CN105132648A - Oxidation and decarbonization preventing coating during high-temperature treatment of workpieces - Google Patents
Oxidation and decarbonization preventing coating during high-temperature treatment of workpieces Download PDFInfo
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- CN105132648A CN105132648A CN201510537920.1A CN201510537920A CN105132648A CN 105132648 A CN105132648 A CN 105132648A CN 201510537920 A CN201510537920 A CN 201510537920A CN 105132648 A CN105132648 A CN 105132648A
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- Prior art keywords
- oxidation
- coating
- decarbonization
- workpieces
- parts
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Abstract
The invention discloses an oxidation and decarbonization preventing coating during high-temperature treatment of workpieces. The coating consists of Na2O.SiO2, Al2O3 and TiO2. The coating adopts relatively cheap industrial raw materials, is reasonable in formula, good in high temperature resistance and capable of greatly reducing oxidation and decarbonization during thermal treatment; and after the workpieces are heated, the coating can be automatically peeled off from the surface of a basal body, so that the coating has a very good application prospect.
Description
Technical field
The present invention relates to metal heating processing technology field of material technology, particularly relate to a kind of pyroprocessing workpiece anti-oxidation decarburizing coating.
Background technology
Often there is oxidative phenomena in ferrous materials, cause matrix corrosion and the superficial decarbonization of material, both made materials microstructure impaired, and turn increased the treatment process of scale removal and Decarburized layer in hot-work is produced, and had a strong impact on the economic benefit that ferrous materials is produced.Always the non-oxidation carbonization treatment how realizing workpiece pursues the problem of solution in industry.
Oxidation resistant coating is used to be one of method preventing oxidation and decarbonization in steel workpiece thermal treatment heat-processed.Develop and can have very real meaning by high temperature resistant, cheap antioxidant coating.
Summary of the invention
Object of the present invention is exactly defect for above-mentioned existence and provides a kind of pyroprocessing workpiece anti-oxidation decarburizing coating.The present invention adopts cheaper industrial raw material, and rationally, resistance to elevated temperatures is good, oxidation and decarbonization during thermal treatment significantly can be reduced, and after workpiece heat, coating can be peeled off voluntarily from matrix surface, has good application prospect for formula.
A kind of pyroprocessing workpiece anti-oxidation decarburizing coating technology scheme of the present invention is that this coating is by Na
2oSiO
2, Al
2o
3, TiO
2composition;
By Na by weight
2onSiO
230-60 part, Al
2o
320-40 part, TiO
210-30 part forms.
Preferably, by Na by weight
2onSiO
245 parts, Al
2o
330 parts, TiO
220 parts of compositions.
Or by Na by weight
2onSiO
240 parts, Al
2o
325 parts, TiO
215 parts of compositions.
Na
2onSiO
2middle n is 1.2-3.N is preferably 1.8.
Coat-thickness is 0.5-3.5mm.Be preferably 2.5mm.
Adopt coating of the present invention to carry out workpiece protection, be incorporated to stove and be heated to austenitizing, quenching of coming out of the stove after insulation terminates, the workpiece surface after quenching is sparkling clean, protected non-oxidation, decarburization phenomenon.
A kind of pyroprocessing workpiece anti-oxidation decarburizing coating beneficial effect of the present invention is: coated material preparation technology of the present invention is simple, screening characteristics is good, oxidation and decarbonization during thermal treatment is significantly reduced, the process redundancy needing heat treated part can be reduced, effectively can prevent the oxidation and decarbonization of steel at 850-1300 DEG C, and good from stripping property during cooling, after workpiece heat, coating can be peeled off voluntarily from matrix surface, thus de-scaling operation when decreasing rolling, do not affect steel rolling precision; Coating price is cheap simultaneously, therefore has good application prospect.
embodiment:
In order to understand the present invention better, describe technical scheme of the present invention in detail with specific examples below, but the present invention is not limited thereto.
Embodiment 1
A kind of pyroprocessing workpiece anti-oxidation decarburizing coating of the present invention,
By Na by weight
2onSiO
245 parts, Al
2o
330 parts, TiO
220 parts of compositions.
Na
2onSiO
2middle n is 1.8.
Thickness is 2.5mm.
Adopt coating of the present invention to carry out workpiece protection, be incorporated to stove and be heated to austenitizing, quenching of coming out of the stove after insulation terminates, the workpiece surface after quenching is sparkling clean, protected non-oxidation, decarburization phenomenon.This coating can prevent the oxidation and decarbonization of steel effectively at 850-1300 DEG C, and good from stripping property during cooling.
Embodiment 2
A kind of pyroprocessing workpiece anti-oxidation decarburizing coating of the present invention, by Na by weight
2onSiO
240 parts, Al
2o
325 parts, TiO
215 parts of compositions.
Na
2onSiO
2middle n is 3.
Thickness is 0.5mm.
Adopt coating of the present invention to carry out workpiece protection, be incorporated to stove and be heated to austenitizing, quenching of coming out of the stove after insulation terminates, the workpiece surface after quenching is sparkling clean, protected non-oxidation, decarburization phenomenon.This coating can prevent the oxidation and decarbonization of steel effectively at 850-1300 DEG C, and good from stripping property during cooling.
Embodiment 3
A kind of pyroprocessing workpiece anti-oxidation decarburizing coating of the present invention,
By Na by weight
2onSiO
230 parts, Al
2o
320 parts, TiO
210 parts of compositions.
Na
2onSiO
2middle n is 1.2.
Thickness is 2mm.
Adopt coating of the present invention to carry out workpiece protection, be incorporated to stove and be heated to austenitizing, quenching of coming out of the stove after insulation terminates, the workpiece surface after quenching is sparkling clean, protected non-oxidation, decarburization phenomenon.This coating can prevent the oxidation and decarbonization of steel effectively at 850-1300 DEG C, and good from stripping property during cooling.
Claims (8)
1. a pyroprocessing workpiece anti-oxidation decarburizing coating, is characterized in that, by Na
2oSiO
2, Al
2o
3, TiO
2composition.
2. a kind of pyroprocessing workpiece anti-oxidation decarburizing coating according to claim 1, is characterized in that, by Na by weight
2onSiO
230-60 part, Al
2o
320-40 part, TiO
210-30 part forms.
3. a kind of pyroprocessing workpiece anti-oxidation decarburizing coating according to claim 1, is characterized in that, by Na by weight
2onSiO
245 parts, Al
2o
330 parts, TiO
220 parts of compositions.
4. a kind of pyroprocessing workpiece anti-oxidation decarburizing coating according to claim 1, is characterized in that, by Na by weight
2onSiO
240 parts, Al
2o
325 parts, TiO
215 parts of compositions.
5. a kind of pyroprocessing workpiece anti-oxidation decarburizing coating according to claim 1, is characterized in that, Na
2onSiO
2middle n is 1.2-3.
6. a kind of pyroprocessing workpiece anti-oxidation decarburizing coating according to claim 1, is characterized in that, Na
2onSiO
2middle n is 1.8.
7. a kind of pyroprocessing workpiece anti-oxidation decarburizing coating according to claim 1, it is characterized in that, coat-thickness is 0.5-3.5mm.
8. a kind of pyroprocessing workpiece anti-oxidation decarburizing coating according to claim 1, it is characterized in that, coat-thickness is 2.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510537920.1A CN105132648A (en) | 2015-08-28 | 2015-08-28 | Oxidation and decarbonization preventing coating during high-temperature treatment of workpieces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510537920.1A CN105132648A (en) | 2015-08-28 | 2015-08-28 | Oxidation and decarbonization preventing coating during high-temperature treatment of workpieces |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105132648A true CN105132648A (en) | 2015-12-09 |
Family
ID=54718213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510537920.1A Pending CN105132648A (en) | 2015-08-28 | 2015-08-28 | Oxidation and decarbonization preventing coating during high-temperature treatment of workpieces |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105132648A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101058684A (en) * | 2006-04-21 | 2007-10-24 | 中国科学院过程工程研究所 | High temperature common mild steel anti-oxidation coating and application thereof |
| CN101250462A (en) * | 2008-03-28 | 2008-08-27 | 西北有色金属研究院 | Rare metal high-heat anti-oxidation lubricating paint and preparation method thereof |
| CN101462857A (en) * | 2009-01-16 | 2009-06-24 | 中国科学院过程工程研究所 | High temperature protective coating for carbon steel |
| CN102532963A (en) * | 2012-02-14 | 2012-07-04 | 武汉钢铁(集团)公司 | Bearing steel high temperature heating protective coating and using method thereof |
-
2015
- 2015-08-28 CN CN201510537920.1A patent/CN105132648A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101058684A (en) * | 2006-04-21 | 2007-10-24 | 中国科学院过程工程研究所 | High temperature common mild steel anti-oxidation coating and application thereof |
| CN101250462A (en) * | 2008-03-28 | 2008-08-27 | 西北有色金属研究院 | Rare metal high-heat anti-oxidation lubricating paint and preparation method thereof |
| CN101462857A (en) * | 2009-01-16 | 2009-06-24 | 中国科学院过程工程研究所 | High temperature protective coating for carbon steel |
| CN102532963A (en) * | 2012-02-14 | 2012-07-04 | 武汉钢铁(集团)公司 | Bearing steel high temperature heating protective coating and using method thereof |
Non-Patent Citations (2)
| Title |
|---|
| B. KAUR ET AL.: "Corrosion study of SiO2–CaO–Al2O3–Na2O–TiO2 glass coating on steel", 《SURFACE ENGINEERING》 * |
| 李铭臻等: "《建筑材料》", 31 May 1988 * |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151209 |
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| RJ01 | Rejection of invention patent application after publication |