CN113199210B - Manufacturing method of high-precision ultrathin section filled with heat-insulation aluminum alloy - Google Patents
Manufacturing method of high-precision ultrathin section filled with heat-insulation aluminum alloy Download PDFInfo
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- CN113199210B CN113199210B CN202110433177.0A CN202110433177A CN113199210B CN 113199210 B CN113199210 B CN 113199210B CN 202110433177 A CN202110433177 A CN 202110433177A CN 113199210 B CN113199210 B CN 113199210B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/02—Stamping using rigid devices or tools
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D19/00—Casting in, on, or around objects which form part of the product
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
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Abstract
The invention discloses a method for manufacturing a high-precision ultrathin section filled with heat-insulating aluminum alloy, which belongs to the technical field of ultrathin section manufacturing and comprises the following steps: searching a section, primarily scribing the section, placing the section subjected to scribing on a cutting device to primarily cut the section to form a primary section plate, and keeping the integral rotating speed of the cutting device; the method can improve the overall quality of the produced section bar and facilitate the subsequent thickness control of the section bar by arranging the homogenization treatment on the section bar in the method, can improve the precision of the thickness control of the section bar by arranging the temperature-variable extrusion treatment on the section bar for many times in the method, meets the production requirement of the ultrathin section bar, is also provided with the aluminum alloy filling step in the method, ensures that the produced section bar has good heat insulation effect and capacity, can effectively expand the applicable field range of the produced finished product, is easy to popularize in the market and improves the product competitiveness.
Description
Technical Field
The invention belongs to the technical field of ultrathin section bar manufacturing, and particularly relates to a manufacturing method of a high-precision ultrathin section bar filled with heat-insulation aluminum alloy.
Background
The section bar is a solid straight bar which is formed by plastic processing and has a certain section shape and size. The section bar has various varieties and specifications and wide application, plays a very important role in rolling production, has different functions according to different materials and types, can be used in different working environments, and is an ultra-thin section bar which belongs to one of various section bar categories.
At present, the production process of the ultrathin section is different in size, the ultrathin section is produced only through simple steps, and in the production process, the step of filling heat insulation aluminum alloy is not arranged in the production process, so that the heat insulation performance of the whole interior of the produced ultrathin section is poor, the heat insulation effect cannot meet the requirement, the application range of the produced ultrathin section is greatly limited, and in order to improve the condition, a high-precision ultrathin section manufacturing method filled with the heat insulation aluminum alloy is needed.
Disclosure of Invention
The invention aims to: the manufacturing method of the high-precision ultrathin section filled with the heat-insulation aluminum alloy is provided for solving the problems that the existing production process of the ultrathin section is similar and different, the ultrathin section is produced only through simple steps, and the step of filling the heat-insulation aluminum alloy is not arranged in the production process, so that the heat insulation performance of the whole interior of the produced ultrathin section is poor, the heat insulation effect cannot meet the requirement, and the application range of the produced ultrathin section is greatly limited.
In order to achieve the purpose, the invention adopts the following technical scheme: a manufacturing method of a high-precision ultrathin section filled with heat-insulation aluminum alloy comprises the following steps:
s1, searching a section, primarily scribing the section, placing the scribed section on a cutting device to primarily cut the section to form a primary section plate, and keeping the integral rotating speed of the cutting device;
s2, placing the section in a homogenizing treatment furnace, carrying out homogenizing treatment on the section, and keeping the treatment temperature for a period of time;
s3, cooling the section in the S2 to a certain degree, keeping for a period of time, extruding the section by using an extrusion die flat plate with a certain temperature, and extruding the section repeatedly for a certain number of times to change the thickness of the section;
s4, heating the section again at the moment, heating to a certain temperature, and continuously keeping the temperature;
s5, repeating the step S3, extruding the section by using an extrusion die flat plate with a certain temperature, extruding the section repeatedly for a certain number of times, and further reducing the thickness of the section;
s6, when the section is cooled in a natural state, marking a rectangular cutting surface with a certain size on the outer surface of the section by using a marking pen;
s7, utilizing a cutting device to perform internal grooving on the section bar according to the scribing area, so that a non-through internal filling groove is formed in the section bar;
s8, slowly pouring molten aluminum alloy into an inner filling groove formed in the section bar, filling the aluminum alloy to a certain internal volume, and waiting for the aluminum alloy to be cooled in a natural state;
s9, utilizing the remaining section bar cut in the step S1 to carve a rectangular surface with a certain size in the step S6 on the section bar, and utilizing a cutting device to cut a cuboid with a certain size to serve as an outer cover of the section bar; s10, clamping the outer cover into a groove in the top of the profile, testing the buckling effect, taking out the outer cover if the buckle is just closed, reserving a cutting material with a certain length on the outer side of the outer cover, and marking; s11, cutting the reserved cutting material, grinding and polishing corners after cutting, and grinding and polishing the processed section to enable the outer surface to be smooth;
s12, searching for a sealing material, and blanking the sealing material according to the size standard in S10;
s13, coating a layer of viscose on the periphery of the sealing material, heating the sealing material to a certain degree, and adhering the sealing material to the outer surface of the outer cover by using a tool;
s14, finally clamping the outer cover provided with the sealing material into the surface of the section bar, injecting glue into a gap between the outer cover and the section bar, and carrying out sealing and bonding treatment on the outer cover;
s15, after the sealing glue is naturally dried, the final finished product section is obtained, and the section is stored, packaged and stored in a warehouse.
Optionally, in an embodiment, in S1, a profile is searched, a preliminary scribing is performed on the profile, the scribed profile is placed on a cutting device to perform a preliminary cutting process on the profile, the profile is cut into a preliminary profile plate, and the overall rotation speed of the cutting device is kept at 1200-1600r/min.
Optionally, in an embodiment, in S2, the profile is placed in a homogenizing treatment furnace, and the homogenization treatment is performed on the profile, and the treatment temperature is kept at 650-750 ℃ for 2-4 hours.
Optionally, in an embodiment, in S3, the temperature of the profile in S2 is reduced to 550-650 ℃, and is maintained for 20-30min, at this time, the flat plate of the die is extruded at 300-400 ℃, and the profile is extruded repeatedly for 3-4 times.
Optionally, in an embodiment, in S4, the temperature of the profile is increased again to 600-700 ℃, and the temperature is kept for 30-40min.
Optionally, in an embodiment, in S5, the step S3 is repeated, and the profile is extruded by using an extrusion die flat plate at 400-500 ℃, and is extruded repeatedly for 7-8 times, so as to further reduce the thickness of the profile to below 30 mm.
Optionally, in an embodiment, in S6, after the profile is naturally cooled, a marking pen is used to mark a rectangular opening surface of 50mmX20mm on the outer surface of the profile.
Optionally, in an embodiment, in S8, the molten aluminum alloy is slowly poured into an inner filling groove formed in the profile, and the filling is performed until the amount of the aluminum alloy is 85% to 90% of the inner volume of the inner filling groove.
Optionally, in an embodiment, in S10, the outer cover is clamped into a groove in the top of the profile, the buckling effect is tested, if the buckle is just closed, the outer cover is taken out, a 2-4mm cutting material is reserved on the outer side of the outer cover, and marking is done, in S12, sealing resin is searched for as a sealing material, and the sealing material is blanked according to the size standard in S10.
Optionally, in an embodiment, in S13, a layer of butyl adhesive is applied to the periphery of the sealing material, and the sealing material is heated to 30-40 ℃ and is adhered to the outer surface of the outer cover by using a tool.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
the method is characterized in that the homogenization treatment of the section is arranged in the method, the treatment can change the internal structure and performance of the continuous casting line billet, so as to be beneficial to the subsequent stretching production, improve the crystalline structure in the material, eliminate the casting stress, reduce the segregation, improve the overall quality of the produced section and facilitate the subsequent thickness control of the section, meanwhile, the method is also internally provided with a plurality of temperature-variable extrusion treatments aiming at the section, the process is combined with the homogenization treatment of the section, the thickness of the section can be effectively controlled and changed, the precision of the thickness control of the section can be improved through the plurality of treatments, and the production requirement of the ultrathin section is met, the method is also provided with an aluminum alloy filling step, the heat-insulating aluminum alloy can be filled into the section, so that the produced section has good heat-insulating effect and capacity, the applicable field range of the produced finished product can be effectively expanded, the market popularization is easy, the product competitiveness is improved, meanwhile, a sealing process is provided in the process, the process realizes the sealing of the section through uncovering, gluing and sealing cover air drying, the filled internal alloy can be effectively protected, meanwhile, the sealing by using butyl rubber has the characteristic of good air tightness, and meanwhile, the method also has the characteristics of heat resistance, aging resistance, corrosion resistance and the like, has the shock absorption and electrical insulation performance, the seal can not crack, and the synthetic section has good use effect.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the embodiments of the present application will be clearly and completely described below, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments.
Thus, the following detailed description of the embodiments of the present application is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the embodiments of the present application, it should be understood that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like refer to positions or positional relationships as they are usually found in use of the product of the present application, or as they are commonly understood by those skilled in the art, and are used merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be considered as limiting the present application.
In the description of the embodiments of the present application, it should also be noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
Example 1
The invention provides a technical scheme that: a manufacturing method of a high-precision ultrathin section filled with heat-insulation aluminum alloy comprises the following steps:
s1, searching a section, primarily scribing the section, placing the scribed section on a cutting device to primarily cut the section to form a primary section plate, and keeping the integral rotating speed of the cutting device at 1200r/min;
s2, placing the section in a homogenization treatment furnace, carrying out homogenization treatment on the section, keeping the treatment temperature to 650 ℃, and keeping for 2 hours;
s3, cooling the section in the S2 to 550 ℃, keeping for 20min, extruding the section by using an extrusion die flat plate at 300 ℃, and extruding the section in a reciprocating manner for 3 times to change the thickness of the section;
s4, heating the section again to 600 ℃, and continuously keeping the temperature for 30min;
s5, repeating the step S3, extruding the section for 7 times by using an extrusion die flat plate at 400 ℃, and further reducing the thickness of the section to be less than 30 mm;
s6, when the section is cooled in a natural state, marking a rectangular cutting surface of 50mmX20mm on the outer surface of the section by using a marking pen;
s7, utilizing a cutting device to perform internal grooving on the section bar according to the scribing area, so that a non-through internal filling groove is formed in the section bar;
s8, slowly pouring molten aluminum alloy into an inner filling groove formed in the section bar, filling the molten aluminum alloy to 85% of the inner volume of the inner filling groove, and waiting for the aluminum alloy to be cooled in a natural state;
s9, utilizing the remaining section bar cut in the step S1 to carve a rectangular surface with a certain size in the step S6 on the section bar, and utilizing a cutting device to cut a cuboid with a certain size to serve as an outer cover of the section bar;
s10, clamping the outer cover into a groove in the top of the section bar, testing the buckling effect, taking out the outer cover if the buckle is just closed, reserving a 2mm cutting material on the outer side of the outer cover, and marking;
s11, cutting the reserved cutting material, grinding and polishing corners after cutting, and grinding and polishing the processed section to enable the outer surface to be smooth;
s12, searching sealing resin as a sealing material, and blanking the sealing material according to the size standard in S10;
s13, coating a layer of butyl rubber adhesive on the periphery of the sealing material, heating the sealing material to 30 ℃, and adhering the sealing material to the outer surface of the outer cover by using a tool;
s14, finally clamping the outer cover provided with the sealing material into the surface of the section bar, injecting glue into a gap between the outer cover and the section bar, and carrying out sealing and bonding treatment on the outer cover;
s15, after the sealing glue is naturally dried, the final finished product section is obtained, and the section is stored, packaged and stored in a warehouse.
In the embodiment, the homogenization treatment of the section is arranged, the treatment can change the structure and the performance in the continuous casting line billet so as to be beneficial to the subsequent stretching production, improve the crystal structure in the material, eliminate the casting stress, reduce the segregation, improve the overall quality of the produced section and facilitate the subsequent thickness control of the section.
Example 2
The invention provides a technical scheme that: a manufacturing method of a high-precision ultrathin section filled with heat-insulation aluminum alloy comprises the following steps:
s1, searching a section, primarily scribing the section, placing the scribed section on a cutting device, primarily cutting the section into a primary section plate, and keeping the integral rotating speed of the cutting device at 1400r/min;
s2, placing the section in a homogenization treatment furnace, carrying out homogenization treatment on the section, keeping the treatment temperature to 680 ℃, and keeping for 2.5 hours;
s3, cooling the section in the S2 to 600 ℃, keeping for 25min, extruding the section by using an extrusion die flat plate at 300 ℃, and extruding the section in a reciprocating manner for 3 times to change the thickness of the section;
s4, heating the section again to 650 ℃, and continuously keeping the temperature for 35min;
s5, repeating the step S3, extruding the section for 7 times by using an extrusion die flat plate at 450 ℃, and further reducing the thickness of the section to be less than 30 mm;
s6, when the section is cooled in a natural state, marking a rectangular cutting surface of 50mmX20mm on the outer surface of the section by using a marking pen;
s7, utilizing a cutting device to perform internal grooving on the section bar according to the scribing area, so that a non-through internal filling groove is formed in the section bar;
s8, pouring the molten aluminum alloy into an inner filling groove formed in the section bar at a low speed until the content of the aluminum alloy is 87% of the inner filling groove, and waiting for the aluminum alloy to cool in a natural state;
s9, cutting the residual section bar in the step S1, carving a rectangular surface with a certain size in the step S6 on the section bar, and cutting a cuboid with a next size by using a cutting device to serve as an outer cover of the section bar;
s10, clamping the outer cover into a groove in the top of the section bar, testing the buckling effect, taking out the outer cover if the buckle is just closed, reserving a 2mm cutting material on the outer side of the outer cover, and marking;
s11, cutting the reserved cutting material, grinding and polishing corners after cutting, and grinding and polishing the processed section to enable the outer surface to be smooth;
s12, searching sealing resin as a sealing material, and blanking the sealing material according to the size standard in S10;
s13, coating a layer of butyl rubber adhesive on the periphery of the sealing material, heating the sealing material to 35 ℃, and adhering the sealing material to the outer surface of the outer cover by using a tool;
s14, finally clamping the outer cover provided with the sealing material into the surface of the section bar, injecting glue into a gap between the outer cover and the section bar, and carrying out sealing and bonding treatment on the outer cover;
s15, naturally drying the sealing glue to obtain a final finished product section, and storing, packaging and storing.
In the embodiment, the method is also internally provided with multiple variable-temperature extrusion treatment aiming at the section, the process is combined with homogenization treatment on the section, the thickness of the section can be effectively controlled and changed, the precision of the thickness control on the section can be improved through multiple treatment, the production requirement of the ultrathin section is met, the method is also internally provided with an aluminum alloy filling step, and heat-insulating aluminum alloy can be filled into the section, so that the produced section has good heat-insulating effect and capacity, the applicable field range of the produced finished product can be effectively expanded, the market popularization is easy, and the product competitiveness is improved.
Example 3
The invention provides a technical scheme that: a manufacturing method of a high-precision ultrathin section filled with heat-insulation aluminum alloy comprises the following steps:
s1, searching a section, primarily scribing the section, placing the scribed section on a cutting device to primarily cut the section to form a primary section plate, and keeping the integral rotating speed of the cutting device at 1500r/min;
s2, placing the section in a homogenizing treatment furnace, homogenizing the section, keeping the treatment temperature to 700 ℃, and keeping for 3.5 hours;
s3, cooling the section in the S2 to 620 ℃, keeping for 28min, extruding the section by using an extrusion die flat plate at 370 ℃ at the moment, and extruding the section repeatedly for 4 times to change the thickness of the section;
s4, heating the section again to 670 ℃, and continuously keeping the temperature for 38min;
s5, repeating the step S3, extruding the section by using an extrusion die flat plate at 475 ℃, and extruding repeatedly for 8 times to further reduce the thickness of the section to be less than 30 mm;
s6, after the section bar is cooled in a natural state, a marking pen is used for marking a rectangular opening surface with the thickness of 50mmX20mm on the outer surface of the section bar;
s7, utilizing a cutting device to perform internal grooving on the section bar according to the scribing area so as to form a non-through internal filling groove in the section bar;
s8, slowly pouring molten aluminum alloy into an inner filling groove formed in the section bar, filling to 89% of the inner volume of the inner filling groove, and waiting for the aluminum alloy to cool in a natural state;
s9, utilizing the remaining section bar cut in the step S1 to carve a rectangular surface with a certain size in the step S6 on the section bar, and utilizing a cutting device to cut a cuboid with a certain size to serve as an outer cover of the section bar;
s10, clamping the outer cover into a groove in the top of the section bar, testing the buckling effect, taking out the outer cover if the buckle is just closed, reserving a 4mm cutting material on the outer side of the outer cover, and marking;
s11, cutting the reserved cutting material, grinding and polishing corners after cutting, and grinding and polishing the processed section to enable the outer surface to be smooth;
s12, searching sealing resin as a sealing material, and blanking the sealing material according to the size standard in S10;
s13, coating a layer of butyl rubber adhesive on the periphery of the sealing material, heating the sealing material to 39 ℃, and adhering the sealing material to the outer surface of the outer cover by using a tool;
s14, finally clamping the outer cover provided with the sealing material into the surface of the section bar, injecting glue into a gap between the outer cover and the section bar, and carrying out sealing and bonding treatment on the outer cover;
s15, naturally drying the sealing glue to obtain a final finished product section, and storing, packaging and storing.
Example 4
The invention provides a technical scheme that: a manufacturing method of a high-precision ultrathin section filled with heat-insulation aluminum alloy comprises the following steps:
s1, searching a section, primarily scribing the section, placing the scribed section on a cutting device to primarily cut the section to form a primary section plate, and keeping the integral rotating speed of the cutting device at 1600r/min;
s2, placing the section in a homogenizing treatment furnace, homogenizing the section, keeping the treatment temperature to 750 ℃, and keeping for 4 hours;
s3, cooling the section in the S2 to 650 ℃, keeping for 30min, extruding the section by using an extrusion die flat plate at 400 ℃, and extruding the section repeatedly for 4 times to change the thickness of the section;
s4, heating the section again at the moment, heating to 700 ℃, and continuously keeping the temperature for 40min;
s5, repeating the step S3, extruding the section by using an extrusion die flat plate at 500 ℃, and extruding repeatedly for 8 times to further reduce the thickness of the section to be less than 30 mm;
s6, after the section bar is cooled in a natural state, a marking pen is used for marking a rectangular opening surface with the thickness of 50mmX20mm on the outer surface of the section bar;
s7, utilizing a cutting device to perform internal grooving on the section bar according to the scribing area, so that a non-through internal filling groove is formed in the section bar;
s8, slowly pouring molten aluminum alloy into an inner filling groove formed in the section bar, filling the molten aluminum alloy to 90% of the inner volume of the inner filling groove, and waiting for the aluminum alloy to be cooled in a natural state;
s9, utilizing the remaining section bar cut in the step S1 to carve a rectangular surface with a certain size in the step S6 on the section bar, and utilizing a cutting device to cut a cuboid with a certain size to serve as an outer cover of the section bar;
s10, clamping the outer cover into a groove in the top of the section bar, testing the buckling effect, taking out the outer cover if the buckle is just closed, reserving a 4mm cutting material on the outer side of the outer cover, and marking;
s11, cutting the reserved cutting material, grinding and polishing corners after cutting, and grinding and polishing the processed section to enable the outer surface to be smooth;
s12, searching sealing resin as a sealing material, and blanking the sealing material according to the size standard in S10;
s13, coating a layer of butyl rubber adhesive on the periphery of the sealing material, heating the sealing material to 40 ℃, and adhering the sealing material to the outer surface of the outer cover by using a tool;
s14, finally clamping the outer cover provided with the sealing material into the surface of the section bar, injecting glue into a gap between the outer cover and the section bar, and carrying out sealing and bonding treatment on the outer cover;
s15, naturally drying the sealing glue to obtain a final finished product section, and storing, packaging and storing.
In the embodiments 3 and 4, the sealing process is provided in the process, the process realizes the sealing of the section bar by uncovering, gluing and cover air drying, can effectively protect the filled internal alloy, has the characteristic of good air tightness for sealing by using butyl rubber, also has the characteristics of heat resistance, aging resistance, corrosion resistance and the like, has the shock absorption and electrical insulation properties, does not crack the seal, and ensures that the synthetic section bar has good use effect.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (9)
1. A manufacturing method of a high-precision ultrathin section filled with heat-insulation aluminum alloy is characterized by comprising the following steps: the method comprises the following steps:
s1, searching a section, primarily scribing the section, placing the scribed section on a cutting device, primarily cutting the section to form a primary section plate, and keeping the integral rotating speed of the cutting device;
s2, placing the section in a homogenizing treatment furnace, homogenizing the section, keeping the treatment temperature to 650-750 ℃, and keeping for 2-4 hours;
s3, cooling the section in the S2 to a certain degree, keeping for a period of time, extruding the section by using an extrusion die flat plate with a certain temperature, and extruding the section repeatedly for a certain number of times to change the thickness of the section;
s4, heating the section again to a certain temperature, and continuously keeping the temperature;
s5, repeating the step S3, extruding the section by using an extrusion die flat plate with a certain temperature, extruding the section repeatedly for a certain number of times, and further reducing the thickness of the section;
s6, after the section bar is cooled in a natural state, a rectangular cutting surface with a certain size is cut on the outer surface of the section bar by using a marking pen;
s7, utilizing a cutting device to perform internal grooving on the section bar according to the scribing area, so that a non-through internal filling groove is formed in the section bar;
s8, slowly pouring molten aluminum alloy into an inner filling groove formed in the section bar, filling the aluminum alloy to a certain internal volume, and waiting for the aluminum alloy to be cooled in a natural state;
s9, utilizing the remaining section bar cut in the step S1 to carve a rectangular surface with a certain size in the step S6 on the section bar, and utilizing a cutting device to cut a cuboid with a certain size to serve as an outer cover of the section bar;
s10, clamping the outer cover into a groove in the top of the section bar, testing the buckling effect, taking out the outer cover if the buckle is just closed, reserving a cutting material with a certain length on the outer side of the outer cover, and marking;
s11, cutting the reserved cutting material, grinding and polishing corners after cutting, and grinding and polishing the processed section to enable the outer surface to be smooth;
s12, searching for a sealing material, and blanking the sealing material according to the size standard in the S10;
s13, coating a layer of viscose on the periphery of the sealing material, heating the sealing material to a certain degree, and adhering the sealing material to the outer surface of the outer cover by using a tool;
s14, finally clamping the outer cover provided with the sealing material into the surface of the section bar, injecting glue into a gap between the outer cover and the section bar, and carrying out sealing and bonding treatment on the outer cover;
s15, after the sealing glue is naturally dried, the final finished product section is obtained, and the section is stored, packaged and stored in a warehouse.
2. The method for manufacturing the high-precision ultrathin section filled with the heat-insulating aluminum alloy is characterized in that in the step S1, the section is searched, the section is subjected to primary scribing, the scribed section is placed on a cutting device to perform primary cutting treatment on the section, the section is cut into a primary section plate, and the integral rotating speed of the cutting device is kept to be 1200-1600r/min.
3. The method for manufacturing the high-precision ultrathin section filled with the heat-insulating aluminum alloy is characterized in that in the step S3, the temperature of the section in the step S2 is reduced to 550-650 ℃, the temperature is kept for 20-30min, a flat plate of an extrusion die at the temperature of 300-400 ℃ is used for extruding the section, and the section is extruded repeatedly for 3-4 times.
4. The method for manufacturing the high-precision ultrathin section filled with the heat-insulating aluminum alloy is characterized in that in the step S4, the temperature of the section is increased again to 600-700 ℃, and the temperature is kept for 30-40min.
5. The method for manufacturing a high-precision ultrathin section filled with heat-insulating aluminum alloy according to claim 1, wherein in the step S5, the step S3 is repeated, the section is extruded by an extrusion die flat plate at 400-500 ℃ for 7-8 times in a reciprocating manner, and the thickness of the section is further reduced to be less than 30 mm.
6. The method for manufacturing a high-precision ultrathin section filled with an inner heat-insulating aluminum alloy as claimed in claim 1, wherein in the step S6, after the section is cooled in a natural state, a marking pen is used for marking a rectangular opening surface of 50mmX20mm on the outer surface of the section.
7. The method for manufacturing a high-precision ultrathin section with internal filling of heat-insulating aluminum alloy as claimed in claim 1, wherein in the step S8, the molten aluminum alloy is slowly filled into an internal filling groove formed in the section, and the molten aluminum alloy is filled to 85-90% of the internal volume of the internal filling groove.
8. The method for manufacturing the high-precision ultrathin section filled with the heat-insulating aluminum alloy is characterized in that in S10, an outer cover is clamped into a groove in the top of the section, the clamping effect is tested, if the clamping is just closed, the outer cover is taken out, a 2-4mm cutting material is reserved on the outer side of the outer cover and marked, in S12, sealing resin is searched for as a sealing material, and the sealing material is blanked according to the size standard in S10.
9. The method for manufacturing the high-precision ultrathin section filled with the heat-insulating aluminum alloy is characterized in that in the step S13, a layer of butyl rubber adhesive is coated on the periphery of the sealing material, the temperature of the sealing material is raised to 30-40 ℃, and the sealing material is adhered to the outer surface of the outer cover by using a tool.
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