Preparation method of macroscopic casting blank inclusions

Abstract

The invention relates to the technical field of metal casting, in particular to a preparation method of macroscopic casting blank inclusions, which comprises the following steps: selecting the inclusions according to research requirements and research directions, and detecting the purity and chemical components of the inclusions; preparing a substrate material for bearing inclusions; mixing the selected inclusions with a substrate material; putting the mixed inclusions and the substrate material into a mold, and dipping; fixing the inclusions on the substrate material by using an adhesive for sintering and curing; cutting the cured sample, carrying out characterization and analysis on the prepared sample by using an analysis tool, and observing the morphology and distribution of the inclusions and the interaction between the inclusions and the substrate material; and key parameters and observation results in the experiment process are recorded, an experiment report is compiled, the casting blank inclusions can be prepared more conveniently and comprehensively through fusion of the casting blank inclusions and the substrate, so that the preparation efficiency is higher, and a better use prospect is brought.

Description

Technical Field

[0001] The invention belongs to the technical field of metal casting, and in particular relates to a method for preparing low-multiple casting inclusions. Background Art

[0002] Low-magnification ingot inclusions refer to various undesirable inclusions contained in the metal billets or castings cast during the metal casting process. These inclusions are usually formed by external impurities or gases introduced into the metal in liquid state or during the solidification process. These inclusions have a significant impact on the physical and chemical properties of the metal. In industrial production, the generation of inclusions is usually controlled and reduced by optimizing the casting process, improving the quality of raw materials, and adopting effective filtering and purification methods to ensure the quality and performance of castings. By analyzing the composition and function of low-magnification ingot inclusions, its generation rate can be reduced, which needs to be controlled.

[0003] The existing preparation methods for low-magnification ingot inclusions are relatively complicated, and the analysis is not comprehensive enough, resulting in low precision of the experimental results. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a method for preparing low-magnification ingot inclusions to solve the above technical problems.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a method for preparing low-magnification ingot inclusions, the preparation method comprising: S1: selecting inclusions according to research needs and research directions, and detecting their purity and chemical composition; S2: preparing a base material for carrying inclusions; S3: mixing the selected inclusions with the base material; S4: placing the mixed inclusions and base material into a mold for impregnation; S5: using an adhesive to fix the inclusions on the base material for sintering and solidification; S6: cutting the solidified sample, using analytical tools to characterize and analyze the prepared sample, and observing the morphology, distribution and interaction of the inclusions with the base material; S7: recording key parameters and observations during the experiment, and writing an experimental report.

[0006] Preferably, the step of S1 is: Clarify the specific purpose and direction of the research and select the type of inclusions; Select inclusions, which include particles of metals, non-metals and other compounds, including oxides, silica powder and sulfides; After obtaining the inclusion sample, the purity is checked; Check the appearance and color of inclusion samples; Use ICP-OES chemical analysis technology to detect the element content in inclusions; Use X-ray diffraction to examine the crystal structure and composition of inclusions; Scanning electron microscopy and energy dispersive spectrometry were used to characterize the morphology, size distribution and chemical composition of inclusions. Record the analysis results and prepare an analysis report; Surface treatment of inclusions.

[0007] Preferably, the step of S2 is: Select a substrate material that is compatible with the selected inclusions, does not undergo significant chemical reactions and interactions, can be cut, pressed and processed, and has a smooth surface; Use solvent to clean the surface of the base material; Use a sawing machine to cut the base material into appropriate sizes and shapes; Surface treatment of the substrate material, including grinding, polishing and sandblasting; During the experiment, all the prepared substrate material samples were checked for consistency in properties and dimensions.

[0008] Preferably, the step of S3 is: By weighing the selected inclusions and base materials using a balance; The inclusion powder is gradually added to the base material, and the mixing method includes: Mechanical stirring: using stirring equipment to mix; Manual mixing: For small-scale experimental samples, manual mixing is used to evenly add and disperse the inclusion powder into the base material using rubber gloves and tools; Control the time and speed of mixing; Check the quality of the mix regularly; Store the mixed samples properly and label them.

[0009] Preferably, the step of S4 is: Prepare the mold and clean the mold; Pour the mixed inclusions and base material evenly into the prepared mold until the mixture fills the mold; Tap the mold to vibrate the mixture and remove voids and bubbles; Prepare the impregnation medium to penetrate and fill the gaps between the inclusions and the base material. The specific steps of impregnation include: Slowly pour the impregnation medium into the mold, making sure it fills the entire mixture and soaks into every nook and cranny of the inclusions and base material; Control the time of immersion; After the impregnation is completed, shake to remove the excess impregnation medium; According to the requirements of the impregnation medium, place the mixture in the mold in a suitable environment for curing and hardening, wait for a period of time at room temperature and then cure until the impregnation medium is completely cured; Make sure to remove the sample from the mold after curing and hardening is complete.

[0010] Preferably, the step of S5 is: Prepare base materials and inclusions, and select adhesives according to the properties of the inclusions and base materials. Adhesives include resins, glues and ceramic adhesives; Applying the adhesive to the surface of the base material; Pressing the prepared inclusion onto the surface of the adhesive-coated base material; The adhesive is cured, and the specific steps include: Heating stage: according to the requirements of the adhesive, the sample is placed in a heat treatment device and gradually heated to the sintering temperature; Insulation stage: After reaching the sintering temperature, maintain the state so that the binder is fully solidified and the combination of inclusions and base materials reaches the best state; Cooling stage: After the sintering time is over, the temperature is gradually lowered to room temperature until the sample can be handled safely; The sintered and solidified samples are further processed, including cutting, grinding and polishing, to obtain the required shape and surface quality.

[0011] Preferably, the step of S6 is: Use cutting equipment to cut the cured sample into thin slices; Use a grinder to polish the cut samples; A scanning electron microscope was used to observe the microstructure of the sample surface and cross section, the morphology and distribution of inclusions, and the interface between the inclusions and the base material.

[0012] Preferably, the operation steps include: Prepare samples and apply conductive coating on the sample surface to enhance the conductivity of SEM; The sample was placed in the SEM chamber and vacuum treated to avoid gas interference; Adjust the SEM operating parameters, including acceleration voltage and working distance, to obtain clear microscopic images; Observe and record the microstructure of the sample, paying attention to the shape, size, distribution density of the inclusions, and the interface with the base material; Use an optical microscope to observe the surface and cross-section of the sample; During SEM analysis, energy spectrum analysis (EDS) is used to obtain chemical composition information. EDS can detect the elemental composition of the sample surface and analyze the chemical interaction between inclusions and the base material. The obtained microstructure images were data recorded and analyzed, and the images were post-processed using image processing software to quantify the distribution and morphological characteristics of inclusions.

[0013] Preferably, the step of S7 is: Generate title and author information, on the first page of the report, including the title of the experiment, the author's name, and the date the experiment was conducted; Generate an abstract that summarizes the purpose, methods, results, and conclusions of the experiment. The length should be between 100-250 words. The introduction explains the background and purpose of the experiment; Describe the specific design and implementation of the experiment, including the materials and equipment used, the experimental procedures, and the operating procedures and experimental conditions; In the Results section, present the data and observations obtained from the experiments.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The present application can make the preparation of ingot inclusions more convenient and comprehensive by integrating the ingot inclusions with the substrate, thereby making the preparation efficiency higher and bringing better use prospects and commercial value. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a flow chart of the steps of the present invention. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present invention.

[0018] The present invention provides a technical solution: a method for preparing low-multiple ingot inclusions, the preparation method comprising: S1: According to research needs and research directions, select inclusions and test their purity and chemical composition; S2: prepare the base material for carrying inclusions; S3: mixing the selected inclusions with the base material; S4: putting the mixed inclusions and base material into a mold for impregnation; S5: using an adhesive to fix the inclusions on the base material for sintering and curing; S6: Cut the solidified samples and use analytical tools to characterize and analyze the prepared samples to observe the morphology, distribution and interaction of inclusions with the substrate material; S7: Record key parameters and observations during the experiment and write an experimental report.

[0019] Furthermore, the steps of S1 are: Clarify the specific purpose and direction of the research and select the type of inclusions; Select inclusions, which include particles of metals, non-metals and other compounds, including oxides, silica powder and sulfides; After obtaining the inclusion sample, the purity is checked; Check the appearance and color of inclusion samples; Use ICP-OES chemical analysis technology to detect the element content in inclusions; Use X-ray diffraction to examine the crystal structure and composition of inclusions; Scanning electron microscopy and energy dispersive spectrometry were used to characterize the morphology, size distribution and chemical composition of inclusions. Record the analysis results and prepare an analysis report; Surface treatment of inclusions.

[0020] Furthermore, the steps of S2 are: Select a substrate material that is compatible with the selected inclusions, does not undergo significant chemical reactions and interactions, can be cut, pressed and processed, and has a smooth surface; Use solvent to clean the surface of the base material; Use a sawing machine to cut the base material into appropriate sizes and shapes; Surface treatment of the substrate material, including grinding, polishing and sandblasting; During the experiment, all the prepared substrate material samples were checked for consistency in properties and dimensions.

[0021] Furthermore, the steps of S3 are: By weighing the selected inclusions and base materials using a balance; The inclusion powder is gradually added to the base material, and the mixing method includes: Mechanical stirring: using stirring equipment to mix; Manual mixing: For small-scale experimental samples, manual mixing is used to evenly add and disperse the inclusion powder into the base material using rubber gloves and tools; Control the time and speed of mixing; Check the quality of the mix regularly; Store the mixed samples properly and label them.

[0022] Preferably, the step of S4 is: Prepare the mold and clean the mold; Pour the mixed inclusions and base material evenly into the prepared mold until the mixture fills the mold; Tap the mold to vibrate the mixture and remove voids and bubbles; Prepare the impregnation medium to penetrate and fill the gaps between the inclusions and the base material. The specific steps of impregnation include: Slowly pour the impregnation medium into the mold, making sure it fills the entire mixture and soaks into every nook and cranny of the inclusions and base material; Control the time of immersion; After the impregnation is completed, shake to remove the excess impregnation medium; According to the requirements of the impregnation medium, place the mixture in the mold in a suitable environment for curing and hardening, wait for a period of time at room temperature and then cure until the impregnation medium is completely cured; Make sure to remove the sample from the mold after curing and hardening is complete.

[0023] Furthermore, the steps of S5 are: Prepare base materials and inclusions, and select adhesives according to the properties of the inclusions and base materials. Adhesives include resins, glues and ceramic adhesives; Applying the adhesive to the surface of the base material; Pressing the prepared inclusion onto the surface of the adhesive-coated base material; The adhesive is cured, and the specific steps include: Heating stage: according to the requirements of the adhesive, the sample is placed in a heat treatment device and gradually heated to the sintering temperature; Insulation stage: After reaching the sintering temperature, maintain the state so that the binder is fully solidified and the combination of inclusions and base materials reaches the best state; Cooling stage: After the sintering time is over, the temperature is gradually lowered to room temperature until the sample can be handled safely; The sintered and solidified samples are further processed, including cutting, grinding and polishing, to obtain the required shape and surface quality.

[0024] Furthermore, the steps of S6 are: Use cutting equipment to cut the cured sample into thin slices; Use a grinder to polish the cut samples; A scanning electron microscope was used to observe the microstructure of the sample surface and cross section, the morphology and distribution of inclusions, and the interface between the inclusions and the base material.

[0025] Further, the operation steps include: Prepare samples and apply conductive coating on the sample surface to enhance the conductivity of SEM; The sample was placed in the SEM chamber and vacuum treated to avoid gas interference; Adjust the SEM operating parameters, including acceleration voltage and working distance, to obtain clear microscopic images; Observe and record the microstructure of the sample, paying attention to the shape, size, distribution density of the inclusions, and the interface with the base material; Use an optical microscope to observe the surface and cross-section of the sample; During SEM analysis, energy spectrum analysis (EDS) is used to obtain chemical composition information. EDS can detect the elemental composition of the sample surface and analyze the chemical interaction between inclusions and the base material. The obtained microstructure images were data recorded and analyzed, and the images were post-processed using image processing software to quantify the distribution and morphological characteristics of inclusions.

[0026] Furthermore, the steps of S7 are: Generate title and author information, on the first page of the report, including the title of the experiment, the author's name, and the date the experiment was conducted; Generate an abstract that summarizes the purpose, methods, results, and conclusions of the experiment. The length should be between 100-250 words. The introduction explains the background and purpose of the experiment; Describe the specific design and implementation of the experiment, including the materials and equipment used, the experimental procedures, and the operating procedures and experimental conditions; In the Results section, present the data and observations obtained from the experiments.

[0027] Embodiment 1: S1: According to research needs and research directions, select inclusions and test their purity and chemical composition; S2: prepare the base material for carrying inclusions; S3: mixing the selected inclusions with the base material; S4: putting the mixed inclusions and base material into a mold for impregnation; S5: using an adhesive to fix the inclusions on the base material for sintering and curing; S6: Cut the solidified samples and use analytical tools to characterize and analyze the prepared samples to observe the morphology, distribution and interaction of inclusions with the substrate material; S7: Record key parameters and observations during the experiment and write an experimental report.

[0028] Comparative Example 1 S1: According to research needs and research directions, select inclusions and test their purity and chemical composition; S2: Cut the inclusions, characterize and analyze the prepared samples using analytical tools, and observe the morphology, distribution, and interaction of the inclusions with the base material; S3: Record key parameters and observations during the experiment and write an experimental report.

[0029] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A method for preparing low-magnification ingot inclusions, characterized in that: The preparation method comprises: S1: According to research needs and research directions, select inclusions and test their purity and chemical composition; S2: prepare the base material for carrying inclusions; S3: mixing the selected inclusions with the base material; S4: putting the mixed inclusions and base material into a mold for impregnation; S5: using an adhesive to fix the inclusions on the base material for sintering and curing; S6: Cut the solidified samples and use analytical tools to characterize and analyze the prepared samples to observe the morphology, distribution and interaction of inclusions with the substrate material; S7: Record key parameters and observations during the experiment and write an experimental report.

2. The method for preparing low-magnification ingot inclusions according to claim 1, characterized in that: The steps of S1 are: Clarify the specific purpose and direction of the research and select the type of inclusions; Select inclusions, which include particles of metals, non-metals and other compounds, including oxides, silica powder and sulfides; After obtaining the inclusion sample, the purity is checked; Check the appearance and color of inclusion samples; Use ICP-OES chemical analysis technology to detect the element content in inclusions; Use X-ray diffraction to examine the crystal structure and composition of inclusions; Scanning electron microscopy and energy dispersive spectrometry were used to characterize the morphology, size distribution and chemical composition of inclusions. Record the analysis results and prepare an analysis report; Surface treatment of inclusions.

3. The method for preparing low-magnification ingot inclusions according to claim 1, characterized in that: The steps of S2 are: Select the base material and use solvent to clean the surface of the base material; Cut the base material using a sawing machine; Surface treatment of the base material includes grinding, polishing and sandblasting.

4. The method for preparing low-magnification ingot inclusions according to claim 1, characterized in that: The steps of S3 are: By weighing the selected inclusions and base materials using a balance; The inclusion powder is gradually added to the base material for mixing. The mixing method includes: Mechanical stirring: using stirring equipment to mix; Manual mixing: For small-scale experimental samples, manual mixing was used to add and disperse the inclusion powder into the base material using rubber gloves and tools; Control the time and speed of mixing; Check the quality of the mix regularly; The mixed samples are stored and labeled.

5. The method for preparing low-magnification ingot inclusions according to claim 1, characterized in that: The steps of S4 are: Prepare the mold and clean the mold; Pour the mixed inclusions and base material evenly into the prepared mold until the mixture fills the mold; Tap the mold to vibrate the mixture and remove voids and bubbles; Prepare the impregnation medium to penetrate and fill the gaps between the inclusions and the base material. The specific steps of impregnation include: Pour the impregnation medium into the mold; Control the time of immersion; After the impregnation is completed, shake to remove the excess impregnation medium; The mixture in the mold is placed in a constant temperature environment for curing and hardening, and then cured at room temperature for a period of time until the impregnation medium is completely cured; After curing and hardening are complete, the sample is removed from the mold.

6. The method for preparing low-magnification ingot inclusions according to claim 1, characterized in that: The steps of S5 are: Prepare the base material and inclusions, and select adhesives, including resins, glues, and ceramic adhesives; Applying the adhesive to the surface of the base material; Pressing the prepared inclusion onto the surface of the adhesive-coated base material; The adhesive is cured, and the specific steps include: Heating stage: according to the requirements of the adhesive, the sample is placed in a heat treatment device and gradually heated to the sintering temperature; Insulation stage: After reaching the sintering temperature, maintain the state so that the binder is fully solidified and the combination of inclusions and base materials reaches the best state; Cooling stage: After the sintering time is over, the temperature is gradually lowered to room temperature until the sample can be handled safely; The sintered and solidified samples are further processed, including cutting, grinding and polishing, to obtain the required shape and surface quality.

7. The method for preparing low-magnification ingot inclusions according to claim 1, characterized in that: The steps of S6 are: Use cutting equipment to cut the cured sample into thin slices; Use a grinder to polish the cut samples; A scanning electron microscope was used to observe the microstructure of the sample surface and cross section, the morphology and distribution of inclusions, and the interface between the inclusions and the base material.

8. The method for preparing low-magnification ingot inclusions according to claim 7, characterized in that: The steps include: Prepare samples and apply conductive coating on the sample surface to enhance the conductivity of SEM; The sample was placed in the SEM chamber and vacuum treated to avoid gas interference; Adjust the SEM operating parameters, including acceleration voltage and working distance, to obtain clear microscopic images; Observe and record the microstructure of the sample, paying attention to the shape, size, distribution density of the inclusions, and the interface with the base material; Use an optical microscope to observe the surface and cross-section of the sample; During SEM analysis, energy spectrum analysis (EDS) is used to obtain chemical composition information. EDS can detect the elemental composition of the sample surface and analyze the chemical interaction between inclusions and the base material. The obtained microstructure images were data recorded and analyzed, and the images were post-processed using image processing software to quantify the distribution and morphological characteristics of inclusions.

9. The method for preparing low-magnification ingot inclusions according to claim 1, characterized in that: The steps of S7 are: Generate title and author information; Generate an abstract that summarizes the purpose, methods, results, and conclusions of the experiment, with a length of 100-250 words; The introduction explains the background and purpose of the experiment; Describe the specific design and implementation of the experiment, including the materials and equipment used, the experimental procedures, and the operating procedures and experimental conditions; In the Results section, present the data and observations obtained from the experiments.

10. The method for preparing low-magnification ingot inclusions according to claim 1, characterized in that: Summarize the findings and results of the experiment, directly answer whether the goals of the experiment were achieved, summarize the main conclusions of the research, and propose further research directions.

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