CN110280869A - A kind of solar energy steel plate plated film cavity welding technique - Google Patents
A kind of solar energy steel plate plated film cavity welding technique Download PDFInfo
- Publication number
- CN110280869A CN110280869A CN201910574022.1A CN201910574022A CN110280869A CN 110280869 A CN110280869 A CN 110280869A CN 201910574022 A CN201910574022 A CN 201910574022A CN 110280869 A CN110280869 A CN 110280869A
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- welding
- cavity
- solar energy
- plated film
- steel plate
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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
- B23K9/02—Seam welding; Backing means; Inserts
-
- 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
- B23K9/095—Monitoring or automatic control of welding parameters
-
- 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
Abstract
The present invention relates to a kind of solar energy steel plate plated film cavity welding techniques, it is characterised in that: uses gas tungsten arc welding, used welding wire is ER308L, gage of wire:Electric power polarity: straight polarity direct current；Welding process technological parameter are as follows: 180~260A of welding current, 14~22V of weldingvoltage, 100~150mm/min of speed of welding；Tungsten electrode: lanthanum tungsten electrode, tungsten electrode diameter:
Description
Technical field:
The present invention relates to the welding technique in solar energy film equipment manufacture industry, specially a kind of solar energy steel plate plates membrane cavity
Body welding procedure, the welding of the solar energy steel plate plated film cavity suitable for 00Cr18Ni9 stainless steel material.
Background technique:
Solar energy steel plate plated film cavity, solar panels plated film cavity in solar energy film equipment manufacture industry relate in this equipment
And cavity, volume is big, and quantity is more, wherein guaranteeing the weld strength and leakproofness of cavity, controls cavity welding deformation amount and weldering
Structural stability afterwards is the difficult point of its technology.The characteristics of for its structure and technological difficulties pass through the welding slope of Optimization Framework
Mouthful, reasonable arrangement welding sequence and guarantee that frame eliminates the tension type of workpiece in the precision of group clock synchronization, postwelding, formulate science,
Reasonable welding procedure is particularly important.
Summary of the invention:
The object of the present invention is to provide a kind of solar energy steel plate plated film cavity welding technique, with general welding equipment,
By adjusting welding condition, welding groove form is rationally designed by the good control of welding deformation and selects suitable postwelding
Destressing mode obtains the accuracy guarantee of good welding effect and workpiece, solves the sealing of solar energy steel plate plated film cavity welding
Property and the high problem of required precision.
To achieve the purpose of the present invention the technical solution adopted is that:
A kind of solar energy steel plate plated film cavity welding technique, it is characterised in that: use gas tungsten arc welding, adopted
It is ER308L, gage of wire: φ 3.2mm, electric power polarity: straight polarity direct current with welding wire；Welding process technological parameter are as follows: welding current
180~260A, 14~22V of weldingvoltage, 100~150mm/min of speed of welding；Tungsten electrode: lanthanum tungsten electrode, tungsten electrode diameter: φ
2.4mm；Protective gas: high-purity Ar, 99.999%；Gas shield flow: 10~20L/min；Interlayer temperature < 120 DEG C.
By weight percentage, the chemical component of ER308L welding wire is as follows: C:0.03%, Si:0.60%, Mn:1.8%,
Ni:10.0%, Cr:20.0%, S:0.008%, P:0.015%.
Welding process is required in strict accordance with technique, the specific steps are as follows:
(1) it before welding, is handled as follows: carrying out cleaning by degreasing with the alkaline solution that concentration is 10%NaOH, remove surface
Oxide skin, it is rear with stainless steel brush cleaning weldment groove and away from the dirt within the scope of the two sides 30~50mm of groove two sides；It is used before weldering
Isopropyl acetone wiped clean；Guarantee that soldering part appearance cannot have any rusty stain, greasy dirt, pollutant；
(2) in welding process: the starting the arc uses run-on tab, in welding process, if cracked, or the defects of folder depressed place,
Stop immediately, removes defect with file, it is ensured that welding bead is eliminated extremely, then proceedes to weld；Interlayer temperature is tight in welding process
Lattice control generates intercrystalline corrosion hereinafter, preventing from overheating at 120 DEG C, influences weld strength；Long weld seam uses skip welding, reduces thermal collecting
In cause biggish welding deformation, in entire welding process, all weld seam symmetrical weldings；During welding cavity, first welding is outer
Portion's discontinuous welding, plays the role of rivet welding, rear to weld internal sequential welding, plays the role of sealing；
(3) after welding treatment: when welding ending, arc crater is filled up, welding protection gas is closed after postponing 20s；It is split when there is arc crater
When line, crackle is removed, is welded again, guarantee the welding quality at arc crater, avoided generating delayed crack, influence leakproofness；Weldering
Dehydrogenation is carried out using oscillating aging afterwards and eliminates welding stress processing, the oscillating aging time is 30min~40min.
The invention has the advantages and beneficial effects that:
1. the present invention controls welding deformation, forms quality weld by rationally designing welding groove, adjustment welding sequence,
By rationally designing postwelding destressing treatment process, welding stress is effectively removed, guarantees product size stability and dimensional accuracy.
2. present invention optimization welding parameter, is exported using lesser heat input, improves speed of welding, reduced and generated by welding
Heat, with achieve the effect that reduce welding deformation.
3. the present invention is adjusted by welding procedure sequence, welding-school shape-welding-school shape-welding-oscillating aging destressing,
By weld industry within tolerance interval, to complete Large Enclosure welding, and guarantee sealing requirements.
Detailed description of the invention
Fig. 1 is cavity main body cover plate schematic diagram.
Fig. 2 is cavity main body side plate water channel schematic diagram.
Fig. 3 is cavity main body schematic diagram.
Fig. 4 is solar energy steel plate plated film cavity schematic diagram.
Specific embodiment
The present invention is described in more detail by 1-4 with reference to the accompanying drawing, and the application of welding procedure of the present invention is equipment manufacturing
The welding of leakproofness cavity provides reference value in field, using traditional welding procedure, realizes the complete of low-cost high-efficiency
At the welding of high precision part, large-size stainless steel cavity welding principle is proposed, gives the large-scale slab stainless steel of removal
The heat treatment method of welding stress.
A kind of solar energy steel plate plated film cavity welding technique, using gas tungsten arc welding, institute is using welding wire
ER308L, gage of wire:Electric power polarity: straight polarity direct current；Welding process technological parameter are as follows: welding current 180~
260A, 14~22V of weldingvoltage, 100~150mm/min of speed of welding；Tungsten electrode: lanthanum tungsten electrode (%1.5EWLa-1.5)；Tungsten electrode is straight
Diameter:Protective gas: high-purity Ar, 99.999%；Gas shield flow: 10~20L/min；Interlayer temperature < 120 DEG C.
By weight percentage, the chemical component of ER308L welding wire is as follows: C:0.03%, Si:0.60%, Mn:1.8%,
Ni:10.0%, Cr:20.0%, S:0.008%, P:0.015%.
Welding process is required in strict accordance with technique, the specific steps are as follows:
(1) it before welding, is handled as follows: carrying out cleaning by degreasing with the alkaline solution that concentration is 10%NaOH, remove surface
Oxide skin, it is rear with stainless steel brush cleaning weldment groove and away from the dirt within the scope of the two sides 30~50mm of groove two sides；It is used before weldering
Isopropyl acetone wiped clean；Guarantee that soldering part appearance cannot have any rusty stain, greasy dirt, pollutant；
(2) in welding process: the starting the arc uses run-on tab, in welding process, if cracked, or the defects of folder depressed place,
Stop immediately, removes defect with file, it is ensured that welding bead is eliminated extremely, then proceedes to weld；Interlayer temperature is tight in welding process
Lattice control generates intercrystalline corrosion hereinafter, preventing from overheating at 120 DEG C, influences weld strength；Long weld seam uses skip welding, reduces thermal collecting
In cause biggish welding deformation, in entire welding process, all weld seam symmetrical weldings；During welding cavity, first welding is outer
Portion's discontinuous welding, plays the role of rivet welding, rear to weld internal sequential welding, plays the role of sealing；
(3) after welding treatment: when welding ending, arc crater is filled up, welding protection gas is closed after postponing 20s；It is split when there is arc crater
When line, crackle is removed, is welded again, guarantee the welding quality at arc crater, avoided generating delayed crack, influence leakproofness；Weldering
Dehydrogenation is carried out using oscillating aging afterwards and eliminates welding stress processing, the oscillating aging time is 30min~40min.
According to different plates thickness, different welding point types select different groove and size；When plate thickness be 10mm~
30mm groove is double V grooves, 45 °~90 ° of bevel angle, when plate thickness is 30 °~45 ° of the mono- V-butt of 3mm~10mm, each weldering
Seam fusion penetration reaches the depth of weld of 1/2~2/3 plate thickness.
By controlling welding sequence, school shape process is added, welding deformation is controlled；
Wherein, cavity main body cover board individually welds, and first welds main body cover plate water channel 1 and cover board water channel 22, welding process
In, using skip welding, the method for two people's symmetrical weldings, control deformation；Primary school shape is carried out after welding；After the completion of water channel welding, into
The welding of row reinforcing rib 1 and reinforcing rib 24；After the completion of cover board welding, oscillating aging is carried out；
Cavity main body welding: first well floor 9 and cavity side plate 1 and cavity side plate 27 are grouped, it is desirable that between group pair
Within gap 0.2；After positioning welding, long weld seam is welded using horizontal position, and cross joint uses vertical welding；One 8 He of cavity cover board
Cavity cover board 2 10 finally welds；
After cavity main body welding welding is completed, side plate water channel 5 is welded on cavity main body, when welding, still uses skip welding,
The principle of symmetrical welding controls welding deformation；Postwelding oscillating aging destressing；
Cavity main body cover board is finally welded with cavity main body finally, completes the welding of entire cavity.
With reference to embodiments to further detailed description of the invention.
Welding sequence principle of the present invention:
(1) first veneer, rear main body facilitate school shape；
(2) first external discontinuous welding, rear internal sequential welding, uniform welding stress；
(3) symmetrical welding controls internal stress and deformation；
(4) long weld seam uses skip welding method, reduces local heat input, controls welding deformation.
Embodiment the result shows that, present invention process ensure that the leakproofness of postwelding cavity, the test of postwelding helium reaches 2.6 ×
10-8Mbar × l/sec, the problem of meeting such cavity leakproofness well.The invention can also solve group to positioning accuracy, weldering
The problems such as connecing deformation, welding efficiency and welding bead quality.By selecting, strength matching close with the chemical component of lead frame material
Welding material, it is ensured that weld strength；By low current multi-pass welding, thermal weld stress is controlled, Reducing distortion passes through
Postwelding school shape guarantees that integral solder assembling precision can effectively control welding deformation amount by welding sequencing.
Claims (5)
1. a kind of solar energy steel plate plated film cavity welding technique, it is characterised in that: use gas tungsten arc welding, used
Welding wire is ER308L, gage of wire:Electric power polarity: straight polarity direct current；Welding process technological parameter are as follows: welding current
180~260A, 14~22V of weldingvoltage, 100~150mm/min of speed of welding；Tungsten electrode: lanthanum tungsten electrode, tungsten electrode diameter:Protective gas: high-purity Ar, 99.999%；Gas shield flow: 10~20L/min；Interlayer temperature < 120 DEG C.
2. solar energy steel plate plated film cavity welding technique described in accordance with the claim 1, which is characterized in that by weight percentage
Meter, the chemical component of ER308L welding wire are as follows: C:0.03%, Si:0.60%, Mn:1.8%, Ni:10.0%, Cr:20.0%,
S:0.008%, P:0.015%.
3. solar energy steel plate plated film cavity welding technique described in accordance with the claim 1, which is characterized in that welding process is strictly pressed
According to technique requirement, the specific steps are as follows:
(1) it before welding, is handled as follows: carrying out cleaning by degreasing with the alkaline solution that concentration is 10%NaOH, remove surface oxidation
Skin, it is rear with stainless steel brush cleaning weldment groove and away from the dirt within the scope of the two sides 30~50mm of groove two sides；Isopropyl is used before weldering
Ketone wiped clean；Guarantee that soldering part appearance cannot have any rusty stain, greasy dirt, pollutant；
(2) in welding process: the starting the arc uses run-on tab, in welding process, if cracked, or the defects of folder depressed place, immediately
Stop, removing defect with file, it is ensured that welding bead is eliminated extremely, then proceedes to weld；Interlayer temperature is strictly controlled in welding process
System generates intercrystalline corrosion hereinafter, preventing from overheating at 120 DEG C, influences weld strength；Long weld seam uses skip welding, reduces and draws in thermal collecting
Play biggish welding deformation, in entire welding process, all weld seam symmetrical weldings；During welding cavity, first welding is external disconnected
Continuous weldering, plays the role of rivet welding, rear to weld internal sequential welding, plays the role of sealing；
(3) after welding treatment: when welding ending, arc crater is filled up, welding protection gas is closed after postponing 20s；When there is crater crack
When, crackle is removed, is welded again, guarantees the welding quality at arc crater, avoids generating delayed crack, influences leakproofness；Postwelding
Dehydrogenation is carried out using oscillating aging and eliminates welding stress processing, the oscillating aging time is 30min~40min.
4. solar energy steel plate plated film cavity welding technique described in accordance with the claim 1, which is characterized in that according to different plates thickness
Degree, different welding point types select different groove and size；It is double V grooves, groove when plate thickness is 10mm~30mm groove
45 °~90 ° of angle, when plate thickness is 30 °~45 ° of the mono- V-butt of 3mm~10mm, each weld penetration reaches 1/2~2/3 plate thickness
The depth of weld.
5. solar energy steel plate plated film cavity welding technique described in accordance with the claim 1, which is characterized in that suitable by control welding
Sequence adds school shape process, controls welding deformation；
Wherein, cavity main body cover board individually welds, first welding main body cover plate water channel one and cover board water channel two, in welding process, uses
Skip welding, the method for two people's symmetrical weldings, control deformation；Primary school shape is carried out after welding；After the completion of water channel welding, reinforcing rib is carried out
One and reinforcing rib two welding；After the completion of cover board welding, oscillating aging is carried out；
Cavity main body welding: first well floor and cavity side plate one and cavity side plate two are grouped, it is desirable that group to gap 0.2 with
It is interior；After positioning welding, long weld seam is welded using horizontal position, and cross joint uses vertical welding；Cavity cover board one and cavity cover board
2 10 last welding；
After cavity main body welding welding is completed, side plate water channel is welded on cavity main body, when welding still uses skip welding, symmetrically applies
The principle of weldering controls welding deformation；Postwelding oscillating aging destressing；
Cavity main body cover board is finally welded with cavity main body finally, completes the welding of entire cavity.
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| CN201910574022.1A CN110280869A (en) | 2019-06-28 | 2019-06-28 | A kind of solar energy steel plate plated film cavity welding technique |
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| CN201910574022.1A CN110280869A (en) | 2019-06-28 | 2019-06-28 | A kind of solar energy steel plate plated film cavity welding technique |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115533279A (en) * | 2022-11-24 | 2022-12-30 | 四川科新机电股份有限公司 | Deformation-preventing assembly welding method |
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| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: No.18a-1, Feiyun Road, Hunnan District, Shenyang City, Liaoning Province Applicant after: Shenyang fuchuang precision equipment Co.,Ltd. Address before: No.18a-1, Feiyun Road, Dongling District, Shenyang, Liaoning Province, 110000 Applicant before: Shenyang Fortune Precision Equipment Co.,Ltd. |
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Application publication date: 20190927 |
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| RJ01 | Rejection of invention patent application after publication |