CN107419261B - Processing method for stably improving surface anti-pollution capability of stainless steel product - Google Patents
Processing method for stably improving surface anti-pollution capability of stainless steel product Download PDFInfo
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- CN107419261B CN107419261B CN201710537788.3A CN201710537788A CN107419261B CN 107419261 B CN107419261 B CN 107419261B CN 201710537788 A CN201710537788 A CN 201710537788A CN 107419261 B CN107419261 B CN 107419261B
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- 229910001220 stainless steel Inorganic materials 0.000 title claims abstract description 50
- 239000010935 stainless steel Substances 0.000 title claims abstract description 50
- 238000003672 processing method Methods 0.000 title claims abstract description 12
- 238000005275 alloying Methods 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims abstract description 9
- 238000005554 pickling Methods 0.000 claims description 13
- MRELNEQAGSRDBK-UHFFFAOYSA-N lanthanum(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[La+3].[La+3] MRELNEQAGSRDBK-UHFFFAOYSA-N 0.000 claims description 12
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 10
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 10
- 239000011248 coating agent Substances 0.000 claims description 10
- 238000000576 coating method Methods 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 10
- 239000003960 organic solvent Substances 0.000 claims description 10
- 239000002994 raw material Substances 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 238000010079 rubber tapping Methods 0.000 claims description 7
- KOPBYBDAPCDYFK-UHFFFAOYSA-N caesium oxide Chemical compound [O-2].[Cs+].[Cs+] KOPBYBDAPCDYFK-UHFFFAOYSA-N 0.000 claims description 6
- 229910001942 caesium oxide Inorganic materials 0.000 claims description 6
- 238000004140 cleaning Methods 0.000 claims description 6
- 229910000428 cobalt oxide Inorganic materials 0.000 claims description 6
- IVMYJDGYRUAWML-UHFFFAOYSA-N cobalt(ii) oxide Chemical compound [Co]=O IVMYJDGYRUAWML-UHFFFAOYSA-N 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- BTMZHHCFEOXAAN-UHFFFAOYSA-N 2-[bis(2-hydroxyethyl)amino]ethanol;2-dodecylbenzenesulfonic acid Chemical compound OCCN(CCO)CCO.CCCCCCCCCCCCC1=CC=CC=C1S(O)(=O)=O BTMZHHCFEOXAAN-UHFFFAOYSA-N 0.000 claims description 5
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 5
- XSTXAVWGXDQKEL-UHFFFAOYSA-N Trichloroethylene Chemical group ClC=C(Cl)Cl XSTXAVWGXDQKEL-UHFFFAOYSA-N 0.000 claims description 5
- 229910052786 argon Inorganic materials 0.000 claims description 5
- 239000008367 deionised water Substances 0.000 claims description 5
- 229910021641 deionized water Inorganic materials 0.000 claims description 5
- 238000011010 flushing procedure Methods 0.000 claims description 5
- 230000007935 neutral effect Effects 0.000 claims description 5
- 229910017604 nitric acid Inorganic materials 0.000 claims description 5
- 229910052757 nitrogen Inorganic materials 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims description 5
- 238000010926 purge Methods 0.000 claims description 5
- 229940105956 tea-dodecylbenzenesulfonate Drugs 0.000 claims description 5
- UBOXGVDOUJQMTN-UHFFFAOYSA-N trichloroethylene Natural products ClCC(Cl)Cl UBOXGVDOUJQMTN-UHFFFAOYSA-N 0.000 claims description 5
- 238000007664 blowing Methods 0.000 claims description 4
- 239000002253 acid Substances 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims description 2
- 230000003373 anti-fouling effect Effects 0.000 abstract 1
- 238000004372 laser cladding Methods 0.000 abstract 1
- 239000000523 sample Substances 0.000 description 12
- 238000001514 detection method Methods 0.000 description 5
- 229910000734 martensite Inorganic materials 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 239000011573 trace mineral Substances 0.000 description 3
- 235000013619 trace mineral Nutrition 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 238000004454 trace mineral analysis Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000007605 air drying Methods 0.000 description 1
- 150000001721 carbon Chemical class 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005496 eutectics Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
Classifications
-
- 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
- C23C24/00—Coating starting from inorganic powder
- C23C24/08—Coating starting from inorganic powder by application of heat or pressure and heat
- C23C24/10—Coating starting from inorganic powder by application of heat or pressure and heat with intermediate formation of a liquid phase in the layer
-
- 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
- C23G5/00—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents
- C23G5/02—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents
- C23G5/032—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents containing oxygen-containing compounds
- C23G5/036—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents containing oxygen-containing compounds having also nitrogen
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
The invention belongs to the technical field of stainless steel product surfaces, and particularly relates to a processing method for stably improving the anti-pollution capacity of the surface of a stainless steel product. Compared with the prior art, the invention has the following advantages: the whole process is controllable, the surface laser cladding alloying layer greatly reduces the cavity structure, and the stainless steel surface has stable antifouling performance.
Description
Technical Field
The invention belongs to the technical field of stainless steel product surfaces, and particularly relates to a processing method for stably improving the anti-pollution capacity of the surface of a stainless steel product.
Background
The trace analysis is to determine the concentration of trace elements in a sample by a detection instrument and determine the distribution condition of the trace elements in the sample or on the surface of the sample by utilizing a probe technology, because the trace elements in the sample detected by the trace analysis are less than one million parts, trace impurities or pollutants remained on the surface of a sample injector in the sample or when the sample enters the detection instrument are all used for reducing the sensitivity and the selectivity of the detection instrument, at present, stainless steel materials are increasingly applied to a precise detection instrument, molecules of a sample to be detected are easy to form residues on the surface of the stainless steel, so how to improve the anti-pollution performance of the surface of the stainless steel has a very important significance for ensuring the detection precision, in the prior art, the cleanliness of the surface of a stainless steel part is generally improved to a certain extent by multiple times of cleaning and passivating, but a tiny cavity still exists by deep research, in order to improve the above problems, after multiple heating and constant temperature treatment in application No. 201310063710.4, supersaturated carbon in martensite is gradually precipitated in the form of carbide, and then cavities on the surface of stainless steel are reduced, so as to achieve the corresponding purpose, but the duration, treatment temperature and treatment times of the treatment will all affect the stainless steel correspondingly, if the treatment is not in place, the anti-pollution performance of the product surface is poor, if the treatment time is too long or the temperature is too high, the appearance or performance of the stainless steel may be affected adversely, and in order to avoid the above problems, a treatment method with relatively controllable conditions should be researched.
Disclosure of Invention
The invention aims to provide a processing method for stably improving the pollution resistance of the surface of a stainless steel product aiming at the existing problems.
The invention is realized by the following technical scheme: a processing method for stably improving the pollution resistance of the surface of a stainless steel product comprises the following steps:
(1) the tapping temperature is controlled to be 1120-1170 ℃ in the preparation process of the stainless steel product;
(2) cleaning the prepared stainless steel product with an organic solvent;
(3) an alloying layer with the diameter not more than 16 mu m is cladded on the surface of the coating by laser, and the coating material comprises the following raw materials in parts by weight: 4-7 parts of lanthanum oxide, 8-12 parts of cesium oxide and 1-3 parts of cobalt oxide;
(4) baking the treated stainless steel product for 15-20 minutes by using far infrared rays with the wavelength of 9-15 mu m, wherein the temperature is not more than 80 ℃, and then carrying out acid washing in a nitric acid solution with the mass concentration of 35-45%;
(5) and (5) flushing the mixture to be neutral by using deionized water, and then blowing the mixture by using a blowing device.
Further, the organic solvent comprises the following raw materials in percentage by weight: 20-24% of triethanolamine dodecylbenzene sulfonate, 4-6% of trichloroethylene and the balance of water.
Further, the far infrared ray irradiation temperature is 60-75 ℃.
Further, in the step (4), the pickling temperature is 15-20 ℃, an ultrasonic generator with the frequency of 25-65kHz is started in the pickling process, the starting time is 1 minute and three times each time, the pickling time is 10 minutes, and the starting time interval of the ultrasonic generator in two adjacent times is not less than 2 minutes.
Further, when the ultrasonic generator is started for the first time, the ultrasonic frequency is 32 kHz; when the ultrasonic generator is started for the first time, the ultrasonic frequency is 64 kHz; the first time the ultrasonic generator was started, the ultrasonic frequency was 47 kHz.
Further, the purging device is purged by using compressed nitrogen or compressed argon.
Compared with the prior art, the invention has the following advantages: according to the invention, the thickness of the oxide layer is reduced in a low-temperature furnace discharging mode, then the dirt on the surface of the stainless steel can be effectively removed by using an organic solution, the alloying layer is laser-cladded on the surface of the stainless steel, the fiber structure of the alloying layer can be effectively refined, the martensite phase on the surface of the structure occurs, crystal grains in the layer are refined, eutectic compounds with regular shapes and uniform distribution are generated, further, a cavity structure is reduced, the surface of the stainless steel is treated by using low-temperature far infrared rays, the effect on the surface of the stainless steel is reduced, the supersaturation degree of martensite carbon is reduced, the whole process is controllable after acid pickling and air drying treatment, the cavity structure of the surface laser-cladded alloying layer is greatly reduced.
Detailed Description
Example 1
A processing method for stably improving the pollution resistance of the surface of a stainless steel product comprises the following steps:
(1) controlling the tapping temperature of the stainless steel product to 1150 ℃ in the preparation process of the stainless steel product;
(2) cleaning the prepared stainless steel product with an organic solvent, wherein the organic solvent comprises the following raw materials in percentage by weight: 22% of triethanolamine dodecylbenzene sulfonate, 5% of trichloroethylene and the balance of water;
(3) an alloying layer with the diameter not more than 16 mu m is cladded on the surface of the coating by laser, and the coating material comprises the following raw materials in parts by weight: 5 parts of lanthanum oxide, 10 parts of cesium oxide and 2 parts of cobalt oxide;
(4) baking the treated stainless steel product for 15-20 minutes by using far infrared rays with the wavelength of 9-15 mu m, wherein the temperature is not more than 80 ℃, the far infrared ray irradiation temperature is 60-75 ℃, and after completion, pickling in a nitric acid solution with the mass concentration of 40%;
the pickling temperature is 15-20 ℃, an ultrasonic generator with the frequency of 25-65kHz is started in the pickling process, the starting time is 1 minute and three times, the pickling time is 10 minutes, and the starting time interval of the ultrasonic generator in two adjacent times is not less than 2 minutes;
as a further improvement to the above scheme, when the ultrasonic generator is started for the first time, the ultrasonic frequency is 32 kHz; when the ultrasonic generator is started for the first time, the ultrasonic frequency is 64 kHz; when the ultrasonic generator is started for the first time, the ultrasonic frequency is 47 kHz;
(5) and flushing the mixture to be neutral by using deionized water, and then purging the mixture by using compressed nitrogen or compressed argon.
Example 2
A processing method for stably improving the pollution resistance of the surface of a stainless steel product comprises the following steps:
(1) controlling the tapping temperature of the stainless steel product to be 1120 ℃ in the preparation process of the stainless steel product;
(2) cleaning the prepared stainless steel product with an organic solvent, wherein the organic solvent comprises the following raw materials in percentage by weight: 24% of triethanolamine dodecylbenzene sulfonate, 6% of trichloroethylene and the balance of water;
(3) an alloying layer with the diameter not more than 16 mu m is cladded on the surface of the coating by laser, and the coating material comprises the following raw materials in parts by weight: 4 parts of lanthanum oxide, 12 parts of cesium oxide and 1 part of cobalt oxide;
(4) baking the treated stainless steel product for 15-20 minutes by using far infrared rays with the wavelength of 9-15 mu m, wherein the temperature is not more than 80 ℃, the far infrared ray irradiation temperature is 60-75 ℃, and after completion, pickling in a nitric acid solution with the mass concentration of 35%;
(5) and flushing the mixture to be neutral by using deionized water, and then purging the mixture by using compressed nitrogen or compressed argon.
Example 3
A processing method for stably improving the pollution resistance of the surface of a stainless steel product comprises the following steps:
(1) controlling the tapping temperature to 1170 ℃ in the preparation process of the stainless steel product;
(2) cleaning the prepared stainless steel product with an organic solvent, wherein the organic solvent comprises the following raw materials in percentage by weight: 20% of triethanolamine dodecylbenzene sulfonate, 4% of trichloroethylene and the balance of water;
(3) an alloying layer with the diameter not more than 16 mu m is cladded on the surface of the coating by laser, and the coating material comprises the following raw materials in parts by weight: 7 parts of lanthanum oxide, 8 parts of cesium oxide and 3 parts of cobalt oxide;
(4) baking the treated stainless steel product for 15-20 minutes by using far infrared rays with the wavelength of 9-15 mu m, wherein the temperature is not more than 80 ℃, the far infrared ray irradiation temperature is 60-75 ℃, and after completion, pickling in a nitric acid solution with the mass concentration of 45%;
(5) and flushing the mixture to be neutral by using deionized water, and then purging the mixture by using compressed nitrogen or compressed argon.
Setting a comparison group 1, and taking the example 5 in the application document in the background technology as the comparison group 1; setting a comparison group 2, and keeping the tapping temperature in the step (1) in the embodiment 1 unchanged according to the conventional tapping temperature and other contents; setting a comparison group 3, removing lanthanum oxide in the step (3) in the example 1, and keeping the rest content unchanged; setting a comparison group 4, removing the cesium oxide in the step (3) in the example 1, and keeping the rest content unchanged; setting a comparison group 3, removing the cobalt oxide in the step (3) in the example 5, and keeping the rest content unchanged; setting a comparison group 6, removing the far infrared ray treatment in the embodiment 1, and keeping the rest contents unchanged; and testing the surface ionic current of the treated stainless steel product, wherein the testing method comprises the following steps: introducing the clean air filtered by the filter element into a stainless steel sample injector, detecting the gas passing through the inner wall of the stainless steel sample injector by using FAIMS (field emission ionization System), obtaining the ionic current value generated by the ionized sample under the same condition, recording the initial value in a comparison group 1 as 1, and converting other values according to the proportion, wherein the test result is as follows:
TABLE 1
As can be seen from the data in Table 1, the stainless steel products treated by the method of the present invention are significantly improved and have better stability (the stain resistance in examples 1-3 is not much different), and the change of any condition thereof affects the stain resistance of the stainless steel products, wherein the influence is the greatest in example 4; compared with the control group 1, the method of the invention can further reduce the adsorption quantity of pollutants on the surface of the stainless steel product, improve the pollution resistance of the stainless steel product and has better stability.
Claims (5)
1. A processing method for stably improving the pollution resistance of the surface of a stainless steel product is characterized by comprising the following steps:
(1) the tapping temperature is controlled to be 1120-1170 ℃ in the preparation process of the stainless steel product;
(2) cleaning the prepared stainless steel product with an organic solvent;
(3) an alloying layer with the diameter not more than 16 mu m is cladded on the surface of the coating by laser, and the coating material comprises the following raw materials in parts by weight: 4-7 parts of lanthanum oxide, 8-12 parts of cesium oxide and 1-3 parts of cobalt oxide;
(4) baking the treated stainless steel product for 15-20 minutes by using far infrared rays with the wavelength of 9-15 mu m, wherein the temperature is not more than 80 ℃, and then carrying out acid washing in a nitric acid solution with the mass concentration of 35-45%;
(5) and (5) flushing the mixture to be neutral by using deionized water, and then blowing the mixture by using a blowing device.
2. The processing method for stably improving the anti-pollution capability of the surface of the stainless steel product as claimed in claim 1, wherein the organic solvent comprises the following raw materials in percentage by weight: 20-24% of triethanolamine dodecylbenzene sulfonate, 4-6% of trichloroethylene and the balance of water.
3. The method according to claim 1, wherein the far infrared ray irradiation temperature is 60 to 75 ℃.
4. The processing method for stably improving the surface anti-pollution capability of the stainless steel product as claimed in claim 1, wherein in the step (4), the pickling temperature is 15-20 ℃, an ultrasonic generator with 25-65kHz is started during pickling, each starting time is 1 minute and three times, the pickling time is 10 minutes, and the time interval between two adjacent starting times of the ultrasonic generator is not less than 2 minutes.
5. The process of claim 1, wherein the purging device is purged with compressed nitrogen or compressed argon.
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| CN201710537788.3A CN107419261B (en) | 2017-07-04 | 2017-07-04 | Processing method for stably improving surface anti-pollution capability of stainless steel product |
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| CN201710537788.3A CN107419261B (en) | 2017-07-04 | 2017-07-04 | Processing method for stably improving surface anti-pollution capability of stainless steel product |
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| CN107419261A CN107419261A (en) | 2017-12-01 |
| CN107419261B true CN107419261B (en) | 2020-08-18 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5571343A (en) * | 1993-08-25 | 1996-11-05 | Pohang Iron & Steel Co., Ltd. | Austenitic stainless steel having superior press-formability, hot workability and high temperature oxidation resistance, and manufacturing process therefor |
| CN105386030A (en) * | 2015-12-04 | 2016-03-09 | 航天精工股份有限公司 | Stainless steel surface processing method |
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2017
- 2017-07-04 CN CN201710537788.3A patent/CN107419261B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5571343A (en) * | 1993-08-25 | 1996-11-05 | Pohang Iron & Steel Co., Ltd. | Austenitic stainless steel having superior press-formability, hot workability and high temperature oxidation resistance, and manufacturing process therefor |
| CN105386030A (en) * | 2015-12-04 | 2016-03-09 | 航天精工股份有限公司 | Stainless steel surface processing method |
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Denomination of invention: A Processing Method for Stabilizing and Improving the Surface Pollution Resistance of Stainless Steel Products Effective date of registration: 20230609 Granted publication date: 20200818 Pledgee: Dangtu when financing Company limited by guarantee Pledgor: DANGTU HONGYU METAL FURNACE BURDEN CO.,LTD. Registration number: Y2023980043347 |
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