CN112961576B - Preparation method of molybdenum disulfide coating - Google Patents
Preparation method of molybdenum disulfide coating Download PDFInfo
- Publication number
- CN112961576B CN112961576B CN202110323749.XA CN202110323749A CN112961576B CN 112961576 B CN112961576 B CN 112961576B CN 202110323749 A CN202110323749 A CN 202110323749A CN 112961576 B CN112961576 B CN 112961576B
- Authority
- CN
- China
- Prior art keywords
- molybdenum disulfide
- gear
- solvent
- rotary arm
- cylindrical container
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 title claims abstract description 99
- 229910052982 molybdenum disulfide Inorganic materials 0.000 title claims abstract description 99
- 239000011248 coating agent Substances 0.000 title claims abstract description 38
- 238000000576 coating method Methods 0.000 title claims abstract description 38
- 238000002360 preparation method Methods 0.000 title claims abstract description 8
- 238000003756 stirring Methods 0.000 claims abstract description 51
- 239000002904 solvent Substances 0.000 claims abstract description 45
- 239000000843 powder Substances 0.000 claims abstract description 44
- 238000002156 mixing Methods 0.000 claims abstract description 26
- 238000005507 spraying Methods 0.000 claims abstract description 20
- 239000011259 mixed solution Substances 0.000 claims abstract description 19
- 239000000853 adhesive Substances 0.000 claims abstract description 11
- 230000001070 adhesive effect Effects 0.000 claims abstract description 11
- 239000000725 suspension Substances 0.000 claims abstract description 10
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 9
- 239000003085 diluting agent Substances 0.000 claims abstract description 9
- 238000010438 heat treatment Methods 0.000 claims abstract description 6
- 238000004140 cleaning Methods 0.000 claims abstract description 4
- 230000007246 mechanism Effects 0.000 claims description 29
- 230000007704 transition Effects 0.000 claims description 27
- 238000007599 discharging Methods 0.000 claims description 22
- 239000000463 material Substances 0.000 claims description 22
- 238000000034 method Methods 0.000 claims description 17
- 238000001132 ultrasonic dispersion Methods 0.000 claims description 16
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical group CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 9
- MLFHJEHSLIIPHL-UHFFFAOYSA-N isoamyl acetate Chemical compound CC(C)CCOC(C)=O MLFHJEHSLIIPHL-UHFFFAOYSA-N 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 6
- 239000004952 Polyamide Substances 0.000 claims description 5
- 239000003822 epoxy resin Substances 0.000 claims description 5
- 239000002245 particle Substances 0.000 claims description 5
- 229920002647 polyamide Polymers 0.000 claims description 5
- 229920000647 polyepoxide Polymers 0.000 claims description 5
- SVONRAPFKPVNKG-UHFFFAOYSA-N 2-ethoxyethyl acetate Chemical compound CCOCCOC(C)=O SVONRAPFKPVNKG-UHFFFAOYSA-N 0.000 claims description 3
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 claims description 3
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 claims description 3
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 claims description 3
- 229940117955 isoamyl acetate Drugs 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 239000008096 xylene Substances 0.000 claims description 3
- 238000005054 agglomeration Methods 0.000 abstract description 6
- 230000002776 aggregation Effects 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000001050 lubricating effect Effects 0.000 abstract description 3
- 239000011253 protective coating Substances 0.000 abstract description 2
- 230000000903 blocking effect Effects 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 2
- 238000011031 large-scale manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
Images
Classifications
-
- 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
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F31/00—Mixers with shaking, oscillating, or vibrating mechanisms
- B01F31/80—Mixing by means of high-frequency vibrations above one kHz, e.g. ultrasonic vibrations
- B01F31/85—Mixing by means of high-frequency vibrations above one kHz, e.g. ultrasonic vibrations with a vibrating element inside the receptacle
-
- 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
-
- 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
- C09D7/80—Processes for incorporating ingredients
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3009—Sulfides
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
- Lubricants (AREA)
Abstract
The invention belongs to the technical field of production and processing of novel lubricating protective coatings, and particularly relates to a preparation method of a molybdenum disulfide coating, which comprises the following steps: adding 5 parts by weight of molybdenum disulfide powder into 50-60 parts by weight of solvent, and uniformly dispersing the molybdenum disulfide powder into the solvent by adopting ultrasonic mixing and stirring equipment to obtain a suspension A; mixing and stirring the suspension A and 35-40 parts of adhesive uniformly to obtain a mixed solution A, heating the mixed solution A to 55-60 ℃, simultaneously vacuumizing to volatilize the solvent to obtain a mixed solution B, mixing the mixed solution B with 80 parts of diluent and 8-12 parts of curing agent, and stirring uniformly to obtain a molybdenum disulfide coating; and (2) spraying, namely cleaning and airing the surface of the workpiece, uniformly spraying the molybdenum disulfide coating on the surface of the workpiece, wherein the spraying dosage is 15-30 g/square meter, naturally airing, and then performing secondary spraying, wherein the secondary spraying dosage is 25-30 g/square meter, and naturally airing to obtain the molybdenum disulfide coating. The invention avoids the agglomeration phenomenon of molybdenum disulfide fine powder and improves the mechanical protection performance of the coating.
Description
Technical Field
The invention belongs to the technical field of production and processing of novel lubricating protective coatings, and particularly relates to a preparation method of a molybdenum disulfide coating.
Background
The molybdenum disulfide is widely applied to the coating of the metal parts, and has excellent lubricating, wear-resisting and corrosion-resisting properties. However, molybdenum disulfide is generally powdery and has a small particle size, and agglomeration phenomenon easily occurs when the fine powder is mixed with other components in the coating, namely a plurality of molybdenum disulfide particles are agglomerated together, and the agglomeration phenomenon is difficult to be perceived by naked eyes and cannot be overcome by a traditional stirring mode, and the agglomeration phenomenon can cause the mechanical protective property of the coating to be influenced by the uneven distribution of molybdenum disulfide.
Disclosure of Invention
The invention aims to provide a preparation method of a molybdenum disulfide coating, which can improve the uniformity of molybdenum disulfide in the coating and improve the mechanical protection performance of the coating.
The technical scheme adopted by the invention is as follows:
a preparation method of a molybdenum disulfide coating comprises the following steps:
preparing molybdenum disulfide coating, adding 5 parts of molybdenum disulfide powder into 50-60 parts of solvent according to parts by weight, and uniformly dispersing the molybdenum disulfide powder into the solvent by adopting ultrasonic mixing and stirring equipment to obtain suspension A, wherein the particle size of the molybdenum disulfide powder is less than 3 mu m;
mixing and stirring the suspension A and 35-40 parts of adhesive uniformly to obtain a mixed solution A, heating the mixed solution A to 55-60 ℃ through a reaction kettle, vacuumizing the reaction kettle simultaneously to volatilize the solvent in the mixed solution A and discharge the volatilized solvent through a vacuumizing pipeline to obtain a mixed solution B, mixing the mixed solution B with 80 parts of diluent and 8-12 parts of curing agent, and stirring uniformly to obtain a molybdenum disulfide coating;
and (2) spraying, namely cleaning and airing the surface of the workpiece, uniformly spraying the molybdenum disulfide coating on the surface of the workpiece, wherein the spraying dosage is 15-30 g/square meter, naturally airing, and then performing secondary spraying, wherein the secondary spraying dosage is 25-30 g/square meter, and naturally airing to obtain the molybdenum disulfide coating.
The solvent is acetone, the adhesive is epoxy resin, the curing agent is polyamide, and the diluent is one or a mixture of xylene, butyl acetate, isoamyl acetate and ethylene glycol monoethyl ether acetate.
53 parts of acetone, 41 parts of epoxy resin and 10 parts of polyamide.
When the molybdenum disulfide is mixed with the solvent, the molybdenum disulfide is divided into a plurality of parts, the molybdenum disulfide is added into the solvent part by part, ultrasonic dispersion is carried out for a period of time after each molybdenum disulfide powder is added, and then the molybdenum disulfide powder is added for the next time until all the molybdenum disulfide powder is mixed with the solvent.
The ultrasonic mixing and stirring equipment comprises an annular stirring barrel, wherein an upright post is arranged in the center of the annular stirring barrel, a rotary arm is rotatably arranged above the upright post, a motor for driving the rotary arm to rotate is arranged on the upright post, two ends of the rotary arm are respectively provided with an ultrasonic dispersion unit, the ultrasonic dispersion unit comprises a cylindrical container with an open upper end and a closed lower end, the side wall of the cylindrical container is provided with a movable door capable of communicating or isolating the inner cavity of the cylindrical container with the inner cavity of the annular stirring barrel, the movable door is movably arranged along the circumference of the cylindrical container, and an ultrasonic transducer fixedly connected with the rotary arm is arranged in the cylindrical container; a discharging pipe is arranged above the cylindrical container and is communicated with a discharging port at the bottom of the hopper arranged above the annular stirring barrel through a rotary joint; the lower end of the blanking pipe is provided with a quantitative discharging mechanism; the specific method for mixing the molybdenum disulfide and the solvent comprises the following steps: the method comprises the steps of feeding molybdenum disulfide powder into a hopper, injecting a solvent into an annular stirring barrel, starting ultrasonic mixing and stirring equipment to enable a rotary arm to start rotating, controlling a movable door to be closed, isolating a cylindrical container from the annular stirring barrel, controlling a quantitative feeding mechanism to feed a certain amount of molybdenum disulfide powder into the cylindrical container, starting an ultrasonic transducer to fully disperse the molybdenum disulfide powder in the solvent in the cylindrical container, controlling the movable door to be opened after the molybdenum disulfide powder is dispersed for a period of time, communicating the cylindrical container with the annular stirring barrel, gradually scattering liquid in the cylindrical container along with the rotation of the rotary arm into the annular stirring barrel, controlling the movable door to be closed again after the molybdenum disulfide powder is dispersed in the whole annular stirring barrel, and repeating the feeding process until all the molybdenum disulfide powder is dispersed in the solvent.
The movable door is rotationally connected with the rotary arm through a support and a pipe shaft, and the ultrasonic transducer is fixedly connected with the rotary arm and extends into the cylindrical container from a central hole of the pipe shaft; clutch mechanisms are arranged among the pipe shaft, the rotary arm and the upright post, and are assembled to have the following two stations: in the first station, the tubular shaft can rotate along with the rotation of the rotary arm, and at the moment, the tubular shaft can drive the movable door to be closed or opened; and a second station, wherein the tubular shaft and the rotary arm are relatively fixed, and the movable door can be kept in an open or closed state at the moment.
The clutch mechanism comprises a first gear fixedly connected with the tubular shaft, and a second gear, a third gear and a fourth gear which are rotatably connected with the revolving arm, wherein the first gear is meshed with the second gear, the third gear is coaxially arranged with the second gear, the third gear is meshed with the fourth gear, the upright post is provided with a telescopic rod, the telescopic rod is circumferentially fixed and axially slidably connected with the upright post through a sliding key, the telescopic rod is connected with a cylinder arranged on the upright post, the telescopic rod is provided with a fifth gear and a sixth gear, the fifth gear is fixedly connected with the telescopic rod, the sixth gear is circumferentially rotated and axially fixedly connected with the telescopic rod through a bearing, and the sixth gear is circumferentially fixed and axially slidably connected with the revolving arm through the sliding key; when the telescopic rod slides along the axial direction, the fifth gear, the sixth gear and the fourth gear can be meshed alternately; when the fifth gear is meshed with the fourth gear, the clutch mechanism is positioned at the first station, and when the sixth gear is meshed with the fourth gear, the clutch mechanism is positioned at the second station.
The quantitative discharging mechanism comprises a tubular transition bin which is vertically arranged, the upper end and the lower end of the tubular transition bin are arranged in an open mode, the tubular transition bin is fixedly connected with the rotary arm, the quantitative discharging mechanism further comprises a first material baffle and a second material baffle which are arranged on the tubular shaft, the first material baffle and the second material baffle are respectively located at the upper end and the lower end of the tubular transition bin, a first through hole is formed in the first material baffle, a second through hole is formed in the second material baffle, the first through hole and the second through hole are arranged at intervals at a certain angle when viewed in the vertical direction, and the discharging pipe is located above the first material baffle and is arranged opposite to the tubular transition bin in the vertical direction; when the movable door is in a closed state, the second through hole is opposite to the lower end of the tubular transition bin, the first through hole is staggered with the upper end of the tubular transition bin, and when the movable door is in an open state, the second through hole is staggered with the lower end of the tubular transition bin, and the first through hole is opposite to the upper end of the tubular transition bin.
The ultrasonic dispersion units are divided into two groups and are respectively arranged at two ends of the revolving arm.
And a liquid level meter is arranged on the side wall of the annular stirring barrel.
The invention has the technical effects that: according to the invention, the molybdenum disulfide and the solvent are mixed in a batch ultrasonic dispersion mode, the solvent has better wettability and lower viscosity, and is more favorable for fully dispersing the molybdenum disulfide, then the adhesive and the molybdenum disulfide suspension are mixed and uniformly stirred, the solvent is evaporated by heating, the molybdenum disulfide is fully dispersed in the adhesive, and the diluent and the curing agent are subsequently added and stirred again, so that the molybdenum disulfide is further dispersed, the agglomeration phenomenon of fine molybdenum disulfide powder is avoided in the whole process, and the mechanical protection performance of the coating is improved.
Drawings
Figure 1 is a schematic diagram of a molybdenum disulfide coating production system provided by an embodiment of the present invention;
FIG. 2 is a cross-sectional view of an ultrasonic mixing and agitating apparatus provided by an embodiment of the present invention;
FIG. 3 is an enlarged view of section I of FIG. 2;
FIG. 4 is a schematic perspective view of an ultrasonic mixing and stirring apparatus provided in an embodiment of the present invention;
FIG. 5 is a schematic view of an assembled structure of an ultrasonic dispersion unit provided by an embodiment of the present invention;
FIG. 6 is a schematic perspective view of a clutch mechanism provided in accordance with an embodiment of the present invention;
FIG. 7 is a cross-sectional view of a metered dose mechanism and a cylindrical container provided by an embodiment of the present invention;
FIG. 8 is a schematic perspective view of one of the stations of the quantitative discharging mechanism provided in the embodiment of the present invention;
fig. 9 is a schematic perspective view of another station of the quantitative discharging mechanism provided in the embodiment of the present invention.
Detailed Description
In order that the objects and advantages of the invention will be more clearly understood, the following description is given in conjunction with the accompanying examples. It is to be understood that the following text is merely illustrative of one or more specific embodiments of the invention and does not strictly limit the scope of the invention as specifically claimed.
Example 1
A preparation method of a molybdenum disulfide coating comprises the following steps:
preparing molybdenum disulfide coating, adding 5 parts of molybdenum disulfide powder into 50-60 parts of solvent according to parts by weight, and uniformly dispersing the molybdenum disulfide powder into the solvent by adopting ultrasonic mixing and stirring equipment 10 to obtain suspension A, wherein the particle size of the molybdenum disulfide powder is less than 3 mu m;
mixing and stirring the suspension A and 35-40 parts of adhesive uniformly to obtain a mixed solution A, heating the mixed solution A to 55-60 ℃ through a reaction kettle 20, vacuumizing the reaction kettle 20 at the same time, volatilizing the solvent in the mixed solution A, and discharging the volatilized solvent through a vacuumizing pipeline to obtain a mixed solution B, mixing the mixed solution B with 80 parts of diluent and 8-12 parts of curing agent, and stirring uniformly to obtain a molybdenum disulfide coating;
the steps are all carried out in the molybdenum disulfide coating production system shown in figure 1;
and (2) spraying, namely cleaning and airing the surface of the workpiece, uniformly spraying the molybdenum disulfide coating on the surface of the workpiece, wherein the spraying dosage is 15-30 g/square meter, naturally airing, and then performing secondary spraying, wherein the secondary spraying dosage is 25-30 g/square meter, and naturally airing to obtain the molybdenum disulfide coating.
The solvent is acetone, the adhesive is epoxy resin, the curing agent is polyamide, and the diluent is one or a mixture of xylene, butyl acetate, isoamyl acetate and ethylene glycol monoethyl ether acetate.
53 parts of acetone, 41 parts of epoxy resin and 10 parts of polyamide.
When the molybdenum disulfide is mixed with the solvent, the molybdenum disulfide is divided into a plurality of parts, the molybdenum disulfide is added into the solvent part by part, ultrasonic dispersion is carried out for a period of time after each molybdenum disulfide powder is added, and then the molybdenum disulfide powder is added for the next time until all the molybdenum disulfide powder is mixed with the solvent.
According to the invention, the molybdenum disulfide and the solvent are mixed in a batch ultrasonic dispersion mode, the solvent has better wettability and lower viscosity, and is more favorable for fully dispersing the molybdenum disulfide, then the adhesive and the molybdenum disulfide suspension are mixed and uniformly stirred, the solvent is evaporated by heating, the molybdenum disulfide is fully dispersed in the adhesive, and the diluent and the curing agent are subsequently added and stirred again, so that the molybdenum disulfide is further dispersed, the agglomeration phenomenon of fine molybdenum disulfide powder is avoided in the whole process, and the mechanical protection performance of the coating is improved.
Example 2
As shown in fig. 2-9, the present invention further provides an ultrasonic mixing and stirring apparatus 10, which includes an annular stirring barrel 11, a column 12 is disposed in the center of the annular stirring barrel 11, a rotating arm 13 is rotatably disposed above the column 12, a motor 120 for driving the rotating arm 13 to rotate is disposed on the column 12, two ends of the rotating arm 13 are respectively provided with an ultrasonic dispersion unit, the ultrasonic dispersion unit includes a cylindrical container 14 with an open upper end and a closed lower end, a movable door 141 capable of communicating or isolating the inner cavity of the cylindrical container 14 with the inner cavity of the annular stirring barrel 11 is disposed on the sidewall of the cylindrical container 14, the movable door 141 is movably disposed along the circumferential direction of the cylindrical container 14, and an ultrasonic transducer 15 fixedly connected with the rotating arm 13 is disposed in the cylindrical container 14; a discharging pipe 162 is arranged above the cylindrical container 14, and the discharging pipe 162 is communicated with a discharge hole at the bottom of the hopper 16 arranged above the annular stirring barrel 11 through a rotary joint 161; the lower end of the blanking pipe 162 is provided with a quantitative discharging mechanism; the specific method for mixing the molybdenum disulfide and the solvent comprises the following steps: putting molybdenum disulfide powder into a hopper 16, injecting a solvent into an annular stirring barrel 11, starting an ultrasonic mixing and stirring device 10 to enable a rotary arm 13 to start rotating, controlling a movable door 141 to be closed to isolate a cylindrical container 14 from the annular stirring barrel, controlling a quantitative material feeding mechanism to feed a certain amount of molybdenum disulfide powder into the cylindrical container 14, starting an ultrasonic transducer 15 to enable the molybdenum disulfide powder to be fully dispersed in the solvent in the cylindrical container 14, controlling the movable door 141 to be opened after dispersing for a period of time to enable the cylindrical container 14 to be communicated with the annular stirring barrel 11, gradually scattering liquid in the cylindrical container 14 along with the rotation of the rotary arm 13 into the annular stirring barrel 11, controlling the movable door 141 to be closed again after the molybdenum disulfide powder is dispersed in the whole annular stirring barrel 11, and repeating the feeding process until all the molybdenum disulfide powder is dispersed in the solvent. The ultrasonic dispersion technology is a process for converting ultrasonic vibration into mechanical vibration and transmitting the mechanical vibration into a solution, and fully dispersing powder by using the ultrasonic vibration, but the technology is limited in that the technology cannot adapt to large-scale production, because the power of ultrasonic dispersion equipment in the prior art is limited, and the vibration is lost in the transmission process, when the ultrasonic vibration is implemented in a large container, an area far away from a vibration source is difficult to be fully dispersed, and even if the vibration source continuously moves in the container, the problem still exists because the liquid is in a continuous flowing state in the container, although the vibration source continuously moves, part of the liquid can always escape out of an effective vibration area due to flowing, so that the solution cannot be uniformly mixed or the mixing time is long, and the large-scale production requirement cannot be adapted. The ultrasonic mixing and stirring device 10 of the present invention can confine the molybdenum disulfide powder in a smaller container in advance, and the ultrasonic vibration can be fully propagated in the container, so that the molybdenum disulfide powder is fully dispersed, and the molybdenum disulfide powder is released into a larger container after being dispersed.
Further, as shown in fig. 7, the movable door 141 is rotatably connected with the rotary arm 13 through a bracket and a tube shaft 131, and the ultrasonic transducer 15 is fixedly connected with the rotary arm 13 and extends into the cylindrical container 14 from a central hole of the tube shaft 131; a clutch mechanism is arranged among the pipe shaft 131, the rotary arm 13 and the upright post 12, and is assembled to have the following two stations: in the first station, the pipe shaft 131 can rotate along with the rotation of the rotary arm 13, and at the moment, the pipe shaft 131 can drive the movable door 141 to close or open; and a second station, wherein the tubular shaft 131 and the rotary arm 13 are relatively fixed, and the movable door 141 can be kept in an opening or closing state. The clutch mechanism provided by the invention can convert the rotation of the revolving arm 13 into the rotation of the movable door 141 and keep the movable door 141 at an opening or closing station, thereby simplifying the equipment structure and reducing the energy consumption of the equipment.
Preferably, as shown in fig. 3, 4, 5 and 6, the clutch mechanism includes a first gear 132 fixed to the tube shaft 131, a second gear 133, a third gear 134 and a fourth gear 135 rotatably connected to the swing arm 13, the first gear 132 being engaged with the second gear 133, the third gear 134 being coaxially provided with the second gear 133, the third gear 134 being engaged with the fourth gear 135, the upright post 12 is provided with a telescopic rod 121, the telescopic rod 121 forms a circumferential fixed and axial sliding connection with the upright post 12 through a sliding key, the telescopic rod 121 is connected with a cylinder 124 arranged on the upright post 12, the telescopic rod 121 is provided with a fifth gear 122 and a sixth gear 123, wherein the fifth gear 122 is fixedly connected with the telescopic rod 121, the sixth gear 123 forms a circumferential rotation and axial fixed connection with the telescopic rod 121 through a bearing, the sixth gear 123 is in circumferential fixed and axial sliding connection with the rotary arm 13 through a sliding key; when the telescopic rod 121 slides along the axial direction, the fifth gear 122, the sixth gear 123 and the fourth gear 135 can be alternately meshed; the clutch mechanism is in the first position when the fifth gear 122 is engaged with the fourth gear 135, and is in the second position when the sixth gear 123 is engaged with the fourth gear 135.
Preferably, as shown in fig. 7, 8, and 9, the quantitative discharging mechanism includes a vertically arranged tubular transition bin 163, the upper end and the lower end of the tubular transition bin 163 are open, the tubular transition bin 163 is fixedly connected to the revolving arm 13, and the quantitative discharging mechanism further includes a first material blocking plate 164 and a second material blocking plate 165 arranged on the tubular shaft 131, the first material blocking plate 164 and the second material blocking plate 165 are respectively located at the upper end and the lower end of the tubular transition bin 163, the first material blocking plate 164 is provided with a first through hole 1641, the second material blocking plate 165 is provided with a second through hole 1651, when viewed in the vertical direction, the first through hole 1641 and the second through hole 1651 are arranged at a certain angle, and the discharging pipe 162 is located above the first material blocking plate 164 and is arranged opposite to the tubular transition bin 163 in the vertical direction; when the movable door 141 is in a closed state, the second through hole 1651 faces the lower end of the tubular transition bin 163, the first through hole 1641 is staggered with the upper end of the tubular transition bin 163, and when the movable door 141 is in an open state, the second through hole 1651 is staggered with the lower end of the tubular transition bin 163, and the first through hole 1641 faces the upper end of the tubular transition bin 163. In this embodiment, two first through holes 1641 and two second through holes 1651 are provided at an interval of 180 °, and two movable doors 141 are symmetrically provided, so that the liquid in the cylindrical container 14 can be quickly spilled into the annular mixing drum when the movable doors 141 are opened.
Preferably, the ultrasonic dispersion units are divided into two groups and are respectively arranged at two ends of the rotating arm 13, so that the dispersion efficiency is improved, and the balanced operation of the equipment can be ensured.
Further, a liquid level meter 111 is arranged on the side wall of the annular stirring barrel 11.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and these improvements and modifications should also be construed as the protection scope of the present invention. Structures, devices, and methods of operation not specifically described or illustrated herein are generally practiced in the art without specific recitation or limitation.
Claims (6)
1. A preparation method of a molybdenum disulfide coating is characterized by comprising the following steps: the method comprises the following steps:
preparing molybdenum disulfide coating, adding 5 parts of molybdenum disulfide powder into 50-60 parts of solvent according to parts by weight, and uniformly dispersing the molybdenum disulfide powder into the solvent by adopting ultrasonic mixing and stirring equipment (10) to obtain suspension A, wherein the particle size of the molybdenum disulfide powder is less than 3 mu m;
mixing and stirring the suspension A and 35-40 parts of adhesive uniformly to obtain a mixed solution A, heating the mixed solution A to 55-60 ℃ through a reaction kettle (20), vacuumizing the reaction kettle (20) at the same time to volatilize the solvent in the mixed solution A and discharge the solvent through a vacuumizing pipeline to obtain a mixed solution B, mixing the mixed solution B with 80 parts of diluent and 8-12 parts of curing agent, and stirring uniformly to obtain a molybdenum disulfide coating;
spraying, namely cleaning and airing the surface of a workpiece, uniformly spraying the molybdenum disulfide coating on the surface of the workpiece, wherein the spraying dosage is 15-30 g/square meter, naturally airing, and then performing secondary spraying, wherein the secondary spraying dosage is 25-30 g/square meter, and naturally airing to obtain a molybdenum disulfide coating;
when the molybdenum disulfide is mixed with the solvent, the molybdenum disulfide is divided into a plurality of parts, the molybdenum disulfide is added into the solvent part by part, ultrasonic dispersion is carried out for a period of time after each molybdenum disulfide powder is added, and then the next addition is carried out until all the molybdenum disulfide powder is mixed with the solvent;
the ultrasonic mixing and stirring device (10) comprises an annular stirring barrel (11), an upright post (12) is arranged in the center of the annular stirring barrel (11), a rotary arm (13) is rotatably arranged above the upright post (12), a motor (120) for driving the rotary arm (13) to rotate is arranged on the upright post (12), two ends of the rotary arm (13) are respectively provided with an ultrasonic dispersion unit, the ultrasonic dispersion unit comprises a cylindrical container (14) with an open upper end and a closed lower end, the side wall of the cylindrical container (14) is provided with a movable door (141) capable of communicating or isolating the inner cavity of the cylindrical container (14) with the inner cavity of the annular stirring barrel (11), the movable door (141) is movably arranged along the circumferential direction of the cylindrical container (14), and an ultrasonic transducer (15) fixedly connected with the rotary arm (13) is arranged in the cylindrical container (14); a discharging pipe (162) is arranged above the cylindrical container (14), and the discharging pipe (162) is communicated with a discharge hole at the bottom of a hopper (16) arranged above the annular stirring barrel (11) through a rotary joint (161); the lower end of the blanking pipe (162) is provided with a quantitative discharging mechanism; the specific method for mixing the molybdenum disulfide and the solvent comprises the following steps: molybdenum disulfide powder is fed into a hopper (16), a solvent is injected into an annular stirring barrel (11), an ultrasonic mixing and stirring device (10) is started to enable a rotary arm (13) to start to rotate, a movable door (141) is controlled to be closed, a cylindrical container (14) is isolated from the annular stirring barrel, a quantitative discharging mechanism is controlled to feed a certain amount of molybdenum disulfide powder into the cylindrical container (14), an ultrasonic transducer (15) is started to enable the molybdenum disulfide powder to be fully dispersed in the solvent in the cylindrical container (14), the movable door (141) is controlled to be opened after the molybdenum disulfide powder is dispersed for a period of time, the cylindrical container (14) is communicated with the annular stirring barrel (11), liquid in the cylindrical container (14) is gradually dispersed into the annular stirring barrel (11) along with the rotation of the rotary arm (13), the movable door (141) is controlled to be closed again after the molybdenum disulfide powder is dispersed in the whole annular stirring barrel (11), and the feeding process is repeated, until all of the molybdenum disulfide powder is dispersed in the solvent.
2. The method of preparing a molybdenum disulfide coating according to claim 1, wherein: the solvent is acetone, the adhesive is epoxy resin, the curing agent is polyamide, and the diluent is one or a mixture of xylene, butyl acetate, isoamyl acetate and ethylene glycol monoethyl ether acetate.
3. The method of preparing a molybdenum disulfide coating according to claim 1, wherein: the movable door (141) is rotatably connected with the rotary arm (13) through a bracket and a tubular shaft (131), and the ultrasonic transducer (15) is fixedly connected with the rotary arm (13) and extends into the cylindrical container (14) from a central hole of the tubular shaft (131); a clutch mechanism is arranged among the pipe shaft (131), the rotary arm (13) and the upright post (12), and the clutch mechanism is assembled to have the following two stations: in the first station, the tubular shaft (131) can rotate along with the rotation of the rotary arm (13), and the tubular shaft (131) can drive the movable door (141) to close or open; and a second station, wherein the tubular shaft (131) and the rotary arm (13) are relatively fixed, and the movable door (141) can be kept in an open or closed state.
4. The method of preparing a molybdenum disulfide coating according to claim 3, wherein: the clutch mechanism comprises a first gear (132) fixedly connected with a pipe shaft (131), a second gear (133), a third gear (134) and a fourth gear (135) which are rotatably connected with a rotary arm (13), the first gear (132) is meshed with the second gear (133), the third gear (134) and the second gear (133) are coaxially arranged, the third gear (134) is meshed with the fourth gear (135), a telescopic rod (121) is arranged on the upright post (12), the telescopic rod (121) and the upright post (12) form circumferential fixing and axial sliding connection through a sliding key, the telescopic rod (121) is connected with a cylinder (124) arranged on the upright post (12), a fifth gear (122) and a sixth gear (123) are arranged on the telescopic rod (121), wherein the fifth gear (122) is fixedly connected with the telescopic rod (121), and the sixth gear (123) forms circumferential rotation with the telescopic rod (121) through a bearing, The sixth gear (123) is fixedly connected in the axial direction, and is in circumferential fixed and sliding connection in the axial direction with the rotary arm (13) through a sliding key; when the telescopic rod (121) slides along the axial direction, the fifth gear (122), the sixth gear (123) and the fourth gear (135) can be meshed alternately; the clutch mechanism is in the first working position when the fifth gear (122) is meshed with the fourth gear (135), and the clutch mechanism is in the second working position when the sixth gear (123) is meshed with the fourth gear (135).
5. The method of preparing a molybdenum disulfide coating according to claim 4, wherein: the quantitative discharging mechanism comprises a tubular transition bin (163) which is vertically arranged, the upper end and the lower end of the tubular transition bin (163) are arranged in an open mode, the tubular transition bin (163) is fixedly connected with a rotary arm (13), the quantitative discharging mechanism further comprises a first material baffle (164) and a second material baffle (165) which are arranged on a tubular shaft (131), the first material baffle (164) and the second material baffle (165) are respectively located at the upper end and the lower end of the tubular transition bin (163), a first through hole (1641) is formed in the first material baffle (164), a second through hole (1651) is formed in the second material baffle (165), the first through hole (1641) and the second through hole (1651) are arranged at a certain angle in a spaced mode when viewed in the vertical direction, and a discharging pipe (162) is located above the first material baffle (164) and is arranged opposite to the tubular transition bin (163) in the vertical direction; when the movable door (141) is in a closed state, the second through hole (1651) is opposite to the lower end of the tubular transition bin (163), the first through hole (1641) is staggered with the upper end of the tubular transition bin (163), and when the movable door (141) is in an open state, the second through hole (1651) is staggered with the lower end of the tubular transition bin (163), and the first through hole (1641) is opposite to the upper end of the tubular transition bin (163).
6. The method of preparing a molybdenum disulfide coating according to claim 1, wherein: and a liquid level meter (111) is arranged on the side wall of the annular stirring barrel (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110323749.XA CN112961576B (en) | 2021-03-26 | 2021-03-26 | Preparation method of molybdenum disulfide coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110323749.XA CN112961576B (en) | 2021-03-26 | 2021-03-26 | Preparation method of molybdenum disulfide coating |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112961576A CN112961576A (en) | 2021-06-15 |
| CN112961576B true CN112961576B (en) | 2022-02-15 |
Family
ID=76278551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110323749.XA Active CN112961576B (en) | 2021-03-26 | 2021-03-26 | Preparation method of molybdenum disulfide coating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112961576B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100572599C (en) * | 2007-09-13 | 2009-12-23 | 四川联茂机械制造有限公司 | A kind of preparation method of molybdenum disulfide base lubricating coat |
| CN101423726A (en) * | 2008-12-04 | 2009-05-06 | 上海大学 | Molybdenum disulphide high dispersion modified epoxy resin wear-resistant coating material and preparation method thereof |
| CN103421412B (en) * | 2013-08-23 | 2015-07-08 | 中国人民解放军第五七一九工厂 | Dry film lubricant coating composition and preparing method thereof |
| CN206404696U (en) * | 2016-12-02 | 2017-08-15 | 马志成 | A kind of de-agglomerated ultrasonic agitation device |
| CN107308875A (en) * | 2017-08-02 | 2017-11-03 | 中银（宁波）电池有限公司 | Cell size ultrasonic wave mixing apparatus |
-
2021
- 2021-03-26 CN CN202110323749.XA patent/CN112961576B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN112961576A (en) | 2021-06-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202893433U (en) | Ball grinder | |
| CN112961576B (en) | Preparation method of molybdenum disulfide coating | |
| CN117839606A (en) | Mixing device and method for preparing bisphenol A type cyanate ester resin | |
| CN100491099C (en) | Powder composite modification Method and device | |
| CN113694814A (en) | A batching mixes integration preparation machine for preparation of coating can be shelled in deoiling | |
| CN211462795U (en) | Controllable pesticide suspending agent apparatus for producing of temperature | |
| CN104941561A (en) | System for RTV and PRTV production | |
| CN112076650A (en) | Water-based heat-conducting coating and preparation method and preparation system thereof | |
| CN208115641U (en) | A kind of stirring apparatus | |
| CN206229226U (en) | A kind of powdery paints processing mixing device | |
| CN106076183B (en) | Raw material premix for plastic production technology, which attach together, sets | |
| CN212741178U (en) | Powder explosive mixing device | |
| CN204450995U (en) | A kind of particle mixer | |
| CN209333599U (en) | Noise reduction stainless steel paint mixing tank | |
| CN209271230U (en) | A kind of lacquer blender | |
| CN106938187A (en) | A kind of coaxial emulsification stirred type reactor | |
| CN207446043U (en) | A kind of food additives mixing apparatus with multiple feed inlet | |
| CN206806434U (en) | A kind of lead plaster process units | |
| CN111499478A (en) | Powder explosive mixing device | |
| CN221412772U (en) | Premix dry powder agitated vessel | |
| CN219272720U (en) | Stirring device for composite material | |
| CN209952721U (en) | Mixing and stirring device | |
| CN219849240U (en) | Stirring mixing arrangement is used in coating production | |
| CN209476387U (en) | High speed shear impregnation slot | |
| CN209901127U (en) | Building outer wall napping coating production equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A preparation method of molybdenum disulfide coating Granted publication date: 20220215 Pledgee: Agricultural Bank of China Limited Shanghai Chuansha Branch Pledgor: BILL-ANDA (SHANGHAI) LUBRICATING MATERIAL Co.,Ltd. Registration number: Y2024310000075 |