CN114570767A - Preparation method of functional material for VC heat dissipation of smart phone - Google Patents
Preparation method of functional material for VC heat dissipation of smart phone Download PDFInfo
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- CN114570767A CN114570767A CN202210171570.1A CN202210171570A CN114570767A CN 114570767 A CN114570767 A CN 114570767A CN 202210171570 A CN202210171570 A CN 202210171570A CN 114570767 A CN114570767 A CN 114570767A
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- 239000000463 material Substances 0.000 title claims abstract description 63
- 230000017525 heat dissipation Effects 0.000 title claims abstract description 43
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 239000010935 stainless steel Substances 0.000 claims abstract description 39
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 39
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 35
- 229910052802 copper Inorganic materials 0.000 claims abstract description 35
- 239000010949 copper Substances 0.000 claims abstract description 35
- 238000005498 polishing Methods 0.000 claims abstract description 22
- 238000000034 method Methods 0.000 claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000012535 impurity Substances 0.000 claims abstract description 11
- 238000001035 drying Methods 0.000 claims abstract description 9
- 238000004140 cleaning Methods 0.000 claims abstract description 6
- 230000003647 oxidation Effects 0.000 claims abstract description 4
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 4
- 230000002265 prevention Effects 0.000 claims abstract 2
- 238000000137 annealing Methods 0.000 claims description 30
- 238000013329 compounding Methods 0.000 claims description 15
- 238000005096 rolling process Methods 0.000 claims description 14
- 230000008569 process Effects 0.000 claims description 12
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 10
- 238000012545 processing Methods 0.000 claims description 10
- 239000007789 gas Substances 0.000 claims description 8
- 229910021529 ammonia Inorganic materials 0.000 claims description 5
- 238000000354 decomposition reaction Methods 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 238000005520 cutting process Methods 0.000 claims description 4
- 239000011261 inert gas Substances 0.000 claims description 4
- 238000004806 packaging method and process Methods 0.000 claims description 4
- 238000003490 calendering Methods 0.000 claims description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims 4
- 229910052757 nitrogen Inorganic materials 0.000 claims 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims 1
- 239000001257 hydrogen Substances 0.000 claims 1
- 229910052739 hydrogen Inorganic materials 0.000 claims 1
- 238000004080 punching Methods 0.000 claims 1
- 229910000881 Cu alloy Inorganic materials 0.000 abstract description 14
- 239000000047 product Substances 0.000 description 22
- 239000002184 metal Substances 0.000 description 8
- 229910052751 metal Inorganic materials 0.000 description 8
- 238000009792 diffusion process Methods 0.000 description 7
- 239000002131 composite material Substances 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 206010063385 Intellectualisation Diseases 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000003749 cleanliness Effects 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000013072 incoming material Substances 0.000 description 2
- 238000007373 indentation Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012805 post-processing Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000005482 strain hardening Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000011573 trace mineral Substances 0.000 description 2
- 235000013619 trace mineral Nutrition 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000011265 semifinished product Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/38—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling sheets of limited length, e.g. folded sheets, superimposed sheets, pack rolling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B47/00—Auxiliary arrangements, devices or methods in connection with rolling of multi-layer sheets of metal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B9/00—Measures for carrying out rolling operations under special conditions, e.g. in vacuum or inert atmosphere to prevent oxidation of work; Special measures for removing fumes from rolling mills
-
- 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
- B21C37/02—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of sheets
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/26—Methods of annealing
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
- C21D9/54—Furnaces for treating strips or wire
- C21D9/56—Continuous furnaces for strip or wire
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/38—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling sheets of limited length, e.g. folded sheets, superimposed sheets, pack rolling
- B21B2001/386—Plates
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
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- Organic Chemistry (AREA)
- Heat Treatment Of Sheet Steel (AREA)
- Heat Treatment Of Articles (AREA)
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Abstract
The invention provides a preparation method of a functional material for VC heat dissipation of a smart phone. The method comprises the following steps: cleaning the surfaces of a pure stainless steel belt and a pure copper belt, wherein the states of the pure stainless steel belt and the pure copper belt are soft, the hardness of the pure stainless steel belt is 150-180HV1.0, the hardness of the pure copper belt is 60-80HV1.0, and after cleaning, surface polishing, impurity removal and oxidation removal are carried out through polishing equipment, and the quality hidden troubles such as material surface drying, water stain/water spot prevention and the like are kept by combining with a drying facility. The heat dissipation functional material prepared by the method provided by the invention adopts pure copper and pure stainless steel, the heat conductivity of copper is superior to that of copper alloy, and the stainless steel has high strength and toughness due to the proportion of the stainless steel, so that the heat dissipation functional material is very suitable for the requirements of smart phones.
Description
Technical Field
The invention relates to a preparation method of a functional material for VC heat dissipation of a smart phone.
Background
With the application of the mobile phone function intellectualization, the quality of life is greatly improved, and the functional requirements of the mobile phone are continuously pursued to have more applications and intellectualization, so that the mobile phone chip is required to provide excellent computing capability. Certainly, high-speed operation and processing generate heat, the higher the operation speed is, the longer the operation time is, the higher the calorific value is, if the heat cannot be dissipated in time, the temperature of the mobile phone will gradually rise, and the safety of the battery and the damage of the chip can be endangered in serious cases, so that the heat dissipation function of the mobile phone is not negligible.
The VC heat dissipation technology enables water in the closed space to generate 'gas-liquid' two-phase conversion, namely, the liquid cooling liquid absorbs heat generated by the mobile phone and then is converted into gas to take away the heat, meanwhile, the gas is converted into liquid at the other end due to temperature reduction and flows back to the heat end, and the temperature of the mobile phone is further well reduced.
At present, the best heat dissipation material in the mobile phone is mainly copper alloy, and the copper alloy has good welding performance, good heat dissipation performance and certain strength and toughness, but with the improvement of the high-speed operation capacity of the 5G mobile phone, a better heat dissipation material is needed. On the other hand, the mobile phone is also required to be thinner, so that the heat dissipation material is required to have good strength and toughness, and the mobile phone is ensured not to deform in the using process. Copper alloys do not meet the development requirements of intelligence in strength and heat dissipation efficiency.
In summary, the conventional heat dissipation material has a general heat dissipation performance; the copper alloy has insufficient rigidity and is easy to deform; after the temperature of the copper alloy is raised, the external copper is easy to rust, so that the heat dissipation performance of the material is influenced; the copper alloy has low thermal conductivity; the copper alloy has low diffusion welding performance; in a too thin state, the copper alloy has no rigidity and cannot complete the heat dissipation function.
Disclosure of Invention
Based on the above, the invention provides a preparation method of a functional material for VC heat dissipation of a smart phone, the prepared heat dissipation functional material adopts pure copper and pure stainless steel, the heat conductivity of the copper is superior to that of copper alloy, and the stainless steel has high strength and toughness due to the proportion of the stainless steel, so that the material is very suitable for the requirements of the smart phone.
The invention discloses a preparation method of a VC heat dissipation functional material for a smart phone, which comprises the following steps: step one, pure stainless steel belt 316/316L (thickness 0.8-3.0mm, width 100-. Before processing, the surfaces of the two materials need to be cleaned, otherwise, the strength of the joint surface is greatly influenced, and proper polishing equipment is selected as processing equipment. The two raw materials are subjected to surface polishing and impurity removal and oxidation removal through polishing equipment, and the surface of the material is kept dry by combining a drying facility, so that the potential quality hazards such as water stain/water spot are avoided;
step two, calendering and compounding the two materials obtained in the step one through a pressure compounding machine, wherein two copper strips are arranged at two sides, a stainless steel strip is arranged in the middle, three strips are compounded together, a certain heat energy is provided for the stainless steel strip, and the temperature is controlled at 400-800 ℃; the temperature of the copper strip is controlled at 150 ℃ and 300 ℃, so that the two materials are compounded into a whole, and the qualified standard is that the end faces of the compounded materials are not separated after being broken back and forth at 90 degrees. In order to prevent impurities/oxides from appearing between the two materials, inert gas (N2) or ammonia decomposition gas (N2, H2) is introduced into the composite section to ensure the cleanliness between the materials and avoid generating substances with poor plasticity so as not to influence the bonding strength of the materials. The second step is one of the key technical points of the invention, and the thickness, the width and the state of the incoming material are strictly controlled;
and step three, the strip compounded in the step two is subjected to surface polishing treatment in a polishing treatment machine to remove impurities generated on the surface in the compounding process so as to eliminate surface defects (such as scratches, indentations, pits and the like) of the product in the post-processing process. After polishing, annealing treatment is carried out in a bright continuous annealing furnace, the annealing temperature range is between 800 ℃ and 1100 ℃, and the proper annealing temperature can be selected according to different deformation amounts. The annealing mainly aims to ensure that the crossed interfaces are combined more tightly through the diffusion of atoms among materials, so that the composite strength of the product is enhanced;
and step four, carrying out multiple rolling treatment on the material obtained in the step three on a multi-roll rolling machine until the thickness of the material is close to the thickness requirement of the product, and controlling the surface hardness of the strip through annealing and deformation according to the requirement of the product. In the fourth step, multiple intermediate annealing is needed, the annealing temperature range is between 800 ℃ and 1100 ℃, and the aim is to eliminate work hardening;
step five, rolling the strip in the step four to the thickness of a finished product of 0.05-0.15mm, annealing the finished product, and returning the finished product to the hardness value required by a client according to different requirements of the client, wherein the annealing temperature is 400-;
and step six, straightening the strip material obtained in the step five in a strip shape on a precision straightening machine to meet the requirements of customers, finally cutting, packaging and warehousing, and sending to a stamping factory for processing and manufacturing subsequent VC radiating fins.
Compared with the prior art, the preparation method of the functional material for VC heat dissipation of the smart phone, disclosed by the invention, has the advantages that the smelted pure metal is compounded, the performances of stainless steel and copper are integrated, the advantages and the advantages are respectively exerted, the product has the same strength as copper alloy, and meanwhile, the heat dissipation and the heat conduction performance of pure copper are greater than those of the copper alloy, so that the product has more advantages in a heat dissipation system of the smart phone; in addition, the heat dissipation and heat conduction performances can be adjusted by adjusting the thickness ratio of pure copper to pure stainless steel, the adjustment is flexible in process, only the thickness of the metal before compounding needs to be changed, the content and influence of trace elements need to be continuously adjusted during smelting, and the method is complex and high in development cost; the stainless steel surface can not generate corrosion phenomenon even under the environment of temperature rise, has no phenomenon of influencing the heat dissipation effect, is the characteristic of long-term stability, and can not change along with the lapse of time.
The preparation method of the VC heat dissipation functional material for the smart phone fully utilizes the principle of plastic deformation of metal and atomic diffusion between metals, combines a pure stainless steel band and a pure copper band into a whole through a certain positive pressure and mechanical occlusion, processes the stainless steel band and the pure copper band into a whole to a certain thickness, meets the performance requirement, and finally carries out the process technologies of stamping, diffusion welding and the like to manufacture heat dissipation structures and shapes required by different mobile phones. The invention relates to a heat dissipation material, and a product manufactured by the invention has high heat dissipation performance and high rigidity and toughness, wherein the thickness of a copper layer is 0.01-0.05mm, and the thickness of a stainless steel layer is 0.04-0.01 mm.
Detailed Description
In order that the invention may be more fully understood, reference will now be made to the following examples. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
The invention provides a preparation method of a VC heat dissipation functional material for a smart phone, which comprises the following steps: step one, pure stainless steel belt 316/316L (thickness 0.8-3.0mm, width 100-. Before processing, the surfaces of the two materials need to be cleaned, otherwise, the strength of the joint surface is greatly influenced, and proper polishing equipment is selected as processing equipment. The two raw materials are subjected to surface polishing and impurity removal and oxidation removal through polishing equipment, and the surface of the material is kept dry by combining a drying facility, so that the potential quality hazards such as water stain/water spot are avoided;
step two, calendering and compounding the two materials obtained in the step one through a pressure compounding machine, wherein two copper strips are arranged at two sides, a stainless steel strip is arranged in the middle, three strips are compounded together, a certain heat energy is provided for the stainless steel strip, and the temperature is controlled at 400-800 ℃; the temperature of the copper strip is controlled at 150 ℃ and 300 ℃, so that the two materials are compounded into a whole, and the qualified standard is that the end faces of the compounded materials are not separated after being broken back and forth at 90 degrees. In order to prevent impurities/oxides from appearing between the two materials, inert gas (N2) or ammonia decomposition gas (N2, H2) is introduced into the composite section to ensure the cleanliness between the materials and avoid generating substances with poor plasticity so as not to influence the bonding strength of the materials. The second step is one of the key technical points of the invention, and the thickness, the width and the state of the incoming material are strictly controlled;
and step three, the strip compounded in the step two is subjected to surface polishing treatment in a polishing treatment machine to remove impurities generated on the surface in the compounding process so as to eliminate surface defects (such as scratches, indentations, pits and the like) of the product in the post-processing process. After polishing, annealing treatment is carried out in a bright continuous annealing furnace, the annealing temperature range is between 800 ℃ and 1100 ℃, and the proper annealing temperature can be selected according to different deformation amounts. The annealing mainly aims to ensure that the crossed interfaces are combined more tightly through the diffusion of atoms among materials, so that the composite strength of the product is enhanced;
and step four, carrying out multiple rolling treatment on the material obtained in the step three on a multi-roll rolling machine until the thickness of the material is close to the thickness requirement of the product, and controlling the surface hardness of the strip through annealing and deformation according to the requirement of the product. In the fourth step, multiple intermediate annealing is needed, the annealing temperature range is between 800 ℃ and 1100 ℃, and the aim is to eliminate work hardening;
step five, rolling the strip in the step four to the thickness of a finished product of 0.05-0.15mm, annealing the finished product, and returning the finished product to the hardness value required by a client according to different requirements of the client, wherein the annealing temperature is 400-;
and step six, straightening the strip material obtained in the step five in a strip shape on a precision straightening machine to meet the requirements of customers, finally cutting, packaging and warehousing, and sending to a stamping factory for processing and manufacturing the VC cooling fins in the subsequent step.
Compared with the prior art, the preparation method of the functional material for VC heat dissipation of the smart phone, disclosed by the invention, has the advantages that the smelted pure metal is compounded, the performances of stainless steel and copper are integrated, the advantages and the advantages are respectively exerted, the product has the same strength as copper alloy, and meanwhile, the heat dissipation and the heat conduction performance of pure copper are greater than those of the copper alloy, so that the product has more advantages in a heat dissipation system of the smart phone; in addition, the heat dissipation and heat conduction performances can be adjusted by adjusting the thickness ratio of pure copper to pure stainless steel, the adjustment is flexible in process, only the thickness of the metal before compounding needs to be changed, the content and influence of trace elements need to be continuously adjusted during smelting, and the method is complex and high in development cost; the stainless steel surface can not generate corrosion phenomenon even under the environment of temperature rise, has no phenomenon of influencing the heat dissipation effect, is the characteristic of long-term stability, and can not change along with the lapse of time.
The preparation method of the VC heat dissipation functional material for the smart phone fully utilizes the principle of plastic deformation of metal and atomic diffusion between metals, combines a pure stainless steel band and a pure copper band into a whole through a certain positive pressure and mechanical occlusion, processes the stainless steel band and the pure copper band into a whole to a certain thickness, meets the performance requirement, and finally carries out the process technologies of stamping, diffusion welding and the like to manufacture heat dissipation structures and shapes required by different mobile phones. The invention relates to a heat dissipation material, and a product manufactured by the invention has high heat dissipation performance and high rigidity and toughness, wherein the thickness of a copper layer is 0.01-0.05mm, and the thickness of a stainless steel layer is 0.04-0.01 mm.
For example, in one embodiment, a preparation method of a VC heat dissipation function material for a smart phone is provided, which includes the following steps:
step one, stainless steel band: 1.0 × 150mm, HV1.0:160, volume 1; copper strip: 0.6X 150mm, HV1.0:70, volume 1; polishing the surfaces of the two strips on a polishing machine, washing the polished strips with hot water, and drying the polished strips with hot air to ensure that the surfaces have no impurities, water spots and the like;
and step two, compounding on a two/four-roller rolling compounding machine, wherein the copper belt is arranged on the upper layer, and the stainless steel belt is arranged on the lower layer for compounding. The temperature of the stainless steel belt is controlled at 700 ℃, the temperature deviation is +/-5 ℃, the temperature of the copper belt is controlled at 180 ℃, the temperature deviation is +/-5 ℃, and ammonia decomposition gas (N) is introduced before the strip enters the roller2、H2) The protection is carried out, and the gas flow is controlled to be 7Nm3The outlet thickness of the compound machine is 1.0mm, the compound material taking tail is broken at 90 degrees after being subjected to compound material taking, the section is free of separation, and the compound strength is qualified;
and step three, cleaning the black impurities, chips, lines and other defects on the surface of the compounded strip material, which affect the surface of the finished product at the later stage, by using a polishing machine, and simultaneously performing drying treatment by using hot water and a drying facility. After cleaning, carrying out heat treatment in a bright annealing furnace at 950 ℃ and 1m/min, mainly eliminating the processing hardness of the strip and facilitating the later cold processing;
step four, carrying out back-and-forth rolling on a precision rolling mill after annealing, wherein the rolling is carried out for 15 times, and the semi-finished product is required to be annealed and then rolled in the rolling process until the thickness of the rolled product is 0.1 mm;
step five, annealing the strip in the step four at 950 ℃, and keeping the hardness of the stainless steel strip controlled to be HV1.0: 190;
step six, flattening the strip shape of the strip material obtained in the step five on a precision straightening machine, wherein the warping degree is controlled to be 5 i;
and seventhly, cutting, packaging and warehousing according to the width requirements of customers.
The above examples only express embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that various changes and modifications can be made by those skilled in the art without departing from the spirit of the invention, and these changes and modifications are all within the scope of the invention. Therefore, the protection scope of the present patent should be subject to the appended claims.
Claims (3)
1. A preparation method of a VC heat dissipation functional material for a smart phone is characterized by comprising the following steps: the method comprises the following steps: cleaning the surfaces of a pure stainless steel belt and a pure copper belt, wherein the states of the pure stainless steel belt and the pure copper belt are soft, the hardness of the pure stainless steel belt is 150-180HV1.0, the hardness of the pure copper belt is 60-80HV1.0, and after cleaning, polishing and impurity removal and oxidation removal are carried out through polishing equipment, and the quality hidden troubles such as material surface drying, water mark/water spot prevention and the like are kept in combination with a drying facility;
step two, calendering and compounding the two materials obtained in the step one by a pressure compounding machine, wherein two copper strips are arranged at two sides, a stainless steel strip is arranged in the middle, and three strips are compounded together, and simultaneously, certain heat energy is provided for the stainless steel strip, the temperature is controlled to be 800 ℃ for 400 plus materials, the temperature of the copper strips is controlled to be 300 ℃ for 150 plus materials, so that the two materials are compounded into a whole, and inert gas or ammonia decomposition gas is introduced into a compounding section;
step three, the strip compounded in the step two is subjected to surface polishing treatment in a polishing treatment machine to remove impurities generated on the surface in the compounding process, and annealing treatment is carried out in a bright continuous annealing furnace after the polishing treatment, wherein the annealing temperature range is 800-1100 ℃;
step four, performing multiple rolling treatment on the material obtained in the step three on a multi-roll rolling machine, wherein the surface hardness of the strip is controlled through multiple annealing and deformation, and the annealing temperature range is 800-1100 ℃;
step five, rolling the strip material obtained in the step four to the thickness of a finished product of 0.05-0.15mm, and then annealing the finished product at the annealing temperature of 400-1100 ℃;
and step six, straightening the strip material obtained in the step five in a strip shape on a precision straightening machine, finally cutting, packaging and warehousing, and sending to a punching mill for processing and manufacturing subsequent VC radiating fins.
2. The method for preparing VC heat dissipation functional material for smart phones according to claim 1, wherein the method comprises the following steps: the pure stainless steel strip is 1 roll, the thickness of the pure stainless steel strip is 0.8-3.0mm, the width of the pure stainless steel strip is 100-250mm, the pure copper strip is 2 rolls, the thickness of the pure copper strip is 0.5-1.0mm, and the width of the pure copper strip is 100-250 mm.
3. The method for preparing VC heat dissipation functional material for smart phones according to claim 2, wherein the method comprises the following steps: the inert gas is nitrogen, and the ammonia decomposition gas is nitrogen or hydrogen.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107809881A (en) * | 2017-06-13 | 2018-03-16 | 奇鋐科技股份有限公司 | Heat abstractor and its manufacture method |
| DE102017122508A1 (en) * | 2017-06-30 | 2019-01-03 | Asia Vital Components Co., Ltd. | Heat dissipation device and manufacturing method thereof |
| CN112895623A (en) * | 2021-02-04 | 2021-06-04 | 安徽鑫稻新能源科技有限公司 | Functional material for heat dissipation of mobile phone chip and processing technology thereof |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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