular horizontal position welding method, that is, completes an anode steel claw head
REPAIR WELDING.
The automatic annular horizontal position welding method is narrow gap monofilament or the weldering of mariages swinging arc or gas metal-arc welding, welding wire used
For flux-cored wire or solid core welding wire.
During diameter >=6mm of the auxiliary pitman, its two ends is circular cone structure, and its taper is 80 ~ 110 °, end circle
A diameter of 1 ~ the 3mm of platform, by its boxing between the cut surface and round steel plane rod end of anode steel claw head after, form band root face double unilateral
V-butt, 35~50 °C of its bevel angle, root face length is 1 ~ 3mm.
The advantage of the invention is that solving the restorative procedures such as traditional weld all around method, casting technology and auxiliary connection sheet welding method
Existing the drawbacks of, using the annular built-up welding space for aiding in pitman to be formed between steel pawl head cut surface and round steel plane rod end,
Annular built-up welding space is welded real using automatic annular horizontal position welding method, the automatic welding reparation of anode steel claw head is realized, substantially reduces
Labor intensity, improves repair efficiency, and the qualification rate of welding point is high（≥95%）, resistivity is low, power consumption
Small, intensity is high, extends the service life of anode steel claw head, reduces enterprise's production cost.
Brief description of the drawings
Fig. 1 is present invention welding schematic diagram.
Fig. 2 is the amplification assumption diagram of auxiliary pitman in Fig. 1.
Embodiment
More detailed description is done to the inventive method below by with reference to accompanying drawing.
As shown in figure 1, the automatic welding restorative procedure of the present invention for anode steel claw head is：
The first step, is first cut off the scaling loss section of anode steel claw first 1 to be repaired using gas cutting, and cut surface is repaiied completely
Into plane；According to the design size of steel pawl head, one section and the anode steel claw head material and diameter identical round steel bar 2, end are chosen
Facing is into plane；
Second step, chooses and first 1 material of anode steel claw to be repaired is same or like, 15 ~ 35mm of length, 4 ~ 10mm of diameter
Pitman 3 is aided in, and by its boxing between the cut surface and the end face of round steel bar 2 of anode steel claw first 1, it is ensured that anode steel claw first 1,
Aid in pitman 3 and round steel bar 2 coaxial, annular built-up welding space 4 is formed between anode steel claw first 1 and round steel bar 2；
If aid in the diameter ＜ 6mm of pitman 3, auxiliary pitman 3 is cylinder；When the diameter of auxiliary pitman 3
During >=6mm, its two ends is circular cone structure, and taper is 80 ~ 110 °, a diameter of 1 ~ 3mm of end round platform, as shown in Fig. 2 by its ring
After being welded between the cut surface of anode steel claw first 1 and the end face of round steel bar 2, annular built-up welding space 4 forms the double unilateral V-arrangement slopes of band root face
Mouthful, 35~50 °C of its bevel angle, root face length is 1 ~ 3mm；
3rd step, using narrow gap monofilament or the weldering of mariages swinging arc or gas metal-arc welding（Welding wire 5 uses flux-cored wire
Or solid core welding wire）Whole annular built-up welding space is welded real, that is, completes the REPAIR WELDING of an anode steel claw head；In welding process
In, using weldment（Anode steel claw first 1, auxiliary pitman 3 and round steel bar 2）Fixed, welding gun 6 is around the circular or semicircle side walked about
Method is welded.
For example, the anode steel claw A of the single four paws head of certain domestic electrolytic aluminium factory needs REPAIR WELDING, steel pawl head material is ZG230-
450, intended diameter is φ 180mm, and design length is 280mm.The first 1 scaling loss section gas cutting of steel pawl is cut off first, remaining segment length
For 110mm；The Q235 auxiliary connections of the thick round steel bars 2 of Q235 and a diameter of φ 8mm from a diameter of φ 180mm（Thin round steel）Rod
3, length is respectively 145mm and 25mm, and auxiliary is connected（Thin round steel）Circular cone structure is processed at the two ends of rod 3, and taper is
90 °, a diameter of 2mm of end round platform；In auxiliary connection（Thin round steel）Before the boxing solid welding of rod 3,1 cut surface first to steel pawl and thick round steel
The welding end surface of rod 2 polishing light, exposes metallic luster, then, places it on positioning fixture, auxiliary is connected（Thin round steel）
The coaxial boxing solid welding of rod 3 in first 1 cut surface of steel pawl and the welding end surface center of thick round steel bar 2, what the annular two ends of built-up welding space 4 were formed
Bevel angle is 45 °C；Using the weldering of narrow gap monofilament to the whole annular progress of built-up welding space 4 automatic ring horizontal position welding, and by whole ring
The weldering of shape built-up welding space is real, completes the REPAIR WELDING of a steel pawl head, in welding process, weldment is fixed, and the circle of welding gun 6 is walked about,
And the termination swinging arc of welding gun 6, welding wire 5 is flux-cored wire.
Failure test detection is carried out to the anode steel claw head after reparation, as a result shows that joint all realizes metallurgical binding, nothing
Crackle, it is mingled with and the defect such as incomplete fusion；Its pressure fall-off test result is 55 millivolts, substantially close to the milli of anode steel claw average pressure drop 50
Volt, meets its use requirement.
Claims (2)
1. a kind of automatic welding restorative procedure for anode steel claw head, it is characterised in that：
The first step, first by the scaling loss section excision completely of anode steel claw head to be repaired, cut surface accomplishes plane；According to steel pawl head
Design size, choose one section and the anode steel claw head material and diameter identical round steel bar, facing is into plane；
Second step, choose with anode steel claw head material to be repaired is same or like, 15~35mm of length, 4~10mm of diameter it is auxiliary
Pitman is helped, and by its boxing between the cut surface and round steel plane rod end of anode steel claw head, it is ensured that anode steel claw head, auxiliary connect
Take over the baton coaxial with round steel bar, annular built-up welding space is formed between anode steel claw head and round steel bar；It is described to aid in the straight of pitman
During footpath >=6mm, its two ends is circular cone structure, and its taper is 80 ~ 110 °, a diameter of 1~3mm of end round platform；Aid in pitman
Diameter ＜ 6mm when, auxiliary pitman be cylinder；
3rd step, welds real by whole annular built-up welding space using automatic annular horizontal position welding method, that is, completes the weldering of an anode steel claw head
Connect reparation.
2. the automatic welding restorative procedure according to claim 1 for anode steel claw head, it is characterised in that：It is described automatic
Annular horizontal position welding method is narrow gap monofilament or the weldering of mariages swinging arc or gas metal-arc welding, and welding wire used is flux-cored wire or real core
Welding wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510867586.6A CN105345223B (en) | 2015-12-02 | 2015-12-02 | A kind of automatic welding restorative procedure for anode steel claw head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510867586.6A CN105345223B (en) | 2015-12-02 | 2015-12-02 | A kind of automatic welding restorative procedure for anode steel claw head |
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| CN105345223A CN105345223A (en) | 2016-02-24 |
| CN105345223B true CN105345223B (en) | 2017-09-29 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108422196B (en) * | 2017-12-30 | 2023-08-18 | 贵阳铝镁设计研究院有限公司 | Automatic repairing unit for aluminum electrolysis anode steel claw and repairing method thereof |
| CN108326461B (en) * | 2018-03-02 | 2023-09-22 | 华北水利水电大学 | Brazing repair method for improving conductivity of anode steel claw |
| CN110777396A (en) * | 2018-07-31 | 2020-02-11 | 沈阳铝镁设计研究院有限公司 | Device for on-line detection and maintenance of anode steel claw and use method |
| CN112475556A (en) * | 2020-11-11 | 2021-03-12 | 鞍钢股份有限公司 | Composite blank assembly welding method adopting narrow-gap MAG transverse welding method |
| CN114985900A (en) * | 2022-06-16 | 2022-09-02 | 甘肃酒钢集团西部重工股份有限公司 | Welding process and appearance inspection method for 500KA electrolytic aluminum anode steel claw |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| GB0401529D0 (en) * | 2004-01-23 | 2004-02-25 | Rolls Royce Plc | Component joining |
| CN102534677A (en) * | 2012-01-04 | 2012-07-04 | 饶云福 | Device for repairing electrolytic aluminium anode steel claw by total cross-section fusion welding |
| CN103846564A (en) * | 2012-11-28 | 2014-06-11 | 沈阳铝镁设计研究院有限公司 | Repair method of anode guide rod steel claw for electrolytic aluminum |
| CN103317249B (en) * | 2013-07-15 | 2015-06-24 | 包头市中硕焊接科技有限公司 | Method for repairing anode steel stud |
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