CN103046095A - Electroplated metal antiblushing agent and preparation method and using method thereof - Google Patents
Electroplated metal antiblushing agent and preparation method and using method thereof Download PDFInfo
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- CN103046095A CN103046095A CN201210581162XA CN201210581162A CN103046095A CN 103046095 A CN103046095 A CN 103046095A CN 201210581162X A CN201210581162X A CN 201210581162XA CN 201210581162 A CN201210581162 A CN 201210581162A CN 103046095 A CN103046095 A CN 103046095A
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Abstract
The invention relates to an electroplated metal surface treatment method, in particular to an electroplated metal antiblushing agent and a preparation method and a using method thereof. The electroplated metal antiblushing agent comprises the following components according to the following contents: 1-100g/L of inosilicate, 0.1-10g/L of organosilicate, 0.1-10g/L of fluoride and the balance of deionized water. The electroplated metal antiblushing agent is safe, environment-friendly, good in stability, good in protective effect and low in cost. The using method of the electroplated metal antiblushing agent comprises the following steps of: completely clearing away oil stains, dust and rusts on the surface of electroplated metal; soaking or spraying the electroplated metal by using the electroplated metal antiblushing agent; and baking the electroplated metal at high temperature to form an electroplated metal protecting film. The electroplated metal protecting film formed in the using method is resistant to high temperature, acid mist and corrosion, so that a plating layer is not corroded by environment and thus the stability, the reliability and durability of a metal component is protected; therefore, the electroplated metal antiblushing agent is wide in application prospect.
Description
Technical field
The present invention relates to the surface treatment method of plated metal, be specifically related to a kind of plated metal anti-blushing agent and preparation method thereof and using method.
Background technology
The corrosion of metallic substance refers to when metallic substance contacts with surrounding medium to occur chemistry or electrochemical action and a kind of breakoff phenomenon of causing.Because the corrosion of metallic substance can cause the run, drip, leak of equipment, contaminate environment, even poison, the serious waste of the serious accident such as fire, blast and resource and the energy.Therefore, the mechanism of corrosion of research metallic substance is understood fully the reason that corrosion occurs and is taked effective safeguard procedures, all has very great meaning for extension device life-span, reduction cost, raising productivity.
The anti-corrosion method of metallic substance is a lot; mainly contain the essence of improving metal; protected metal and corrosive medium are separated; or metal carried out surface treatment; improve corrosive environment and electro-chemical protection etc.; the most frequently used method is that electroplating processes is carried out in the metallic surface; plating is to utilize electrolysis principle to plate the process of other metal or alloy of skim in some metallic surface; be to utilize electrolytic action that thereby the technique of the surface attachment layer of metal film of metal or other material product is played to prevent from corrosion from improving wear resistance; electroconductibility; the effect such as reflective and having improved aesthetic appearance.
Electroplating film can prevent corrosion, improves the effects such as wear resistance, electroconductibility, reflective and having improved aesthetic appearance, but the coating of plated metal can be subject to environmental attack after using for some time, variable color can occur, and has a strong impact on its properties.In order to address this problem; prior art adopts after plating is finished usually; again metal plating is processed through electroplating additives; anti-blushing agent is widely used in plated metal as a kind of electroplating additives; by form the protective membrane of one deck densification on the plated metal surface; prevent the plated metal variable color; traditional anti-blushing agent mainly is for aluminium; magnesium; zinc and alloy thereof are protected; mostly the early stage coating that is used for magnalium is chromate composite; but its environmental pollution is larger; some non-chromate coating are succeeded in developing at present, and the anti-blushing agent of magnalium is divided into alloy anti-blushing agent and compound anti-blushing agent two classes.
Application number is that the Chinese invention patent of 200910060265.X discloses a kind of composition that can effectively prevent copper and copper alloy surface variable color, it is characterized in that, it contains main film forming substance, auxiliary film forming matter and solidifying agent at least, this anti-blushing agent contains by weight percentage: 5% ~ 15% main film forming substance, 5% ~ 10% auxiliary film forming matter, 0.1% ~ 0.3% solidifying agent, surplus are water, and main film forming substance is a kind of in sodium silicate, the potash water glass.Auxiliary film forming speciality is lithium silicate, and solidifying agent is Br
2O
3
Application number is 201210118268.6 Chinese invention patent high temperature reflux tin layer anti-blushing agent, it is characterized in that: comprise sodium hydroxide, ethylenediamine tetraacetic acid (EDTA), phosphoric acid and water, its each component concentration is: sodium hydroxide 30 ~ 100g/L, ethylenediamine tetraacetic acid (EDTA) 40 ~ 80g/L, phosphoric acid 30 ~ 120ml/L, all the other are water.
The anti-blushing agent of prior art is only applicable to a kind of plated metal and alloy usually; particularly for the zinc of electroplating or the zinc alloy suitable anti-blushing agent of all not reporting for work; limited its application in some field; and at present most water soluble anti-discoloration agent all adopts emulsifying process to produce; product appearance is emulsus; long meeting storage period layering occurs and separates out; stability of solution descends; affect the metal protection effect; also there are some not environmental protection in the prior art; the high deficiency of operational difficulty and processing cost; therefore, exploitation is a kind of is applicable to various plated metals and protects effective anti-blushing agent to seem particularly important.
Summary of the invention
In order to overcome the shortcoming and defect that exists in the prior art, the object of the present invention is to provide a kind of plated metal anti-blushing agent and preparation method thereof, plated metal anti-blushing agent safety and environmental protection of the present invention, good stability is protected effectively, and cost is low; Preparation method of the present invention is simple to operate, has reduced production cost, is fit to suitability for industrialized production.
Another object of the present invention is to provide a kind of using method of plated metal anti-blushing agent;, acidic fog resistance, corrosion-resistant high temperature resistant by the plated metal protective membrane that the method forms; so that coating is not subjected to environmental attack; thereby stability, reliability and the wearing quality of protection metal components and parts have a extensive future.
Purpose of the present invention is achieved through the following technical solutions: a kind of plated metal anti-blushing agent, and described each component of plated metal anti-blushing agent and content thereof are:
Inorganic silicate 1 ~ 100g/L
Organosilicate 0.1 ~ 10g/L
Fluorochemical 0.1 ~ 10g/L
The deionized water surplus.
Preferably, described inorganic silicate is at least a in potassium silicate, water glass, lithium silicate, ammonium silicate and the silicic acid.
In certain concentration range, the silicate ion of inorganic silicate can not only be removed the interference of metal ion, and is easy to film forming.
Preferably, described organosilicate is the organosilicate shown in the following formula (1):
Wherein, R
1For carbonatoms is that 1 ~ 10 alkyl, thiazolinyl, aromatic base or carbonatoms are 3 ~ 10 cycloalkyl, cycloalkenyl group, M is lithium, sodium, potassium, rubidium, caesium or ammonium, p=1-3, and q=1 ~ (4-p).
More preferred, described organosilicate is at least a in methyl siliconic acid lithium, sodium methyl silicate, potassium methyl silicate, sodium ethylsiliconate, propyl group water glass, dimethyl silicic acid sodium, diethyl water glass, methylethyl water glass, trimethylammonium silicic acid potassium and the trimethylammonium silicic acid sodium.
In certain concentration range, organosilicate is under the effect of water and carbonic acid gas, generate methyl silanol, the further condensation of methyl silanol, form the thick insoluble waterproof macromolecular compound of the several molecules of one deck in the metallic surface, have the advantages such as waterproof, antiseepage, protection against the tide, resistance rust, anti-aging, antipollution.
Preferably, described fluorochemical is at least a in Potassium monofluoride, potassium bifluoride, Sodium Fluoride, sodium hydrogen fluoride, lithium fluoride, fluorine lithium hydride, Neutral ammonium fluoride, ammonium acid fluoride, hydrofluoric acid and the silicofluoric acid.
In certain concentration range, fluorochemical can follow the metal reactions such as aluminium, nickel, magnesium, copper to form fine and close fluorochemical protective membrane.
A kind of preparation method of plated metal anti-blushing agent comprises the steps:
(1) deionized water of adding deionized water total amount 1/2 ~ 2/3 in container under the state that stirs, adds inorganic silicate by proportioning, is stirred to fully dissolving;
(2) under the state that stirs, at the uniform velocity add fluorochemical by proportioning, to fully dissolving, continue to stir 5 ~ 10min;
(3) under the state that stirs, at the uniform velocity add organosilicate by proportioning, 5 ~ 10min is stirred in continuation after finishing;
(4) replenish remaining deionized water, stir, make the plated metal anti-blushing agent.
A kind of using method of plated metal anti-blushing agent comprises the steps:
(1) remove greasy dirt, dust and the corrosion on plated metal surface clean;
(2) use plated metal anti-blushing agent soaks plated metal or sprays;
(3) plated metal after will soaking or spray can form one deck plated metal protective membrane through high bake.
Preferably, in the described step (2), the temperature that anti-blushing agent uses is 20 ~ 40 ℃, and pH is 11 ~ 13, with duration of contact of metal be 2 ~ 4min.
More preferred, in the described step (2), the temperature that anti-blushing agent uses is 30 ℃, and pH is 12, with duration of contact of metal be 3min.
Preferably, in the described step (3), the temperature of high bake is 220 ~ 280 ℃, and storing time is 8 ~ 12min.
More preferred, in the described step (3), the temperature of high bake is 250 ℃, and storing time is 10min.
A kind of plated metal protective membrane of above-mentioned formation, described plated metal protective membrane keep 30min without variable color under 300 ~ 320 ℃ of temperature.
Beneficial effect of the present invention is: plated metal anti-blushing agent of the present invention is owing to contain inorganic silicate, and in certain concentration range, the silicate ion of inorganic silicate can not only be removed the interference of metal ion, and is easy to film forming; Plated metal anti-blushing agent of the present invention is owing to contain organosilicate, in certain concentration range, organosilicate is under the effect of water and carbonic acid gas, generate methyl silanol, the further condensation of methyl silanol, form the thick insoluble waterproof macromolecular compound of the several molecules of one deck in the metallic surface, have the advantages such as waterproof, antiseepage, protection against the tide, resistance rust, anti-aging, antipollution; Plated metal anti-blushing agent of the present invention is owing to contain fluorochemical, and in certain concentration range, fluorochemical can follow the metal reactions such as aluminium, nickel, magnesium, copper to form fine and close fluorochemical protective membrane.
Plated metal anti-blushing agent safety and environmental protection of the present invention, formula material meets environmental requirement fully, does not contain carcinogens six chromium valency (chromic salt) and heavy metals, does not contain hypertoxic potassium ferricyanate; Good stability adopts water as solvent, and solution is fully transparent and be difficult for layering, has good dispersive ability, penetrating power and sealing ability; Protect effectively, the plated metal protective membrane of formation is high temperature resistant, acidic fog resistance, corrosion resistance nature are superior; Cost is low, and plated metal anti-blushing agent of the present invention can recycle, and the filmogen consumption is extremely low, thereby low production cost.Preparation method of the present invention is simple to operate, has reduced production cost, is fit to suitability for industrialized production.
Plated metal anti-blushing agent of the present invention is owing to utilized the advantage of inorganic silicate, organosilicate and fluorochemical, can form the thin and fine and close protective membrane of one deck on the plated metal surface, through high temperature test, the plated metal protective membrane that the present invention forms can keep 30min without variable color under 300 ℃ of temperature, has stronger heat-resisting ability; Through neutral salt spray test, the plated metal protective membrane that the present invention forms can keep 24h without variable color in sodium chloride solution, has stronger salt spray resistance ability; Without variable color, sodium sulphite corrosion test 30min has splendid anti-variable color, anticorrosion ability without variable color to the plated metal protective membrane that the present invention forms at potassium sulphide corrosion test 10min; Plated metal protective membrane that the present invention forms can effectively guarantee stability, reliability and the wearing quality of electronics, electrical element, prolongs its work-ing life, and does not affect its electrically contacting property, weldability; The plated metal protective membrane color and luster that the present invention forms is even, is combined strong adhesion with the metallic surface, has a extensive future.
Embodiment:
For the ease of those skilled in the art's understanding, the present invention is further illustrated below in conjunction with embodiment, and the content that embodiment is mentioned not is limitation of the invention.
Embodiment 1
A kind of plated metal anti-blushing agent and preparation method thereof comprises the steps: in container to add the deionized water of 1/2L, under the state that stirs, adds potassium silicate 1g by proportioning, is stirred to fully dissolving; Under the state that stirs, at the uniform velocity add Potassium monofluoride 0.1g by proportioning, to fully dissolving, continue to stir 5min; Under the state that stirs, at the uniform velocity add potassium methyl silicate 10g by proportioning, 5min is stirred in continuation after finishing; Replenish deionized water to 1L, stir, make the plated metal anti-blushing agent.
A kind of using method of plated metal anti-blushing agent comprises the steps: to remove greasy dirt, dust and the corrosion on plated metal surface clean; Use the plated metal anti-blushing agent that plated metal is soaked, the temperature that anti-blushing agent uses is 20 ℃, and pH is 11, with duration of contact of metal be 2min; Plated metal after soaking can be formed one deck plated metal protective membrane through high bake, and the temperature of high bake is 220 ℃, and storing time is 12min, and the performance test results of the plated metal protective membrane of formation is as shown in table 1.
Embodiment 2
A kind of plated metal anti-blushing agent and preparation method thereof comprises the steps: in container to add the deionized water of 2/3L, under the state that stirs, adds potassium silicate 15g by proportioning, is stirred to fully dissolving; Under the state that stirs, at the uniform velocity add potassium bifluoride 2g by proportioning, to fully dissolving, continue to stir 6min; Under the state that stirs, at the uniform velocity add trimethylammonium silicic acid potassium 8g by proportioning, 6min is stirred in continuation after finishing; Replenish deionized water to 1L, stir, make the plated metal anti-blushing agent.
A kind of using method of plated metal anti-blushing agent comprises the steps: to remove greasy dirt, dust and the corrosion on plated metal surface clean; Use the plated metal anti-blushing agent that plated metal is sprayed, the temperature that anti-blushing agent uses is 30 ℃, and pH is 12, with duration of contact of metal be 3min; Plated metal behind the spray can be formed one deck plated metal protective membrane through high bake, and the temperature of high bake is 230 ℃, and storing time is 12min, and the performance test results of the plated metal protective membrane of formation is as shown in table 1.
Embodiment 3
A kind of plated metal anti-blushing agent and preparation method thereof comprises the steps: in container to add the deionized water of 1/2L, under the state that stirs, adds water glass 30g by proportioning, is stirred to fully dissolving; Under the state that stirs, at the uniform velocity add Sodium Fluoride 3g by proportioning, to fully dissolving, continue to stir 7min; Under the state that stirs, at the uniform velocity add sodium ethylsiliconate 7g by proportioning, 7min is stirred in continuation after finishing; Replenish deionized water to 1L, stir, make the plated metal anti-blushing agent.
A kind of using method of plated metal anti-blushing agent comprises the steps: to remove greasy dirt, dust and the corrosion on plated metal surface clean; Use the plated metal anti-blushing agent that plated metal is soaked, the temperature that anti-blushing agent uses is 40 ℃, and pH is 13, with duration of contact of metal be 4min; Plated metal after soaking can be formed one deck plated metal protective membrane through high bake, and the temperature of high bake is 240 ℃, and storing time is 11min, and the performance test results of the plated metal protective membrane of formation is as shown in table 1.
Embodiment 4
A kind of plated metal anti-blushing agent and preparation method thereof comprises the steps: in container to add the deionized water of 2/3L, under the state that stirs, adds water glass 40g by proportioning, is stirred to fully dissolving; Under the state that stirs, at the uniform velocity add sodium hydrogen fluoride 4g by proportioning, to fully dissolving, continue to stir 8min; Under the state that stirs, at the uniform velocity add methyl siliconic acid lithium 6g by proportioning, 8min is stirred in continuation after finishing; Replenish deionized water to 1L, stir, make the plated metal anti-blushing agent.
A kind of using method of plated metal anti-blushing agent comprises the steps: to remove greasy dirt, dust and the corrosion on plated metal surface clean; Use the plated metal anti-blushing agent that plated metal is sprayed, the temperature that anti-blushing agent uses is 20 ℃, and pH is 11, with duration of contact of metal be 2min; Plated metal behind the spray can be formed one deck plated metal protective membrane through high bake, and the temperature of high bake is 245 ℃, and storing time is 11min, and the performance test results of the plated metal protective membrane of formation is as shown in table 1.
Embodiment 5
A kind of plated metal anti-blushing agent and preparation method thereof comprises the steps: in container to add the deionized water of 1/2L, under the state that stirs, adds lithium silicate 50g by proportioning, is stirred to fully dissolving; Under the state that stirs, at the uniform velocity add lithium fluoride 5g by proportioning, to fully dissolving, continue to stir 9min; Under the state that stirs, at the uniform velocity add sodium methyl silicate 5g by proportioning, 9min is stirred in continuation after finishing; Replenish deionized water to 1L, stir, make the plated metal anti-blushing agent.
A kind of using method of plated metal anti-blushing agent comprises the steps: to remove greasy dirt, dust and the corrosion on plated metal surface clean; Use the plated metal anti-blushing agent that plated metal is soaked, 30 ℃ of the temperature that anti-blushing agent uses, pH is 12, with duration of contact of metal be 3min; Plated metal after soaking can be formed one deck plated metal protective membrane through high bake, and the temperature of high bake is 250 ℃, and storing time is 10min, and the performance test results of the plated metal protective membrane of formation is as shown in table 1.
Embodiment 6
A kind of plated metal anti-blushing agent and preparation method thereof comprises the steps: in container to add the deionized water of 2/3L, under the state that stirs, adds lithium silicate 60g by proportioning, is stirred to fully dissolving; Under the state that stirs, at the uniform velocity add fluorine lithium hydride 6g by proportioning, to fully dissolving, continue to stir 10min; Under the state that stirs, at the uniform velocity add propyl group water glass 4g by proportioning, 10min is stirred in continuation after finishing; Replenish deionized water to 1L, stir, make the plated metal anti-blushing agent.
A kind of using method of plated metal anti-blushing agent comprises the steps: to remove greasy dirt, dust and the corrosion on plated metal surface clean; Use the plated metal anti-blushing agent that plated metal is sprayed, the temperature that anti-blushing agent uses is 40 ℃, and pH is 13, with duration of contact of metal be 4min; Plated metal behind the spray can be formed one deck plated metal protective membrane through high bake, and the temperature of high bake is 255 ℃, and storing time is 10min, and the performance test results of the plated metal protective membrane of formation is as shown in table 1.
Embodiment 7
A kind of plated metal anti-blushing agent and preparation method thereof comprises the steps: in container to add the deionized water of 1/2L, under the state that stirs, adds ammonium silicate 70g by proportioning, is stirred to fully dissolving; Under the state that stirs, at the uniform velocity add Neutral ammonium fluoride 7g by proportioning, to fully dissolving, continue to stir 6min; Under the state that stirs, at the uniform velocity add dimethyl silicic acid sodium 3g by proportioning, 6min is stirred in continuation after finishing; Replenish deionized water to 1L, stir, make the plated metal anti-blushing agent.
A kind of using method of plated metal anti-blushing agent comprises the steps: to remove greasy dirt, dust and the corrosion on plated metal surface clean; Use the plated metal anti-blushing agent that plated metal is soaked, the temperature that anti-blushing agent uses is 20 ℃, and pH is 11, with duration of contact of metal be 2min; After the plated metal water cleaning after soaking, can form one deck plated metal protective membrane through high bake, the temperature of high bake is 260 ℃, and storing time is 9min, and the performance test results of the plated metal protective membrane of formation is as shown in table 1.
Embodiment 8
A kind of plated metal anti-blushing agent and preparation method thereof comprises the steps: in container to add the deionized water of 2/3L, under the state that stirs, adds ammonium silicate 80g by proportioning, is stirred to fully dissolving; Under the state that stirs, at the uniform velocity add ammonium acid fluoride 8g by proportioning, to fully dissolving, continue to stir 7min; Under the state that stirs, at the uniform velocity add diethyl water glass 2g by proportioning, 7min is stirred in continuation after finishing; Replenish deionized water to 1L, stir, make the plated metal anti-blushing agent.
A kind of using method of plated metal anti-blushing agent comprises the steps: to remove greasy dirt, dust and the corrosion on plated metal surface clean; Use the plated metal anti-blushing agent that plated metal is sprayed, the temperature that anti-blushing agent uses is 25 ℃, and pH is 12, with duration of contact of metal be 3min; Plated metal behind the spray can be formed one deck plated metal protective membrane through high bake, and the temperature of high bake is 265 ℃, and storing time is 9min, and the performance test results of the plated metal protective membrane of formation is as shown in table 1.
Embodiment 9
A kind of plated metal anti-blushing agent and preparation method thereof comprises the steps: in container to add the deionized water of 1/2L, under the state that stirs, adds silicic acid 90g by proportioning, is stirred to fully dissolving; Under the state that stirs, at the uniform velocity add hydrofluoric acid 9g by proportioning, to fully dissolving, continue to stir 8min; Under the state that stirs, at the uniform velocity add methylethyl water glass 1g by proportioning, 8min is stirred in continuation after finishing; Replenish deionized water to 1L, stir, make the plated metal anti-blushing agent.
A kind of using method of plated metal anti-blushing agent comprises the steps: to remove greasy dirt, dust and the corrosion on plated metal surface clean; Use the plated metal anti-blushing agent that plated metal is soaked, the temperature that anti-blushing agent uses is 30 ℃, and pH is 13, with duration of contact of metal be 4min; Plated metal after soaking can be formed one deck plated metal protective membrane through high bake, and the temperature of high bake is 270 ℃, and storing time is 8min, and the performance test results of the plated metal protective membrane of formation is as shown in table 1.
Embodiment 10
A kind of plated metal anti-blushing agent and preparation method thereof comprises the steps: in container to add the deionized water of 2/3L, under the state that stirs, adds silicic acid 100g by proportioning, is stirred to fully dissolving; Under the state that stirs, at the uniform velocity add silicofluoric acid 10g by proportioning, to fully dissolving, continue to stir 9min; Under the state that stirs, at the uniform velocity add trimethylammonium silicic acid sodium 0.1g by proportioning, 9min is stirred in continuation after finishing; Replenish deionized water to 1L, stir, make the plated metal anti-blushing agent.
A kind of using method of plated metal anti-blushing agent comprises the steps: to remove greasy dirt, dust and the corrosion on plated metal surface clean; Use the plated metal anti-blushing agent that plated metal is sprayed, the temperature that anti-blushing agent uses is 35 ℃, and pH is 12, with duration of contact of metal be 3min; Plated metal behind the spray can be formed one deck plated metal protective membrane through high bake, and the temperature of high bake is 280 ℃, and storing time is 8min, and the performance test results of the plated metal protective membrane of formation is as shown in table 1.
The performance test methods of the plated metal protective membrane that present embodiment 1 ~ 10 forms is: high temperature test is undertaken by standard GB/T 2423.2-2001; neutral acid mist test is undertaken by standard GB/T/T2423.18-2000; it is that 5% potassium sulfide solution is tested that the potassium sulphide corrosion test adopts massfraction, and it is that 5% sodium sulfide solution is tested that the sodium sulphite corrosion test adopts massfraction.The performance test results of the plated metal protective membrane that present embodiment 1 ~ 10 forms is as shown in table 1:
The performance test results of the plated metal protective membrane that table 1 embodiment 1 ~ 10 forms
Plated metal anti-blushing agent of the present invention is owing to utilized the advantage of inorganic silicate, organosilicate and fluorochemical, can form the thin and fine and close protective membrane of one deck on the plated metal surface, through high temperature test, the plated metal protective membrane that the present invention forms can keep 30min without variable color under 300 ℃ of temperature, has stronger heat-resisting ability; Through neutral salt spray test, the plated metal protective membrane that the present invention forms can keep 24h without variable color in sodium chloride solution, has stronger salt spray resistance ability; Without variable color, sodium sulphite corrosion test 30min has splendid anti-variable color, anticorrosion ability without variable color to the plated metal protective membrane that the present invention forms at potassium sulphide corrosion test 10min; Plated metal protective membrane that the present invention forms can effectively guarantee stability, reliability and the wearing quality of electronics, electrical element, prolongs its work-ing life, and does not affect its electrically contacting property, weldability; The plated metal protective membrane color and luster that the present invention forms is even, is combined strong adhesion with the metallic surface, has a extensive future.
Above-described embodiment is the better implementation of the present invention, and in addition, the present invention can also realize that any apparent replacement is all within protection scope of the present invention without departing from the inventive concept of the premise by alternate manner.
Claims (10)
1. plated metal anti-blushing agent, it is characterized in that: described each component of plated metal anti-blushing agent and content thereof are:
Inorganic silicate 1 ~ 100g/L
Organosilicate 0.1 ~ 10g/L
Fluorochemical 0.1 ~ 10g/L
The deionized water surplus.
2. a kind of plated metal anti-blushing agent according to claim 1 is characterized in that: described inorganic silicate is at least a in potassium silicate, water glass, lithium silicate, ammonium silicate and the silicic acid.
3. a kind of plated metal anti-blushing agent according to claim 1, it is characterized in that: described organosilicate is the organosilicate shown in the following formula (1):
Wherein, R
1For carbonatoms is that 1 ~ 10 alkyl, thiazolinyl, aromatic base or carbonatoms are 3 ~ 10 cycloalkyl, cycloalkenyl group, M is lithium, sodium, potassium, rubidium, caesium or ammonium, p=1 ~ 3, and q=1 ~ (4-p).
4. a kind of plated metal anti-blushing agent according to claim 3 is characterized in that: described organosilicate is at least a in methyl siliconic acid lithium, sodium methyl silicate, potassium methyl silicate, sodium ethylsiliconate, propyl group water glass, dimethyl silicic acid sodium, diethyl water glass, methylethyl water glass, trimethylammonium silicic acid potassium and the trimethylammonium silicic acid sodium.
5. a kind of plated metal anti-blushing agent according to claim 1 is characterized in that: described fluorochemical is at least a in Potassium monofluoride, potassium bifluoride, Sodium Fluoride, sodium hydrogen fluoride, lithium fluoride, fluorine lithium hydride, Neutral ammonium fluoride, ammonium acid fluoride, hydrofluoric acid and the silicofluoric acid.
6. the preparation method of each described a kind of plated metal anti-blushing agent of claim 1 ~ 5 is characterized in that: comprise the steps:
(1) deionized water of adding deionized water total amount 1/2 ~ 2/3 in container under the state that stirs, adds inorganic silicate by proportioning, is stirred to fully dissolving;
(2) under the state that stirs, at the uniform velocity add fluorochemical by proportioning, to fully dissolving, continue to stir 5 ~ 10min;
(3) under the state that stirs, at the uniform velocity add organosilicate by proportioning, 5 ~ 10min is stirred in continuation after finishing;
(4) replenish remaining deionized water, stir, make the plated metal anti-blushing agent.
7. the using method of each described a kind of plated metal anti-blushing agent of claim 1 ~ 5 is characterized in that: comprise the steps:
(1) remove greasy dirt, dust and the corrosion on plated metal surface clean;
(2) use plated metal anti-blushing agent soaks plated metal or sprays;
(3) plated metal after will soaking or spray can form one deck plated metal protective membrane through high bake.
8. the using method of a kind of plated metal anti-blushing agent according to claim 7 is characterized in that: in the described step (2), the temperature that anti-blushing agent uses is 20 ~ 40 ℃, and pH is 11 ~ 13, with duration of contact of metal be 2 ~ 4min.
9. the using method of a kind of plated metal anti-blushing agent according to claim 7, it is characterized in that: in the described step (3), the temperature of high bake is 220 ~ 280 ℃, and storing time is 8 ~ 12min.
10. the plated metal protective membrane that forms of a claim 7, it is characterized in that: described plated metal protective membrane keeps 30min without variable color under 300 ~ 320 ℃ of temperature.
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