CN105420714A - Method for preparing high-corrosion-resistance aluminum alloy trivalent chromium composite conversion coating - Google Patents
Method for preparing high-corrosion-resistance aluminum alloy trivalent chromium composite conversion coating Download PDFInfo
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- CN105420714A CN105420714A CN201510834462.8A CN201510834462A CN105420714A CN 105420714 A CN105420714 A CN 105420714A CN 201510834462 A CN201510834462 A CN 201510834462A CN 105420714 A CN105420714 A CN 105420714A
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- aluminum
- aluminum alloy
- trivalent chromium
- aluminium alloy
- conversion film
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Classifications
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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
- C23C22/40—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 molybdates, tungstates or vanadates
- C23C22/44—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 molybdates, tungstates or vanadates containing also fluorides or complex fluorides
-
- 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
- C23C22/78—Pretreatment of the material to be coated
-
- 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
- C23C2222/00—Aspects relating to chemical surface treatment of metallic material by reaction of the surface with a reactive medium
- C23C2222/10—Use of solutions containing trivalent chromium but free of hexavalent chromium
Abstract
The invention discloses an efficient method for preparing an aluminum alloy trivalent chromium conversion coating. The method includes the following steps that a, the surface of an aluminum or aluminum alloy workpiece is pre-treated; b, the aluminum or aluminum alloy workpiece pre-treated in the step a is put in a passivation solution and impregnated for three to ten minutes in the environment of 25-50 DEG C; the passivation solution is composed of 2-20 g/L of chromic salt, 1-15 g/L of phosphate, 2-15 g/L of molybdate, 1-10 g/L of nitrate, 0.075-0.3 g/L of ammonium bifluoride and 0.1-1 g/L of a complexing agent; and the pH of the formed aluminum alloy passivation solution is 2.0-3.5. The coating generated through the method is colored, operation and observing during production are facilitated, and the corrosion resistance of the aluminum or aluminum alloy workpiece can be effectively improved.
Description
Technical field
The present invention relates to aluminum alloy surface process field, referring to the trivalent chromium compound conversion film preparation technology for improving aluminium alloy rotproofness particularly.
Background technology
Aluminum-aluminum alloy has that specific tenacity is high, heat conduction and good conductivity, color and luster are attractive in appearance, nonmagnetic and plasticity and plasticity is good, without advantages such as low temperature brittleness, be a kind of nonferrous materials with excellent comprehensive performance, use it for the three large purposes that building, automobile, packaging have become industrially developed country of the world today.
Although Aluminum-aluminum alloy has very large advantage, and is used widely, because the electropotential of aluminium is lower, when in wet environment with noble potential metallic contact time, very easily produce crevice corrosion.In addition aluminium alloy in the fabrication process, various alloying element is added due to the higher mechanical property of pursuit and otherwise over-all properties, thus make aluminium alloy internal chemical composition and uneven microstructure, add the existence of unrelieved stress in thermal treatment and process engineering, make aluminum alloy materials very easily cause micro-cell corrosion in environment for use.Therefore need to carry out surfacecti proteon process to Aluminum-aluminum alloy.
Aluminum alloy surface protective process technology is more, mainly contains organic solvent cleaning, mechanical treatment polishing, anodic oxidation and chemical treatment.Although organic solvent cleaning can on the basis not destroying Aluminum-aluminum alloy Natural Oxide Film on the surface effective greasy dirt, the impurity removed on its surface, but be only applicable to indoor and the relatively mild situation of condition, Working environment is poor, and organic solvent has larger harm to human body.Mechanical process process can remove oxide film, but increases few to the sticking power of organic paint film.Anodic oxidation is the most important in aluminum i ndustry and one of most widely used process for treating surface, it significantly can improve the erosion resistance of Aluminum-aluminum alloy, improve surface hardness and the wear resistance of Aluminum-aluminum alloy, but aluminium alloy anode oxide needs appropriate hanger, power unit and cooling apparatus, cost is higher, and anodic oxidation treatment can reduce the mechanical property of alloy matrix aluminum, easy germinating stress crack, cause the tired in advance of material, therefore the current process to building aluminium alloy turns to chemical conversion treatment to add powder coating from anodic oxidation.
In the chemical treatment method of aluminum alloy surface protection, although there is excellent barrier propterty and coating performance containing chromium conversion film, but sexavalent chrome is poisonous, pollution is had to environment, be strong carcinogen and cost for wastewater treatment is high, the industrial wastewater discharge standard that China, European Union, Japan and the U.S. etc. implement all strictly limits the use of sexavalent chrome in metal finishing.Although and some novel zero waste water discharge such as rare-earth conversion coatings, phosphatize phosphate coat obtain some successes, still have many deficiencies.For sexavalence network, film-forming process is complicated and time-consuming, and antiseptic property also has larger gap with sexavalence network, and some conversion films have color unlike sexavalent chrome conversion film, is difficult to control in therefore producing.Chromic toxicity only has chromic 1%, and trivalent chromium conversion film meets RoHS regulation, and waste water is easy to process, is one of promising passivation technology of most of a kind of alternative sexavalent chrome passivating technique.But the solidity to corrosion of the trivalent chromium conversion film of aluminum current alloy surface need to improve.
Summary of the invention
Object of the present invention is exactly deficiency in order to solve prior art and a kind of solidity to corrosion that effectively can improve aluminium alloy provided, and the rete generated has color, be convenient to observe, the preparation method of the high anti-corrosion aluminum alloy trivalent chromium compound conversion film of the passive film with high anti-corrosion can be formed fast.
The present invention adopts following technical solution to realize above-mentioned purpose: a kind of preparation technology of high-efficient aluminium alloy trivalent chromium conversion film, comprises the following steps:
A, pre-treatment is carried out to aluminum or aluminum alloy workpiece surface;
B, the aluminum or aluminum alloy workpiece of step a process is inserted in passivating solution, in 25 DEG C of-50 DEG C of environment, flood 3-10min; The composition of described passivating solution comprises:
The pH of described aluminium alloy passivating solution is 2.0 ~ 3.5, regulates pH with phosphoric acid or 20% sodium hydroxide solution; Wherein chromic salt is one or more arbitrary proportion mixture of chromium nitrate or chromium sulphate, phosphoric acid salt is one or more the arbitrary proportion mixture in SODIUM PHOSPHATE, MONOBASIC or primary zinc phosphate, molybdate is one or more arbitrary proportion mixing in Sodium orthomolybdate or ammonium molybdate, nitrate is the mixing of one or more arbitrary proportions of SODIUMNITRATE or zinc nitrate, and complexing agent is one or more the arbitrary proportion mixing of tartrate, ethylenediamine tetraacetic acid (EDTA), citric acid, Seignette salt.
Further, described in step a, pretreated concrete steps comprise: aluminum or aluminum alloy workpiece is carried out oil removing, erosion and cleanup acid treatment successively;
Described oil removing operation comprises removes aluminum or aluminum alloy workpiece surface greasy dirt, is specially: basic solution aluminum or aluminum alloy workpiece being placed in 40 DEG C-50 DEG C, dipping 2 ~ 6min with suitable shake; Contain in described basic solution: HN-52620 ~ 40g/L;
Described erosion operation comprises except workpiece surface oxide film, improves workpiece surface active, is specially: by underlying for aluminum or aluminum alloy workpiece room temperature in the weak etching reagent of alkalescence, and dipping 15 ~ 60s, contains in the weak etching reagent of described alkalescence: HN-12030 ~ 40g/L;
Described pickling comprises the dirt removed and remain in matrix surface after corroding process, obtain the surface of even compact, strengthen post-order process bonding force, be specially: acidic solution aluminum or aluminum alloy workpiece being placed in 16 ~ 38 DEG C, dipping 0.5 ~ 2min, contains in described acidic solution: HN-130150 ~ 250mL/L, the vitriol oil (CP level) 65 ~ 75mL/L.
The beneficial effect that the present invention adopts above-mentioned technical solution to reach is:
The invention provides a kind of trivalent chromium solidity to corrosion passivating solution of Al and Alalloy, adopt passivating solution of the present invention aluminum or aluminum alloy workpiece out can form a kind of coloured solidity to corrosion conversion film, be convenient to the observation in production process and operation; Use this passivating solution process aluminum or aluminum alloy workpiece, trivalent chromium and phosphoric acid salt, molybdate hydridization conversion film can be formed at workpiece surface, compared with the trivalent chromium conversion film of the single rete of composition, improve the solidity to corrosion of aluminum or aluminum alloy workpiece.
Accompanying drawing explanation
Fig. 1 is chemical conversion film scanning of scanning electron microscope result figure of the present invention;
Fig. 2 is chemical conversion film power spectrum determinator detected result figure of the present invention.
Embodiment
The present invention relates to a kind of preparation technology of trivalent chromium conversion film of aluminum or aluminum alloy workpiece, it comprises the following steps:
A, oil removing: inserted by aluminum or aluminum alloy workpiece in the alkaline degreaser of 40 DEG C ~ 50 DEG C, flood 2 ~ 6min and with suitable shake, described alkaline degreaser is: HN-52620 ~ 40g/L.
B, erosion: by underlying for aluminum or aluminum alloy workpiece room temperature in the weak etching reagent of alkalescence, dipping 15 ~ 60s, the weak etching reagent of described alkalescence is: HN-12030 ~ 40g/L.
C, pickling: acidic solution aluminum or aluminum alloy workpiece being placed in 16 ~ 38 DEG C, dipping 0.5 ~ 2min, described Acidwash solution is: HN-130150 ~ 250mL/L, the vitriol oil (CP level) 65 ~ 75mL/L.
D, passivation: insert in passivating solution by the aluminum or aluminum alloy workpiece through above-mentioned steps process, flood 3 ~ 10min in 25 DEG C ~ 50 DEG C environment.
Need with deionized water rinsing above after each step, the workpiece after passivation flushing is dry under room temperature pressurized air.
Below in conjunction with specific embodiment, the technical program is explained in detail.
Embodiment 1
Processed by described step a-steps d by aluminum or aluminum alloy workpiece, wherein, the passivating solution composition described in steps d comprises:
Described chromic salt is one or more arbitrary proportion mixture of chromium nitrate or chromium sulphate, preferred chromium nitrate; Described phosphoric acid salt preferably phosphoric acid sodium dihydrogen; The preferred Sodium orthomolybdate of described molybdate; The preferred zinc nitrate of described nitrate; Described complexing agent is one or more the arbitrary proportion mixing of tartrate, ethylenediamine tetraacetic acid (EDTA), citric acid, Seignette salt.
Embodiment 2
Processed by above-mentioned steps by aluminum or aluminum alloy workpiece, wherein, the passivating solution composition described in steps d comprises:
Described chromic salt is one or more arbitrary proportion mixture of chromium nitrate or chromium sulphate, preferred chromium nitrate; Described phosphoric acid salt preferably phosphoric acid sodium dihydrogen; The preferred Sodium orthomolybdate of described molybdate; The preferred SODIUMNITRATE of described nitrate; Described complexing agent is one or more the arbitrary proportion mixing of tartrate, ethylenediamine tetraacetic acid (EDTA), citric acid, Seignette salt.
Embodiment 3
Processed by above-mentioned steps by aluminum or aluminum alloy workpiece, wherein, the passivating solution composition described in steps d comprises:
Described chromic salt is one or more arbitrary proportion mixture of chromium nitrate or chromium sulphate, preferred chromium nitrate; Described phosphoric acid salt preferably phosphoric acid sodium dihydrogen; The preferred Sodium orthomolybdate of described molybdate; The preferred SODIUMNITRATE of described nitrate; Described complexing agent is one or more the arbitrary proportion mixing of tartrate, ethylenediamine tetraacetic acid (EDTA), citric acid, Seignette salt.
Embodiment 4
Processed by above-mentioned steps by aluminum or aluminum alloy workpiece, wherein, the passivating solution composition described in steps d comprises:
Chromic salt 5g/L, phosphoric acid salt 1.5g/L, molybdate 5g/L, nitrate, 3g/L, ammonium bifluoride 0.15g/L, complexing agent 0.1g/L.
Described chromic salt is one or more arbitrary proportion mixture of chromium nitrate or chromium sulphate, preferred chromium nitrate; Described phosphoric acid salt preferably phosphoric acid sodium dihydrogen; The preferred Sodium orthomolybdate of described molybdate; The preferred SODIUMNITRATE of described nitrate; Described complexing agent is one or more the arbitrary proportion mixing of tartrate, ethylenediamine tetraacetic acid (EDTA), citric acid, Seignette salt.
Embodiment 5
Processed by above-mentioned steps by aluminum or aluminum alloy workpiece, wherein, the passivating solution composition described in steps d comprises:
Described chromic salt is one or more arbitrary proportion mixture of chromium nitrate or chromium sulphate, preferred chromium nitrate; Described phosphoric acid salt preferably phosphoric acid sodium dihydrogen; The preferred Sodium orthomolybdate of described molybdate; The preferred SODIUMNITRATE of described nitrate; Described complexing agent is one or more the arbitrary proportion mixing of tartrate, ethylenediamine tetraacetic acid (EDTA), citric acid, Seignette salt.
Below coloured passive film prepared by the invention process is tested.
1, drop experiment
Experimental technique: the corrosion resisting property adopting acid drop experimental technique rough determination passive film: solution formula comprises 6.2gCuS0
45H
2the dense HCl+150mL deionized water of 0+2mL, use drop-burette titration sample surfaces after treatment respectively, titration place can because of Cu
2+penetrate aluminum alloy surface rete and substrate contact generation redox reaction and become red.The time that record titration place sample surfaces is reddened by indigo plant, the time is longer, illustrates that sample solidity to corrosion is better.
2, experimental result: 5s of undressed aluminium alloy resistance to drop time; The passive film resistance to drop time 95s of embodiment 1; The passive film resistance to drop time 90s of embodiment 2; The passive film drop time 120s of embodiment 3; The passive film drop time 135s of embodiment 4; The passive film drop time 200s of embodiment 5.Compared with undressed aluminium alloy, solidity to corrosion obtains raising in various degree.
Fig. 1 is chemical conversion film scanning of scanning electron microscope result figure of the present invention; Fig. 2 is chemical conversion film power spectrum determinator detected result figure of the present invention; Following table 1 is EDAX results in Fig. 2.
Above-described is only the preferred embodiment of the present invention, it should be pointed out that for the person of ordinary skill of the art, and without departing from the concept of the premise of the invention, can also make some distortion and improvement, these all belong to protection scope of the present invention.
Claims (6)
1. a preparation technology for high-efficient aluminium alloy trivalent chromium conversion film, comprises the following steps:
A, pre-treatment is carried out to aluminum or aluminum alloy workpiece surface;
B, the aluminum or aluminum alloy workpiece of step a process is inserted in passivating solution, in 25 DEG C of-50 DEG C of environment, flood 3-10min; The composition of described passivating solution comprises:
The pH of the aluminium alloy passivating solution formed is 2.0 ~ 3.5.
2. the preparation technology of high-efficient aluminium alloy trivalent chromium conversion film according to claim 1, is characterized in that, described aluminium alloy passivating solution regulates pH with phosphoric acid or 20% sodium hydroxide solution; Chromic salt is one or more arbitrary proportion mixture of chromium nitrate or chromium sulphate, phosphoric acid salt is one or more the arbitrary proportion mixture in SODIUM PHOSPHATE, MONOBASIC or primary zinc phosphate, molybdate is one or more arbitrary proportion mixing in Sodium orthomolybdate or ammonium molybdate, nitrate is the mixing of one or more arbitrary proportions of SODIUMNITRATE or zinc nitrate, and complexing agent is one or more the arbitrary proportion mixing of tartrate, ethylenediamine tetraacetic acid (EDTA), citric acid, Seignette salt.
3. the preparation technology of high-efficient aluminium alloy trivalent chromium conversion film according to claim 2, it is characterized in that, described in step a, pretreated concrete steps comprise: aluminum or aluminum alloy workpiece is carried out oil removing, erosion and cleanup acid treatment successively.
4. the preparation technology of high-efficient aluminium alloy trivalent chromium conversion film according to claim 2, it is characterized in that, described oil removing operation comprises removes aluminum or aluminum alloy workpiece surface greasy dirt, be specially: basic solution aluminum or aluminum alloy workpiece being placed in 40 DEG C-50 DEG C, dipping 2 ~ 6min with suitable shake; Contain in described basic solution: HN-52620 ~ 40g/L.
5. the preparation technology of high-efficient aluminium alloy trivalent chromium conversion film according to claim 1, it is characterized in that, described erosion operation comprises except workpiece surface oxide film, be specially: by underlying for aluminum or aluminum alloy workpiece room temperature in the weak etching reagent of alkalescence, dipping 15 ~ 60s, contains in the weak etching reagent of described alkalescence: HN-12030 ~ 40g/L.
6. the preparation technology of high-efficient aluminium alloy trivalent chromium conversion film according to claim 1, it is characterized in that, described pickling comprises the dirt removed and remain in matrix surface after corroding process, be specially: acidic solution aluminum or aluminum alloy workpiece being placed in 16 ~ 38 DEG C, dipping 0.5 ~ 2min, contains in described acidic solution: HN-130150 ~ 250mL/L, the vitriol oil 65 ~ 75mL/L.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106868484A (en) * | 2017-01-20 | 2017-06-20 | 深圳市天合兴五金塑胶有限公司 | High heat conduction aluminum alloy material surface processing method |
| CN107805802A (en) * | 2017-11-20 | 2018-03-16 | 湖南金裕环保科技有限公司 | Normal temperature trivalent chromium colorful passivation liquid, preparation method and its application method |
| WO2019000448A1 (en) * | 2017-06-30 | 2019-01-03 | 深圳市恒兆智科技有限公司 | Stainless steel passivator and method for passivating surface of stainless steel part |
| CN109273657A (en) * | 2018-08-21 | 2019-01-25 | 厦门纬达科技有限公司 | A kind of silver-plated tab of positive aluminium and its manufacture craft of flexible package lithium cell |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006316334A (en) * | 2005-05-16 | 2006-11-24 | Million Kagaku Kk | Non-chromate chemical conversion treatment liquid for aluminum alloy, and aluminum alloy chemical conversion treatment method by the same |
| CN101356300A (en) * | 2006-01-10 | 2009-01-28 | 三井金属矿业株式会社 | Method for chemical conversion treatment of the surface of aluminum material and aluminum material |
| CN102618861A (en) * | 2012-03-16 | 2012-08-01 | 广西民族大学 | Method for preparing trivalent chromium and phosphomolybdiumtungstic acid hybrid film on surface of aluminum alloy and film forming solution for method |
| CN102912338A (en) * | 2012-10-18 | 2013-02-06 | 王宏 | Aluminium alloy trivalent chromium passivation solution as well as preparation method and passivation technology thereof |
-
2015
- 2015-11-25 CN CN201510834462.8A patent/CN105420714A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006316334A (en) * | 2005-05-16 | 2006-11-24 | Million Kagaku Kk | Non-chromate chemical conversion treatment liquid for aluminum alloy, and aluminum alloy chemical conversion treatment method by the same |
| CN101356300A (en) * | 2006-01-10 | 2009-01-28 | 三井金属矿业株式会社 | Method for chemical conversion treatment of the surface of aluminum material and aluminum material |
| CN102618861A (en) * | 2012-03-16 | 2012-08-01 | 广西民族大学 | Method for preparing trivalent chromium and phosphomolybdiumtungstic acid hybrid film on surface of aluminum alloy and film forming solution for method |
| CN102912338A (en) * | 2012-10-18 | 2013-02-06 | 王宏 | Aluminium alloy trivalent chromium passivation solution as well as preparation method and passivation technology thereof |
Non-Patent Citations (6)
| Title |
|---|
| 刘超等: "新型铝合金三价铬复合转化膜工艺研究", 《电镀与涂饰》 * |
| 单忠德等: "《机械装备工业节能减排制造技术》", 30 June 2014, 机械工业出版社 * |
| 彭敬东等: "铝合金铸件三价铬本色钝化工艺", 《铸造》 * |
| 陈启复: "《中国气动工业发展史》", 31 October 2012, 机械工业出版社 * |
| 陈治良: "《现代涂装手册》", 31 January 2010, 化学工业出版社 * |
| 黄旋等: "铝合金三价铬钝化研究进展", 《材料保护》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106868484A (en) * | 2017-01-20 | 2017-06-20 | 深圳市天合兴五金塑胶有限公司 | High heat conduction aluminum alloy material surface processing method |
| WO2019000448A1 (en) * | 2017-06-30 | 2019-01-03 | 深圳市恒兆智科技有限公司 | Stainless steel passivator and method for passivating surface of stainless steel part |
| CN107805802A (en) * | 2017-11-20 | 2018-03-16 | 湖南金裕环保科技有限公司 | Normal temperature trivalent chromium colorful passivation liquid, preparation method and its application method |
| CN109273657A (en) * | 2018-08-21 | 2019-01-25 | 厦门纬达科技有限公司 | A kind of silver-plated tab of positive aluminium and its manufacture craft of flexible package lithium cell |
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