CN111435062A - Roll-bond liquid cooling heat exchanger and preparation method thereof - Google Patents
Roll-bond liquid cooling heat exchanger and preparation method thereof Download PDFInfo
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- CN111435062A CN111435062A CN201910035341.5A CN201910035341A CN111435062A CN 111435062 A CN111435062 A CN 111435062A CN 201910035341 A CN201910035341 A CN 201910035341A CN 111435062 A CN111435062 A CN 111435062A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
- F28F3/12—Elements constructed in the shape of a hollow panel, e.g. with channels
- F28F3/14—Elements constructed in the shape of a hollow panel, e.g. with channels by separating portions of a pair of joined sheets to form channels, e.g. by inflation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/26—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass heat exchangers or the like
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
- F28F19/02—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using coatings, e.g. vitreous or enamel coatings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2275/00—Fastening; Joining
- F28F2275/06—Fastening; Joining by welding
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Abstract
The invention relates to an inflation type liquid cooling heat exchanger and a preparation method thereof. The roll-bond resistance layer is formed on the inner surface of the liquid flow channel, and the roll-bond resistance layer comprises boron nitride. According to the roll-up type liquid cooling heat exchanger, the inner surface of the liquid flow channel is provided with the rolling resistance agent layer, the rolling resistance agent layer comprises boron nitride, the boron nitride has chemical erosion resistance, high temperature stability and thermal shock resistance are good, hardness is high, the boron nitride is used for the rolling resistance agent layer, corrosion of a liquid medium to the inner surface of the liquid cooling heat exchanger can be prevented, and the service life of the roll-up type liquid cooling heat exchanger is prolonged.
Description
Technical Field
The invention relates to a heat exchanger, in particular to an inflation type liquid cooling heat exchanger and a preparation method thereof.
Background
The roll-bond type liquid cooling heat exchanger is characterized in that a roll-bond inhibitor is printed or coated on a specific position of one aluminum plate, then the other aluminum plate is covered on the roll-bond type liquid cooling heat exchanger, and then a cavity is formed through rolling, compounding and blowing. Rolling and compounding are technological processes of combining double-layer or multi-layer metal plates into one body by rolling. The rolling inhibitor is a material for preventing the double-layer metal plates from being combined by rolling, and for example, a conventional rolling inhibitor is a graphite emulsion. The rolling inhibitor is coated or printed between the double-layer metal plates, so that when the double-layer metal plates are rolled and compounded, the areas coated or printed with the rolling inhibitor cannot be rolled and combined into a whole, and the double-layer metal plates in the areas still keep a mutually separated double-layer structure to form cavities (namely liquid flow channels). In the inflation type liquid cooling heat exchanger, a flowing medium in a liquid flow channel is cooling liquid, such as water, ethylene glycol and other media, so that the corrosion of the inner surface of the liquid flow channel is easily caused, and an aluminum plate is further corroded.
Disclosure of Invention
The invention aims to provide a roll-bond type liquid cooling heat exchanger, wherein a boron nitride rolling inhibitor layer is arranged on the inner surface of a liquid flow passage of the roll-bond type liquid cooling heat exchanger, and the roll-bond type liquid cooling heat exchanger has a good corrosion resistance effect.
A second object of the present invention is to provide a method for manufacturing the above-mentioned roll-bond liquid cooling heat exchanger.
In order to achieve the purpose, the technical scheme of the invention is as follows:
the utility model provides a roll-bond heat exchanger is cooled to roll-bond, includes the base plate and forms liquid runner in the base plate, the internal surface of liquid runner is formed with the rolling inhibitor layer, the rolling inhibitor layer includes boron nitride.
The liquid flow channel may be filled with a liquid medium. The liquid medium is any one of ethanol, glycol and water.
The boron nitride is granular, and the diameter of the granular boron nitride is 1-2 mu m.
The rolling retardant layer also comprises one or two of zinc oxide and magnesium nitride.
The rolling inhibitor layer also comprises silicon dioxide.
The rolling retardant layer comprises the following components in percentage by mass: 93-99% of boron nitride, 0.3-5.7% of silicon dioxide, and the balance of one or two of zinc oxide and magnesium nitride.
The preparation method of the roll-bond type liquid cooling heat exchanger comprises the following steps:
1) coating or printing a rolling inhibitor on the surface of an aluminum plate, drying after heating treatment, covering another aluminum plate, heating to 450-580 ℃, preserving heat for 30-60 min, and annealing after rolling to form a substrate, wherein the rolling inhibitor comprises boron nitride emulsion and water, and also comprises one or more of the following components: moisture absorbent, preservative, curing agent, lubricant, thickener, additive;
2) drilling a blowing hole on the substrate in the step 1), and then blowing by adopting gas to enable the substrate to be blown up to form a liquid flow channel in the substrate;
3) and sealing the liquid flow channel by adopting argon arc welding, and then drilling a liquid inlet and a liquid outlet on the substrate to obtain the liquid flow channel.
The heating treatment in the step 1) is heating to 110-150 ℃ and preserving heat for 3-10 min.
And 2) blowing with gas under the pressure of 8-10 MPa.
The preparation method of the inflation type liquid cooling heat exchanger further comprises the steps of introducing ammonia water into the liquid flow channel for cleaning before sealing, introducing ethylene glycol solution for cleaning, and drying.
The diameter of the monomer suspended boron nitride particles in the boron nitride emulsion is 1-2 mu m. The volume fraction of water in the boron nitride emulsion is 60-80%.
The mass fraction of the ammonia water is 0.1-0.5%. The time for flushing by introducing ammonia water is 1-2 min.
The mass fraction of the glycol solution is 10-90%. The time for introducing the ethylene glycol solution for cleaning is 1-3 min.
The rolling inhibitor comprises the following components in percentage by mass: 60-90% of boron nitride emulsion, 1.0-5.0% of moisture absorbent, 0.5-2.0% of preservative, 0.2-1.0% of curing agent, 3.0-8.0% of lubricant, 0.5-5.0% of thickening agent, 0-9.5% of additive and the balance of water.
The curing agent is any one or more of sodium silicate, sodium metasilicate and potassium sodium silicate; the preservative is any one or more of zinc oxide, zinc chloride, zinc sulfate, sodium metazincate and magnesium nitride.
The thickening agent is any one or more of methyl cellulose, carboxymethyl cellulose, hydroxyethyl cellulose and hydroxypropyl methyl cellulose; the lubricant is any one or more of gum arabic, propolis, paraffin and mineral oil; the additive is any one or more of a dispersing agent, a defoaming agent and a mildew preventive; the moisture absorbent is one or more of ethylene glycol, propylene glycol and glycerol.
The dispersing agent is any one or more of stearamide, vinyl bis-stearamide and zinc stearate.
The defoaming agent is any one or more of polyether (polyethylene glycol ether), high-carbon alcohol and polysiloxane (silicone oil). The higher alcohol is tridecanol or tetradecanol.
The mildew preventive is any one or more of phenolic compounds, nano zinc oxide and ammonia water. The phenolic compound is pentachlorophenol.
According to the roll-up type liquid cooling heat exchanger, the inner surface of the liquid flow channel is provided with the rolling resistance agent layer, the rolling resistance agent layer comprises boron nitride, the boron nitride has chemical erosion resistance, high temperature stability and thermal shock resistance are good, hardness is high, the boron nitride is used for the rolling resistance agent layer, corrosion of a liquid medium in the liquid flow channel to the inner surface of the liquid cooling heat exchanger can be prevented, and the service life of the roll-up type liquid cooling heat exchanger is prolonged.
Drawings
FIG. 1 is a schematic view of the structure of a roll-bond type liquid-cooled heat exchanger according to example 1;
FIG. 2 is a schematic view showing the appearance of the aluminum pipe of the roll-bond type liquid-cooled heat exchanger in example 1 after the salt spray test;
FIG. 3 is a schematic view of the appearance of an aluminum tube of an inflation type liquid-cooled heat exchanger prepared by using a graphite emulsion rolling inhibitor in an experimental example after a salt spray test.
Detailed Description
Example 1
The roll-bond liquid cooling heat exchanger of the present embodiment, as shown in fig. 1, includes a substrate 1 and a liquid flow channel 2 formed in the substrate 1, a rolling inhibitor layer 3 is formed on an inner surface of the liquid flow channel 2, and the rolling inhibitor layer 3 is composed of the following components by mass percent: 98% of boron nitride, 0.6% of silicon dioxide and 1.4% of zinc oxide, wherein the boron nitride is granular, and the diameter of the boron nitride granules is 1-2 mu m. The components and contents of the rolling inhibitor layer are measured by an EDS (electron-dispersive spectroscopy) analyzer.
The preparation method of the roll-bond liquid cooling heat exchanger of the embodiment comprises the following steps:
1) coating a rolling inhibitor on the surface of an aluminum plate, heating to 120 ℃, preserving heat for 5min, drying, covering another aluminum plate on the aluminum plate coated with the rolling inhibitor, then heating to 500 ℃, preserving heat for 50min, and annealing after rolling to form a substrate; the rolling retardant consists of the following components in percentage by mass: 70% of boron nitride emulsion, 3.0% of glycerol, 1.0% of zinc oxide, 0.5% of sodium silicate, 5.0% of gum arabic, 1.0% of methyl cellulose, 10% of deionized water, 3.0% of stearamide, 4.0% of polyether and 2.5% of pentachlorophenol;
2) drilling a blowing hole on the substrate in the step 1), and then blowing by using 8MPa gas to enable the aluminum plate to be blown up to form a liquid flow channel in the substrate;
3) introducing ammonia water with the mass fraction of 0.1% into the liquid flow channel for washing for 1min, introducing glycol solution with the mass fraction of 50% for washing for 2min, and then drying;
4) and sealing the liquid flow channel by adopting argon arc welding, and drilling a liquid inlet and a liquid outlet on the substrate by using a drilling machine.
Example 2
The roll-bond resistant liquid cooling heat exchanger of the embodiment is different from the roll-bond resistant liquid cooling heat exchanger of the embodiment 1 only in that the roll-bond resistant layer consists of the following components in percentage by mass: 97% of boron nitride, 0.8% of magnesium nitride, 0.4% of zinc oxide and 1.8% of silicon dioxide, wherein the boron nitride is granular, and the diameter of the boron nitride granules is 1-2 mu m. The components and contents of the rolling inhibitor layer are measured by an EDS (electron-dispersive spectroscopy) analyzer.
The preparation method of the roll-bond liquid cooling heat exchanger of the embodiment comprises the following steps:
1) printing a rolling inhibitor on the surface of an aluminum plate, heating to 110 ℃, preserving heat for 10min, drying, covering another aluminum plate on the aluminum plate coated with the rolling inhibitor, heating to 450 ℃, preserving heat for 60min, and annealing after rolling to form a substrate; the rolling retardant consists of the following components in percentage by mass: 82% of boron nitride emulsion, 1.5% of glycerol, 0.6% of zinc oxide, 1.0% of potassium sodium silicate, 4.5% of propolis, 1.5% of hydroxyethyl cellulose, 7% of deionized water, 1.0% of magnesium nitride and 0.9% of stearamide;
2) drilling a blowing hole on the substrate in the step 1), and then blowing by adopting 10MPa gas to enable the aluminum plate to be blown up to form a liquid flow channel in the substrate;
3) introducing ammonia water with the mass fraction of 0.5% into the liquid flow channel for washing for 2min, introducing glycol solution with the mass fraction of 10% for washing for 3min, and drying;
4) and sealing the liquid flow channel by adopting argon arc welding, and then drilling a liquid inlet and a liquid outlet on the liquid flow channel by using a drilling machine to obtain the liquid flow channel.
Example 3
The roll-bond resistant liquid cooling heat exchanger of the embodiment is different from the roll-bond resistant liquid cooling heat exchanger of the embodiment 1 only in that the roll-bond resistant layer consists of the following components in percentage by mass: 93 percent of boron nitride, 5.7 percent of zinc oxide and 1.3 percent of silicon dioxide, wherein the boron nitride is granular, and the diameter of the boron nitride granules is 1-2 mu m. The components and contents of the rolling inhibitor layer are measured by an EDS (electron-dispersive spectroscopy) analyzer.
The preparation method of the roll-bond liquid cooling heat exchanger of the embodiment comprises the following steps:
1) coating a rolling inhibitor on the surface of an aluminum plate, heating to 150 ℃, preserving heat for 3min, drying, covering another aluminum plate on the aluminum plate coated with the rolling inhibitor, then heating to 580 ℃, preserving heat for 30min, and annealing after rolling to form a substrate; the rolling retardant consists of the following components in percentage by mass: 65% of boron nitride emulsion, 5.0% of propylene glycol, 2% of zinc oxide, 1.0% of sodium metasilicate, 5.8% of propolis, 5% of carboxymethyl cellulose, 10% of deionized water, 2% of ammonia water, 2.2% of tetradecanol and 2% of zinc stearate;
2) drilling a blowing hole on the substrate in the step 1), and then blowing by adopting 9MPa gas to enable the aluminum plate to be blown up to form a liquid flow channel in the substrate;
3) introducing ammonia water with the mass fraction of 0.3% into the liquid flow channel for washing for 2min, introducing glycol solution with the mass fraction of 90% for washing for 1min, and drying to obtain the catalyst;
4) and sealing the liquid flow channel by adopting argon arc welding, and drilling a liquid inlet and a liquid outlet on the substrate by using a drilling machine.
Example 4
The roll-bond liquid cooling heat exchanger of the present embodiment is different from that of embodiment 1 only in that the rolling inhibitor layer is composed of the following components by mass percent: 99% of boron nitride, 0.7% of zinc oxide and 0.3% of silicon dioxide, wherein the boron nitride is granular, and the diameter of the boron nitride granules is 1-2 mu m. The components and contents of the rolling inhibitor layer are measured by an EDS (electron-dispersive spectroscopy) analyzer.
The preparation method of the roll-bond liquid cooling heat exchanger of the embodiment comprises the following steps:
1) coating a rolling inhibitor on the surface of an aluminum plate, heating to 130 ℃, preserving heat for 3min, drying, covering another aluminum plate on the aluminum plate coated with the rolling inhibitor, then heating to 550 ℃, preserving heat for 40min, and annealing after rolling to form a substrate; the rolling retardant consists of the following components in percentage by mass: 90% of boron nitride emulsion, 1.0% of ethylene glycol, 0.6% of zinc oxide, 0.2% of potassium sodium silicate, 3% of paraffin, 0.5% of hydroxyethyl cellulose, 4.2% of deionized water and 0.5% of stearamide;
2) drilling a blowing hole on the substrate in the step 1), and then blowing by adopting 10MPa gas to enable the aluminum plate to be blown up to form a liquid flow channel in the substrate;
3) introducing ammonia water with the mass fraction of 0.2% into the liquid flow channel for washing for 2min, introducing glycol solution with the mass fraction of 60% for washing for 1min, and drying;
4) and sealing the liquid flow channel by adopting argon arc welding, and drilling a liquid inlet and a liquid outlet on the substrate by using a drilling machine to obtain the liquid flow channel.
Example 5
The roll-bond resistant liquid cooling heat exchanger of the embodiment is different from the roll-bond resistant liquid cooling heat exchanger of the embodiment 1 only in that the roll-bond resistant layer consists of the following components in percentage by mass: 99% of boron nitride and 1% of zinc oxide, wherein the boron nitride is granular, and the diameter of the boron nitride granules is 1-2 μm. The components and contents of the rolling inhibitor layer are measured by an EDS (electron-dispersive spectroscopy) analyzer.
The preparation method of the roll-bond liquid cooling heat exchanger of the embodiment comprises the following steps:
1) coating a rolling inhibitor on the surface of an aluminum plate, heating to 150 ℃, preserving heat for 3min, drying, covering another aluminum plate on the aluminum plate coated with the rolling inhibitor, then heating to 580 ℃, preserving heat for 30min, and annealing after rolling to form a substrate; the rolling retardant consists of the following components in percentage by mass: 90% of boron nitride emulsion, 1.0% of ethylene glycol, 0.5% of zinc sulfate, 4% of paraffin, 0.5% of carboxymethyl cellulose and 4% of deionized water;
2) drilling a blowing hole on the substrate in the step 1), and then blowing by adopting 9MPa gas to enable the aluminum plate to be blown up to form a liquid flow channel in the substrate;
3) introducing ammonia water with the mass fraction of 0.3% into the liquid flow channel for washing for 2min, introducing glycol solution with the mass fraction of 90% for washing for 1min, and drying to obtain the catalyst;
4) and sealing the liquid flow channel by adopting argon arc welding, and drilling a liquid inlet and a liquid outlet on the substrate by using a drilling machine to obtain the liquid flow channel.
Example 6
The roll-bond resistant liquid cooling heat exchanger of the embodiment is different from the roll-bond resistant liquid cooling heat exchanger of the embodiment 1 only in that the roll-bond resistant layer consists of the following components in percentage by mass: 97.6 percent of boron nitride and 2.4 percent of magnesium nitride, wherein the boron nitride is granular, and the diameter of the boron nitride granules is 1-2 mu m. The components and contents of the rolling inhibitor layer are measured by an EDS (electron-dispersive spectroscopy) analyzer.
The preparation method of the roll-bond liquid cooling heat exchanger of the embodiment comprises the following steps:
1) coating a rolling inhibitor on the surface of an aluminum plate, heating to 150 ℃, preserving heat for 3min, drying, covering another aluminum plate on the aluminum plate coated with the rolling inhibitor, then heating to 580 ℃, preserving heat for 30min, and annealing after rolling to form a substrate; the rolling retardant consists of the following components in percentage by mass: 82% of boron nitride emulsion, 1.0% of propylene glycol, 2% of magnesium nitride, 3% of propolis, 2% of carboxymethyl cellulose and 10% of deionized water;
2) drilling a blowing hole on the substrate in the step 1), and then blowing by adopting 9MPa gas to enable the aluminum plate to be blown up to form a liquid flow channel in the substrate;
3) introducing ammonia water with the mass fraction of 0.3% into the liquid flow channel for washing for 2min, introducing glycol solution with the mass fraction of 90% for washing for 1min, and drying to obtain the catalyst;
4) and sealing the liquid flow channel by adopting argon arc welding, and drilling a liquid inlet and a liquid outlet on the substrate by using a drilling machine to obtain the liquid flow channel.
Example 7
The roll-bond resistant liquid cooling heat exchanger of the embodiment is different from the roll-bond resistant liquid cooling heat exchanger of the embodiment 1 only in that the roll-bond resistant layer consists of the following components in percentage by mass: 98.9 percent of boron nitride and 1.1 percent of silicon dioxide, wherein the boron nitride is granular, and the diameter of the boron nitride granules is 1-2 mu m. The components and contents of the rolling inhibitor layer are measured by an EDS (electron-dispersive spectroscopy) analyzer.
The preparation method of the roll-bond liquid cooling heat exchanger of the embodiment comprises the following steps:
1) coating a rolling inhibitor on the surface of an aluminum plate, heating to 150 ℃, preserving heat for 3min, drying, covering another aluminum plate on the aluminum plate coated with the rolling inhibitor, then heating to 580 ℃, preserving heat for 30min, and annealing after rolling to form a substrate; the rolling retardant consists of the following components in percentage by mass: 93% of boron nitride emulsion, 1.0% of ethylene glycol, 1.0% of sodium metasilicate and 5% of deionized water;
2) drilling a blowing hole on the substrate in the step 1), and then blowing by adopting 9MPa gas to enable the aluminum plate to be blown up to form a liquid flow channel in the substrate;
3) introducing ammonia water with the mass fraction of 0.3% into the liquid flow channel for washing for 2min, introducing glycol solution with the mass fraction of 90% for washing for 1min, and drying to obtain the catalyst;
4) and sealing the liquid flow channel by adopting argon arc welding, and drilling a liquid inlet and a liquid outlet on the substrate by using a drilling machine to obtain the liquid flow channel.
Examples of the experiments
The aluminum tube (wall thickness of 1.2mm) corresponding to the liquid flow passage of the roll-bond liquid-cooled heat exchanger in example 1 was subjected to a salt spray test, and the wall thickness of the aluminum tube after the salt spray test became 1.19mm, which indicates that the inner surface of the aluminum tube corresponding to the liquid flow passage in example 1 was not substantially corroded, and the appearance thereof is as shown in fig. 2. The inner surfaces of the aluminum pipes corresponding to the liquid flow passages formed by using the rolling inhibitors in the other examples were also substantially not corroded, and the results were substantially the same as those in example 1.
The boron nitride emulsion in the rolling inhibitor raw material in the example 1 is replaced by graphite emulsion to prepare a graphite emulsion rolling inhibitor, then the liquid cooling heat exchanger is prepared by using the graphite emulsion rolling inhibitor by adopting the same method as the example 1, the salt spray test is carried out on the corresponding aluminum pipe (the thickness is 1.2mm) at the liquid flow passage of the heat exchanger, after the salt spray test, the aluminum pipe wall is seriously corroded, and as shown in figure 3, the pipe wall thickness is changed to 0.29 mm.
According to the comparison, the roll-resistant agent layer is arranged on the inner surface of the liquid flow channel, the roll-resistant agent layer comprises boron nitride, the boron nitride has chemical corrosion resistance, high-temperature stability and thermal shock resistance and high hardness, and the boron nitride is used for the roll-resistant agent layer, so that when fluid is filled in the liquid flow channel, the corrosion of the inner surface of the liquid cooling heat exchanger can be prevented, and the service life of the roll-resistant liquid cooling heat exchanger is prolonged.
Various other modifications and changes may be made by those skilled in the art based on the above-described technical solutions and concepts, and all such modifications and changes should fall within the scope of the claims of the present invention.
Claims (10)
1. The utility model provides a roll-bond formula liquid cooling heat exchanger which characterized in that, roll-bond formula liquid cooling heat exchanger includes the base plate and forms liquid runner in the base plate, the internal surface of liquid runner is formed with the rolling inhibitor layer, the rolling inhibitor layer includes boron nitride.
2. A roll-bond liquid-cooled heat exchanger according to claim 1, wherein the boron nitride is in the form of particles having a diameter of 1 to 2 μm.
3. The roll-bond liquid cooled heat exchanger of claim 1, wherein the blocker layer further comprises one or both of zinc oxide and magnesium nitride.
4. The roll-bond liquid cooled heat exchanger of claim 1, wherein the blocker layer further comprises silica.
5. The roll-bond liquid cooled heat exchanger according to any of claims 1-4, wherein the blocker layer is comprised of the following components in mass percent: 93-99% of boron nitride, 0.3-5.7% of silicon dioxide, and the balance of one or two of zinc oxide and magnesium nitride.
6. A method of making a blown-up liquid cooled heat exchanger as claimed in claim 1, comprising the steps of:
1) coating or printing a rolling inhibitor on the surface of an aluminum plate, drying after heating treatment, covering another aluminum plate, heating to 450-580 ℃, preserving heat for 30-60 min, and annealing after rolling to form a substrate, wherein the rolling inhibitor comprises boron nitride emulsion and water, and also comprises one or more of the following components: moisture absorbent, preservative, curing agent, lubricant, thickener, additive;
2) drilling a blowing hole on the substrate in the step 1), and then blowing by adopting gas to enable the substrate to be blown up to form a liquid flow channel in the substrate;
3) and sealing the liquid flow channel by adopting argon arc welding, and then drilling a liquid inlet and a liquid outlet on the substrate to obtain the liquid flow channel.
7. The method according to claim 6, wherein the heating step in step 1) is carried out at 110-150 ℃ for 3-10 min.
8. The preparation method of claim 6, wherein the rolling inhibitor comprises the following components in percentage by mass: 60-90% of boron nitride emulsion, 1.0-5.0% of moisture absorbent, 0.5-2.0% of preservative, 0.2-1.0% of curing agent, 3.0-8.0% of lubricant, 0.5-5.0% of thickening agent, 0-9.5% of additive and the balance of water.
9. The preparation method of claim 6, wherein the curing agent is any one or more of sodium silicate, sodium metasilicate and potassium sodium silicate; the preservative is any one or more of zinc oxide, zinc chloride, zinc sulfate, sodium metazincate and magnesium nitride.
10. The preparation method according to claim 6, wherein the thickener is any one or more of methylcellulose, carboxymethylcellulose, hydroxyethylcellulose and hydroxypropylmethylcellulose; the lubricant is any one or more of gum arabic, propolis, paraffin and mineral oil; the additive is any one or more of a dispersing agent, a defoaming agent and a mildew preventive; the moisture absorbent is one or more of ethylene glycol, propylene glycol and glycerol.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117529041A (en) * | 2023-12-04 | 2024-02-06 | 广东液冷时代科技有限公司 | Rear backboard air conditioning system of server cabinet |
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| CN1257908A (en) * | 1999-12-29 | 2000-06-28 | 上海宝钢集团公司 | Lubricant for heat processing of metals |
| CN103464966A (en) * | 2013-08-21 | 2013-12-25 | 浙江嘉熙光电设备制造有限公司 | Pure aluminum plate single-side blow-up process |
| CN104619156A (en) * | 2015-02-16 | 2015-05-13 | 华为技术有限公司 | Cooling device and communication product |
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| CN117529041A (en) * | 2023-12-04 | 2024-02-06 | 广东液冷时代科技有限公司 | Rear backboard air conditioning system of server cabinet |
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