CN1353156A - Antiwear friction-reducing anticorrosion paint for working surface of blower - Google Patents
Antiwear friction-reducing anticorrosion paint for working surface of blower Download PDFInfo
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- CN1353156A CN1353156A CN 01130429 CN01130429A CN1353156A CN 1353156 A CN1353156 A CN 1353156A CN 01130429 CN01130429 CN 01130429 CN 01130429 A CN01130429 A CN 01130429A CN 1353156 A CN1353156 A CN 1353156A
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- Prior art keywords
- blower
- test
- wear
- coating
- impeller
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- Structures Of Non-Positive Displacement Pumps (AREA)
- Paints Or Removers (AREA)
Abstract
An antiwear, friction-reducing and anticorrosion paint for the surface of a blower is prepared from fine teflon powder, polyurethane resin, fine Cr2O3 powder, titatium oxide powder, fine SiO2 powder and mixed solvent. It can elongate service life of blower by 50%.
Description
Technical field
The present invention relates generally to lubricated and high-abrasive material field, says definitely, and be to disclose a kind of Wear-resistant protective system, this coating is applicable to draught fan impeller and spiral case surface, plays a part to reduce surface abrasion, increase the service life.
Technical background
As everyone knows, materials such as molybdenumdisulphide, graphite, tetrafluoroethylene have good tribological property, are the solid lubricants of using always.Molybdenumdisulphide, graphite, tetrafluoroethylene separately or their title complex pass through homodisperse, mix with binding agent, additive, solvent, can be made into the bonding dry film lubrication coating of single-component or many components, when prepared coating uses, method by spraying, dip-coating or brushing is coated on the piece surface, in certain temperature condition with in the time, carry out drying or curing, promptly obtain certain thickness solid lubricant coating.
With the bonding dry film lubrication coating of tetrafluoroethylene, have the example of in industry such as machinery, Aeronautics and Astronautics, using as the primary lubricant agent.But, its execution conditions, use occasion, performance etc. are also differed from one another owing to main component binding agent, additive, solvent etc. have nothing in common with each other.
Summary of the invention
The object of the present invention is to provide a kind of Wear-resistant protective system that is used for the blower fan working-surface, it has excellent wear-resisting, self-lubricating property, particularly has excellent anti-high speed dust airflow scouring ability.
Wear-resistant protective system provided by the invention mainly is made up of tetrafluoroethylene, polyurethane resin binding agent, metal oxide filler, mixed solvent.
The used binding agent of the present invention is a polyurethane resin.
The used polyurethane resin of the present invention is the moisture-curable polyurethane resin.
Wear-resistant protective system provided by the invention, its used wear-resisting, oil pad is made up of fine polytetrafluoroethylpowder powder and metal oxide, and what metal oxide adopted is chromium sesquioxide fine powder, titanium dioxide and fine silica.
The weight percentage of Wear-resistant protective system of the present invention mainly is made up of moisture-curable polyurethane resin 6.0～36.0%, tetrafluoroethylene 10.0～30.0%, chromium sesquioxide 5.0～30.0%, titanium dioxide 2～10.0%, silicon-dioxide 0～10.0%, mixed solvent surplus.
The employed mixed solvent weight percentage of Wear-resistant protective system of the present invention consists of dimethylbenzene 20～80%, acetone 10～50%, ethyl acetate surplus.
According to the present invention, the preparation method of Wear-resistant protective system also is provided, this method comprises the following steps:
1) mixed solvent is joined in wear-resisting, the oil pad, carry out Ball milling.
2) ball milling is good filler and polyurethane glues thorough mixing disperse, and promptly obtain product.
Dry-film lubricant provided by the invention, its period of storage were not less than 1 year.
According to Wear-resistant protective system provided by the invention, by spraying method, be coated on the piece surface, be more than the RH70 in humidity, normal temperature is placed more than 48 hours down, has both obtained Wear-resistant corrosion protection coating provided by the invention.
Utilize some testing installations,, be easy to detect the performance of the present invention as a kind of Wear-resistant corrosion protection coating according to certain test method.With previously prepd metal testing plate, test block and test ring with sand papering or blast, clean up with acetone then, hot blast drying, the lotus 2B type spray gun that uses Shanghai Sprayer Factory to produce, under the air pressure of 0.2Mpa, Wear-resistant protective system provided by the invention is coated onto in test piece and the test block, be more than the RH70 in humidity, normal temperature is placed after 48 hours down, promptly can carry out performance test.
Can carry out the test of appearance of coat, thickness, sticking power, snappiness and shock-resistance by Chinese the countries concerned standard, the result is as follows. test event test result method of testing outward appearance green, 1 grade of GB/T1720-1979 pliability 1mm GB/T1731-1993 resistance to impact 50cm GB/T1732-1993 dry film wet-heat resisting of smooth range estimation thickness 8～24 υ m lever-type micrometer adhesive force (drawing the circle method) does not have corrosion phenomenon GB/T1740-1979
The test of tribological property is carried out on different trier.
On DFPM static and dynamic friction coefficient micrometric measurement instrument, measure the static and dynamic friction coefficient of coating.Test conditions is: load 200g, speed 90mm/min.The test antithesis is that steel ball is to coating.Coefficientoffriction
Moving=0.09, μ
Quiet=0.14.
The draught fan impeller of cigar mill's production usefulness and spiral case mainly are subjected to the cigarette ash in the high velocity air and the erosive wear of dust.The blade of impeller is worn, and uneven attenuate takes place, and occurs local worn out, fracture at last, and perhaps the transient equilibrium of impeller is not normal, thereby causes scrapping of impeller.
Vitrified bond test block of making and the test ring that is coated with coating of the present invention are made into the friction couple, on MRH-3 ring piece frictional testing machines, test.Test conditions is positive pressure 20N, rotating speed 500rpm, the frictional coefficient 0.19～0.29 that record this moment.Under similarity condition, be made into couple as if the test block of making and test with steel test ring and vitrified bond, frictional coefficient is 0.50～0.60.This simultaneous test can illustrate applying coating provided by the invention on draught fan impeller and spiral case working-surface, can play the frictional coefficient of reduction and cigarette ash and dust, reduces the wearing and tearing of impeller and spiral case, the effect that increases the service life.
Because main raw material tetrafluoroethylene that the present invention adopts and chromium sesquioxide are excellent corrosion resistant materials, coating provided by the invention also has good anti-corrosion.
Embodiment
Embodiment 1:
By following prescription, the preparation technology and the constructional method that provide according to this specification sheets apply and solidify more than 48 hours the working-surface of the draught fan impeller of test.
Polyurethane resin 27.0%
Tetrafluoroethylene 8.0%
Chromium sesquioxide 14.0%
Titanium dioxide 4.0%
Silicon-dioxide 2.0%
Dimethylbenzene 35.0%
Acetone 10.0%
Used impeller is the ARTN type, power 22kw, and total head is 3640Pa during work, free air delivery is 12000m
3/ h, rotating speed are 2590r/min, and impeller is the stainless steel Type of Welding, and diameter is greater than 600mm, and blade outer linear velocity is greater than 81m/s, and undressed impeller work-ing life is 8 months.On new impeller, apply coating of the present invention, examined its life-span.Reach more than 14 months the work-ing life of cated impeller.
Embodiment 2:
By following prescription, the preparation technology and the constructional method that provide according to this specification sheets apply and solidified 48 hours the working-surface of the draught fan impeller of test.
Polyurethane resin 20.0%
Tetrafluoroethylene 25.0%
Chromium sesquioxide 8.0%
Titanium dioxide 2.0%
Dimethylbenzene 30.0%
Acetone 10.0%
Ethyl acetate 5.0%
Used is the cast steel impeller, diameter 400mm, and rotating speed 6000r/min, undressed impeller work-ing life is 7～8 months.On new impeller, apply coating of the present invention, examined its life-span.Also reach more than 14 months the work-ing life of cated impeller.
Claims (2)
1, a kind of Wear-resistant protective system that is used for the blower fan working-surface is characterized in that the weight percentage of coating mainly is made up of moisture-curable polyurethane resin 6.0～36.0%, tetrafluoroethylene 10.0～30.0%, chromium sesquioxide 5.0～30.0%, titanium dioxide 2～10.0%, silicon-dioxide 0～10.0%, mixed solvent surplus.
2, coating as claimed in claim 1 is characterized in that the mixed solvent weight percentage consists of dimethylbenzene 20～80%, acetone 10～50%, ethyl acetate surplus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011304294A CN1164705C (en) | 2001-11-15 | 2001-11-15 | Antiwear friction-reducing anticorrosion paint for working surface of blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011304294A CN1164705C (en) | 2001-11-15 | 2001-11-15 | Antiwear friction-reducing anticorrosion paint for working surface of blower |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1353156A true CN1353156A (en) | 2002-06-12 |
| CN1164705C CN1164705C (en) | 2004-09-01 |
Family
ID=4669893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011304294A Expired - Fee Related CN1164705C (en) | 2001-11-15 | 2001-11-15 | Antiwear friction-reducing anticorrosion paint for working surface of blower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1164705C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102851104A (en) * | 2011-06-29 | 2013-01-02 | 沈阳黎明航空发动机(集团)有限责任公司 | High-temperature-resistant solid-film lubricant coating |
| CN104628304B (en) * | 2015-01-20 | 2016-11-02 | 安徽斯瑞尔阀门有限公司 | A kind of metal valve surface anticorrosion antioxidation nano ceramics composite coating |
-
2001
- 2001-11-15 CN CNB011304294A patent/CN1164705C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102851104A (en) * | 2011-06-29 | 2013-01-02 | 沈阳黎明航空发动机(集团)有限责任公司 | High-temperature-resistant solid-film lubricant coating |
| CN104628304B (en) * | 2015-01-20 | 2016-11-02 | 安徽斯瑞尔阀门有限公司 | A kind of metal valve surface anticorrosion antioxidation nano ceramics composite coating |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1164705C (en) | 2004-09-01 |
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