CN115896388A - Sublance slag adhesion-proof coating - Google Patents
Sublance slag adhesion-proof coating Download PDFInfo
- Publication number
- CN115896388A CN115896388A CN202211442741.6A CN202211442741A CN115896388A CN 115896388 A CN115896388 A CN 115896388A CN 202211442741 A CN202211442741 A CN 202211442741A CN 115896388 A CN115896388 A CN 115896388A
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- China
- Prior art keywords
- layer
- sublance
- transition layer
- transition
- thermal
- Prior art date
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- 239000002893 slag Substances 0.000 title claims abstract description 30
- 238000000576 coating method Methods 0.000 title claims abstract description 21
- 239000011248 coating agent Substances 0.000 title claims abstract description 20
- 230000007704 transition Effects 0.000 claims abstract description 40
- 229920002545 silicone oil Polymers 0.000 claims abstract description 9
- URLJKFSTXLNXLG-UHFFFAOYSA-N niobium(5+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Nb+5].[Nb+5] URLJKFSTXLNXLG-UHFFFAOYSA-N 0.000 claims description 22
- 238000007751 thermal spraying Methods 0.000 claims description 17
- 229910000484 niobium oxide Inorganic materials 0.000 claims description 15
- NPXOKRUENSOPAO-UHFFFAOYSA-N Raney nickel Chemical compound [Al].[Ni] NPXOKRUENSOPAO-UHFFFAOYSA-N 0.000 claims description 12
- 238000003860 storage Methods 0.000 claims description 11
- 239000000843 powder Substances 0.000 claims description 8
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 claims description 7
- ZKATWMILCYLAPD-UHFFFAOYSA-N niobium pentoxide Inorganic materials O=[Nb](=O)O[Nb](=O)=O ZKATWMILCYLAPD-UHFFFAOYSA-N 0.000 claims description 7
- 239000011812 mixed powder Substances 0.000 claims description 5
- 239000013049 sediment Substances 0.000 claims description 5
- 239000007921 spray Substances 0.000 claims description 5
- 238000005498 polishing Methods 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 abstract description 17
- 239000010959 steel Substances 0.000 abstract description 17
- 238000011065 in-situ storage Methods 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 76
- 239000003921 oil Substances 0.000 description 13
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 10
- 229910052782 aluminium Inorganic materials 0.000 description 9
- 238000000034 method Methods 0.000 description 5
- 239000003292 glue Substances 0.000 description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 238000007750 plasma spraying Methods 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000011247 coating layer Substances 0.000 description 2
- 238000010285 flame spraying Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Coating By Spraying Or Casting (AREA)
Abstract
The invention relates to the technical field of sublance, in particular to a sublance slag adhesion-proof coating. Including setting up the first transition layer in the sublance rifle body lower part outside, be provided with the oil reservoir outside the first transition layer, the oil reservoir outside is provided with the second transition layer, second transition layer outside is provided with the micropore layer, first transition layer, oil reservoir, second transition layer and micropore in situ have soaked silicone oil. The sublance slag adhesion preventing coating can prevent steel slag from being adhered to a sublance body.
Description
Technical Field
The invention relates to the technical field of sublance, in particular to a sublance slag adhesion-proof coating.
Background
The sublance is a gun-shaped object which can be lifted and inserted into the converter, and comprises a gun body, wherein the gun body is a water-cooled three-layer steel pipe, and a probe is temporarily inserted at the lower end of the gun body during each measurement so as to measure the data of the temperature, the oxygen content, the carbon content and the like of the molten steel. When measuring, the lower part of probe inserts in the molten steel of converter, and the lower extreme of rifle body only inserts in the converter and not insert in the molten steel, and the lower extreme of rifle body still has certain distance apart from the liquid level of molten steel, and at this moment, the reaction in the stove lasts, and the slag splashes under the oxygen efflux effect, adheres to on the rifle body, causes the sublance rifle body to glue the steel and glues the sediment, if it is serious to glue the sediment then can influence the normal in-service use of sublance, so generally can set up the scum scraper and scrape the sediment that glues above the sublance mouth. However, sometimes the steel slag is adhered firmly to the gun body, and the slag scraper is difficult to scrape the steel slag, so that the steel slag needs to be manually handled, which is inconvenient and dangerous.
Disclosure of Invention
Aiming at the technical defects, the invention provides the sublance slag adhesion preventing coating, so that the steel slag is not easy to adhere to a sublance body.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: the utility model provides an antiseized sediment coating of sublance, is including setting up the first transition layer in the sublance rifle body lower part outside, be provided with the oil storage layer outside the first transition layer, the oil storage layer outside is provided with the second transition layer, second transition layer outside is provided with the micropore layer, first transition layer, oil storage layer, second transition layer and micropore in situ have soaked silicone oil.
Further optimizing the technical scheme, the first transition layer is a nickel aluminum thermal spraying layer.
Further optimizing the technical scheme, the oil storage layer is a thermal aluminum coating layer, and the porosity of the thermal aluminum coating layer is 90%.
Further optimizing the technical scheme, the second transition layer is a thermal spraying nickel aluminum layer.
Further optimizing the technical scheme, the microporous layer is a thermal spraying niobium oxide layer, and the porosity of the thermal spraying niobium oxide layer is 0.6%.
The technical scheme is further optimized, the thermal spraying niobium oxide layer is obtained by polishing after thermal spraying of mixed powder of niobium pentoxide powder and niobium powder, wherein the mixed powder comprises 97% of niobium pentoxide powder and 3% of niobium powder.
Compared with the prior art, the invention has the following advantages: the sublance body is sequentially provided with a first transition layer, an oil storage layer, a second transition layer and a microporous layer, silicone oil is soaked in the first transition layer, the outer side of the microporous layer forms a silicon oil film, and the outer part of the microporous layer is polished, so that the steel slag is not easy to adhere to the microporous layer, and the steel slag is not easy to adhere to the sublance body.
Drawings
FIG. 1 is a schematic structural view of a sublance slag adhesion preventing coating.
Fig. 2 is an enlarged view taken at i in fig. 1.
In the figure: 1. a sublance body; 2. a first transition layer; 3. an oil reservoir; 4. a second transition layer; 5. a microporous layer.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
The specific implementation mode is as follows: referring to fig. 1-2, the sublance slag adhesion preventing coating comprises a first transition layer 2 arranged on the outer side of the lower portion of a sublance body 1, an oil storage layer 3 is arranged outside the first transition layer 2, a second transition layer 4 is arranged outside the oil storage layer 3, a microporous layer 5 is arranged outside the second transition layer 4, and silicone oil is immersed in the first transition layer 2, the oil storage layer 3, the second transition layer 4 and the microporous layer 5. The coating covers at least the entire outside of the part of the sublance body 1 that is intended to protrude into the converter, preferably the parts that are accessible by the slag scraper, in order to prevent the scraper of the slag scraper from catching on the upper end of the coating.
Preferably, the first transition layer 2 is a nickel aluminum thermal spraying layer, the thickness of the nickel aluminum thermal spraying layer is preferably about 0.2 mm, and due to the nature of the thermal spraying process, the nickel aluminum layer prepared by the thermal spraying process has a certain porosity. The thermally sprayed nickel-aluminum layer can be obtained by plasma or flame spraying nickel-aluminum powder, and can also be obtained by arc spraying nickel-aluminum wires. The weight ratio of nickel to aluminum in the nickel aluminum layer is generally 95:5. before the thermal spraying, the sublance body 1 is preferably blasted to a certain roughness to enhance the bonding strength.
Preferably, the oil reservoir layer 3 is a thermal aluminum sprayed layer, the thickness of the thermal aluminum sprayed layer is preferably 0.5-1 mm, and the porosity of the thermal aluminum sprayed layer is about 90%. The thermally sprayed aluminum layer may be obtained by plasma or flame spraying aluminum powder, or by arc spraying aluminum wire.
Preferably, the second transition layer 4 is a thermal nickel-aluminum coated layer, and the thickness of the second transition layer 4 is preferably about 0.1 mm. The second transition layer 4 is made by the same process and composition as the first transition layer 2. The transition layer plays a role in enhancing the binding force of the two adjacent layers, and the porosity of the transition layer is between 93 and 95 percent.
Preferably, the microporous layer 5 is a thermal spray niobium oxide layer, and the porosity of the thermal spray niobium oxide layer is about 0.6%. The thermal spray niobium oxide layer is obtained by plasma spraying of mixed powder of niobium pentoxide powder and elemental metal niobium powder, and then the obtained niobium oxide layer is polished, the higher the surface smoothness is, the better the roughness is, and the better the roughness is less than Ra0.4. The thermal spraying niobium oxide layer is preferably obtained by polishing a mixed powder of niobium pentoxide powder and niobium powder after thermal spraying, wherein the niobium pentoxide powder accounts for 97% of the total weight, and the niobium powder accounts for 3% of the total weight, and under the composition proportion, the niobium oxide layer has better strength and hardness, the porosity can reach about 0.6% under the condition of proper other spraying process conditions, and the size of the pores is smaller, so that the niobium oxide layer can be polished to higher smoothness. The silicon oil has good wettability to the sprayed niobium oxide layer. The hot sprayed niobium oxide layer is smooth and hard, and has very little abrasion when passing through a slag scraper.
The coating is thermally sprayed outside the sublance body 1 in sequence, and then silicone oil is soaked to fill the silicone oil in each coating, so that the sublance is obtained. When the lower part of the sublance body 1 is inserted into the converter, the micro-porous layer 5 has high smoothness, and a layer of silicon oil film is arranged on the outer side of the micro-porous layer, so that the steel slag is basically not adhered to the micro-porous layer 5, the bonding strength is very low even if the steel slag is adhered to the micro-porous layer, and the steel slag can be easily scraped by a slag scraper. Because the sublance body 1 is internally cooled by water, the aluminum has better heat conductivity, so that the temperature of the coating is lower, the volatilization of silicone oil is less, and the silicone oil is only adhered away by steel slag, thereby being capable of using longer time and playing an effective anti-sticking role basically in the service life cycle of the sublance body 1. Because the total thickness of all the coatings is thin, the passage of the sublance through the guide centering device is not influenced.
The foregoing detailed description is to be considered as merely illustrative of or illustrative of the principles of the invention, and the scope of the invention is not limited thereto. The equivalents and changes made by those skilled in the art based on the present invention are all within the scope of the present invention.
Claims (6)
1. The utility model provides an antiseized sediment coating of sublance which characterized in that: the gun body is characterized by comprising a first transition layer (2) arranged on the outer side of the lower portion of a sublance body (1), wherein an oil storage layer (3) is arranged outside the first transition layer (2), a second transition layer (4) is arranged outside the oil storage layer (3), a microporous layer (5) is arranged outside the second transition layer (4), and silicone oil is immersed in the first transition layer (2), the oil storage layer (3), the second transition layer (4) and the microporous layer (5).
2. The sublance slag adhesion-resistant coating of claim 1, wherein: the first transition layer (2) is a thermal spraying nickel aluminum layer.
3. The sublance slag adhesion-resistant coating of claim 1, wherein: the oil reservoir layer (3) is a thermal aluminum-sprayed layer, and the porosity of the thermal aluminum-sprayed layer is 90%.
4. The sublance slag adhesion-resistant coating of claim 1, wherein: the second transition layer (4) is a nickel aluminum thermal spraying layer.
5. The sublance slag adhesion-resistant coating of claim 1, wherein: the microporous layer (5) is a thermal spray niobium oxide layer, and the porosity of the thermal spray niobium oxide layer is 0.6%.
6. The sublance slag adhesion-resistant coating of claim 5, wherein: the thermal spraying niobium oxide layer is obtained by polishing a mixed powder of niobium pentoxide powder and niobium powder after thermal spraying, wherein the niobium pentoxide powder accounts for 97% of the total weight, and the niobium powder accounts for 3% of the total weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211442741.6A CN115896388B (en) | 2022-11-18 | 2022-11-18 | Slag-sticking-preventing coating for sublance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211442741.6A CN115896388B (en) | 2022-11-18 | 2022-11-18 | Slag-sticking-preventing coating for sublance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115896388A true CN115896388A (en) | 2023-04-04 |
| CN115896388B CN115896388B (en) | 2023-12-19 |
Family
ID=86472354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211442741.6A Active CN115896388B (en) | 2022-11-18 | 2022-11-18 | Slag-sticking-preventing coating for sublance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115896388B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU3909672A (en) * | 1972-02-17 | 1973-08-23 | British Steel Corporation | Aluminium/refractory coated lance |
| US4389360A (en) * | 1979-12-15 | 1983-06-21 | Nippon Steel Corporation | Method of forming a protective coating on a long lance to be immersed in molten metal |
| CN102839254A (en) * | 2012-09-18 | 2012-12-26 | 苏州宝联重工股份有限公司 | Non-sticky steel converter oxygen lance and manufacturing method thereof |
| CN202730177U (en) * | 2012-06-11 | 2013-02-13 | 苏州宝联重工股份有限公司 | Non-steel adhesion slag splashing protection device |
| CN202730170U (en) * | 2012-06-11 | 2013-02-13 | 苏州宝联重工股份有限公司 | Novel non-steel adhesion converter sublance |
| JP2013057104A (en) * | 2011-09-08 | 2013-03-28 | Nippon Steel & Sumitomo Metal Corp | Deposition prevention method of ground metal to oxygen top-blowing lance at converter blowing |
| CN112341873A (en) * | 2020-11-04 | 2021-02-09 | 东南大学 | Long-acting anti-icing coating and preparation method and application thereof |
-
2022
- 2022-11-18 CN CN202211442741.6A patent/CN115896388B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU3909672A (en) * | 1972-02-17 | 1973-08-23 | British Steel Corporation | Aluminium/refractory coated lance |
| US4389360A (en) * | 1979-12-15 | 1983-06-21 | Nippon Steel Corporation | Method of forming a protective coating on a long lance to be immersed in molten metal |
| JP2013057104A (en) * | 2011-09-08 | 2013-03-28 | Nippon Steel & Sumitomo Metal Corp | Deposition prevention method of ground metal to oxygen top-blowing lance at converter blowing |
| CN202730177U (en) * | 2012-06-11 | 2013-02-13 | 苏州宝联重工股份有限公司 | Non-steel adhesion slag splashing protection device |
| CN202730170U (en) * | 2012-06-11 | 2013-02-13 | 苏州宝联重工股份有限公司 | Novel non-steel adhesion converter sublance |
| CN102839254A (en) * | 2012-09-18 | 2012-12-26 | 苏州宝联重工股份有限公司 | Non-sticky steel converter oxygen lance and manufacturing method thereof |
| CN112341873A (en) * | 2020-11-04 | 2021-02-09 | 东南大学 | Long-acting anti-icing coating and preparation method and application thereof |
Non-Patent Citations (1)
| Title |
|---|
| 靳巍等: "氧枪喷头耐热覆层保护问题的探讨", 《山东冶金》, vol. 20, no. 1, pages 32 - 34 * |
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| Publication number | Publication date |
|---|---|
| CN115896388B (en) | 2023-12-19 |
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