CN110788451A - Advertisement frame welding process - Google Patents
Advertisement frame welding process Download PDFInfo
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- CN110788451A CN110788451A CN201911109208.6A CN201911109208A CN110788451A CN 110788451 A CN110788451 A CN 110788451A CN 201911109208 A CN201911109208 A CN 201911109208A CN 110788451 A CN110788451 A CN 110788451A
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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
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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
- B23K9/173—Arc welding or cutting making use of shielding gas and of a consumable electrode
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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
- B23K9/235—Preliminary treatment
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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
- B23K9/32—Accessories
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- Arc Welding In General (AREA)
Abstract
The invention relates to the field of production and manufacturing of advertisement frames, and particularly discloses an advertisement frame welding process. The method comprises the following steps: s1, arranging a plurality of through grooves at the joint positions of the back layers of the support frames of the advertisement frames, wherein the through grooves penetrate through the back layers from the thickness direction of the back layers, and after the two support frames are butted, the through grooves are in one-to-one correspondence to form through holes; s2, butting the two support frames, extending a welding gun into the support frame cavity from the through hole, and welding the surface layers of the two butted support frames from the inner walls of the surface layers; s3, repeating S2, and welding the rest support frames to form an advertisement frame; and S4, welding the welding seams among the back layers of the support frames of the advertisement frame in sequence. Through setting up logical groove in the seam position department of a frame backing layer, supply welder to stretch into in the cavity from the cavity inside to a frame surface course back weld, consequently, even adopt traditional argon arc to weld or MIG gas shield to weld the surface course back, avoid leaving the crater on the surface course front.
Description
Technical Field
The invention relates to the field of production and manufacturing of advertisement frames, in particular to an advertisement frame welding process.
Background
The advertisement frame is also called an advertisement picture frame and a picture frame and is used for installing advertisement pictures to play a role in propaganda.
As shown in fig. 1, the advertisement frame is generally formed by connecting a plurality of support frames 1 end to end, the section of the support frame 1 perpendicular to the axial direction thereof is in a "C" shape, so that the support frame 1 is in a two-layer structure, that is, the support frame 1 comprises a back layer 101 and a surface layer 102, and after the support frames 1 are connected to form the advertisement frame, a notch in the middle of the "C" shape forms a cavity 10 for mounting advertisement pictures, back plates and face plates.
In order to ensure the connection strength of the advertisement frame, the support frame 1 and the support frame 1 are usually connected in a welding mode, but because the support frame 1 is of a two-layer structure, in the connection process, in order to ensure the flatness of the advertisement picture after the advertisement picture is installed on the advertisement frame and prevent looseness, a cavity 10 for installing the advertisement picture is generally not reserved to be too large so as to just accommodate a back plate, a panel and the advertisement picture, therefore, the welding of the support frame 1 cannot be performed from the inner wall of the cavity 10 of the advertisement frame, and only can be performed from the outer wall of the advertisement frame, but the welding process of the traditional argon arc welding or MIG gas shielded welding cannot avoid leaving welding scars at the welding position, and the scars left on the advertisement propaganda surface (namely the front surface of the advertisement frame) can undoubtedly influence the attractiveness of the advertisement frame, and reduce the economic benefit; however, if the back of the advertisement frame is only welded, the front of the advertisement frame cannot be connected, and a gap exists between the two front branch frames 1, thereby leaving a safety risk, such as the hair of a pedestrian is easily clamped in the gap.
In order to solve the problems, most manufacturers adopt a brazing process to weld the connection positions of the advertisement frames, namely brazing filler metal lower than the melting point of a weldment and the weldment are heated to the melting temperature of the brazing filler metal at the same time, and then the liquid brazing filler metal is used for filling gaps of solid workpieces to enable the metal frames to be connected so as to weaken craters. However, the brazing equipment investment is high and the brazing process is polluted greatly, so that the method cannot be popularized and applied.
Disclosure of Invention
In order to solve the problems, the invention provides an advertisement frame welding process, which realizes the welding of a surface layer and a back layer of an advertisement frame through traditional argon arc welding or MIG (metal-inert gas) shielded welding without leaving welding scars.
The invention provides an advertisement frame welding process, which comprises the following steps:
s1, arranging a plurality of through grooves at the joint positions of the back layers of the support frames of the advertisement frames, wherein the through grooves penetrate through the back layers from the thickness direction of the back layers, and after the two support frames are butted, the through grooves are in one-to-one correspondence to form through holes;
s2, butting the two support frames, extending a welding gun into the support frame cavity from the through hole, and welding the surface layers of the two butted support frames from the inner walls of the surface layers;
s3, repeating S2, and welding the rest support frames to form an advertisement frame;
and S4, welding the welding seams among the back layers of the support frames of the advertisement frame in sequence.
Through adopting above-mentioned technical scheme, set up a plurality of logical grooves in the seam position department of a frame back layer to after two frames butt joints, lead to the groove one-to-one and form the through-hole, the through-hole supplies welder to stretch into in the cavity from the inside welding to a frame surface course back, consequently, even adopt traditional argon arc welding or MIG gas shield welding also can weld the surface course back, avoid openly leaving the crater at the surface course.
In some embodiments, the through slot is located at a position of an outer vertex of the back layer of the rim.
The outer vertex angle of the advertisement frame supporting frame is also the position which is most easily clamped with the foreign matters, and by adopting the technical scheme, the through groove is arranged at the outer vertex angle position of the supporting frame back layer so as to weld the back surface of the supporting frame surface layer at the outer vertex angle position of the advertisement frame supporting frame, so that the gap is eliminated, and the problem that the advertisement frame is easily clamped with the foreign matters is solved.
In some embodiments, between S1 and S2 further comprising:
s11, cleaning a welding area: and cleaning oil stains, oxides and impurities on two sides of the welding surface and on the surface of the welding wire by adopting acetone.
By adopting the technical scheme, the welding area is cleaned before welding to remove surface oil stains and oxidation films, so that the welding quality is improved.
In some embodiments, the facing layers are spot welded by MIG welding or argon arc welding in S2 and S3 or S2-S4.
By adopting the technical scheme, the welding quality of the advertisement frame only has the requirements of connection strength and no touch in gaps, so that the requirement can be met by adopting a spot welding mode on the surface layer, the energy is saved, and the welding efficiency is improved; in addition, because welding is carried out from the back of the surface layer, no crater is left on the front, the condition can be met by adopting MIG (metal-inert gas) shielded welding or argon arc welding, the brazing process is replaced, the production cost is reduced, and the problem of environmental pollution is solved.
In some embodiments, the spot welding counter bore is a round hole with the diameter of 3-10mm or a long hole with the diameter of 3-10mm multiplied by L5-15mm, and the depth is 0.5-1.5 mm.
Through adopting above-mentioned technical scheme, can guarantee welded intensity on the one hand, on the other hand can avoid when welding leaving the seal on the surface course openly.
In some embodiments, the spot welding current is controlled at 70-150A, and the spot welding time is 1-10S.
Through adopting above-mentioned technical scheme, guarantee the joint strength of welding back advertisement frame, openly leave the seal of welding in the surface course simultaneously can avoid when welding.
In some embodiments, the spot welding time period is 1-5S when the spot welding counter bore is a round bore and 6-10S when the spot welding counter bore is an elongated bore.
Through adopting above-mentioned technical scheme, can guarantee welded intensity on the one hand, on the other hand can avoid when welding leaving the seal on the surface course openly.
In some embodiments, before S11, further comprising:
s10, processing a groove at the welding edge of the outer side of the back layer or processing a long strip-shaped sinking groove along the length direction of the edge, wherein the groove is C1.5-2mm multiplied by L10-15mm, and the long strip-shaped sinking groove is phi 3-10mm multiplied by 10-15mm and has the depth of 0.5-1.5 mm.
By adopting the technical scheme, the joint of the back layer adopts the groove or the strip-shaped counter bore to increase the welding area, thereby improving the connection strength of the advertisement frame, and the back layer can not influence the external visual effect of the advertisement frame.
In some embodiments, MIG welding or argon arc welding is adopted in S4 to weld and fill in the grooves or the elongated grooves, the welding current is controlled to be 70-150A, and the welding time of each groove or each elongated groove is 6-10S.
Through adopting above-mentioned technical scheme, can guarantee welded intensity.
In some embodiments, the welding wire is aluminum wire.
Through adopting above-mentioned technical scheme, the welding wire keeps unanimous with the material of advertisement frame, improves visual angle effect under the prerequisite that satisfies joint strength, practices thrift the cost simultaneously.
In summary, compared with the prior art, the advertisement frame welding process provided by the invention has the beneficial technical effects that:
1. through the through groove arranged at the joint position of the back layer of the support frame, a welding gun extends into the cavity to weld the back surface of the surface layer of the support frame from the inside of the cavity, so that the back surface of the surface layer can be welded even by adopting the traditional argon arc welding or MIG shielded welding, and the left crater on the front surface of the surface layer is avoided;
2. the counter bores are formed in the supporting frame, and welding is carried out in the counter bores in a spot welding mode, so that the welding strength can be ensured, the welding efficiency is improved, and energy is saved;
3. through the spot welding of the round holes of the surface layer and the spot welding of the long strip-shaped sink groove of the back layer, welding marks are avoided being left on the surface layer, meanwhile, the welding strength is guaranteed, and energy is saved.
Drawings
FIG. 1 is a schematic diagram of a front structure of an advertisement frame provided by the present invention;
FIG. 2 is a schematic diagram of a back structure of an advertisement frame provided by the present invention.
In the figure: 1. supporting a frame; 101. a back layer; 1012. a strip-shaped sink groove; 102. a surface layer; 1021. a counter bore; 10. a chamber; 11. a through groove; 12. and a through hole.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
According to the advertisement frame welding process disclosed by the invention, as shown in fig. 1, the advertisement frame welded by adopting the welding process is formed by welding a plurality of support frames 1 end to end, the section of each support frame 1, which is perpendicular to the axial direction, is in a C shape, each support frame 1 comprises a back layer 101 and a surface layer 102, the width of the back layer 101 is larger than that of the surface layer 102, and a cavity 10 for accommodating advertisement pictures is formed between the surface layer 102 and the back layer 101. As shown in fig. 1, in the embodiment of the present invention, the advertisement frame is illustrated by taking a rectangular frame as an example, so that both end portions of the support frame 1 are cut at an angle of 45 °.
Example 1:
the advertisement frame welding process disclosed by the invention comprises the following steps of:
s1, as shown in fig. 2, a through groove 11 is formed in the back layer 101 of the support frame 1 enclosing the advertisement frame, the through groove 11 is located at the joint of two adjacent support frames 1, i.e. at the bevel edge of the 45 ° angle at the end of the support frame 1, the through groove 11 penetrates through the back layer 101 from the thickness direction of the back layer 101, and after the two adjacent support frames 1 are butted, the through grooves 11 on the two support frames 1 correspondingly form through holes 12.
As shown in fig. 2, in this embodiment of the present invention, each end of the support frame 1 is provided with a through groove 11, and the through holes 12 formed by the two adjacent support frames 1 in a butt joint manner are formed by combining a triangular through groove on one support frame 1 and a strip-shaped through groove on the other support frame 1. The through hole with the shape not only can provide enough space for the welding gun to extend into, but also can reduce the slotting range.
As shown in fig. 2, the through groove 11 is located at the outer vertex angle position of the back layer 101 of the support frame 1, and the outer vertex angle of the support frame 1 of the advertisement frame is also the position where foreign matters are most easily clamped, so that the through groove 11 is formed at the outer vertex angle position of the back layer 101 of the support frame 1 to weld the support frame surface layer 102 at the outer vertex angle position of the support frame, so that the gap is eliminated, and the problem that the foreign matters are easily clamped by the advertisement frame can be well solved.
In addition, as shown in fig. 2, a counter bore 1021 is arranged at the position corresponding to the through groove 11 of the back layer 101 on the back surface (i.e. the surface facing the back layer 101) of the surface layer 102, and the depth of the round hole with the diameter of phi 3-10mm is controlled to be 0.5-1.5mm (because of small size, the depth can be controlled in the range);
then, as shown in fig. 2, a groove (not shown in the figure) of C1.5-2mm × L10-15mm is processed on the outer welding edge (i.e. the side facing away from the surface layer 102) of the back layer 101 (the groove size is smaller, so that the groove size can be within the range).
And S11, cleaning a welding area, namely cleaning oil stains, oxides and impurities on the two sides of a welding surface and the surface of the welding wire by using acetone to improve the welding quality.
S2, butt-jointing the two support frames 1 to form a right angle therebetween, then extending the welding gun into the chamber 10 of the support frame 1 from the position of the through hole 12, and welding the surface layers of the two butt-jointed support frames 1 from the back surface of the surface layer 102 (i.e. the inner wall of the chamber 10 or the surface of the surface layer 102 facing the back layer 101). In the embodiment of the invention, the surface layer 102 is welded by spot welding through MIG (metal inert gas) welding, namely, the spot welding is carried out in the counter bore 1021 of the surface layer 102 through aluminum wires, the spot welding current is controlled to be 70A, and the spot welding time is 1-5S.
And S3, repeating S2, and welding the rest support frames 1 to form the advertisement frame.
And S4, welding the welding lines among the back layers 101 of the support frames 1 of the advertisement frame in sequence, namely adopting MIG (metal inert gas) shielded welding or argon arc welding to fill in the grooves or the strip-shaped sunken grooves 1012 through aluminum wire welding, controlling the welding current to be 70A, and controlling the welding time of each groove or each strip-shaped sunken groove 1012 to be 6-10S.
S5: and (5) polishing the surface.
S6: and manually checking whether the butt joint position of the front support frame of the advertisement frame has a gap touch feeling.
Example 2:
the advertisement frame welding process disclosed by the invention comprises the following steps of:
s1, as shown in fig. 2, a through groove 11 is formed in the back layer 101 of the support frame 1 enclosing the advertisement frame, the through groove 11 is located at the joint of two adjacent support frames 1, i.e. at the bevel edge of the 45 ° angle at the end of the support frame 1, the through groove 11 penetrates through the back layer 101 from the thickness direction of the back layer 101, and after the two adjacent support frames 1 are butted, the through grooves 11 on the two support frames 1 correspondingly form through holes 12.
As shown in fig. 2, in this embodiment of the present invention, each end of the support frame 1 is provided with a through groove 11, and the through holes 12 formed by the two adjacent support frames 1 in a butt joint manner are formed by combining a triangular through groove on one support frame 1 and a strip-shaped through groove on the other support frame 1. The through hole with the shape not only can provide enough space for the welding gun to extend into, but also can reduce the slotting range.
As shown in fig. 2, the through groove 11 is located at the outer vertex angle position of the back layer 101 of the support frame 1, and the outer vertex angle of the support frame 1 of the advertisement frame is also the position where foreign matters are most easily clamped, so that the through groove 11 is formed at the outer vertex angle position of the back layer 101 of the support frame 1 to weld the support frame surface layer 102 at the outer vertex angle position of the support frame, so that the gap is eliminated, and the problem that the foreign matters are easily clamped by the advertisement frame can be well solved.
In addition, as shown in fig. 2, a counter bore 1021 is arranged at the position corresponding to the through groove 11 of the backing layer 101 on the back surface (i.e. the surface facing the backing layer 101) of the surface layer 102, the counter bore 1021 is a long hole with the diameter of phi 3-phi 10 multiplied by L5-15mm, and the depth is controlled to be 0.5-1.5mm (because the size is smaller, the counter bore can be in the range);
then, as shown in fig. 2, a long-sized sink groove 1012 of 3-10mm x 10-15mm in diameter is formed on the outer side of the back layer 101 along the length direction of the welding edge, and the depth of the long-sized sink groove 1012 is controlled to be 0.5-1.5mm (or within this range because of the small size).
And S11, cleaning a welding area, namely cleaning oil stains, oxides and impurities on the two sides of a welding surface and the surface of the welding wire by using acetone to improve the welding quality.
S2, butt-jointing the two support frames 1 to form a right angle therebetween, then extending the welding gun into the chamber 10 of the support frame 1 from the position of the through hole 12, and welding the surface layers of the two butt-jointed support frames 1 from the back surface of the surface layer 102 (i.e. the inner wall of the chamber 10 or the surface of the surface layer 102 facing the back layer 101). In the embodiment of the invention, the surface layer 102 is welded by spot welding through MIG (metal inert gas) welding, namely, the spot welding is carried out in the counter bore 1021 of the surface layer 102 through aluminum wires, the spot welding current is controlled to be 150A, and the spot welding time is 6-10S.
And S3, repeating S2, and welding the rest support frames 1 to form the advertisement frame.
And S4, welding the welding lines among the back layers 101 of the support frames 1 of the advertisement frame in sequence, namely adopting MIG (metal inert gas) shielded welding or argon arc welding to fill in the grooves or the strip-shaped sunken grooves 1012 through aluminum wire welding, controlling the welding current at 150A, and controlling the welding time of each groove or each strip-shaped sunken groove 1012 to be 6-10S.
S5: and (5) polishing the surface.
S6: and manually checking whether the butt joint position of the front support frame of the advertisement frame has a gap touch feeling.
Example 3:
the advertisement frame welding process disclosed by the invention comprises the following steps of:
s1, as shown in fig. 2, a through groove 11 is formed in the back layer 101 of the support frame 1 enclosing the advertisement frame, the through groove 11 is located at the joint of two adjacent support frames 1, i.e. at the bevel edge of the 45 ° angle at the end of the support frame 1, the through groove 11 penetrates through the back layer 101 from the thickness direction of the back layer 101, and after the two adjacent support frames 1 are butted, the through grooves 11 on the two support frames 1 correspondingly form through holes 12.
As shown in fig. 2, in this embodiment of the present invention, each end of the support frame 1 is provided with a through groove 11, and the through holes 12 formed by the two adjacent support frames 1 in a butt joint manner are formed by combining a triangular through groove on one support frame 1 and a strip-shaped through groove on the other support frame 1. The through hole with the shape not only can provide enough space for the welding gun to extend into, but also can reduce the slotting range.
As shown in fig. 2, the through groove 11 is located at the outer vertex angle position of the back layer 101 of the support frame 1, and the outer vertex angle of the support frame 1 of the advertisement frame is also the position where foreign matters are most easily clamped, so that the through groove 11 is formed at the outer vertex angle position of the back layer 101 of the support frame 1 to weld the support frame surface layer 102 at the outer vertex angle position of the support frame, so that the gap is eliminated, and the problem that the foreign matters are easily clamped by the advertisement frame can be well solved.
In addition, as shown in FIG. 2, a counter bore 1021 is arranged at the position corresponding to the through slot 11 of the backing layer 101 on the back surface (i.e. the surface facing the backing layer 101) of the surface layer 102, the counter bore 1021 is a round hole with a diameter of 3-10mm, and the depth is controlled to be 0.5-1.5 mm;
then as shown in fig. 2, a long strip-shaped sink groove 1012 with the diameter of 3-10mm multiplied by 10-15mm is processed on the outer side of the back layer 101 along the length direction of the welding edge, and the depth of the long strip-shaped sink groove 1012 is controlled to be 0.5-1.5 mm.
And S11, cleaning a welding area, namely cleaning oil stains, oxides and impurities on the two sides of a welding surface and the surface of the welding wire by using acetone to improve the welding quality.
S2, butt-jointing the two support frames 1 to form a right angle therebetween, then extending the welding gun into the chamber 10 of the support frame 1 from the position of the through hole 12, and welding the surface layers of the two butt-jointed support frames 1 from the back surface of the surface layer 102 (i.e. the inner wall of the chamber 10 or the surface of the surface layer 102 facing the back layer 101). In the embodiment of the invention, the surface layer 102 is welded by spot welding through MIG (metal inert gas) welding, namely, the spot welding is carried out in the counter bore 1021 of the surface layer 102 through aluminum wires, the spot welding current is controlled to be 120A, and the spot welding time is 1-5S.
And S3, repeating S2, and welding the rest support frames 1 to form the advertisement frame.
And S4, welding the welding lines among the back layers 101 of the support frames 1 of the advertisement frame in sequence, namely adopting MIG (metal inert gas) shielded welding or argon arc welding to fill in the grooves or the strip-shaped sunken grooves 1012 through aluminum wire welding, controlling the welding current to be 120A, and controlling the welding time of each groove or each strip-shaped sunken groove 1012 to be 6-10S.
S5: and (5) polishing the surface.
S6: and manually checking whether the butt joint position of the front support frame of the advertisement frame has a gap touch feeling.
Observing the advertisement frame welded by the three embodiments, no crater appears on the front surface of the advertisement frame.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (10)
1. The advertisement frame welding process is characterized by comprising the following steps of:
s1, arranging a plurality of through grooves (11) at the joint positions of the back layer (101) of the support frames (1) of the advertisement frame, wherein the through grooves (11) penetrate through the back layer (101) from the thickness direction of the back layer (101), and after the two support frames (1) are butted, the through grooves (11) are in one-to-one correspondence to form through holes (12);
s2, butting the two support frames (1), extending a welding gun into the chamber (10) of the support frame (1) from the through hole (12), and welding the surface layer (102) of the two butted support frames (1) from the inner wall of the surface layer (102);
s3, repeating S2, and welding the rest support frames (1) to form an advertisement frame;
and S4, welding the welding seams among the back layers (101) of the support frames (1) of the advertisement frame in sequence.
2. The advertising frame welding process according to claim 1, wherein the through slot (11) is located at an outer vertex position of the back layer (101) of the supporting frame (1).
3. The advertisement frame welding process of claim 1, further comprising, between S1 and S2:
s11, cleaning a welding area: and cleaning oil stains, oxides and impurities on two sides of the welding surface and on the surface of the welding wire by adopting acetone.
4. A process according to claim 3, wherein the facing layer (102) is welded in spot welding by MIG or argon arc welding in S2 and S3 or S2-S4.
5. The advertisement frame welding process of claim 4, wherein the spot welding counter bore is a round hole with a diameter of 3-10mm or a long hole with a diameter of 3-10mm x L5-15mm, and the depth is 0.5-1.5 mm.
6. An advertisement frame welding process according to claim 4, characterized in that the spot welding current is controlled at 70-150A, and the spot welding time is 1-10S.
7. The advertisement frame welding process according to claim 6, wherein the spot welding time period is 1-5S when the spot welding counter bore is a circular hole, and 6-10S when the spot welding counter bore is a long hole.
8. The advertisement frame welding process of claim 3, further comprising, before S11:
s10, processing a groove at the welding edge of the outer side of the back layer (101) or processing a long strip-shaped sinking groove (1012) along the length direction of the edge, wherein the groove is C1.5-2mm multiplied by L10-15mm, and the long strip-shaped sinking groove (1012) is phi 3-10mm multiplied by 10-15mm and has the depth of 0.5-1.5 mm.
9. The advertisement frame welding process of claim 8, wherein MIG welding or argon arc welding is adopted in S4 to weld and fill in the grooves or the elongated grooves, the welding current is controlled to be 70-150A, and the welding time of each groove or each elongated groove is 6-10S.
10. An advertisement frame welding process according to claim 1, characterized in that the welding wire is aluminum wire.
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CN112091461A (en) * | 2020-08-12 | 2020-12-18 | 星崎电机(苏州)有限公司 | Appearance improvement welding method for welding structure of resin plate and metal frame |
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