Method for laser repair of spiral feeding screw and additive manufacturing of ceramic accessories of spiral feeding screw
Through laser cladding repair and ceramic 3D printing combined with reverse engineering technology, the problem of feeding screws and ceramic accessories relying on imports is solved, and independent repair and manufacturing is achieved, reducing costs and breaking through technical blockade.
Patent Information
- Application Number
- CN202510521693.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-24
- Publication Date
- 2025-08-15
AI Technical Summary
Feeding screws and their ceramic accessories additives rely on imports, resulting in high costs and being subject to foreign manufacturing blockade, making it difficult to effectively repair and manufacture the existing technology.
Laser cladding repair technology and ceramic 3D printing combined with reverse engineering technology are used to repair failed screws and manufacture ceramic accessories, and establish an associated database to optimize process parameters.
The repair of failed screws and the reverse production of ceramic accessories have been achieved, the replacement of imported products, the reduction of costs, the breakthrough of technological blockades, and the independent development of the industry has been supported.
Smart Images
Figure CN120485760A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of electric power industry production, and in particular to a method for laser repairing a spiral feeding screw and additive manufacturing of its ceramic accessories. Background Art
[0002] Feeding mechanisms are an indispensable component of production lines. With the rapid development of automation technology, the requirements for these mechanisms are becoming increasingly stringent. The basic principle of screw feeding is to use the rotational motion of a helix to transport materials from one location to another. A helix is a continuous spiral line that transports materials from one location to another. The helix's rotational motion can be achieved using devices such as motors and reducers. Screw feeding primarily utilizes frictional resistance during the conveying process. During this process, the screw is subjected to abrasion, and the forces acting on it cause it to cut, leading to screw failure. Factors affecting screw service life include material selection and design, surface metallization (Cr, Ni), and spraying or welding hardened alloys. Currently, feed screws and their ceramic accessories are dependent on imports for additive manufacturing. To address this dependence, a method for laser repair of screw feed screws and additive manufacturing of their ceramic accessories has been proposed. Summary of the Invention
[0003] In view of the shortcomings of the existing technology, the present invention provides a method for laser repair of a spiral feeding screw and additive manufacturing of its ceramic accessories, which solves the problems raised in the above background technology.
[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: a laser repair method for a spiral feeding screw, characterized in that it includes the following steps: S1: Obtain the failed screws that occur during the production process; S2: Detect the failed screw and determine the failure mode of the failed screw; S3: According to the failure mode of the failed screw obtained through identification and analysis, an appropriate technical means is selected for repair, which is laser cladding repair technology; S4: Adjust the parameters of the laser cladding repair technology used according to the failure type of the failed screw to repair the failed screw; S41: Collecting data related to the failure mode and service environment of the failed screw to establish a failed screw association database; S42: Test the repaired screw to obtain the mechanical properties and microstructure characteristics of the screw, and formulate the technical specifications after repair based on the mechanical properties and microstructure characteristics of the screw.
[0005] Optionally, in S3: selecting a suitable technical means for repair according to the failure mode of the failed screw obtained through identification and analysis, the technical means being a laser cladding repair technology in which metal powder is used for cladding repair.
[0006] Optionally, S4: adjusting the parameters of the relevant technical means used according to the failure type of the failed screw, in the step of repairing the failed screw, the laser cladding repair layer and the substrate are metallurgically bonded during the repair process of the failed screw, and the bonding strength is not less than 90% of the substrate, and the thickness of the micro-melting layer during the laser processing is 0.05-0.1 mm, and the heat-affected zone of the substrate is 0.1-0.2 mm.
[0007] Optionally, in the step of S42: inspecting the repaired screw to obtain the mechanical properties and microstructure characteristics of the screw, and formulating the technical specifications after repair based on the mechanical properties and microstructure characteristics of the screw, the microstructure characteristics of the screw are obtained using optical metallographic microscope and electron microscope related technologies. The mechanical properties of the screw include metal hardness and toughness related performance indicators.
[0008] A ceramic component additive manufacturing method, comprising the following steps: S1: Conduct reverse engineering research on ceramic parts required for production. S2: Using 3D reconstruction technology to obtain 3D data of ceramic parts additive manufacturing, and constructing a 3D model of ceramic parts additive manufacturing based on the acquired 3D data; S3: Additively produce ceramic parts by adjusting the process parameters of ceramic 3D printing technology when processing ceramic parts; S4: Test the produced ceramic parts additive materials to obtain the mechanical properties and microstructure characteristics of the ceramic parts additive materials and establish a correlation database; S5: Analyze the data in the associated database and optimize the process parameters for additive manufacturing of ceramic parts.
[0009] Optionally, in the step of analyzing the data in the associated database and optimizing the process parameters for manufacturing ceramic accessories additive, multiple sets of ceramic accessories additive production process and mechanical properties and microstructure characteristic data in the associated database are analyzed, and the process parameters for ceramic accessories additive are optimized so that the performance of the reverse ceramic accessories additive is close to that of the original ceramic accessories additive.
[0010] The present invention provides a method for laser repair of a spiral feeding screw and additive manufacturing of its ceramic accessories, which has the following beneficial effects: This method for laser repair of spiral feeding screws and additive manufacturing of their ceramic accessories utilizes laser cladding repair technology, ceramic 3D printing, and reverse engineering technology to achieve the repair of failed screws and reverse production of additive ceramic accessories. It can replace imported screws and additive ceramic accessories for process production, breaking away from the current situation of dependence on imports for feeding screws and additive ceramic accessories, contributing to industrial expansion, breaking through the technological blockade of foreign manufacturing industries, and reducing project costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 This is a diagram of the laser repair method for a spiral feeding screw according to the present invention; Figure 2 A diagram of the additive manufacturing method for ceramic components of the present invention; Figure 3 This is a real picture of the unrepaired screw of the present invention; Figure 4 This is a diagram of the ceramic accessories of the present invention; Figure 5 It is a cross-sectional view of the ceramic accessory of the present invention. DETAILED DESCRIPTION
[0012] The technical solutions in the embodiments of the present invention will be clearly and completely described 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 the embodiments.
[0013] See also Figures 1 to 5 The present invention provides a technical solution: a laser repair method for a spiral feeding screw, comprising the following steps: S1: Obtain the failed screws that occur during the production process; S2: Detect the failed screw and determine the failure mode of the failed screw; S3: According to the failure mode of the failed screw obtained through identification and analysis, an appropriate technical means is selected for repair, which is laser cladding repair technology; S4: Adjust the parameters of the laser cladding repair technology used according to the failure type of the failed screw to repair the failed screw; S41: Collecting data related to the failure mode and service environment of the failed screw to establish a failed screw association database; S42: Test the repaired screw to obtain the mechanical properties and microstructure characteristics of the screw, and formulate the technical specifications after repair based on the mechanical properties and microstructure characteristics of the screw.
[0014] Furthermore, those skilled in the art may know that S3: Based on the failure mode of the failed screw obtained through identification and analysis, appropriate technical means are selected for repair. The technical means is the step of laser cladding repair technology. The laser cladding repair technology uses metal powder for cladding repair. According to the material of the screw, appropriate metal powder is selected for cladding repair. The process parameters are laser output power, spot area, scanning speed, powder feeding gas pressure, powder feeding gas flow rate, and protective gas pressure. The process flow of laser cladding repair technology is as follows: the laser beam first locally heats the workpiece, and then forms a molten pool. Then, fine metal powder is sprayed directly into the molten pool from the nozzle of the laser processing head. During the high-speed laser metal cladding process, the powder particles are almost heated to the melting temperature above the substrate surface.
[0015] Furthermore, those skilled in the art will appreciate that, in step S4: adjusting the parameters of the relevant technical means used based on the failure type of the failed screw, the laser cladding repair layer during the failed screw repair process is metallurgically bonded to the substrate, with a bonding strength of not less than 90% of the substrate. During the laser processing process, the micro-melted layer has a thickness of 0.05-0.1 mm, and the heat-affected zone of the substrate is 0.1-0.2 mm.
[0016] Furthermore, those skilled in the art may know that, in step S42: testing the repaired screw to obtain the mechanical properties and microstructural characteristics of the screw, and formulating the technical specifications after repair based on the mechanical properties and microstructural characteristics of the screw, optical metallographic microscope, electron microscope and related technologies are used to obtain the microstructural characteristics of the screw. The mechanical properties of the screw include metal hardness, toughness and other performance indicators. By adopting the formulated technical specifications for the use of the repaired screw, it is ensured that the repaired screw can operate normally and stably, so that the production line can operate smoothly.
[0017] A ceramic component additive manufacturing method, comprising the following steps: S1: Conduct reverse engineering research on ceramic parts required for production. S2: Using 3D reconstruction technology to obtain 3D data of ceramic parts additive manufacturing, and constructing a 3D model of ceramic parts additive manufacturing based on the acquired 3D data; S3: Additively produce ceramic parts by adjusting the process parameters of ceramic 3D printing technology when processing ceramic parts; S4: Test the produced ceramic parts additive materials to obtain the mechanical properties and microstructure characteristics of the ceramic parts additive materials and establish a correlation database; S5: Analyze the data in the associated database and optimize the process parameters for additive manufacturing of ceramic parts.
[0018] Furthermore, those skilled in the art will appreciate that S5: analyzing the data in the associated database and optimizing the process parameters for manufacturing additive ceramic accessories involves analyzing multiple sets of data on additive production processes, mechanical properties, and microstructural characteristics of ceramic accessories in the associated database, and optimizing the process parameters for additive ceramic accessories so that the performance of the reverse additive ceramic accessories is close to that of the original additive ceramic accessories, thereby breaking away from the current situation of reliance on imports for ceramic accessories.
[0019] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.
Claims
1. A laser repair method for a spiral feed screw, characterized by: The following steps are involved: S1: Obtain the failed screws that occur during the production process; S2: Detect the failed screw and determine the failure mode of the failed screw; S3: According to the failure mode of the failed screw obtained through identification and analysis, an appropriate technical means is selected for repair, which is laser cladding repair technology; S4: Adjust the parameters of the laser cladding repair technology used according to the failure type of the failed screw to repair the failed screw; S41: Collecting data related to the failure mode and service environment of the failed screw to establish a failed screw association database; S42: Test the repaired screw to obtain the mechanical properties and microstructure characteristics of the screw, and formulate the technical specifications after repair based on the mechanical properties and microstructure characteristics of the screw.
2. The laser repair method for a spiral feed screw according to claim 1, characterized in that: Said S3: selecting appropriate technical means for repair according to the failure mode of the failed screw obtained through identification and analysis, wherein the technical means is the step of laser cladding repair technology in which metal powder is used for cladding repair.
3. The laser repair method for a spiral feed screw according to claim 1, characterized in that: Said S4: adjusting the parameters of the relevant technical means used according to the failure type of the failed screw, in the step of repairing the failed screw, the laser cladding repair layer and the substrate are metallurgically bonded during the repair process of the failed screw, and the bonding strength is not less than 90% of the substrate. During the laser processing process, the thickness of the micro-melting layer is 0.05-0.1 mm, and the heat-affected zone of the substrate is 0.1-0.2 mm.
4. The laser repair method for a spiral feed screw according to claim 1, characterized in that: The S42: inspecting the repaired screw to obtain the mechanical properties and microstructure characteristics of the screw, and formulating the technical specifications after repair based on the mechanical properties and microstructure characteristics of the screw, uses optical metallographic microscope, electron microscope and other related technologies to obtain the microstructure characteristics of the screw. The mechanical properties of the screw include metal hardness and toughness related performance indicators.
5. A method for additive manufacturing of ceramic parts, characterized by: The following steps are involved: S1: Conduct reverse engineering research on ceramic parts required for production. S2: Using 3D reconstruction technology to obtain 3D data of ceramic parts additive manufacturing, and constructing a 3D model of ceramic parts additive manufacturing based on the acquired 3D data; S3: Additively produce ceramic parts by adjusting the process parameters of ceramic 3D printing technology when processing ceramic parts; S4: Test the produced ceramic parts additive materials to obtain the mechanical properties and microstructure characteristics of the ceramic parts additive materials and establish a correlation database; S5: Analyze the data in the associated database and optimize the process parameters for additive manufacturing of ceramic parts.
6. The method for additive manufacturing of ceramic parts according to claim 5, characterized in that: The step of analyzing the data in the associated database and optimizing the process parameters for manufacturing ceramic parts additively comprises analyzing multiple sets of ceramic parts additive production process and mechanical properties and microstructure characteristic data in the associated database, and optimizing the process parameters for ceramic parts additively, so that the performance of the reverse ceramic parts additively is close to that of the original ceramic parts additively.