CN112171009A - Welding method and welding device - Google Patents
Welding method and welding device Download PDFInfo
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- CN112171009A CN112171009A CN202011038142.9A CN202011038142A CN112171009A CN 112171009 A CN112171009 A CN 112171009A CN 202011038142 A CN202011038142 A CN 202011038142A CN 112171009 A CN112171009 A CN 112171009A
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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
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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
- B23K9/24—Features related to electrodes
- B23K9/26—Accessories for electrodes, e.g. ignition tips
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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
Abstract
A welding method and a welding device are provided, wherein a plurality of welding wires are adopted in the welding method to weld a welding seam, an electric arc is generated by the plurality of welding wires during welding, and the length direction of a molten pool formed by welding is larger than the width direction. The length direction of the molten pool generated by the welding method is larger than the width direction, so that the angle between the molten pool and the welding line can be adjusted according to the actual condition, the phenomena of arc breakage or burning through are avoided, and the welding quality is improved. The welding device can drive a plurality of welding wires to weld simultaneously, and the welding method is realized.
Description
Technical Field
The invention relates to the technical field of welding, in particular to a welding method and a welding device.
Background
Welding is a material connection mode in the mechanical field, the welding principle is that welding wires or other materials for welding are melted at high temperature to generate molten metal, and the molten metal is respectively connected with two parts, so that the connection between different parts is realized.
When welding, molten metal forms a molten pool, and the molten pool covers the welding seam to achieve qualified welding effect.
In actual engineering, when a transverse welding seam is spliced, due to actual conditions such as blanking errors and uneven root gaps, arc breakage or burning through easily occurs when welding is performed by adopting the conventional welding method, and the welding quality is seriously influenced.
Disclosure of Invention
The invention aims to provide a welding method, wherein the length direction of a generated molten pool is larger than the width direction, so that the angle between the molten pool and a welding seam can be adjusted according to the actual condition, the phenomena of arc breakage or burning through are avoided, and the welding quality is improved.
Another object of the present invention is to provide a welding apparatus that can drive a plurality of welding wires to perform welding at the same time, and realize the above-described welding method.
The invention is realized by the following steps:
a welding method adopts a plurality of welding wires to weld a welding seam, the welding wires generate an electric arc during welding, and the length direction of a molten pool formed by welding is larger than the width direction.
If the length direction of the molten pool is vertical to the extending direction of the welding seam, the molten pool can be spread in the left and right directions of the welding seam, so that the burning-through phenomenon is avoided; if the length direction of the molten pool is along the extending direction of the welding seam, the molten pool can be spread in the front and back direction of the welding seam, thereby avoiding the arc breaking phenomenon.
In a preferred embodiment of the present invention, the welding method further includes: backing welding is carried out on the welding seam by adopting a plurality of welding wires, the arrangement direction of the welding wires is vertical to the extension direction of the welding seam, the welding wires move along the welding seam together for welding, and the length direction of a molten pool formed by welding is vertical to the extension direction of the welding seam; the electric current range of the backing weld is 200A to 240A, and the welding speed range is 120mm to 160mm per minute.
In a preferred technical scheme of the invention, when backing welding is carried out on the welding seam, a plurality of welding wires swing along the width direction of the welding seam while moving along the welding seam, the amplitude range of the swing of the plurality of welding wires along the width direction of the welding seam is 1mm to 3mm, and the swing frequency range is 20 times to 26 times per minute.
In a preferred embodiment of the present invention, the welding method further includes: filling and welding the welding seams by adopting a plurality of welding wires, wherein the arrangement direction of the welding wires is parallel to or vertical to the extension direction of the welding seams, and the welding wires move along the welding seams together to weld; the current range for fill welding is 300A to 400A, and the welding speed range is 350mm to 450mm per minute.
In a preferred embodiment of the present invention, the welding method further includes: adopting a plurality of welding wires to perform cover surface welding on the welding seam, wherein the arrangement direction of the welding wires is vertical to the extension direction of the welding seam, the welding wires move along the welding seam together to perform welding, and the length direction of a molten pool formed by welding is vertical to the extension direction of the welding seam; the current range of the cover surface welding is 220A to 260A, and the welding speed range is 220mm to 300mm per minute.
In a preferred embodiment of the present invention, the welding method further includes: carrying out vertical welding on the welding seam by adopting a plurality of welding wires, wherein the arrangement direction of the welding wires is parallel to the extension direction of the welding seam, the welding wires move along the welding seam together for welding, and the length direction of a molten pool formed by welding is parallel to the extension direction of the welding seam; the range of current for vertical welding is 120A to 160A, and the range of welding speed is 60mm to 120mm per minute.
In a preferred technical scheme of the invention, when the welding seam is subjected to vertical welding, a plurality of welding wires swing along the width direction of the welding seam while moving along the welding seam, the amplitude range of the swing of the plurality of welding wires along the width direction of the welding seam is 4mm to 10mm, and the swing frequency range is 20 times to 26 times per minute.
A welding device comprises a conductive nozzle and a conductive nozzle seat; the contact tube is provided with a plurality of spaced welding wire holes, the rear part of the contact tube comprises a connecting section, the connecting section comprises a body and a clamping flange, and the clamping flange is arranged on the outer side surface of the body and protrudes out of the outer side surface of the body along the radial direction; the conductive nozzle seat comprises a through hole, the front part of the through hole comprises a connecting hole, the connecting hole is matched with the body of the connecting section, a first clamping groove and a second clamping groove which are connected are arranged on the inner wall of the connecting hole, the first clamping groove extends along the axial direction of the through hole, the first clamping groove extends to the front end face of the conductive nozzle seat, the second clamping groove is connected with the rear end of the first clamping groove, and the second clamping groove extends along the circumferential direction of the connecting hole; the clamping flange can enter the second clamping groove through the first clamping groove to connect the conductive nozzle and the conductive nozzle seat.
The contact tip of the welding device is provided with a plurality of welding wire holes, can contain a plurality of welding wires and drive the plurality of welding wires to be welded together, and the length direction of a generated molten pool is larger than the width direction, so that the welding method is realized.
In a preferred technical scheme of the invention, two welding wire holes are arranged on the contact tip at intervals, and the distance of the two welding wire holes in the radial direction of the contact tip is smaller than or equal to the diameter of the welding wire holes.
In a preferred technical scheme of the present invention, the conductive nozzle base is further provided with one or more air guide holes, the air guide holes penetrate through the side wall of the conductive nozzle base along the radial direction of the through hole, and the air guide holes are located at the rear side of the connecting hole in the axial direction of the through hole.
The invention has the following beneficial effects: the length direction of the molten pool generated by the welding method is larger than the width direction, so that the angle between the molten pool and the welding line can be adjusted according to the actual condition, the phenomena of arc breakage or burning through are avoided, and the welding quality is improved. The welding device can drive a plurality of welding wires to weld simultaneously, and the welding method is realized.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a perspective view of a conductive nozzle mount of an embodiment of a welding apparatus of the present invention;
FIG. 2 is a perspective view of the front end of a conductive nozzle mount of an embodiment of the welding apparatus of the present invention;
FIG. 3 is a cross-sectional view of a conductive tip seat of an embodiment of the welding apparatus of the present invention;
FIG. 4 is a perspective view of a contact tip of an embodiment of the welding apparatus of the present invention;
FIG. 5 is a top view of a contact tip of an embodiment of the welding apparatus of the present invention;
fig. 6 is a bottom view of a contact tip of an embodiment of the welding apparatus of the present invention.
In the figure:
10-a contact tip; 101-a wire hole; 11-a connecting segment; 111-snap-fit flanges; 12-a tip section; 20-a conductive nozzle base; 21-the preceding paragraph; 22-rear section; 23-a connection hole; 231-a first card slot; 232-a second card slot; 24-an air-vent connecting section; 25-air guide hole.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Some embodiments of the invention are described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.
The invention provides a welding method and a welding device, wherein the welding method adopts a plurality of welding wires to generate an electric arc, so that the length direction of a formed molten pool is larger than the width direction, and then the angle between the molten pool and a welding seam is adjusted according to specific welding requirements, so that the phenomena of arc breakage or burning through are avoided, and higher welding quality is obtained.
The welding apparatus of the present invention, which can implement the above-described welding method, is shown in fig. 1 to 6 as one embodiment of the welding apparatus of the present invention.
In the present embodiment, the welding apparatus includes a contact tip 10 and a contact tip holder 20, and two spaced welding wire holes 101 are formed in the contact tip 10, so that the contact tip 10 can accommodate two welding wires and energize the two welding wires to drive the two welding wires to weld together, so as to generate a molten pool generated by the welding method, the length direction of the molten pool is the arrangement direction of the two welding wires, and the width direction of the molten pool is the perpendicular direction to the arrangement direction of the two welding wires, so that the welding apparatus can implement the welding method of the present invention.
As shown in fig. 5, the shortest distance between two wire holes 101 is smaller than or equal to the diameter of wire hole 101, and during welding, two wires generate one arc to realize double-wire single-arc welding.
As shown in fig. 4, the contact tip 10 has a connection segment 11 thereon, the contact tip holder 20 has a connection hole 23 thereon, the connection segment 11 is inserted into the connection hole 23, and the connection segment 11 and the connection hole 23 are engaged with each other, thereby connecting the contact tip 10 and the contact tip holder 20.
As shown in fig. 4 and 6, the connecting section 11 includes a body and a clamping flange 111, the clamping flange 111 is disposed on the outer side of the body and protrudes from the outer side of the body in the radial direction, the clamping flange 111 of the embodiment is semi-cylindrical, and the upper and lower end surfaces of the clamping flange 111 are planes parallel to the radial direction of the body.
As shown in fig. 2, a first engaging groove 231 and a second engaging groove 232 are disposed on an inner wall of the connecting hole 23, the first engaging groove 231 extends along an axial direction of the through hole, the first engaging groove 231 extends to a front end surface of the conductive nozzle holder 20, the second engaging groove 232 is connected to a rear end of the first engaging groove 231, and the second engaging groove 232 extends along a circumferential direction of the connecting hole 23.
When connecting the contact tip 10 and the contact tip holder 20, the clamping flange 111 is first aligned with the position of the first clamping groove 231, then the connecting segment 11 is inserted into the connecting hole 23, and after the clamping flange 111 moves to the position of the second clamping groove 232, the contact tip 10 is screwed, so that the clamping flange 111 moves to one end of the second clamping groove 232, which is far away from the first clamping groove 231, and the clamping flange 111 is clamped into the second clamping groove 232.
After the clamping flange 111 is clamped into the second clamping groove 232, the upper end surface of the clamping flange 111 is limited by the upper side groove wall of the second clamping groove 232, and the lower end surface of the clamping flange 111 is limited by the lower side groove wall of the second clamping groove 232, so that the connecting section 11 is prevented from being separated from the connecting hole 23, and the connection between the conductive nozzle 10 and the conductive nozzle seat 20 is realized.
The contact tip 10 and the contact tip seat 20 of the welding device are clamped in an L-shaped groove, compared with threaded connection, the contact tip 10 and the contact tip seat 20 do not need to rotate for multiple circles, so that welding wires are prevented from being wound together in the contact tip seat 20, the wire feeding is smoother, and the short circuit phenomenon caused by the winding of the welding wires is avoided.
The through hole of the conductive nozzle holder 20 further includes an air guide hole connection section 24, the air guide hole connection section 24 is located at the rear side of the connection hole 23 in the axial direction of the through hole, and the inner diameter of the air guide hole connection section 24 is smaller than the inner diameter of the connection hole 23.
The conductive nozzle base 20 is further provided with one or more air holes 25, the air holes 25 penetrate through the side wall of the conductive nozzle base 20 along the radial direction of the through hole, the air holes 25 are located on the rear side of the connecting hole 23 in the axial direction of the through hole, and the air holes 25 are communicated with the air hole connecting section 24.
As shown in fig. 3, the conducting nozzle holder 20 of the present embodiment includes six air holes 25, and the air holes 25 are uniformly distributed along the circumferential direction of the conducting nozzle holder 20.
During welding, the welding shielding gas flows through the gas guide hole 25, i.e., high-pressure shielding gas is introduced into the contact tip holder 20 through the gas guide hole 25, the shielding gas flows into the contact tip 10 and is discharged from the gap between the welding wire and the welding wire hole 101, and a shielding gas layer is formed around the welding seam.
The protective gas layer covers the welding pool and isolates air, so that the welding quality is improved.
The shielding gas was 28 gases, i.e., 2 parts carbon dioxide and 8 parts argon.
As shown in fig. 1, the nozzle holder includes a front section 21 and a rear section 22, the diameter of the front section 21 is smaller than that of the rear section 22, and the connection hole 23, the air hole connection section 24 and the air hole 25 are all located on the front section 21.
The rear section 22 is used for connection to a wire feeding device.
As shown in fig. 4, the contact tip 10 includes a connection section 11 and a tip section 12, the diameter of the connection section 11 is smaller than that of the rear portion of the tip section 12, and a section of the front end of the tip section 12 is in a necked-down structure to form a tip for facilitating welding.
The welding method adopts a plurality of welding wires to weld a welding seam, the plurality of welding wires generate an electric arc during welding, and the length direction of a molten pool formed by welding is larger than the width direction.
By adopting the welding method, the angle between the length direction of the molten pool and the extending direction of the welding seam can be adjusted according to the welding position and the specific requirement so as to realize different welding effects.
The welding seam is the clearance between two spare parts of treating the connection, and the extending direction of welding seam is the length direction in clearance, including straight line and curve, and the welding wire moves along the extending direction of welding seam during the welding, welds the welding seam in proper order.
The welding method is suitable for transverse welding and vertical welding, namely the depth direction of a welding seam is parallel to the horizontal direction, and welding planes are vertical, wherein the welding seam extending along the horizontal direction is transverse welding, and the welding seam extending along the vertical direction is vertical welding.
The length direction of the molten pool formed by the welding method is larger than the width direction, so that the length direction of the molten pool can be parallel to the extending direction of the welding seam, or the length direction of the molten pool is perpendicular to the extending direction of the welding seam.
If the length direction of the molten pool is parallel to the extending direction of the welding line during welding, the cooling speed of the molten pool can be slowed down, the cooling time of the molten pool is increased, the discharge of impurities and harmful gas of the welding line is facilitated, the impact toughness of the welding line is improved, the content of diffused hydrogen is reduced, and better welding quality is obtained.
If the length direction of the molten pool is perpendicular to the extending direction of the welding seam during welding, a wider molten pool can be obtained, fusion between welding beads is facilitated, and the defect of welding seam curling is reduced.
When plates with the thickness of 6mm or more are transversely welded, the width and the thickness of a covering groove cannot be guaranteed due to the filling amount of each welding, a welding method of multilayer and multi-pass welding is needed, the quality of weld metal can be improved through the multilayer and multi-pass welding, the welding steps are generally divided into backing welding, filling welding and cover surface welding, a subsequent welding seam has a heat treatment effect on a previous welding seam, namely, one normalizing treatment is carried out on a previous welding seam, and the secondary structure of the welding seam is improved.
Firstly, welding is carried out at the bottom of a welding seam, and the bottom of the welding seam is connected and closed, namely backing welding is carried out. When the welding method is adopted for backing welding, a molten pool generated by welding has better adaptability to the gap error of the welding seam root, the phenomenon that the welding seam is burnt through or broken arc is generated at the position with overlarge gap due to the uneven root gap is avoided, and the forming effect of the welding backing and the back forming effect of single-side welding double-side forming are ensured.
And after backing welding, continuously welding the welding line, so that the welding line is filled with the welding flux, namely filling welding. In some embodiments, the arrangement direction of the welding wires during filling welding is arranged along the extension direction of the welding seam, and the length direction of the molten pool is parallel to the extension direction of the welding seam, so that the cooling speed of the molten pool is reduced, the cooling time of the molten pool is increased, the discharge of impurities and harmful gases of the welding seam is facilitated, the impact toughness of the welding seam is improved, the content of diffused hydrogen is reduced, and better welding quality is obtained. In other embodiments of the filling welding, a plurality of welding wires are arranged at intervals, the arrangement direction of the plurality of welding wires is perpendicular to the extending direction of the welding seam, the plurality of welding wires move together along the welding seam to perform welding, and the length direction of a molten pool formed by welding is perpendicular to the extending direction of the welding seam.
After the fill welding, the weld joint needs to be welded on the upper surface of the plate material, so that the weld joint is covered by the welding flux, namely, the cover welding. When the cover surface welding is carried out, the arrangement direction of a plurality of welding wires is the same as that of the backing welding and is perpendicular to the extending direction of the welding seam, and the length direction of the molten pool is perpendicular to the extending direction of the welding seam, so that a wider molten pool is formed, the accumulation of molten metal in the molten pool is reduced, and the cover surface welding quality is improved.
The first embodiment:
backing welding, wherein a plurality of welding wires are arranged at intervals, the arrangement direction of the welding wires is perpendicular to the extending direction of a welding seam, the welding wires move along the welding seam together for welding, and the length direction of a molten pool formed by welding is perpendicular to the extending direction of the welding seam; the welding current is 200A, the welding voltage is 26V, and the welding speed is 120mm per minute; when the welding wires move along the welding line to weld, the welding wires simultaneously swing along the width direction of the welding line, namely swing up and down along the vertical direction, the amplitude of the swing of the welding wires along the width direction of the welding line is 1mm, and the swing frequency range is 20 times per minute;
filling welding, wherein a plurality of welding wires are arranged at intervals, the arrangement direction of the welding wires is parallel to the extending direction of a welding seam, the welding wires move along the welding seam together for welding, and the length direction of a molten pool formed by welding is parallel to the extending direction of the welding seam; the welding current is 300A, the welding voltage is 32V, and the welding speed is 350mm per minute;
the method comprises the following steps of performing cover surface welding, wherein a plurality of welding wires are arranged at intervals, the arrangement direction of the welding wires is perpendicular to the extending direction of a welding seam, the welding wires move along the welding seam together for welding, and the length direction of a molten pool formed by welding is perpendicular to the extending direction of the welding seam; the welding current is 220A, the welding voltage is 28V, and the welding speed is 220mm per minute.
Second embodiment:
backing welding, wherein a plurality of welding wires are arranged at intervals, the arrangement direction of the welding wires is perpendicular to the extending direction of a welding seam, the welding wires move along the welding seam together for welding, and the length direction of a molten pool formed by welding is perpendicular to the extending direction of the welding seam; the welding current is 240A, the welding voltage is 20V, and the welding speed is 160mm per minute; when the welding wires move along the welding line to weld, the welding wires simultaneously swing along the width direction of the welding line, namely swing up and down along the vertical direction, the amplitude of the swing of the welding wires along the width direction of the welding line is 3mm, and the swing frequency range is 26 times per minute;
filling welding, wherein a plurality of welding wires are arranged at intervals, the arrangement direction of the welding wires is parallel to the extending direction of a welding seam, the welding wires move along the welding seam together for welding, and the length direction of a molten pool formed by welding is parallel to the extending direction of the welding seam; the welding current is 400A, the welding voltage is 36V, and the welding speed is 450mm per minute;
the method comprises the following steps of performing cover surface welding, wherein a plurality of welding wires are arranged at intervals, the arrangement direction of the welding wires is perpendicular to the extending direction of a welding seam, the welding wires move along the welding seam together for welding, and the length direction of a molten pool formed by welding is perpendicular to the extending direction of the welding seam; the welding current is 260A, the welding voltage is 32V, and the welding speed is 300mm per minute.
In the two embodiments, the arrangement direction of the welding wires during the filling welding is arranged along the extending direction of the welding seam, while in other embodiments, the arrangement direction of a plurality of welding wires is perpendicular to the extending direction of the welding seam, and the length direction of a molten pool formed by welding is perpendicular to the extending direction of the welding seam. A plurality of welding wires are arranged side by side left and right in the welding seam to obtain a wider molten pool, which is beneficial to the fusion between welding beads and reduces the defect of welding seam curling.
The welding method in the above embodiment is a welding parameter used in horizontal welding, and the welding method of the present invention further includes vertical welding. In the vertical welding process, unlike the horizontal welding, in which the welding torch is moved in the vertical direction and the molten pool has a tendency to flow downward by gravity, an example of performing vertical welding by the welding method of the double-wire single-arc welding of the present invention will be given below.
Vertical welding the first embodiment:
the welding method comprises the following steps that a plurality of welding wires are arranged at intervals, the arrangement direction of the welding wires is parallel to the extending direction of a welding seam, the welding wires move along the welding seam together to carry out welding, and the length direction of a molten pool formed by welding is parallel to the extending direction of the welding seam;
the welding current is 120A, the welding voltage is 22V, and the welding speed is 60mm per minute;
when the welding wires move along the welding line to weld, the welding wires swing along the width direction of the welding line simultaneously, namely swing left and right along the horizontal direction, the amplitude of the swing of the welding wires along the width direction of the welding line is 4mm, and the swing frequency range is 20 times per minute.
Vertical welding second embodiment:
the welding method comprises the following steps that a plurality of welding wires are arranged at intervals, the arrangement direction of the welding wires is parallel to the extending direction of a welding seam, the welding wires move along the welding seam together to carry out welding, and the length direction of a molten pool formed by welding is parallel to the extending direction of the welding seam;
the welding current is 160A, the welding voltage is 24V, and the welding speed is 120mm per minute;
when the welding wires move along the welding line to weld, the welding wires simultaneously swing along the width direction of the welding line, namely swing left and right along the horizontal direction, the amplitude of the swing of the welding wires along the width direction of the welding line is 10mm, and the swing frequency range is 26 times per minute.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A welding method is characterized in that a plurality of welding wires are adopted to weld a welding seam, an electric arc is generated by the plurality of welding wires during welding, and the length direction of a molten pool formed by welding is larger than the width direction.
2. The welding method of claim 1, further comprising:
a plurality of welding wires are adopted for backing welding of the welding seams, the welding wires are arranged at intervals, the arrangement direction of the welding wires is perpendicular to the extending direction of the welding seams, the welding wires move along the welding seams together for welding, and the length direction of a molten pool formed by welding is perpendicular to the extending direction of the welding seams;
the electric current range of the backing weld is 200A to 240A, and the welding speed range is 120mm to 160mm per minute.
3. The welding method according to claim 2, wherein, in backing welding the weld, the plurality of welding wires are oscillated in the width direction of the weld while moving along the weld, the amplitude of the oscillation in the width direction of the weld of the plurality of welding wires ranges from 1mm to 3mm, and the oscillation frequency ranges from 20 times to 26 times per minute.
4. The welding method of claim 1, further comprising:
filling and welding the welding seams by adopting a plurality of welding wires, wherein the arrangement direction of the welding wires is parallel to or vertical to the extension direction of the welding seams, and the welding wires move along the welding seams together to weld;
the current range for fill welding is 300A to 400A, and the welding speed range is 350mm to 450mm per minute.
5. The welding method of claim 1, further comprising:
adopting a plurality of welding wires to perform cover surface welding on the welding seam, wherein the arrangement direction of the welding wires is vertical to the extension direction of the welding seam, the welding wires move along the welding seam together to perform welding, and the length direction of a molten pool formed by welding is vertical to the extension direction of the welding seam;
the current range of the cover surface welding is 220A to 260A, and the welding speed range is 220mm to 300mm per minute.
6. The welding method of claim 1, further comprising:
carrying out vertical welding on the welding seam by adopting a plurality of welding wires, wherein the arrangement direction of the welding wires is parallel to the extension direction of the welding seam, the welding wires move along the welding seam together for welding, and the length direction of a molten pool formed by welding is parallel to the extension direction of the welding seam;
the range of current for vertical welding is 120A to 160A, and the range of welding speed is 60mm to 120mm per minute.
7. The welding method according to claim 6, wherein, in the vertical position welding of the weld, the plurality of welding wires are oscillated in the width direction of the weld while moving along the weld, the amplitude of the oscillation in the width direction of the weld of the plurality of welding wires ranges from 4mm to 10mm, and the oscillation frequency ranges from 20 times to 26 times per minute.
8. A welding device, characterized by comprising a contact tip (10) and a contact tip holder (20); the contact tube (10) is provided with a plurality of welding wire holes (101) which are spaced from each other, the rear part of the contact tube (10) comprises a connecting section (11), the connecting section (11) comprises a body and a clamping flange (111), and the clamping flange (111) is arranged on the outer side surface of the body and protrudes out of the outer side surface of the body along the radial direction; the conductive nozzle base (20) comprises a through hole, the front part of the through hole comprises a connecting hole (23), the connecting hole (23) is matched with the body of the connecting section (11), the inner wall of the connecting hole (23) is provided with a first clamping groove (231) and a second clamping groove (232) which are connected, the first clamping groove (231) extends along the axial direction of the through hole, the first clamping groove (231) extends to the front end surface of the conductive nozzle base (20), the second clamping groove (232) is connected with the rear end of the first clamping groove (231), and the second clamping groove (232) extends along the circumferential direction of the connecting hole (23); the clamping flange (111) can enter the second clamping groove (232) through the first clamping groove (231) to connect the conductive nozzle (10) and the conductive nozzle seat (20).
9. The welding device according to claim 8, characterized in that two spaced wire holes (101) are opened on the contact tip (10), and the distance between the two wire holes (101) in the radial direction of the contact tip (10) is smaller than or equal to the diameter of the wire holes (101).
10. The welding device according to claim 8, characterized in that one or more air guide holes (25) are further arranged on the conductive nozzle holder (20), the air guide holes (25) penetrate through the side wall of the conductive nozzle holder (20) along the radial direction of the through hole, and the air guide holes (25) are located at the rear side of the connecting hole (23) in the axial direction of the through hole.
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| CN202011038142.9A CN112171009A (en) | 2020-09-27 | 2020-09-27 | Welding method and welding device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115415648A (en) * | 2022-10-22 | 2022-12-02 | 寿光市鼎森机械制造有限公司 | Contact tip and control method of welding gun |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101767245A (en) * | 2009-12-30 | 2010-07-07 | 广州中船龙穴造船有限公司 | Horizontal position welding method |
| CN102352880A (en) * | 2011-09-20 | 2012-02-15 | 鄂州市安信休闲用品有限公司 | Screw-in type connecting sleeve positioned by using clamping groove |
| CN102380687A (en) * | 2010-08-30 | 2012-03-21 | 深圳市瑞凌实业股份有限公司 | Double-gun horizontal automatic welding device and welding method thereof |
| CN102581449A (en) * | 2011-11-22 | 2012-07-18 | 深圳市瑞凌实业股份有限公司 | Twin-wire vertical electrogas welding system with low welding heat input and welding method |
| CN104985306A (en) * | 2015-07-29 | 2015-10-21 | 中冶建筑研究总院有限公司 | Single power and double-thin wire submerged arc automatic welding process suitable for structural steel welding |
| CN106270968A (en) * | 2016-10-26 | 2017-01-04 | 哈尔滨工业大学 | A kind of external nozzle mariages non-co-molten bath narrow clearance G MAW welding torch |
| CN108213661A (en) * | 2017-12-29 | 2018-06-29 | 南京理工大学 | A kind of welding method of the vertical high-strength steel member of vertical position welding of robot double wire |
| CN110125518A (en) * | 2019-05-31 | 2019-08-16 | 山东奥太电气有限公司 | One kind three wire bonds welding system arranged side by side and method |
| CN209850074U (en) * | 2019-05-05 | 2019-12-27 | 河南中原辊轴有限公司 | Single-arc double-wire surfacing wire feeding mechanism |
| CN111097995A (en) * | 2018-10-26 | 2020-05-05 | 林肯环球股份有限公司 | Dual wire welding or additive manufacturing contact tip and diffuser |
-
2020
- 2020-09-27 CN CN202011038142.9A patent/CN112171009A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101767245A (en) * | 2009-12-30 | 2010-07-07 | 广州中船龙穴造船有限公司 | Horizontal position welding method |
| CN102380687A (en) * | 2010-08-30 | 2012-03-21 | 深圳市瑞凌实业股份有限公司 | Double-gun horizontal automatic welding device and welding method thereof |
| CN102352880A (en) * | 2011-09-20 | 2012-02-15 | 鄂州市安信休闲用品有限公司 | Screw-in type connecting sleeve positioned by using clamping groove |
| CN102581449A (en) * | 2011-11-22 | 2012-07-18 | 深圳市瑞凌实业股份有限公司 | Twin-wire vertical electrogas welding system with low welding heat input and welding method |
| CN104985306A (en) * | 2015-07-29 | 2015-10-21 | 中冶建筑研究总院有限公司 | Single power and double-thin wire submerged arc automatic welding process suitable for structural steel welding |
| CN106270968A (en) * | 2016-10-26 | 2017-01-04 | 哈尔滨工业大学 | A kind of external nozzle mariages non-co-molten bath narrow clearance G MAW welding torch |
| CN108213661A (en) * | 2017-12-29 | 2018-06-29 | 南京理工大学 | A kind of welding method of the vertical high-strength steel member of vertical position welding of robot double wire |
| CN111097995A (en) * | 2018-10-26 | 2020-05-05 | 林肯环球股份有限公司 | Dual wire welding or additive manufacturing contact tip and diffuser |
| CN209850074U (en) * | 2019-05-05 | 2019-12-27 | 河南中原辊轴有限公司 | Single-arc double-wire surfacing wire feeding mechanism |
| CN110125518A (en) * | 2019-05-31 | 2019-08-16 | 山东奥太电气有限公司 | One kind three wire bonds welding system arranged side by side and method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115415648A (en) * | 2022-10-22 | 2022-12-02 | 寿光市鼎森机械制造有限公司 | Contact tip and control method of welding gun |
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