Flux-cored wire with high deformation resistance, high restraint and large thick plate welding
By designing an anti-deformation flux-cored welding wire, the structural strength of the welding wire during the welding process was enhanced, solving the problem of easy deformation of the welding wire in high-constraint, thick plate welding, and achieving improved welding effect and welding wire reliability.
Patent Information
- Application Number
- CN202423017328.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-09
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2034-12-09
AI Technical Summary
Existing flux-cored welding wires for high-constraint, thick plate welding have weak resistance to deformation during welding, the outer metal is prone to deformation and breakage, and the welding effect is poor.
A flux-cored welding wire with strong resistance to deformation was designed, comprising an outer metal sheath, a powder filling cavity, and multiple manganese-containing welding wires. By setting up structures such as a central welding wire groove, a limiting groove, and an arc-shaped groove, the overall strength and resistance to deformation of the welding wire are enhanced, and preheating treatment is performed during welding.
This technology enables the internal reinforcement and anti-deformation function of the welding wire during the welding process, improves the welding effect, prevents the outer wire from separating, and enhances the reliability and efficiency of welding.
Smart Images
Figure CN223572258U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to welding wire technical field, concretely is a kind of high restraint, high thick plate welding flux-cored wire with strong anti-deformation ability. BACKGROUND
[0002] Flux-cored wire is also called powder core welding wire, tubular welding wire, its surface is the same as solid core welding wire, which is made of low-carbon steel or low-alloy steel with good plasticity, and the manufacturing method is to first roll the steel strip into a U-shaped cross-section, then fill the welding powder into the U-shaped steel strip according to the dosage, and finally roll it tightly with a rolling mill, and then draw it into different specifications of flux-cored wire.
[0003] In high restraint, high thick plate welding work, due to the thick steel plate used in the component, the ring gap restraint degree between the plates is quite high, and the cooling speed of the weld is large due to the fast heat transfer of the thick plate during welding, so the probability of cold cracking is relatively large. Flux-cored wire is usually used for welding, and preheating is required before welding. At present, the flux-cored wire used for high restraint, high thick plate welding is mostly similar in overall structure, with the outer metal directly clamping the flux. There are some deficiencies in the use process, and there is room for improvement, such as the weak anti-deformation ability of the overall welding wire, the welding wire directly stretched by the outer metal directly clamping the flux, which is relatively thin in structure, and the outer metal is weak in thickness after drawing. It is easy to deform and break under bending and extrusion, and does not have the function of internal strengthening and anti-deformation.
[0004] Now, a new type of high restraint, high thick plate welding flux-cored wire with strong anti-deformation ability is proposed to solve the above problems. CONTENT OF THE UTILITY MODEL
[0005] The utility model aims to provide a kind of high restraint, high thick plate welding flux-cored wire with strong anti-deformation ability to solve the problem of not having the function of internal strengthening and anti-deformation in the above background technology.
[0006] To achieve the above purpose, the utility model provides the following technical scheme: a kind of high restraint, high thick plate welding flux-cored wire with strong anti-deformation ability, including outer metal, the inside of outer metal is provided with powder filling cavity, the middle position of the bottom end of outer metal is provided with central welding wire groove, the middle position of the inside of powder filling cavity is fixedly connected with first manganese-containing welding wire, the right side of the inside of powder filling cavity is filled with first flux, the bottom of the right side of the inside of powder filling cavity is fixedly connected with second manganese-containing welding wire, the left side of the inside of powder filling cavity is filled with second flux, the bottom end of the left side of the inside of powder filling cavity is fixedly connected with third manganese-containing welding wire, the inside of central welding wire groove is clamped with fourth manganese-containing welding wire.
[0007] As a further technical scheme of the utility model, the upper and lower ends of the first manganese-containing welding wire are connected with the upper and lower ends inside the powder filling cavity respectively, and the front and back ends of the outer skin metal and the first manganese-containing welding wire are flush.
[0008] As a further technical scheme of the utility model, the lengths of the first manganese-containing welding wire, the second manganese-containing welding wire and the third manganese-containing welding wire are same, the shape size of the outer part of the second manganese-containing welding wire and the third manganese-containing welding wire is matched with the shape size of the inside of the powder filling cavity, and the outer wall of the second manganese-containing welding wire and the third manganese-containing welding wire is connected with the inner wall of the powder filling cavity.
[0009] As a further technical scheme of the utility model, the outer diameter of the fourth manganese-containing welding wire is same with the inner diameter of the central welding wire groove, and the outer wall of the fourth manganese-containing welding wire is fixedly connected with the inner wall of the central welding wire groove.
[0010] As a further technical scheme of the utility model, the first manganese-containing welding wire, the second manganese-containing welding wire and the third manganese-containing welding wire are manganese-containing welding wire H08MnA, and the first flux and the second flux are HJ431 flux.
[0011] As a further technical scheme of the utility model, the bottom end of the central welding wire groove is provided with a lower through groove, the left and right sides of the lower through groove are respectively provided with three groups of limiting grooves, the bottom end of the outer skin metal is respectively provided with arc grooves on the two sides, the bottom end of the fourth manganese-containing welding wire is welded with a vertical extension strip, the left and right sides of the vertical extension strip are respectively fixedly connected with horizontal extension strips, the side, away from the vertical extension strip, of the horizontal extension strip is provided with an arc surface edge strip, and the bottom end of the vertical extension strip is welded with an arc clamping strip.
[0012] As a further technical scheme of the utility model, the shape size of the inside of the lower through groove and the limiting groove is same with the shape size of the outside of the vertical extension strip, the horizontal extension strip and the arc surface edge strip, and the horizontal extension strip and the arc surface edge strip are symmetrically distributed about the vertical center line of the vertical extension strip.
[0013] As a further technical scheme of the utility model, the shape size of the outside of the arc clamping strip is same with the shape size of the inside of the arc groove, and the materials of the fourth manganese-containing welding wire, the vertical extension strip, the horizontal extension strip, the arc surface edge strip and the arc clamping strip are same.
[0014] Compared with the prior art, the utility model has the advantages that the high-confinement and large-thickness-plate welding flux-cored wire with strong anti-deformation capability not only realizes the function of internal strengthening and anti-deformation, but also realizes the functions of improving welding effect and preventing the outer skin welding wire from separating.
[0015] (1) through the setting has the outer skin metal, powder filling cavity, first manganese-containing welding wire, first flux, second manganese-containing welding wire, second flux, third manganese-containing welding wire, central welding wire groove and fourth manganese-containing welding wire, when using, the first flux, second flux in the outer skin metal and powder filling cavity constitute the main body of welding wire, the central welding wire groove formed by the bending of the outer skin metal, the fourth manganese-containing welding wire as the central core wire of welding wire, increase the overall strength, at the same time, the first manganese-containing welding wire, second manganese-containing welding wire and third manganese-containing welding wire in the powder filling cavity three groups of thin welding wire can further improve the structural strength, improve the ability of anti-deformation and bending resistance, realize the internal strengthening anti-deformation function;
[0016] (2) through the setting has the first manganese-containing welding wire, first flux, second manganese-containing welding wire, second flux, third manganese-containing welding wire and fourth manganese-containing welding wire, when using, when welding high restraint, large thick plate, the butt joint position is preheated to 100 DEG C by flame spraying, and then welding, the first manganese-containing welding wire, second manganese-containing welding wire, third manganese-containing welding wire and fourth manganese-containing welding wire, four groups of welding wire cooperate with the outer skin metal, can quickly fill the gap in the welding process, make the welding bead quickly fusion, realize the function of improving the welding effect;
[0017] (3) through the setting has the lower through groove, limiting groove, arc groove, vertical extension bar, horizontal extension bar, arc surface edge and arc clamping strip, when using, with the outer skin metal covering the fourth manganese-containing welding wire, the horizontal extension bar on both sides of the vertical extension bar, the arc surface edge is clamped into the limiting groove on both sides of the lower through groove, the arc clamping strip is buckled into the arc groove, can lock the bottom of the outer skin metal, prevent it from cracking and separating, the fourth manganese-containing welding wire is pulled out, realize the function of preventing the outer skin welding wire from separating. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 It is the front view sectional structure schematic diagram of the utility model;
[0019] Figure 2 It is the outer skin metal front view sectional structure schematic diagram of the utility model;
[0020] Figure 3 It is the Figure 1 It is the local section enlarged structure schematic diagram of the utility model in A place;
[0021] Figure 4 It is the fourth manganese-containing welding wire front view structure schematic diagram of the utility model.
[0022] In the figure: 1, outer skin metal; 2, powder filling cavity; 3, first manganese-containing welding wire; 4, first welding flux; 5, second manganese-containing welding wire; 6, second welding flux; 7, third manganese-containing welding wire; 8, central welding wire groove; 9, fourth manganese-containing welding wire; 10, lower through groove; 11, limiting groove; 12, arc-shaped groove; 13, vertically extending strip; 14, transversely extending strip; 15, arc surface edge strip; 16, arc-shaped clamping strip. DETAILED DESCRIPTION
[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.
[0024] Embodiment 1: please refer to Figures 1-4 A flux-cored wire for welding high-constraint and large-thickness plates with strong deformation resistance, comprising an outer skin metal 1, wherein a powder filling cavity 2 is arranged in the inner part of the outer skin metal 1, a central welding wire groove 8 is arranged at the middle position of the bottom end of the outer skin metal 1, a first manganese-containing welding wire 3 is fixedly connected to the middle position in the inner part of the powder filling cavity 2, a first welding flux 4 is filled in the right part of the inner part of the powder filling cavity 2, a second manganese-containing welding wire 5 is fixedly connected to the bottom of the right part of the inner part of the powder filling cavity 2, a second welding flux 6 is filled in the left part of the inner part of the powder filling cavity 2, a third manganese-containing welding wire 7 is fixedly connected to the bottom end of the left part of the inner part of the powder filling cavity 2, and a fourth manganese-containing welding wire 9 is clamped in the central welding wire groove 8.
[0025] The upper and lower ends of the first manganese-containing welding wire 3 are connected to the upper and lower ends of the inner part of the powder filling cavity 2 respectively, the front and rear ends of the outer skin metal 1 and the first manganese-containing welding wire 3 are flush, the lengths of the first manganese-containing welding wire 3, the second manganese-containing welding wire 5 and the third manganese-containing welding wire 7 are the same, the shapes and sizes of the outer parts of the second manganese-containing welding wire 5 and the third manganese-containing welding wire 7 are adapted to the shapes and sizes of the inner part of the powder filling cavity 2, the outer wall of the second manganese-containing welding wire 5 and the third manganese-containing welding wire 7 is connected to the inner wall of the powder filling cavity 2, the outer diameter of the fourth manganese-containing welding wire 9 is consistent with the inner diameter of the central welding wire groove 8, and the outer wall of the fourth manganese-containing welding wire 9 is fixedly connected to the inner wall of the central welding wire groove 8, so as to increase the structural strength of the welding wire and improve the deformation resistance.
[0026] Specifically, as Figure 1 , Figure 2 and Figure 3As shown, the outer skin metal 1 is bent to form a central welding wire groove 8, and the fourth manganese-containing welding wire 9 is used as the central core wire of the welding wire, which can increase the overall strength, and the first manganese-containing welding wire 3, the second manganese-containing welding wire 5 and the third manganese-containing welding wire 7 in the powder filling cavity 2 can further improve the structural strength and the ability to resist deformation and bending.
[0027] In the embodiment 2, the first manganese-containing welding wire 3, the second manganese-containing welding wire 5 and the third manganese-containing welding wire 7 are all H08MnA manganese-containing welding wires, and the first welding flux 4 and the second welding flux 6 are both HJ431 welding fluxes, which can improve the welding strength for high restraint and thick plates.
[0028] Specifically, as shown in Figure 1 and Figure 3 , the first manganese-containing welding wire 3, the second manganese-containing welding wire 5, the third manganese-containing welding wire 7 and the fourth manganese-containing welding wire 9 cooperate with the outer skin metal 1 to quickly fill the gap during the welding process, so that the welding beads can quickly fuse.
[0029] In the embodiment 3, the bottom end of the central welding wire groove 8 is provided with a lower through groove 10, and the left and right sides of the lower through groove 10 are respectively provided with three groups of limiting grooves 11. The bottom end of the outer skin metal 1 is provided with an arc-shaped groove 12 on each side. The bottom end of the fourth manganese-containing welding wire 9 is welded with a vertical extension bar 13, and the left and right sides of the vertical extension bar 13 are respectively fixedly connected with a horizontal extension bar 14. The side of the horizontal extension bar 14 away from the vertical extension bar 13 is provided with an arc surface rib 15. The bottom end of the vertical extension bar 13 is welded with an arc-shaped clamping strip 16. The shape and size of the inside of the lower through groove 10 and the limiting groove 11 are consistent with the shape and size of the outside of the vertical extension bar 13, the horizontal extension bar 14 and the arc surface rib 15. The horizontal extension bar 14 and the arc surface rib 15 are symmetrically distributed about the vertical center line of the vertical extension bar 13. The shape and size of the outside of the arc-shaped clamping strip 16 are consistent with the shape and size of the inside of the arc-shaped groove 12. The materials of the fourth manganese-containing welding wire 9, the vertical extension bar 13, the horizontal extension bar 14, the arc surface rib 15 and the arc-shaped clamping strip 16 are the same, which can reduce the probability of cracking of the welding wire.
[0030] Specifically, as shown in Figure 1 and Figure 4 , the horizontal extension bars 14 and the arc surface ribs 15 on the two sides of the vertical extension bar 13 at the bottom of the fourth manganese-containing welding wire 9 are clamped into the limiting grooves 11 on the two sides of the lower through groove 10, and the arc-shaped clamping strip 16 is buckled into the arc-shaped groove 12, which can lock the bottom of the outer skin metal 1 to prevent it from cracking and separating, and the fourth manganese-containing welding wire 9 from being pulled out.
[0031] Working principle: the utility model discloses in use, first, the first flux 4, second flux 6 in the outer skin metal 1 and powder filling cavity 2 constitute the main part of welding wire, the central welding wire groove 8 formed by the outer skin metal 1 is bent, and the fourth manganese-containing welding wire 9 is used as the central core wire of welding wire, so that the overall strength is increased, and the first manganese-containing welding wire 3, the second manganese-containing welding wire 5 and the third manganese-containing welding wire 7 in the powder filling cavity 2 can further improve the structural strength and the ability of deformation resistance and bending resistance. When welding high restraint and thick plate, the butt joint position is preheated to 100 DEG C by flame spraying, and then welding is carried out, the first manganese-containing welding wire 3, the second manganese-containing welding wire 5, the third manganese-containing welding wire 7 and the fourth manganese-containing welding wire 9, four groups of welding wires cooperate with the outer skin metal 1, and the gap can be quickly filled in the welding process, so that the welding bead is quickly fused. With the outer skin metal 1 covering the fourth manganese-containing welding wire 9, the vertical extension strip 13 is clamped into the limiting groove 11 on the both sides of the lower through groove 10, and the arc-shaped clamping strip 16 is buckled into the arc-shaped groove 12, so that the bottom of the outer skin metal 1 can be locked to prevent it from cracking and separating, and the fourth manganese-containing welding wire 9 is pulled out.
[0032] It is obvious for those skilled in the art that the utility model is not limited to the details of the above-mentioned exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, no matter from which point, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the utility model is defined by the appended claims instead of the above description, so as to include all changes falling within the meaning and scope of the equivalent elements of the claims in the utility model. Any reference signs in the claims should not be regarded as limiting the involved claims.
Claims
1. A high-constraint, large-thick-plate welding flux-cored wire having high deformation resistance, comprising an outer sheath metal (1), characterized in that: The outer skin metal (1) is internally provided with a powder filling cavity (2), the middle position of the bottom end of the outer skin metal (1) is provided with a central welding wire groove (8), the middle position inside the powder filling cavity (2) is fixedly connected with a first manganese-containing welding wire (3), the right side inside the powder filling cavity (2) is filled with a first welding flux (4), the bottom of the right side inside the powder filling cavity (2) is fixedly connected with a second manganese-containing welding wire (5), the left side inside the powder filling cavity (2) is filled with a second welding flux (6), the bottom end of the left side inside the powder filling cavity (2) is fixedly connected with a third manganese-containing welding wire (7), and the inside of the central welding wire groove (8) clamps a fourth manganese-containing welding wire (9).
2. The high-restraint, large-thick plate welding flux-cored wire with high deformation resistance according to claim 1, characterized in that: The upper and lower ends of the first manganese-containing welding wire (3) are connected with the upper and lower ends inside the powder filling cavity (2) respectively, and the front and rear ends of the outer skin metal (1) and the first manganese-containing welding wire (3) are flush.
3. The high-restraint, large-thick plate welding flux-cored wire with high deformation resistance according to claim 1, characterized in that: The lengths of the first manganese-containing welding wire (3), the second manganese-containing welding wire (5) and the third manganese-containing welding wire (7) are the same, the shapes and sizes of the outer sides of the second manganese-containing welding wire (5) and the third manganese-containing welding wire (7) are matched with the shapes and sizes of the inside of the powder filling cavity (2), and the outer walls of the second manganese-containing welding wire (5) and the third manganese-containing welding wire (7) are connected with the inner wall of the powder filling cavity (2).
4. The high-restraint, large-thick plate welding flux-cored wire with high deformation resistance according to claim 1, characterized in that: The outer diameter of the fourth manganese-containing welding wire (9) is consistent with the inner diameter of the central welding wire groove (8), and the outer wall of the fourth manganese-containing welding wire (9) is fixedly connected with the inner wall of the central welding wire groove (8).
5. The high-restraint, large-thick plate welding flux-cored wire with high deformation resistance according to claim 1, characterized in that: The first manganese-containing welding wire (3), the second manganese-containing welding wire (5) and the third manganese-containing welding wire (7) are manganese-containing welding wires H08MnA, and the first welding flux (4) and the second welding flux (6) are HJ431 welding fluxes.
6. The high-restraint, large-thick plate welding flux-cored wire with high deformation resistance according to claim 1, characterized in that: The bottom end of the central welding wire groove (8) is provided with a lower through groove (10), the left and right sides of the lower through groove (10) are respectively provided with three groups of limiting grooves (11), the bottom end of the outer skin metal (1) is respectively provided with arc-shaped grooves (12) on the two sides, the bottom end of the fourth manganese-containing welding wire (9) is welded with a vertically extending strip (13), the left and right sides of the vertically extending strip (13) are respectively fixedly connected with horizontally extending strips (14), one side of the horizontally extending strip (14) away from the vertically extending strip (13) is provided with an arc-surface edge strip (15), and the bottom end of the vertically extending strip (13) is welded with an arc-shaped clamping strip (16).
7. The high-restraint, large-thick plate welding flux-cored wire with high deformation resistance according to claim 6, characterized in that: The shapes and sizes of the inside of the lower through groove (10) and the limiting groove (11) are consistent with the shapes and sizes of the outside of the vertically extending strip (13), the horizontally extending strip (14) and the arc-surface edge strip (15), and the horizontally extending strip (14) and the arc-surface edge strip (15) are symmetrically distributed about the vertical center line of the vertically extending strip (13).
8. The high-restraint, large-thick plate welding flux-cored wire with high deformation resistance according to claim 6, characterized in that: The shapes and sizes of the outside of the arc-shaped clamping strip (16) are consistent with the shapes and sizes of the inside of the arc-shaped groove (12), and the materials of the fourth manganese-containing welding wire (9), the vertically extending strip (13), the horizontally extending strip (14), the arc-surface edge strip (15) and the arc-shaped clamping strip (16) are the same.