WO2018047971A1 - Matériau d'ailette pré-revêtu et échangeur de chaleur utilisant ledit matériau d'ailette pré-revêtu - Google Patents

Matériau d'ailette pré-revêtu et échangeur de chaleur utilisant ledit matériau d'ailette pré-revêtu Download PDF

Info

Publication number
WO2018047971A1
WO2018047971A1 PCT/JP2017/032783 JP2017032783W WO2018047971A1 WO 2018047971 A1 WO2018047971 A1 WO 2018047971A1 JP 2017032783 W JP2017032783 W JP 2017032783W WO 2018047971 A1 WO2018047971 A1 WO 2018047971A1
Authority
WO
WIPO (PCT)
Prior art keywords
mass
less
aluminum alloy
fin
alloy plate
Prior art date
Application number
PCT/JP2017/032783
Other languages
English (en)
Japanese (ja)
Inventor
幸平 塩見
涼子 藤村
貴彦 水田
Original Assignee
株式会社Uacj
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社Uacj filed Critical 株式会社Uacj
Publication of WO2018047971A1 publication Critical patent/WO2018047971A1/fr

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K1/00—Soldering, e.g. brazing, or unsoldering
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K1/00—Soldering, e.g. brazing, or unsoldering
    • B23K1/20—Preliminary treatment of work or areas to be soldered, e.g. in respect of a galvanic coating
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C21/00—Alloys based on aluminium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C21/00—Alloys based on aluminium
    • C22C21/02—Alloys based on aluminium with silicon as the next major constituent
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C21/00—Alloys based on aluminium
    • C22C21/10—Alloys based on aluminium with zinc as the next major constituent
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/24—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely
    • F28F1/32—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely the means having portions engaging further tubular elements
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
    • F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal

Definitions

  • the present invention relates to a pre-coated fin material having, for example, an aluminum alloy plate and a coating film, and a heat exchanger using the same.
  • an all-aluminum heat exchanger has an aluminum tube through which a refrigerant flows and an aluminum fin for exchanging heat between air outside the tube, and the tube and the fin are joined to each other. ing. Since the hydrophilicity of the fin greatly affects the heat exchange performance of the heat exchanger, a fin having a hydrophilic coating film formed on the surface is often used. For joining the fin and the pipe having such a hydrophilic coating film, a method of mechanically joining the two by expanding the pipe inserted into the hole provided in the fin (patent) Reference 1 and Patent Reference 2).
  • brazing joining is assumed.
  • a general resin-based or inorganic coating film is altered or decomposed at the heating temperature at the time of brazing, it cannot sufficiently exhibit hydrophilicity after brazing.
  • flux action is hindered by the presence of the coating film, and brazing joining may be insufficient. Therefore, when manufacturing a heat exchanger by brazing, the coating film is generally formed after brazing (refer patent document 3).
  • the manufacturing cost increases because a dedicated coating film forming facility is required. In this case, it is difficult to cope with an increase in the size of the heat exchanger.
  • a fin material having a coating film mainly composed of silicate has been proposed as a fin material having a coating film pre-coated before brazing (see Patent Document 4). Further, in the production of a heat exchanger, a method for producing a fin in which a film containing a support such as xylene or a silicon-based binder such as silicone oil is formed before brazing has been proposed (Patent Document 5). reference).
  • fin films pre-coated with conventional coatings and films have insufficient hydrophilic sustainability after brazing and insufficient brazing function. That is, the conventional fin material did not have excellent hydrophilic sustainability and excellent brazing function. Therefore, it is necessary to supply a brazing material separately when manufacturing the heat exchanger using the fin material. As a result, a decrease in manufacturability due to an increase in the manufacturing process and an increase in manufacturing cost due to member procurement are expected.
  • the pre-coated coating film or coating film adversely affects the brazing joint between the fin using the brazing material and the aluminum tube, and there is a possibility that the joining property is insufficient. Therefore, development of a pre-coated fin material that can maintain a superior hydrophilic sustainability and can produce a heat exchanger that can be joined without using a brazing material and has excellent joining properties between the fin and the aluminum tube. Is desired.
  • the present invention has been made in view of such a background, and is excellent in the hydrophilic sustainability of the fins, can be joined between the fins and the aluminum pipe without separately supplying a brazing material, and has excellent joining properties.
  • An object of the present invention is to provide a pre-coated fin material capable of producing an exchanger, and a heat exchanger using the pre-coated fin material.
  • One aspect of the present invention is an aluminum alloy plate; A coating formed on the surface of the aluminum alloy plate, The aluminum alloy plate contains Si: 1 to 5% by mass, and the balance has chemical components composed of Al and inevitable impurities,
  • the pre-coated fin material has a Si content in the coating film of 10 to 300 mg / m 2 .
  • Another aspect of the present invention resides in a heat exchanger having a core portion made of a fin made of the pre-coated fin material and an aluminum tube joined to the fin.
  • the aluminum alloy plate contains Si in the specific range, and the balance has chemical components composed of Al and inevitable impurities. Therefore, for example, by heating at about 600 ° C., a liquid phase is generated from the inside of the aluminum alloy plate and oozes out to the surface, and the liquid phase solidifies during cooling, so that, for example, joining with other aluminum members such as an aluminum tube is possible. It becomes possible. Therefore, it becomes possible to join without separately using a joining member such as a brazing material, and it is possible to ensure a sufficient joining property without using a brazing material. Furthermore, since joining is possible without using a joining member such as a brazing material, it is possible to meet the demand for cost reduction. Moreover, since the components of the aluminum alloy plate itself are used for joining, the performance of the coating film formed on the surface of the aluminum alloy plate by a joining member such as a brazing material is not impaired.
  • the coating film in which the Si amount is adjusted as described above is unlikely to deteriorate in coating film performance due to heating or the like. Therefore, the coating film can exhibit excellent hydrophilicity even after heating at the time of joining with another member such as an aluminum tube, and can maintain the initial excellent hydrophilicity for a long period of time. Moreover, a coating film hardly inhibits joining with other aluminum members, such as an aluminum pipe, and a precoat fin material, for example. Therefore, although the said precoat fin material has a coating film, sufficient joining with an aluminum pipe, for example is possible.
  • the components of the coating film and the aluminum alloy plate are optimized as described above. Therefore, it is possible to manufacture a heat exchanger that is excellent in hydrophilic sustainability of the fins, can join the fins to the aluminum pipe without separately supplying a brazing material, and has excellent joining properties.
  • the said heat exchanger has a core part which consists of the fin which consists of a precoat fin material excellent in the above-mentioned hydrophilic sustainability and joining property, and the aluminum pipe joined to the fin. Therefore, in the heat exchanger, since fins exhibit excellent hydrophilic sustainability, an increase in ventilation resistance can be suppressed, and good heat exchange performance can be stably exhibited for a long period of time. Further, in the heat exchanger, for example, an aluminum tube and a fin are sufficiently joined, so that the heat exchange performance between the aluminum tube and the fin is improved.
  • FIG. 8 Sectional drawing of the precoat fin material in Example 1.
  • FIG. 8 The perspective view of the core part (specifically minicore) of the heat exchanger in Example 1.
  • Example 1 (a) The fragmentary sectional view of the contact part of the fin and aluminum tube before joining, (b) The fragmentary sectional view of the contact part of the fin and aluminum tube after joining.
  • FIG. The perspective view of the principal part of the heat exchanger in Example 3.
  • FIG. 8 is a cross-sectional view taken along line III-III in FIG.
  • the pre-coated fin material is used for joining a fin made of the pre-coated fin material and an aluminum tube to obtain a heat exchanger.
  • the “aluminum tube” is a concept including not only a pure aluminum tube but also an aluminum alloy tube. Specifically, A1000 series pure aluminum, A3000 series aluminum alloy, or the like can be used.
  • the pre-coated fin material has an aluminum alloy plate.
  • the chemical components of the aluminum alloy plate include, for example, Si: 1 to 5% by mass, and the balance is Al and inevitable impurities.
  • Si silicon
  • the Si content is preferably 1.5% by mass or more, and more preferably 2% by mass or more.
  • the Si content exceeds 5% by mass, the amount of Si particles in the aluminum alloy plate is increased, and the amount of liquid phase generated is increased. It becomes difficult to maintain the shape as a material.
  • the Si content is preferably 4% by mass or less, and more preferably 3% by mass or less.
  • the chemical components of the aluminum alloy plate include Fe, Mn, Zn, Mg, Cu, In, Sn, Ti, V, Zr, Cr, Ni, Be, Sr, Bi. Further, at least one element selected from the group consisting of Na, and Ca can be further contained.
  • the chemical components of the aluminum alloy plate include, for example, Si: 1 to 5% by mass, and at least one of Fe: 0.1 to 2% by mass and Mn: 0.1 to 2% by mass, with the balance being Al and inevitable impurities. In this case, the strength as a fin material can be improved.
  • Fe has the effect of dispersing as a crystallized substance and preventing a decrease in strength particularly at high temperatures.
  • the addition amount of Fe is less than 0.1% by mass, not only the above effects are small, but also high-purity ingots need to be used, resulting in an increase in cost.
  • it exceeds 2 mass% a coarse intermetallic compound will produce
  • the fin made of the pre-coated fin material is exposed to a corrosive environment (particularly a corrosive environment in which a liquid flows), the corrosion resistance decreases.
  • the addition amount of Fe is preferably 0.1 to 2% by mass as described above.
  • a more preferable addition amount of Fe is 0.2% by mass to 1% by mass.
  • Mn forms an Al—Fe—Mn—Si based intermetallic compound together with Fe and Si and acts as dispersion strengthening, or it is important to improve strength by solid solution strengthening by solid solution strengthening in the aluminum matrix. It is an additive element.
  • the amount of Mn added is preferably 0.1 to 2% by mass as described above.
  • a more preferable amount of Mn is 0.3 to 1.5% by mass.
  • the chemical component of the aluminum alloy plate can further contain Zn: 0.05 to 6% by mass. That is, the chemical component of the aluminum alloy plate contains, for example, Si: 1 to 5% by mass, and at least one of Fe: 0.1 to 2% by mass and Mn: 0.1 to 2% by mass, Further, Zn: 0.05 to 6% by mass, the balance being Al and inevitable impurities. In this case, the corrosion resistance of the pre-coated fin material can be improved.
  • Addition of Zn is effective in improving corrosion resistance due to sacrificial anticorrosive action.
  • Zn is dissolved almost uniformly in the matrix, but when a liquid phase is generated, it dissolves into the liquid phase and the Zn in the liquid phase is concentrated. When the liquid phase oozes out to the surface, the Zn concentration in the portion increases, so that the corrosion resistance is improved by the sacrificial anodic action.
  • action which prevents an aluminum pipe etc. can also be worked by using a precoat fin material for a fin.
  • the added amount of Zn exceeds 6% by mass, the corrosion rate increases and the self-corrosion resistance decreases.
  • the amount of Zn added is preferably 0.05% by mass or more. Accordingly, Zn is preferably 0.05 to 6% by mass or less as described above.
  • the chemical component of the aluminum alloy plate can further contain at least one of Mg: 2 mass% or less and Cu: 1.5 mass% or less. That is, the chemical component of the aluminum alloy plate contains, for example, Si: 1 to 5% by mass, and at least one of Fe: 0.1 to 2% by mass and Mn: 0.1 to 2% by mass, Zn: 0.05 to 6% by mass, further containing at least one of Mg: 2% by mass or less and Cu: 1.5% by mass or less, with the balance being Al and inevitable impurities. In this case, the strength of the pre-coated fin material can be further improved.
  • Mg undergoes age hardening by Mg 2 Si after bonding heating, and the strength is improved by this age hardening.
  • Mg is an additive element that exhibits the effect of improving the strength.
  • the amount of Mg added exceeds 2% by mass, it reacts with the flux to form a high melting point compound, so that the bondability is significantly lowered. Therefore, the amount of Mg added is preferably 2% by mass or less as described above. A more preferable amount of Mg is 0.05% by mass to 2% by mass.
  • not only Mg but also other alloy components include 0 when the amount is less than a predetermined addition amount.
  • Cu is an additive element that improves the strength by solid solution in the matrix. However, if the amount of Cu added exceeds 1.5%, the corrosion resistance decreases. Therefore, the amount of Cu added is preferably 1.5% by mass or less as described above. A more preferable amount of Cu is 0.05% to 1.5%.
  • the chemical component of the aluminum alloy plate may further contain at least one of In: 0.3% by mass or less and Sn: 0.3% by mass or less. That is, the chemical component of the aluminum alloy plate contains, for example, Si: 1 to 5% by mass, and at least one of Fe: 0.1 to 2% by mass and Mn: 0.1 to 2% by mass, Zn: 0.05 to 6% by mass, further containing at least one of In: 0.3% by mass or less and Sn: 0.3% by mass or less, with the balance being Al and inevitable impurities. In this case, the deterioration of the corrosion resistance of the precoated fin material can be suppressed.
  • the amount of each of these elements added is preferably 0.3% by mass or less as described above.
  • a more preferable addition amount is 0.05 to 0.3% by mass.
  • the chemical components of the aluminum alloy plate are further Ti: 0.3% by mass or less, V: 0.3% by mass or less, Zr: 0.3% by mass or less, Cr: 0.3% by mass or less, and Ni: 2% by mass. % Or less can be contained. That is, the chemical component of the aluminum alloy plate contains, for example, Si: 1 to 5% by mass, and at least one of Fe: 0.1 to 2% by mass and Mn: 0.1 to 2% by mass, Zn: 0.05 to 6% by mass, Ti: 0.3% by mass or less, V: 0.3% by mass or less, Zr: 0.3% by mass or less, Cr: 0.3% by mass or less And Ni: contains at least one selected from 2% by mass or less, with the balance being Al and inevitable impurities. In this case, the strength as a fin material can be improved.
  • Ti and V have the effect of preventing the progress of corrosion in the plate thickness direction by being dissolved in a matrix and being dissolved in a matrix to improve the strength.
  • the added amount exceeds 0.3% by mass, a giant crystallized product is generated, which impairs moldability and corrosion resistance. Therefore, the amount of Ti and V added is preferably 0.3% by mass or less as described above. A more preferable addition amount is 0.05 to 0.3% by mass.
  • the amount of Zr added is preferably 0.3% by mass as described above. A more preferable addition amount is 0.05% by mass to 0.3% by mass.
  • the amount of Cr added is preferably 0.3% by mass or less as described above. A more preferable addition amount is 0.05 to 0.3% by mass.
  • Ni is crystallized or precipitated as an intermetallic compound, and has an effect of improving the strength after bonding by dispersion strengthening.
  • the addition amount exceeds 2% by mass, it becomes easy to form a coarse intermetallic compound, and the workability is lowered.
  • the self-corrosion resistance is also reduced. Therefore, the amount of Ni added is preferably 2% by mass or less as described above. A more preferable addition amount is 0.05 to 2% by mass.
  • the chemical components of the aluminum alloy plate are further Be: 0.1 mass% or less, Sr: 0.1 mass% or less, Bi: 0.1 mass% or less, Na: 0.1 mass% or less, Ca: 0.05 At least 1 sort (s) chosen from the mass% or less can be contained.
  • the chemical component of the aluminum alloy plate contains, for example, Si: 1 to 5% by mass, and at least one of Fe: 0.1 to 2% by mass and Mn: 0.1 to 2% by mass, Zn: 0.05 to 6% by mass, Be: 0.1% by mass or less, Sr: 0.1% by mass or less, Bi: 0.1% by mass or less, Na: 0.1% by mass or less Ca: At least one selected from 0.05% by mass or less, with the balance being Al and inevitable impurities. In this case, the bondability can be further improved by improving the liquid phase characteristics.
  • More preferable ranges of these elements are Be: 0.0001 to 0.1% by mass, Sr: 0.0001 to 0.1% by mass, Bi: 0.0001 to 0.1% by mass, Na: 0.0001. -0.1 mass%, Ca: 0.0001-0.05 mass%.
  • These trace elements have a small effect when the amount is less than the above-mentioned more preferable specified range, and when the amount exceeds the above-mentioned more preferable specified range, adverse effects such as a decrease in corrosion resistance may occur.
  • 1 type, or 2 or more types of Be, Sr, Bi, Na, and Ca it is required that all of the added components are within the above preferable or more preferable component ranges.
  • the aluminum alloy plate is cast using a DC (Direct Chill) casting method, and the casting speed of the slab at the time of casting is controlled as follows, for example. Since the casting speed affects the cooling speed, it is preferably 20 to 100 mm / min. When the casting speed is less than 20 mm / min, a sufficient cooling rate cannot be obtained, and crystallized intermetallic compounds such as Si-based intermetallic compounds and Al—Fe—Mn—Si-based intermetallic compounds are coarsened. On the other hand, when it exceeds 100 mm / min, the aluminum material is not sufficiently solidified during casting, and a normal ingot cannot be obtained. More preferably, it is 30 to 80 mm / min.
  • a casting speed can be adjusted according to the composition of the alloy material to manufacture.
  • the cooling rate depends on the cross-sectional shape of the slab such as thickness and width
  • the cooling rate of 0.1 to 2 ° C./second can be achieved at the center of the ingot by setting the casting rate to 20 to 100 mm / min.
  • the ingot (slab) thickness during DC continuous casting is preferably 600 mm or less. When the slab thickness exceeds 600 mm, a sufficient cooling rate cannot be obtained and the intermetallic compound becomes coarse. A more preferable slab thickness is 500 mm or less.
  • the slab manufactured by the DC casting method is subjected to a heating process before hot rolling, a hot rolling process, a cold rolling process, and an annealing process.
  • a homogenization treatment may be performed after casting and before hot rolling.
  • the slab manufactured by the DC casting method is subjected to a heating process before hot rolling after homogenization or without being homogenized.
  • the heating holding temperature is 400 to 570 ° C. and the holding time is about 0 to 15 hours.
  • holding temperature is less than 400 degreeC, the deformation resistance of the slab in hot rolling is large, and there exists a possibility that a crack may generate
  • holding temperature exceeds 570 degreeC, there exists a possibility that melting may arise locally.
  • the holding time of 0 hour means that the heating is terminated immediately after reaching the heating holding temperature.
  • the hot rolling process includes a hot sparse rolling stage and a hot finish rolling stage.
  • the total rolling reduction in the hot rough rolling stage is 92 to 97%, and each pass of the hot rough rolling includes three or more passes where the rolling reduction is 15% or more.
  • a coarse crystallized product is generated in the final solidified part.
  • the crystallization product is subjected to shearing by rolling and is divided into small pieces, so that the crystallization product is observed in the form of particles after rolling.
  • the hot rolling process includes a hot rough rolling stage for obtaining a plate having a certain thickness from the slab and a hot finish rolling stage for obtaining a thickness of about several mm. In order to separate the crystallized product, it is preferable to control the rolling reduction in the hot rough rolling stage rolled from the slab.
  • the slab thickness is rolled from 300 to 700 mm to about 15 to 40 mm, but the total rolling reduction in the hot rough rolling stage is 92 to 97%, and the hot rough rolling stage By including a pass having a rolling reduction of 15% or more three times or more, a coarse crystallized product can be finely divided.
  • the Si-based intermetallic compound and the Al—Fe—Mn—Si-based intermetallic compound, which are crystallized substances, can be refined, and an appropriate distribution state can be obtained.
  • the total rolling reduction in the hot rough rolling stage is less than 92%, the effect of refining the crystallized product cannot be obtained sufficiently.
  • the thickness of the slab is substantially increased, and the cooling rate during casting is slowed down, so that the crystallized material is coarsened, and the crystallized material is sufficiently refined even when hot rough rolling is performed.
  • the reduction rate in each pass in the hot rough rolling stage also affects the distribution of intermetallic compounds, and the crystallized product is divided by increasing the reduction rate in each pass. If the number of passes with a rolling reduction of 15% or more in each pass in the hot rough rolling stage is less than 3 times, the effect of refining the crystallized product is not sufficient.
  • the reduction ratio is less than 15%, the reduction ratio is not sufficient and the crystallized material is not refined, so that it is not a target.
  • the upper limit of the number of passes at which the rolling reduction is 15% or more is not particularly specified, but it is realistic that the upper limit is about 10 times.
  • the hot rolled material is subjected to a cold rolling process.
  • the conditions for the cold rolling process are not particularly limited.
  • an annealing process is provided in which the cold rolled material is sufficiently annealed to have a recrystallized structure.
  • the rolled material is subjected to final cold rolling to obtain a final thickness. If the processing rate ⁇ (plate thickness before processing ⁇ plate thickness after processing) / plate thickness before processing ⁇ ⁇ 100 (%) in the final cold rolling stage is too large, the driving force for recrystallization during joining heating is too high. By increasing the size and reducing the crystal grains, the deformation during the bonding heating increases. Therefore, as described above, the processing amount in the final cold rolling stage is set so that T / To is 1.40 or less.
  • the processing rate in the final cold rolling stage is preferably about 10 to 30%.
  • the coating film formed on the surface of the aluminum alloy plate will be described.
  • the coating film may be formed on one side of the aluminum alloy plate or may be formed on both sides.
  • the coating film is formed of, for example, an oxide containing silicon (Si), a composite oxide, or the like, and contains Si.
  • the amount of Si in the coating film is 10 to 300 mg / m 2 .
  • the amount of Si in the coating film is more preferably 100 mg / m 2 or more.
  • the amount of Si exceeds 300 mg / m 2 , the bondability may be impaired by the coating film.
  • Si amount is the amount per one side of the coating film.
  • the adhesion amount of the coating film is preferably 20 to 800 mg / m 2 .
  • the coating film preferably contains at least one of silicate and amorphous silica.
  • the hydrophilic durability of the coating film is further improved.
  • the coating film more preferably contains at least silicate.
  • Silicate is, for example, sodium silicate or lithium silicate.
  • the coating film containing a silicate can be formed by coating an aqueous solution containing a silicate such as water glass on the surface of an aluminum alloy plate and drying it. From the viewpoint of further improving the hydrophilic sustainability, the silicate is more preferably derived from water glass.
  • amorphous silica for example, there is an aggregate formed by drying amorphous colloidal silica, and from the viewpoint that hydrophilic sustainability can be further improved, amorphous silica is derived from amorphous colloidal silica. It is preferable.
  • the coating film containing amorphous silica can be formed by coating amorphous colloidal silica on the surface of an aluminum alloy plate and drying. Also, a mixture of amorphous colloidal silica and an aqueous solution containing silicate is applied to the surface of the aluminum alloy plate and dried to form a coating film containing amorphous silica and silicate. be able to.
  • the coating film can further contain a fluoride flux.
  • the fluoride flux content may be zero.
  • the content of the fluoride flux is preferably 0 or more and 5000 mg / m 2 or less. In this case, the flux effect can be obtained and the hydrophilic sustainability can be further improved. If the content of the fluoride flux is too small, the effect of adding the flux may not be sufficiently obtained. Therefore, the content of the fluoride flux is more preferably 40 mg / m 2 or more, further preferably 500 mg / m 2 or more, and further preferably 1000 mg / m 2 or more. On the other hand, when there is too much content of fluoride flux, there exists a possibility that hydrophilic sustainability may fall.
  • the content of the fluoride flux is preferably 5000 mg / m 2 or less, more preferably 3000 mg / m 2 or less, as described above, and 2000 mg / m 2. More preferably, it is as follows.
  • the coating amount is preferably 50 to 6000 mg / m 2 .
  • the coating film may have a Si content of 10 to 300 mg / m 2 , and may be formed by a single layer containing a fluoride flux. May be formed of a laminate of a layer having a thickness of 10 to 300 mg / m 2 and a layer mainly composed of fluoride flux.
  • the coating film is formed of a layer containing, for example, at least one of silicate and amorphous silica and a fluoride flux.
  • the coating film is formed of, for example, a layer mainly containing at least one of silicate and amorphous silica and a layer mainly containing fluoride flux.
  • the coating film can further contain an organic resin.
  • the coating property at the time of forming the coating film is improved.
  • it can prevent that Si components, such as a silicate and an amorphous silica, fall off from a coating film.
  • the organic resin is preferably made of a water-soluble acrylic resin and / or polyoxyethylene alkylene glycol (PAE).
  • PAE polyoxyethylene alkylene glycol
  • the pre-coated fin material has a base treatment layer made of a chemical conversion film formed between the aluminum alloy plate and the coating film.
  • the base treatment layer made of the chemical conversion film can be formed by, for example, phosphoric acid chromate treatment, zirconium phosphate treatment, boehmite treatment, or the like.
  • the ground treatment layer only needs to improve the adhesion between the aluminum alloy plate and the coating film, and may be formed by other treatments.
  • shapes such as insertion fins and corrugated fins can be adopted as the fins made of the pre-coated fin material.
  • the fin material may have a slit.
  • a round tube or a flat tube can be adopted.
  • An inner column that divides the interior into a plurality of passages may be formed in the pipe. More specifically, for example, a flat multi-hole tube can be adopted as the aluminum tube.
  • the joining ability exhibited by the aluminum alloy plate itself of the fin material can be utilized without using a brazing material.
  • the bonding heating conditions can be managed. Specifically, it is above the solidus temperature where the liquid phase is generated inside the aluminum alloy plate and below the liquidus temperature, and the liquid phase is generated on the aluminum alloy plate, the strength is lowered and the shape is maintained. Heating is performed for a time required for bonding at a temperature below the temperature at which it cannot be performed.
  • liquid phase ratio the ratio of the mass of the liquid phase generated in the aluminum alloy plate to the total mass of the aluminum alloy plate. It is preferable to join at a temperature at which Since the bonding cannot be performed unless the liquid phase is generated, the liquid phase ratio needs to be more than 0%. However, if the liquid phase is small, joining may be difficult, so the liquid phase ratio is preferably 5% or more. If the liquid phase ratio exceeds 35%, the amount of the liquid phase to be generated is too large, and the aluminum alloy plate may be greatly deformed during bonding heating, and the shape may not be maintained. A more preferable liquid phase ratio is 5 to 30%, and a further preferable liquid phase ratio is 10 to 20%.
  • the time during which the liquid phase ratio is 5% or more is 30 seconds or more and 3600 seconds or less. Is preferred. More preferably, the time when the liquid phase ratio is 5% or more is 60 seconds or more and 1800 seconds or less, whereby further sufficient filling is performed and reliable bonding is performed. If the time during which the liquid phase ratio is 5% or more is less than 30 seconds, the joint may not be sufficiently filled with the liquid phase. On the other hand, if it exceeds 3600 seconds, the deformation of the aluminum alloy plate may proceed. In the method of joining the fin and the aluminum tube, the liquid phase moves only in the very vicinity of the joint, so that the time required for filling does not depend on the size of the joint.
  • the bonding temperature is 580 ° C. to 640 ° C.
  • the holding time at the bonding temperature is about 0 to 10 minutes.
  • 0 minutes means that the cooling is started as soon as the temperature of the member reaches a predetermined joining temperature.
  • the holding time is more preferably 30 seconds to 5 minutes.
  • the bonding temperature for example, when the Si content of the aluminum alloy plate is about 1 to 1.5%, it is desirable to increase the bonding heating temperature to 610 to 640 ° C.
  • the bonding heating temperature is preferably set to a low value of 580 to 590 ° C.
  • the liquid phase ratio can be usually obtained from the alloy composition and the highest temperature by the lever rule using an equilibrium diagram.
  • the phase diagram can be used to determine the liquid phase ratio using the principle of leverage.
  • the liquid phase ratio can be obtained using equilibrium calculation diagram software.
  • the equilibrium calculation phase diagram software incorporates a technique for determining the liquid phase ratio based on the lever principle using the alloy composition and temperature.
  • Equilibrium calculation state diagram software includes Thermo-Calc; Thermo-Calc Software AB, etc.
  • the heating atmosphere in the heat treatment is preferably a non-oxidizing atmosphere substituted with nitrogen, argon or the like.
  • better bondability can be obtained by using a non-corrosive flux.
  • non-corrosive flux coating method examples include a method in which fins and an aluminum tube are assembled and then sprinkled with flux powder, a method in which flux powder is suspended in water and sprayed, and the like.
  • the adhesion of the coating can be improved by mixing and applying a binder such as an acrylic resin to the flux powder.
  • Non-corrosive fluxes used to obtain normal flux functions include KAlF 4 , K 2 AlF 5 , K 2 AlF 5 .H 2 O, K 3 AlF 6 , AlF 3 , KZnF 3 , K 2 SiF 6 , Examples thereof include Cs 3 AlF 6 , CsAlF 4 .2H 2 O, and Cs 2 AlF 5 .H 2 O.
  • the fin made of the pre-coated fin material can achieve good bonding by the above heat treatment and control of the heating atmosphere.
  • the fin since the fin is thin, the shape may not be maintained if the stress generated inside is too high.
  • the liquid phase ratio at the time of joining becomes large, it is possible to maintain a good shape by keeping the stress generated in the fin at a relatively small stress.
  • P (kPa) and the liquid phase rate is V (%), P ⁇ 460-12V If the conditions are met, a very stable joint can be obtained.
  • the value indicated by the right side (460-12V) of this equation is the critical stress, and if a stress exceeding this value is applied to the fin, there is a possibility that a large deformation will occur.
  • the stress generated in the fin is obtained from the shape and load. For example, it can be calculated using a structural calculation program or the like.
  • the heat exchanger has a core portion made of a fin made of a pre-coated fin material and an aluminum tube joined to the fin.
  • a heat exchanger is manufactured by attaching a header, a side support, an entrance / exit pipe
  • the heat exchanger can be used for an air conditioner and a refrigerator, for example. It can also be used for automobile condensers, evaporators, radiators, heaters, intercoolers, oil coolers, and the like. Furthermore, it can also be used for a cooling device for cooling a heating element such as an IGBT (Insulated Gate Bipolar Transistor) provided in an inverter unit for controlling a drive motor of a hybrid vehicle or an electric vehicle.
  • IGBT Insulated Gate Bipolar Transistor
  • Example 1 This example is an example in which a plurality of precoated fin materials according to examples and comparative examples of the present invention are manufactured and their performance is compared.
  • a plurality of pre-coated fin materials (sample E1-1 to sample E7-5, sample C1-1 to sample) having different compositions of aluminum alloy plates and coating compositions are used. C7-5) is prepared.
  • the core part for heat exchangers is produced, and hydrophilicity sustainability and bondability are compared and evaluated.
  • a test mini-core is manufactured as the core portion.
  • the pre-coated fin material 1 has an aluminum alloy plate 11 and a coating film 12 formed on the surface thereof.
  • the aluminum alloy plate 11 contains additional components (elements) shown in the table below, and the balance has chemical components composed of Al and inevitable impurities.
  • the coating film 12 contains Si derived from lithium silicate at a content shown in the table below, and further contains a water-soluble acrylic resin in such an amount that the coating property can be improved.
  • the coating film further contains a flux in an amount shown in a table described later.
  • the coating film is formed on both surfaces of the aluminum alloy plate.
  • the mini-core 2 has a fin 3 made of the pre-coated fin material 1 and an aluminum tube 4, and the corrugated fin 3 is sandwiched between the aluminum tubes 4.
  • one of the two aluminum tubes 4 sandwiching the fin 3 is indicated by a broken line in order to clearly show the corrugated shape of the fin 2.
  • the fin 3 is made of a pre-coated fin material 1 formed in a corrugated shape, and includes an aluminum alloy plate 11 and a coating film 12 formed on both surfaces thereof.
  • the aluminum tube 4 is a flat multi-hole tube made of an aluminum alloy.
  • the aluminum tube 4 has a large number of refrigerant flow paths 411 for circulating the refrigerant.
  • the mini-core 2 as shown in FIG. 5B, the fin 3 and the aluminum tube 4 are joined, and a fillet 200 is formed at the joint between both.
  • an aluminum alloy plate 11 containing additive components shown in each table was prepared. Components other than the additive components shown in each table, that is, the balance is Al and inevitable impurities.
  • a base treatment layer made of a chemical conversion film was formed on both surfaces of the aluminum alloy plate 11 by performing a base treatment. As the base treatment, phosphoric acid chromate treatment was performed. The thickness of the base treatment layer is, for example, about 1 ⁇ m.
  • a predetermined amount of water glass, a water-soluble acrylic resin, and a coating containing KAlF 4 which is a fluoride flux added as needed is applied on the base treatment layer, and the temperature is 200 ° C.
  • the coating film 12 was formed by drying with (refer FIG. 1). In this way, precoated fin material 1 having coating film 12 containing Si derived from water glass with the contents shown in Tables 1 to 7 on aluminum alloy plate 11 was produced. The coating film 12 was formed on both surfaces of the aluminum alloy plate 11.
  • the amount of Si in the coating film 12 was measured by fluorescent X-ray analysis.
  • the fluorescent X-ray analysis was performed using a ZSX Primus II manufactured by Rigaku under the conditions of atmosphere: vacuum, tube: Rh, output: 50 kV-60 mA.
  • Quantification of Si in the coating film was performed by a calibration curve method using a standard Si sample.
  • the pre-coated fin material 1 was processed into a corrugated shape.
  • a corrugated fin 3 having a coating film 12 formed on the surface of the aluminum alloy plate 11 was obtained (see FIGS. 2 to 4). These fins 3 are respectively used for manufacturing the mini-core 1.
  • a flat multi-hole tube made of 3000 series aluminum alloy was produced by extrusion (see FIGS. 2 and 3).
  • a corrugated fin 3 was sandwiched between two aluminum tubes 4 to produce an assembly (see FIGS. 2 and 3).
  • each vertex 30 of the corrugated fin 3 and the aluminum tube 4 were brought into contact with each other.
  • the assembly was held in a furnace at a temperature of 600 ° C. in a nitrogen gas atmosphere for 3 minutes, and then cooled to room temperature (25 ° C.).
  • a liquid phase is generated from the inside of the aluminum alloy plate 11 of the fin 3 during heating in the furnace and oozes out to the surface, and the liquid phase solidifies during cooling.
  • a fillet 200 is formed between the fin 3 and the aluminum tube 4 as illustrated in FIG. In this way, as illustrated in FIGS. 2 and 3, the mini-core 2 in which the fin 3 and the aluminum tube 4 are joined is obtained.
  • the hydrophilic durability was evaluated using the precoated fin material of each sample.
  • Each sample is heated under the assumption of fin bonding performed after the formation of the coating film.
  • the pre-coated fin material was heated for 3 minutes in a furnace having a temperature of 600 ° C. in a nitrogen gas atmosphere.
  • the pre-coated fin material was immersed in pure water for 2 minutes and then air-dried for 6 minutes. This cycle of immersion in pure water and air drying was repeated 300 times.
  • the contact angle of the water droplet on the coating film of each test plate was measured. The contact angle was measured using a FACE automatic contact angle meter “CA-Z” manufactured by Kyowa Interface Chemical Co., Ltd.
  • a water drop was dropped on the coating film at room temperature, and the contact angle of the water drop after 30 seconds was measured.
  • the contact angle is less than 10 °, it is evaluated as “A”, when it is 10 ° or more and less than 20 °, it is evaluated as “B”, and when it is 20 ° or more and less than 30 °, it is evaluated as “C”.
  • the case of 30 ° or more was evaluated as “D”.
  • ⁇ Deformation rate> The fin height of the mini-core before and after joining was measured and the deformation rate due to fin buckling was also evaluated. That is, the case where the ratio of the fin height change before and after joining to the fin height before joining is 5% or less is evaluated as “A”, and the case where it exceeds 5% and is 10% or less is evaluated as “B”. The case where it exceeded 10% and 15% or less was evaluated as “C”, and the case where it exceeded 15% was evaluated as “D”.
  • Sample E1-1 to Sample E1-4 are superior in hydrophilic sustainability and have a higher bonding rate than Samples C1-1 to C1-4. Therefore, in the pre-coated fin material 1 having the aluminum alloy plate 11 and the coating film 12, the aluminum alloy plate 11 contains 1 to 5% by mass of Si and the balance has chemical components composed of Al and inevitable impurities. Is preferred.
  • the Si content in the coating film 12 is preferably 10 to 300 mg / m 2 .
  • the coating film can contain fluoride flux, and the content of fluoride flux By adjusting the pH to 40 to 5000 mg / m 2 , the hydrophilic sustainability can be further improved.
  • Samples E2-1 to E2-4 which further contain Fe and Mn in the aluminum alloy plate, had a small deformation rate and better strength as a fin material.
  • the aluminum alloy plate contains 1 to 5% by mass of Si, and Fe: 0.1 to 2% by mass and It is preferable that Mn is contained in an amount of 0.1 to 2% by mass, and the balance has a chemical component consisting of Al and inevitable impurities.
  • the aluminum alloy plate contains 1 to 5% by mass of Si, Fe: 0.1 to 2% by mass, and Mn: 0.1 to 2% by mass. %, Further containing Zn: 0.05 to 6% by mass, with the balance having a chemical component consisting of Al and inevitable impurities.
  • the aluminum alloy plate contains 1 to 5% by mass of Si, and Fe: 0.1 to 2% by mass.
  • the balance has a chemical component composed of Al and inevitable impurities.
  • the corrosion resistance of Sample E5-1 and Sample E5-2 which further contained at least one of In and Sn in the aluminum alloy plate, was further improved.
  • the aluminum alloy plate contains 1 to 5% by mass of Si, Fe: 0.1 to 2% by mass, and Mn : 0.1 to 2% by mass, Zn: 0.05 to 6% by mass, and further containing at least one of In: 0.3% by mass or less and Sn: 0.3% by mass or less, It is preferable that the balance has a chemical component composed of Al and inevitable impurities.
  • Samples E6-1 to E6-5 which contain at least one selected from the group consisting of Ti, V, Zr, Cr, and Ni in the aluminum alloy plate, have a small deformation rate. , The strength was more improved.
  • the aluminum alloy plate contains 1 to 5% by mass of Si, Fe: 0.1 to 2% by mass and Mn : 0.1 to 2% by mass, Zn: 0.05 to 6% by mass, Ti: 0.3% by mass or less, V: 0.3% by mass or less, Zr: 0.3% by mass % Or less, Cr: 0.3% by mass or less, and Ni: 2% by mass or less are preferably contained, and the balance has a chemical component composed of Al and inevitable impurities.
  • samples E7-1 to E7-5 which contain at least one selected from the group consisting of Be, Sr, Bi, Na, and Ca in the aluminum alloy plate, have a low deformation rate.
  • the bondability was further improved.
  • the aluminum alloy plate contains 1 to 5% by mass of Si, Fe: 0.1 to 2% by mass, and Mn: 0.1%.
  • Zn 0.05% by mass to 6% by mass
  • Be 0.1% by mass or less
  • Sr 0.1% by mass or less
  • Bi 0.1% by mass or less
  • Na Containing at least one selected from 0.1% by mass or less
  • Ca 0.05% by mass or less, with the balance having a chemical component consisting of Al and inevitable impurities.
  • the heat exchanger 5 has a core portion 2 having a number of configurations similar to those of the mini-core of the first embodiment.
  • the core portion 2 is formed by alternately laminating a large number of fins 3 made of a corrugated pre-coated fin material 1 and aluminum tubes 4, and the fins 3 and the aluminum tubes 4 are the mini-cores of the first embodiment. They are joined in the same way.
  • the header 51 is assembled
  • a tank 53 is assembled to the header 51.
  • These header 51, side plate 52, and tank 53 can be joined by brazing, for example.
  • the precoat fin material 1 similar to the samples E1-1 to E7-5 shown in Tables 1 to 7 can be used. That is, the heat exchanger 5 has the core part 2 which consists of the fin 3 which consists of the precoat fin material 1 excellent in the above-mentioned hydrophilic sustainability, joining property, etc., and the aluminum tube 4 joined to the fin 3. Therefore, since the fin 3 exhibits excellent hydrophilic durability, the heat exchanger 5 can suppress an increase in ventilation resistance and can stably exhibit good heat exchange performance for a long period of time. Further, in the heat exchanger 5, for example, the aluminum tube 4 and the fin 3 are sufficiently joined, so that the heat exchange performance between the aluminum tube 4 and the fin 3 is improved.
  • Example 3 This example is an example of a heat exchanger having a configuration in which an aluminum tube made of a flat multi-hole tube is inserted into an assembly hole formed in a fin.
  • the heat exchanger 6 includes an aluminum tube 7 and fins 8.
  • the fin 8 has an assembly hole 81 into which the aluminum tube 7 is inserted.
  • the aluminum tube 7 is in contact with the fin 8 at the contact portion 61.
  • a fillet 600 is formed between the aluminum tube 7 and the fin 8 to join both.
  • the heat exchanger 6 of this example includes a large number of fins 8 arranged at intervals in the plate thickness direction, and a plurality of aluminum tubes 7 extending in the plate thickness direction of the fins 8. And have.
  • the fin 8 has a substantially rectangular shape in plan view as viewed from the thickness direction.
  • the fin 8 consists of the precoat fin material 1 which has the aluminum plate 11 similar to Example 1, and the coating film 12 formed in the both surfaces.
  • the assembly hole 81 in the fin 8 is a notch 811 provided in the outer peripheral edge portion of the fin 8.
  • the notch 811 extends in the plate width direction from the outer peripheral edge of the fin 8 and has a U shape in plan view.
  • the notch 811 is configured such that the aluminum tube 7 can be press-fitted from an open portion 812 provided at the outer peripheral edge of the fin 8.
  • the fin 8 has a collar portion 82 protruding from the peripheral edge of the assembly hole 81.
  • the height of the color part 82 is not specifically limited, For example, it can be 200 micrometers or more.
  • the aluminum tube 7 is a flat multi-hole tube in which a cross section in the longitudinal direction has an oval shape and a plurality of flow paths 711 are formed therein.
  • the flat multi-hole tube is arranged so that the width direction thereof is parallel to the plate width direction of the fin plate.
  • the aluminum tube 7 made of a flat multi-hole tube has a collar portion 82 at one end 712 in the width direction, that is, a portion where the surface is curved. Abut.
  • One end portion 712 of the aluminum tube 7 and the tip portion 821 of the U-shape of the collar portion 82 constitute a contact portion 61.
  • a fillet 600 is formed in the contact portion 61.
  • the fillet 600 is formed by the liquid phase exuding from the inside of the aluminum alloy plate 1 of the fin 8 to the surface of the fin 8 and solidifying by heating at the time of joining described later.
  • the heat exchanger 6 of this example can be manufactured as follows, for example. First, the precoat fin material 1 is produced in the same manner as in Example 1, and the fin 8 is produced by a conventional method using this fin material. Then, the plurality of fins 8 are arranged at intervals in the plate thickness direction. Next, an aluminum tube 7 made of a flat multi-hole tube prepared by a conventional method is press-fitted into the assembly hole 81 of the fin 8, and at least one end 712 of the aluminum tube 7 and the tip 821 of the collar portion 82 are brought into contact with each other. Make contact. Thereafter, for example, the substrate is heated at 600 ° C. for 3 minutes in a nitrogen gas atmosphere and then cooled.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Geometry (AREA)
  • Laminated Bodies (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

L'invention concerne un matériau d'ailette pré-revêtu permettant la fabrication d'un échangeur de chaleur, l'échangeur de chaleur présentant une stabilité hydrophile supérieure des ailettes, des propriétés supérieures de liaison, et rendant possible la liaison entre les ailettes et le tubage en aluminium sans fournir séparément un matériau de brasage ; et un échangeur de chaleur utilisant le matériau d'ailette pré-revêtu. Le matériau d'ailette pré-revêtu (1) comprend une feuille en alliage d'aluminium (11) et un film de revêtement (12) formé sur la surface de la feuille en alliage d'aluminium (11), et l'échangeur de chaleur utilise le matériau d'ailette pré-revêtu (1). La feuille en alliage d'aluminium (11) comprend des composants chimiques contenant de 1 à 5 % en masse de Si, le reste comprenant de l'Al et des impuretés inévitables. La teneur en Si dans le film de revêtement (12) est de 10 à 300 mg/m2.
PCT/JP2017/032783 2016-09-12 2017-09-12 Matériau d'ailette pré-revêtu et échangeur de chaleur utilisant ledit matériau d'ailette pré-revêtu WO2018047971A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2016-177997 2016-09-12
JP2016177997A JP2018044694A (ja) 2016-09-12 2016-09-12 プレコートフィン材及びこれを用いた熱交換器

Publications (1)

Publication Number Publication Date
WO2018047971A1 true WO2018047971A1 (fr) 2018-03-15

Family

ID=61562478

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2017/032783 WO2018047971A1 (fr) 2016-09-12 2017-09-12 Matériau d'ailette pré-revêtu et échangeur de chaleur utilisant ledit matériau d'ailette pré-revêtu

Country Status (2)

Country Link
JP (1) JP2018044694A (fr)
WO (1) WO2018047971A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210116189A1 (en) * 2019-08-01 2021-04-22 Hangzhou Sanhua Research Institute Co., Ltd. Heat exchanger, method for making heat exchanger, and heat exchange system
WO2023243630A1 (fr) * 2022-06-17 2023-12-21 株式会社Uacj Matériau d'alliage d'aluminium monocouche pour brasage, son procédé de production, structure d'aluminium et échangeur de chaleur

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7376700B2 (ja) * 2020-04-22 2023-11-08 Ｍａアルミニウム株式会社 親水性塗料組成物、アルミニウム部材、アルミニウム板材、アルミニウムチューブ、および熱交換器

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01159343A (ja) * 1987-12-16 1989-06-22 Mitsubishi Alum Co Ltd ろう付け性と耐食性にすぐれた熱交換器用Ａｌ合金複合フィン材
JPH06145861A (ja) * 1992-10-30 1994-05-27 Mitsubishi Alum Co Ltd 高強度フィン材で構成されたＡｌ合金製熱交換器
JPH07102337A (ja) * 1993-09-30 1995-04-18 Furukawa Electric Co Ltd:The ブレージング用アルミニウム合金フィン材およびアルミニウム合金製熱交換器の製造方法
JP2009162450A (ja) * 2008-01-09 2009-07-23 Sumitomo Light Metal Ind Ltd アルミニウム製熱交換器及びその製造方法
JP2012112000A (ja) * 2010-11-25 2012-06-14 Mitsubishi Alum Co Ltd 熱交換器用偏平管および熱交換器
JP2012126950A (ja) * 2010-12-14 2012-07-05 Mitsubishi Alum Co Ltd 熱交換器用アルミニウム合金フィン材および該フィン材を用いた熱交換器
JP2012224923A (ja) * 2011-04-21 2012-11-15 Mitsubishi Alum Co Ltd 熱交換器用プレートフィン材およびその製造方法ならびに該プレートフィン材を用いた熱交換器およびその製造方法
JP2013137153A (ja) * 2011-12-28 2013-07-11 Mitsubishi Alum Co Ltd プレコートフィン材を使用したオールアルミニウム熱交換器
WO2014196183A1 (fr) * 2013-06-02 2014-12-11 株式会社Uacj Échangeur thermique et matériau d'ailette pour ledit échangeur thermique
WO2015182318A1 (fr) * 2014-05-26 2015-12-03 株式会社Uacj Tube d'échangeur de chaleur, échangeur de chaleur et pâte de brasage
JP2016164479A (ja) * 2015-03-06 2016-09-08 株式会社Uacj プレコートフィン及びこれを用いた熱交換器

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01159343A (ja) * 1987-12-16 1989-06-22 Mitsubishi Alum Co Ltd ろう付け性と耐食性にすぐれた熱交換器用Ａｌ合金複合フィン材
JPH06145861A (ja) * 1992-10-30 1994-05-27 Mitsubishi Alum Co Ltd 高強度フィン材で構成されたＡｌ合金製熱交換器
JPH07102337A (ja) * 1993-09-30 1995-04-18 Furukawa Electric Co Ltd:The ブレージング用アルミニウム合金フィン材およびアルミニウム合金製熱交換器の製造方法
JP2009162450A (ja) * 2008-01-09 2009-07-23 Sumitomo Light Metal Ind Ltd アルミニウム製熱交換器及びその製造方法
JP2012112000A (ja) * 2010-11-25 2012-06-14 Mitsubishi Alum Co Ltd 熱交換器用偏平管および熱交換器
JP2012126950A (ja) * 2010-12-14 2012-07-05 Mitsubishi Alum Co Ltd 熱交換器用アルミニウム合金フィン材および該フィン材を用いた熱交換器
JP2012224923A (ja) * 2011-04-21 2012-11-15 Mitsubishi Alum Co Ltd 熱交換器用プレートフィン材およびその製造方法ならびに該プレートフィン材を用いた熱交換器およびその製造方法
JP2013137153A (ja) * 2011-12-28 2013-07-11 Mitsubishi Alum Co Ltd プレコートフィン材を使用したオールアルミニウム熱交換器
WO2014196183A1 (fr) * 2013-06-02 2014-12-11 株式会社Uacj Échangeur thermique et matériau d'ailette pour ledit échangeur thermique
WO2015182318A1 (fr) * 2014-05-26 2015-12-03 株式会社Uacj Tube d'échangeur de chaleur, échangeur de chaleur et pâte de brasage
JP2016164479A (ja) * 2015-03-06 2016-09-08 株式会社Uacj プレコートフィン及びこれを用いた熱交換器

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210116189A1 (en) * 2019-08-01 2021-04-22 Hangzhou Sanhua Research Institute Co., Ltd. Heat exchanger, method for making heat exchanger, and heat exchange system
EP3982077A4 (fr) * 2019-08-01 2022-07-27 Hangzhou Sanhua Research Institute Co., Ltd. Échangeur de chaleur et son procédé de fabrication, et système d'échange de chaleur
US11988464B2 (en) 2019-08-01 2024-05-21 Zhejiang Sanhua Intelligent Controls Co., Ltd. Heat exchanger, method for making heat exchanger, and heat exchange system
WO2023243630A1 (fr) * 2022-06-17 2023-12-21 株式会社Uacj Matériau d'alliage d'aluminium monocouche pour brasage, son procédé de production, structure d'aluminium et échangeur de chaleur

Also Published As

Publication number Publication date
JP2018044694A (ja) 2018-03-22

Similar Documents

Publication Publication Date Title
KR101581609B1 (ko) 열교환기 핀용의 알루미늄 합금재 및 그 제조방법과 상기 알루미늄 합금재를 이용한 열교환기
US20110240280A1 (en) Aluminum alloy brazing sheet and heat exchanger
EP3029169B1 (fr) Élément de gaine en alliage d'aluminium et son procédé de production
JP5188115B2 (ja) 高強度アルミニウム合金ブレージングシート
JP4822277B2 (ja) ろう付性と耐食性に優れた熱交換器管用アルミニウム合金ブレージングシートおよび耐食性に優れた熱交換器管
WO2014065355A1 (fr) Brasage d'alliage d'aluminium destiné à une ailette, échangeur thermique, et procédé de fabrication d'un échangeur thermique
JP6372950B2 (ja) アルミニウム合金クラッド材及びその製造方法
JP2004084060A (ja) 熱交換器用アルミニウム合金フィン材および該フィン材を組付けてなる熱交換器
JP6315365B2 (ja) 熱交換器用ブレージングシート及びその製造方法
JP5188116B2 (ja) 高強度アルミニウム合金ブレージングシートおよびその製造方法
WO2017141921A1 (fr) Feuille de brasage en alliage d'aluminium, son procédé de fabrication et procédé de fabrication d'un échangeur de chaleur pour véhicule utilisant ladite feuille de brasage
JP5279278B2 (ja) 熱交換器のチューブ材用ブレージングシート及びそれを用いる熱交換器の製造方法
EP3121301A1 (fr) Matériau d'alliage d'aluminium enrobé et son procédé de production, et échangeur de chaleur utilisant ledit matériau en alliage d'aluminium enrobé et son procédé de production
WO2014157116A1 (fr) Structure brasée
JP5192890B2 (ja) 耐食性に優れた熱交換器用押出扁平多穴管および熱交換器
WO2018047971A1 (fr) Matériau d'ailette pré-revêtu et échangeur de chaleur utilisant ledit matériau d'ailette pré-revêtu
JP5279277B2 (ja) 熱交換器のチューブ材用ブレージングシート並びに熱交換器及びその製造方法
JP2017066494A (ja) 熱交換器用アルミニウム合金材及びその製造方法
US9999946B2 (en) High corrosion-resistant aluminum alloy brazing sheet, method of manufacturing such sheet, and corrosive-resistant heat exchanger using such sheet
JP2012057183A (ja) アルミニウム合金製クラッド材およびそれを用いた熱交換器
JP2017020108A (ja) アルミニウム合金クラッド材及びその製造方法、ならびに、当該アルミニウム合金クラッド材を用いた熱交換器
JP6233916B2 (ja) アルミニウム合金ろう材およびアルミニウム合金複合材
WO2018047970A1 (fr) Matériau pour ailette préalablement revêtue et échangeur de chaleur l'utilisant
JP5279279B2 (ja) 熱交換器のフィン材用ブレージングシート並びに熱交換器及びその製造方法
JP4485671B2 (ja) 熱交換器用防食アルミニウム合金ろう材および熱交換器用高耐食性アルミニウム合金複合材

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 17848909

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 17848909

Country of ref document: EP

Kind code of ref document: A1