CN105239064A - Corrosion-resistant metal material - Google Patents
Corrosion-resistant metal material Download PDFInfo
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- CN105239064A CN105239064A CN201510719761.7A CN201510719761A CN105239064A CN 105239064 A CN105239064 A CN 105239064A CN 201510719761 A CN201510719761 A CN 201510719761A CN 105239064 A CN105239064 A CN 105239064A
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- Prior art keywords
- zinc phosphate
- phosphate layer
- adhesion amount
- metallic substance
- corrosion
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
- C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
- C23C22/07—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing phosphates
- C23C22/23—Condensed phosphates
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- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Treatment Of Metals (AREA)
Abstract
The invention provides a corrosion-resistant metal material. The corrosion-resistant metal material is provided with bottom-layer metal. A zinc phosphate layer is arranged on the surface of the bottom-layer metal, the surface part of the zinc phosphate layer contains Zr, and the adhesion amount of the zinc phosphate layer is 30-55 g/m<2>. A passive film layer is further arranged on the surface of the zinc phosphate layer. The metal material has good corrosion resistance and rusting resistance even under the severe conditions that the environment is changed during conveying. As the metal material is provided with the high-corrosion-resistant and compact passive film protective layer, the metal material not only has good machinability, but also can keep excellent corrosion resistance after being machined.
Description
Technical field
The invention belongs to the technical field of metallic substance, more particularly, the present invention relates to a kind of metallic substance of excellent corrosion resistance.
Background technology
The corrosion of ferrous materials is not all the time in generation.According to statistics, the steel of 10% are about had cannot to reclaim because of corrosion every year.For preventing corrosion, reduce the massive losses caused because of ferrous materials corrosion, just must take various anti-corrosion method, to steel surface, carrying out pot galvanize process is a kind for the treatment of process generally adopted.But for zinc-plated sheet material, usually need to carry out surface passivating treatment to it.The sexavalent chrome passivation of traditional Passivation Treatment mainly based on chromic salt.It is good that chromating has passive film solidity to corrosion, and technology maturation is with low cost, uses simple to operate, and outward appearance is beautiful and have the advantages such as self-reparing capability, and become the conventional passivation treatment process of zinc coating.But because sexavalent chrome toxicity is high and have carinogenicity, the discharge of chromyl passivation waste liquid will be subject to more and more stricter control.Therefore, in recent years, more and more popular to the development and production of chromium-free passivation liquid in the world, in existing chromium-free passivation liquid, mainly contain zirconium liquid, titanium salt passivating solution, the false transformant passivating solution of phosphoric acid salt etc., but they are difficult to reach application request completely in corrosion resistance nature.
CN103924228A discloses a kind of metallic substance of excellent corrosion resistance, and it has underlying metal, is formed with phosphoric acid salt rete at above-mentioned underlying metal material surface; And on described phosphoric acid salt rete, be formed with passivation film.Described passivation film is formed by being immersed in passivating dip by the underlying metal being formed with phosphoric acid salt rete.But the erosion resistance of this metallic substance also needs further raising.
Summary of the invention
For the deficiencies in the prior art, the object of the present invention is to provide a kind of corrosion-resistant metal materials.Even if described metallic substance also can play good erosion resistance and rust-preventing characteristic function under the mal-condition of environment change etc., and before processing after also can keep excellent erosion resistance.
In order to realize foregoing invention object, the technical solution adopted in the present invention is as follows:
A kind of metallic substance, it has underlying metal, has zinc phosphate layer at above-mentioned underlying metal surface, and the surface part of described zinc phosphate layer contains Zr, and the adhesion amount of described zinc phosphate layer is 30-55g/m
2.
Described metallic substance prepares by the following method: first be impregnated in by underlying metal and be dissolved with in the solution of zinc phosphate, then impregnated in be dissolved with Zr compounds solution in, make Zr class phosphate cpd be dispersed in the top section of above-mentioned zinc phosphate class tunicle.
The adhesion amount of described zinc phosphate is 30-55g/m
2, as 32g/m
2, 35g/m
2, 40g/m
2, 42g/m
2, 45g/m
2, 48g/m
2, 50g/m
2, 52g/m
2or 54g/m
2deng.The adhesion amount of described zinc phosphate layer is preferably 35-42g/m
2.
The adhesion amount of described Zr is 5-10g/m
2, as 6g/m
2, 7g/m
2, 8g/m
2or 9g/m
2deng, the adhesion amount of described Zr is preferably 6-8g/m
2.
As preferred technical scheme, the adhesion amount of described zinc phosphate layer is 38g/m
2, the adhesion amount of Zr is 6.5g/m
2.
Described underlying metal is iron, and the principal constituent on its surface is iron.
Described zinc phosphate layer surface also has passivation film.
The adhesion amount of described passivation film is 2 ~ 7g/m
2, as 3g/m
2, 4g/m
2, 5g/m
2or 6g/m
2deng.
Described passivation film obtains by the following method: be immersed in passivating dip by the underlying metal containing zinc phosphate layer, and wherein the temperature of passivating dip is 70 ~ 90 DEG C, and the treatment time is 1 ~ 20 minute, is preferably 5 ~ 8 minutes.
Described passivating solution is made up of the deionized water of the tripolyphosphate zinc-aluminium of 2.5 ~ 3.0wt% Amino Trimethylene Phosphonic Acid, 1.2 ~ 1.5wt%, the boric acid of 0.5 ~ 0.8wt%, the citric acid of 1.2 ~ 1.5wt% and surplus.
Compared with prior art, the metallic substance of excellent corrosion resistance of the present invention has following beneficial effect:
Even if also have under the mal-condition of metallic substance of the present invention environment change etc. when metallic substance transports and can play good erosion resistance and rust-preventing characteristic; owing to having the passive film protective layer of the densification of high corrosion resistance; described passive film protective layer has good oilness simultaneously; therefore; described metallic substance not only has good processibility, and also can keep excellent erosion resistance after processing.
Embodiment
Be further elaborated below with reference to the metallic substance of specific embodiment to excellent corrosion resistance of the present invention, have more complete, accurate and deep understanding to help those skilled in the art to inventive concept of the present invention, technical scheme; It is to be noted that the description of related materials and performance etc. is all exemplary in embodiment, and do not refer to the restriction to invention protection domain.
The metallic substance of excellent corrosion resistance of the present invention, it has underlying metal, is formed with zinc phosphate layer at above-mentioned underlying metal material surface, and the adhesion amount of zinc phosphate layer is 30-55g/m
2; And described zinc phosphate layer surface is containing Zr.
Conventional chemical surface treatment can be utilized to form zinc phosphate layer on the surface of the underlying metals such as iron and steel.
The adhesion amount of described Zr is 5-10g/m
2, be preferably 6-8g/m
2.
As preferred technical scheme, the adhesion amount of described zinc phosphate layer is 38g/m
2, the adhesion amount of Zr is 6.5g/m
2.
The zinc phosphate layer of surface containing Zr can make underlying metal form lubrication quilt, can obtain the metallic substance possessing lubricity and good erosion resistance.
Described underlying metal is iron, and the principal constituent on its surface is iron.
Described zinc phosphate layer surface also has passivation film.
The adhesion amount of described passivation film is 2 ~ 7g/m
2.
Described passivation film obtains by the following method: be immersed in by underlying metal in passivating dip, and wherein the temperature of passivating dip is 70 ~ 90 DEG C, and the treatment time is about 1 ~ 20 minute, is preferably 5 ~ 8 minutes.Described passivating solution is made up of the deionized water of the tripolyphosphate zinc-aluminium of 2.5 ~ 3.0wt% Amino Trimethylene Phosphonic Acid, 1.2 ~ 1.5wt%, the boric acid of 0.5 ~ 0.8wt%, the citric acid of 1.2 ~ 1.5wt% and surplus.
Embodiment 1
A kind of corrosion-resistant metal materials, its underlying metal is No. 45 steel, and described underlying metal surface is attached with zinc phosphate layer, and the adhesion amount of zinc phosphate layer is 30g/m
2, zinc phosphate layer surface part contains Zr, and the adhesion amount of Zr is 5g/m
2.
Embodiment 2
A kind of corrosion-resistant metal materials, its underlying metal is No. 45 steel, and described underlying metal surface is attached with zinc phosphate layer, and the adhesion amount of zinc phosphate layer is 55g/m
2, zinc phosphate layer surface part contains Zr, and the adhesion amount of Zr is 10g/m
2.
Embodiment 3
A kind of corrosion-resistant metal materials, its underlying metal is No. 45 steel, and described underlying metal surface is attached with zinc phosphate layer, and the adhesion amount of zinc phosphate layer is 45g/m
2, zinc phosphate layer surface part contains Zr, and the adhesion amount of Zr is 8g/m
2.
Embodiment 4
A kind of corrosion-resistant metal materials, its underlying metal is No. 45 steel, and described underlying metal surface is attached with zinc phosphate layer, and the adhesion amount of zinc phosphate layer is 38g/m
2, zinc phosphate layer surface part contains Zr, and the adhesion amount of Zr is 6.5g/m
2.
Embodiment 5
A kind of corrosion-resistant metal materials, its underlying metal is No. 45 steel, and described underlying metal surface is attached with zinc phosphate layer, and the adhesion amount of zinc phosphate layer is 45g/m
2, zinc phosphate layer surface part contains Zr, and the adhesion amount of Zr is 8g/m
2, zinc phosphate layer surface attachment has passivation film, and the adhesion amount of passivation film is 2g/m
2.
Described passivation film obtains by the following method: be immersed in passivating dip by the underlying metal containing zinc phosphate layer, and the temperature of passivating dip is 70 ~ 90 DEG C, and the treatment time is 1 ~ 20 minute; Described passivating solution is made up of the deionized water of the tripolyphosphate zinc-aluminium of 2.5 ~ 3.0wt% Amino Trimethylene Phosphonic Acid, 1.2 ~ 1.5wt%, the boric acid of 0.5 ~ 0.8wt%, the citric acid of 1.2 ~ 1.5wt% and surplus.
Embodiment 6
A kind of corrosion-resistant metal materials, its underlying metal is No. 45 steel, and described underlying metal surface is attached with zinc phosphate layer, and the adhesion amount of zinc phosphate layer is 40g/m
2, zinc phosphate layer surface part contains Zr, and the adhesion amount of Zr is 7g/m
2, zinc phosphate layer surface attachment has passivation film, and the adhesion amount of passivation film is 7g/m
2.
The preparation method of passivation film is with embodiment 5.
Embodiment 7
A kind of corrosion-resistant metal materials, its underlying metal is No. 45 steel, and described underlying metal surface is attached with zinc phosphate layer, and the adhesion amount of zinc phosphate layer is 38g/m
2, zinc phosphate layer surface part contains Zr, and the adhesion amount of Zr is 9g/m
2, zinc phosphate layer surface attachment has passivation film, and the adhesion amount of passivation film is 5g/m
2.
The preparation method of passivation film is with embodiment 5.
Comparative example 1
Except not containing except Zr, all the other are identical with embodiment 4.
Comparative example 2
Except not containing except Zr, all the other are identical with embodiment 7.
Comparative example 3
Adhesion amount except zinc phosphate layer is 28g/m
2, the adhesion amount of Zr is 4g/m
2outward, all the other are identical with embodiment 4.
Comparative example 4
Adhesion amount except zinc phosphate layer is 60g/m
2, the adhesion amount of Zr is 12g/m
2outward, all the other are identical with embodiment 4.
Comparative example 5
Adhesion amount except passivation film is 1g/m
2outward, all the other are identical with embodiment 7.
Comparative example 6
Adhesion amount except passivation film is 8g/m
2outward, all the other are identical with embodiment 7.
By neutral salt spray corrosion test, its resistance to corrosion is evaluated for embodiment 1-7 and comparative example 1-7.Described neutral salt soak test refers to and will to immerse respectively through the sample of process of the present invention and comparison specimen in the sodium chloride solution of 5wt% 30 days, observes " white rust " area percentage after certain hour.In addition, described passivation film also needs to have excellent oilness, for this reason by comparing the oilness before and after Passivation Treatment, when the oilness of the passivation film formed after passivation and steel plate galvanized base material be in a ratio of on an equal basis or be better labeled as qualified, and by the oilness of the passivation film formed after passivation compared with steel plate galvanized base material poor be labeled as defective.Experimental result display in Table 1.
Table 1
For the ordinary skill in the art; specific embodiment is just to invention has been exemplary description; obvious specific implementation of the present invention is not subject to the restrictions described above; as long as have employed the improvement of the various unsubstantialities that method of the present invention is conceived and technical scheme is carried out; or design of the present invention and technical scheme directly applied to other occasion, all within protection scope of the present invention without to improve.
Claims (10)
1. a metallic substance, it has underlying metal, it is characterized in that: have zinc phosphate layer at above-mentioned underlying metal surface, and the surface part of described zinc phosphate layer contains Zr, and the adhesion amount of described zinc phosphate layer is 30-55g/m
2.
2. metallic substance according to claim 1, is characterized in that: the adhesion amount of described zinc phosphate layer is 35-42g/m
2.
3. metallic substance according to claim 1 and 2, is characterized in that: the adhesion amount of described Zr is 5-10g/m
2.
4. according to the metallic substance one of claim 1-3 Suo Shu, it is characterized in that: the adhesion amount of described Zr is 6-8g/m
2.
5. according to the metallic substance one of claim 1-4 Suo Shu, it is characterized in that: the adhesion amount of described zinc phosphate layer is 38g/m
2, the adhesion amount of Zr is 6.5g/m
2.
6. according to the metallic substance one of claim 1-5 Suo Shu, it is characterized in that: described underlying metal is iron, and the principal constituent on its surface is iron.
7. according to the metallic substance one of claim 1-6 Suo Shu, it is characterized in that: described zinc phosphate layer surface also has passivation film.
8. according to the metallic substance one of claim 1-7 Suo Shu, it is characterized in that: the adhesion amount of described passivation film is 2 ~ 7g/m
2.
9. the metallic substance according to claim 7 or 8, it is characterized in that: described passivation film obtains by the following method: the underlying metal containing zinc phosphate layer is immersed in passivating dip, the temperature of passivating dip is 70 ~ 90 DEG C, and the treatment time is 1 ~ 20 minute.
10. metallic substance according to claim 9, is characterized in that: described passivating solution is made up of the deionized water of the tripolyphosphate zinc-aluminium of 2.5 ~ 3.0wt% Amino Trimethylene Phosphonic Acid, 1.2 ~ 1.5wt%, the boric acid of 0.5 ~ 0.8wt%, the citric acid of 1.2 ~ 1.5wt% and surplus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510719761.7A CN105239064A (en) | 2015-10-29 | 2015-10-29 | Corrosion-resistant metal material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510719761.7A CN105239064A (en) | 2015-10-29 | 2015-10-29 | Corrosion-resistant metal material |
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| Publication Number | Publication Date |
|---|---|
| CN105239064A true CN105239064A (en) | 2016-01-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510719761.7A Pending CN105239064A (en) | 2015-10-29 | 2015-10-29 | Corrosion-resistant metal material |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040058189A1 (en) * | 2002-09-23 | 2004-03-25 | Hodgens Henry M. | Zinc-diffused alloy coating for corrosion/heat protection |
| CN101142079A (en) * | 2005-03-16 | 2008-03-12 | 日本帕卡濑精株式会社 | Surface-treated metallic material |
| CN101652503A (en) * | 2007-04-04 | 2010-02-17 | 新日本制铁株式会社 | Plated steel sheet for can and process for producing the same |
| CN102144047A (en) * | 2008-10-08 | 2011-08-03 | 新日本制铁株式会社 | Metal material having excellent corrosion resistance |
| CN102822387A (en) * | 2010-03-25 | 2012-12-12 | 新日本制铁株式会社 | Steel sheet for vessel having excellent corrosion resistance |
| CN103921499A (en) * | 2014-04-22 | 2014-07-16 | 刘建忠 | Metal material with excellent soldering performance |
| CN103924228A (en) * | 2014-04-22 | 2014-07-16 | 祝军 | Metal material with excellent corrosion resistance |
-
2015
- 2015-10-29 CN CN201510719761.7A patent/CN105239064A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040058189A1 (en) * | 2002-09-23 | 2004-03-25 | Hodgens Henry M. | Zinc-diffused alloy coating for corrosion/heat protection |
| CN101142079A (en) * | 2005-03-16 | 2008-03-12 | 日本帕卡濑精株式会社 | Surface-treated metallic material |
| CN101652503A (en) * | 2007-04-04 | 2010-02-17 | 新日本制铁株式会社 | Plated steel sheet for can and process for producing the same |
| CN102144047A (en) * | 2008-10-08 | 2011-08-03 | 新日本制铁株式会社 | Metal material having excellent corrosion resistance |
| CN102822387A (en) * | 2010-03-25 | 2012-12-12 | 新日本制铁株式会社 | Steel sheet for vessel having excellent corrosion resistance |
| CN103921499A (en) * | 2014-04-22 | 2014-07-16 | 刘建忠 | Metal material with excellent soldering performance |
| CN103924228A (en) * | 2014-04-22 | 2014-07-16 | 祝军 | Metal material with excellent corrosion resistance |
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Application publication date: 20160113 |
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