CN102378893A - Aluminum fin material for heat exchanger - Google Patents
Aluminum fin material for heat exchanger Download PDFInfo
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- CN102378893A CN102378893A CN2010800112774A CN201080011277A CN102378893A CN 102378893 A CN102378893 A CN 102378893A CN 2010800112774 A CN2010800112774 A CN 2010800112774A CN 201080011277 A CN201080011277 A CN 201080011277A CN 102378893 A CN102378893 A CN 102378893A
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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
- F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
- F28F13/18—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by applying coatings, e.g. radiation-absorbing, radiation-reflecting; by surface treatment, e.g. polishing
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Abstract
An aluminum fin material (1) for a heat exchanger, which is characterized by comprising a base (2), a primer treatment layer (3), a hydrophilic layer (4) formed on the primer treatment layer (3), inorganic oxide microparticles (5) adhered on the hydrophilic layer (4), and a resin lubrication layer (6), wherein the hydrophilic layer (4) comprises a silicate compound that is represented by formula: aM2ObSiO2 [wherein M = Li, Na or K; b/a = 2] and contained in the hydrophilic layer (4) at a content higher than 50% by mass and at least one resin selected from polyacrylic acid, polyacrylamide, a styrene-maleic acid copolymer and salts of these compounds, the hydrophilic layer has a thickness of 0.05 to 2 [mu]m, the inorganic oxide microparticles (5) have an average particle diameter of 0.001 to 0.3 [mu]m, and the total amount of the inorganic oxide microparticles (5) adhered is 1 to 200 mg/m2.
Description
Technical field
The present invention relates to aluminum fin material for heat exchanger.
Background technology
As the raising countermeasure of the rate of heat exchange (heat exchanger effectiveness) of heat exchanger, what carry out is to give aluminum fin material for heat exchanger (fin) with hydrophily.This be because, when condensation running (running under the state of steam liquefaction (becoming water)), fin surface adheres to water droplet and between fin, forms bridge; Environment for use also can cause the formation of frost in addition; Thereby between fin, stop up, the ventilation resistance value rises, and heat exchanger effectiveness reduces.For with its elimination, give hydrophily to fin surface, make condensed water as under the water film flow, suppress the formation of water droplet and frost.
Therefore; Method as the hydrophily raising that makes (heat exchanger is used) aluminum fin material; That extensively carries out has a following method: after the aluminum fin material surface is provided with various substrate processing layers; Through coating, cure, forming with silicic acid such as waterglass and silica gel or silicate is that the inorganic of center is hydrophily epithelium (with reference to patent documentation 1～3).
The look-ahead technique document
Patent documentation
Patent documentation 1: special fair 3-77440 communique (～the 3 page of left hurdle of 39 row, the 2nd page of left hurdle 33 row)
Patent documentation 2: No. 3191307 communique of patent (paragraph 0009～0015)
Patent documentation 3: Te Kaipingdi 9-14888 communique (paragraph 0010～0025)
But, in the method (aluminum fin material for heat exchanger) that patent documentation 1～3 is recorded and narrated,, cause aspect hydrophily (hydrophilic continuation), defrosting property insufficient because the roughening on fin (material) surface is insufficient.In addition, the off-premises station the during running of the air-conditioning heating installation in winter is used heat exchanger, and under the high environment of humidity, condensate freezes forms frost whole of heat exchanger, and the reduction of heat exchanger effectiveness takes place.Therefore,, stop heating installation and walk around, carry out defrost operation, so comfortableness be poor in order to remove this frost.In addition, melt, the situation of application of heat device is also arranged, but can cause cost to rise in order to make frost.Thus; Through the hydrophily of further raising fin, frost peels off (guaranteeing comfortableness as far as possible) (defrosting property) easily during defrost operation, in addition after defrosting; The moisture-holding capacity of the condensed water of fin surface tails off; Therefore carry out the heating installation running once again, during frosting, can make frosting difficulty (preventing property of frosting again) again.In addition, in fin (material), also need excellent processability and corrosion resistance.
Summary of the invention
Therefore, problem of the present invention is, a kind of processability, excellent corrosion resistance are provided, and hydrophily is excellent, and can make the aluminum fin material for heat exchanger of defrosting property (preventing property of the frosting again) raising of the heat exchanger of frosting.
Aluminum fin material for heat exchanger of the present invention has as follows: the substrate that is made up of aluminum or aluminum alloy; Be formed at the substrate processing layer on the said substrate; Be formed at the hydrophilic layer on the said substrate processing layer; Attached to the inorganic oxide particle on the said hydrophilic layer; Be formed at the resin system lubricating layer on the said hydrophilic layer that is attached with said inorganic oxide particle, wherein, said hydrophilic layer has by aM
2ObSiO
2(wherein; M=Li, Na, K, b/a>=2) expression, shared ratio surpasses the silicate compound of 50 quality % among said hydrophilic layer; With one or more the resin among polyacrylic acid, polyacrylamide, styrene maleic acid copolymer or its salt; The thickness of this hydrophilic layer is 0.05～2 μ m, and said inorganic oxide particle average grain diameter is 0.001～0.3 μ m, and total adhesion amount is 1～200mg/m
2, said resin system lubricating layer thickness is 0.05～1 μ m.
According to such formation, having the thickness that is formed on the substrate processing layer is the hydrophilic layer of 0.05～2 μ m, and this hydrophilic layer has by aM
2ObSiO
2(wherein; M=Li, Na, K; B/a>=2) expression; Surpass the silicate compound of 50 quality % and one or more the resin (constituting thus) among polyacrylic acid, polyacrylamide, styrene maleic acid copolymer or its salt at ratio shared among the said hydrophilic layer, can access excellent hydrophily and defrosting property (preventing property of frosting again) thus.In addition, also having attached to the average grain diameter on the hydrophilic layer is the inorganic oxide particle of 0.001～0.3 μ m, and its total adhesion amount is 1～200mg/m
2, thus, heat exchanger can access excellent hydrophily and defrosting property (preventing property of frosting again) with the roughening abundant (suitably) on aluminium fin (material) surface.In addition, also can access excellent processability.In addition, also have be formed on the hydrophilic layer that is attached with inorganic oxide particle, thickness is 0.05～1 μ m resin system lubricating layer, can access excellent processability thus.In addition, through having said hydrophilic layer and resin system lubricating layer, also can access excellent corrosion resistance.
In addition, said inorganic oxide particle preferably contains among Al, Ti, Zn, Si, Sn, the Cu at least a.
According to such formation, inorganic oxide particle contains at least a regulation element, can improve the hydrophily and defrosting property (preventing property of frosting again) of aluminum fin material for heat exchanger thus.
Preferred said substrate processing layer is at 1～100mg/m
2Scope contain Cr or Zr, the thickness of said substrate processing layer does
In addition, said resin system lubricating layer preferably is made up of polyethylene glycol or polyvinyl alcohol.
According to the present invention, a kind of aluminum fin material for heat exchanger can be provided, its processability, excellent corrosion resistance, and hydrophily is excellent, and the defrosting property (preventing property of frosting again) of the heat exchanger of frosting is improved.
Description of drawings
Fig. 1 is the section and the profile of medelling ground expression aluminum fin material for heat exchanger of the present invention.
The specific embodiment
Describe for an embodiment of the invention with reference to Fig. 1.
< fin material >
The aluminum fin material for heat exchanger of this embodiment, (fin material) 1, as shown in Figure 1, have as follows: substrate 2; Be formed at the substrate processing layer 3 on the substrate 2; Be formed at the hydrophilic layer 4 on the substrate processing layer 3; Attached to the inorganic oxide particle on the hydrophilic layer 45; Be formed at the resin system lubricating layer 6 on the hydrophilic layer 4 that is attached with inorganic oxide particle 5.At this, on the so-called substrate 2, the meaning is the one or both sides (not shown) of substrate 2.Below describe for each formation.
(substrate)
Substrate 2 is the sheet material that is made up of aluminum or aluminum alloy, from the aspect of heat conductivity and excellent in workability, is fit to the aluminium that 1000 of use JIS H4000 regulation is, more preferably uses the aluminium of alloy numbering 1050,1200.Also have, in the fin material 1 of heat exchanger, consider intensity, heat conductivity and processability etc., use be the substrate 2 about thickness of slab 0.08～0.3mm.
(substrate processing layer)
Substrate processing layer 3 is formed at (surface) on the substrate 2, is made up of inorganic oxide or organic and inorganic composite oxides.As inorganic oxide, preferably contain chromium (Cr) or zirconium (Zr) as main component, for example the chromium phosphate hydrochlorate is handled through carrying out, basic zirconium phosphate is handled, chromate is handled and formed.But in the present invention, if the layer of performance corrosion resistance then is not limited thereto, for example trbasic zinc phosphate is handled through carrying out, titanium phosphate is handled and also can be formed substrate processing layer 3.In addition,, have, can enumerate acrylic acid-zirconium complex etc. through carrying out that the application type chromate is handled or the application type zirconium is handled and formed as the organic-inorganic composite compound.
Preferred substrate processing layer 3 is at 1～100mg/m
2Scope contain Cr or Zr, in addition, the thickness as substrate processing layer 3 is preferably
Can certainly be according to changes that suits such as application targets.Through the formation of this substrate processing layer 3, substrate 2 with after the connecting airtight property raising of the hydrophilic layer 4 stated, and give fin material 1 with corrosion resistance.
(hydrophilic layer)
Hydrophilic layer 4 is formed at (surface) on the substrate processing layer 3 with the thickness of 0.05～2 μ m.In addition, hydrophilic layer 4 is by constituting as follows: by aM
2ObSiO
2(wherein, M=Li, Na, K, b/a>=2) expression, shared ratio surpasses the silicate compound of 50 quality % among hydrophilic layer; The resin of one or more among polyacrylic acid, polyacrylamide, styrene maleic acid copolymer or its salt (water soluble organic polymer material).Through the formation of this hydrophilic layer 4, fin material 1 is endowed hydrophily (hydrophilic continuation).Also have, constitute the mixture that silicate compound and resin constituted of hydrophilic layer 4, make through well-known method.
When the thickness of hydrophilic layer 4 is lower than 0.05 μ m (film); Can not get excellent hydrophily (hydrophilic continuation); Therefore also can not get defrosting property (preventing property of frosting again), in addition, surpassing under the situation of 2 μ m (thick film); Bad order (inhomogeneous) after the application then takes place easily, and processability (tool wear property) is poor.
The b/a of silicate compound is lower than at 2 o'clock; Silicate compound shared ratio (allotment of silicate compound and resin than) when being lower than 50 quality % in hydrophilic layer 4; For example, hydrophilic layer 4 can not become porous matter, and the hydrophilicity of hydrophilic layer 4 (hydrophily) is insufficient; Even the inorganic oxide particle of stating after using (adhering to) above that 5 also can not get excellent hydrophily (hydrophilic continuation) and defrosting property (preventing property of frosting again).
In addition; Constitute the kind (resin kind) of the resin of hydrophilic layer 4; Be by one or more resins that constitute among polyacrylic acid, polyacrylamide, styrene maleic acid copolymer or its salt; Thus, the mixture of the aforementioned silicic acid oxygen compound of this resin and regulation becomes porous matter, can give fin material 1 with hydrophily.
(inorganic oxide particle)
Inorganic oxide particle (particulate) 5 is attached to (surface) on the hydrophilic layer 4, and its total adhesion amount is 1～200mg/m
2In addition, the average grain diameter of inorganic oxide particle 5 is 0.001～0.3 μ m.At this, so-called average grain diameter is meant, inorganic oxide particle 5 is dispersed with under the state among the water solvent etc., the particle diameter of the integration volume of measuring with laser diffraction formula particle size distribution measurement appearance etc. 50%.In addition, (be Al when for example element (kind) is for Al as inorganic oxide particle 5
2O
3Deng), not special qualification the, but from the viewpoint of economy preferably contained at least a among Al, Ti, Zn, Si, Sn, the Cu.
Make hydrophilic layer 4 and after between the resin system lubricating layer 6 stated; Disperse inorganic oxide particle 5 (on hydrophilic layer 4); Can further form fine concavo-convex (not shown) on the surface of the roughening of hydrophilic layer 4; Consequently, the roughening on fin material 1 surface is (suitably) fully, and hydrophily is improved.In addition, because hydrophilic layer 4 is inorganic system (silicate compound is main), so can guarantee the connecting airtight property of inorganic oxide particle 5 and hydrophilic layer 4, the situation that the water that for example in moving the commentaries on classics, takes place causes inorganic oxide particle 5 to flow is few.Therefore, can continue the hydrophily (hydrophilic continuation) of excellence (height).
If the average grain diameter of inorganic oxide particle 5 surpasses 0.3 μ m (particle is big); Then do not reach abundant (suitably) (with the relation of water suitable) of roughening on the surface of fin material 1; Hydrophily (hydrophilic continuation) and defrosting property (preventing property of frosting again) can't improve, and also can not get excellent processability (tool wear property).In addition when being lower than 0.001 μ m; Because the average grain diameter of inorganic oxide particle 5 is too small; Can not well connect airtight with hydrophilic layer 4, hydrophily (hydrophilic continuation) and defrosting property (preventing property of frosting again) can't improve, and also can not get excellent processability (formability).Specifically, after the processing when the implementation evaluation hydrophily, inorganic oxide particle 5 peels off from hydrophilic layer 4.Also can peel off man-hour adding in addition, be deposited in the metal die, around mold tool.
The adhesion amount of inorganic oxide particle 5 is lower than 1mg/m
2The time (total adhesion amount few), the roughening insufficient (suitably) (effect of inorganic oxide particle 5 can't be brought into play) on fin material 1 surface, hydrophily (hydrophilic continuation) does not have raising with defrosting property (preventing property of frosting again).In addition, if surpass 200mg/m
2Though then hydrophily (hydrophilic continuation) and defrosting property (preventing property of frosting again) improve, and can not get excellent processability (tool wear property).
In order to make inorganic oxide particle 5 attached on the hydrophilic layer 4; For example can carry out through following mode: the dispersion liquid (water and inorganic oxide particle 5) that will be dispersed with inorganic oxide particle 5 with roll coater (roll coater) is coated on the hydrophilic layer 4, with oven-baked.Also have, in order to reach the scope of said total adhesion amount, the coating weight when being coated with through the content of inorganic oxide particle contained in the dispersion liquid 5 with roll coater suits to adjust.In addition, about average grain diameter, be the adjustment that when pulverizing inorganic oxide particle 5, suits.
(resin system lubricating layer)
Resin system lubricating layer (lubricating layer) 6 with the thickness of 0.05～1 μ m, is formed on the hydrophilic layer 4 that is attached with inorganic oxide particle 5 (surface).In addition, resin system lubricating layer (water-soluble resin lubricating layer) 6 is made up of the hydrophilic resin that does not destroy hydrophilic layer 4, for example polyethylene glycol, polyvinyl alcohol.This resin system lubricating layer 6 is attached at the condensed water on the surface of the aluminium fin of the processing of fin material 1 having been carried out be shaped and washes (water-soluble resin) off when heat exchanger turns round.Through forming this resin system lubricating layer 6, can not damage the hydrophily (function) of fin material 1 (hydrophilic layer 4), and processability (formability) is improved.In addition, hydrophilic layer 4 is inorganic system (silicate compound is main), therefore when being shaped processing fin material 1 (making the aluminium fin), though can adhere with metal die, can suppress its adherence.
When the thickness of resin system lubricating layer 6 was lower than 0.05 μ m, when making the aluminium fin, (can not suppress adherence) took place in adhesion problems; Can not get excellent processability (tool wear property), in addition, when surpassing 1 μ m; Because the moisture sorption effect of resin system lubricating layer 6 self; Cause the surface of fin material 1 to become adhesion matter, resin system lubricating layer 6 is involved in instrument (blocking) adding man-hour (during drawing), can not successfully process (breaking down easily).
As above, through on the hydrophilic layer 4 of regulation (surface), with total adhesion amount 1～200mg/m
2Adhering to average grain diameter is the inorganic oxide particle 5 of 0.001～0.3 μ m, and the roughening on aluminum fin material for heat exchanger 1 surface is (suitably) fully, can access excellent hydrophily and defrosting property (preventing property of frosting again).
Next, the example for the manufacturing approach of aluminum fin material for heat exchanger (fin material) 1 describes.
< manufacturing approach of fin material >
(1) on the substrate that is made up of aluminum or aluminum alloy 2 (surface) implemented the processing of chromium phosphate hydrochlorate, basic zirconium phosphate processing etc., thereby formed the substrate processing layer 3 that is made up of inorganic oxide or organic-inorganic composite compound.This chromium phosphate hydrochlorate processing, basic zirconium phosphate processing etc. are carried out through on substrate 2, utilizing coating chemical synthesis treatment liquids such as injection.As its coating weight, preferably convert, at 1～100mg/m with Cr or Zr
2Scope coating, as formed thickness, be preferably
In addition, before forming substrate processing layer 3, preferably to the jet surface alkaline aqueous solution of substrate 2 etc., to the surface degreasing in advance of substrate 2.Through degreasing, the connecting airtight property raising of substrate 2 and substrate processing layer 3.
(2) on formed substrate processing layer 3 (surface), be coated with the resin solution of the mixture that constitutes by silicate compound of stipulating and resin, cure afterwards, on substrate processing layer 3, form hydrophilic layer 4.This coating is carried out with scraping strip coating machine (bar coater), roll coater always known coating processes such as (roll coater), and coating weight suits to set (adjustment) so that the thickness of hydrophilic layer 4 is 0.05～2 μ m.Stoving temperature (the arrival temperature of aluminium sheet) suits to set according to the resin solution of coating.
(3) on formed hydrophilic layer 4 (surface), the dispersion liquid that coating is dispersed with the inorganic oxide particle 5 of regulation cures afterwards, makes and adheres to inorganic oxide particle 5 on the hydrophilic layer 4.This coating is carried out with always known coating processes such as scraping strip coating machine, roll coaters, and coating weight is so that total adhesion amount of inorganic oxide particle 5 is 1～200mg/m
2And suitable setting (adjustment).Stoving temperature (the arrival temperature of aluminium sheet) suits to set according to the dispersion liquid of coating.
(4) on the hydrophilic layer that is attached with inorganic oxide particle 54 (on the face); Coating can not destroy resin (water) solution of hydrophilic resin (water-soluble resin); Cure afterwards, on the hydrophilic layer that is attached with inorganic oxide particle 54, form resin system lubricating layer 6.This coating is carried out with always known coating processes such as scraping strip coating machine, roll coaters, and coating weight suits to set (adjustment) so that the thickness of resin system lubricating layer 6 is 0.05～1 μ m.Stoving temperature (the arrival temperature of aluminium sheet) suits to set according to the resin solution of coating.
Embodiment
Further show embodiment and comparative example on one side, Yi Bian this explanation is described particularly.
Make the fin material according to following method.As substrate 2, all use the aluminium sheet of the thickness of slab 0.1mm that the aluminium by the alloy of JIS H4000 defined numbering 1200 constitutes.
To the surface of this aluminium sheet, the chromium phosphate hydrochlorate that is used to form substrate processing layer 3 is handled.As chemical synthesis treatment liquid, use Japanese ペ イ Application ト Co., Ltd. (NIPPON PAINT Co., Ltd) system ア Le サ one Off (ALSURF, registration mark) 401/45, phosphoric acid, chromic acid.The thickness of substrate processing layer 3 at this moment does
(the Cr scaled value of x-ray fluorescence method mensuration is 20mg/m
2).
On this substrate processing layer 3; Coating is by the silicate compound of the kind shown in the table 1 (b/a, M, the ratio of silicate compound) and the resin solution that is used to form hydrophilic layer 4 (coating) of resin (kind) formation; Enforcement is cured, and forms the hydrophilic layer 4 of the thickness shown in the table 1.
On this hydrophilic layer 4, the dispersion liquid that the kind (element) of coating shown in the table 1 and being used to adhered to the inorganic oxide particle 5 of average grain diameter is implemented to cure, and the inorganic oxide particle 5 that makes the total adhesion amount shown in the table 1 is attached on the hydrophilic layer 4.
On the hydrophilic layer that is attached with this inorganic oxide particle 54, the resin aqueous solution of pva coating is implemented to cure, and forms (resin system) lubricating layer 6 of the thickness shown in the table 1.
Show the thickness of hydrophilic layer 4, inorganic oxide particle 5 and (resin system) lubricating layer 6 etc. in the table 1.Also have the underscore in the table 1, the important document of unabridged version invention regulation with thumb down.
[table 1]
For the fin material of making 1 (supplying examination material, test portion),, estimate hydrophily, defrosting property (preventing property of frosting again), processability and corrosion resistance through following method.
< hydrophily >
Hydrophily (hydrophilic continuation) is estimated through following mode: heat 16 hours as 1 circulation with dipping 8 hours in ion exchange water with 80 ℃; After 5 circulations of fin material 1 this processing of enforcement, the pure water folding contact angle when dripping pure water with angular instrument (gonio meter) measurement.The contact angle of measuring is qualified (zero) in time below 20 °, and contact angle is defective (*) when surpassing 20 °.This hydrophilic evaluation result is presented in the table 2.
< defrosting property, preventing property of frosting again >
Make the real machine that each supplies examination material (test portion), after the frosting running, implement defrosting, frosting is moving again changes, the removing property of visual frost and frosting situation again and estimate.Comparative example 1 not use inorganic oxide particle is a benchmark; Fast in the defrosting running up to the time of removing frost; Again frosting moving change up to the time that frost adheres to comprehensively slow be qualified (zero); Identical or slow in defrosting running up to the time of removing frost, again frosting moving change up to the time that frost adheres to comprehensively identical or slow be defective (*).The evaluation result of this defrosting property (preventing property of frosting again) is presented in the table 2.
< processability >
The processability evaluation is with the punching press of real machine fin (processing of drawless dieless drawing), when implementing continuously to impact for 100,000 times (during punching press), and the tool wear situation ((tool wear property) in visual assessment aperture formability and the stamped metal mould.Aperture after the shaping does not have big crackle, the yet not significant abrasion of instrument front end, is qualified (zero) when damaged, and the aperture after the shaping has big crackle continuously, and the instrument front end is defective (*) when significant abrasion and damaged (affirmation) are arranged.The evaluation result of this processability (formability, tool wear property) is presented in the table 2.
< corrosion resistance >
Corrosion resistance is according to JIS Z 2371, and the pairing grading of corroded area rate (rating number) when implementing 200 hours salt spraytests is estimated.Being rated 9.5 is qualified (zero) when above, and it is defective (*) that grading is lower than at 9.5 o'clock.The evaluation result of this corrosion resistance is presented in the table 2.
[table 2]
Can know that by table 2 test portion of table 2 (embodiment) 1～16 satisfies important document of the present invention, so hydrophily (hydrophilic continuation), defrosting property (preventing property of frosting again), processability and corrosion resistance all good (qualified).
On the other hand; The comparative example 1 of table 2; Because total adhesion amount of inorganic oxide particle 5 is lower than lower limit (inorganic oxide particle 5 does not adhere to); So the roughening insufficient (suitably) on fin material 1 surface (effect of inorganic oxide particle 5 can not get performance), hydrophily (hydrophilic continuation) and defrosting property (preventing property of frosting again) do not improve.In addition, comparative example 9 is because total adhesion amount of inorganic oxide particle 5 surpasses higher limit, so though hydrophily (hydrophilic continuation) and defrosting property (preventing property of frosting again) improve, can not get excellent processability (tool wear property).
Comparative example 2 is because the thickness of hydrophilic layer 4 is lower than lower limit, so can not get also can not get excellent defrosting property (preventing property of frosting again) by the hydrophily (hydrophilic continuation) with excellence that hydrophilic layer 4 brings.In addition, comparative example 3 is because the thickness of hydrophilic layer 4 surpasses higher limit, so though hydrophily (hydrophilic continuation) and defrosting property (preventing property of frosting again).Improve, but the bad order (inhomogeneous) after the application takes place easily, processability (tool wear property) is poor.
Comparative example 4 is lower than lower limit because constitute the ratio of the silicate compound of hydrophilic layer 4; Comparative example 5 is lower than lower limit because constitute the b/a of the silicate compound of hydrophilic layer 4; So hydrophilic layer 4 (mixture that is made up of silicate compound and resin) can't become porous matter; The hydrophilicity of hydrophilic layer 4 (hydrophily) is insufficient, even use inorganic oxide particle 5 on it, also can not get excellent hydrophily (hydrophilic continuation) and defrosting property (preventing property of frosting again).
Comparative example 6 is because constitute the kind (resin kind) and the resin kind of stipulating different (being polyurethane) of the resin of hydrophilic layer 4; So hydrophilic layer 4 (mixture that is made up of silicate compound and resin) can't become porous matter; The hydrophilicity of hydrophilic layer 4 (hydrophily) is insufficient; Even use inorganic oxide particle 5 on it, also can not get excellent hydrophily (hydrophilic continuation) and defrosting property (preventing property of frosting again).
Comparative example 7 is because the average grain diameter of inorganic oxide particle 5 is lower than lower limit; So the average grain diameter of inorganic oxide particle 5 is too small; Can not adhere to well with hydrophilic layer 4 thus; Hydrophily (hydrophilic continuation) and defrosting property (preventing property of frosting again) are improved, and also can not get excellent processability (formability).Specifically, after 5 circulations of the processing during the implementation evaluation hydrophily, inorganic oxide particle 5 peels off from hydrophilic layer 4.Also peel off man-hour adding in addition.Be deposited in the metal die, around mold tool.In addition; Comparative example 8 is because the average grain diameter of inorganic oxide particle 5 surpasses higher limit; So the roughening insufficient (suitably) on fin material 1 surface can't make hydrophily (hydrophilic continuation) and defrosting property (preventing property of frosting again) improve, and also can not get excellent processability (tool wear property).
Comparative example 10 so when making the aluminium fin, adhesion fault (can not suppress adherence) takes place, can not get excellent processability (tool wear property) because the thickness of resin system lubricating layer 6 is lower than lower limit (not having resin system lubricating layer 6).In addition; Comparative example 11 was because the thickness of resin system lubricating layer 6 played higher limit; So because moisture sorption effect of resin system lubricating layer 6 self; Cause the surface of fin material 1 to become adhesion matter, resin system lubricating layer 6 is stuck on the instrument adding man-hour (during drawing), can not successfully process (poor in processability).
More than; Show best embodiment and embodiment; At length be illustrated for aluminum fin material for heat exchanger of the present invention, aim of the present invention is not limited to aforesaid content, and its interest field must make an explanation based on the record of the scope of Patent right requirement.Also have, content of the present invention can certainly change based on aforesaid record, change etc.
[explanation of symbol]
1 aluminum fin material for heat exchanger (fin material)
2 substrates
3 substrate processing layers
4 hydrophilic layers
5 inorganic oxide particles
6 resin system lubricating layers
Claims (4)
1. aluminum fin material for heat exchanger is characterized in that possessing:
The substrate that constitutes by aluminum or aluminum alloy;
Be formed at the substrate processing layer on the said substrate;
Be formed at the hydrophilic layer on the said substrate processing layer;
Attached to the inorganic oxide particle on the said hydrophilic layer;
Be formed at the resin system lubricating layer on the said hydrophilic layer that is attached with said inorganic oxide particle,
Wherein, said hydrophilic layer has: by aM
2ObSiO
2(wherein, M=Li, Na, K, b/a>=2) expression, shared ratio surpasses the silicate compound of 50 quality % among said hydrophilic layer; With one or more the resin among polyacrylic acid, polyacrylamide, styrene maleic acid copolymer or its salt, the thickness of this hydrophilic layer is 0.05～2 μ m,
The average grain diameter of said inorganic oxide particle is 0.001～0.3 μ m, and total adhesion amount is 1～200mg/m
2,
The thickness of said resin system lubricating layer is 0.05～1 μ m.
2. aluminum fin material for heat exchanger according to claim 1 is characterized in that, said inorganic oxide particle contains at least a element among Al, Ti, Zn, Si, Sn, the Cu.
3. aluminum fin material for heat exchanger according to claim 1 is characterized in that, said substrate processing layer is at 1～100mg/m
2Scope contain Cr or Zr, the thickness of said substrate processing layer does
4. aluminum fin material for heat exchanger according to claim 1 is characterized in that, said resin system lubricating layer comprises polyethylene glycol or polyvinyl alcohol.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009072716A JP2010223520A (en) | 2009-03-24 | 2009-03-24 | Aluminum fin material for heat exchanger |
| JP2009-072716 | 2009-03-24 | ||
| PCT/JP2010/054978 WO2010110261A1 (en) | 2009-03-24 | 2010-03-23 | Aluminum fin material for heat exchanger |
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| Publication Number | Publication Date |
|---|---|
| CN102378893A true CN102378893A (en) | 2012-03-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010800112774A Pending CN102378893A (en) | 2009-03-24 | 2010-03-23 | Aluminum fin material for heat exchanger |
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| Country | Link |
|---|---|
| JP (1) | JP2010223520A (en) |
| CN (1) | CN102378893A (en) |
| WO (1) | WO2010110261A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108885071A (en) * | 2016-03-30 | 2018-11-23 | 株式会社Uacj | Hydrophilic coating film and the aluminum fin and heat exchanger for using the hydrophilic coating film |
| CN109945553A (en) * | 2019-03-13 | 2019-06-28 | 广东美的制冷设备有限公司 | Heat exchanger and air conditioner |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5060632B2 (en) | 2010-09-03 | 2012-10-31 | 株式会社神戸製鋼所 | Aluminum alloy fin material for heat exchanger and manufacturing method thereof |
| CN103459629B (en) | 2011-03-31 | 2016-05-18 | 株式会社神户制钢所 | Heat exchanger aluminum alloy fin material and manufacture method thereof for attenuate stretching and punching |
| WO2012132785A1 (en) | 2011-03-31 | 2012-10-04 | 株式会社神戸製鋼所 | Combination press aluminium alloy fin material for heat exchanger, and manufacturing method for same |
| JP2023114164A (en) | 2022-02-04 | 2023-08-17 | 三菱重工業株式会社 | Heat exchanger |
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| JPS618598A (en) * | 1984-06-23 | 1986-01-16 | Kobe Steel Ltd | Fin material for heat exchanger whose surface hydrophilic nature is excellent |
| JP2001050689A (en) * | 1999-08-09 | 2001-02-23 | Sky Alum Co Ltd | Manufacture of precoat fin material for heat exchanger |
| JP2006078134A (en) * | 2004-09-13 | 2006-03-23 | Matsushita Electric Ind Co Ltd | Aluminum fin material |
| CN1776345A (en) * | 2004-11-15 | 2006-05-24 | 日立家用电器公司 | Heat-exchanger and making method |
| JP2007040686A (en) * | 2005-06-27 | 2007-02-15 | Kobe Steel Ltd | Aluminum fin material |
| JP2008224204A (en) * | 2007-02-16 | 2008-09-25 | Kobe Steel Ltd | Aluminum fin material for heat exchanger |
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- 2009-03-24 JP JP2009072716A patent/JP2010223520A/en active Pending
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- 2010-03-23 WO PCT/JP2010/054978 patent/WO2010110261A1/en active Application Filing
- 2010-03-23 CN CN2010800112774A patent/CN102378893A/en active Pending
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| JPS618598A (en) * | 1984-06-23 | 1986-01-16 | Kobe Steel Ltd | Fin material for heat exchanger whose surface hydrophilic nature is excellent |
| JP2001050689A (en) * | 1999-08-09 | 2001-02-23 | Sky Alum Co Ltd | Manufacture of precoat fin material for heat exchanger |
| JP2006078134A (en) * | 2004-09-13 | 2006-03-23 | Matsushita Electric Ind Co Ltd | Aluminum fin material |
| CN1776345A (en) * | 2004-11-15 | 2006-05-24 | 日立家用电器公司 | Heat-exchanger and making method |
| JP2007040686A (en) * | 2005-06-27 | 2007-02-15 | Kobe Steel Ltd | Aluminum fin material |
| JP2008224204A (en) * | 2007-02-16 | 2008-09-25 | Kobe Steel Ltd | Aluminum fin material for heat exchanger |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108885071A (en) * | 2016-03-30 | 2018-11-23 | 株式会社Uacj | Hydrophilic coating film and the aluminum fin and heat exchanger for using the hydrophilic coating film |
| CN108885071B (en) * | 2016-03-30 | 2019-11-05 | 株式会社Uacj | Hydrophilic coating film and the aluminum fin and heat exchanger for using the hydrophilic coating film |
| CN109945553A (en) * | 2019-03-13 | 2019-06-28 | 广东美的制冷设备有限公司 | Heat exchanger and air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2010223520A (en) | 2010-10-07 |
| WO2010110261A1 (en) | 2010-09-30 |
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