CN111321396A - Metal surface treatment method - Google Patents
Metal surface treatment method Download PDFInfo
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- CN111321396A CN111321396A CN202010250540.0A CN202010250540A CN111321396A CN 111321396 A CN111321396 A CN 111321396A CN 202010250540 A CN202010250540 A CN 202010250540A CN 111321396 A CN111321396 A CN 111321396A
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- Prior art keywords
- metal surface
- hydrogen peroxide
- surface treatment
- treatment method
- components
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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
- C23C22/08—Orthophosphates
Abstract
The invention provides a metal surface treatment method, which relates to the field of metal heat treatment; the invention comprises, including the following steps; firstly, preparing a treatment fluid, and then heating alloy steel to 600-680 ℃; then, the alloy steel is immersed into the treatment fluid for 10-15 seconds and then taken out, and is naturally cooled; the treatment fluid comprises the following components in parts by mass and the specific gravity ranges of the components: deionized water: 80-85; hydrogen peroxide: 6-8; triethanolamine: 1.2-1.5; trisodium phosphate: 2-4; citric acid: 1-1.2; aluminum potassium sulfate: 2-2.2; wherein, all the components are placed in an ultrasonic stirrer and stirred and dispersed for 3 to 5 minutes under the frequency of 20 KHz; the temperature was maintained at 45-55 ℃. The passivation solution of the invention takes hydrogen peroxide as the main passivation solution, plays a decisive role in the quality of the passivation film, and takes trisodium phosphate as the auxiliary passivation solution along with the consumption of hydrogen peroxide, thereby making up the defect of the quality reduction of the passivation film caused by the decomposition of hydrogen peroxide in the passivation process and saving medicines.
Description
Technical Field
The invention relates to a metal heat treatment material technology, in particular to a metal surface treatment method, and belongs to the technical field of heat treatment.
Background
In order to improve the performance of a metal material such as a steel material, a workpiece made of a metal material needs to be heat-treated, and heat treatment methods such as quenching, tempering, annealing, and normalizing are generally used.
The solution treatment or heat treatment process with a rapid cooling process of materials such as aluminum alloys, copper alloys, titanium alloys, tempered glass, etc. is also generally called quenching. The strength, hardness, wear resistance, fatigue strength, toughness and other properties of the quenched steel are greatly improved, so that different use requirements of various mechanical parts and tools are met. The special physical and chemical properties of ferromagnetism, corrosion resistance and the like of certain special steel can be met through quenching.
A smooth metal surface usually requires a thin protective film, called a passivation film, to resist corrosion and rust. Traditionally, passivation solutions capable of forming passivation films for metals generally include sodium nitrite, hydrazine, polyphosphate, hydrogen peroxide and the like. Hydrogen peroxide is a new green environment-friendly passivator and is widely applied, but in actual implementation, a passivation film on the surface of metal is easy to generate pitting corrosion and secondary rust, so the corrosion resistance of the passivation film is not ideal.
Therefore, it is required to improve the existing metal surface treatment process, so that the metal surface treated by the metal surface treatment process not only has excellent mechanical properties, but also has excellent corrosion resistance.
Disclosure of Invention
The present invention provides a method for treating a metal surface which is corrosion-resistant and has excellent mechanical strength, comprising the steps of;
firstly, preparing a treatment fluid, and then heating alloy steel to 600-680 ℃; then, the alloy steel is immersed into the treatment fluid for 10-15 seconds and then taken out, and is naturally cooled;
the treatment fluid comprises the following components in parts by mass and the specific gravity ranges of the components:
deionized water: 80-85;
hydrogen peroxide: 6-8;
triethanolamine: 1.2-1.5;
trisodium phosphate: 2-4;
citric acid: 1-1.2;
aluminum potassium sulfate: 2-2.2;
wherein, all the components are placed in an ultrasonic stirrer and stirred and dispersed for 3 to 5 minutes under the frequency of 20 KHz; the temperature was maintained at 45-55 ℃.
The metal surface treatment method comprises the following steps of:
deionized water: 80;
hydrogen peroxide: 6;
triethanolamine: 1.4;
trisodium phosphate: 2;
citric acid: 1.2;
aluminum potassium sulfate: 2.
the metal surface treatment method as described above, wherein the treatment liquid includes at least a filler; the mass ratio of the filler to the water is 1: 80-120 parts of; the filler is one or more of heavy calcium carbonate powder, montmorillonite, talcum powder, kaolin, barium sulfate and mica powder.
The metal surface treatment method as described above, wherein the treatment liquid further includes polyvinyl alcohol; the mass ratio of the polyvinyl alcohol to the water is 1: 160-180.
The metal surface treatment method comprises the following steps of:
dimethyl sulfoxide: 0.5 to 1;
ethanol: 0.5 to 1;
sodium carbonate: 1-3.
The passivation solution of the invention takes hydrogen peroxide as the main passivation solution, plays a decisive role in the quality of the passivation film, and takes trisodium phosphate as the auxiliary passivation solution along with the consumption of hydrogen peroxide, thereby making up the defect of the quality reduction of the passivation film caused by the decomposition of hydrogen peroxide in the passivation process and saving medicines. Triethanolamine acts as a chelating agent to prevent the deposition of Fe3+ on the metal surface, thereby preventing the occurrence of pitting and secondary rusting. Moreover, small liquid drops formed by dispersing the citric acid and the aluminum potassium sulfate can effectively solve the problem of cracks generated by steel during manufacturing quenching, and ensure that austenite can be cooled at a speed exceeding a critical cooling speed, so that a martensite structure is obtained, the required steel performance is achieved, waste caused by poor production performance is prevented, and the production cost of a user is further saved.
Therefore, the passivation solution can form a compact passivation film on the surface of metal, thereby resisting corrosion and rustiness and prolonging the service life of the metal.
Detailed Description
The embodiment of the invention provides a metal surface treatment method, which at least comprises the following steps;
firstly, preparing a treatment fluid, and then heating alloy steel to 600-680 ℃; then, the alloy steel is immersed into the treatment fluid for 10-15 seconds and then taken out, and is naturally cooled;
the treatment fluid comprises the following components in parts by mass and the specific gravity ranges of the components:
deionized water: 80-85;
hydrogen peroxide: 6-8;
triethanolamine: 1.2-1.5;
trisodium phosphate: 2-4;
citric acid: 1-1.2;
aluminum potassium sulfate: 2-2.2;
wherein, all the components are placed in an ultrasonic stirrer and stirred and dispersed for 3 to 5 minutes under the frequency of 20 KHz; the temperature was maintained at 45-55 ℃.
Preferably, the treatment fluid at least comprises the following components in parts by mass and specific gravity ranges:
deionized water: 80;
hydrogen peroxide: 6;
triethanolamine: 1.4;
trisodium phosphate: 2;
citric acid: 1.2;
aluminum potassium sulfate: 2.
the passivation solution of the invention takes hydrogen peroxide as the main passivation solution, plays a decisive role in the quality of the passivation film, and takes trisodium phosphate as the auxiliary passivation solution along with the consumption of hydrogen peroxide, thereby making up the defect of the quality reduction of the passivation film caused by the decomposition of hydrogen peroxide in the passivation process and saving medicines. Triethanolamine acts as a chelating agent to prevent the deposition of Fe3+ on the metal surface, thereby preventing the occurrence of pitting and secondary rusting. Moreover, small liquid drops formed by dispersing the citric acid and the aluminum potassium sulfate can effectively solve the problem of cracks generated by steel during manufacturing quenching, and ensure that austenite can be cooled at a speed exceeding a critical cooling speed, so that a martensite structure is obtained, the required steel performance is achieved, waste caused by poor production performance is prevented, and the production cost of a user is further saved.
Therefore, the passivation solution can form a compact passivation film on the surface of metal, thereby resisting corrosion and rustiness and prolonging the service life of the metal.
The metal surface treatment method according to the present embodiment, wherein the treatment liquid includes at least a filler; the mass ratio of the filler to the water is 1: 80-120 parts of; the filler is one or more of heavy calcium carbonate powder, montmorillonite, talcum powder, kaolin, barium sulfate and mica powder.
The filler can reduce the cooling speed of the treating fluid and ensure the reasonable change of the metallographic phase in the metal.
The metal surface treatment method according to the present embodiment, wherein the treatment liquid further includes polyvinyl alcohol; the mass ratio of the polyvinyl alcohol to the water is 1: 160-180.
The polyvinyl alcohol can effectively improve the viscosity of the treatment liquid, control the boiling rate of the liquid and improve the quality and smoothness of surface treatment.
The metal surface treatment method of the embodiment comprises the following components in parts by mass and specific gravity ranges:
dimethyl sulfoxide: 0.5 to 1;
ethanol: 0.5 to 1;
sodium carbonate: 1-3.
Dimethyl sulfoxide can enhance the permeability of the medicament, and ethanol and sodium carbonate can remove oil dirt and organic residues on the surface of a workpiece, so that the surface treatment effect of metal is further improved.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (5)
1. A metal surface treatment method is characterized by comprising the following steps;
firstly, preparing a treatment fluid, and then heating alloy steel to 600-680 ℃; then, the alloy steel is immersed into the treatment fluid for 10-15 seconds and then taken out, and is naturally cooled;
the treatment fluid comprises the following components in parts by mass and the specific gravity ranges of the components:
deionized water: 80-85;
hydrogen peroxide: 6-8;
triethanolamine: 1.2-1.5;
trisodium phosphate: 2-4;
citric acid: 1-1.2;
aluminum potassium sulfate: 2-2.2;
wherein, all the components are placed in an ultrasonic stirrer and stirred and dispersed for 3 to 5 minutes under the frequency of 20 KHz; the temperature was maintained at 45-55 ℃.
2. The metal surface treatment method according to claim 1, wherein the treatment liquid comprises at least the following components in parts by mass and specific gravity ranges:
deionized water: 80;
hydrogen peroxide: 6;
triethanolamine: 1.4;
trisodium phosphate: 2;
citric acid: 1.2;
aluminum potassium sulfate: 2.
3. the metal surface treatment method according to claim 1 or 2, wherein the treatment liquid includes at least a filler; the mass ratio of the filler to the water is 1: 80-120 parts of; the filler is one or more of heavy calcium carbonate powder, montmorillonite, talcum powder, kaolin, barium sulfate and mica powder.
4. The metal surface treatment method according to claim 1 or 2, wherein the treatment liquid further comprises polyvinyl alcohol; the mass ratio of the polyvinyl alcohol to the water is 1: 160-180.
5. The metal surface treatment method according to claim 1 or 2, wherein the treatment liquid comprises the following components in parts by mass and specific gravity ranges:
dimethyl sulfoxide: 0.5 to 1;
ethanol: 0.5 to 1;
sodium carbonate: 1-3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202010250540.0A CN111321396A (en) | 2020-04-01 | 2020-04-01 | Metal surface treatment method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010250540.0A CN111321396A (en) | 2020-04-01 | 2020-04-01 | Metal surface treatment method |
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| CN111321396A true CN111321396A (en) | 2020-06-23 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114479669A (en) * | 2021-12-24 | 2022-05-13 | 西峡县三胜新材料有限公司 | Water-based environment-friendly antirust agent capable of being used at high temperature of 300-950 ℃ and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006136334A2 (en) * | 2005-06-22 | 2006-12-28 | Henkel Kommanditgesellschaft Auf Aktien | Electrodeposition material, process for providing a corrosion-protective layer of tio2 on an electrically conductive substrate and metal substrate coated with a layer of tio2 |
| CN103397151A (en) * | 2013-08-13 | 2013-11-20 | 王井丽 | Special quenching agent for large shaft and preparation method of quenching agent |
| CN107988593A (en) * | 2016-10-26 | 2018-05-04 | 东莞新科技术研究开发有限公司 | Metal surface treating method |
| CN108203821A (en) * | 2018-01-25 | 2018-06-26 | 上海应用技术大学 | A kind of environmentally friendly passivator for adulterating GO, preparation method and applications |
-
2020
- 2020-04-01 CN CN202010250540.0A patent/CN111321396A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006136334A2 (en) * | 2005-06-22 | 2006-12-28 | Henkel Kommanditgesellschaft Auf Aktien | Electrodeposition material, process for providing a corrosion-protective layer of tio2 on an electrically conductive substrate and metal substrate coated with a layer of tio2 |
| CN103397151A (en) * | 2013-08-13 | 2013-11-20 | 王井丽 | Special quenching agent for large shaft and preparation method of quenching agent |
| CN107988593A (en) * | 2016-10-26 | 2018-05-04 | 东莞新科技术研究开发有限公司 | Metal surface treating method |
| CN108203821A (en) * | 2018-01-25 | 2018-06-26 | 上海应用技术大学 | A kind of environmentally friendly passivator for adulterating GO, preparation method and applications |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114479669A (en) * | 2021-12-24 | 2022-05-13 | 西峡县三胜新材料有限公司 | Water-based environment-friendly antirust agent capable of being used at high temperature of 300-950 ℃ and preparation method thereof |
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Application publication date: 20200623 |