CN1757682A - Metal-ceramic oxide(s) coating material, and its application - Google Patents
Metal-ceramic oxide(s) coating material, and its application Download PDFInfo
- Publication number
- CN1757682A CN1757682A CN 200410066937 CN200410066937A CN1757682A CN 1757682 A CN1757682 A CN 1757682A CN 200410066937 CN200410066937 CN 200410066937 CN 200410066937 A CN200410066937 A CN 200410066937A CN 1757682 A CN1757682 A CN 1757682A
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- coating
- ceramic oxide
- metal
- coating material
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- 238000000576 coating method Methods 0.000 title claims abstract description 37
- 239000011248 coating agent Substances 0.000 title claims abstract description 36
- 239000000463 material Substances 0.000 title claims abstract description 15
- 239000000919 ceramic Substances 0.000 title claims abstract description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 10
- 239000010959 steel Substances 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 229910000976 Electrical steel Inorganic materials 0.000 claims description 3
- 238000000137 annealing Methods 0.000 claims description 3
- 239000010960 cold rolled steel Substances 0.000 claims description 3
- 238000005246 galvanizing Methods 0.000 claims description 3
- 239000007888 film coating Substances 0.000 claims description 2
- 238000009501 film coating Methods 0.000 claims description 2
- 239000000843 powder Substances 0.000 abstract description 4
- QDOXWKRWXJOMAK-UHFFFAOYSA-N dichromium trioxide Chemical compound O=[Cr]O[Cr]=O QDOXWKRWXJOMAK-UHFFFAOYSA-N 0.000 abstract 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 1
- 230000003064 anti-oxidating effect Effects 0.000 abstract 1
- 229910052593 corundum Inorganic materials 0.000 abstract 1
- 229910001845 yogo sapphire Inorganic materials 0.000 abstract 1
- 238000005507 spraying Methods 0.000 description 9
- 238000005474 detonation Methods 0.000 description 6
- 150000001875 compounds Chemical class 0.000 description 5
- 238000010285 flame spraying Methods 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000011800 void material Substances 0.000 description 3
- 230000003245 working effect Effects 0.000 description 3
- 239000003963 antioxidant agent Substances 0.000 description 2
- 230000003078 antioxidant effect Effects 0.000 description 2
- 235000006708 antioxidants Nutrition 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000007750 plasma spraying Methods 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 238000007761 roller coating Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000007669 thermal treatment Methods 0.000 description 2
- 229910003310 Ni-Al Inorganic materials 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- -1 after heat treatment Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000005524 ceramic coating Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 239000011812 mixed powder Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011224 oxide ceramic Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
Landscapes
- Coating By Spraying Or Casting (AREA)
Abstract
A powder material for preparing the ceramic oxide coating used to prepare the pre-protecting layer on the surface of high-temp (1100 deg.C) furnace roller contains Al2O3 (50-85 Wt%), ZrO2-Y2O3 (5-20), CrB (5-25) and Cr2O3 (2-10). Its advantage is high anti-oxidizing, anticorrosion and anti-wear performance under high temp (1100 deg.C).
Description
Technical field:
The present invention relates to a kind of pre-protection overlay film coated powder material that is applied to State of Blast Furnace section furnace roller in cold-rolled steel sheet continuous annealing furnace in all steel mills, continuous hot galvanizing steel plate production line and the silicon steel production line; especially refer under 1100 ℃ of left and right sides high temperature, to have anti-oxidant, corrosion-resistant and anti abrasive metal-ceramic oxide (s) coating material.
Background technology:
At present, the following several Technologies of the normal employing of furnace roller spraying at home and abroad:
Adopt the plasma spraying oxide compound, for example Al
2O
3, Al
2O
3-TiO
2, ZrO-Y
2O
3, Cr
2O
3Deng, being characterized in that high temperature resistance, corrosion-proof wear performance are good, its shortcoming is a coating void content height (〉=3%); Coating and substrate combinating strength lower (30-60MPa); The coating resistance to thermal shocks is relatively poor, thereby practicality is relatively poor.
Adopt supersonic spray coating NiCr-Cr
2C
3Or the Co-WC powder, though this type coating bonding strength height (〉=70MPa), coating void content low (≤1%), resistance to elevated temperatures deficiency, wherein NiCr-Cr
3C
2Coating maximum limit use temperature is 815 ℃, and the Co-WC coating can only be fit to use below 530 ℃.Except that above-mentioned two types of coatings, the detonation flame spraying of employing metal-oxide ceramic coating is also arranged abroad, its typical case's representative is CoCrAlY+Al
2O
3, MCrAlY+SiO
2-ZrO
2Deng.This type coating resistance to high temperature oxidation, corrosive nature are fine, but weak point is at high temperature, and the furnace roller surface easily produces dross, and wear resistance is poor slightly, also remain further to be improved on work-ing life.
Summary of the invention:
Technical problem to be solved by this invention is exactly to overcome the defective that above-mentioned prior art exists, providing a kind of is intended under 1100 ℃ of left and right sides high temperature, have anti-oxidant, corrosion-resistant (thermal etching), the wear-resistant and good metal-ceramic oxide (s) coating material of resistive connection knurl performance, adopt the processing method of detonation flame spraying, the high quality high-temperature furnace roller coating that preparation is fine and close.
Concrete technical solution of the present invention is as follows:
A kind of metal-ceramic oxide (s) coating material, this material component comprises following component, below all is weight percentage:
Al
2O
3 50～85；
ZrO
2-Y
2O
3：5～20；
CrB：5～25；
Cr
2O
3：2～10。
Above-mentioned this material is applied to the application of the pre-protection overlay film coating of State of Blast Furnace section furnace roller in cold-rolled steel sheet continuous annealing furnace, continuous hot galvanizing steel plate production line and the silicon steel production line.
Coated substrate metallic substance of the present invention, fully test, analyze on the high-temperature material bases such as comparing CoCrAlY, CoNiCrAlY, NiCoCrAlY and CoCrAlTaY in process, selection and the suitable CoCrAlTaY of chemical constitution that adjusts are as coated substrate metal of the present invention.
CoCrAlTaY chemical constitution following (%):
| Element | Cr | Al | Ta | Y | C | Co |
| Content | 20-30 | 5-12 | 8-12 | 0.5-2.0 | ≤3.0 | Surplus |
In the chemical constitution, Co guarantees the hot strength essential element, and Cr and Al provide resistance to high temperature oxidation and hot corrosion resistance, and Y helps improving coating self bonding strength as an active element.The compound interpolation effect of Ta and C, be that coating is formed the disperse of TaC hard phase to be separated out after 800-1000 ℃ of thermal treatment, significantly improve hardness of metallic matrix own and wear resistance on the one hand, have the Cr of stopping, Al on the other hand to the coatingsurface diffusion, thereby the effect in work-ing life of the coating of prolongation is arranged.
Determining of mechanical synthesize ceramic oxide compound of the present invention, mechanical synthesize ceramic oxide compound helps further improving at high temperature wear-resisting, the anti-corrosion and resistive connection knurl performance of coating.Synthetics of the present invention is blended ceramic oxide and boride.
Mixture composed as follows (weight percent, %):
| Form | Al 2O 3 | ZrO 2-Y 2O 3 | CrB | Cr 2O 3 |
| Weight percent | 50～85 | 5～20 | 5～25 | 2～10 |
In coating, the compound interpolation total amount of mixture is 10～35% (weight percents).
The present invention adopts the processing method of detonation flame spraying, in the detonation gun body, high pressure exploded gas temperature can reach 4800 ℃ (temperature of supersonic spray coating flame stream is only about 2800 ℃), its shock wave pressure reaches 600Mpa, fires flame flow velocity Du Keda 2500M/S above (suitable with supersonic spray coating flame flow velocity degree); Because the detonation flame spraying gun barrel reaches 1 meter, so powder flight time in flame stream is longer than supersonic speed or plasma spraying.Just because of this, as long as reasonable control process parameters, the mixed powder of different melting points and different specific weight all can be heated to fusion or semi-melting state fully, and forms fine and close quality coating with shock impingement at workpiece surface.
Embodiment:
Can further be well understood to the present invention by specific embodiments of the invention given below, but they not limitation of the invention.
Substantive distinguishing features that the present invention gives prominence to and obvious improvement are concrete is embodied in following several aspect:
Embodiment 1:
| Form | Al 2O 3 | ZrO 2-Y 2O 3 | CrB | Cr 2O 3 |
| Weight percent | 60 | 12 | 18 | 10 |
Embodiment 2:
| Form | Al 2O 3 | ZrO 2-Y 2O 3 | CrB | Cr 2O 3 |
| Weight percent | 70 | 1O | 14 | 6 |
Embodiment 3:
| Form | Al 2O 3 | ZrO 2-Y 2O 3 | CrB | Cr 2O 3 |
| Weight percent | 85 | 6 | 6 | 3 |
It is as shown in the table for coating and fundamental characteristics thereof.
| Coating is formed | HV mean value | Coat-thickness um | Void content % | Coating and substrate combinating strength MPa | 1100 ℃ of oxidations coating pattern after 240 hours | |
| Embodiment 1 | CoCrALT aY+10% mixed oxide | 1100 | 180 | 0.83 | ≥85 | Coating is intact, and the surface forms the oxide film thin layer |
| Embodiment 2 | CoCrALT aY+20% mixed oxide | 1180 | 150 | 1.02 | ≥70 | Coating is intact, the surface forms the oxide film thin layer, and coating edge comes off on a small quantity |
| Embodiment 3 | CoCrALT aY+35% mixed oxide | 1200 | 135 | 1.10 | ≥65 | Coating is better, the surface forms the oxide film thin layer, cold and hot fatigue strength is poor slightly, and coating edge has and comes off |
As seen from table, the present invention adopts synthetic metal---the ceramic oxide of detonation flame spraying machinery, can obtain coating spiracular slit≤1.5%, bonding strength 〉=70Mpa high quality dense coating, after heat treatment, coating room temperature hardness 〉=1100HV has good high temperature oxidation resistance under 1100 ℃.
The present invention successively tests hundreds of of spraying high-temperature furnace rollers, and the longest run time, through manufacturer's check, coatingsurface was intact substantially, does not have obvious dross phenomenon to reach a year and a half, still can continue to use.Reduce situation according to the furnace roller surfaceness, can reach more than 3 years work-ing life at least.
Embodiment 4:
The high-temperature furnace roller appearance of the Ni-Al alloy coat of U.S. Drever company will be adopted.Enter the heat debugging at thermal treatment in May, 2003 stove, and changed the limit production limit debug phase in June, under the steel plate of find producing September steel bonding is arranged, check that the back finds that high-temperature furnace roller has tens tangible steel bonding dross phenomenon is arranged, several top coat local shedding is arranged.
The back uses coated material of the present invention to improve spraying back furnace rollers with two, on October 15th, 2003 stove of packing into.
On March 8th, 2004 was detected high-temperature furnace roller, found that the furnace roller of former Drever company spraying has 90% large-area steel bonding dross is arranged, other have 30% furnace roller coating big area peel off.And adopt two furnace rollers of spraying of the present invention to use still very near 1 year appearance, and there is not tangible steel bonding dross phenomenon, more there is not the coating shedding phenomenon.
Embodiment 5:
With several high-temperature furnace rollers use scrap after, repair again after adopting spraying of the present invention, come into operation on February 10th, 2004, to service condition feedback on September 10, furnace roller uses intact no coating shedding phenomenon, does not have tangible steel bonding dross phenomenon.
To those skilled in the art, only otherwise mentality of designing and the scope of leaving the inventor can be obvious as various changes and modifications also.
Claims (2)
1, a kind of metal-ceramic oxide (s) coating material is characterized in that this material component comprises following component, below all is weight percentage:
Al
2O
3 50～85；
ZrO
2-Y
2O
3：5～20；
CrB： 5～25；
Cr
2O
3： 2～10。
2, metal-ceramic oxide (s) coating material according to claim 1; it is characterized in that this material is applied to the application of the pre-protection overlay film coating of State of Blast Furnace section furnace roller in cold-rolled steel sheet continuous annealing furnace, continuous hot galvanizing steel plate production line and the silicon steel production line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410066937 CN1757682A (en) | 2004-10-09 | 2004-10-09 | Metal-ceramic oxide(s) coating material, and its application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410066937 CN1757682A (en) | 2004-10-09 | 2004-10-09 | Metal-ceramic oxide(s) coating material, and its application |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1757682A true CN1757682A (en) | 2006-04-12 |
Family
ID=36703258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410066937 Pending CN1757682A (en) | 2004-10-09 | 2004-10-09 | Metal-ceramic oxide(s) coating material, and its application |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1757682A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102102203A (en) * | 2010-12-20 | 2011-06-22 | 西安交通大学 | Preparation method of corrosion resistant FeAl intermetallic compound-based composite structure coating |
| CN104847685A (en) * | 2015-05-03 | 2015-08-19 | 陈思 | Corrosion--resisting sea water pump |
| CN112679231A (en) * | 2021-01-12 | 2021-04-20 | 广东金刚新材料有限公司 | Enhancement treatment method for ceramic roller |
-
2004
- 2004-10-09 CN CN 200410066937 patent/CN1757682A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102102203A (en) * | 2010-12-20 | 2011-06-22 | 西安交通大学 | Preparation method of corrosion resistant FeAl intermetallic compound-based composite structure coating |
| CN102102203B (en) * | 2010-12-20 | 2013-11-06 | 西安交通大学 | Preparation method of corrosion resistant FeAl intermetallic compound-based composite structure coating |
| CN104847685A (en) * | 2015-05-03 | 2015-08-19 | 陈思 | Corrosion--resisting sea water pump |
| CN112679231A (en) * | 2021-01-12 | 2021-04-20 | 广东金刚新材料有限公司 | Enhancement treatment method for ceramic roller |
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|---|---|---|---|
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| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |