CN106010220B - A kind of polyimide coating formula and roots blower and coating processes for roots blower - Google Patents
A kind of polyimide coating formula and roots blower and coating processes for roots blower Download PDFInfo
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- CN106010220B CN106010220B CN201610429370.6A CN201610429370A CN106010220B CN 106010220 B CN106010220 B CN 106010220B CN 201610429370 A CN201610429370 A CN 201610429370A CN 106010220 B CN106010220 B CN 106010220B
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- coating
- impeller
- driven
- roots blower
- casing
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Classifications
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D179/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen, with or without oxygen, or carbon only, not provided for in groups C09D161/00 - C09D177/00
- C09D179/04—Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors
- C09D179/08—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/18—Fireproof paints including high temperature resistant paints
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C18/12—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
- F04C18/14—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
A kind of polyimides composite coating formula and roots blower and coating processes for roots blower, by being coated with polyimide coating on the inwall on the surface of active impeller and driven impeller and casing, realize that the gap between the gap between two impellers and impeller and housing is reduced to 0 0.05mm, greatly improve fan efficiency.The coating has the characteristics that wear-resisting, low-friction coefficient, corrosion-resistant, high temperature resistant, and the contact between coating and coating is soft and frictional force very little, will not cause metallic impeller framework and deform or corroded by external oxidation because of collision.
Description
The present invention relates to roots blower technical field, and in particular to a kind of polyimides composite coating for roots blower
Formula and roots blower and coating processes.
Background technology
The gap that the operating efficiency of roots blower is depended between the gap between two impellers and impeller and housing,
Gap can cause blower fan to produce backflow, that is to say, that the operating efficiency of the smaller blower fan in gap is higher.
Traditional Roots Blower Impeller and housing are all simple metal, and the excessively small blower fan in gap between counterface will block
Extremely, it is low that fan efficiency is excessively may result in greatly, so fan efficiency depends entirely on the machining accuracy of lathe.It is domestic at present compared with
Digging machining center for advanced way curved surface can only also be such that the gap of counterface maintains between 0.10-0.15mm.Except this it
Outside, simple metal impeller is oxidized easily corrosion, causes fan life to be influenceed by the use environment of blower fan.
The content of the invention
In order to solve the deficiencies in the prior art, of the invention provides a kind of compound painting of the polyimides for roots blower
Layer formula and roots blower and coating processes.
The technical solution that the present invention uses is：A kind of polyimides composite coating formula for roots blower, press
Mass percent meter, including following components：20-80% polyimides, 0-30% polysulfones, 10-50% polyether-ether-ketone, 0-20%
Graphite, 5-20% lubricant molybdenum disulfide.
A kind of roots blower using polyimides composite coating formula, including casing, have in described casing flat
The driving shaft and driven shaft that row is set, the driving shaft and driven shaft are supported in the bearing hole of casing through bearing, described
Active impeller is connected with driving shaft, driven impeller is connected with described driven shaft, the input of described driving shaft is provided with
Belt pulley, described driving shaft are connected with driven shaft by synchromesh gear, the surface of described active impeller and driven impeller with
And polyimide coating is coated with the inwall of casing, described coating layer thickness is 0.05mm ± 0.01mm.
One end of described casing is additionally provided with gear end wall panel, described gear end wall panel and active impeller and driven impeller
Counterface on be also coated with polyimide coating.
The outermost layer of described active impeller and the polyimide coating on driven impeller surface is adjustment layer, described active
Mutually moved between impeller and driven impeller along adjustment layer track.
The gap of described active impeller and driven impeller and casing inner wall is 0-0.05mm.
Described gear end wall panel is provided with bearing block, and described synchromesh gear is fixed on the driving shaft by fastener
On driven shaft, the driving shaft and driven shaft are supported in the bearing block through bearing.
A kind of coating processes of the polyimides composite coating formula of roots blower, comprise the following steps：
1st, the polyimides composite coating formula according to claim 1 is prepared and is mixed into polyimide paint；
2nd, workpiece is placed at a temperature of 120 DEG C and preheats 20min；
3rd, workpiece surface coating polyimide coating after preheat；
4th, be coated with polyimide coating workpiece be placed in 180 DEG C under the conditions of 60min precipitations, the air in coating is taken off
Go out；
5th, hot setting 30min under the conditions of the workpiece after precipitation is terminated is placed in 260 DEG C, produce required polyimides and apply
Layer.
Described surface is applied to spraying.
The beneficial effects of the invention are as follows：The invention provides a kind of polyimides composite coating formula for roots blower
And roots blower and coating processes, by being coated with polyamides on the inwall on the surface of active impeller and driven impeller and casing
Imines coating, realize that the gap between the gap between two impellers and impeller and housing is reduced to 0-0.05mm, carry significantly
Fan efficiency is risen.The coating has the characteristics that wear-resisting, low-friction coefficient is corrosion-resistant, high temperature resistant, and between coating and coating
Contact be soft and frictional force very little, metallic impeller framework collision deformation or oxide etch will not be caused.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention.
Fig. 2 is sectional view of the present invention.
Fig. 3 is active impeller structural representation of the present invention.
Fig. 4 is active impeller structure sectional view of the present invention.
Fig. 5 is driven impeller structural representation of the present invention.
Fig. 6 is driven impeller structure sectional view of the present invention.
1- casings in figure, 2- driving shafts, 3- driven shafts, 4- belt pulleys, 5- synchromesh gears, 6- polyimide coatings, 7- teeth
Take turns end wall panel, 21- active impellers, 31- driven impellers.
Embodiment
The present invention is further described in conjunction with Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, one kind is used for roots blower
Polyimides composite coating formula, by mass percentage, including following components：20-80% polyimides, 0-30%'s is poly-
Sulfone, 10-50% polyether-ether-ketone, 0-20% graphite, 5-20% lubricant molybdenum disulfide.Using molybdenum disulfide as lubricant
So as to reduce the coefficient of friction of coating.
A kind of coating processes of the polyimides composite coating formula of roots blower, comprise the following steps：
（1）Prepared by above-mentioned polyimides composite coating formula and be mixed into polyimide paint；
（2）Workpiece is placed at a temperature of 120 DEG C and preheats 20min；
（3）Workpiece surface spraying polyimide paint after preheat；
（4）60min precipitations under the conditions of the workpiece for being coated with polyimide coating is placed in into 180 DEG C, by the air in coating
Abjection；
（5）Hot setting 30min under the conditions of workpiece after precipitation is terminated is placed in 260 DEG C, produce required polyimides and answer
Close coating.
Coating processes of the present invention use the pre-warmed step of first workpiece, the workpiece after preheating is also turned into a heating
Source, makes the surfaces externally and internally of coating have heating, uniformly, coating quality it is good.
This coating has already been through the ASTM B-117 salt mist experiments of 240 hours, can effectively prevent draught fan impeller, bearing
Seat and housing are oxidized corrosion, substantially increase the service life of blower fan.
A kind of roots blower using polyimides composite coating formula, including casing 1, described casing 1 is interior to be had
The driving shaft 2 and driven shaft 3 be arrangeding in parallel, the driving shaft 2 and driven shaft 3 are supported on the bearing hole of casing 1 through bearing
It is interior, active impeller 21 is connected with described driving shaft 2, driven impeller 31, described active are connected with described driven shaft 3
The input of axle 2 is provided with belt pulley 4, and described driving shaft 2 and driven shaft 3 are connected by synchromesh gear 5, described active impeller
21 on the surface of driven impeller 31 and the inwall of casing 1 with being coated with polyimide coating 6, and described coating layer thickness is
0.05mm±0.01mm.Described active impeller 21 and the outermost layer of the polyimide coating 6 on the surface of driven impeller 31 are break-in
Layer, described active impeller 21 and driven impeller 31 and casing 1, gear end wall panel 7 adjustment layer will phase mutual friction and
Break-in goes out new impeller track.One end of described casing 1 is additionally provided with gear end wall panel 7, described gear end wall panel 7 and active
Impeller 21 on the counterface of driven impeller 31 with being also coated with polyimide coating 6.
Described active impeller 21 and driven impeller 31 and the gap of the inwall of casing 1 are 0-0.05mm.
Described gear end wall panel 7 is provided with bearing block, and described synchromesh gear 5 is fixed on the active by fastener
On axle 2 and driven shaft 3, the driving shaft 2 and driven shaft 3 are supported in the bearing block through bearing.
The roots blower of the present invention is coated with one layer on impeller, the counterface such as housing and the inner side of gear end wall panel 7
Polyimides composite coating, coating layer thickness 0.05mm.The coating can make the gap and impeller and housing between two impellers
Between gap be reduced to 0-0.05mm, greatly improve fan efficiency.The coating have wear-resisting, low-friction coefficient, it is corrosion-resistant,
The features such as high temperature resistant, and the contact between coating and coating is soft and frictional force very little, will not cause metallic impeller bone
Frame collision deformation and damage.After blower fan operates a period of time, blower interior temperature can raise, the impeller of blower fan will thermal expansion,
Now the coating on impeller will phase mutual friction and break-in go out one of new impeller track, impeller track at this moment is exactly optimal
Track.
Described above is only the preferred embodiment of the present invention, and protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical schemes belonged under thinking of the present invention belong to protection scope of the present invention.It should be pointed out that for the art
Those of ordinary skill for, some improvements and modifications without departing from the principles of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (6)
1. a kind of roots blower using polyimides composite coating formula, including casing（1）, described casing（1）Inside it is provided with
There is the driving shaft be arrangeding in parallel（2）And driven shaft（3）, the driving shaft（2）And driven shaft（3）Casing is supported on through bearing
（1）Bearing hole in, described driving shaft（2）On be connected with active impeller（21）, described driven shaft（3）On be connected with it is driven
Impeller（31）, described driving shaft（2）Input be provided with belt pulley（4）, described driving shaft（2）And driven shaft（3）Pass through
Synchromesh gear（5）Connection, it is characterised in that described active impeller（21）With driven impeller（31）Surface and casing（1）
Inwall on be coated with polyimide coating（6）, described coating layer thickness is 0.05mm ± 0.01mm, described casing（1）'s
One end is additionally provided with gear end wall panel（7）, described gear end wall panel（7）With active impeller（21）With driven impeller（31）Cooperation
Polyimide coating is also coated with end face（6）, described active impeller（21）With driven impeller（31）And casing（1）, tooth
Take turns end wall panel（7）Adjustment layer will phase mutual friction and break-in go out one of new impeller track, described polyimide coating
（6）By mass percentage, including following components：20-80% polyimides, 0-30% polysulfones, 10-50% polyether-ether-ketone,
0-20% graphite, 5-20% lubricant molybdenum disulfide.
A kind of 2. roots blower according to claim 1, it is characterised in that described active impeller（21）With driven impeller
（31）The polyimide coating on surface（6）Outermost layer be adjustment layer.
A kind of 3. roots blower according to claim 1, it is characterised in that described active impeller（21）And driven impeller
（31）With casing（1）The gap of inwall is 0-0.05mm.
A kind of 4. roots blower according to claim 2, it is characterised in that described gear end wall panel（7）It is provided with axle
Bearing, described synchromesh gear（5）The driving shaft is fixed on by fastener（2）And driven shaft（3）On, the driving shaft
（2）And driven shaft（3）It is supported on through bearing in the bearing block.
A kind of 5. coating processes of the polyimides composite coating formula of the roots blower described in claim 1, it is characterised in that
Comprise the following steps：
（1）Polyimide coating formula according to claim 1 is prepared and is mixed into polyimide paint；
（2）Workpiece is placed at a temperature of 120 DEG C and preheats 20min；
（3）Workpiece surface coating polyimide coating after preheat；
（4）Be coated with polyimide coating workpiece be placed in 180 DEG C under the conditions of 60min precipitations, by coating air deviate from；
（5）Hot setting 30min under the conditions of workpiece after precipitation is terminated is placed in 260 DEG C, produces required polyimide coating.
6. the coating processes of polyimides composite coating formula according to claim 5, it is characterised in that described table
Face is applied to spraying.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610429370.6A CN106010220B (en) | 2016-06-17 | 2016-06-17 | A kind of polyimide coating formula and roots blower and coating processes for roots blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610429370.6A CN106010220B (en) | 2016-06-17 | 2016-06-17 | A kind of polyimide coating formula and roots blower and coating processes for roots blower |
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| Publication Number | Publication Date |
|---|---|
| CN106010220A CN106010220A (en) | 2016-10-12 |
| CN106010220B true CN106010220B (en) | 2018-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610429370.6A Active CN106010220B (en) | 2016-06-17 | 2016-06-17 | A kind of polyimide coating formula and roots blower and coating processes for roots blower |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107434942B (en) * | 2017-08-16 | 2019-12-03 | 宜宾天原集团股份有限公司 | A kind of modified polyether ether ketone coating and its preparation and coating method |
| CN110374872A (en) * | 2019-08-28 | 2019-10-25 | 南通晨光石墨设备有限公司 | Blower |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1862044A (en) * | 2005-04-29 | 2006-11-15 | 米巴·格来特来格有限公司 | Bearing element |
| CN1975188A (en) * | 2005-09-16 | 2007-06-06 | 米巴·格来特来格有限公司 | Bearing element |
| CN101553543A (en) * | 2006-08-02 | 2009-10-07 | 米巴·格来特来格有限公司 | Anti-friction lacquer |
| KR20140011627A (en) * | 2012-07-18 | 2014-01-29 | 동양피스톤 주식회사 | Low friction resin composition and coating material for automobile engine including the same |
| CN204663880U (en) * | 2015-03-05 | 2015-09-23 | 盛鼓（天津）风机有限公司 | A kind of Roots blower |
-
2016
- 2016-06-17 CN CN201610429370.6A patent/CN106010220B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1862044A (en) * | 2005-04-29 | 2006-11-15 | 米巴·格来特来格有限公司 | Bearing element |
| CN1975188A (en) * | 2005-09-16 | 2007-06-06 | 米巴·格来特来格有限公司 | Bearing element |
| CN101553543A (en) * | 2006-08-02 | 2009-10-07 | 米巴·格来特来格有限公司 | Anti-friction lacquer |
| KR20140011627A (en) * | 2012-07-18 | 2014-01-29 | 동양피스톤 주식회사 | Low friction resin composition and coating material for automobile engine including the same |
| CN204663880U (en) * | 2015-03-05 | 2015-09-23 | 盛鼓（天津）风机有限公司 | A kind of Roots blower |
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| CN106010220A (en) | 2016-10-12 |
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