CN108690979A - A kind of hot-dip galvanizing sheet steel passivator and preparation method - Google Patents
A kind of hot-dip galvanizing sheet steel passivator and preparation method Download PDFInfo
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- CN108690979A CN108690979A CN201710230654.7A CN201710230654A CN108690979A CN 108690979 A CN108690979 A CN 108690979A CN 201710230654 A CN201710230654 A CN 201710230654A CN 108690979 A CN108690979 A CN 108690979A
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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
- C23C22/46—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 oxalates
- C23C22/47—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 oxalates containing also phosphates
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- Chemical Treatment Of Metals (AREA)
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Abstract
The invention discloses a kind of hot-dip galvanizing sheet steel passivator, include the raw material of following parts by weight:25~48 parts of trivalent chromium compounds, 12~24 parts of sodium hypophosphite, 8~18 parts of sodium sulphate, 6~10 parts of prodan, 18~25 parts of cobalt chloride, 10~15 parts of boric acid, 20~30 parts of organic carboxyl acid, 1~3 part of neopelex, 10~20 parts of glycerine, 40~60 parts of deionized water.A kind of hot-dip galvanizing sheet steel passivator proposed by the present invention, with good stability and dispersing uniformity are used for the passivation of hot-dip galvanizing sheet steel, application method, passivation efficiency is high, and gained binding force of passive film is strong, surface is smooth, compactness is good, and thickness is up to 5~12mg/m2, hardness is high, and wearability is strong, and preparation method is simple, theory that is environmentally protective, meeting national security environmental protection, is put into without large scale equipment, and manufacturing cost is low, is suitble to industrialized production, is worthy to be popularized.
Description
Technical field
The present invention relates to matal deactivator technical field more particularly to a kind of hot-dip galvanizing sheet steel passivator and preparation sides
Method.
Background technology
Steel is as the maximum metal material of dosage in daily production, and but there is the defect being easily corroded, this defects
Great economic loss is brought to manufacturer, it is also notable to reduce the performance of steel building and product and shorten
Its service life.It is zinc-plated in steel and other metallic surfaces with the fast development of modernization industry, to improve steel and
The corrosion resistance of metal material has obtained extensive concern.Hot-dip galvanizing sheet steel be widely used to building materials, aviation, automobile, family
The different fields such as electricity are most fast one of the rolling shapes of China's increase of production in recent years.
The Cr VI passivation technology of hot-dip galvanizing sheet steel is traditionally used for mature and stable, cheap, numerous in variety, high
Corrosion resistance and passivating film self-reparing capability the advantages that be widely used.But since Cr VI has higher toxicity,
Belonging to strong carcinogen can cause to seriously endanger in the production and use process to environment with health.Therefore, sexavalence
The use of chromium and discharge capacity receive the limitation of environmental regulation.In chromium compounds, only the performance of trivalent chromium and Cr VI is the most
Stablize, and trivalent chromium low toxicity, meets environmental regulation limit standard.However, trivalent chromium passivator in the prior art is due to formula
The defects of with the limitation of technique, it is big that there are consumptions, and passivation efficiency is low, gained passivating film compactness and not up to standard equal hardness.
Based on above statement, the present invention proposes a kind of hot-dip galvanizing sheet steel passivator and preparation method.
Invention content
The purpose of the present invention is to solve disadvantage existing in the prior art, and a kind of hot-dip galvanizing sheet steel proposed is with blunt
Agent and preparation method.
A kind of hot-dip galvanizing sheet steel passivator, includes the raw material of following parts by weight:25~48 parts of trivalent chromium compounds, hypophosphorous acid
12~24 parts of sodium, 8~18 parts of sodium sulphate, 6~10 parts of prodan, 18~25 parts of cobalt chloride, 10~15 parts of boric acid, organic carboxyl acid
20~30 parts, 1~3 part of neopelex, 10~20 parts of glycerine, 40~60 parts of deionized water.
Preferably, a kind of hot-dip galvanizing sheet steel passivator, includes the raw material of following parts by weight:Trivalent chromium compounds 28
~45 parts, 15~20 parts of sodium hypophosphite, 10~16 parts of sodium sulphate, prodan 7~9
Part, 20~24 parts of cobalt chloride, 11~14 parts of boric acid, 22~28 parts of organic carboxyl acid, neopelex 1.5~
2.5 parts, 12~18 parts of glycerine, 45~55 parts of deionized water.
Preferably, a kind of hot-dip galvanizing sheet steel passivator, includes the raw material of following parts by weight:Trivalent chromium compounds 35
Part, 18 parts of sodium hypophosphite, 12 parts of sodium sulphate, 8 parts of prodan, 22 parts of cobalt chloride, 12 parts of boric acid, 25 parts of organic carboxyl acid, 12
2 parts of sodium alkyl benzene sulfonate, 15 parts of glycerine, 50 parts of deionized water.
Preferably, it is 1~1.8 that the trivalent complex compound, which is mass ratio,:2~3:0.8~1.2 chromium chloride, chromic nitrate and
The mixture of potassium bichromate.
Preferably, it is 2~5 that the organic carboxyl acid, which is mass ratio,:1~1.5:1 ethanedioic acid, 2- dimethyl succinic acids and the last of the ten Heavenly stems two
The mixture of acid anhydrides.
The invention also provides a kind of preparation methods of hot-dip galvanizing sheet steel passivator, include the following steps:
S1, trivalent chromium compounds, sodium hypophosphite, sodium nitrate and the cobalt chloride of the proportion are add to deionized water,
In the environment of 80~110 DEG C, it is stirred 20~30min, dissolves to obtain mixed liquor A;
S2, the prodan, boric acid and organic carboxyl acid of the proportion are added in blender jointly, stirring at normal temperature mixing
20~30min dissolves to obtain mixed liquid B;
S3, the mixed liquid B of gained in the mixed liquor A of gained in step S1 and step S2 is added in grinder jointly,
The glycerine of the proportion is added, is fully ground 3 times, grinds 7~10min every time, obtain lapping liquid C;
S4, gained lapping liquid C and neopelex in step S3 are added in dispersion machine jointly, dispersion mixing
1~2h is to get required hot-dip galvanizing sheet steel passivator.
A kind of hot-dip galvanizing sheet steel passivator proposed by the present invention, with good stability and dispersing uniformity are used
In the passivation of hot-dip galvanizing sheet steel, application method, passivation efficiency is high, and gained binding force of passive film is strong, surface is smooth, compactness is good,
Thickness is up to 5~12mg/m2, hardness is high, and wearability is strong, and compared with the prior art, the present invention, which uses, meets environmental protection restriction
Trivalent chromium compound is primary raw material, is entirely free of hexavalent chromium compound, theory that is environmentally protective, meeting national security environmental protection,
Preparation method is simple, is put into without large scale equipment, and manufacturing cost is low, is suitble to industrialized production, is worthy to be popularized.
Specific implementation mode
The present invention is made further to explain with reference to specific embodiment.
Embodiment one
A kind of hot-dip galvanizing sheet steel passivator proposed by the present invention, includes the raw material of following parts by weight:Trivalent chromium compounds 28
Part, 15 parts of sodium hypophosphite, 10 parts of sodium sulphate, 8 parts of prodan, 18 parts of cobalt chloride, 10 parts of boric acid, 22 parts of organic carboxyl acid, 12
1 part of sodium alkyl benzene sulfonate, 12 parts of glycerine, 40 parts of deionized water, wherein trivalent complex compound is that mass ratio is 1.2:2:0.8
The mixture of chromium chloride, chromic nitrate and potassium bichromate;Organic carboxyl acid is that mass ratio is 3:1.2:1 ethanedioic acid, 2- methyl fourth two
The mixture of acid and sebacic anhydride.
Preparation method includes the following steps:
S1, trivalent chromium compounds, sodium hypophosphite, sodium nitrate and the cobalt chloride of the proportion are add to deionized water,
In the environment of 85 DEG C, it is stirred 30min, dissolves to obtain mixed liquor A;
S2, the prodan, boric acid and organic carboxyl acid of the proportion are added in blender jointly, stirring at normal temperature mixing
30min dissolves to obtain mixed liquid B;
S3, the mixed liquid B of gained in the mixed liquor A of gained in step S1 and step S2 is added in grinder jointly,
The glycerine of the proportion is added, is fully ground 3 times, grinds 8min every time, obtain lapping liquid C;
S4, gained lapping liquid C and neopelex in step S3 are added in dispersion machine jointly, dispersion mixing
1h is to get required hot-dip galvanizing sheet steel passivator.
Embodiment two
A kind of hot-dip galvanizing sheet steel passivator proposed by the present invention, includes the raw material of following parts by weight:Trivalent chromium compounds 45
Part, 22 parts of sodium hypophosphite, 16 parts of sodium sulphate, 10 parts of prodan, 25 parts of cobalt chloride, 14 parts of boric acid, 28 parts of organic carboxyl acid, 12
3 parts of sodium alkyl benzene sulfonate, 20 parts of glycerine, 55 parts of deionized water, wherein trivalent complex compound is that mass ratio is 1.6:2.8:1
The mixture of chromium chloride, chromic nitrate and potassium bichromate;Organic carboxyl acid is that mass ratio is 4:1.5:1 ethanedioic acid, 2- methyl fourth two
The mixture of acid and sebacic anhydride.
Preparation method includes the following steps:
S1, trivalent chromium compounds, sodium hypophosphite, sodium nitrate and the cobalt chloride of the proportion are add to deionized water,
In the environment of 105 DEG C, it is stirred 20min, dissolves to obtain mixed liquor A;
S2, the prodan, boric acid and organic carboxyl acid of the proportion are added in blender jointly, stirring at normal temperature mixing
20min dissolves to obtain mixed liquid B;
S3, the mixed liquid B of gained in the mixed liquor A of gained in step S1 and step S2 is added in grinder jointly,
The glycerine of the proportion is added, is fully ground 3 times, grinds 10min every time, obtain lapping liquid C;
S4, gained lapping liquid C and neopelex in step S3 are added in dispersion machine jointly, dispersion mixing
2h is to get required hot-dip galvanizing sheet steel passivator.
Embodiment three
A kind of hot-dip galvanizing sheet steel passivator proposed by the present invention, includes the raw material of following parts by weight:Trivalent chromium compounds 32
Part, 18 parts of sodium hypophosphite, 12 parts of sodium sulphate, 9 parts of prodan, 22 parts of cobalt chloride, 12 parts of boric acid, 25 parts of organic carboxyl acid, 12
2 parts of sodium alkyl benzene sulfonate, 15 parts of glycerine, 48 parts of deionized water, wherein trivalent complex compound is that mass ratio is 1.4:2.2:1
The mixture of chromium chloride, chromic nitrate and potassium bichromate;Organic carboxyl acid is that mass ratio is 4:1.4:1 ethanedioic acid, 2- methyl fourth two
The mixture of acid and sebacic anhydride.
Preparation method includes the following steps:
S1, trivalent chromium compounds, sodium hypophosphite, sodium nitrate and the cobalt chloride of the proportion are add to deionized water,
In the environment of 95 DEG C, it is stirred 25min, dissolves to obtain mixed liquor A;
S2, the prodan, boric acid and organic carboxyl acid of the proportion are added in blender jointly, stirring at normal temperature mixing
25min dissolves to obtain mixed liquid B;
S3, the mixed liquid B of gained in the mixed liquor A of gained in step S1 and step S2 is added in grinder jointly,
The glycerine of the proportion is added, is fully ground 3 times, grinds 8min every time, obtain lapping liquid C;
S4, gained lapping liquid C and neopelex in step S3 are added in dispersion machine jointly, dispersion mixing
1.5h is to get required hot-dip galvanizing sheet steel passivator.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Any one skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (6)
1. a kind of hot-dip galvanizing sheet steel passivator, which is characterized in that include the raw material of following parts by weight:Trivalent chromium compounds 25~48
Part, 12~24 parts of sodium hypophosphite, 8~18 parts of sodium sulphate, 6~10 parts of prodan, 18~25 parts of cobalt chloride, boric acid 10~15
Part, 20~30 parts of organic carboxyl acid, 1~3 part of neopelex, 10~20 parts of glycerine, 40~60 parts of deionized water.
2. a kind of hot-dip galvanizing sheet steel passivator according to claim 1, which is characterized in that include the original of following parts by weight
Material:28~45 parts of trivalent chromium compounds, 15~20 parts of sodium hypophosphite, 10~16 parts of sodium sulphate, 7~9 parts of prodan, cobalt chloride 20
~24 parts, 11~14 parts of boric acid, 22~28 parts of organic carboxyl acid, 1.5~2.5 parts of neopelex, glycerine 12~18
Part, 45~55 parts of deionized water.
3. a kind of hot-dip galvanizing sheet steel passivator according to claim 1, which is characterized in that include the original of following parts by weight
Material:35 parts of trivalent chromium compounds, 12 parts of sodium sulphate, 8 parts of prodan, 22 parts of cobalt chloride, 12 parts of boric acid, have 18 parts of sodium hypophosphite
25 parts of machine carboxylic acid, 2 parts of neopelex, 15 parts of glycerine, 50 parts of deionized water.
4. a kind of hot-dip galvanizing sheet steel passivator according to claim 1, which is characterized in that the trivalent complex compound is matter
Amount is than being 1~1.8:2~3:0.8~1.2 chromium chloride, the mixture of chromic nitrate and potassium bichromate.
5. a kind of hot-dip galvanizing sheet steel passivator according to claim 1, which is characterized in that the organic carboxyl acid is quality
Than being 2~5:1~1.5:1 ethanedioic acid, the mixture of 2- dimethyl succinic acids and sebacic anhydride.
6. a kind of preparation method of hot-dip galvanizing sheet steel passivator according to any one of claim 1-5, feature
It is, includes the following steps:
S1, trivalent chromium compounds, sodium hypophosphite, sodium nitrate and the cobalt chloride of the proportion are add to deionized water, 80~
In the environment of 110 DEG C, it is stirred 20~30min, dissolves to obtain mixed liquor A;
S2, the prodan, boric acid and organic carboxyl acid of the proportion are added in blender jointly, stirring at normal temperature mixing 20~
30min dissolves to obtain mixed liquid B;
S3, the mixed liquid B of gained in the mixed liquor A of gained in step S1 and step S2 is added in grinder jointly, is added
The glycerine of the proportion is fully ground 3 times, grinds 7~10min every time, obtain lapping liquid C;
S4, gained lapping liquid C and neopelex in step S3 are added in dispersion machine jointly, dispersion mixing 1~
2h is to get required hot-dip galvanizing sheet steel passivator.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710230654.7A CN108690979A (en) | 2017-04-11 | 2017-04-11 | A kind of hot-dip galvanizing sheet steel passivator and preparation method |
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| CN201710230654.7A CN108690979A (en) | 2017-04-11 | 2017-04-11 | A kind of hot-dip galvanizing sheet steel passivator and preparation method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110699681A (en) * | 2019-10-24 | 2020-01-17 | 河南北方红阳机电有限公司 | Spraying phosphating process for high-strength steel and hard aluminum alloy combination |
| CN111101122A (en) * | 2020-02-19 | 2020-05-05 | 广州三孚新材料科技股份有限公司 | Electrogalvanizing black passivation solution and preparation method thereof |
| CN111304570A (en) * | 2020-04-26 | 2020-06-19 | 徐州瑞马科宝金属制品有限公司 | Hot galvanizing production process with high automation degree |
| CN112827784A (en) * | 2021-01-07 | 2021-05-25 | 林丽平 | Method for improving adhesion between powder coating and base material |
-
2017
- 2017-04-11 CN CN201710230654.7A patent/CN108690979A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110699681A (en) * | 2019-10-24 | 2020-01-17 | 河南北方红阳机电有限公司 | Spraying phosphating process for high-strength steel and hard aluminum alloy combination |
| CN110699681B (en) * | 2019-10-24 | 2021-12-14 | 河南北方红阳机电有限公司 | Spraying phosphating process for high-strength steel and hard aluminum alloy combination |
| CN111101122A (en) * | 2020-02-19 | 2020-05-05 | 广州三孚新材料科技股份有限公司 | Electrogalvanizing black passivation solution and preparation method thereof |
| CN111304570A (en) * | 2020-04-26 | 2020-06-19 | 徐州瑞马科宝金属制品有限公司 | Hot galvanizing production process with high automation degree |
| CN112827784A (en) * | 2021-01-07 | 2021-05-25 | 林丽平 | Method for improving adhesion between powder coating and base material |
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