Composite material cone structure based on hot isostatic pressing and preparation method thereof

Abstract

The invention discloses a composite material cone structure based on hot isostatic pressing and a preparation method thereof. The preparation method comprises the following steps: (1) respectively processing components of the composite material cone structure; (2) assembling the component parts from top to bottom in sequence to form a cylinder assembly part; (3) placing the cylinder assembly part in a hot isostatic pressing device and carrying out interface fusion; and (4) machining to remove the allowance according to the shape and size of the composite material cone structure. According to the method, the composite material cone structure is divided into the multiple assemblies, then the hot isostatic pressing technology is used for achieving fusion between the different material assemblies, and therefore the integrally-formed structure is formed, the consistency of the mechanical properties of the composite material of the cone structure in all directions can be guaranteed, and the densification degree of the interior of the material is improved.

Description

Technical Field

[0001] The invention relates to the technical field of composite material cone structure preparation, and in particular to a composite material cone structure based on hot isostatic pressing and a preparation method thereof. Background Art

[0002] As a key component of the inductively coupled plasma ion source and mass spectrometer, the long-life high-temperature plasma mass spectrometry interface cone is a key unit for extracting ions generated in the plasma into the vacuum system, and undertakes the key transmission function of ions from atmospheric pressure to vacuum pressure. It plays an important role in high-temperature (4000-10000K) plasma extraction, ion transmission and focusing, vacuum differential, etc. The purity, defects, overall thermal conductivity, acid resistance, and dimensional accuracy and surface quality of the tip and orifice of the interface cone material directly affect the instrument's sensitivity, noise, life, acid and alkali resistance and other performance indicators. At present, the interface cones used in the ICPMS instruments introduced into China and the domestic ICPMS are all imported.

[0003] Metal interface cones made of a single material often cannot meet the use requirements. For example, pure nickel is often used as the base material of the interface cone. Nickel has good high temperature resistance, but its thermal conductivity is poor. The harsh high temperature working environment of the interface cone will make it impossible to extract the heat accumulated at the tip of the interface cone, causing the cone hole to expand / enlarge / fail quickly, greatly reducing the life of the interface cone, and unable to guarantee the vacuum ring interface between the ion source and the mass analyzer, affecting the normal use of the instrument. In addition, the interface cone of the same material will cause the nickel material to volatilize due to the high cone temperature, and the nickel background signal detected by the instrument is too high, affecting the measurement sensitivity. Pure copper has excellent thermal conductivity, but its high temperature resistance is poor. It is easy to oxidize and corrode when exposed to air, and has high requirements for storage conditions.

[0004] Therefore, pure nickel is suitable as the tip high temperature resistant material of the interface cone, but not as the thermal conductive material, and pure copper is suitable as the thermal conductive material of the interface cone, but not as the tip high temperature resistant material. Therefore, the nickel-copper composite metal structure can combine the excellent properties of the two metal materials and be used in extremely harsh environments. How to achieve the preparation of the composite cone structure has become a problem that needs to be solved.

[0005] Patent CN202311873448 discloses a precision interface cone component and its preparation method and application, which uses additive technology to realize the preparation of composite material vertebral structure. Additive manufacturing technology includes laser powder feeding or wire feeding deposition technology and / or electron beam wire feeding deposition technology. Additive manufacturing technology is a rapid manufacturing technology that builds three-dimensional objects by adding layers of materials. Directionality refers to the difference in mechanical properties and properties of each part of the printed object in different directions. In the process of additive manufacturing technology, factors such as the grain structure / interlayer bonding of the printed material will cause the material properties to differ in different directions. Additive manufacturing technology has better performance of structural materials in the upward stacking direction.

[0006] However, the crystal phase and organization / mechanical properties in the direction perpendicular to the stacking direction are poor, which affects the life and use of the interface cone. In addition, additive manufacturing technology is prone to unmelted powder particles inside the material, and there are pores inside, which will volatilize gas in a vacuum environment, affecting the performance of the instrument. Therefore, it is obvious that the composite interface cone prepared by additive manufacturing technology is difficult to meet the use requirements.

[0007] In view of this, this application is hereby filed. Summary of the invention

[0008] The technical problem to be solved by the present invention is that the composite material interface cone prepared by additive manufacturing technology has poor crystal phase and organization / mechanical properties in the direction perpendicular to the stacking direction, which affects the life and use of the interface cone. Unmelted powder particles are easily present inside the material, and there are pores inside, which causes the interface cone to volatilize gas in a vacuum environment. The purpose is to provide a composite material cone structure based on hot isostatic pressing and a preparation method thereof. The composite material cone structure is split into multiple components, and then the hot isostatic pressing process is used to achieve fusion between different material components to form an overall molding structure. This can ensure the consistency of the mechanical properties of the composite material of the cone structure in all directions and improve the degree of densification inside the material.

[0009] The present invention is achieved through the following technical solutions:

[0010] In a first aspect, the present invention provides a method for preparing a composite material cone structure based on hot isostatic pressing, comprising the following steps:

[0011] (1) Processing the components of the composite cone structure separately;

[0012] (2) Assembling the component parts from top to bottom in sequence to form a column assembly;

[0013] (3) placing the column assembly in a hot isostatic pressing device and performing interface fusion;

[0014] (4) According to the shape and size of the composite cone structure, the excess is removed by machining.

[0015] The present invention forms an integral molding structure by splitting the composite material cone structure into multiple components and then using a hot isostatic pressing process to fuse the different material components. This ensures the consistency of the mechanical properties of the composite material of the cone structure in all directions and improves the densification degree inside the material.

[0016] The composite cone structure involved in the present invention takes the interface cone as an example. Since pure nickel materials and the like are suitable as the high-temperature resistant materials at the tip of the interface cone, and pure copper materials are suitable as the cone-base thermal conductive materials of the interface cone, using different materials at different parts of the interface cone can greatly improve the performance of the interface cone. However, how to better combine the two materials at the two parts has become a difficult problem in the process. Generally, the relatively mature additive manufacturing technology can realize the preparation of composite structural components of various materials, but in the direction perpendicular to the additive stacking direction, the crystal phase and organization / mechanical properties of the material are poor, unmelted powder particles are prone to appear inside, and there are pores inside, so the interface cone cannot be used in a vacuum high-temperature environment.

[0017] Therefore, the present invention creatively decomposes the materials required for the composite cone structure into a plurality of component parts of different materials, which are then assembled into a columnar assembly that matches the distribution of the composite materials of the interface cone, and then fused through a hot isostatic pressing process to form an overall structure. This ensures that the mechanical properties of the material are consistent in all directions, thereby avoiding the situation where the mechanical properties in a certain direction are poor. At the same time, during the hot isostatic pressing process, there will be no powder particles. Even if there are pores inside the components, the pore gas can be fully discharged during the hot isostatic pressing fusion process, thereby ensuring the density inside the composite material.

[0018] In a specific embodiment, the component parts include a cone tip sheet (4), a cone base upper plate (5), a cone base inner core plate (6) and a cone base lower plate (7) which are assembled in sequence from top to bottom;

[0019] The cone base inner core plate (6) is a cone-shaped ring plate with a through hole in the center, and a ring edge extends from the bottom edge of the cone-shaped ring plate;

[0020] The cone base lower plate (7) is a cylindrical cone with a truncated cone-shaped protrusion at the center, the upper surface of the cone base lower plate (7) is completely matched with the inner surface of the cone base inner core plate (6), and the cone base inner core plate (6) is assembled on the cone base lower plate (7);

[0021] The cone-base upper plate (5) is of cylindrical structure, and a mounting groove is provided on the lower surface of the cone-base upper plate (5), and the cone-base inner core plate (6) and the cone-base lower plate (7) are mounted in the mounting groove;

[0022] The upper surface of the cone base upper plate (5) is also provided with a circular groove matching the shape of the cone tip sheet (4).

[0023] The present invention divides the composite cone structure into four components, the cone tip sheet is used as the material of the cone tip, the cone base upper plate and the cone base lower plate are used as the external cladding material of the cone base, and the cone base inner core plate is used as the internal core material of the cone base. The four components are assembled in the above-designed specific structure and then fused by hot isostatic pressing to form an integral structure. Finally, the position of the cone base inner core plate in the cone structure is confirmed first, and then based on this as a reference, the processing allowances on the top, bottom, left and right sides are removed according to the size design requirements of the cone structure, so that the composite cone part can be obtained.

[0024] In a specific embodiment, the component parts include a cone base upper plate (5), a cone base inner core plate (6) and a cone base lower plate (7) which are assembled in sequence from top to bottom;

[0025] The cone base inner core plate (6) is a cone-shaped ring plate with a through hole in the center, and a ring edge extends from the bottom edge of the cone-shaped ring plate;

[0026] The cone base lower plate (7) is a cylindrical cone with a truncated cone-shaped protrusion at the center, the upper surface of the cone base lower plate (7) is completely matched with the inner surface of the cone base inner core plate (6), and the cone base inner core plate (6) is assembled on the cone base lower plate (7);

[0027] The cone-base upper plate (5) is of cylindrical structure, and a mounting groove is provided on the lower surface of the cone-base upper plate (5), and the cone-base inner core plate (6) and the cone-base lower plate (7) are mounted in the mounting groove;

[0028] After the cone-base upper plate (5), cone-base inner core plate (6) and cone-base lower plate (7) are assembled and subjected to hot isostatic pressing, a cylindrical hole is machined at the center of the surface of the cone-base upper plate (5), and the cylindrical cone tip material is fused into the cylindrical hole by electron beam.

[0029] The present invention divides the composite cone structure into three components. The cone base is first formed by hot isostatic pressing, and then the material of the cone tip is melted into the cone base composite material by electron beam injection, and finally mechanical processing is performed. This process can design a cylindrical platinum material according to the size of the platinum tip of the final actual product to reduce the consumption of platinum material and reduce costs.

[0030] In a specific embodiment, the thickness of the cone-base inner core plate gradually decreases toward the inner diameter of the ring to form a cone-shaped structure.

[0031] The cone-base inner core plate of the present invention is designed to be thick outside and thin inside, which can avoid the inner core of the upper end of the cone-base inner core plate being exposed and fused with the material of the cone tip during hot isostatic pressing, thereby ensuring good coating of the inner core by the outer layer.

[0032] In a specific embodiment, the bottom surface of the cone base lower plate (7) is completely flush with the bottom surface of the cone base upper plate (5).

[0033] The component parts of the present invention form a standard cylindrical structure after being assembled, so that the forces between the various surfaces can be ensured to be sufficiently uniform during the hot isostatic pressing process, so that the various fusion interfaces are fully fused and the mechanical properties are guaranteed.

[0034] In a specific embodiment, the process conditions of the hot isostatic pressing are: the vacuum degree of the package is better than 2×10 - 3 Degassing under pa conditions, the temperature is 500℃~800℃, the applied pressure is 100Mpa~200Mpa, the insulation time is 3~6 hours, and the furnace is cooled.

[0035] In a specific embodiment, the cone-based inner core plate is made of copper or silver. In the present invention, the cone-based inner core plate can be made of copper or silver. Copper has excellent thermal conductivity and ductility. Silver is the material with the best thermal conductivity and also has good ductility. The thermal conductivity of pure copper is inferior to that of silver, but its economic efficiency is better than that of silver. Therefore, the specific material can be selected according to the usage scenario.

[0036] In a specific embodiment, the cone tip is made of platinum or its alloy material, or nickel or its alloy material. Nickel has excellent high temperature resistance and ductility, and platinum has a high melting point, good stability, and strong ductility, and can be used in an environment requiring extremely high temperatures. Therefore, both nickel and platinum can be selected as the material of the cone tip.

[0037] In a specific embodiment, the cone base upper plate and the cone base lower plate are made of nickel material or its alloy material, or copper material or its alloy material. The nickel selected in the present invention has excellent high temperature resistance and ductility, so the use of nickel on the outside of the cone base can protect the thermal conductive material inside it and can be used in an extremely high temperature environment; or when the use environment does not require extreme high temperature resistance, the outside of the cone base can also be made of copper material to further improve the thermal conductivity of the cone base.

[0038] In a second aspect, the present invention provides a composite material cone structure based on hot isostatic pressing, which is prepared by using the composite material cone structure preparation method.

[0039] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0040] 1. A composite cone structure based on hot isostatic pressing and a preparation method thereof provided in an embodiment of the present invention, by splitting the composite cone structure into multiple components, and then using a hot isostatic pressing process to fuse different material components to form an integral molding structure, it is possible to ensure the consistency of mechanical properties of the composite material of the cone structure in all directions and improve the degree of densification inside the material;

[0041] 2. A composite material cone structure based on hot isostatic pressing and a preparation method thereof provided by an embodiment of the present invention does not have powder particles during the hot isostatic pressing process. Even if there are pores inside each component, the pore gas can be fully discharged during the diffusion welding fusion process to ensure the density inside the composite material.

[0042] 3. An embodiment of the present invention provides a composite cone structure based on hot isostatic pressing and a preparation method thereof. The cone base inner core plate is designed to be thick on the outside and thin on the inside, which can avoid the inner core of the upper end of the cone base inner core plate being exposed and the material of the cone tip being fused during the hot isostatic pressing process, thereby ensuring good coating of the inner core by the outer layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0044] Figure 1 A schematic diagram of a composite cone structure provided by an embodiment of the present invention;

[0045] Figure 2 A cross-sectional view of a composite cone structure provided by an embodiment of the present invention;

[0046] Figure 3 A schematic diagram of the structure of the components provided in the embodiment of the present invention;

[0047] Figure 4 A cross-sectional view of the structural assembly of the components provided in the embodiment of the present invention;

[0048] Figure 5 A morphology diagram of the nickel-copper fusion interface of the composite material vertebral structure after hot isostatic pressing process provided by an embodiment of the present invention;

[0049] Figure 6 This is an EDS line scan of the nickel-copper fusion interface of the composite material vertebral structure after hot isostatic pressing process provided by an embodiment of the present invention;

[0050] Figure 7This is a C-scan diagram of the welding rate of the nickel-copper fusion interface of the composite material vertebral structure after hot isostatic pressing process provided by an embodiment of the present invention.

[0051] Reference numerals and corresponding parts names:

[0052] 1-cone tip, 2-cone base outer layer, 3-cone base inner core, 4-cone tip sheet, 5-cone base upper plate, 6-cone base inner core plate, 7-cone base lower plate, 8-profile punch, 9-fixed platform, 10-composite material cone blank structure. DETAILED DESCRIPTION

[0053] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with embodiments and drawings. The exemplary embodiments of the present invention and their description are only used to explain the present invention and are not intended to limit the present invention.

[0054] In the following description, a large number of specific details are set forth in order to provide a thorough understanding of the present invention. However, it is apparent to those of ordinary skill in the art that these specific details do not have to be employed to practice the present invention. In other embodiments, in order to avoid confusing the present invention, well-known structures are not specifically described.

[0055] Throughout the specification, references to "one embodiment," "an embodiment," "an example," or "an example" mean that a particular feature, structure, or characteristic described in conjunction with the embodiment or example is included in at least one embodiment of the present invention. Therefore, the phrases "one embodiment," "an embodiment," "an example," or "an example" appearing in various places throughout the specification do not necessarily all refer to the same embodiment or example. In addition, particular features, structures, or characteristics may be combined in one or more embodiments or examples in any suitable combination and / or sub-combination. In addition, it will be appreciated by those of ordinary skill in the art that the figures provided herein are for illustrative purposes and that the figures are not necessarily drawn to scale. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0056] In the description of the present invention, the directions or positional relationships indicated by terms such as “front”, “rear”, “left”, “right”, “up”, “down”, “vertical”, “horizontal”, “high”, “low”, “inside” and “outside” 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. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limiting the scope of protection of the present invention.

[0057] Example 1

[0058] The composite cone structure involved in the present invention takes the interface cone as an example. Since pure nickel materials and the like are suitable as the high-temperature resistant materials at the tip of the interface cone, and pure copper materials are suitable as the cone-base thermal conductive materials of the interface cone, using different materials at different parts of the interface cone can greatly improve the performance of the interface cone. However, how to better combine the two materials at the two parts has become a difficult problem in the process. Generally, the relatively mature additive manufacturing technology can realize the preparation of composite structural components of various materials, but in the direction perpendicular to the additive stacking direction, the crystal phase and organization / mechanical properties of the material are poor, unmelted powder particles are prone to appear inside, and there are pores inside, so the interface cone cannot be used in a vacuum high-temperature environment.

[0059] Therefore, in order to solve the above technical problems:

[0060] First, as Figure 1 to Figure 4 As shown, the present invention provides a method for preparing a composite material cone structure based on hot isostatic pressing, comprising the following steps:

[0061] The steps include:

[0062] (1) Processing the components of the composite cone structure separately;

[0063] (2) Assembling the component parts from top to bottom in sequence to form a column assembly;

[0064] (3) placing the column assembly in a hot isostatic pressing device and performing interface fusion;

[0065] (4) According to the shape and size of the composite cone structure, the excess is removed by machining.

[0066] The present invention forms an integral molding structure by splitting the composite material cone structure into multiple components and then using a hot isostatic pressing process to fuse the different material components. This ensures the consistency of the mechanical properties of the composite material of the cone structure in all directions and improves the densification degree inside the material.

[0067] The composite cone structure involved in the present invention takes the interface cone as an example. Since pure nickel materials and the like are suitable as the high-temperature resistant materials at the tip of the interface cone, and pure copper materials are suitable as the cone-base thermal conductive materials of the interface cone, using different materials at different parts of the interface cone can greatly improve the performance of the interface cone. However, how to better combine the two materials at the two parts has become a difficult problem in the process. Generally, the relatively mature additive manufacturing technology can realize the preparation of composite structural components of various materials, but in the direction perpendicular to the additive stacking direction, the crystal phase and organization / mechanical properties of the material are poor, unmelted powder particles are prone to appear inside, and there are pores inside, so the interface cone cannot be used in a vacuum high-temperature environment.

[0068] Therefore, the present invention creatively decomposes the materials required for the composite cone structure into a plurality of component parts of different materials, which are then assembled into a columnar assembly that matches the distribution of the composite materials of the interface cone, and then fused through a hot isostatic pressing process to form an overall structure. This ensures that the mechanical properties of the material are consistent in all directions, thereby avoiding the situation where the mechanical properties in a certain direction are poor. At the same time, during the hot isostatic pressing process, there will be no powder particles. Even if there are pores inside the components, the pore gas can be fully discharged during the hot isostatic pressing fusion process, thereby ensuring the density inside the composite material.

[0069] In a specific embodiment, the component parts include a cone tip sheet (4), a cone base upper plate (5), a cone base inner core plate (6) and a cone base lower plate (7) which are assembled in sequence from top to bottom;

[0070] The cone base inner core plate (6) is a cone-shaped ring plate with a through hole in the center, and a ring edge extends from the bottom edge of the cone-shaped ring plate;

[0071] The cone base lower plate (7) is a cylindrical cone with a truncated cone-shaped protrusion at the center, the upper surface of the cone base lower plate (7) is completely matched with the inner surface of the cone base inner core plate (6), and the cone base inner core plate (6) is assembled on the cone base lower plate (7);

[0072] The cone-base upper plate (5) is of cylindrical structure, and a mounting groove is provided on the lower surface of the cone-base upper plate (5), and the cone-base inner core plate (6) and the cone-base lower plate (7) are mounted in the mounting groove;

[0073] The upper surface of the cone base upper plate (5) is also provided with a circular groove matching the shape of the cone tip sheet (4).

[0074] The present invention divides the composite material cone structure into four components, the cone tip sheet is used as the material of the cone tip, the cone base upper plate and the cone base lower plate are used as the external cladding material of the cone base, and the cone base inner core plate is used as the internal core material of the cone base. The four components are assembled in the above-designed specific structure and then fused by hot isostatic pressing to form an integral structure. Finally, the position of the cone base inner core plate in the cone structure is confirmed, and then based on this as a reference, the processing allowances on the top, bottom, left and right sides are removed according to the size design requirements of the cone structure, so that the composite material cone part can be obtained.

[0075] In a specific embodiment, the component parts include a cone base upper plate (5), a cone base inner core plate (6) and a cone base lower plate (7) which are assembled in sequence from top to bottom;

[0076] The cone base inner core plate (6) is a cone-shaped ring plate with a through hole in the center, and a ring edge extends from the bottom edge of the cone-shaped ring plate;

[0077] The cone base lower plate (7) is a cylindrical cone with a truncated cone-shaped protrusion at the center, the upper surface of the cone base lower plate (7) is completely matched with the inner surface of the cone base inner core plate (6), and the cone base inner core plate (6) is assembled on the cone base lower plate (7);

[0078] The cone-base upper plate (5) is of cylindrical structure, and a mounting groove is provided on the lower surface of the cone-base upper plate (5), and the cone-base inner core plate (6) and the cone-base lower plate (7) are mounted in the mounting groove;

[0079] After the cone-base upper plate (5), cone-base inner core plate (6) and cone-base lower plate (7) are assembled and subjected to hot isostatic pressing, a cylindrical hole is machined at the center of the surface of the cone-base upper plate (5), and the cylindrical cone tip material is fused into the cylindrical hole by electron beam.

[0080] The present invention divides the composite cone structure into three components. The cone base is first formed by hot isostatic pressing, and then the material of the cone tip is melted into the cone base composite material by electron beam injection, and finally mechanical processing is performed. This process can design a cylindrical platinum material according to the size of the platinum tip of the final actual product to reduce the consumption of platinum material and reduce costs.

[0081] In a specific embodiment, the thickness of the cone-base inner core plate gradually decreases toward the inner diameter of the ring to form a cone-shaped structure.

[0082] The cone-base inner core plate of the present invention is designed to be thick outside and thin inside, which can avoid the inner core of the upper end of the cone-base inner core plate being exposed and fused with the material of the cone tip during hot isostatic pressing, thereby ensuring good coating of the inner core by the outer layer.

[0083] In a specific embodiment, the bottom surface of the cone base lower plate (7) is completely flush with the bottom surface of the cone base upper plate (5).

[0084] The component parts of the present invention form a standard cylindrical structure after being assembled, so that the forces between the various surfaces can be ensured to be sufficiently uniform during the hot isostatic pressing process, so that the various fusion interfaces are fully fused and the mechanical properties are guaranteed.

[0085] In a specific embodiment, the process conditions of the hot isostatic pressing are: the vacuum degree of the package is better than 2×10 - 3 Degassing under pa conditions, the temperature is 500℃~800℃, the applied pressure is 100Mpa~200Mpa, the insulation time is 3~6 hours, and the furnace is cooled.

[0086] In a specific embodiment, the cone-based inner core plate is made of copper or silver. In the present invention, the cone-based inner core plate can be made of copper or silver. Copper has excellent thermal conductivity and ductility. Silver is the material with the best thermal conductivity and also has good ductility. The thermal conductivity of pure copper is inferior to that of silver, but its economic efficiency is better than that of silver. Therefore, the specific material can be selected according to the usage scenario.

[0087] In a specific embodiment, the cone tip is made of platinum or its alloy material, or nickel or its alloy material. Nickel has excellent high temperature resistance and ductility, and platinum has a high melting point, good stability, and strong ductility, and can be used in an environment requiring extremely high temperatures. Therefore, both nickel and platinum can be selected as the material of the cone tip.

[0088] In a specific embodiment, the cone base upper plate and the cone base lower plate are made of nickel material or its alloy material, or copper material or its alloy material. The nickel selected in the present invention has excellent high temperature resistance and ductility, so the use of nickel on the outside of the cone base can protect the thermal conductive material inside it and can be used in an extremely high temperature environment; or when the use environment does not require extreme high temperature resistance, the outside of the cone base can also be made of copper material to further improve the thermal conductivity of the cone base.

[0089] In a second aspect, the present invention provides a composite material cone structure based on hot isostatic pressing, which is prepared by using the composite material cone structure preparation method.

[0090] Example 2

[0091] The embodiment of the present invention provides a composite material cone structure based on hot isostatic pressing, which is prepared by the preparation method described in Example 1, wherein:

[0092] The cone tip is made of platinum, with a diameter of 6-10mm, a thickness of 2.5-4mm, and a dimensional accuracy of 0.04mm.

[0093] The cone base upper plate adopts nickel upper layer, with outer diameter controlled at 53mm-55mm, total height controlled at 14-18mm, dimensional accuracy controlled at 0.04mm, and angle accuracy controlled at ±0.05°;

[0094] The cone base inner core plate is made of copper sheet, with an outer diameter controlled at 46mm-48mm, a thickness controlled at 1mm-1.5mm, a dimensional accuracy controlled at 0.04mm, and an angle accuracy controlled at ±0.05°.

[0095] The cone base lower plate adopts a nickel lower layer, the outer diameter is controlled at 46mm-48mm, the thickness is controlled at 2.5mm-3.5mm, the dimensional accuracy is controlled at 0.04mm, and the angle accuracy is controlled at ±0.05°.

[0096] After assembling the parts together, hot isostatic pressing is performed: the vacuum degree of the package is better than 2×10 -3 Degassing under 100Mpa to 200Mpa conditions, with a temperature between 500°C and 800°C, an applied pressure of 100Mpa to 200Mpa, and a holding time of 3 to 6 hours, followed by furnace cooling, can obtain a nickel / copper / platinum composite material cone blank structure 10, and then machining to precise dimensions to obtain a nickel / copper / platinum composite material interface cone.

[0097] Example 3

[0098] The embodiment of the present invention provides a composite material cone structure based on hot isostatic pressing, which is prepared by the preparation method described in Example 1, wherein:

[0099] The cone tip and cone base upper plate are both made of nickel. The two are integral structures, with an outer diameter of 53mm-55mm, a total height of 14-18mm, a dimensional accuracy of 0.04mm, and an angle accuracy of ±0.05°.

[0100] The cone base inner core plate is made of copper sheet, with an outer diameter controlled at 46mm-48mm, a thickness controlled at 1mm-1.5mm, a dimensional accuracy controlled at 0.04mm, and an angle accuracy controlled at ±0.05°.

[0101] The cone base lower plate adopts a nickel lower layer, the outer diameter is controlled at 46mm-48mm, the thickness is controlled at 2.5mm-3.5mm, the dimensional accuracy is controlled at 0.04mm, and the angle accuracy is controlled at ±0.05°.

[0102] After assembling the parts together, hot isostatic pressing is performed: the vacuum degree of the package is better than 2×10 -3 Degassing under 100Mpa to 200Mpa conditions, with a temperature between 500°C and 800°C, an applied pressure of 100Mpa to 200Mpa, and a holding time of 3 to 6 hours, followed by furnace cooling, can obtain a nickel / copper composite material cone blank structure 10, and then machining to precise dimensions to obtain a nickel / copper composite material interface cone.

[0103] Example 4

[0104] The embodiment of the present invention provides a composite material cone structure based on hot isostatic pressing, which is prepared by the preparation method described in Example 1, wherein:

[0105] The cone tip is made of platinum, with a diameter of 6-10mm, a thickness of 2.5-4mm, and a dimensional accuracy of 0.04mm.

[0106] The cone base upper plate adopts nickel upper layer, with outer diameter controlled at 53mm-55mm, total height controlled at 14-18mm, dimensional accuracy controlled at 0.04mm, and angle accuracy controlled at ±0.05°;

[0107] The cone base inner core plate is made of silver sheet, with an outer diameter controlled at 46mm-48mm, a thickness controlled at 1mm-1.5mm, a dimensional accuracy controlled at 0.04mm, and an angle accuracy controlled at ±0.05°.

[0108] The cone base lower plate adopts a nickel lower layer, the outer diameter is controlled at 46mm-48mm, the thickness is controlled at 2.5mm-3.5mm, the dimensional accuracy is controlled at 0.04mm, and the angle accuracy is controlled at ±0.05°.

[0109] After assembling the parts together, hot isostatic pressing is performed: the vacuum degree of the package is better than 2×10 -3 Degassing under 100Mpa to 200Mpa conditions, with a temperature between 500°C and 800°C, an applied pressure of 100Mpa to 200Mpa, and a holding time of 3 to 6 hours, followed by furnace cooling, can obtain a nickel / silver / platinum composite material cone blank structure 10, and then machining to precise dimensions to obtain a nickel / silver / platinum composite material interface cone.

[0110] Example 5

[0111] The embodiment of the present invention provides a composite material cone structure based on hot isostatic pressing, which is prepared by the preparation method described in Example 1, wherein:

[0112] The cone tip and cone base upper plate are both made of nickel. The two are integral structures, with an outer diameter controlled at 53mm-55mm, a total height controlled at 14-18mm, a dimensional accuracy controlled at 0.04mm, and an angle accuracy controlled at ±0.05°;

[0113] The cone base inner core plate is made of silver sheet, with an outer diameter controlled at 46mm-48mm, a thickness controlled at 1mm-1.5mm, a dimensional accuracy controlled at 0.04mm, and an angle accuracy controlled at ±0.05°.

[0114] The cone base lower plate adopts a nickel lower layer, the outer diameter is controlled at 46mm-48mm, the thickness is controlled at 2.5mm-3.5mm, the dimensional accuracy is controlled at 0.04mm, and the angle accuracy is controlled at ±0.05°.

[0115] After assembling the parts together, hot isostatic pressing is performed: the vacuum degree of the package is better than 2×10 -3 Degassing under 100Mpa to 200Mpa conditions, with a temperature between 500°C and 800°C, an applied pressure of 100Mpa to 200Mpa, and a holding time of 3 to 6 hours, followed by furnace cooling, can obtain a nickel / silver composite material cone blank structure 10, and then machining to precise dimensions to obtain a nickel / silver composite material interface cone.

[0116] Example 6

[0117] The embodiment of the present invention provides a composite material cone structure based on hot isostatic pressing, which is prepared by the preparation method described in Example 1, wherein:

[0118] The upper plate of the cone base is made of nickel, with an outer diameter of 53mm-55mm, a total height of 14-18mm, a dimensional accuracy of 0.04mm, and an angle accuracy of ±0.05°;

[0119] The cone base inner core plate is made of copper sheet, with an outer diameter controlled at 46mm-48mm, a thickness controlled at 1mm-1.5mm, a dimensional accuracy controlled at 0.04mm, and an angle accuracy controlled at ±0.05°.

[0120] The cone base lower plate adopts a nickel lower layer, the outer diameter is controlled at 46mm-48mm, the thickness is controlled at 2.5mm-3.5mm, the dimensional accuracy is controlled at 0.04mm, and the angle accuracy is controlled at ±0.05°.

[0121] After assembling the parts together, hot isostatic pressing is performed: the vacuum degree of the package is better than 2×10 -3 Degassing under 1500-200 MPa conditions, the temperature is between 500℃ and 800℃, the pressure is 100Mpa to 200Mpa, the insulation time is 3 to 6 hours, and the nickel / copper cone base blank is obtained by cooling with the furnace. A cylindrical hole of 6-10mm is processed on the upper end surface of the cone base blank (the center position of the original cone tip), the thickness is controlled at 2.5-4mm, and the dimensional accuracy is controlled at 0.04mm. The matching cylindrical platinum material is fused into the cylindrical hole by electron beam. The outer diameter of the matching cylindrical platinum material is 6-10mm, the thickness is controlled at 2.5-4mm, and the dimensional accuracy is controlled at 0.04mm. The nickel / copper / platinum composite material interface cone can be obtained by machining the precise size.

[0122] Example 7

[0123] The embodiment of the present invention provides a composite material cone structure based on hot isostatic pressing, which is prepared by the preparation method described in Example 1, wherein:

[0124] The upper plate of the cone base is made of nickel, with an outer diameter of 53mm-55mm, a total height of 14-18mm, a dimensional accuracy of 0.04mm, and an angle accuracy of ±0.05°;

[0125] The cone base inner core plate is made of silver sheet, with an outer diameter controlled at 46mm-48mm, a thickness controlled at 1mm-1.5mm, a dimensional accuracy controlled at 0.04mm, and an angle accuracy controlled at ±0.05°.

[0126] The cone base lower plate adopts a nickel lower layer, the outer diameter is controlled at 46mm-48mm, the thickness is controlled at 2.5mm-3.5mm, the dimensional accuracy is controlled at 0.04mm, and the angle accuracy is controlled at ±0.05°.

[0127] After assembling the parts together, hot isostatic pressing is performed: the vacuum degree of the package is better than 2×10 -3 Degassing under 1500-200 MPa conditions, temperature between 500-800 ° C, pressure of 100-200 MPa, holding time of 3-6 hours, cooling with the furnace, you can get the nickel / silver cone base blank, the upper end face of the cone base blank (the center position of the original cone tip) is processed with a cylindrical hole of 6-10 mm, the thickness is controlled at 2.5-4 mm, the dimensional accuracy is controlled at 0.04 mm, the matching cylindrical platinum material is fused into the cylindrical hole by electron beam, the outer diameter of the matching cylindrical platinum material is 6-10 mm, the thickness is controlled at 2.5-4 mm, the dimensional accuracy is controlled at 0.04 mm, and the nickel / silver / platinum composite material interface cone is obtained by machining the precise size.

[0128] The prepared interface cones were subjected to corresponding tests. Figure 5 The nickel-copper fusion interface morphology (100× (left), 200× (right)), Figure 6 This is the EDS line scan of the nickel-copper fusion interface; it is clearly visible that the nickel-copper interface is tightly bonded without visible defects; the mutual diffusion depth of Ni and Cu elements is about 5μm.

[0129] Figure 7 This is a C-scan diagram of the welding rate of the nickel-copper fusion interface. After C-scan ultrasonic testing, the reflection wave height at the copper-nickel weld is less than 10%, and the welding rate is 100%, indicating that nickel and copper have achieved a tight diffusion connection under the hot isostatic pressing process. Through mutual diffusion, the performance of the material is improved, and it has better overall structural performance than additive manufacturing technology. The overall solution is highly feasible and suitable for mass production.

[0130] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A method for preparing a composite material cone structure based on hot isostatic pressing, characterized in that: The steps include: (1) Processing the components of the composite cone structure separately; (2) Assembling the component parts from top to bottom in sequence to form a column assembly; (3) placing the column assembly in a hot isostatic pressing device and performing interface fusion; (4) According to the shape and size of the composite cone structure, the excess is removed by machining.

2. The method for preparing a composite material cone structure based on hot isostatic pressing according to claim 1, characterized in that: The component parts include a cone tip sheet (4), a cone base upper plate (5), a cone base inner core plate (6) and a cone base lower plate (7) which are assembled in sequence from top to bottom; The cone base inner core plate (6) is a cone-shaped ring plate with a through hole in the center, and a ring edge extends from the bottom edge of the cone-shaped ring plate; The cone base lower plate (7) is a cylindrical cone with a truncated cone-shaped protrusion at the center, the upper surface of the cone base lower plate (7) is completely matched with the inner surface of the cone base inner core plate (6), and the cone base inner core plate (6) is assembled on the cone base lower plate (7); The cone-base upper plate (5) is of cylindrical structure, and a mounting groove is provided on the lower surface of the cone-base upper plate (5), and the cone-base inner core plate (6) and the cone-base lower plate (7) are mounted in the mounting groove; The upper surface of the cone base upper plate (5) is also provided with a circular groove matching the shape of the cone tip sheet (4).

3. The method for preparing a composite material cone structure based on hot isostatic pressing according to claim 1, characterized in that: The component parts include a cone base upper plate (5), a cone base inner core plate (6) and a cone base lower plate (7) which are assembled in sequence from top to bottom; The cone base inner core plate (6) is a cone-shaped ring plate with a through hole in the center, and a ring edge extends from the bottom edge of the cone-shaped ring plate; The cone base lower plate (7) is a cylindrical cone with a truncated cone-shaped protrusion at the center, the upper surface of the cone base lower plate (7) is completely matched with the inner surface of the cone base inner core plate (6), and the cone base inner core plate (6) is assembled on the cone base lower plate (7); The cone-base upper plate (5) is of cylindrical structure, and a mounting groove is provided on the lower surface of the cone-base upper plate (5), and the cone-base inner core plate (6) and the cone-base lower plate (7) are mounted in the mounting groove; After the cone-base upper plate (5), cone-base inner core plate (6) and cone-base lower plate (7) are assembled and subjected to hot isostatic pressing, a cylindrical hole is machined at the center of the surface of the cone-base upper plate (5), and the cylindrical cone tip material is fused into the cylindrical hole by electron beam.

4. The method for preparing a composite material cone structure based on hot isostatic pressing according to claim 2, characterized in that: The thickness of the cone-based inner core plate (6) gradually decreases towards the inner diameter of the ring to form a cone-shaped structure.

5. The method for preparing a composite material cone structure based on hot isostatic pressing according to claim 2, characterized in that: The bottom surface of the cone base lower plate (7) is completely flush with the bottom surface of the cone base upper plate (5).

6. The method for preparing a composite material cone structure based on hot isostatic pressing according to claim 1, characterized in that: The process conditions of the hot isostatic pressing are: the vacuum degree of the package is better than 2×10 -3 Degassing under pa conditions, the temperature is 500℃~800℃, the applied pressure is 100Mpa~200Mpa, the insulation time is 3~6 hours, and the furnace is cooled.

7. The method for preparing a composite material cone structure based on hot isostatic pressing according to claim 2, characterized in that: The cone-base inner core plate (6) is made of copper or silver.

8. The method for preparing a composite material cone structure based on hot isostatic pressing according to claim 2, characterized in that: The cone tip sheet (4) is made of platinum material or its alloy material, or nickel material or its alloy material.

9. The method for preparing a composite material cone structure based on hot isostatic pressing according to claim 2, characterized in that: The cone base upper plate (5) and the cone base lower plate (7) are made of nickel material or its alloy material, or copper material or its alloy material.

10. A composite pyramid structure based on hot isostatic pressing, characterized in that: The composite material cone structure is prepared by the preparation method of any one of claims 1 to 9.

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