CN107574430A - A kind of silicate bright blue passivation liquid and preparation method thereof - Google Patents
A kind of silicate bright blue passivation liquid and preparation method thereof Download PDFInfo
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- CN107574430A CN107574430A CN201710618017.7A CN201710618017A CN107574430A CN 107574430 A CN107574430 A CN 107574430A CN 201710618017 A CN201710618017 A CN 201710618017A CN 107574430 A CN107574430 A CN 107574430A
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- 238000002161 passivation Methods 0.000 title claims abstract description 46
- 239000007788 liquid Substances 0.000 title claims abstract description 30
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 title claims abstract description 28
- 238000002360 preparation method Methods 0.000 title claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 38
- 229910001868 water Inorganic materials 0.000 claims abstract description 31
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims abstract description 26
- PUZPDOWCWNUUKD-UHFFFAOYSA-M sodium fluoride Chemical compound [F-].[Na+] PUZPDOWCWNUUKD-UHFFFAOYSA-M 0.000 claims abstract description 20
- BJEPYKJPYRNKOW-REOHCLBHSA-N (S)-malic acid Chemical compound OC(=O)[C@@H](O)CC(O)=O BJEPYKJPYRNKOW-REOHCLBHSA-N 0.000 claims abstract description 13
- HTJDQJBWANPRPF-UHFFFAOYSA-N Cyclopropylamine Chemical group NC1CC1 HTJDQJBWANPRPF-UHFFFAOYSA-N 0.000 claims abstract description 13
- BJEPYKJPYRNKOW-UHFFFAOYSA-N alpha-hydroxysuccinic acid Natural products OC(=O)C(O)CC(O)=O BJEPYKJPYRNKOW-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000001630 malic acid Substances 0.000 claims abstract description 13
- 235000011090 malic acid Nutrition 0.000 claims abstract description 13
- 150000003009 phosphonic acids Chemical class 0.000 claims abstract description 13
- 239000004115 Sodium Silicate Substances 0.000 claims abstract description 12
- 235000019795 sodium metasilicate Nutrition 0.000 claims abstract description 12
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910052911 sodium silicate Inorganic materials 0.000 claims abstract description 12
- 239000011775 sodium fluoride Substances 0.000 claims abstract description 10
- 235000013024 sodium fluoride Nutrition 0.000 claims abstract description 10
- 239000002253 acid Substances 0.000 claims abstract description 8
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000005864 Sulphur Substances 0.000 claims abstract description 6
- 239000008367 deionised water Substances 0.000 claims abstract description 6
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 6
- ORVGYTXFUWTWDM-UHFFFAOYSA-N silicic acid;sodium Chemical compound [Na].O[Si](O)(O)O ORVGYTXFUWTWDM-UHFFFAOYSA-N 0.000 claims 1
- 230000007797 corrosion Effects 0.000 abstract description 24
- 238000005260 corrosion Methods 0.000 abstract description 24
- 238000005516 engineering process Methods 0.000 abstract description 12
- 239000002932 luster Substances 0.000 abstract description 6
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 abstract description 4
- 239000011651 chromium Substances 0.000 abstract description 4
- 239000011248 coating agent Substances 0.000 abstract description 4
- 238000000576 coating method Methods 0.000 abstract description 4
- 239000011701 zinc Substances 0.000 abstract description 4
- 229910052725 zinc Inorganic materials 0.000 abstract description 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052804 chromium Inorganic materials 0.000 abstract description 3
- 239000007769 metal material Substances 0.000 abstract description 2
- 239000000203 mixture Substances 0.000 abstract description 2
- 238000004381 surface treatment Methods 0.000 abstract description 2
- 238000010129 solution processing Methods 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 20
- 239000010959 steel Substances 0.000 description 20
- 238000000034 method Methods 0.000 description 16
- 238000012545 processing Methods 0.000 description 11
- 238000009713 electroplating Methods 0.000 description 9
- 239000000463 material Substances 0.000 description 9
- 238000007747 plating Methods 0.000 description 8
- 150000003839 salts Chemical class 0.000 description 7
- 230000008569 process Effects 0.000 description 5
- 238000002791 soaking Methods 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 241001163841 Albugo ipomoeae-panduratae Species 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- 229910000366 copper(II) sulfate Inorganic materials 0.000 description 4
- 230000007935 neutral effect Effects 0.000 description 4
- 239000005416 organic matter Substances 0.000 description 4
- 239000007921 spray Substances 0.000 description 4
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 3
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 3
- 239000004902 Softening Agent Substances 0.000 description 3
- 230000004913 activation Effects 0.000 description 3
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 3
- 239000004327 boric acid Substances 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 3
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 description 3
- 238000003682 fluorination reaction Methods 0.000 description 3
- 238000002203 pretreatment Methods 0.000 description 3
- 229910052708 sodium Inorganic materials 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- 239000011592 zinc chloride Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 231100000053 low toxicity Toxicity 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910017604 nitric acid Inorganic materials 0.000 description 2
- 229910052761 rare earth metal Inorganic materials 0.000 description 2
- -1 rare earth metal salt Chemical class 0.000 description 2
- 150000003608 titanium Chemical class 0.000 description 2
- 206010013786 Dry skin Diseases 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004532 chromating Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000009849 deactivation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000005246 galvanizing Methods 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000000415 inactivating effect Effects 0.000 description 1
- 125000001967 indiganyl group Chemical group [H][In]([H])[*] 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- VLAPMBHFAWRUQP-UHFFFAOYSA-L molybdic acid Chemical class O[Mo](O)(=O)=O VLAPMBHFAWRUQP-UHFFFAOYSA-L 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000001473 noxious effect Effects 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Landscapes
- Chemical Treatment Of Metals (AREA)
Abstract
The present invention discloses a kind of silicate bright blue passivation liquid and preparation method thereof, belongs to technical field of metal material surface treatment.The composition of passivating solution of the present invention is：26 ~ 34g/L of sodium metasilicate, 2 ~ 4g/L of malic acid, 8 ~ 12g/L of sodium fluoride, 9 ~ 14mL/L of hydrogen peroxide, aminotrimethylene fork phosphonic acids 8 ~ 13mL/L, remaining be water, pH value is 3.0 ~ 3.5；The preparation method of the passivating solution is to be added sequentially to be well mixed in deionized water by sodium metasilicate, malic acid, sodium fluoride, aminotrimethylene fork phosphonic acids, hydrogen peroxide, add water constant volume volume needed for, use sulphur acid for adjusting pH value to produce silicate bright blue passivation liquid for 3.0 ~ 3.5.Zinc coating passivating film after passivating solution processing is blue and white, and bright in luster, film forming is uniform, corrosion resisting property is excellent, and trivalent chromium, Cr VI and other harmful substances are free of in passivating solution, environment friendly and pollution-free, passivation technology is simple, and passivation efficiency is high, and membranous layer corrosion resistance is good.
Description
Technical field
The present invention relates to a kind of silicate bright blue passivation liquid and preparation method thereof, category metallic material surface treatment technology neck
Domain.
Background technology
Electrogalvanizing passivation technology is one of the most frequently used steel anti-corrosive technology, is that raising steel resistance to corrosion is very effective
A kind of approach, it is widely used in the various fields such as automobile, electric power, shipbuilding, aviation, machinery, building, hardware, household electrical appliances.In order to carry
The beautiful degree of corrosion resistance and outward appearance of high steel product, will typically be electroplated and Passivation Treatment to it.Bright blue passivation
Outward appearance is brief generous, excellent performance, deep to be favored by market, is always one of most important aftertreatment technology of galvanized part, processing
Light blue, shiny appearance is presented in galvanized part afterwards, can keep galvanized part metal true qualities, improve the corrosion stability of product again, therefore
Bright blue passivation technique is applied to each metal coating industry extensively.
Organic matter passivation corrosion resistance is good in common non-chromium inactivating technique, but adhesive force and heat resistance are poor, single nothing
Machine thing passivation corrosion resistance is slightly worse than organic matter passivation.Composite passivated inorganic and organic matter is inorganic molecule or ion and organic molecule
Between synergistic slow corrosion and performance complement effect, further increase passivating film corrosion resisting property be noted that exclusive use this
Also there are many defects in a little chromium-free deactivation technologies, or corrosion resistance is poor, or outward appearance is bad, or electrically grounded poor performance, or price is higher,
It is extremely difficult to application requirement.
Distinguished by the main salt of film forming, the Chrome-free bright blue passivation system reported at present has silicate systems, wolframic acid salt system, molybdenum
Silicate system, rare earth metal salt system, titanium salt system, organic matter passivation system etc..Existing silicate systems, cost is low, nontoxic,
But passivating solution is unstable, corrosion resistance has much room for improvement；Wolframic acid salt system, cost is high, corrosion-resistant；Molybdic acid salt system has good
The effect for delaying corrosion, low toxicity, but require too high to thicknesses of layers, cost is high；Rare earth metal salt system, low toxicity, stability
It is good, there is preferable corrosion inhibition, but cost is high；Titanium salt system corrosion stability is higher, but cost is high；Organic-compound system corrosion stability
Height, but film forming agent species is more, and passivation technology is more complicated, is passivated high expensive.
The content of the invention
The present invention is in order to overcome the shortcomings of existing silicate passivation solution technology, there is provided a kind of silicate bright blue passivation liquid,
The component of the passivating solution is：26 ~ 34g/L of sodium metasilicate, 2 ~ 4g/L of malic acid, 8 ~ 12g/L of sodium fluoride, 9 ~ 14mL/ of hydrogen peroxide
L, aminotrimethylene fork phosphonic acids 8 ~ 13mL/L, remaining be water, pH value is 3.0 ~ 3.5.
The compound method of silicate bright blue passivation liquid of the present invention is：By sodium metasilicate, malic acid, sodium fluoride, amino trimethylene first
Base fork phosphonic acids, hydrogen peroxide are added sequentially to be well mixed in deionized water, add water constant volume volume needed for, using sulphur acid for adjusting pH
It is worth and produces silicate bright blue passivation liquid for 3.0 ~ 3.5.
The silicate bright blue passivation liquid can be used for the zinc-plated aftertreatment technology of steel and iron parts, be handled using this passivating solution
Zinc coating passivating film afterwards is blue and white, and bright in luster, film forming is uniform, and corrosion resisting property is excellent, and passivation efficiency is high, membranous layer corrosion resistance
It is good.
Sodium metasilicate of the present invention, malic acid, sodium fluoride, aminotrimethylene fork phosphonic acids, hydrogen peroxide are pure for commercially available analysis
Chemical reagent.
The method of processing is passivated to electrogalvanizing and hot dip Zinc material using the silicate bright blue passivation liquid of the present invention is：
By by the material of electrogalvanizing（Conventional method obtains）Cleaned up with water, after carrying out out light processing according to a conventional method, take out material
Material washing, then immerse the material into the silicate bright blue passivation liquid, after soaking 5 ~ 30 seconds at room temperature, take out and cleaned with water
Afterwards, dry.
It is described go out light processing（Conventional method）For：Material after will be zinc-plated is put into by HNO3And H2In the light-emitting solution of O compositions,
After soaking 3 ~ 5 seconds at room temperature, specifically proportioning is for taking-up, wherein light-emitting solution：Mass concentration is 65% HNO3 5~15
ML/L, remaining is H2O。
The cleaning method of the material after zinc-plated, light extraction and passivation is：Running water rinses, or equipped with clean water
Groove in or pond in rinse, until plating piece surface clean is totally advisable.
It is described it is passivated after the drying means of zinc-plating material be：Naturally dry, either dried up with hair-dryer or with perseverance
60 DEG C of constant temperature dryings of incubator.
Water used in each technical process involved in the present invention is running water, or distilled water.
Beneficial effects of the present invention are：
（1）The silicate bright blue passivation liquid of the present invention can be used for the zinc-plated aftertreatment technology of steel and iron parts, be carried out using this passivating solution
Zinc coating passivating film after processing is blue and white, and bright in luster, film forming is uniform, and corrosion resisting property is excellent, and passivation efficiency is high, and film layer is resistance to
Corrosion is good；
（2）Without the noxious material such as chromium in passivating solution of the present invention, overcome that chromating technology toxicity is big, not environmentally etc. lacks
Point, the clean manufacturing of galvanizing production can be achieved；
（3）The passivation process of passivating solution of the present invention is simple, and passivation time is short, and passivation efficiency is high, and film adhesion is strong, film layer
Thickness is uniform；
（4）The passivating film for handling to obtain through passivating solution of the present invention, excellent corrosion resistance, through 5%CuSO4Test, the complete blackening of passivating film
More than 60s, there is the white rust time more than 72 hours through neutral salt spray test in time.
Embodiment
The present invention is described in further detail with reference to embodiment, but protection scope of the present invention and unlimited
In the content.
Embodiment 1：The component of the present embodiment silicate bright blue passivation liquid be the g/L of sodium metasilicate 30, the g/L of malic acid 3, fluorination
The g/L of sodium 9, the mL/L of hydrogen peroxide 9, aminotrimethylene fork phosphonic acids 8mL/L, remaining be water, pH value 3.0；
The compound method of the present embodiment silicate bright blue passivation liquid is：According to said components by sodium metasilicate, malic acid, sodium fluoride,
Aminotrimethylene fork phosphonic acids, hydrogen peroxide are added sequentially to be well mixed in deionized water, add water constant volume volume needed for, use
Sulphur acid for adjusting pH value produces silicate bright blue passivation liquid for 3.0；
The passivating solution that the present embodiment is prepared is used to be passivated plated steel sheet：
（1）The plated steel sheet obtains through following method：40mm*50mm*0.5mm low carbon steel plate is being carried out electroplating it
It is preceding routinely to be derusted, oil removing, after the pre-treatment such as activation, be put into conventional electroplate liquid and carry out electroplating processes, zinc-plated processing work
The plating solution of skill forms and operating condition is：ZnCl270 175 g/L of g/L, KCl, the g/L of boric acid 30, brightener 0.5ml/L,
The ml/L of softening agent 17, the pH value of plating solution are 5.4, and current density is 1.5 A/ dm2, temperature is room temperature, electroplating time 20
Minute, plated steel sheet is obtained, it is standby；
（2）Prepare light-emitting solution：By the pure HNO of chemistry310 mL/L light-emitting solution is configured to water, it is standby；
（3）By step（1）Obtained plated steel sheet immerses step after being cleaned up with running water（2）In obtained light-emitting solution
In, stop 5 seconds, cleaned up after taking-up with running water at room temperature, then immerse in passivating solution, after soaking 15 seconds at room temperature, take out,
Dried up after running water cleans up with hair-dryer；
Steel plate after passivated liquid processing is blue and white, and bright in luster, film forming is uniform, and passivation efficiency is high, and membranous layer corrosion resistance is good, warp
5%CuSO4 is tested, and the passivating film complete blackening time more than 60s, the white rust time occurs more than 96 hours through neutral salt spray test.
Embodiment 2：The component of the present embodiment silicate bright blue passivation liquid be the g/L of sodium metasilicate 34, the g/L of malic acid 4, fluorination
The g/L of sodium 12, the mL/L of hydrogen peroxide 10, aminotrimethylene fork phosphonic acids 13 mL/L, remaining be water, pH value 3.5；
The compound method of the present embodiment silicate bright blue passivation liquid is：According to said components by sodium metasilicate, malic acid, sodium fluoride,
Aminotrimethylene fork phosphonic acids, hydrogen peroxide are added sequentially to be well mixed in deionized water, add water constant volume volume needed for, use
Sulphur acid for adjusting pH value produces silicate bright blue passivation liquid for 3.5；
The passivating solution that the present embodiment is prepared is used to be passivated plated steel sheet：
（1）The plated steel sheet obtains through following method：40mm*50mm*0.5mm low carbon steel plate is being carried out electroplating it
It is preceding routinely to be derusted, oil removing, after the pre-treatment such as activation, be put into conventional electroplate liquid and carry out electroplating processes, zinc-plated processing work
The plating solution of skill forms and operating condition is：ZnCl270 175 g/L of g/L, KCl, the g/L of boric acid 30, brightener 0.5ml/L,
The ml/L of softening agent 17, the pH value of plating solution are 5.6, and current density is 1.5 A/ dm2, temperature is room temperature, electroplating time 20
Minute, plated steel sheet is obtained, it is standby；
（2）Prepare light-emitting solution：By the pure HNO of chemistry35mL/L light-emitting solution is configured to water, it is standby；
（3）By step（1）Obtained plated steel sheet immerses step after being cleaned up with running water（2）In obtained light-emitting solution
In, stop 3 seconds, cleaned up after taking-up with running water at room temperature, then immerse in passivating solution, after soaking 30 seconds at room temperature, take out,
Dried up after running water cleans up with hair-dryer；
Steel plate after passivated liquid processing is blue and white, and bright in luster, film forming is uniform, and passivation efficiency is high, and membranous layer corrosion resistance is good, warp
5%CuSO4 is tested, and the passivating film complete blackening time more than 70s, the white rust time occurs more than 72 hours through neutral salt spray test.
Embodiment 3：The component of the present embodiment silicate bright blue passivation liquid be the g/L of sodium metasilicate 26, malic acid 2g/L, fluorination
The g/L of sodium 8, the mL/L of hydrogen peroxide 14, aminotrimethylene fork phosphonic acids 10mL/L, remaining be water, pH value 3.2；
The compound method of the present embodiment silicate bright blue passivation liquid is：According to said components by sodium metasilicate, malic acid, sodium fluoride,
Aminotrimethylene fork phosphonic acids, hydrogen peroxide are added sequentially to be well mixed in deionized water, add water constant volume volume needed for, use
Sulphur acid for adjusting pH value produces silicate bright blue passivation liquid for 3.2；
The passivating solution that the present embodiment is prepared is used to be passivated plated steel sheet：
（1）The plated steel sheet obtains through following method：40mm*50mm*0.5mm low carbon steel plate is being carried out electroplating it
It is preceding routinely to be derusted, oil removing, after the pre-treatment such as activation, be put into conventional electroplate liquid and carry out electroplating processes, zinc-plated processing work
The plating solution of skill forms and operating condition is：ZnCl270 175 g/L of g/L, KCl, the g/L of boric acid 30, brightener 0.5ml/L,
The ml/L of softening agent 17, the pH value of plating solution are 5.8, and current density is 1.5 A/ dm2, temperature is room temperature, electroplating time 20
Minute, plated steel sheet is obtained, it is standby；
（2）Prepare light-emitting solution：By the pure HNO of chemistry315mL/L light-emitting solution is configured to water, it is standby；
（3）By step（1）Obtained plated steel sheet immerses step after being cleaned up with running water（2）In obtained light-emitting solution
In, stop 4 seconds, cleaned up after taking-up with running water at room temperature, then immerse in passivating solution, after soaking 5 seconds at room temperature, take out,
Dried up after running water cleans up with hair-dryer；
Steel plate after passivated liquid processing is blue and white, and bright in luster, film forming is uniform, and passivation efficiency is high, and membranous layer corrosion resistance is good, warp
5%CuSO4 is tested, and the passivating film complete blackening time more than 60s, the white rust time occurs more than 72 hours through neutral salt spray test.
The embodiment of the present invention is explained in detail above, but the present invention is not limited to above-mentioned embodiment party
Formula, in those of ordinary skill in the art's possessed knowledge, it can also be done on the premise of present inventive concept is not departed from
Go out various change.
Claims (2)
- A kind of 1. silicate bright blue passivation liquid, it is characterised in that：The component of the passivating solution is 26 ~ 34g/L of sodium metasilicate, malic acid 2 ~ 4g/L, 8 ~ 12g/L of sodium fluoride, 9 ~ 14mL/L of hydrogen peroxide, aminotrimethylene fork phosphonic acids 8 ~ 13mL/L, remaining be water, pH It is worth for 3.0 ~ 3.5.
- 2. the preparation method of silicate bright blue passivation liquid described in claim 1, it is characterised in that comprise the following steps that：By silicic acid Sodium, malic acid, sodium fluoride, aminotrimethylene fork phosphonic acids, hydrogen peroxide are added sequentially to be well mixed in deionized water, add water to determine Hold required volume, use sulphur acid for adjusting pH value to produce silicate bright blue passivation liquid for 3.0 ~ 3.5.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108531900A (en) * | 2018-06-13 | 2018-09-14 | 昆明理工大学 | A kind of composite coloured passivating solution of environment-friendly type and preparation method thereof |
| CN110820025A (en) * | 2019-11-15 | 2020-02-21 | 襄阳航林机械有限公司 | Heating infiltration anti-discoloration treatment process for cast aluminum cylinder body |
| CN112795958A (en) * | 2020-12-30 | 2021-05-14 | 山东富海材料科技有限公司 | Colorful passivated galvanized steel sheet and manufacturing method thereof |
| CN113832455A (en) * | 2021-09-24 | 2021-12-24 | 上海电力大学 | Environment-friendly silicate passivation solution for zinc coating and preparation method and application thereof |
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| DE10305449A1 (en) * | 2003-02-11 | 2004-08-26 | Walter Hillebrand Gmbh & Co. | Reaction solution for producing colored passivation film on zinc and its alloys, e.g. on iron or steel, is based on aqueous acid solution containing trivalent chromium ions and contains quinoline dye, preferably quinoline yellow |
| CN103266313A (en) * | 2013-05-30 | 2013-08-28 | 昆明理工大学 | Electro-galvanizing environment-friendly passivation solution and using method thereof |
| CN104342654A (en) * | 2013-07-23 | 2015-02-11 | 无锡市石塘湾工业园区开发建设有限公司 | A black passivation liquid for surfaces of galvanized sheets |
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| CN108531900A (en) * | 2018-06-13 | 2018-09-14 | 昆明理工大学 | A kind of composite coloured passivating solution of environment-friendly type and preparation method thereof |
| CN110820025A (en) * | 2019-11-15 | 2020-02-21 | 襄阳航林机械有限公司 | Heating infiltration anti-discoloration treatment process for cast aluminum cylinder body |
| CN112795958A (en) * | 2020-12-30 | 2021-05-14 | 山东富海材料科技有限公司 | Colorful passivated galvanized steel sheet and manufacturing method thereof |
| CN113832455A (en) * | 2021-09-24 | 2021-12-24 | 上海电力大学 | Environment-friendly silicate passivation solution for zinc coating and preparation method and application thereof |
| CN113832455B (en) * | 2021-09-24 | 2024-02-27 | 上海电力大学 | Environment-friendly silicate passivation solution for zinc coating and preparation method and application thereof |
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