Ultra-thin metal sheet, ultra-thin metal sheet pipe, and processing device

Abstract

An ultra-thin metal sheet comprising a sheet body, wherein : the sheet body includes a first portion and a second portion, the first portion having a greater thickness than the second portion, and a third portion being set between the first portion and the second portion, the third portion has an uneven thickness, and the thickness of the third portion being gradually changing from its end connected to the first portion to its end connected to the second portion . The ultra-thin metal sheet in this application features irregular shapes and non-uniform thickness, its unique in China's domestic market . The ultra-thin metal tubes revolutionize traditional manufacturing processes by eliminating the need for stretching treatment. This innovation overcomes technical limitations of conventional stretching methods while avoiding their inherent constraints in producing ultra-thin metal tubes. Unlike conventional stretching techniques that cause material deformation in the stretching direction, the The ultra-thin metal tube maintain structural integrity and exhibit exceptional resistance to breakage.

Description

TECHNICAL FIELD

[0001] The present invention relates to the field of ultra-thin metal sheets, and particularly relates to An ultra-thin metal sheet, an ultra-thin metal tube and an ultra-thin metal sheet processing device.Description of the Related Art

[0002] Traditional processes involving steel often feature "thickness, toughness, and heaviness", but in order to adapt to high-precision and advanced industries,the field of ultra-thin metal sheet technology is a hotly contested field for relevant enterprises. Ultra-thin metal sheets typically refer to ultra-thin precision strip steel, which differs from the thickness of conventional stainless steel sheets. Generally, stainless steel strip steel with a thickness of ≤0.3mm, or even as thin as 0.01mm, is referred to as ultra-thin precision strip steel. It belongs to the field of precision stainless steel, and the definition of "ultra-thin" for ultra-thin metal sheets is similar to this.

[0003] In the field of ultra-thin materials, the development of China's high-end industries has been constrained by layer upon layer of technical barriers. However, according to the CCTV program "Powerhouse of China", China Baowu Steel Group has broken through technical barriers, reducing the thickness of 600mm stainless steel precision foil to 0.02mm, and then further rolling it down to the limit of 0.015mm. However, the stainless steel sheets obtained after processing through the aforementioned rolling process still have a uniform thickness. The technology for processing and obtaining irregular ultra-thin sheets with uneven thickness and for manufacturing tubes from them remains a blank in China.

[0004] Due to the extremely thin thickness of ultra-thin metal sheets, it is quite challenging to process them into irregularly shaped sheets with uneven thickness and to use them to manufacture tubes.For example, the traditional metal tube manufacturing process involves cutting stainless steel sheets to the required width ,and then subjecting them to rounding and welding by tube-making equipment. Metal tubes produced through this traditional process are generally thicker, with the smallest diameter being around 2.00mm-4.00mm.On this basis, if one wants to obtain a metal tube with a thinner diameter, it is necessary to subject the metal tube to multiple stretching processes. During the stretching process, the diameter of the metal tube will become thinner, and the wall thickness of the metal tube will decrease. However, the difficulty of each stretch is related to the ratio of the metal tube's wall thickness after the stretch to that before it. After several stretches, the difficulty of stretching the metal tube increases, and this increase follows an exponential pattern. Additionally, the metal tube is prone to breaking during stretching, making it impossible to produce an ultra-thin metal tube with significant strength.

[0005] In addition, the Chinese patent with the publication number CN219052473U is a production line for ultra fine seamless metal tubes applied by the applicant on May 13, 2022,and the production line Including: material rack, feeding mechanism, first positioning mechanism, preloading mechanism, second positioning mechanism, forming mechanism, third positioning mechanism, welding mechanism, to produce seamless metal pipes,the seamless metal tube is produced using rolled metal sheets as raw materials. The ultra-thin metal sheet has an irregular shape. The thinnest end of the metal sheet is not less than 0.02mm and not more than 0.3mm, and the thickest end is not less than 0.05mm and not more than 0.5mm. There is a uniform thickness transition between the thickest and thinnest ends,therefore, the precision requirements for processing equipment are high, and it has not yet been produced in China. Although some countries are able to produce irregularly shaped metal sheets, their production processes are not publicly available.

[0006] Therefore, the ultra-thin metal sheet processing equipment in existing technology still needs improvement.SUMMARY OF INVENTION

[0007] In response to the aforementioned technical defects, this application provides an ultra-thin metal sheet and ultra-thin metal tube.

[0008] It is therefore the objective of this invention to provide: An ultra-thin metal sheet comprising a sheet body, witch includes a first portion and a second portion, the first portion having a greater thickness than the second portion, and a third portion being set between the first portion and the second portion, the third portion has an uneven thickness, and the thickness of the third portion being gradually changing from its end connected to the first portion to its end connected to the second portion .

[0009] It is another objective of this invention, the thickness of the first portion is uniform, the thickness of the second portion is uniform, and the bottom surfaces of the first portion, the second portion and the third portion are co-planar.

[0010] In a form shown, the thickness of the first portion is 0.05mm~0.5mm.

[0011] In a form shown, the thickness of the second portion is 0.01mm~0.3mm.

[0012] In a form shown, the thickness of the second portion is 0.02mm~0.3mm.

[0013] In a form shown, the thickness of the second portion is 0.02∼0.2mm.

[0014] It is another objective of this invention, the upper surface of the third portion is a flat surface.

[0015] It is another objective of this invention, the upper surface of the third portion is an inwardly concave arc surface.

[0016] In a form shown,the sheet body includes two first portions, two second portions, and two third portions ; the two second portions are directly connected, the two third portions are symmetrically arranged on both sides of the second portions, and the two first portions are symmetrically arranged on both sides of the third portions.

[0017] The present invention provides an ultra-thin metal tube, wherein: the ultra-thin metal tube is formed with any one of the ultra-thin metal sheet , by being bent into a tubular shape in the direction of the bottom surface and then welded.

[0018] The ultra-thin metal sheet of this application scheme is irregular in shape and uneven in thickness, filling the gap in domestic irregular ultra-thin metal sheet and meeting the needs of high-end fields; The ultra-thin metal sheet tube of the present application scheme changes the traditional tube making process, eliminates the need for stretching the metal tube, overcomes the technical bias of ultra-thin metal sheet tube stretching and forming, and also overcomes the existing technical limitations of stretching and forming methods that cannot achieve ultra-thin metal sheet tubes; The ultra-thin metal sheet tube of the present application is not formed by stretching, and its material has not undergone internal changes in its extension direction. The ultra-thin metal sheet tube of the present application has sufficient strength and is not easily broken; The ultra-thin metal tube of this application is made of irregularly shaped ultra-thin metal sheets with uneven thickness. It forms a smaller contact surface at one end of the tube, which can achieve extremely high precision work. The smaller contact surface also represents higher strength output under the same conditions.

[0019] The present invention provides an ultra-thin metal sheet processing device,witch can be used for processing the ultra-thin metal sheet , with high precision.

[0020] An ultra-thin metal sheet processing device, comprising a machine platform, a processing machine and a mold are set on the machine platform, the mold is provided with a through slot extending along the left and right direction, the through slot is used for placing the sheet to be cut;The mold is provided with a U-shaped groove, and a processing window is provided on the U-shaped groove, and the processing window is provided near and communicates with the through slot ;The machining mechanism includes a tool drive mechanism and a tool, the tool is located in the U-shaped groove, and the tool is partially located in the processing window.

[0021] In a form shown, the mold comprises a pressing plate, a base plate, and a mold seat fixedly connected to the base plate, ,the mold seat is vertically arranged on the machine platform, the pressing plate is arranged on the front side of the base plate, the through slot is arranged on the front side wall of the base plate, and the U-shaped groove and the processing window are arranged on the pressing plate;The tool is vertically arranged in spindle or gourd shape,using the pressure plate to press the sheet, and use the tool to process the sheet.

[0022] In a form shown,the middle of the base plate is provided with a ventilation groove, the ventilation groove is located on the side of the through slot away from the tool, the ventilation groove is provided with a ventilation hole, the ventilation hole communicates with the through slot; It also includes a negative pressure device, the suction port of which is arranged at the ventilation slot.When the negative pressure device is started, the ventilation groove is evacuated and the sheet is sucked in through the ventilation hole to prevent offset occurs during the processing of the sheet.

[0023] In a form shown, the numbers of the U-shaped grooves and the ventilation grooves are both more than two.The processing machine can process sheets multiple times. In a form shown, the pressing plate is provided with an adjusting mechanism, which is used to adjust the gap between the pressing plate and the base plate, by adjusting the gap between the pressure plate and the base plate, it is convenient to process sheets of different thicknesses.

[0024] In a form shown,the adjusting mechanism includes a fixed plate, a movable plate and a hand-wheel;The fixed plate, movable plate and pressure plate are arranged from front to back in sequence;The hand-wheel is fixedly connected with a threaded adjustment column, and a nut is provided in the fixed plate, the threaded adjustment column is transmissionally connected with the nut, and the threaded adjustment column is rotatably connected with the movable plate,a spring is arranged between the movable plate and the pressing plate.

[0025] In a form shown, the pressing plate comprises a first pressing plate, a second pressing plate and a third pressing plate; the rear side wall of the first pressing plate, the rear side wall of the second pressing plate and the rear side wall of the third pressing plate are arranged from top to bottom in sequence; The first pressing plate, the second pressing plate and the third pressing plate are all slidingly matched with the threaded adjustment column, and the front end of the first pressing plate, the front end of the second pressing plate and the front side of the third pressing plate are all provided with a spring.

[0026] In a form shown,the mold comprises a pressing plate, a base plate, and a mold seat fixedly connected to the base plate, the mold seat is horizontally arranged on the machine platform, and the tool is horizontally arranged in spindle-shaped or gourd-shaped, the sheet can move horizontally and be cut by the processing machine. The effects of this application are as follows: The sheets passe through a through-slot equipped with a machining window, where the tool is installed. Due to the limitations of the machining window, it is easy to inspect the installation accuracy of the tool and control the distance between the tool and the sheets during installation. Simultaneously, the window's constraints and the mold's clamping effect on the sheet effectively prevent issues such as unstable fixation of ultra-thin metal sheets and material displacement caused by machining vibrations. This significantly improves machining precision and yield, enabling accurate cutting of metal sheets. The metal sheets described in this application can also be in the form of sheets stored in rolls.BRIEF DESCRIPTION OF THE FIGURES

[0027] The application will be described in more detail below with reference to the drawings and embodiments. FIG. 1 is a top view of the ultra-thin metal sheet of the present application; FIG. 2 is a cross-sectional view of an ultra-thin metal sheet in embodiment 1 of the present application; FIG. 3 is a cross-sectional view of the ultra-thin metal sheet tube of embodiment 3 of the present application; Figure 4 is a cross-sectional view of the ultra-thin metal sheet in embodiment 5 of the present application; Figure 5 is a cross-section of the ultra-thin metal sheet after pipe making in the fifth embodiment of the present application; Figure 6 is the cross-section of the product of the ultra-thin metal sheet in embodiment 5 of the present application; FIG. 7 is a cross-sectional view of the ultra-thin metal sheet in embodiment 6 of the present application; FIG. 8 is a cross-sectional view of the ultra-thin metal sheet after pipe making in embodiment 6 of the present application; FIG. 9 is a cross-sectional view of the final product of the ultra-thin metal sheet in embodiment 6 of the present application; Figure 10 is a front view of the ultra-thin metal sheet processing device; Figure 11 shows a close-up of section A in Figure 10; Figure 12 is a partial structural diagram of a ultra-thin metal sheet processing equipment; Figure 13 shows a close-up of section B in Figure 12. Figure 14 is a right view of an ultra-thin metal sheet processing device; Figure 15 is a front view of another embodiment of the ultra-thin metal sheet processing device of the present application; FIG. 16 is a schematic diagram of the tool of the present application in one embodiment ; FIG. 17 is a schematic diagram of another embodiment of the tool of the present application; FIG. 18 is a top view of the ultra-thin metal sheet processing device of the present application.

[0028] The diagram shows: 1-machine platform, 2-sheets, 3-processing machine, 30-tool, 4-mold, 41-through slot, 42-U-shaped groove, 421-processing window, 43-ventilation groove, 431-ventilation hole, 44-base plate, 45-pressure plate, 451-first pressure plate, 452-second pressure plate, 453-third pressure plate, 46-mold seat, 5-negative pressure device, 6-adjustment mechanism, 61-fixed plate, 62-movable plate, 63-handwheel, 64-spring, 65- threaded adjustment column.

[0029] In the drawings, the same parts are marked with the same reference numerals, and the drawings are not to scale.DETAILED DESCRIPTION

[0030] The technical solutions of the embodiments herein will be described in detail with reference to the accompanying drawings. It should be noted that the described embodiments constitute only a portion of the claimed solutions, not the complete set. Based on these embodiments, the general technical personnel in the relevant field. All other embodiments obtained by the skilled person without making creative labor fall within the scope of protection of the present application.The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly include one or more such features. In the description of this application, unless otherwise stated, "multiple" means two or more. Additionally, the specification and claims.In the 30th requirement, the symbol "and / or" indicates that at least one of the connected objects is included, while the character " / " typically represents an "or" relationship between the preceding and following objects.

[0031] In the description of the present application, it should be noted that unless otherwise expressly provided and limited, The terms "installation", "connected", and "connection" should be interpreted broadly. These may include fixed or detachable connections, as well as integrated configurations. The types of connections can range from mechanical to electrical, encompassing both direct and indirect connections through intermediaries, as well as internal interconnections between components. For those skilled in the art, these terms should be understood in the context of specific applications.

[0032] Explain the specific meaning of the above terms in the application.It should be understood that the term "one embodiment" mentioned throughout the specification refers to specific features, structures, or characteristics associated with the embodiments included in at least one embodiment of the present application. Therefore, the phrases "in one embodiment" or "in an embodiment" appearing throughout the specification do not necessarily refer to the same embodiment. Additionally, these specific features, structures, or characteristics may vary across different embodiments. can be combined in any suitable manner in one or more embodiments.

[0033] Unless otherwise stated, directional terms such as "up" and "down" are generally used to refer to the directions shown in the attached drawings.Example 1

[0034] This embodiment provides an ultra-thin metal sheet comprising a first portion 11 and a second portion 21 with uniform thickness, where the first portion 11 has greater thickness than the second portion 21. A third portion 31 with non-uniform thickness transitions between the first and second portions, exhibiting a gradual thickness variation from the first portion's end to the second portion's end. The bottom surfaces of the first portion 11, second portion 21, and third portion 31 are co-planar, as shown in Figure 1. As illustrated in Figure 2, the upper surface of the third portion 31 is flat. The thickness of the first portion 11 is 0.05mm~0.5mm.

[0035] Ultra-thin metal sheets of uniform thickness are processed into the irregular-shaped metal sheets described in this embodiment through the following steps: First, the metal sheet to be processed is clamped and fixed, then transported along a predetermined trajectory. Next, a specialized tool is rotated to perform cutting operations, forming the second section 21 and third section 31. While the maximum thickness limit for section 21 is 0.01mm~0.3mm, the optimal thickness for current market demands is preferably 0.02mm~0.3mm or 0.02mm~0.2mm.

[0036] The aforementioned process can be executed using ultra-thin metal sheet processing device, as illustrated in Figure 10. The system comprises a machine platform 1 equipped with a processing machine 3 and a mold 4. The mold seat 46 (not shown in Figure 10) is securely mounted on the machine platform 1. The mold 4 features a through slot 41 extending horizontally for positioning the sheets 2. A ventilation groove 43 is provided in the mold, with the suction port of the negative pressure device 5 positioned at this vent slot.

[0037] As shown in Figure 11, mold 4 features a U-shaped groove 42 with a machining window 421. The mold consists of a pressure plate 45 and a base plate44, and a mold seat 46 fixedly connected to the base plate 44, the mold seat 46 is vertically arranged on the machine platform 1, the pressure plate 45 is positioned on the front side of the base plate 44, which has a through-slot 41 on its front wall. Both the U-shaped groove 42 and machining window 421 are located on the pressure plate 45.

[0038] As shown in Figure 12, the adjustment mechanism 6 consists of a fixed plate 61, a movable plate 62, and a handwheel 63. The movable plate 62 is positioned in front of the pressure plate 45 at a certain distance from it. The fixed plate 61 is mounted on the front side of the movable plate 62. A threaded adjustment column 65 is fixedly connected to the handwheel 63. A nut is installed in the fixed plate 61, and the threaded adjustment column 65 is transmissionally connected to the nut. The threaded adjustment column 65 is rotatably connected to the movable plate 62. A spring 64 is installed between the movable plate 62 and the pressure plate 45.

[0039] As shown in Figure 13, the through slot 41 and ventilation groove 43 are positioned on the base plate 44. The U-shaped groove 42 is mounted on the pressure plate 45, located on the side of the through slot 41. The tool 30 is positioned within the U-shaped groove 42, with part of it embedded in the machining window 421. The ventilation groove 43 is situated on the side of the through slot 41 opposite the tool 30, featuring ventilation holes 431 that communicate with the through slot 41. The tool 30 is designed in a gourd-shaped or spindle-shaped configuration.

[0040] As shown in Figure 14, the pressure plate assembly 45 comprises three sequential plates: the first plate 451, second plate 452, and third plate 453, arranged vertically with their rear walls aligned from top to bottom. All plates are slidably mounted on the threaded adjustment column 65, while the front end of the first plate 451 and second plate 452 features springs 64, and front surface of the third plate 453 features a spring 64.

[0041] The ultra-thin metal sheet 2 is positioned in the through-slot 41. By adjusting the distance between the movable plate 62 and the fixed plate 61 via rotating the handwheel 63, the spacing between the movable plate 62 and the pressing plate 45 is modified. The pressing plate 45 ensures the metal sheet 2 maintains proper positioning and been compressed , and prevents it from detaching from the through-slot 41 and minimizing vibration; When the negative pressure device 5 activates, it creates negative pressure within the air passage 43, causing the metal sheet 2 to adhere to the air vent 431, this adhesion also assists in securing the metal sheet 2 in place ; The tool 30 extends into the U-shaped groove 42, partially passing through the processing window 421 to contact the metal sheet 2 for cutting. Through this process, irregularly shaped ultra-thin metal sheets with uneven thickness are successfully processed. Subsequent irregular processing procedures for similar metal sheets follow the same way, hence no further elaboration is provided here.Example 2

[0042] This embodiment provides another ultra-thin metal sheet. The difference between this embodiment and embodiment 1 is that the upper surface of the third part 31 is an inwardly concave arc surface.Example 3

[0043] This embodiment provides an ultra-thin metal tube comprising the ultra-thin metal sheet as shown in Embodiment 1. The metal sheet is bent into a tubular shape in the direction of the bottom surface and then welded as depicted in Figure 3. The bottom surface refers to the flat surface of the metal sheet, i.e., the unprocessed side.

[0044] The Chinese patent CN219052473U, disclosed by the applicant, outlines a production line for ultra-fine seamless metal tubes and the manufacturing process of irregular ultra-thin tubes, which will not be elaborated here. The ultra-thin metal tubes in this application are not formed through drawing processes, as their material properties remain unchanged in the direction of elongation. These tubes exhibit exceptional strength and are resistant to breakage.

[0045] The ultra-thin metal tube of the present application is made of an irregular ultra-thin metal sheet with uneven thickness. It forms a smaller contact surface at one end of the tube, which can complete a highly accurate work. The smaller contact surface also represents a higher strength output under the same conditions.Example 4

[0046] This embodiment provides an ultra-thin metal tube, which is different from embodiment 3 in that it is made of the ultra-thin metal sheet of embodiment 2.Example 5

[0047] This embodiment provides an ultra-thin metal sheet comprising two ultra-thin metal sheets of the first embodiment. The second sections 21 are directly connected, with two third sections 31 symmetrically arranged on both sides of the second sections 21. The first sections 11 are symmetrically positioned on both sides of the third sections 31, forming the ultra-thin metal sheet as shown in Figure 4. The sheet is manufactured in a single operation using the aforementioned processing equipment.

[0048] The ultra-thin metal tube made of the ultra-thin metal sheet of the present embodiment is shown in FIG. 5, and can be further cut to form the needle tube-shaped ultra-thin metal tube as shown in FIG. 6.Example 6

[0049] The difference between the present embodiment and embodiment 5 is that the two ultra-thin metal sheets included in the ultra-thin metal sheet of the present embodiment are the sheets shown in embodiment 2, as shown in FIG. 7.

[0050] The ultra-thin metal tube made of the ultra-thin metal sheet of the present embodiment is shown in FIG. 8, and can be further cut to form the needle tube-shaped ultra-thin metal tube shown in FIG. 9.

[0051] This application provides an ultra-thin metal sheet processing device. As shown in Figure 10, the machine platform 1 is equipped with a processing mechanism 3 and a mold 4, where the mold seat 46 of the mold 4 is fixedly installed on the machine platform 1. The mold 4 contains a through slot 41 extending along the left-right direction, designed to accommodate the sheets 2 for cutting. A ventilation groove 43 is centrally located in the mold 4, with the suction port of the negative pressure device 5 positioned at this ventilation groove 43.

[0052] As shown in Figure 11, the mold 4 is provided with a U-shaped groove 42, and the U-shaped groove 42 is provided with a machining window 421; As shown in Figure 18, the adjustment mechanism 6 consists of a fixed plate 61, a movable plate 62, and a handwheel 63. The movable plate 62 is positioned in front of the pressing plate 45 at a predetermined distance, while the fixed plate 61 is mounted on the front side of the movable plate 62. A threaded adjustment column 65 is securely attached to the handwheel 63. The fixed plate 61 contains a nut that engages with the threaded adjustment column 65, which is rotationally connected to the movable plate 62. A spring 64 is installed between the movable plate 62 and the pressing plate 45. As shown in Figure 13, the through slot 41 and ventilation groove 43 are positioned on the base plate 44. The U-shaped groove 42 is mounted on the pressure plate 45, located on the side of the through slot 41. The tool 30 is positioned within the U-shaped groove 42, with part of it embedded in the machining window 421. The ventilation groove 43 is situated on the side of the through slot 41 opposite the tool 30, featuring ventilation holes 431 that communicate with the through slot 41.

[0053] As shown in Figure 14, the pressure plate assembly 45 comprises three sequential plates: the first 451, second 452, and third 453 plates, arranged vertically with their rear walls aligned from top to bottom. All plates are slidably mounted on the threaded adjustment column 65, while the front end of the first plate 451 and second plate 452 features springs 64, and front surface of the third plate 453 features a spring 64. Referring to Figure 15, in this embodiment, the mold 4 is horizontally arranged on the machine 1.

[0054] Referring to Figure 16, the tool 30 is shaped like a gourd.

[0055] Referring to Figure 17, the tool 30 is spindle-shaped.effect :

[0056] Sheet 2 is positioned in the through-slot 41. By rotating the handwheel 63, the distance between the movable plate 62 and the fixed plate 62 is adjusted, thereby regulating the spacing between the movable plate 62 and the pressing plate 45. This configuration ensures the pressing plate 45 securely positions and compresses the sheet 2, preventing it from detaching from the through-slot 41 and minimizing vibration. When the vacuum pump 5 activates, it evacuates air from the ventilation groove 43, creating negative pressure within the slot 43. This creates a suction effect that adheres the sheet 2 to the ventilation hole 431, providing auxiliary positioning. The tool 30 extends into the U-shaped groove 42, partially passing through the processing window 421 and contacting the sheet 2 to perform the required machining operations.

[0057] It should be noted that each embodiment in this manual is described in a progressive manner, with each embodiment emphasizing its differences from other embodiments. The same and similar parts between each embodiment can be referred to each other. Although alternative embodiments of the present application have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have knowledge of the basic inventive concept. Therefore, the attached claims are intended to be interpreted as including optional embodiments and all changes and modifications falling within the scope of the embodiments of the present application.

[0058] Finally, it should be noted that in this article, relationship terms such as first and second are only used to distinguish one entity from another, and do not necessarily require or imply any actual relationship or order between these entities. Moreover, the terms' including ',' containing ', or any other variation thereof are intended to encompass non exclusive inclusion, such that an item or terminal device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such item or terminal device. Without further restrictions, the element limited by the statement 'including one...' does not exclude the existence of other identical elements in the item or terminal device that includes the element.

[0059] The above provides a detailed introduction to the technical solution provided in this application. In this article, specific examples are applied to explain the principles and implementation methods of this application. At the same time, for general technical personnel in this field, there may be changes in the specific implementation methods and application scope based on the principles and implementation methods of this application. Therefore, the content of this specification should not be understood as limiting this application.

Examples

example 1

[0034]This embodiment provides an ultra-thin metal sheet comprising a first portion 11 and a second portion 21 with uniform thickness, where the first portion 11 has greater thickness than the second portion 21. A third portion 31 with non-uniform thickness transitions between the first and second portions, exhibiting a gradual thickness variation from the first portion's end to the second portion's end. The bottom surfaces of the first portion 11, second portion 21, and third portion 31 are co-planar, as shown in Figure 1. As illustrated in Figure 2, the upper surface of the third portion 31 is flat. The thickness of the first portion 11 is 0.05mm~0.5mm.

[0035]Ultra-thin metal sheets of uniform thickness are processed into the irregular-shaped metal sheets described in this embodiment through the following steps: First, the metal sheet to be processed is clamped and fixed, then transported along a predetermined trajectory. Next, a specialized tool is rotated to perform cutting opera...

example 2

[0042]This embodiment provides another ultra-thin metal sheet. The difference between this embodiment and embodiment 1 is that the upper surface of the third part 31 is an inwardly concave arc surface.

example 3

[0043]This embodiment provides an ultra-thin metal tube comprising the ultra-thin metal sheet as shown in Embodiment 1. The metal sheet is bent into a tubular shape in the direction of the bottom surface and then welded as depicted in Figure 3. The bottom surface refers to the flat surface of the metal sheet, i.e., the unprocessed side.

[0044]The Chinese patent CN219052473U, disclosed by the applicant, outlines a production line for ultra-fine seamless metal tubes and the manufacturing process of irregular ultra-thin tubes, which will not be elaborated here. The ultra-thin metal tubes in this application are not formed through drawing processes, as their material properties remain unchanged in the direction of elongation. These tubes exhibit exceptional strength and are resistant to breakage.

[0045]The ultra-thin metal tube of the present application is made of an irregular ultra-thin metal sheet with uneven thickness. It forms a smaller contact surface at one end of the tube, which c...

TECHNICAL FIELD

[0001] The present invention relates to the field of ultra-thin metal sheets, and particularly relates to An ultra-thin metal sheet, an ultra-thin metal tube and an ultra-thin metal sheet processing device.Description of the Related Art

[0002] Traditional processes involving steel often feature "thickness, toughness, and heaviness", but in order to adapt to high-precision and advanced industries,the field of ultra-thin metal sheet technology is a hotly contested field for relevant enterprises. Ultra-thin metal sheets typically refer to ultra-thin precision strip steel, which differs from the thickness of conventional stainless steel sheets. Generally, stainless steel strip steel with a thickness of ≤0.3mm, or even as thin as 0.01mm, is referred to as ultra-thin precision strip steel. It belongs to the field of precision stainless steel, and the definition of "ultra-thin" for ultra-thin metal sheets is similar to this.

[0003] In the field of ultra-thin materials, the development of China's high-end industries has been constrained by layer upon layer of technical barriers. However, according to the CCTV program "Powerhouse of China", China Baowu Steel Group has broken through technical barriers, reducing the thickness of 600mm stainless steel precision foil to 0.02mm, and then further rolling it down to the limit of 0.015mm. However, the stainless steel sheets obtained after processing through the aforementioned rolling process still have a uniform thickness. The technology for processing and obtaining irregular ultra-thin sheets with uneven thickness and for manufacturing tubes from them remains a blank in China.

[0004] Due to the extremely thin thickness of ultra-thin metal sheets, it is quite challenging to process them into irregularly shaped sheets with uneven thickness and to use them to manufacture tubes.For example, the traditional metal tube manufacturing process involves cutting stainless steel sheets to the required width ,and then subjecting them to rounding and welding by tube-making equipment. Metal tubes produced through this traditional process are generally thicker, with the smallest diameter being around 2.00mm-4.00mm.On this basis, if one wants to obtain a metal tube with a thinner diameter, it is necessary to subject the metal tube to multiple stretching processes. During the stretching process, the diameter of the metal tube will become thinner, and the wall thickness of the metal tube will decrease. However, the difficulty of each stretch is related to the ratio of the metal tube's wall thickness after the stretch to that before it. After several stretches, the difficulty of stretching the metal tube increases, and this increase follows an exponential pattern. Additionally, the metal tube is prone to breaking during stretching, making it impossible to produce an ultra-thin metal tube with significant strength.

[0005] In addition, the Chinese patent with the publication number CN219052473U is a production line for ultra fine seamless metal tubes applied by the applicant on May 13, 2022,and the production line Including: material rack, feeding mechanism, first positioning mechanism, preloading mechanism, second positioning mechanism, forming mechanism, third positioning mechanism, welding mechanism, to produce seamless metal pipes,the seamless metal tube is produced using rolled metal sheets as raw materials. The ultra-thin metal sheet has an irregular shape. The thinnest end of the metal sheet is not less than 0.02mm and not more than 0.3mm, and the thickest end is not less than 0.05mm and not more than 0.5mm. There is a uniform thickness transition between the thickest and thinnest ends,therefore, the precision requirements for processing equipment are high, and it has not yet been produced in China. Although some countries are able to produce irregularly shaped metal sheets, their production processes are not publicly available.

[0006] Therefore, the ultra-thin metal sheet processing equipment in existing technology still needs improvement.SUMMARY OF INVENTION

[0007] In response to the aforementioned technical defects, this application provides an ultra-thin metal sheet and ultra-thin metal tube.

[0008] It is therefore the objective of this invention to provide: An ultra-thin metal sheet comprising a sheet body, witch includes a first portion and a second portion, the first portion having a greater thickness than the second portion, and a third portion being set between the first portion and the second portion, the third portion has an uneven thickness, and the thickness of the third portion being gradually changing from its end connected to the first portion to its end connected to the second portion .

[0009] It is another objective of this invention, the thickness of the first portion is uniform, the thickness of the second portion is uniform, and the bottom surfaces of the first portion, the second portion and the third portion are co-planar.

[0010] In a form shown, the thickness of the first portion is 0.05mm~0.5mm.

[0011] In a form shown, the thickness of the second portion is 0.01mm~0.3mm.

[0012] In a form shown, the thickness of the second portion is 0.02mm~0.3mm.

[0013] In a form shown, the thickness of the second portion is 0.02∼0.2mm.

[0014] It is another objective of this invention, the upper surface of the third portion is a flat surface.

[0015] It is another objective of this invention, the upper surface of the third portion is an inwardly concave arc surface.

[0016] In a form shown,the sheet body includes two first portions, two second portions, and two third portions ; the two second portions are directly connected, the two third portions are symmetrically arranged on both sides of the second portions, and the two first portions are symmetrically arranged on both sides of the third portions.

[0017] The present invention provides an ultra-thin metal tube, wherein: the ultra-thin metal tube is formed with any one of the ultra-thin metal sheet , by being bent into a tubular shape in the direction of the bottom surface and then welded.

[0018] The ultra-thin metal sheet of this application scheme is irregular in shape and uneven in thickness, filling the gap in domestic irregular ultra-thin metal sheet and meeting the needs of high-end fields; The ultra-thin metal sheet tube of the present application scheme changes the traditional tube making process, eliminates the need for stretching the metal tube, overcomes the technical bias of ultra-thin metal sheet tube stretching and forming, and also overcomes the existing technical limitations of stretching and forming methods that cannot achieve ultra-thin metal sheet tubes; The ultra-thin metal sheet tube of the present application is not formed by stretching, and its material has not undergone internal changes in its extension direction. The ultra-thin metal sheet tube of the present application has sufficient strength and is not easily broken; The ultra-thin metal tube of this application is made of irregularly shaped ultra-thin metal sheets with uneven thickness. It forms a smaller contact surface at one end of the tube, which can achieve extremely high precision work. The smaller contact surface also represents higher strength output under the same conditions.

[0019] The present invention provides an ultra-thin metal sheet processing device,witch can be used for processing the ultra-thin metal sheet , with high precision.

[0020] An ultra-thin metal sheet processing device, comprising a machine platform, a processing machine and a mold are set on the machine platform, the mold is provided with a through slot extending along the left and right direction, the through slot is used for placing the sheet to be cut;The mold is provided with a U-shaped groove, and a processing window is provided on the U-shaped groove, and the processing window is provided near and communicates with the through slot ;The machining mechanism includes a tool drive mechanism and a tool, the tool is located in the U-shaped groove, and the tool is partially located in the processing window.

[0021] In a form shown, the mold comprises a pressing plate, a base plate, and a mold seat fixedly connected to the base plate, ,the mold seat is vertically arranged on the machine platform, the pressing plate is arranged on the front side of the base plate, the through slot is arranged on the front side wall of the base plate, and the U-shaped groove and the processing window are arranged on the pressing plate;The tool is vertically arranged in spindle or gourd shape,using the pressure plate to press the sheet, and use the tool to process the sheet.

[0022] In a form shown,the middle of the base plate is provided with a ventilation groove, the ventilation groove is located on the side of the through slot away from the tool, the ventilation groove is provided with a ventilation hole, the ventilation hole communicates with the through slot; It also includes a negative pressure device, the suction port of which is arranged at the ventilation slot.When the negative pressure device is started, the ventilation groove is evacuated and the sheet is sucked in through the ventilation hole to prevent offset occurs during the processing of the sheet.

[0023] In a form shown, the numbers of the U-shaped grooves and the ventilation grooves are both more than two.The processing machine can process sheets multiple times. In a form shown, the pressing plate is provided with an adjusting mechanism, which is used to adjust the gap between the pressing plate and the base plate, by adjusting the gap between the pressure plate and the base plate, it is convenient to process sheets of different thicknesses.

[0024] In a form shown,the adjusting mechanism includes a fixed plate, a movable plate and a hand-wheel;The fixed plate, movable plate and pressure plate are arranged from front to back in sequence;The hand-wheel is fixedly connected with a threaded adjustment column, and a nut is provided in the fixed plate, the threaded adjustment column is transmissionally connected with the nut, and the threaded adjustment column is rotatably connected with the movable plate,a spring is arranged between the movable plate and the pressing plate.

[0025] In a form shown, the pressing plate comprises a first pressing plate, a second pressing plate and a third pressing plate; the rear side wall of the first pressing plate, the rear side wall of the second pressing plate and the rear side wall of the third pressing plate are arranged from top to bottom in sequence; The first pressing plate, the second pressing plate and the third pressing plate are all slidingly matched with the threaded adjustment column, and the front end of the first pressing plate, the front end of the second pressing plate and the front side of the third pressing plate are all provided with a spring.

[0026] In a form shown,the mold comprises a pressing plate, a base plate, and a mold seat fixedly connected to the base plate, the mold seat is horizontally arranged on the machine platform, and the tool is horizontally arranged in spindle-shaped or gourd-shaped, the sheet can move horizontally and be cut by the processing machine. The effects of this application are as follows: The sheets passe through a through-slot equipped with a machining window, where the tool is installed. Due to the limitations of the machining window, it is easy to inspect the installation accuracy of the tool and control the distance between the tool and the sheets during installation. Simultaneously, the window's constraints and the mold's clamping effect on the sheet effectively prevent issues such as unstable fixation of ultra-thin metal sheets and material displacement caused by machining vibrations. This significantly improves machining precision and yield, enabling accurate cutting of metal sheets. The metal sheets described in this application can also be in the form of sheets stored in rolls.BRIEF DESCRIPTION OF THE FIGURES

[0027] The application will be described in more detail below with reference to the drawings and embodiments. FIG. 1 is a top view of the ultra-thin metal sheet of the present application; FIG. 2 is a cross-sectional view of an ultra-thin metal sheet in embodiment 1 of the present application; FIG. 3 is a cross-sectional view of the ultra-thin metal sheet tube of embodiment 3 of the present application; Figure 4 is a cross-sectional view of the ultra-thin metal sheet in embodiment 5 of the present application; Figure 5 is a cross-section of the ultra-thin metal sheet after pipe making in the fifth embodiment of the present application; Figure 6 is the cross-section of the product of the ultra-thin metal sheet in embodiment 5 of the present application; FIG. 7 is a cross-sectional view of the ultra-thin metal sheet in embodiment 6 of the present application; FIG. 8 is a cross-sectional view of the ultra-thin metal sheet after pipe making in embodiment 6 of the present application; FIG. 9 is a cross-sectional view of the final product of the ultra-thin metal sheet in embodiment 6 of the present application; Figure 10 is a front view of the ultra-thin metal sheet processing device; Figure 11 shows a close-up of section A in Figure 10; Figure 12 is a partial structural diagram of a ultra-thin metal sheet processing equipment; Figure 13 shows a close-up of section B in Figure 12. Figure 14 is a right view of an ultra-thin metal sheet processing device; Figure 15 is a front view of another embodiment of the ultra-thin metal sheet processing device of the present application; FIG. 16 is a schematic diagram of the tool of the present application in one embodiment ; FIG. 17 is a schematic diagram of another embodiment of the tool of the present application; FIG. 18 is a top view of the ultra-thin metal sheet processing device of the present application.

[0028] The diagram shows: 1-machine platform, 2-sheets, 3-processing machine, 30-tool, 4-mold, 41-through slot, 42-U-shaped groove, 421-processing window, 43-ventilation groove, 431-ventilation hole, 44-base plate, 45-pressure plate, 451-first pressure plate, 452-second pressure plate, 453-third pressure plate, 46-mold seat, 5-negative pressure device, 6-adjustment mechanism, 61-fixed plate, 62-movable plate, 63-handwheel, 64-spring, 65- threaded adjustment column.

[0029] In the drawings, the same parts are marked with the same reference numerals, and the drawings are not to scale.DETAILED DESCRIPTION

[0030] The technical solutions of the embodiments herein will be described in detail with reference to the accompanying drawings. It should be noted that the described embodiments constitute only a portion of the claimed solutions, not the complete set. Based on these embodiments, the general technical personnel in the relevant field. All other embodiments obtained by the skilled person without making creative labor fall within the scope of protection of the present application.The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly include one or more such features. In the description of this application, unless otherwise stated, "multiple" means two or more. Additionally, the specification and claims.In the 30th requirement, the symbol "and / or" indicates that at least one of the connected objects is included, while the character " / " typically represents an "or" relationship between the preceding and following objects.

[0031] In the description of the present application, it should be noted that unless otherwise expressly provided and limited, The terms "installation", "connected", and "connection" should be interpreted broadly. These may include fixed or detachable connections, as well as integrated configurations. The types of connections can range from mechanical to electrical, encompassing both direct and indirect connections through intermediaries, as well as internal interconnections between components. For those skilled in the art, these terms should be understood in the context of specific applications.

[0032] Explain the specific meaning of the above terms in the application.It should be understood that the term "one embodiment" mentioned throughout the specification refers to specific features, structures, or characteristics associated with the embodiments included in at least one embodiment of the present application. Therefore, the phrases "in one embodiment" or "in an embodiment" appearing throughout the specification do not necessarily refer to the same embodiment. Additionally, these specific features, structures, or characteristics may vary across different embodiments. can be combined in any suitable manner in one or more embodiments.

[0033] Unless otherwise stated, directional terms such as "up" and "down" are generally used to refer to the directions shown in the attached drawings.Example 1

[0034] This embodiment provides an ultra-thin metal sheet comprising a first portion 11 and a second portion 21 with uniform thickness, where the first portion 11 has greater thickness than the second portion 21. A third portion 31 with non-uniform thickness transitions between the first and second portions, exhibiting a gradual thickness variation from the first portion's end to the second portion's end. The bottom surfaces of the first portion 11, second portion 21, and third portion 31 are co-planar, as shown in Figure 1. As illustrated in Figure 2, the upper surface of the third portion 31 is flat. The thickness of the first portion 11 is 0.05mm~0.5mm.

[0035] Ultra-thin metal sheets of uniform thickness are processed into the irregular-shaped metal sheets described in this embodiment through the following steps: First, the metal sheet to be processed is clamped and fixed, then transported along a predetermined trajectory. Next, a specialized tool is rotated to perform cutting operations, forming the second section 21 and third section 31. While the maximum thickness limit for section 21 is 0.01mm~0.3mm, the optimal thickness for current market demands is preferably 0.02mm~0.3mm or 0.02mm~0.2mm.

[0036] The aforementioned process can be executed using ultra-thin metal sheet processing device, as illustrated in Figure 10. The system comprises a machine platform 1 equipped with a processing machine 3 and a mold 4. The mold seat 46 (not shown in Figure 10) is securely mounted on the machine platform 1. The mold 4 features a through slot 41 extending horizontally for positioning the sheets 2. A ventilation groove 43 is provided in the mold, with the suction port of the negative pressure device 5 positioned at this vent slot.

[0037] As shown in Figure 11, mold 4 features a U-shaped groove 42 with a machining window 421. The mold consists of a pressure plate 45 and a base plate44, and a mold seat 46 fixedly connected to the base plate 44, the mold seat 46 is vertically arranged on the machine platform 1, the pressure plate 45 is positioned on the front side of the base plate 44, which has a through-slot 41 on its front wall. Both the U-shaped groove 42 and machining window 421 are located on the pressure plate 45.

[0038] As shown in Figure 12, the adjustment mechanism 6 consists of a fixed plate 61, a movable plate 62, and a handwheel 63. The movable plate 62 is positioned in front of the pressure plate 45 at a certain distance from it. The fixed plate 61 is mounted on the front side of the movable plate 62. A threaded adjustment column 65 is fixedly connected to the handwheel 63. A nut is installed in the fixed plate 61, and the threaded adjustment column 65 is transmissionally connected to the nut. The threaded adjustment column 65 is rotatably connected to the movable plate 62. A spring 64 is installed between the movable plate 62 and the pressure plate 45.

[0039] As shown in Figure 13, the through slot 41 and ventilation groove 43 are positioned on the base plate 44. The U-shaped groove 42 is mounted on the pressure plate 45, located on the side of the through slot 41. The tool 30 is positioned within the U-shaped groove 42, with part of it embedded in the machining window 421. The ventilation groove 43 is situated on the side of the through slot 41 opposite the tool 30, featuring ventilation holes 431 that communicate with the through slot 41. The tool 30 is designed in a gourd-shaped or spindle-shaped configuration.

[0040] As shown in Figure 14, the pressure plate assembly 45 comprises three sequential plates: the first plate 451, second plate 452, and third plate 453, arranged vertically with their rear walls aligned from top to bottom. All plates are slidably mounted on the threaded adjustment column 65, while the front end of the first plate 451 and second plate 452 features springs 64, and front surface of the third plate 453 features a spring 64.

[0041] The ultra-thin metal sheet 2 is positioned in the through-slot 41. By adjusting the distance between the movable plate 62 and the fixed plate 61 via rotating the handwheel 63, the spacing between the movable plate 62 and the pressing plate 45 is modified. The pressing plate 45 ensures the metal sheet 2 maintains proper positioning and been compressed , and prevents it from detaching from the through-slot 41 and minimizing vibration; When the negative pressure device 5 activates, it creates negative pressure within the air passage 43, causing the metal sheet 2 to adhere to the air vent 431, this adhesion also assists in securing the metal sheet 2 in place ; The tool 30 extends into the U-shaped groove 42, partially passing through the processing window 421 to contact the metal sheet 2 for cutting. Through this process, irregularly shaped ultra-thin metal sheets with uneven thickness are successfully processed. Subsequent irregular processing procedures for similar metal sheets follow the same way, hence no further elaboration is provided here.Example 2

[0042] This embodiment provides another ultra-thin metal sheet. The difference between this embodiment and embodiment 1 is that the upper surface of the third part 31 is an inwardly concave arc surface.Example 3

[0043] This embodiment provides an ultra-thin metal tube comprising the ultra-thin metal sheet as shown in Embodiment 1. The metal sheet is bent into a tubular shape in the direction of the bottom surface and then welded as depicted in Figure 3. The bottom surface refers to the flat surface of the metal sheet, i.e., the unprocessed side.

[0044] The Chinese patent CN219052473U, disclosed by the applicant, outlines a production line for ultra-fine seamless metal tubes and the manufacturing process of irregular ultra-thin tubes, which will not be elaborated here. The ultra-thin metal tubes in this application are not formed through drawing processes, as their material properties remain unchanged in the direction of elongation. These tubes exhibit exceptional strength and are resistant to breakage.

[0045] The ultra-thin metal tube of the present application is made of an irregular ultra-thin metal sheet with uneven thickness. It forms a smaller contact surface at one end of the tube, which can complete a highly accurate work. The smaller contact surface also represents a higher strength output under the same conditions.Example 4

[0046] This embodiment provides an ultra-thin metal tube, which is different from embodiment 3 in that it is made of the ultra-thin metal sheet of embodiment 2.Example 5

[0047] This embodiment provides an ultra-thin metal sheet comprising two ultra-thin metal sheets of the first embodiment. The second sections 21 are directly connected, with two third sections 31 symmetrically arranged on both sides of the second sections 21. The first sections 11 are symmetrically positioned on both sides of the third sections 31, forming the ultra-thin metal sheet as shown in Figure 4. The sheet is manufactured in a single operation using the aforementioned processing equipment.

[0048] The ultra-thin metal tube made of the ultra-thin metal sheet of the present embodiment is shown in FIG. 5, and can be further cut to form the needle tube-shaped ultra-thin metal tube as shown in FIG. 6.Example 6

[0049] The difference between the present embodiment and embodiment 5 is that the two ultra-thin metal sheets included in the ultra-thin metal sheet of the present embodiment are the sheets shown in embodiment 2, as shown in FIG. 7.

[0050] The ultra-thin metal tube made of the ultra-thin metal sheet of the present embodiment is shown in FIG. 8, and can be further cut to form the needle tube-shaped ultra-thin metal tube shown in FIG. 9.

[0051] This application provides an ultra-thin metal sheet processing device. As shown in Figure 10, the machine platform 1 is equipped with a processing mechanism 3 and a mold 4, where the mold seat 46 of the mold 4 is fixedly installed on the machine platform 1. The mold 4 contains a through slot 41 extending along the left-right direction, designed to accommodate the sheets 2 for cutting. A ventilation groove 43 is centrally located in the mold 4, with the suction port of the negative pressure device 5 positioned at this ventilation groove 43.

[0052] As shown in Figure 11, the mold 4 is provided with a U-shaped groove 42, and the U-shaped groove 42 is provided with a machining window 421; As shown in Figure 18, the adjustment mechanism 6 consists of a fixed plate 61, a movable plate 62, and a handwheel 63. The movable plate 62 is positioned in front of the pressing plate 45 at a predetermined distance, while the fixed plate 61 is mounted on the front side of the movable plate 62. A threaded adjustment column 65 is securely attached to the handwheel 63. The fixed plate 61 contains a nut that engages with the threaded adjustment column 65, which is rotationally connected to the movable plate 62. A spring 64 is installed between the movable plate 62 and the pressing plate 45. As shown in Figure 13, the through slot 41 and ventilation groove 43 are positioned on the base plate 44. The U-shaped groove 42 is mounted on the pressure plate 45, located on the side of the through slot 41. The tool 30 is positioned within the U-shaped groove 42, with part of it embedded in the machining window 421. The ventilation groove 43 is situated on the side of the through slot 41 opposite the tool 30, featuring ventilation holes 431 that communicate with the through slot 41.

[0053] As shown in Figure 14, the pressure plate assembly 45 comprises three sequential plates: the first 451, second 452, and third 453 plates, arranged vertically with their rear walls aligned from top to bottom. All plates are slidably mounted on the threaded adjustment column 65, while the front end of the first plate 451 and second plate 452 features springs 64, and front surface of the third plate 453 features a spring 64. Referring to Figure 15, in this embodiment, the mold 4 is horizontally arranged on the machine 1.

[0054] Referring to Figure 16, the tool 30 is shaped like a gourd.

[0055] Referring to Figure 17, the tool 30 is spindle-shaped.effect :

[0056] Sheet 2 is positioned in the through-slot 41. By rotating the handwheel 63, the distance between the movable plate 62 and the fixed plate 62 is adjusted, thereby regulating the spacing between the movable plate 62 and the pressing plate 45. This configuration ensures the pressing plate 45 securely positions and compresses the sheet 2, preventing it from detaching from the through-slot 41 and minimizing vibration. When the vacuum pump 5 activates, it evacuates air from the ventilation groove 43, creating negative pressure within the slot 43. This creates a suction effect that adheres the sheet 2 to the ventilation hole 431, providing auxiliary positioning. The tool 30 extends into the U-shaped groove 42, partially passing through the processing window 421 and contacting the sheet 2 to perform the required machining operations.

[0057] It should be noted that each embodiment in this manual is described in a progressive manner, with each embodiment emphasizing its differences from other embodiments. The same and similar parts between each embodiment can be referred to each other. Although alternative embodiments of the present application have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have knowledge of the basic inventive concept. Therefore, the attached claims are intended to be interpreted as including optional embodiments and all changes and modifications falling within the scope of the embodiments of the present application.

[0058] Finally, it should be noted that in this article, relationship terms such as first and second are only used to distinguish one entity from another, and do not necessarily require or imply any actual relationship or order between these entities. Moreover, the terms' including ',' containing ', or any other variation thereof are intended to encompass non exclusive inclusion, such that an item or terminal device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such item or terminal device. Without further restrictions, the element limited by the statement 'including one...' does not exclude the existence of other identical elements in the item or terminal device that includes the element.

[0059] The above provides a detailed introduction to the technical solution provided in this application. In this article, specific examples are applied to explain the principles and implementation methods of this application. At the same time, for general technical personnel in this field, there may be changes in the specific implementation methods and application scope based on the principles and implementation methods of this application. Therefore, the content of this specification should not be understood as limiting this application.

Examples

example 1

[0034]This embodiment provides an ultra-thin metal sheet comprising a first portion 11 and a second portion 21 with uniform thickness, where the first portion 11 has greater thickness than the second portion 21. A third portion 31 with non-uniform thickness transitions between the first and second portions, exhibiting a gradual thickness variation from the first portion's end to the second portion's end. The bottom surfaces of the first portion 11, second portion 21, and third portion 31 are co-planar, as shown in Figure 1. As illustrated in Figure 2, the upper surface of the third portion 31 is flat. The thickness of the first portion 11 is 0.05mm~0.5mm.

[0035]Ultra-thin metal sheets of uniform thickness are processed into the irregular-shaped metal sheets described in this embodiment through the following steps: First, the metal sheet to be processed is clamped and fixed, then transported along a predetermined trajectory. Next, a specialized tool is rotated to perform cutting opera...

example 2

[0042]This embodiment provides another ultra-thin metal sheet. The difference between this embodiment and embodiment 1 is that the upper surface of the third part 31 is an inwardly concave arc surface.

example 3

[0043]This embodiment provides an ultra-thin metal tube comprising the ultra-thin metal sheet as shown in Embodiment 1. The metal sheet is bent into a tubular shape in the direction of the bottom surface and then welded as depicted in Figure 3. The bottom surface refers to the flat surface of the metal sheet, i.e., the unprocessed side.

[0044]The Chinese patent CN219052473U, disclosed by the applicant, outlines a production line for ultra-fine seamless metal tubes and the manufacturing process of irregular ultra-thin tubes, which will not be elaborated here. The ultra-thin metal tubes in this application are not formed through drawing processes, as their material properties remain unchanged in the direction of elongation. These tubes exhibit exceptional strength and are resistant to breakage.

[0045]The ultra-thin metal tube of the present application is made of an irregular ultra-thin metal sheet with uneven thickness. It forms a smaller contact surface at one end of the tube, which c...

Claims

1. An ultra-thin metal sheet comprising a sheet body, wherein : the sheet body includes a first portion and a second portion, the first portion having a greater thickness than the second portion, and a third portion being set between the first portion and the second portion, the third portion has an uneven thickness, and the thickness of the third portion being gradually changing from its end connected to the first portion to its end connected to the second portion .

2. An ultra-thin metal sheet according to claim 1, wherein: the thickness of the first portion is uniform, the thickness of the second portion is uniform, and the bottom surfaces of the first portion, the second portion and the third portion are co-planar.

3. An ultra-thin metal sheet according to claim 1, wherein: the thickness of the first portion is 0.05mm∼0.5mm.

4. An ultra-thin metal sheet according to claim 1, wherein: the thickness of the second portion is 0.01mm~0.3mm.

5. An ultra-thin metal sheet according to claim 4, wherein: the thickness of the second portion is 0.02mm~0.3mm.

6. An ultra-thin metal sheet according to claim 5, wherein: the thickness of the second portion is 0.02∼0.2mm.

7. An ultra-thin metal sheet according to claim 1, wherein: the upper surface of the third portion is a flat surface.

8. An ultra-thin metal sheet according to claim 1, wherein: the upper surface of the third portion is an inwardly concave arc surface.

9. An ultra-thin metal sheet according to claim 1, wherein: the sheet body includes two first portions, two second portions, and two third portions ; the two second portions are directly connected, the two third portions are symmetrically arranged on both sides of the second portions, and the two first portions are symmetrically arranged on both sides of the third portions.

10. An ultra-thin metal tube, wherein: the ultra-thin metal tube is formed with any one of the ultra-thin metal sheet described in claims 1 to 8, by being bent into a tubular shape in the direction of the bottom surface and then welded.

11. An ultra-thin metal sheet processing device, comprising a machine platform, a processing machine and a mold are set on the machine platform, the mold is provided with a through slot extending along the left and right direction, the through slot is used for placing the sheet to be cut; The mold is provided with a U-shaped groove, and a processing window is provided on the U-shaped groove, and the processing window is provided near and communicates with the through slot ; The machining mechanism includes a tool drive mechanism and a tool, the tool is located in the U-shaped groove, and the tool is partially located in the processing window.

12. An ultra-thin metal sheet processing device according to claim 11, wherein: The mold comprises a pressing plate, a base plate, and a mold seat fixedly connected to the base plate, the mold seat is vertically arranged on the machine platform, the pressing plate is arranged on the front side of the base plate, the through slot is arranged on the front side wall of the base plate, and the U-shaped groove and the processing window are arranged on the pressing plate; The tool is vertically arranged in spindle or gourd shape.

13. An ultra-thin metal sheet processing device according to claim 12, wherein: The middle of the base plate is provided with a ventilation groove, the ventilation groove is located on the side of the through slot away from the tool, the ventilation groove is provided with a ventilation hole, the ventilation hole communicates with the through slot; It also includes a negative pressure device, the suction port of which is arranged at the ventilation slot.

14. An ultra-thin metal sheet processing device according to claim 13, wherein: The numbers of the U-shaped grooves and the ventilation grooves are both more than two.

15. An ultra-thin metal sheet processing device according to claim 14, wherein: The pressing plate is provided with an adjusting mechanism, which is used to adjust the gap between the pressing plate and the base plate.

16. An ultra-thin metal sheet processing device according to claim 15, wherein: The adjusting mechanism includes a fixed plate, a movable plate and a hand-wheel; The fixed plate, movable plate and pressure plate are arranged from front to back in sequence; The hand-wheel is fixedly connected with a threaded adjustment column, and a nut is provided in the fixed plate, the threaded adjustment column is transmissionally connected with the nut, and the threaded adjustment column is rotatably connected with the movable plate,a spring is arranged between the movable plate and the pressing plate.

17. An ultra-thin metal sheet processing device according to claim 16, wherein: The pressing plate comprises a first pressing plate, a second pressing plate and a third pressing plate; the rear side wall of the first pressing plate, the rear side wall of the second pressing plate and the rear side wall of the third pressing plate are arranged from top to bottom in sequence; The first pressing plate, the second pressing plate and the third pressing plate are all slidingly matched with the threaded adjustment column, and the front end of the first pressing plate, the front end of the second pressing plate and the front side of the third pressing plate are all provided with a spring.

18. An ultra-thin metal sheet processing device according to claim 11, wherein: The mold comprises a pressing plate, a base plate, and a mold seat fixedly connected to the base plate, the mold seat is horizontally arranged on the machine platform, and the tool is horizontally arranged in spindle-shaped or gourd-shaped.

Images