Uniform nozzle structure for titanium alloy powder laser cladding

Abstract

The utility model discloses a uniform nozzle structure for titanium alloy powder laser cladding, which comprises a nozzle main pipe, the bottom end of the nozzle main pipe is fixedly communicated with a communicating ring cavity, the bottom end of the communicating ring cavity is communicated with a discharging nozzle, the bottom end of the nozzle main pipe is fixedly provided with a flow guide pipe through a mounting assembly, and the communicating ring cavity is communicated with a plurality of feeding pipes communicated with material sources. And the other end of the feeding pipe corresponds to the outer side wall of the flow guide pipe. By arranging the flow guide pipe, when alloy powder enters the communicating annular cavity from the feeding pipe, the alloy powder smoothly enters the discharging nozzle along the outer side wall of the flow guide pipe, the flowing stability of the alloy powder is guaranteed, and follow-up distribution is more uniform; fastening bolts penetrate through the mounting holes, so that the bottom end of the nozzle main pipe is fixedly connected with the flow guide pipe conveniently, and the nozzle main pipe is fixedly connected with the flow guide pipe conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of laser cladding, in particular to a uniform nozzle structure for laser cladding of titanium alloy powder. Background Art

[0002] Titanium alloy materials have an irreplaceable position in many high-tech fields such as aerospace, automobile manufacturing, petrochemicals, and medical devices due to their unique mechanical properties (high strength, low density), excellent corrosion resistance, and good biocompatibility. However, in actual application environments, especially when subjected to complex loads and harsh environmental conditions, the surface properties of titanium alloys often need to be further improved to meet demanding use requirements. For this reason, laser cladding technology has emerged as an advanced surface modification method.

[0003] Laser cladding is the process of using a high-power density laser beam to quickly heat the pre-selected alloy powder to a molten state and achieve metallurgical bonding with the base material to form a cladding layer with excellent performance. This process is extremely critical to the control of the powder delivery method and cladding process parameters. The nozzle is one of the core components in the laser cladding system, and its structural design directly affects the powder atomization effect, cladding efficiency, and the quality uniformity of the cladding layer.

[0004] The traditional nozzle structure may cause uneven thickness, discontinuous structure and even defects in the cladding layer during titanium alloy powder laser cladding due to problems such as uneven powder delivery and poor atomization effect, thus affecting the service life and performance stability of the final product. Therefore, it is necessary to propose a uniform nozzle structure for titanium alloy powder laser cladding. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes a uniform nozzle structure for titanium alloy powder laser cladding.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A uniform nozzle structure for titanium alloy powder laser cladding comprises a nozzle main pipe, the bottom end of which is fixedly connected to a connecting annular cavity, the bottom end of which is connected to a discharge nozzle, a guide pipe is fixedly installed at the bottom end of the nozzle main pipe through an installation component, the connecting annular cavity is connected to a plurality of feed pipes connected to material sources, and the other end of the feed pipe corresponds to the outer side wall of the guide pipe.

[0008] Preferably, the guide tube comprises a horizontal section and an inclined section, the inclined section is arranged to be inclined inward from the horizontal section, and the connection between the horizontal section and the inclined section is processed with a curved surface;

[0009] The end of the feed pipe corresponds to the connection between the horizontal section and the inclined section, and the inclined section extends to the top end of the discharge nozzle;

[0010] It is used to ensure that the alloy powder smoothly enters the discharge nozzle along the outer wall of the guide tube. When the alloy powder enters the connecting ring cavity from the feed pipe, the alloy powder smoothly enters the discharge nozzle along the outer wall of the guide tube.

[0011] Preferably, the mounting assembly comprises a fixed mounting block, a pair of mounting holes are formed on the fixed mounting block, the fixed mounting block is threadedly connected to the bottom end of the nozzle main pipe by fastening bolts passing through the mounting holes, and the fixed mounting block is threadedly connected to the bottom end of the horizontal section of the guide pipe by fastening bolts passing through the mounting holes;

[0012] It is used to make the nozzle main pipe and the guide pipe fixedly connected. After the bottom end of the nozzle main pipe is matched with the top end of the guide pipe, the fixing bolts are passed through the mounting holes to make the bottom end of the nozzle main pipe and the guide pipe fastened and connected.

[0013] Preferably, the connection between the nozzle main pipe and the communicating annular cavity is detachable and the connection between the nozzle main pipe and the communicating annular cavity is sealed;

[0014] Used to ensure the sealing effect of the nozzle structure of the device.

[0015] Preferably, the inner diameter of the discharge nozzle gradually shrinks from top to bottom, and the inner side wall of the discharge nozzle is arranged parallel to the inclined section.

[0016] The utility model has the following beneficial effects:

[0017] 1. By setting up the guide pipe, when the alloy powder enters the connecting ring cavity from the feed pipe, the alloy powder smoothly enters the discharge nozzle along the outer wall of the guide pipe, ensuring the stability of the alloy powder flow and making the subsequent distribution more uniform.

[0018] 2. By setting the installation assembly, after matching the bottom end of the convenient nozzle main pipe with the top end of the guide pipe, the bottom end of the convenient nozzle main pipe and the guide pipe are fastened and connected by fastening bolts penetrating the installation hole, so that the convenient nozzle main pipe and the guide pipe are fixedly connected. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the external structure of a uniform nozzle structure for titanium alloy powder laser cladding proposed by the utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of the nozzle main pipe of the utility model;

[0021] Figure 3 It is a schematic diagram of the cross-sectional structure of the flow guide pipe of the utility model;

[0022] Figure 4 This is a schematic diagram of the installation component structure of the utility model.

[0023] In the figure: 1. Nozzle main pipe; 2. Connecting ring cavity; 3. Discharge nozzle; 4. Mounting assembly; 41. Fixed mounting block; 42. Mounting hole; 43. Fastening bolt; 5. Flow guide pipe; 51. Horizontal section; 52. Inclined section; 6. Feed pipe. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0026] Reference Figure 1-4 A uniform nozzle structure for titanium alloy powder laser cladding includes a nozzle main pipe 1, the bottom end of the nozzle main pipe 1 is fixedly connected with a connecting ring cavity 2, the bottom end of the connecting ring cavity 2 is connected with a discharge nozzle 3, the bottom end of the nozzle main pipe 1 is fixedly installed with a guide pipe 5 through an installation component 4, the connecting ring cavity 2 is connected with a feed pipe 6 connected with a plurality of material sources, and the other end of the feed pipe 6 corresponds to the outer side wall of the guide pipe 5.

[0027] The provision of the flow guide tube 5 enables the alloy powder to enter the communicating annular cavity 2 through the feed tube 6 and be distributed more evenly.

[0028] The flow guide pipe 5 includes a horizontal section 51 and an inclined section 52 . The inclined section 52 is inclined inwardly from the horizontal section 51 . The connection between the horizontal section 51 and the inclined section 52 is processed with a curved surface.

[0029] The end of the feed pipe 6 corresponds to the connection between the horizontal section 51 and the inclined section 52 , and the inclined section 52 extends to the top end of the discharge nozzle 3 .

[0030] The mounting assembly 4 includes a fixed mounting block 41, which is provided with a pair of mounting holes 42. The fixed mounting block 41 is threadedly connected to the bottom end of the nozzle main pipe 1 through a fastening bolt 43 passing through the mounting holes 42. The fixed mounting block 41 is threadedly connected to the bottom end of the horizontal section 51 of the guide pipe 5 through the fastening bolt 43 passing through the mounting holes 42.

[0031] The connection between the nozzle main pipe 1 and the communicating annular cavity 2 can be detachably installed, and the connection between the nozzle main pipe 1 and the communicating annular cavity 2 is sealed.

[0032] The inner diameter of the discharge nozzle 3 gradually shrinks from top to bottom, and the inner side wall of the discharge nozzle 3 is arranged parallel to the inclined section 52 .

[0033] In the utility model, after the bottom end of the convenient nozzle main pipe 1 is matched with the top end of the guide pipe 5, the bottom end of the convenient nozzle main pipe 1 is fastened and connected with the guide pipe 5 by passing the fastening bolt 43 through the mounting hole 42, and the convenient nozzle main pipe 1 and the guide pipe 5 are fixedly connected. When the alloy powder enters the connecting annular cavity 2 from the feed pipe 6, the alloy powder smoothly enters the discharge nozzle 3 along the outer wall of the guide pipe 5, thereby ensuring the stability of the alloy powder flow and making the subsequent alloy powder distribution more uniform.

[0034] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A uniform nozzle structure for titanium alloy powder laser cladding, comprising a nozzle main pipe (1), characterized in that: The bottom end of the nozzle main pipe (1) is fixedly connected to a connecting annular cavity (2), the bottom end of the connecting annular cavity (2) is connected to a discharge nozzle (3), the bottom end of the nozzle main pipe (1) is fixedly mounted with a flow guide pipe (5) via a mounting assembly (4), the connecting annular cavity (2) is connected to a plurality of feed pipes (6) connected to material sources, and the other end of the feed pipe (6) corresponds to the outer side wall of the flow guide pipe (5).

2. The uniform nozzle structure for titanium alloy powder laser cladding according to claim 1, characterized in that: The guide pipe (5) comprises a horizontal section (51) and an inclined section (52); the inclined section (52) is arranged to be inclined inwardly from the horizontal section (51); and the connection between the horizontal section (51) and the inclined section (52) is treated with a curved surface.

3. The uniform nozzle structure for titanium alloy powder laser cladding according to claim 2, characterized in that: The end of the feed pipe (6) corresponds to the connection between the horizontal section (51) and the inclined section (52), and the inclined section (52) extends to the top end of the discharge nozzle (3).

4. The uniform nozzle structure for titanium alloy powder laser cladding according to claim 1, characterized in that: The mounting assembly (4) comprises a fixed mounting block (41), a pair of mounting holes (42) being formed on the fixed mounting block (41), the fixed mounting block (41) being threadedly connected to the bottom end of the nozzle main pipe (1) via a fastening bolt (43) penetrating the mounting holes (42), and the fixed mounting block (41) being threadedly connected to the bottom end of the horizontal section (51) of the flow guide pipe (5) via a fastening bolt (43) penetrating the mounting holes (42).

5. The uniform nozzle structure for titanium alloy powder laser cladding according to claim 1, characterized in that: The connection between the nozzle main pipe (1) and the communicating annular cavity (2) is detachable and installable, and the connection between the nozzle main pipe (1) and the communicating annular cavity (2) is sealed.

6. The uniform nozzle structure for titanium alloy powder laser cladding according to claim 1, characterized in that: The inner diameter of the discharge nozzle (3) gradually shrinks from top to bottom, and the inner side wall of the discharge nozzle (3) is arranged parallel to the inclined section (52).

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