CN110809637A - Three-in-one passivator for oil removal, rust removal and passivation, steel part and passivation treatment method thereof - Google Patents
Three-in-one passivator for oil removal, rust removal and passivation, steel part and passivation treatment method thereof Download PDFInfo
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- CN110809637A CN110809637A CN201780092833.7A CN201780092833A CN110809637A CN 110809637 A CN110809637 A CN 110809637A CN 201780092833 A CN201780092833 A CN 201780092833A CN 110809637 A CN110809637 A CN 110809637A
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- parts
- passivation
- rust
- passivator
- oil
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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
- C23C22/07—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing phosphates
- C23C22/23—Condensed phosphates
-
- 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
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
- C23G1/08—Iron or steel
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
- C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
- C23C22/07—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing phosphates
-
- 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
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
Abstract
A three-in-one passivator for oil removal, rust removal and passivation, a steel part and a passivation treatment method thereof. The three-in-one passivator for oil removal, rust removal and passivation is used for surface pretreatment of steel parts and comprises the following components in parts by weight in 2000 parts: 50-100 parts of phosphoric acid, 5-20 parts of phytic acid, 2-6 parts of alkyl polyoxyethylene ether, 20-40 parts of zinc oxide, 5-30 parts of aluminum tripolyphosphate, 1-5 parts of thiourea, 1-5 parts of hexamethylenetetramine and the balance of water. The three-in-one passivator for oil removal, rust removal and passivation can simultaneously remove oil stains and rust stains, and a formed passivation layer is fine in structure, firm in adhesive force, capable of passivating the steel surface, and good in corrosion resistance.
Description
Three-in-one passivator for oil removal, rust removal and passivation, steel part and passivation treatment method thereof
[0001] The invention relates to the technical field of steel surface treatment, in particular to a three-in-one passivator for oil removal, rust removal and passivation
Steel and iron pieces and a surface oil removing, rust removing and passivating treatment method thereof.
Background
[0002] In order to improve the surface properties or appearance of the product, the surface of the workpiece is usually treated. For example, surface treatment processes for aluminum, steel and their alloys are in great use in various industries. Moreover, most of the works require pretreatment before surface treatment, such as cleaning, decontamination and degreasing, and some steel parts require passivation.
[0003] The passivation treatment generally adopts a passivating agent to pretreat the steel piece so as to form a passivation layer on the surface of the steel piece, so as to increase the corrosion resistance of the workpiece. For example, the prior passivation treatment needs to carry out treatments such as oil removal and rust removal on steel pieces, the use is very complicated and troublesome, the energy consumption is high, a plurality of treatment tanks are needed, and long technical problems are needed during the treatment
[0004] In view of the above, the three-in-one passivation method is simple and convenient to use, can perform oil removal, rust removal and passivation at one time, and saves time and energy consumption. The passivation layer has a delicate structure and strong corrosion resistance, and the steel part surface passivation method and the steel part prepared by passivation treatment.
Solution to the problem
Technical solution
[0005] A three-in-one passivator for oil removal, rust removal and passivation is used for forming passivation on the surface of a steel part, and comprises the following components in parts by weight, wherein the components in parts by weight are as follows: 50-100 parts of phosphoric acid, 5-20 parts of phytic acid, 2-6 parts of alkyl polyoxyethylene ether, 20-40 parts of zinc oxide, 5-30 parts of aluminum tripolyphosphate, 1-5 parts of thiourea, 1-5 parts of hexamethylenetetramine and the balance of water.
[0006] A passivation treatment method for steel parts comprises the following steps: preparing the three-in-one passivator for oil, rust and passivation as defined in any one of claims 1 to 6; and (3) immersing the steel piece into a passivating agent solution, performing treatment for a preset time interval, washing the steel piece with water, and drying. [0007] And a steel member having a surface with a passivation formed by the steel member passivation treatment method as described above.
Advantageous effects of the invention
Advantageous effects
[0008] The three-in-one passivator for oil and rust removal and passivation can remove oil and rust and form a film layer with the same inch passivation, and the formed passivation layer has a fine structure and strong corrosion resistance and can generate a passivation layer with good corrosion resistance on the surface of a steel part.
Modes for carrying out the invention
[0009] The present invention will be described in detail with reference to specific examples.
[0010] The embodiment of the invention provides a three-in-one passivator for oil removal, rust removal and passivation, which is used for surface pretreatment of steel parts and comprises the following components in parts by weight in 2000 parts: 50-100 parts of phosphoric acid, 5-20 parts of phytic acid, 2-6 parts of alkyl polyoxyethylene ether, 20-40 parts of zinc oxide, 5-30 parts of aluminum tripolyphosphate, 1-5 parts of thiourea, 1-5 parts of hexamethylenetetramine and the balance of water.
[0011] Specifically, the weight part of the phosphoric acid is 60-80 parts. Preferably, the phytic acid is 10-15 parts by weight, the alkyl polyoxyethylene ether is preferably 3-5 parts by weight, the zinc oxide is preferably 25-35 parts by weight, the aluminum tripolyphosphate is preferably 15-20 parts by weight, the thiourea is preferably 2-4 parts by weight, and the hexamethylenetetramine is preferably 2-4 parts by weight.
[0012] In the three-in-one passivator for oil removal, rust removal and passivation, a better passivation effect is achieved by controlling the proportion balance of the components. For example, when the content of phosphoric acid is low, rust removal is slow or impossible, and formation of a passivation film is too slow or too thin, whereas reaction is too fast, which results in too fast film formation, and the newly formed passivation film is dissolved again, and the passivation film is not strong enough, so the weight part of phosphoric acid is preferable in this embodiment. Phosphoric acid, phytic acid and zinc oxide are used as main components of the passivation layer, alkyl polyoxyethylene ether is used as an oil removing component, thiourea and hexamethylenetetramine are used as auxiliary components, and the corrosion resistance of the passivation layer is improved.
[0013] In the embodiment, the three-in-one passivator for oil and rust removal and passivation can remove oil and rust and form a film layer with inch passivation, and the formed passivation film has a fine structure and firm adhesion, can remove grease and rust on the surface of a steel part and generates passivation with good corrosion resistance.
[0014] The embodiment of the invention also provides a steel part passivation treatment method, which comprises the following steps: preparing the three-in-one passivator for oil removal, rust removal and passivation; and (3) immersing the steel piece into a passivating agent solution, performing treatment for a preset time interval, washing the steel piece with water, and drying.
[0015] Specifically, the steel pieces are preferably immersed in the passivating agent solution for 3 to 30 minutes.
[0016] The embodiment of the invention also provides the steel part which is processed by the steel part passivation processing method, so that passivation is formed on the surface of the steel part. The passivation can protect the steel piece, and the corrosion resistance is strong. The three-in-one passivator for oil removal, rust removal and passivation and the treatment method thereof according to the embodiment of the invention are described by specific examples.
[0017] Example 1
[0018] Mixing the following components in parts by weight: calculated by 2000 parts by weight, 50 parts of phosphoric acid, 5 parts of phytic acid, 2 parts of alkyl polyoxyethylene ether, 20 parts of zinc oxide, 5 parts of aluminum tripolyphosphate, 1 part of thiourea, 1 part of hexamethylenetetramine and the balance of water.
[0019] The treatment method comprises the following steps: preparing a three-in-one passivator for oil removal, rust removal and passivation; and (3) immersing the steel part into a passivating agent solution, treating for 30 minutes at normal temperature, washing the steel part with water, and drying. The passivation drying temperature should not be too high, and should be controlled to be between normal temperature and 100 ℃ to prevent the passivation layer from cracking.
[0020] After the workpiece is treated by the passivating agent solution, the surface of the workpiece is observed, and is found to be gray, oil stain-free, rust-free, uniform in color and fine in passivation, and the workpiece can be prevented from rusting for 4 months when placed in a dry place.
[0021] Example 2
[0022] Mixing the following components in parts by weight: according to 2000 parts by weight, 70 parts of phosphoric acid, 10 parts of phytic acid, 3.5 parts of alkyl polyoxyethylene ether, 28 parts of zinc oxide, 15 parts of aluminum tripolyphosphate, 2 parts of thiourea, 2 parts of hexamethylenetetramine and the balance of water.
[0023] The treatment method comprises the following steps: preparing a three-in-one passivator for oil removal, rust removal and passivation; and (3) immersing the steel part into a passivating agent solution, treating for 20 minutes at normal temperature, washing the steel part with water, and drying. The passivation drying temperature should not be too high, and should be controlled to be between normal temperature and 100 ℃ to prevent the passivation layer from cracking.
[0024] After the workpiece is treated by the passivating agent solution, the surface of the workpiece is observed, and is found to be gray, oil stain-free, rust-free, uniform in color and fine in passivation, and the workpiece can be prevented from rusting for 8 months when placed in a dry place.
[0025] Example 3
[0026] Mixing the following components in parts by weight: by weight, 2000 parts of phosphoric acid, 15 parts of phytic acid, 4.5 parts of alkyl polyoxyethylene ether, 33 parts of zinc oxide, 23 parts of aluminum tripolyphosphate, 3 parts of thiourea, 4 parts of hexamethylenetetramine and the balance of water.
[0027] The treatment method comprises the following steps: preparing a three-in-one passivator for oil removal, rust removal and passivation; and (3) immersing the steel part into a passivating agent solution, treating for 20 minutes at normal temperature, washing the steel part with water, and drying. The passivation drying temperature should not be too high, and should be controlled to be between normal temperature and 100 ℃ to prevent the passivation layer from cracking.
[0028] After the workpiece is treated by the passivating agent solution, the surface of the workpiece is observed, and is found to be gray, oil stain-free, rust-free, uniform in color and fine in passivation, and the workpiece can be prevented from rusting for 14 months when placed in a dry place.
[0029] Example 4
[0030] Mixing the following components in parts by weight: calculated by 2000 parts by weight, 100 parts of phosphoric acid, 20 parts of phytic acid, 6 parts of alkyl polyoxyethylene ether, 40 parts of zinc oxide, 30 parts of aluminum tripolyphosphate, 5 parts of thiourea, 5 parts of hexamethylene tetramine and the balance of water.
[0031] The treatment method comprises the following steps: preparing a three-in-one passivator for oil removal, rust removal and passivation; and (3) immersing the steel part into a passivating agent solution, treating for 10 minutes at normal temperature, washing the steel part with water, and drying. The passivation drying temperature should not be too high, and should be controlled to be between normal temperature and 100 ℃ to prevent the passivation layer from cracking.
[0032] After the workpiece is treated by the passivating agent solution, the surface of the workpiece is observed, and is found to be gray, oil stain-free, rust-free, uniform in color and fine in passivation, and the workpiece can be prevented from rusting after being placed in a dry place for 12 months.
[0033] It should be noted that the present invention is not limited to the above-mentioned embodiments, and other changes and modifications can be made by those skilled in the art according to the spirit of the present invention, and these changes and modifications are included in the scope of the present invention as claimed.
Claims (1)
- Claims[ claim 1] A three-in-one passivator for oil, rust and passivation is used for forming passivation on the surface of steel parts, and is characterized by comprising the following components in parts by weight in 2000 parts: 50-100 parts of phosphoric acid, 5-20 parts of phytic acid, 2-6 parts of alkyl polyoxyethylene ether, 20-40 parts of zinc oxide, 5-30 parts of aluminum tripolyphosphate, 1-5 parts of thiourea, 1-5 parts of hexamethylenetetramine and the balance of water.[ claim 2] the three-in-one passivator for oil, rust and passivation, according to claim 1, characterized in that the phosphoric acid is 60-80 parts by weight.[ claim 3] the three-in-one passivator for oil, rust and passivation according to claim 1, wherein the weight portion of the phytic acid is 10-15.[ claim 4] the three-in-one passivator for oil, rust and passivation according to claim 1, wherein the alkyl polyoxyethylene ether is 3-5 parts by weight.[ claim 5] the three-in-one passivator for oil, rust and passivation, according to claim 1, wherein the zinc oxide is 25-35 parts by weight. The aluminum tripolyphosphate is 15-20 parts by weight[ claim 6] the three-in-one passivator for oil, rust and passivation according to claim 1, wherein the thiourea is 2-4 parts by weight. The weight portion of the hexamethylene tetramine is 2-4 portions.[ claim 7] A steel member treatment method comprising the steps of: preparing the three-in-one passivator for oil, rust and passivation as defined in any one of claims 1 to 6; immersing the steel piece in a passivating agent solution, treating for a preset time interval to remove oil and rust on the surface of the steel piece and form a passivation film, washing the steel piece with water, and drying.[ claim 8] A steel member characterized in that the surface of the steel member is a passive film formed by the steel member treatment method according to claim 7.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2017/091747 WO2019006679A1 (en) | 2017-07-04 | 2017-07-04 | Passivation agent for oil removal, rust removal and passivation, steel and iron component, and passivation treatment method therefor |
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| Publication Number | Publication Date |
|---|---|
| CN110809637A true CN110809637A (en) | 2020-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201780092833.7A Withdrawn CN110809637A (en) | 2017-07-04 | 2017-07-04 | Three-in-one passivator for oil removal, rust removal and passivation, steel part and passivation treatment method thereof |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN110809637A (en) |
| WO (1) | WO2019006679A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111719115B (en) * | 2020-07-08 | 2022-05-03 | 中国铁道科学研究院集团有限公司金属及化学研究所 | Composite anti-corrosion wear-resistant layer for steel substrate |
Citations (7)
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|---|---|---|---|---|
| CN101629288A (en) * | 2009-08-21 | 2010-01-20 | 攀枝花新钢钒股份有限公司 | Passivation treating agent for hot dip aluminum zinc plate and preparation method thereof |
| CN103334099A (en) * | 2013-06-18 | 2013-10-02 | 杭州聚城环保科技有限公司 | Environmentally-friendly multifunctional metal surface treating fluid |
| CN104711559A (en) * | 2013-12-14 | 2015-06-17 | 三达奥克化学股份有限公司 | Normal-temperature rapid phosphatizing agent with excellent corrosion resistance and production method thereof |
| US20150322575A1 (en) * | 2009-11-04 | 2015-11-12 | Bulk Chemicals, Inc. | Trivalent chromium passivation and pretreatment composition and method for zinc-containing metals |
| CN105256296A (en) * | 2015-11-12 | 2016-01-20 | 山东大学 | Normal/low-temperature chemical conversion solution for 35CrMnSi steel and preparing method thereof |
| CN105369271A (en) * | 2015-12-10 | 2016-03-02 | 董晓娜 | Before-coating metal surface treatment method |
| CN106086848A (en) * | 2016-07-19 | 2016-11-09 | 东莞市凯盟表面处理技术开发有限公司 | A kind of acid-washing stainless steel passivating solution and preparation method thereof and using method |
-
2017
- 2017-07-04 CN CN201780092833.7A patent/CN110809637A/en not_active Withdrawn
- 2017-07-04 WO PCT/CN2017/091747 patent/WO2019006679A1/en active Application Filing
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101629288A (en) * | 2009-08-21 | 2010-01-20 | 攀枝花新钢钒股份有限公司 | Passivation treating agent for hot dip aluminum zinc plate and preparation method thereof |
| US20150322575A1 (en) * | 2009-11-04 | 2015-11-12 | Bulk Chemicals, Inc. | Trivalent chromium passivation and pretreatment composition and method for zinc-containing metals |
| CN103334099A (en) * | 2013-06-18 | 2013-10-02 | 杭州聚城环保科技有限公司 | Environmentally-friendly multifunctional metal surface treating fluid |
| CN104711559A (en) * | 2013-12-14 | 2015-06-17 | 三达奥克化学股份有限公司 | Normal-temperature rapid phosphatizing agent with excellent corrosion resistance and production method thereof |
| CN105256296A (en) * | 2015-11-12 | 2016-01-20 | 山东大学 | Normal/low-temperature chemical conversion solution for 35CrMnSi steel and preparing method thereof |
| CN105369271A (en) * | 2015-12-10 | 2016-03-02 | 董晓娜 | Before-coating metal surface treatment method |
| CN106086848A (en) * | 2016-07-19 | 2016-11-09 | 东莞市凯盟表面处理技术开发有限公司 | A kind of acid-washing stainless steel passivating solution and preparation method thereof and using method |
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| WO2019006679A1 (en) | 2019-01-10 |
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Application publication date: 20200218 |
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