CN1865498B - Heterogeneous metal joining member excellent in corrosion resistance and process for preparing same - Google Patents
Heterogeneous metal joining member excellent in corrosion resistance and process for preparing same Download PDFInfo
- Publication number
- CN1865498B CN1865498B CN2005100727426A CN200510072742A CN1865498B CN 1865498 B CN1865498 B CN 1865498B CN 2005100727426 A CN2005100727426 A CN 2005100727426A CN 200510072742 A CN200510072742 A CN 200510072742A CN 1865498 B CN1865498 B CN 1865498B
- Authority
- CN
- China
- Prior art keywords
- ion
- metal
- corrosion
- corrosion resistance
- zinc
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
Links
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 46
- 239000002184 metal Substances 0.000 title claims abstract description 46
- 238000005260 corrosion Methods 0.000 title claims abstract description 30
- 230000007797 corrosion Effects 0.000 title claims abstract description 30
- 238000004519 manufacturing process Methods 0.000 title claims description 9
- 238000005304 joining Methods 0.000 title claims description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 38
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 20
- 229910052742 iron Inorganic materials 0.000 claims abstract description 20
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 19
- 238000000034 method Methods 0.000 claims abstract description 17
- 239000011701 zinc Substances 0.000 claims abstract description 15
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 15
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 14
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000011737 fluorine Substances 0.000 claims abstract description 13
- 229910052731 fluorine Inorganic materials 0.000 claims abstract description 13
- 239000000463 material Substances 0.000 claims abstract description 11
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 10
- PTFCDOFLOPIGGS-UHFFFAOYSA-N Zinc dication Chemical compound [Zn+2] PTFCDOFLOPIGGS-UHFFFAOYSA-N 0.000 claims abstract description 3
- 150000002500 ions Chemical class 0.000 claims description 23
- 239000000956 alloy Substances 0.000 claims description 8
- -1 hexafluorosilicic acid ion Chemical class 0.000 claims description 4
- 239000002253 acid Substances 0.000 claims description 2
- 239000004411 aluminium Substances 0.000 description 12
- 239000011248 coating agent Substances 0.000 description 12
- 238000000576 coating method Methods 0.000 description 12
- 230000003628 erosive effect Effects 0.000 description 8
- 239000000243 solution Substances 0.000 description 8
- 238000002474 experimental method Methods 0.000 description 7
- 239000003973 paint Substances 0.000 description 7
- 238000007747 plating Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 239000007769 metal material Substances 0.000 description 6
- 150000002739 metals Chemical class 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 5
- 238000005266 casting Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 238000005507 spraying Methods 0.000 description 4
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 3
- 125000002091 cationic group Chemical group 0.000 description 3
- 150000001768 cations Chemical class 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 230000037452 priming Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- BTBUEUYNUDRHOZ-UHFFFAOYSA-N Borate Chemical compound [O-]B([O-])[O-] BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 description 2
- 239000008186 active pharmaceutical agent Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000005238 degreasing Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000004070 electrodeposition Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 150000004761 hexafluorosilicates Chemical class 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 150000003751 zinc Chemical class 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 229910017518 Cu Zn Inorganic materials 0.000 description 1
- 229910017752 Cu-Zn Inorganic materials 0.000 description 1
- 229910017943 Cu—Zn Inorganic materials 0.000 description 1
- 229910000640 Fe alloy Inorganic materials 0.000 description 1
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 description 1
- 229910001297 Zn alloy Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- KCZFLPPCFOHPNI-UHFFFAOYSA-N alumane;iron Chemical compound [AlH3].[Fe] KCZFLPPCFOHPNI-UHFFFAOYSA-N 0.000 description 1
- 150000001398 aluminium Chemical class 0.000 description 1
- 239000012267 brine Substances 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- TVZPLCNGKSPOJA-UHFFFAOYSA-N copper zinc Chemical compound [Cu].[Zn] TVZPLCNGKSPOJA-UHFFFAOYSA-N 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 230000005518 electrochemistry Effects 0.000 description 1
- 238000001962 electrophoresis Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- UQSQSQZYBQSBJZ-UHFFFAOYSA-N fluorosulfonic acid Chemical class OS(F)(=O)=O UQSQSQZYBQSBJZ-UHFFFAOYSA-N 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 229910001453 nickel ion Inorganic materials 0.000 description 1
- 229940005654 nitrite ion Drugs 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 229940085991 phosphate ion Drugs 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- 230000003405 preventing effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
- LRXTYHSAJDENHV-UHFFFAOYSA-H zinc phosphate Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O LRXTYHSAJDENHV-UHFFFAOYSA-H 0.000 description 1
- 229910000165 zinc phosphate Inorganic materials 0.000 description 1
Images
Landscapes
- Prevention Of Electric Corrosion (AREA)
Abstract
The invention discloses a heterogenic metal joint structure preparing method with excellent corrosion resistance, which is characterized by the following: immersing the butt iron material and aluminum or aluminum alloy structure in the solution with fluorine coordination and zinc ion; evolving near the butt part for metal zinc; improving touching corrosion-resistance of heterogenic metal reliably.
Description
Technical field
The present invention relates in automobile etc. good member and the manufacture method thereof of employed anti-differential metals contact corrosion in employed aluminium-steel dissimilar metal junction.
Background technology
Known when the junction at members such as automobiles is used in combination dissimilar metal, owing to being in contact with one another, dissimilar metal conducts, can promote corrosion.
Plant corrosion that the contact of dissimilar metal causes thus and be difference, produce potential difference, flow through corrosion current and produce at this intermetallic because of the ionization tendency of metal.Corrosion in order to prevent to be caused by dissimilar metal contact in the past, known have a following countermeasure.
(1) conventional art 1 (patent documentation 1 etc.)
When the metal that shows low potential when showing the metallic contact of noble potential, the metal that will show current potential in the middle of it is to the metal side spraying plating that shows low potential.Spraying plating also can be implemented any one party or the both sides of low-priced precious metal.So just can reduce the potential difference with two metals, thereby can reduce the electrocorrosion of the metal that shows low potential.
(2) conventional art 2 (patent documentation 2 etc.)
Formation anodic metallic surface in the middle of 2 kinds of metals that contact in the aqueous solution, will having optionally, negatively charged ion sees through the coating of effect as priming paint.In addition, overlapping thereon coating has the optionally coating of cation permeation effect, or with the bonding covering cationic exchange membrane of priming paint, perhaps according to the anionresin side that makes the exchange of particles composite membrane towards metal side, the cationic exchange side is towards the mode of solution side, with the bonding covering of priming paint.Perhaps bottom applies the coating with cation permeation effect on the metal covering that forms negative electrode, overlapping thereon coating has optionally, and negatively charged ion sees through the coating that acts on, perhaps two intermetallic ionic electrophoresis are blocked, prevented crevice corrosion with other method.
(3) conventional art 3 (patent documentation 3 etc.)
On different metallic substance, terminal is set, applies volts DS, prevent the ionization of metallic substance, prevent the generation of electrocorrosion.
(4) conventional art 4 (patent documentation 4 etc.)
Coating contains the conductive coating paint of the metal low-priceder than aluminium in large quantities on the metallic surface of repeater basket and stationary housings.
(5) conventional art 5 (patent documentation 5 etc.)
When metallic surfaces such as Cu, Cu-Zn alloy and Ni being implemented plating Cr, promptly reduce the Zn alloy that likens to the other side's metallic substance of the different metal materials that contacted, a side's that Fe, Al etc. are low-priceder Corrosion of Metallic Materials amount.
(6) conventional art 6 (patent documentation 6 etc.)
Two sides at the thin slice that constitutes by the metal bigger than the iron ion tendency, dissimilar metal is carried out coating film treatment, constitute natural electrode potential difference with steel and be 0 to-300mV antirust thin slice, by this antirust thin slice being clipped between the junction surface of two steel plates the formation rustproof layer.
(7) conventional art 7 (patent documentation 7 etc.)
To the dissimilar metal object that contacts with aluminium alloy, be the zinc cobalt-base alloy plated film that benchmark is implemented the cobalt contents of 1～5 weight % with the alloy coating.
(8) conventional art 8 (patent documentation 8 etc.)
Be in the structure that under stress-loaded, contacts of the steel member at aluminium alloy casting thing with Sensitivity of Stress Corrosion and dissimilar metal, prevent the method for the stress corrosion of aluminium alloy casting thing, be at least a portion of the contact area between these castingss and the steel member, folder or represents that with mixed potential the stress corrosion of the aluminium alloy casting thing of hardware more than height-1500mVvsSCE or metal level prevents method more than the low 100mVvsSCE of spontaneous potential than castings.
[patent documentation 1] spy opens clear 55-6411 communique
[patent documentation 2] spy opens clear 60-58272 communique
[patent documentation 3] spy opens clear 61-23777 communique
[patent documentation 4] special public clear 54-2894 communique
[patent documentation 5] special public clear 59-37753 communique
[patent documentation 6] spy opens flat 5-222557 communique
[patent documentation 7] spy opens flat 7-252679 communique
[patent documentation 8] spy opens flat 9-157870 communique
As mentioned above, though the various methods that prevent the crevice corrosion of dissimilar metal are arranged, be used in imagination under the situation of actual engagement member, these conventional arts have following problem.Therefore conventional art 1 can't be applicable to the member of complicated shape owing to use spraying plating.Conventional art 2,4 and 8 is difficult to brush proximal most position or the gap at the junction surface.Conventional art 3 stably applies operating in transfer roller or the building materials of volts DS by on different metallic substance terminal being set and is difficult to carry out.The big or small aspect that operates in the member that can be suitable for of 5 pairs of metals enforcement of conventional art plating Cr is restricted.In addition, owing to use sexavalent chrome, therefore the problem of environment aspect is arranged.The thin slice that conventional art 6 will be coated with dissimilar metal is clamped in way in the junction surface unusual difficulty on making, and in addition, might thin slice be disappeared the heat when engaging.Conventional art 7 is being applicable under the situation of engagement member, remove because the plated film at junction surface is melted, so effect is very little.
Summary of the invention
The objective of the invention is to, solve the problem of described conventional art at one stroke, utilize to be suitable for the superior corrosion resistance that practical mechanism has guaranteed to engage the member of iron type materials and aluminum or aluminum alloy material.
In order to reach described purpose, the feature of the scheme that the inventor etc. proposed is as follows.
(1) a kind of manufacture method of heterogeneous metal joining member of excellent corrosion resistance (technical scheme 1), it is characterized in that, the member that has engaged iron type materials and aluminum or aluminum alloy material is immersed in the solution that contains fluorine coordination ion and zine ion, metallic zinc is separated out near the junction surface.
(2) manufacture method (technical scheme 2) of record in described (1) is characterized in that described fluorine coordination ion is hexafluorosilicic acid ion or Tetrafluoroboric acid ion.
(3) manufacture method (technical scheme 3) of record in described (1) or (2) is characterized in that described fluorine coordination ion concentration and described zinc ion concentration are more than 2mmol/l.
(4) a kind of heterogeneous metal joining member of excellent corrosion resistance (technical scheme 4) is the member that has engaged iron type materials and aluminum or aluminum alloy material, it is characterized in that, metallic zinc is present near the junction surface side engagement portion of iron type materials.
(5) heterogeneous metal joining member (technical scheme 5) of the excellent corrosion resistance of record in described (4) is characterized in that metallic zinc is separated out.
(6) heterogeneous metal joining member (technical scheme 6) of excellent corrosion resistance of record in described (4) is characterized in that, metallic zinc in the solution that contains fluorine coordination ion and zine ion, the member that dipping is engaged and being separated out.
According to the present invention, as than aluminium near the junction surface of the iron type materials of metal more expensive on the electrochemistry and aluminium, exist with precipitation state by making metallic zinc, just can improve anti-differential metals contact corrosion reliably.
Description of drawings
Fig. 1 is near the precipitation state of the metallic zinc of (engage the influence portion) junction surface of expression aluminium of the present invention-iron engagement member and the synoptic diagram that corrosive suppresses mechanism.
Fig. 2 is the synoptic diagram that near the corrosive at the junction surface of expression aluminium-iron engagement member (engaging the portion that influences) promotes mechanism.
Embodiment
When engaging, as shown in Figure 2, the aluminium (Al) as the metal low-priceder than iron (Fe) becomes Al usually when making aluminum or aluminum alloy material (hereinafter referred to as aluminium class material or abbreviate aluminium as) and iron, steel or iron alloy (hereinafter referred to as iron type materials or abbreviate iron as)
3+And stripping promotes corrosion.This is because because the potential difference of aluminium and iron is big, corrosion current flows at two storerooms.
So, in order to prevent this type of corrosive promoter action, influence in the portion at this dissimilar metal joint, exist by the metal that makes intermediary ionization tendency with aluminium and iron, reduce this potential difference and get final product.Previous conventional art also utilizes this kind principle to suppress crevice corrosion.
But, have the problem in the aforesaid practicality in the conventional art, particularly be difficult to the metal that proximal most position or gap chien shih at the junction surface have the intermediary ionization tendency and exist fully, reality is thus, also can't adopt as the technology of reality.
Given this inventor etc. plant practical situation, deep experiment and research have been carried out repeatedly, results verification, be immersed in the solution that contains fluorine coordination ion and zine ion by engagement member aluminium and iron, densification and the firm high metallic zinc of connecting airtight property are present near the junction surface, in addition, because this metallic zinc has the intermediary ionization tendency of aluminium and iron, therefore just can bring into play the good dissimilar metal contact erosion resistance of described engagement member.
According to the method that conjugant is immersed in this solution that contains fluorine coordination ion and zine ion, utilize the situation of the potential difference that has two materials, make following reaction
2Al+3Zn
2+→2Al
3++3Zn
Carry out near the position of the influence that the potential difference that is caused by the dissimilar metal joint is arranged the junction surface, just can make metallic zinc separate out, adhere to, exist on the surface of the iron at this position as shown in Figure 1.Like this, because this zinc is to form because of separating out, even therefore near very narrow junction surface, also can be reliably and fully attached to the surface of iron, and zinc separate out fine and close and the connecting airtight property height of layer, be difficult to disappear because of peeling off or destroying, can keep attachment state chronically.Consequently, the influence of potential difference is alleviated, and can suppress corrosion effectively.
In addition, the fluorine coordination ion has the oxide scale film on dissolved aluminum surface, the effect that described reaction is carried out smoothly.As the salt that contains the fluorine coordination ion, hexafluorosilicate, a tetrafluoro borate, hexafluorophosphate, fluorosulfuric acid salt are for example arranged, but, preferably use hexafluorosilicate, a tetrafluoro borate from stability, reactive consideration.
As the treatment time, consider preferred 30 seconds～3 minutes from erosion resistance and the productive angle of guaranteeing engagement member, treatment temp is considered from reactive and temperature controlled easness, preferred more than 40 ℃, consider from the evaporation inhibition of treatment solution, preferred below 80 ℃.
And, therefore owing to be generally by the part of member clamping near the junction surface, can not handle with other method such as plating or spraying plating.
[embodiment]
1. experimental technique
(1) spot weld
With mild steel plate (30 * 100 * 0.8mm) and aluminium sheet (6022 and 5023,30 * 100 * 0.8mm) under the condition of 12kV, 200ms spot weld.
(2) zinc salt is handled
In the solution shown in the table 1, under 60 ℃, flooded 30～120s.
(3) change into processing
Treatment process: according to the surface of the washing of (a) degreasing → (b) → (c) adjust → (d) change into processings (dip treating) → (e) change into the pure water of after drying → (f) washing → (g) wash → drying that (h) dewaters → (i) order of coating is handled.
(a) degreasing: use alkaline skimming treatment agent (Japanese paint (strain) corporate system, the A agent of trade(brand)name " サ Off Network リ one Na one SD250 ": 1.5wt%, the B agent: the 0.9wt% aqueous solution, 43 ℃ of following dip treating 2 minutes.
(b) washing: at room temperature flooded in the water channel water 15 seconds.
(c) surface is adjusted: use the 0.1wt% aqueous solution of surface conditioner (Japanese paint (strain) corporate system, trade(brand)name " サ one Off Off ア イ Application 5N-10 " reduction dye liquor is used), at room temperature the process object metal impregnation was handled 30 seconds.
(d) change into processing: following zinc phosphate treatment agent as treatment solution, has been carried out changing into processing with treated material 50 ℃ of following dip treating 2 minutes.
Zine ion: 1.0g/l, nickel ion: 1.0g/l, mn ion: 0.8g/l, phosphate ion: 15.0g/l, nitrate ion: 6.0g/l, nitrite ion: 0.12g/l
Adjusted value: 2.5pt, full acidity: 22pt, free acidity: 0.3～0.5pt
(4) galvanic deposit applies
Utilize cationic electrodeposition to apply cation electrodeposition coating (Japanese paint (strain) corporate system, trade(brand)name " POWER TOPV50GRAY "),, formed the coat film of thickness 30 μ m 170 ℃ sintering temperatures 25 minutes.
(5) erosion resistance experiment (CCT)
Use the experiment slice of making in described (1)～(4), carry out compound corrosion experiment, carried out the evaluation of preventing property of differential metals contact corrosion.Corrosion experiment to brine spray 2 hours, dry 2 hours, moistening 2 hours be that 1 round-robin experiment has been carried out 100 times repeatedly.Peel off the junction surface and observe, estimated erosion resistance (maximum corrosion depth of Al).
2. result
The evaluation result of erosion resistance, chemical treatability is illustrated in the table 1.Here, erosion resistance is a maximum corrosion depth (mm) of having measured Al, is classified as zero: 0～0.01 (mm), △: 0.01～0.1 (mm), *: above 3 levels of 0.1 (mm) and estimating.In addition, chemical treatability is the adhesion amount of stacked coat film, is classified as zero: 1～2 (g/m
2), △: 0.5～1 (g/m
2), *: 0～0.5 (g/m
2) 3 levels and estimating.
From with showing, finding that in the example 1～9, chemical treatability, erosion resistance are all very good.On the other hand, in the comparative example 10, because fluorine coordination ion reactive low, so effect is insufficient.
And, in the above explanation, though as heterogeneous metal joining member aluminium and iron are narrated, the present invention also can be applied to its ionization tendency than higher metal of zinc and lower metallic joint the erosion resistance of member improve on.
[table 1]
Claims (3)
1. the manufacture method of the heterogeneous metal joining member of an excellent corrosion resistance is characterized in that, the member that has engaged iron type materials and aluminum or aluminum alloy material is immersed in the solution that contains fluorine coordination ion and zine ion, and metallic zinc is separated out near the junction surface.
2. manufacture method according to claim 1 is characterized in that, described fluorine coordination ion is hexafluorosilicic acid ion or Tetrafluoroboric acid ion.
3. manufacture method according to claim 1 and 2 is characterized in that, described fluorine coordination ion concentration and described zinc ion concentration are more than 2mmol/l.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2005100727426A CN1865498B (en) | 2005-05-19 | 2005-05-19 | Heterogeneous metal joining member excellent in corrosion resistance and process for preparing same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2005100727426A CN1865498B (en) | 2005-05-19 | 2005-05-19 | Heterogeneous metal joining member excellent in corrosion resistance and process for preparing same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1865498A CN1865498A (en) | 2006-11-22 |
| CN1865498B true CN1865498B (en) | 2010-04-28 |
Family
ID=37424642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2005100727426A Expired - Fee Related CN1865498B (en) | 2005-05-19 | 2005-05-19 | Heterogeneous metal joining member excellent in corrosion resistance and process for preparing same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1865498B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010242195A (en) * | 2009-04-09 | 2010-10-28 | Kobe Steel Ltd | Surface treated metallic material excellent in anti-corrosion property against dissimilar metal contact corrosion and dissimilar material joint body including the same |
| JP6923099B1 (en) * | 2021-03-23 | 2021-08-18 | 秋田県 | Dissimilar metal joints and their manufacturing methods |
-
2005
- 2005-05-19 CN CN2005100727426A patent/CN1865498B/en not_active Expired - Fee Related
Non-Patent Citations (2)
| Title |
|---|
| JP特开2002-212753A 2002.07.31 |
| JP特开平7-252679A 1995.10.03 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1865498A (en) | 2006-11-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101431942B1 (en) | Method for producing steel sheet for container | |
| CN101487115B (en) | Treatment liquid for metal surface treatment and surface treatment method | |
| US10738383B2 (en) | Method for nickel-free phosphating metal surfaces | |
| US4114505A (en) | Coatings and methods of application | |
| FR2487383A1 (en) | LONG-LIFE THIN-SHEET FOR AUTOMOTIVE BODYWORK AND METHOD FOR MANUFACTURING THE SAME | |
| JPH06506263A (en) | Phosphate treatment method for metal surfaces | |
| JPS58177493A (en) | Anodizing method for aluminum materials and aluminum coated parts | |
| JP2002322593A (en) | Electrolytic phosphate chemical conversion treatment method | |
| CN1865498B (en) | Heterogeneous metal joining member excellent in corrosion resistance and process for preparing same | |
| US6099714A (en) | Passification of tin surfaces | |
| US4978588A (en) | Plated steel sheet for a can | |
| US5820741A (en) | Passification of zinc surfaces | |
| JP2000064090A (en) | Surface treatment of metal | |
| CN1970844A (en) | Surface treatment method of aluminum base material | |
| JP4365667B2 (en) | Dissimilar metal joint member excellent in corrosion resistance and manufacturing method | |
| JP2841995B2 (en) | Molten salt electroplating method | |
| KR100695593B1 (en) | Dissimilar metal bonding member and manufacturing method excellent in corrosion resistance | |
| JPS62278297A (en) | Method for chromating metal-surface-treated steel sheet | |
| JPH02153098A (en) | Phosphating method | |
| KR890002496B1 (en) | Process for preparing zn-ni-alloy-electroplated steel sheets excellent in corrosion reisstance | |
| JP2003213459A (en) | Surface treated steel sheet having excellent corrosion resistance and spot weldability and production method therefor | |
| JP2726189B2 (en) | Manufacturing method of titanium and titanium alloy sheets with excellent paintability | |
| JP3211413B2 (en) | Surface treatment method for Al or Al alloy material | |
| EP1722007B1 (en) | Dissimilar metal joint member with good corrosion resistance and method for manufacturing same | |
| JPH02173249A (en) | Multilayered plated steel sheet having excellent flaking resistance |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100428 Termination date: 20200519 |