Preparation method of sub-catchment device, sub-catchment device and heat dissipation control system

Abstract

The invention discloses a preparation method of a water distributing and collecting device, the water distributing and collecting device and a heat dissipation control system, and belongs to the technical field of metallurgical engineering. The method comprises the steps that molten aluminum alloy is prepared, the molten aluminum alloy is poured into a casting mold, and an aluminum alloy cast ingot is formed after cooling; the aluminum alloy cast ingot is subjected to hot rolling through a semi-solid hot rolling process, and an aluminum alloy cast rod is obtained; the aluminum alloy casting rod is subjected to extrusion forming, and a water dividing and collecting device profile is obtained; carrying out solid solution heat treatment and aging treatment on the sub-catchment device profile; and welding and assembling the sub-catchment profile subjected to solid solution heat treatment and aging treatment to generate a finished sub-catchment product. By adding the corrosion-resistant rare earth elements and through heat treatment, rolling and extrusion forming, the water dividing and collecting device which is excellent in corrosion resistance and high in mechanical property in the cooling liquid can be produced.

Description

Technical Field

[0001] The present application relates to the field of metallurgical engineering technology, and more specifically, to a method for preparing a manifold, a manifold and a heat dissipation control system. Background Art

[0002] The manifolds used in current liquid-cooled servers are mostly made of stainless steel, and the manifolds are divided into two independent manifold pipes. The components are heavy and cannot meet the requirements of rapid transportation or disassembly.

[0003] At the same time, the coolant used in liquid-cooled servers contains a corresponding proportion of ethylene glycol solution. Ethylene glycol coolant has low corrosion resistance. If it is used for too long, after the corresponding chemical reaction, it will produce substances such as glycolic acid and oxalic acid, which will cause a certain degree of corrosion to the water distributor equipment. Summary of the invention

[0004] In order to overcome the above-mentioned technical defects, the purpose of the present application is to provide a preparation method of a manifold, a manifold and a heat dissipation control system, the method comprising: configuring an aluminum alloy melt and making the aluminum alloy melt include the following elements in percentage by mass: copper: 0.8%~1.0%, magnesium: 0.8%~1.2%, silicon: 0.4%~0.8%, zirconium: 0.1%~0.2%, cerium: 0.061%~0.08%, and the rest being aluminum; pouring the molten aluminum alloy melt into a casting mold, and forming an aluminum alloy ingot after cooling; hot rolling the aluminum alloy ingot through a semi-solid hot rolling process to obtain an aluminum alloy cast rod; extruding the aluminum alloy cast rod to obtain a manifold profile; performing a solution heat treatment and an aging treatment on the manifold profile; welding and assembling the manifold profile after the solution heat treatment and the aging treatment to generate a manifold finished product. The present application adds corrosion-resistant rare earth elements and produces an aluminum alloy manifold with excellent corrosion resistance and high mechanical properties in coolant through heat treatment, rolling and extrusion molding.

[0005] In a first aspect, the present application provides a method for preparing a manifold, the method comprising: The aluminum alloy melt is configured to include the following elements in percentage by mass: copper: 0.8%-1.0%, magnesium: 0.8%-1.2%, silicon: 0.4%-0.8%, zirconium: 0.1%-0.2%, cerium: 0.061%-0.08%, and the rest is aluminum; The molten aluminum alloy is poured into a casting mold and cooled to form an aluminum alloy ingot; Hot rolling the aluminum alloy ingot by a semi-solid hot rolling process to obtain an aluminum alloy cast rod; Extruding the aluminum alloy cast rod to obtain a manifold profile; Carry out solution heat treatment and aging treatment on the manifold profiles; The manifold profiles after solution heat treatment and aging treatment are welded and assembled to produce the manifold finished product.

[0006] Optionally, the aluminum alloy melt is configured, including: Add pure metal aluminum ingots into the smelting furnace, heat the smelting furnace to 700℃~710℃, then add pure metal magnesium ingots and pure metal silicon ingots into the pure metal aluminum melt, stir them evenly after the pure metal magnesium ingots and pure metal silicon ingots are melted, heat the smelting furnace to 730℃~740℃, then add trialuminum zirconium alloy and rare earth element cerium ingots into the melt to refine the aluminum alloy melt.

[0007] Optionally, the aluminum alloy ingot is hot rolled by a semi-solid hot rolling process, comprising: Add the aluminum alloy ingot into the industrial furnace, heat the industrial furnace to 520°C~550°C, heat treat the aluminum alloy ingot, and cool the industrial furnace to 500°C; The cooled aluminum alloy ingot is added into a rolling mill for hot rolling; Among them, the rolling passes are 6 to 8 passes, and the elongation coefficient of each rolling pass is between 1.05 and 1.3; the roller temperature is 460°C to 480°C.

[0008] Optionally, the heat treatment time of the aluminum alloy ingot is 2h~3h; The reduction in the first hot rolling pass is 30%~50%, and the reduction in the subsequent rolling passes gradually decreases to 10%~20%.

[0009] Optionally, the aluminum alloy cast rod is extruded to obtain a manifold profile, including: Performing stress relief annealing treatment on the aluminum alloy cast bars after hot rolling; The aluminum alloy casting rod after stress relief annealing is placed in a forward extruder, and the aluminum alloy casting rod is extruded through an extrusion die to obtain a manifold profile; Among them, the temperature of the aluminum alloy casting rod, the extrusion barrel temperature of the extruder and the temperature of the extrusion die are all 400℃~420℃, and the outlet temperature of the extruder is 480℃~520℃.

[0010] Optionally, the temperature of the hot-rolled aluminum alloy cast bar for stress relief annealing is 400°C to 420°C and the time is 1h to 2h; The extrusion ratio of aluminum alloy cast rod extrusion molding is 10~15, and the extrusion speed is 6mm / s~8mm / s.

[0011] Optionally, the manifold profile is subjected to solution heat treatment and artificial aging treatment, including: The manifold profile is subjected to solution heat treatment and water cooling quenching, wherein the solution heat treatment temperature is 540°C~550°C and the time is 1h~1.5h; The manifold profile is artificially aged, wherein the artificial aging temperature is 150°C~160°C and the time is 12h~13h.

[0012] Optionally, the manifold profiles are welded and assembled before the manifold is finished, including: Electrolytic polishing and passivation treatment are performed on the manifold profiles after solution heat treatment and artificial aging treatment; Electrolytic polishing and passivation treatment are performed on the manifold profiles after solution heat treatment and artificial aging treatment, including: Electroplating chrome or nickel coating on the surface of the manifold profile, and polishing the surface of the manifold profile by mechanical or chemical methods; An oxide film is formed on the surface of the manifold profile by anodizing.

[0013] Optionally, the manifold profile after passivation treatment is welded and assembled to produce a manifold finished product, including: Aluminum alloy plates of the same material and thickness as the manifold profile are used to weld the openings at both ends of the manifold profile, and the ventilation holes in the middle of the manifold profile are retained; Drill holes in the water distribution pipeline and main water pipeline of the manifold profile and set up pipeline branches; The hole interfaces of the main water pipeline and the water distribution pipeline are threadedly connected with the quick-connect plug with a hose to produce a finished manifold.

[0014] Optionally, the length of the manifold profile is 500mm~700mm, the width is 100mm~200mm, the height is 50mm~60mm, and the wall thickness of the manifold profile is 5mm~6mm; The verticality between the quick-connect joint connecting the manifold pipe and the manifold surface is ≤0.1mm.

[0015] In a second aspect, the present application provides a manifold, which is prepared according to any method for preparing a manifold according to the first aspect.

[0016] In a third aspect, the present application provides a heat dissipation control system, the heat dissipation control system comprising a processor, a radiator, a water pump, and a manifold produced according to any method for preparing a manifold according to the first aspect, the manifold comprising a main water inlet, a plurality of branch water outlets, a main water outlet, and a plurality of branch water inlets; The processor is connected to several water inlets of the manifold, the main water outlet of the manifold is connected to the cold row, the cold row is connected to the water pump, the water pump is connected to the main water inlet of the manifold, and several water outlets of the manifold are connected to the processor.

[0017] Compared with the prior art, the preparation method of the manifold and the manifold provided by the present application achieve at least the following beneficial effects: The technical solution provided in the embodiment of the present application can produce an aluminum alloy manifold with excellent corrosion resistance and high mechanical properties in the coolant by adding corrosion-resistant rare earth elements, and undergoing heat treatment, rolling and extrusion molding, thereby reducing the weight while ensuring the mechanical properties; the present application involves a process that combines deformation and heat treatment of aluminum alloy materials, which takes advantage of the fact that the aluminum alloy is light in weight and occupies little space, and meets the requirements of the mechanical properties of the outlet pipe and the return pipe; at the same time, through the integrated pipeline design, the position of the cold plate liquid cooling server can be flexibly adjusted to improve operational efficiency.

[0018] Of course, any product implementing this application does not necessarily need to achieve all of the above technical effects at the same time.

[0019] Other features and advantages of the present application will become apparent from the following detailed description of exemplary embodiments of the present application with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the application and, together with the description, serve to explain the principles of the application.

[0021] Figure 1 It is a flow chart of the preparation method of the manifold provided by the present application; Figure 2 It is the structural diagram of the manifold; Figure 3 It is a cross-sectional view of the manifold profile; Figure 4 It is a schematic diagram of the heat dissipation control system; Figure 5 It is a data collection flow chart; Figure 6 is a flow chart of the heat dissipation control method; Figure annotation: 1. Main water outlet; 2. Branch water inlet; 3. Main water inlet; 4. Branch water outlet; 5. Heat dissipation fins; 6. Sub-manifold; 7. First pipeline; 8. Second pipeline; 9. Ventilation pipeline. DETAILED DESCRIPTION

[0022] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangement of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present application.

[0023] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present application, its application, or uses.

[0024] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0025] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0026] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0027] It is understandable that ethylene glycol has the advantages of low freezing point, low cost and large heat capacity. It mainly serves as a cooling medium for industrial equipment. The coolant used in server cold plate liquid cooling contains a corresponding proportion of ethylene glycol solution. Ethylene glycol coolant has low corrosion resistance. If it is used for too long, after the corresponding chemical reaction, it will produce substances such as glycolic acid and oxalic acid, so it may cause a certain degree of corrosion to the equipment.

[0028] In the cold plate liquid cooling server room, a rack-mounted liquid cooling-air cooling capacity distribution controller (CDU device) is used to ensure that the heat of the coolant can be quickly cooled after passing through the CDU device. However, the CDU device is generally large in size, and the height is generally 2U or 4U. During the testing process before the server development and finalization, one or two cold plate servers are connected to the CDU device for testing, installation and debugging. The steps are cumbersome and not conducive to transportation. In addition, the manifolds used in the coolant circulation pipeline are mostly made of stainless steel. The manifold pipes are used for the outlet pipe and the return pipe respectively, so the components are more and heavier, and the requirements for rapid transportation or disassembly cannot be met.

[0029] Here, the rack-mounted liquid cooling-air cooling capacity distribution controller: the device provides circulation power for the liquid cooling coolant for the liquid cooling server through the built-in water pump, and the built-in silent fan reduces the temperature of the coolant by air cooling through the heat exchanger, and then discharges the heat into the computer room; the standard CDU controller is used to provide real-time monitoring of the system's temperature and pressure to meet the liquid cooling server's requirements for coolant temperature and pressure.

[0030] The height of a server is usually calculated in "U" units, where 1U is equal to 44.45 mm (1.75 inches). The server height unit "U" is used to standardize the height of servers and cabinets to enable compatibility and efficient use of space. Common server heights include 1U, 2U, 3U, and 4U.

[0031] The present application proposes a method for processing, preparing and forming an aluminum alloy manifold, which involves a process combining deformation and heat treatment of aluminum alloy materials, giving full play to the advantages of aluminum alloy being light in weight, occupying little space, and meeting the requirements of mechanical properties of outlet pipes and return pipes; through the integrated pipeline design, the position of the cold plate liquid cooling server can be flexibly adjusted.

[0032] like Figure 1 As shown, the present application provides a method for preparing a manifold, the method comprising: Step S1: preparing an aluminum alloy melt so that the aluminum alloy melt includes the following elements in percentage by mass: copper: 0.8%-1.0%, magnesium: 0.8%-1.2%, silicon: 0.4%-0.8%, zirconium: 0.1%-0.2%, cerium: 0.061%-0.08%, and the rest is aluminum; Step S2: pouring the molten aluminum alloy into a casting mold and forming an aluminum alloy ingot after cooling; Step S3: hot rolling the aluminum alloy ingot by a semi-solid hot rolling process to obtain an aluminum alloy cast rod; Step S4: Extruding the hot-rolled aluminum alloy cast rod to obtain a manifold profile; Step S5: performing solution heat treatment and artificial aging treatment on the manifold profile; Step S6: welding and assembling the manifold profiles after the solution heat treatment and artificial aging treatment to produce a manifold finished product.

[0033] Specifically, the Al-Cu-Mg-Si alloy of the present application is mainly composed of the following components, and the chemical composition is as follows by mass percentage: Cu: 0.8%~1.0%, Mg: 0.8%~1.2%, Si: 0.4%~0.8%, Zr: 0.1%~0.2%, Ce: 0.061%~0.08%, and the rest is Al. Adding a trace amount of rare earth element Ce can refine the grains. In the range of 0.061%~0.08%, as the addition amount of rare earth element Ce increases, the size of α-Al grains and eutectic Si phases gradually decreases, grain refinement occurs, and mechanical properties gradually increase.

[0034] Optionally, add pure metal aluminum ingots into a smelting furnace, heat the smelting furnace to 700℃~710℃, add pure metal magnesium ingots and pure metal silicon ingots into the pure metal aluminum melt, stir them evenly after the pure metal magnesium ingots and pure metal silicon ingots are melted, heat the smelting furnace to 730℃~740℃, add zirconium aluminide Al3Zr alloy and rare earth element cerium ingots into the melt to refine the aluminum alloy melt.

[0035] Specifically, semi-continuous DC casting is adopted: pure metallic aluminum is added into a smelting furnace, the temperature of the smelting furnace is raised to 700℃~710℃, pure metallic magnesium and silicon are added, and after the pure metallic magnesium and silicon are melted and stirred evenly, the temperature of the smelting furnace is raised to 730℃~740℃, and Al3Zr intermediate alloy and Ce rare earth element are added, and finally refined and cast using DC casting method to obtain cast rods.

[0036] Optionally, the molten aluminum alloy is poured into a casting mold and cooled to form an aluminum alloy ingot; continuous casting technology is used to improve production efficiency and reduce ingot defects; electromagnetic casting technology is used to improve the surface quality and internal structure of the ingot; cooling water flow and temperature are optimized to reduce internal stress and cracks in the ingot; Optimize cooling water flow: Control cooling water flow in sections. Use a larger cooling water flow at the upper part of the aluminum alloy ingot (near the pouring port) to quickly reduce the surface temperature and form a uniform solidified shell. Gradually reduce the cooling water flow at the lower part of the ingot to avoid internal stress concentration caused by too fast cooling. Dynamically adjust the flow. Use a flow sensor to monitor the cooling water flow in real time. Dynamically adjust according to the temperature change of the ingot. Introduce an automated control system to automatically adjust the cooling water flow according to the preset cooling curve. Evenly distribute cooling water. Optimize cooling water temperature: Control cooling water temperature, which is usually controlled between 20℃-40℃ to avoid excessively high or low temperatures. Use a constant temperature cooling system to keep the cooling water temperature stable. Control the temperature in sections. Use lower temperature cooling water in the high temperature area of ​​the ingot (such as near the pouring gate) to quickly take away the heat. Use higher temperature cooling water in the low temperature area of ​​the ingot (such as the bottom) to slow down the cooling speed and preheat the cooling water. Optimizing cooling water flow and temperature requires multiple aspects such as segmented control, dynamic adjustment, uniform distribution, temperature control, cooling process, equipment system, process parameters and operation and maintenance. By rationally designing the cooling process, introducing intelligent control systems and strengthening operation management, the internal stress and cracks of the ingot can be effectively reduced, and product quality and production efficiency can be improved.

[0037] Optionally, the aluminum alloy ingot is added into an industrial furnace, and the temperature of the industrial furnace is heated to 520° C. to 550° C., the aluminum alloy ingot is heat treated, and the industrial furnace is cooled to 500° C.; The cooled aluminum alloy ingot is added into a rolling mill for hot rolling; Among them, the rolling passes are 6 to 8 passes, and the elongation coefficient of each rolling pass is between 1.05 and 1.3; the roller temperature is 460°C to 480°C.

[0038] Specifically, the present application adopts a semi-solid hot rolling process, with a heat treatment temperature of 520°C~550°C, a heat treatment time of 2h~3h, and rolling parameters: 6~8 rolling passes, the roll temperature is controlled at 460°C~480°C, the elongation coefficient of each pass is 1.05~1.3, a large reduction amount is selected for the first rolling pass, and a lower reduction amount is selected for subsequent passes (for example, the reduction amount for the first pass can reach 30%~50%, and the subsequent passes gradually decrease to 10%~20%).

[0039] Optionally, the heat treatment time of the aluminum alloy ingot is 2h~3h; The reduction in the first hot rolling pass is 30%~50%, and the reduction in the subsequent rolling passes gradually decreases to 10%~20%.

[0040] Specifically, it first undergoes hot rolling. During hot rolling, the metal has high plasticity and low deformation resistance. Hot rolling uses large reduction rolling to improve production efficiency. The hot rolling process uses high-temperature processing to break up the coarse grains in the casting state, heal micro cracks, reduce casting defects, transform the cast structure into a deformed structure, and at the same time repair the microscopic defects on the surface.

[0041] Optionally, the aluminum alloy cast bar after hot rolling is subjected to stress relief annealing treatment; The aluminum alloy casting rod after stress relief annealing is placed in a forward extruder, and the aluminum alloy casting rod is extruded through an extrusion die to obtain a manifold profile; Among them, the temperature of the aluminum alloy casting rod, the extrusion barrel temperature of the extruder and the temperature of the extrusion die are all 400℃~420℃, and the outlet temperature of the extruder is 480℃~520℃.

[0042] Optionally, the temperature of the hot-rolled aluminum alloy cast bar for stress relief annealing is 400°C to 420°C and the time is 1h to 2h; The extrusion ratio of aluminum alloy cast rod extrusion molding is 10~15, and the extrusion speed is 6mm / s~8mm / s.

[0043] Specifically, the hot-rolled aluminum alloy rolled bars are put into a forward extruder for extrusion process. The rolled cast bars are first subjected to stress relief annealing heat treatment at a temperature of 400°C~420°C for 1h~2h. The temperature of the cast bars, the extrusion barrel, and the extrusion die are controlled at 400°C~420°C, the extrusion ratio is 10~15, the extrusion speed is 6mm / s~8mm / s, the outlet temperature of the extruder is controlled at 480°C~520°C, and air cooling is performed.

[0044] Optionally, the manifold profile is subjected to solution heat treatment and water cooling quenching, wherein the solution heat treatment temperature is 540°C to 550°C and the time is 1h to 1.5h; The manifold profile is artificially aged, wherein the artificial aging temperature is 150°C~160°C and the time is 12h~13h.

[0045] Specifically, after the aluminum alloy manifold is formed, it is subjected to solution heat treatment, water quenching, and then artificial aging; here, the solution heat treatment process is: solution temperature 540°C, time 1h, artificial aging temperature 150°C, time 12h; after the solution aging heat treatment, the aluminum alloy manifold is subjected to surface treatment and welding process.

[0046] Here, after extrusion molding, a solution aging heat treatment process is added to further increase the mechanical properties of the aluminum alloy manifold profile.

[0047] Optionally, a chrome or nickel coating is electroplated on the surface of the manifold profile, and the surface of the manifold profile is polished by a mechanical or chemical method; An oxide film is formed on the surface of the manifold profile by anodizing.

[0048] Specifically, aluminum alloy cast rods need to undergo electrolytic polishing and passivation treatment after extrusion molding; electrolytic oxidation: that is, anodizing, an oxide film is formed on the surface of the aluminum alloy profile after the anodizing reaction. The oxide film has the functions of coloring the surface, enhancing the hardness of the aluminum alloy, and anti-corrosion protection.

[0049] Optionally, the openings at both ends of the manifold profile are welded by aluminum alloy plates of the same material and thickness as the manifold profile, and the ventilation hole in the middle of the manifold profile is retained; Drill holes in the water distribution pipeline and water collection pipeline of the manifold profile and set up pipeline branches; The hole interfaces of the water collection pipeline and the water distribution pipeline are threadedly connected with the quick-connect plug with a hose to produce a finished product of the water distribution and collection device.

[0050] Optionally, the length of the manifold profile is 500mm~700mm, the width is 100mm~200mm, the height is 50mm~60mm, and the wall thickness of the manifold profile is 5mm~6mm; The verticality between the quick-connect plug of the manifold pipe connection and the manifold surface is ≤0.1mm, making the interface connection between the main pipe and the branch pipe of the manifold more stable.

[0051] Specifically, Figure 2 , 3As shown, after the manifold profile is treated by electrolytic oxidation, the two ends of the manifold are welded with an aluminum alloy plate of the same material and thickness as the manifold profile, and the ventilation hole in the middle of the manifold profile is retained. After welding, holes are drilled in the first pipeline and the second pipeline of the manifold in turn. The branch of each side of the pipeline is 2~3 ports, and the interface of the branch is welded and encapsulated with a quick-connect female head; the connection method of the manifold: the main pipeline and the quick-connect connector with a hose are threaded; the branch pipeline and the quick-plug connector are threaded; the hose and the quick-plug connector are connected with a quick clamp; after the manifold is completed, red and blue logos are set at the interface to distinguish the water outlet (blue logo) and the water inlet (red logo).

[0052] On the other hand, Figure 2 As shown, the present application provides a manifold, which is prepared according to the following method for preparing a manifold, and the method for preparing a manifold includes: The aluminum alloy melt is configured to include the following elements in percentage by mass: copper: 0.8%-1.0%, magnesium: 0.8%-1.2%, silicon: 0.4%-0.8%, zirconium: 0.1%-0.2%, cerium: 0.061%-0.08%, and the rest is aluminum; The molten aluminum alloy is poured into a casting mold and cooled to form an aluminum alloy ingot; Hot rolling the aluminum alloy ingot by a semi-solid hot rolling process to obtain an aluminum alloy cast rod; Extruding the aluminum alloy cast rod to obtain a manifold profile; Carry out solution heat treatment and aging treatment on the manifold profiles; The manifold profiles after solution heat treatment and aging treatment are welded and assembled to produce the manifold finished product.

[0053] Optionally, the manifold 6 includes a first pipeline 7 and a second pipeline 8, and a ventilation pipeline 9 is provided between the first pipeline 7 and the second pipeline 8; A plurality of heat dissipation fins 5 are arranged on the side of the manifold 6, and the height of the heat dissipation fins 5 is 15 mm to 16 mm; The length of the manifold 6 is 500 mm to 700 mm, the width is 100 mm to 200 mm, the height is 50 mm to 60 mm, and the wall thickness of the manifold 6 is 5 mm to 6 mm.

[0054] Optionally, a plurality of branches are respectively arranged on the first pipeline 7 and the second pipeline 8, the branch of the first pipeline 7 includes a main water inlet 3 and a plurality of branch water outlets 4, and the branch of the second pipeline 8 includes a main water outlet 1 and a plurality of branch water inlets 2; Quick-connect joints are provided on several branches of the first pipeline 7 and the second pipeline 8, and the verticality between the quick-connect joints and the surface of the manifold 6 is ≤0.1 mm.

[0055] Specifically, the Al-Cu-Mg-Si alloy of the present application is composed of the following components, and the mass percentage of the chemical components is: Cu: 0.8%, Mg: 1.0%, Si: 0.6%, Zr: 0.1%, Ce: 0.061%, and the rest is Al. By adding Ce and Zr elements and increasing the component content, it is DC semi-continuously cast. The diameter of the aluminum alloy ingot after the car is Φ148mm. The ingot is placed in an industrial furnace and heated to 520℃~550℃. This temperature The temperature range belongs to the semi-solid heat treatment range. Here, the heat treatment time is 3h, and the ingot is cooled to 500℃ with the furnace; then the ingot is placed in a short stress rolling mill for hot rolling, the roll temperature is 450℃~480℃, 6 rolling passes are selected, and the rolling coefficient of each pass is 1.12-1.08-1.08-1.08-1.08-1.08. After rolling, the diameter of the aluminum alloy rolled bar is Φ115mm. The aluminum alloy rolled bar after rolling is placed in an industrial resistance furnace for stress relief annealing.

[0056] Table 1 Tensile properties of different aluminum alloy ingot samples

[0057] The rolled aluminum alloy cast rod is annealed at 400°C for 1h and then placed in a forward extruder. The temperature range of the extrusion barrel is 380°C~440°C, the temperature of the extrusion die is kept equal to the temperature of the extrusion barrel of the extruder, the extrusion speed is 6mm / s~8mm / s, and the extrusion ratio is set to 10~15. After being extruded through the extrusion die, it becomes a manifold profile. A lower extrusion ratio can produce a manifold profile with no burr defects on the surface under a lower extrusion pressure.

[0058] Table 2 Forward extrusion temperature and mechanical properties of aluminum alloy cast bars

[0059] After producing the manifold profile without burr defects on the surface, the manifold profile is subjected to solution heat treatment and water cooling quenching, wherein the solution heat treatment temperature is 540°C and the time is 1h; Performing artificial aging treatment on the manifold profile, wherein the artificial aging temperature is 150°C and the time is 12 hours; performing electrolytic polishing and passivation treatment on the manifold profile after the solution heat treatment and the artificial aging treatment; like Figure 2As shown, the manifold profile after passivation treatment is straightened and sawed by a straightening machine, and then 4 aluminum alloy plates of the same material and thickness are used to weld and seal the two ends of the manifold through a welding process. The welding process complies with the relevant national standards. The ventilation pipeline in the middle of the manifold profile should be retained and the pipelines should be separated; the length, width and height of the manifold are 500mm*100mm*50mm, the pipe wall thickness is 5mm, the heat dissipation tooth plate height is 15mm, the main pipeline interface and the quick-connect joint are connected by G1 / 2 threaded connection, each pipeline has 3 branches, the branch pipeline and the quick-connect joint are connected by G3 / 8 threaded connection, and the quick-plug joint and the hose are connected by quick clamps; after the manifold is completed, red and blue marks are set on the interface to distinguish the return and supply pipelines respectively; after the corresponding parts (quick-connect joints, hose assemblies) are installed on the manifold branches, the verticality of the parts and the manifold surface is ≤0.1mm.

[0060] The present application provides an integrated aluminum alloy manifold with excellent mechanical properties and corrosion resistance by optimizing the ratio of aluminum alloy material components and combining heat treatment process, hot rolling process and extrusion process.

[0061] On the other hand, Figure 4 As shown, the present application provides a heat dissipation control system, which includes a processor, a cold row, a water pump, and a manifold prepared according to the following method for preparing a manifold, the manifold includes a main water inlet, a plurality of branch water outlets, a main water outlet, and a plurality of branch water inlets; The processor is connected to several water inlets of the manifold, the main water outlet of the manifold is connected to the cold row, the cold row is connected to the water pump, the water pump is connected to the main water inlet of the manifold, and several water outlets of the manifold are connected to the processor.

[0062] The preparation method of the manifold comprises: The aluminum alloy melt is configured to include the following elements in percentage by mass: copper: 0.8%-1.0%, magnesium: 0.8%-1.2%, silicon: 0.4%-0.8%, zirconium: 0.1%-0.2%, cerium: 0.061%-0.08%, and the rest is aluminum; The molten aluminum alloy is poured into a casting mold and cooled to form an aluminum alloy ingot; Hot rolling the aluminum alloy ingot by a semi-solid hot rolling process to obtain an aluminum alloy cast rod; Extruding the aluminum alloy cast rod to obtain a manifold profile; Carry out solution heat treatment and aging treatment on the manifold profiles; The manifold profiles after solution heat treatment and aging treatment are welded and assembled to produce the manifold finished product.

[0063] Optionally, the heat dissipation control system also includes a cooling fan and a manifold fan. The cooling fan is set on the side of the cooling radiator. V 空气 By formula: Calculate, where Q is the heat dissipation of the coolant, is the air density, C p,空气 is the specific heat capacity of air, Δ T 空气 is the air temperature rise; The manifold fan is arranged on the side of the manifold, and the air volume of the manifold fan is the first percentage of the air volume of the radiator fan, wherein the first percentage may be 50%.

[0064] Optionally, the design flow rate of the main water inlet and the main water outlet is ≥16LPM, and the design flow rate of the main water inlet and the main water outlet is ≤2.8m / s; The flow rate range of the main water inlet and the main water outlet is 0LPM~36LPM, and the flow velocity range of the main water inlet and the main water outlet is 0m / s~3.5m / s; The design flow rate of several water inlets and several water outlets is ≥1LPM, and the design flow rate of several water inlets and several water outlets is ≤2m / s; The flow rate range of the several water inlets and the several water outlets is 0LPM~2.5LPM, and the flow velocity range of the several water inlets and the several water outlets is 0m / s~2.5m / s; Among them, the uniformity of flow is ≤10%.

[0065] Optionally, the flow rate of the water pump is ≥5L / min, and the output pressure of the water pump is >1Mpa; The internal working pressure of the manifold is ≤5bar, and the pressure bearing capacity of the manifold is ≥8bar.

[0066] Optionally, the heat dissipation control system implements the following heat dissipation control method: Determine whether the system coolant temperature has increased; If so, the coolant temperature is lowered by increasing the fan volume of the radiator fan and / or the fan volume of the manifold fan and / or the power of the water pump, and the system coolant temperature is further judged whether it rises; if not, the current radiator and manifold fan speeds and water pump parameters are kept unchanged; Continue to determine whether the system coolant temperature has increased, including: Determine whether the system coolant temperature continues to rise; If so, increase the fan speed of the radiator and manifold and / or increase the water pump flow. When the system coolant temperature continues to rise and exceeds the first threshold, an alarm is issued for the system coolant temperature and manual intervention and / or the heat dissipation area of ​​the radiator is increased; if not, keep the current fan speed of the radiator and manifold and the current water pump parameters unchanged.

[0067] Specifically, the liquid cooling system of the heat dissipation control system includes a cold plate on the processor, a manifold and a heat dissipation fan on the manifold; heat dissipation components: a radiator and a corresponding heat dissipation fan; and driving components: a water pump, etc.

[0068] like Figure 4 As shown, the overall connection method of the heat dissipation control system is: the cold plate radiator in the cold plate assembly is connected to the processor CPU, and the surface is coated with heat dissipation paste; the outlet of the cold plate radiator is connected to the sub-water inlet of the manifold, the main water outlet of the manifold is connected to the inlet of the radiator, the outlet of the radiator is connected to the inlet of the water pump, the outlet of the water pump is connected to the main water inlet of the manifold, and the sub-water outlet of the manifold is connected to the inlet of the cold plate radiator; after the connection is completed, the circulating coolant is encapsulated inside the system, and the coolant is a certain proportion of ethylene glycol solution, and a cooling fan is installed on the side of the radiator and the side of the manifold.

[0069] Here, the radiator fan is combined with the radiator to actively dissipate the coolant. When the water temperature at the outlet of the manifold is high, the air volume can be increased to reduce the temperature of the water flowing back to the liquid storage tank through the radiator, thereby maintaining the water temperature of the entire liquid cooling circulation pipeline stable.

[0070] The water pump is used to stably control the coolant flow rate; the flow rate and fluid temperature can be accurately displayed on the data acquisition module through the flow sensor and temperature sensor, and the water pump output pressure is >1MPa.

[0071] Among them, Figure 5 As shown, the data acquisition module includes a temperature sensor, a thermocouple, and a data display module. The temperature sensors can be arranged in 4 to 6 locations, which can be placed respectively at the processor, the return branch of the manifold, the main return water outlet, the cold discharge water outlet, the main water inlet of the manifold, the water outlet branch of the manifold, etc. The thermocouple can be placed on the surface of the liquid cooling radiator (cold plate) to monitor the surface temperature of the processor in real time.

[0072] It is understandable that if Figure 4 As shown, build a heat dissipation control system: use hoses to connect the water pump, liquid storage tank, water outlet and return pipes of the manifold, processor heat dissipation module (cold plate), and radiator in sequence and adjust the heat dissipation control system. At the same time, install a cooling fan on the side of the radiator and a cooling fan on the side of the manifold.

[0073] The water pump provides a flow rate of no less than 5L / min. The flow rate from the manifold to the server node is guaranteed to be uniform. Regardless of whether the server is fully equipped, the difference between the maximum flow (2.5LPM) and the minimum flow (1LPM) of each water outlet shall not exceed 10% of the minimum flow. The maximum working pressure inside the manifold is 5bar, and the pressure bearing capacity is no less than 8bar. Figure 4 The schematic diagram of the heat dissipation control system shown in FIG. 5 detects the temperatures of five positions, namely the processor surface temperature T0, the temperature before the coolant enters the processor cooling module T1, the temperature after it flows out of the processor cooling module T2, the coolant temperature before it flows into the radiator T3, and the temperature after it flows out of the radiator T4. This allows the temperature change of the coolant and the heat dissipation of the integrated manifold to be dynamically monitored.

[0074] Here, the design flow rate of the main pipe (main water inlet, main water outlet) is ≥16LPM, the design flow rate of the main pipe is ≤2.8m / s, the main pipe can support a flow range of 0LPM~36LPM, and the main pipe can support a flow rate range of 0m / s~3.5m / s; The design flow rate of the branch (inlet and outlet) is ≥1LPM, the design flow rate of the branch is ≤2m / s, the flow rate range that the branch can support is 0LPM~2.5LPM, and the flow rate range that the branch can support is 0m / s~2.5m / s; The uniformity of the flow is ≤10%, that is, the branch flow at the farthest end and the nearest end. For example, when the branch flow is selected as 1LPM, the branch flow at the farthest end and the nearest end ranges from 0.9LMP to 1.1LMP, and the uniformity is ≤10%.

[0075] For example: Two cold plate servers are being tested, and each server is equipped with two 250W processors. Example of calculating the air volume of the cooling fan for the cold row: Coolant heat dissipation Q = 1000W, air temperature rise Δ T 空气 =10℃, calculate the fan air volume according to the formula and reserve a 20% margin, then select a fan with an air volume ≥200CFM for the radiator; and the fan of the manifold can be selected with half the air volume of the radiator cooling fan, then select a fan with an air volume ≥100CFM for the manifold.

[0076] ; It can be seen that: at the same flow rate, the safe operating temperature of the CPU is 104°C. When the power is 100W, the surface temperature of the processor is 49°C. The temperature of the processor increases linearly with the increase of power. When running at full power of 250W, the surface temperature of the processor can reach 90°C. As shown in Table 3, the heat dissipation of the heat dissipation control system significantly reduces the overall temperature of the coolant. The coolant temperature drops by 21°C before and after passing through the processor heat source, which has a significant heat dissipation effect.

[0077] If the temperature continues to rise and the coolant temperature does not drop significantly, increase the power of the radiator cooling fan and the manifold cooling fan until they run at full power consumption.

[0078] Table 3

[0079] like Figure 6 As shown, the present application also provides a heat dissipation control method, the method applies a heat dissipation control system, and the method includes: Determine whether the system coolant temperature has increased; If so, the coolant temperature is lowered by increasing the fan volume of the radiator fan and / or the fan volume of the manifold fan and / or the power of the water pump, and the system coolant temperature is further judged whether it rises; if not, the current radiator and manifold fan speeds and water pump parameters are kept unchanged; Continue to determine whether the system coolant temperature has increased, including: Determine whether the system coolant temperature continues to rise; If so, increase the fan speed of the radiator and manifold and / or increase the water pump flow. When the system coolant temperature continues to rise and exceeds the first threshold (94°C), an alarm is issued for the system coolant temperature and manual intervention and / or the heat dissipation area of ​​the radiator is increased; if not, keep the current fan speed of the radiator and manifold and the current water pump parameters unchanged.

[0080] This application proposes a molding process for an integrated manifold, and at the same time adds heat dissipation teeth on the surface of the manifold, uses a heat dissipation fan to provide active heat dissipation for the manifold, and reduces the weight of the manifold while ensuring mechanical properties. This application also proposes a heat dissipation control method based on the manifold, which avoids the steps of installing and debugging the CDU when testing the cold plate server itself, thereby improving the test efficiency. The manifold of this application can be suitable for liquid-cooled server equipment of multiple categories, multiple scenarios, and multiple models, and is more convenient to install, use, and maintain.

[0081] Embodiment 1: The aluminum alloy melt is configured, wherein the mass percentages of the metal components of the aluminum alloy melt are: copper: 0.8%, magnesium: 0.8%, silicon: 0.4%, zirconium: 0.1%, cerium: 0.061%, and the rest is aluminum; The molten aluminum alloy is poured into a casting mold and cooled to form an aluminum alloy ingot; The aluminum alloy ingot is hot rolled by a semi-solid hot rolling process, wherein the rolling passes are 6, and the rolling coefficients of each pass are 1.12-1.08-1.08-1.08-1.08-1.08; the rolling roller temperature is 460°C; The aluminum alloy cast rods after hot rolling are extruded, the temperature of stress relief annealing treatment of the aluminum alloy cast rods after hot rolling is 400°C, the time is 1h, the extrusion ratio of the aluminum alloy cast rods is 10, and the extrusion speed is 6mm / s; After the aluminum alloy manifold is formed, it is subjected to solution heat treatment, water-cooled quenching, and then artificial aging; the heat treatment process: solution temperature is 540℃, time is 1h, artificial aging temperature is 150℃, time is 12h; The manifold profiles after solution heat treatment are welded and assembled to produce the manifold finished product.

[0082] Example 2 The aluminum alloy melt is configured, wherein the mass percentages of the metal components of the aluminum alloy melt are: copper: 0.8%, magnesium: 0.8%, silicon: 0.4%, zirconium: 0.1%, cerium: 0.07%, and the rest is aluminum; The molten aluminum alloy is poured into a casting mold and cooled to form an aluminum alloy ingot; The aluminum alloy ingot is hot rolled by a semi-solid hot rolling process, wherein the rolling passes are 6, and the rolling coefficients of each pass are 1.12-1.08-1.08-1.08-1.08-1.08; the rolling roller temperature is 460°C; The aluminum alloy cast rods after hot rolling are extruded, the temperature of stress relief annealing treatment of the aluminum alloy cast rods after hot rolling is 400°C, the time is 1h, the extrusion ratio of the aluminum alloy cast rods is 10, and the extrusion speed is 6mm / s; After the aluminum alloy manifold is formed, it is subjected to solution heat treatment, water-cooled quenching, and then artificial aging; the heat treatment process: solution temperature is 540℃, time is 1h, artificial aging temperature is 150℃, time is 12h; The manifold profiles after solution heat treatment are welded and assembled to produce the manifold finished product.

[0083] Example 3 The aluminum alloy melt is configured, wherein the mass percentages of metal components of the aluminum alloy melt are: copper: 0.8%, magnesium: 0.8%, silicon: 0.4%, zirconium: 0.1%, cerium: 0.08%, and the rest is aluminum; The molten aluminum alloy is poured into a casting mold and cooled to form an aluminum alloy ingot; The aluminum alloy ingot is hot rolled by a semi-solid hot rolling process, wherein the rolling passes are 6, and the rolling coefficients of each pass are 1.12-1.08-1.08-1.08-1.08-1.08; the rolling roller temperature is 460°C; The aluminum alloy cast rods after hot rolling are extruded, the temperature of stress relief annealing treatment of the aluminum alloy cast rods after hot rolling is 400°C, the time is 1h, the extrusion ratio of the aluminum alloy cast rods is 10, and the extrusion speed is 6mm / s; After the aluminum alloy manifold is formed, it is subjected to solution heat treatment, water-cooled quenching, and then artificial aging; the heat treatment process: solution temperature is 540℃, time is 1h, artificial aging temperature is 150℃, time is 12h; The manifold profiles after solution heat treatment are welded and assembled to produce the manifold finished product.

[0084] Comparative Example 1 The aluminum alloy melt is configured, wherein the mass percentages of the metal components of the aluminum alloy melt are: copper: 0.8%, magnesium: 0.8%, silicon: 0.4%, zirconium: 0.1%, and the rest is aluminum; The molten aluminum alloy is poured into a casting mold and cooled to form an aluminum alloy ingot; The aluminum alloy ingot is hot rolled by a semi-solid hot rolling process, wherein the rolling passes are 6, and the rolling coefficients of each pass are 1.12-1.08-1.08-1.08-1.08-1.08; the rolling roller temperature is 460°C; The aluminum alloy cast rods after hot rolling are extruded, the temperature of stress relief annealing treatment of the aluminum alloy cast rods after hot rolling is 400°C, the time is 1h, the extrusion ratio of the aluminum alloy cast rods is 10, and the extrusion speed is 6mm / s; After the aluminum alloy manifold is formed, it is subjected to solution heat treatment, water-cooled quenching, and then artificial aging; the heat treatment process: solution temperature is 540℃, time is 1h, artificial aging temperature is 150℃, time is 12h; The manifold profiles after solution heat treatment are welded and assembled to produce the manifold finished product.

[0085] The experimental results are shown in Table 4. The mechanical properties of the manifold profile after solution aging treatment are as follows: Table 4

[0086] It can be seen that the addition of rare earth element Ce has a significant grain refining effect on Al-Cu-Mg-Si-Zr alloy. With the increase of Ce content, the strength of aluminum alloy increases significantly. The addition of Zr and Ce elements can effectively increase the recrystallization temperature of aluminum alloy, inhibit the recrystallization behavior during hot extrusion deformation, and play a role in grain refinement. The grain refinement strengthening effect improves the mechanical properties of the alloy.

[0087] Comparative Example 2 The aluminum alloy melt is configured, wherein the mass percentages of the metal components of the aluminum alloy melt are: copper: 0.8%, magnesium: 0.8%, silicon: 0.4%, and the rest is aluminum; The molten aluminum alloy is poured into a casting mold and cooled to form an aluminum alloy ingot; The aluminum alloy ingot is hot rolled by a semi-solid hot rolling process, wherein the rolling passes are 6, and the rolling coefficients of each pass are 1.12-1.08-1.08-1.08-1.08-1.08; the rolling roller temperature is 460°C; The aluminum alloy cast rods after hot rolling are extruded, the temperature of stress relief annealing treatment of the aluminum alloy cast rods after hot rolling is 400°C, the time is 1h, the extrusion ratio of the aluminum alloy cast rods is 10, and the extrusion speed is 6mm / s; After the aluminum alloy manifold is formed, it is subjected to solution heat treatment, water-cooled quenching, and then artificial aging; the heat treatment process: solution temperature is 540℃, time is 1h, artificial aging temperature is 150℃, time is 12h; The manifold profiles after solution heat treatment are welded and assembled to produce the manifold finished product.

[0088] The experimental results are shown in Table 5. The intergranular corrosion depth after solution aging treatment is: Table 5

[0089] It can be seen that the area fraction of grain boundary precipitation phase (GBP) is an important parameter for evaluating SCC (stress corrosion cracking) sensitivity. Zr element forms Al3Zr phase in aluminum alloy, and the grain boundary precipitates are coarsened in combination with heat treatment process. The spacing of grain boundary precipitates increases, which reduces the difference in electrochemical properties between the grain boundary and the interior of the grain, thereby improving the corrosion resistance of Al-Cu-Mg-Si alloy.

[0090] Here, intergranular corrosion refers to the corrosion phenomenon that extends from the interface between metal grains to the inside, which is mainly caused by the difference in chemical composition between the surface and the inside of the grains and the existence of grain boundary impurities or internal stress. Intergranular corrosion will destroy the bonding between grains and significantly reduce the mechanical strength, toughness and fatigue resistance of aluminum alloys. Therefore, corrosion depth is an important indicator to measure the sensitivity of aluminum alloys to intergranular corrosion.

[0091] Specific detection method: Referring to GB / T7998-2023 Evaluation Method for Intergranular Corrosion Sensitivity of Aluminum Alloy, the aluminum alloy sample was first treated to remove surface oil stains, immersed in NaOH solution for 10 minutes until the metallic luster of the surface disappeared, and rinsed with water; then the aluminum alloy sample was immersed in nitric acid for 1 minute, rinsed with water, and dried in the air, and the cross-section of the sample was observed under a scanning electron microscope to characterize the depth of intergranular corrosion.

[0092] It can be seen from the above embodiments that the method for preparing the manifold provided by the present application achieves at least the following beneficial effects: The technical solution provided in the embodiment of the present application can produce an aluminum alloy manifold with excellent corrosion resistance and high mechanical properties in the coolant by adding corrosion-resistant rare earth elements, and undergoing heat treatment, rolling and extrusion molding, thereby reducing the weight while ensuring the mechanical properties; the present application involves a process that combines deformation and heat treatment of aluminum alloy materials, which takes advantage of the fact that the aluminum alloy is light in weight and occupies little space, and meets the requirements of the mechanical properties of the outlet pipe and the return pipe; at the same time, through the integrated pipeline design, the position of the cold plate liquid cooling server can be flexibly adjusted to improve operational efficiency.

[0093] Although some specific embodiments of the present application have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are only for illustration and not for limiting the scope of the present application. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope of the present application. The scope of the present application is defined by the appended claims.

Claims

1. A method for preparing a manifold, characterized in that: The method comprises: The aluminum alloy melt is configured to include the following elements in percentage by mass: copper: 0.8%-1.0%, magnesium: 0.8%-1.2%, silicon: 0.4%-0.8%, zirconium: 0.1%-0.2%, cerium: 0.061%-0.08%, and the rest is aluminum; The molten aluminum alloy is poured into a casting mold and cooled to form an aluminum alloy ingot; Hot rolling the aluminum alloy ingot by a semi-solid hot rolling process to obtain an aluminum alloy cast rod; Extruding the aluminum alloy cast rod to obtain a manifold profile; Performing solution heat treatment and aging treatment on the manifold profile; The manifold profiles after the solution heat treatment and aging treatment are welded and assembled to produce a manifold finished product.

2. The method for preparing the manifold according to claim 1, characterized in that: The step of configuring the aluminum alloy melt comprises: Add pure metal aluminum ingots into the smelting furnace, heat the smelting furnace to 700℃~710℃, then add pure metal magnesium ingots and pure metal silicon ingots into the pure metal aluminum melt, stir them evenly after the pure metal magnesium ingots and pure metal silicon ingots are melted, heat the smelting furnace to 730℃~740℃, then add trialuminum zirconium alloy and rare earth element cerium ingots into the melt to refine the aluminum alloy melt.

3. The method for preparing the manifold according to claim 1, characterized in that: The hot rolling of the aluminum alloy ingot by a semi-solid hot rolling process comprises: Add the aluminum alloy ingot into the industrial furnace, heat the industrial furnace to 520°C~550°C, heat treat the aluminum alloy ingot, and cool the industrial furnace to 500°C; The cooled aluminum alloy ingot is added into a rolling mill for hot rolling; Among them, the rolling passes are 6 to 8 passes, and the elongation coefficient of each rolling pass is between 1.05 and 1.3; the roller temperature is 460°C to 480°C.

4. The method for preparing the manifold according to claim 3, characterized in that: The heat treatment time for aluminum alloy ingot is 2h~3h; The reduction in the first hot rolling pass is 30%~50%, and the reduction in the subsequent rolling passes gradually decreases to 10%~20%.

5. The method for preparing the manifold according to claim 1, characterized in that: The method of extruding the aluminum alloy cast rod to obtain a manifold profile comprises: Annealing the aluminum alloy cast bar after hot rolling; The annealed aluminum alloy cast rod is placed in a forward extruder, and the aluminum alloy cast rod is extruded through an extrusion die to obtain a manifold profile; The temperature of the aluminum alloy casting rod, the extrusion barrel temperature of the extruder and the temperature of the extrusion die are all 400°C to 420°C, and the outlet temperature of the extruder is 480°C to 520°C; the temperature of the stress relief annealing treatment of the aluminum alloy casting rod after hot rolling is 400°C to 420°C, and the time is 1h to 2h; The extrusion ratio of the aluminum alloy cast rod extrusion molding is 10-15, and the extrusion speed is 6mm / s-8mm / s.

6. The method for preparing the manifold according to claim 1, characterized in that: The solution heat treatment and aging treatment of the manifold profile include: The manifold profile is subjected to solution heat treatment and water cooling quenching, wherein the solution heat treatment temperature is 540° C. to 550° C. and the time is 1 h to 1.5 h; The manifold profile is subjected to artificial aging treatment, wherein the artificial aging temperature is 150° C. to 160° C. and the time is 12 h to 13 h.

7. The method for preparing a manifold according to claim 1, characterized in that: After the solution heat treatment and aging treatment are performed on the manifold profile, the method comprises: Electrolytic polishing and passivation treatment are performed on the manifold profiles after solution heat treatment and aging treatment; The electrolytic polishing and passivation treatment of the manifold profile after the solution heat treatment and the aging treatment comprises: Electroplating a chrome or nickel coating on the surface of the manifold profile, and polishing the surface of the manifold profile by mechanical or chemical methods; An oxide film is formed on the surface of the manifold profile by anodizing.

8. The method for preparing a manifold according to claim 1, characterized in that: Weld and assemble the manifold profiles to produce the manifold finished product, including: Aluminum alloy plates of the same material and thickness as the manifold profile are used to weld the openings at both ends of the manifold profile, and the ventilation hole in the middle of the manifold profile is retained; Drill holes in the water distribution pipeline and the main water pipeline of the manifold profile and set pipeline branches; The hole interfaces of the main water pipeline and the water distribution pipeline are threadedly connected with the quick-connect plug with a hose to generate a finished manifold.

9. A manifold, characterized in that: The manifold is prepared according to the method for preparing a manifold according to any one of claims 1 to 8.

10. The manifold according to claim 9, characterized in that: The manifold comprises a first pipeline and a second pipeline, and a ventilation pipeline is arranged between the first pipeline and the second pipeline; A plurality of heat dissipation fins are arranged on the side of the manifold, and the height of the heat dissipation fins is 15 mm to 16 mm; The length of the manifold is 500mm-700mm, the width is 100mm-200mm, the height is 50mm-60mm, and the wall thickness of the manifold is 5mm-6mm.

11. The manifold according to claim 10, characterized in that: The first pipeline and the second pipeline are respectively provided with a plurality of branches. Quick-connect joints are provided on several branches of the first pipeline and the second pipeline, and the verticality between the quick-connect joints and the surface of the manifold is ≤0.1mm.

12. A heat dissipation control system, characterized in that: The heat dissipation control system comprises a processor, a radiator, a water pump, and a manifold produced by the preparation method according to any one of claims 1 to 8, wherein the manifold comprises a main water inlet, a plurality of branch water outlets, a main water outlet, and a plurality of branch water inlets; The processor is connected to several branch water inlets of the manifold, the main water outlet of the manifold is connected to the cold row, the cold row is connected to the water pump, the water pump is connected to the main water inlet of the manifold, and several branch water outlets of the manifold are connected to the processor.

13. The heat dissipation control system according to claim 12, characterized in that: The heat dissipation control system also includes a cooling fan and a manifold fan. The cooling fan is arranged on the side of the cooling row, and the air volume of the cooling fan is V 空气 By formula: Calculate, where Q is the heat dissipation of the coolant, is the air density, C p,空气 is the specific heat capacity of air, Δ T 空气 is the air temperature rise; The manifold fan is arranged on a side of the manifold, and the air volume of the manifold fan is a first percentage of the air volume of the cold exhaust fan.

14. The heat dissipation control system according to claim 12, characterized in that: The design flow rate of the main water inlet and the main water outlet is ≥16LPM, and the design flow rate of the main water inlet and the main water outlet is ≤2.8m / s; The flow rate range of the main water inlet and the main water outlet is 0LPM~36LPM, and the flow velocity range of the main water inlet and the main water outlet is 0m / s~3.5m / s; The design flow rate of the plurality of water inlets and the plurality of water outlets is ≥1LPM, and the design flow rate of the plurality of water inlets and the plurality of water outlets is ≤2m / s; The flow rate range of the plurality of water inlets and the plurality of water outlets is 0 LPM to 2.5 LPM, and the flow velocity range of the plurality of water inlets and the plurality of water outlets is 0 m / s to 2.5 m / s; Among them, the uniformity of flow is ≤10%.

15. The heat dissipation control system according to claim 13, characterized in that: The heat dissipation control system implements the following heat dissipation control method: Determine whether the system coolant temperature has increased; If yes, then lower the coolant temperature by increasing the fan air volume of the cooling fan and / or increasing the fan air volume of the manifold fan and / or increasing the power of the water pump, and continue to judge whether the system coolant temperature increases; If not, keep the current radiator and manifold fan speeds and water pump parameters unchanged; The step of continuing to judge whether the system coolant temperature has increased includes: Determine whether the system coolant temperature continues to rise; If so, increase the fan speed of the radiator and manifold and / or increase the water pump flow. When the system coolant temperature continues to rise and exceeds the first threshold, an alarm is issued for the system coolant temperature and manual intervention and / or the heat dissipation area of ​​the radiator is increased; if not, keep the current fan speed of the radiator and manifold and the current water pump parameters unchanged.

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