LU504254B1 - Airboat and Processing Method Therefor - Google Patents
Airboat and Processing Method Therefor Download PDFInfo
- Publication number
- LU504254B1 LU504254B1 LU504254A LU504254A LU504254B1 LU 504254 B1 LU504254 B1 LU 504254B1 LU 504254 A LU504254 A LU 504254A LU 504254 A LU504254 A LU 504254A LU 504254 B1 LU504254 B1 LU 504254B1
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- LU
- Luxembourg
- Prior art keywords
- coating
- drag
- reducing
- airboat
- epoxy resin
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B1/00—Hydrodynamic or hydrostatic features of hulls or of hydrofoils
- B63B1/32—Other means for varying the inherent hydrodynamic characteristics of hulls
- B63B1/34—Other means for varying the inherent hydrodynamic characteristics of hulls by reducing surface friction
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
- B05D5/08—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain an anti-friction or anti-adhesive surface
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B3/00—Hulls characterised by their structure or component parts
- B63B3/14—Hull parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B73/00—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2202/00—Metallic substrate
- B05D2202/20—Metallic substrate based on light metals
- B05D2202/25—Metallic substrate based on light metals based on Al
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/50—Multilayers
- B05D7/56—Three layers or more
- B05D7/58—No clear coat specified
- B05D7/586—No clear coat specified each layer being cured, at least partially, separately
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B5/00—Hulls characterised by their construction of non-metallic material
- B63B5/24—Hulls characterised by their construction of non-metallic material made predominantly of plastics
- B63B2005/242—Hulls characterised by their construction of non-metallic material made predominantly of plastics made of a composite of plastics and other structural materials, e.g. wood or metal
- B63B2005/245—Hulls characterised by their construction of non-metallic material made predominantly of plastics made of a composite of plastics and other structural materials, e.g. wood or metal made of a composite of plastics and metal
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H7/00—Propulsion directly actuated on air
- B63H7/02—Propulsion directly actuated on air using propellers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T70/00—Maritime or waterways transport
- Y02T70/10—Measures concerning design or construction of watercraft hulls
Landscapes
- Engineering & Computer Science (AREA)
- Ocean & Marine Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Fluid Mechanics (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Paints Or Removers (AREA)
- Laminated Bodies (AREA)
Abstract
Disclosed are an airboat and a processing method therefor. A bottom of the airboat is made of aluminium alloy, and is provided with a drag-reducing coating; and an epoxy putty coating, an epoxy resin coating and an elastic coating are further disposed in sequence from inside to outside between an aluminium alloy plate of the bottom and the drag-reducing coating. According to the airboat disclosed by the present invention, firstly, a polyurea material is adopted for making a strain layer, and the drag-reducing coating is arranged on the strain layer, so that not only can the drag-reducing coating be prevented from shedding, but also the resistance of the drag-reducing coating is reduced.
Description
Airboat and Processing Method Therefor
LU504254
The present invention relates to water transportation means, in particular to an airboat and a processing method therefor.
An airboat is mainly used in complex environments such as shallow water, muddy or sandy shoals, aquatic plant dense areas, flowing ice areas, ice surfaces, ice-water interface switching places and snowfields. Due to the particularity of the usage environment of the airboat, a hull of the airboat is mostly processed by adopting a lightweight and high-strength aluminium alloy material. Reducing the friction resistance of a bottom to improve the passing capacity and improving the wear resistance of a bottom material to prolong the service life of a hull are keys to an airboat technology. At present, ways which have been adopted for solving this problem mainly comprise: (1) an aluminium alloy bottom is coated with a drag-reducing coating, wherein the drag-reducing coating is low in friction resistance so as to be capable of reducing the advancing resistance of the airboat in the complex environments, however, its disadvantage lies in that the drag-reducing coating requires short-period recoating due to high wear loss, thus being poor in economy, and only plays a role in reducing the resistance, thus affecting the service life of the bottom; (2) the bottom is processed by adopting a metal-based organic composite wear-resistant material, wherein in this way, the wear resistance of the bottom can be improved and the service life of the bottom can be prolonged, however, its disadvantage lies in that the bottom is processed by adopting a composite, which is not conducive to the welding of the bottom, affects the structural strength of the hull, and cannot reduce the advancing resistance of the airboat in a complex interface; and (3) an ultrahigh molecular weight polyethylene (UHMWPE) plate is fixed to the surface of an aluminium alloy plate of the bottom by screw connection, wherein in this way, the problem of high wear and friction resistance of the bottom of the airboat can be solved, however, its disadvantage lies in that the UHMWPE plate and the aluminium alloy plate are poorly bonded and can only be connected by screws, and this connection way is poor in safety and prone to the phenomenon of water seepage on the bottom due to the falling-off of the UHMWPE plate.
An objective of the present invention is to provide an airboat which is novel and unique in structure, convenient to use and capable of effectively reducing the frictional resistance of a bottom. A specific technical solution is that: an airboat is provided, wherein a bottom of the airboat is made of aluminium alloy, and is provided with a drag-reducing coating; and an epoxy putty coating, an epoxy resin coating and an elastic coating are further disposed in sequence from inside to outside between an LU504254 aluminium alloy plate of the bottom and the drag-reducing coating.
Further, the elastic coating is made of a polyurea material.
The present invention further discloses a preparation method for the above-mentioned airboat, comprising the following steps: 1) polishing a surface of an aluminium alloy bottom to remove an oxidation film on a surface of an aluminium alloy plate; 2) uniformly mixing components A and B of epoxy putty at a stirring speed of 100-500 r/min according to a mass ratio of (2.5-4.5):1, then, preparing an epoxy putty coating with a thickness of 0.3 mm from the mixed epoxy putty on the surface of the aluminium alloy plate, and airing the epoxy putty coating in a ventilated and dark place; 3) when the epoxy putty coating is in a surface-dried state, uniformly mixing components A and B of epoxy resin at a stirring speed of 100-500 r/min according to a mass ratio of (2.0- 3.0):1, preparing an epoxy resin coating with a thickness of about 0.3 mm thick from the mixed epoxy resin on the epoxy putty coating, and airing the epoxy resin coating in a ventilated and dark place; 4) when the epoxy resin coating is in a surface-dried state, uniformly mixing components A and B of a polyurea elastomer material at a stirring speed of 100-500 r/min according to a mass ratio of 2:1; 5) preparing a single polyurea elastomer coating with a thickness of 0.5 mm from a mixed polyurea elastomer paint on the surface-dried epoxy resin coating, and airing the single polyurea elastomer coating in a ventilated and dark place; and after the single coating is surface-dried, preparing a new single polyurea elastomer coating with a thickness of 0.5 mm on a surface of the surface-dried single coating until the thickness of the polyurea elastomer coating reaches 1 mm to 4 mm: 6) when the polyurea elastomer coating is in a surface-dried state, uniformly brushing the surface of the polyurea coating with a brush carrying acetone; 7) uniformly mixing components A and B of a drag-reducing paint at a stirring speed of 100- 500 r/min according to a mass ratio of 5:1, then, adding 5% of 2-propoxyethanol by mass percentage into the uniformly-mixed paint, and performing uniform mixing at a stirring speed of 100-500 r/min again to prepare a drag-reducing paint; and 8) after the acetone volatilizes, preparing a single drag-reducing coating with a thickness of 0.3 mm from the drag-reducing paint on the polyurea elastomer coating, and airing the single drag-reducing coating in a ventilated and dark place; and after the single drag- reducing coating is surface-dried, preparing a new single drag-reducing coating with a thickness of 0.3 mm, and forming a drag-reducing coating from 3 to 5 single drag-reducing coatings.
Further, processing directions of adjacent single coatings in step 5) and step 8) are LU504254 perpendicular to each other.
Further, a production environment temperature is 15 °C to 35 °C, and a relative humidity is 20% to 70%.
According to the airboat in the present invention, firstly, a polyurea material is adopted for making a strain layer, and the drag-reducing coating is arranged on the strain layer, so that not only can the drag-reducing coating be prevented from shedding, but also the resistance of the drag-reducing coating is reduced. The wear-resistant and drag-reducing coating prepared by using the above-mentioned method plays a better role in protecting an aluminium alloy substrate, improves the wear resistance and the impact strength of the aluminium alloy substrate, and reduces the frictional resistance of the substrate at the same time. The tensile strength is greater than or equal to 20 MPa, the tear strength is greater than or equal to 100
N/mm, the adhesion to the aluminium alloy is greater than or equal to 7 MPa, and the wear loss is smaller than or equal to 10 (750g/500r)/mg, and a sliding friction coefficient is smaller than or equal to 0.2.
Fig. 1 is a structural schematic diagram of a bottom coating of an airboat in the present invention; and
Fig. 2 is a position schematic diagram of the bottom coating of the airboat in the present invention.
In the drawings: 1, aluminium alloy plate; 2, epoxy putty coating; 3, epoxy resin coating; 4, polyurea elastomer coating; 5, drag-reducing coating; and 6, bottom.
The present invention will be further explained below in conjunction with specific embodiments.
In the following embodiments, a wear-resistant and impact-resistant polyurea elastomer coating and a drag-reducing coating with a low friction coefficient are combined with an aluminium alloy bottom of an airboat, so that the service life of the bottom of the airboat is prolonged, and the advancing resistance of a hull in a complex environment is reduced.
As shown in Fig. 1, in embodiments 1 and 2, the airboat is prepared by taking a 5083-H116 aluminium alloy plate 1 as a substrate, an epoxy putty coating 2 as a first bonding agent layer, an epoxy resin coating 3 as a second bonding agent layer, a polyurea elastomer coating 4 as a reinforcing layer, and a drag-reducing coating 5 as a surface layer. It is verified by a plurality of experiments that a coating finally obtained by adopting a method of scraping each coating in an indoor environment where a temperature is 20 °C to 35 °C and a relative humidity is 20% to 70% has the strength of greater than or equal to 20 MPa, the tear strength of greater than or equal to 100 N/mm, the adhesion of greater than or equal to 7 MPa, the wear loss of smaller LU504254 than or equal to 10 (750g/500r)/mg, and a sliding friction coefficient of smaller than or equal to 0.2.
The coating should cover the whole bottom area by taking welded joints between sides and a quarter and the bottom as edges. The thickness of the coating should not exceed a protruding height of the welded joint. In this way, the situation that the coating is stripped from the edges to shed is avoided under the protection of the welded joints.
The coating on the bottom can be processed by adopting the prior art such as layer-by- layer spraying and scraping. À better effect will be achieved if the following new processing method is adopted. 1) The processing method for the bottom of the airboat in the embodiment comprises the following steps: (1) test conditions: a temperature is 15 °C to 35 °C and a relative humidity is 20% to 70%; (2) under the conditions in step (1), a surface of a 5083-H116 aluminium alloy plate is uniformly polished by using a 220-mesh sandpaper (or a polishing machine with the same roughness) to remove an oxidation film on the surface of the aluminium alloy plate, and an interval between the polishing and the next process is shorter than 4h; (3) components A and B of epoxy putty are uniformly mixed at a stirring speed of 100-500 r/min according to a mass ratio of (2.5-4.5):1, then, a mixed epoxy putty paint is uniformly and thinly scraped (the thickness of the coating being about 0.3 mm), by a stainless steel scraper, on the aluminium alloy plate polished in step (2), and an obtained epoxy putty coating is aired in a ventilated and dark place; (4) when the epoxy putty coating in step (3) is in a surface-dried state, components A and B of epoxy resin are uniformly mixed at a stirring speed of 100-500 r/min according to a ratio of (2.0-3.0):1, the mixed epoxy resin is uniformly and thinly scraped (the thickness of the coating being about 0.3 mm), by a stainless steel scraper, on the epoxy putty coating surface-dried in step (3), and an obtained epoxy resin coating is aired in a ventilated and dark place; (5) when the epoxy resin coating in step (4) is in a surface-dried state, components A and B of a polyurea elastomer material are uniformly mixed at a stirring speed of 100-500 r/min according to a ratio of 2:1, a mixed polyurea elastomer paint is uniformly and thinly scraped (the thickness of the coating being about 0.5 mm), by a stainless steel scraper, on the epoxy resin coating surface-dried in step (4), and an obtained coating is aired in a ventilated and dark place; and after the coating is surface-dried, the scraper is perpendicular to a first scraping direction, a uniformly-mixed polyurea paint is thinly scraped again, and such an operation is repeated until the thickness of the coating is 1 mm to 4 mm; (6) when a polyurea elastomer coating in step (5) reaches a target thickness and is in a surface-dried state, a surface of a polyurea coating is uniformly brushed by a brush carrying acetone, after the acetone volatilizes, components A and B of a drag-reducing paint are LU504254 uniformly mixed at a stirring speed of 100-500 r/min according to a ratio of 5:1, then, 5% of 2-propoxyethanol by mass percentage is added into the uniformly-mixed paint, and uniform mixing is performed at a stirring speed of 100-500 r/min again, the mixed drag-reducing 5 paint is uniformly and thinly scraped (the thickness of the coating being about 0.3 mm), by a stainless steel scraper, on the surface-dried polyurea coating with a target thickness in step (5), and an obtained coating is aired in a ventilated and dark place; and after the coating is surface-dried, the scraper is perpendicular to a first scraping direction, the uniformly-mixed drag-reducing paint is thinly scraped again, and such an operation is repeated for 3 to 5 times.
In the materials used in the present invention, the component A is a main agent, the component B is a curing agent, and a ratio of the two components is a mass ratio. A main agent of the epoxy putty is HO7-5 epoxy ester putty; a main agent of the epoxy resin is E-52 bisphenol
A epoxy resin; a main agent of the polyurea elastomer is composed of diphenylmethane diisocyanate (MDI50) and a pigment; and a main agent of the drag-reducing paint is a G2 drag- reducing paint of an imported Gatorglide brand.
The wear-resistant and drag-reducing coating prepared by using the above-mentioned method plays a better role in protecting an aluminium alloy substrate, improves the wear resistance and the impact strength of the aluminium alloy substrate, and reduces the frictional resistance of the substrate at the same time. The tensile strength is greater than or equal to 20
MPa, the tear strength is greater than or equal to 100 N/mm, the adhesion to the aluminium alloy is greater than or equal to 7 MPa, and the wear loss is smaller than or equal to 10 (750g/500r)/mg, and a sliding friction coefficient is smaller than or equal to 0.2.
Embodiment 1
A wear-resistant and drag-reducing coating material for a bottom of an airboat is prepared by taking an aluminium alloy plate 1 as a substrate, epoxy putty 2 as a first bonding agent layer, epoxy resin 3 as a second bonding agent layer, a polyurea elastomer coating 4 as a reinforcing layer, and a drag-reducing coating 5 as a surface layer.
The aluminium alloy substrate 1 is a 5083-H116 plate with a thickness of 5 mm; a mass ratio of components A and B of the epoxy putty layer 2 is 4:1; a mass ratio of components A and
B of the epoxy resin layer 3 is 2.5:1; a stirring speed is 400 r/min, and a thickness of the polyurea elastomer coating is 2 mm; and a mass ratio of components A and B of a drag- reducing paint is 5:1, and the drag-reducing coating is brushed for 3 times.
An environment temperature is 28 °C to 30 °C, a relative humidity is 55% to 60%, the epoxy putty coating 2 is surface-dried for 60 min, the epoxy resin coating 3 is surface-dried for 60 min, each layer of the polyurea elastomer coating 4 is surface-dried for 30 min, and the drag- reducing coating is surface-dried for 30 min.
Embodiment 2 LU504254
A wear-resistant and drag-reducing coating material for a bottom of an airboat is prepared by taking an aluminium alloy plate 1 as a substrate, epoxy putty 2 as a first bonding agent layer, epoxy resin 3 as a second bonding agent layer, a polyurea elastomer coating 4 as a reinforcing layer, and a drag-reducing coating 5 as a surface layer.
The aluminium alloy substrate 1 is a 5083-H116 plate with a thickness of 5 mm; a mass ratio of components A and B of the epoxy putty layer 2 is 4:1; a mass ratio of components A and
B of the epoxy resin layer 3 is 2.5:1; a stirring speed is 400 r/min, and a thickness of the polyurea elastomer coating is 2.5 mm; and a mass ratio of components A and B of a drag- reducing paint is 5:1, and the drag-reducing coating is brushed for 4 times.
An environment temperature is 30 °C to 33 °C, a relative humidity is 58% to 60%, the epoxy putty coating 2 is surface-dried for 50 min, the epoxy resin coating 3 is surface-dried for 55 min, each layer of the polyurea elastomer coating 4 is surface-dried for 25 min, and the drag- reducing coating is surface-dried for 28 min.
Embodiment 3
A wear-resistant and drag-reducing coating material for a bottom of an airboat is prepared by taking an aluminium alloy plate 1 as a substrate, epoxy putty 2 as a first bonding agent layer, epoxy resin 3 as a second bonding agent layer, a polyurea elastomer coating 4 as a reinforcing layer, and a drag-reducing coating 5 as a surface layer.
The aluminium alloy substrate 1 is a 5083-H116 plate with a thickness of 5 mm; a mass ratio of components A and B of the epoxy putty layer 2 is 4:1; a mass ratio of components A and
B of the epoxy resin layer 3 is 2.5:1; a stirring speed is 400 r/min, and a thickness of the polyurea elastomer coating is 3 mm; and a mass ratio of components A and B of a drag- reducing paint is 5:1, and the drag-reducing coating is brushed for 5 times.
An environment temperature is 30 °C to 32 °C, a relative humidity is 50% to 55%, the epoxy putty coating 2 is surface-dried for 48 min, the epoxy resin coating 3 is surface-dried for 50 min, each layer of the polyurea elastomer coating 4 is surface-dried for 23 min, and the drag- reducing coating is surface-dried for 25 min.
Comparative Example
A wear-resistant and drag-reducing coating material for a bottom of an airboat is prepared by taking an aluminium alloy plate 1 as a substrate and a drag-reducing coating 5 as a surface layer.
The aluminium alloy substrate 1 is a 5083-H116 plate with a thickness of 5 mm; a mass ratio of components A and B of a drag-reducing paint is 5:1; and the drag-reducing coating is brushed for 3 times, wherein 2-propoxyethanol is not added into the drag-reducing coating.
An environment temperature is 28 °C to 30 °C, a relative humidity is 55% to 60%, and the LU504254 drag-reducing coating is surface-dried for 30 min.
After the above-mentioned prepared wear-resistant and drag-reducing coating is cured for 7 days in a natural state, physical and mechanical performances are tested according to GB/T 16777-2008 Test Methods for Building Waterproofing Coatings and GB/T 3960-2016 Plastics-
Test Method for Friction and Wear by Sliding, and some basic performance test results of the wear-resistant and drag-reducing coating will be given in table 1.
Table 1 Performance Test Results of Wear-Resistant and Drag-reducing Coating
Example woe LEO LEO ET alloy/MPa
Wear loss/ 5 ans | O1 EL ES
It is found by test that, by adding the polyurea elastomer coating between the epoxy resin coating and the drag-reducing coating, not only can the tensile strength, tear strength and adhesion to the aluminium alloy of the bottom be improved; but also the sliding friction coefficient can be reduced.
As shown in Fig. 2, in Embodiments 1 and 2 and the comparative example, an area of the bottom 6 is an area covered by the coating. The airboat is high in speed, light in weight, and shallow in draught; the drag-reducing coating disposed on the side has a limited effect; and if the drag-reducing coating is only disposed on the bottom, the cost is low, and the drag-reducing performance loss is low.
The wear-resistant and drag-reducing coating material in the present invention and the processing method therefor have the following advantages: 1) the requirements on the implementation environment conditions are relatively low: the temperature is 15 °C to 35 °C, and a relative humidity is 20% to 70%; 2) the process is simple and can be realized by hand scraping (or hand brushing); 3) the prepared coating is good in mechanical performance and capable of playing roles in wear resistance, impact resistance and drag reduction at the same time when being applied to the bottom of the airboat, and the drag-reducing coating is low in wear loss and good IN Us04254 economy; and 4) if the coating is locally destroyed, the coating can be locally recoated so as to be convenient and rapid in maintenance and repair.
The above embodiments are merely preferred embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any simple modifications, alterations and equivalent structural variations made to the above-mentioned embodiments without departing from the technical essence of the present invention shall still fall within the protection scope of the technical solutions of the present invention.
Claims (5)
1. An airboat, wherein the bottom of the airboat is made of aluminium alloy, and is provided with a drag-reducing coating; characterized in that an epoxy putty coating, an epoxy resin coating and an elastic coating are further disposed in sequence from inside to outside between an aluminium alloy plate of the bottom and the drag-reducing coating.
2. The airboat according to claim 1, characterized in that the elastic coating is made of a polyurea material.
3. A preparation method for the airboat according to claim 1, comprising the following steps: 1) polishing a surface of an aluminium alloy bottom to remove an oxidation film on a surface of an aluminium alloy plate; 2) uniformly mixing components A and B of epoxy putty at a stirring speed of 100 - 500 r/min according to a mass ratio of (2.5 - 4.5) : 1, then, preparing an epoxy putty coating with a thickness of 0.3 mm from the mixed epoxy putty on the surface of the aluminium alloy plate, and airing the epoxy putty coating in a ventilated and dark place; 3) when the epoxy putty coating is in a surface-dried state, uniformly mixing components A and B of epoxy resin at a stirring speed of 100-500 r/min according to a mass ratio of
(2.0 - 3.0) : 1, preparing an epoxy resin coating with a thickness of about 0.3 mm thick from the mixed epoxy resin on the epoxy putty coating, and airing the epoxy resin coating in a ventilated and dark place; 4) when the epoxy resin coating is in a surface-dried state, uniformly mixing components A and B of a polyurea elastomer material at a stirring speed of 100 - 500 r/min according toamassratioof 2: 1; 5) preparing a single polyurea elastomer coating with a thickness of 0.5 mm from a mixed polyurea elastomer paint on the surface-dried epoxy resin coating, and airing the single polyurea elastomer coating in a ventilated and dark place; and after the single coating is surface-dried, preparing a new single polyurea elastomer coating with a thickness of 0.5 mm on a surface of the surface-dried single coating until the thickness of the polyurea elastomer coating reaches 1 mm to 4 mm: 6) when the polyurea elastomer coating is in a surface-dried state, uniformly brushing the surface of the polyurea coating with a brush carrying acetone; 7) uniformly mixing components A and B of a drag-reducing paint at a stirring speed of 100- 500 r/min according to a mass ratio of 5 : 1, then, adding 5% of 2-propoxyethanol by mass percentage into the uniformly-mixed paint, and performing uniform mixing at a stirring speed of 100 - 500 r/min again to prepare a drag-reducing paint; and
8) after the acetone volatilizes, preparing a single drag-reducing coating with a thickness of 504254
0.3 mm from the drag-reducing paint on the polyurea elastomer coating, and airing the single drag-reducing coating in a ventilated and dark place; and after the single drag- reducing coating is surface-dried, preparing a new single drag-reducing coating with a thickness of 0.3 mm, and forming a drag-reducing coating from 3 to 5 single drag- reducing coatings.
4. The preparation method according to claim 3, characterized in that processing directions of adjacent single coatings in step 5) and step 8) are perpendicular to each other.
5. The preparation method according to claim 3, characterized in that the production environment temperature is 15°C to 35°C, and the relative humidity is 20% to 70%.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111105957.9A CN113978603B (en) | 2021-09-22 | 2021-09-22 | Processing method of air boat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| LU504254B1 true LU504254B1 (en) | 2023-07-19 |
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ID=79736166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| LU504254A LU504254B1 (en) | 2021-09-22 | 2022-07-08 | Airboat and Processing Method Therefor |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN113978603B (en) |
| LU (1) | LU504254B1 (en) |
| WO (1) | WO2023045495A1 (en) |
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| CN113978603B (en) * | 2021-09-22 | 2024-07-19 | 抚顺抚运安仪救生装备有限公司 | Processing method of air boat |
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| GB1317617A (en) * | 1969-07-02 | 1973-05-23 | Nat Res Corp | Protection of structural parts from abrasion |
| CN102060084A (en) * | 2009-11-18 | 2011-05-18 | 抚顺抚运安仪救生装备有限公司 | Rescue boat body |
| CN102287588A (en) * | 2011-07-19 | 2011-12-21 | 云南聚博橡胶工程有限公司 | Environment-friendly, flexible, resistance-reducing and double-layer composite pulp delivery pipeline and preparation method of same |
| CN106741587B (en) * | 2017-02-24 | 2019-01-25 | 重庆市航蝠船舶节能技术开发有限公司 | Hull |
| CN206537440U (en) * | 2017-03-07 | 2017-10-03 | 福晨空气艇（大连）有限公司 | Complete deck floating box type air force ship hull |
| CN109261471A (en) * | 2018-11-21 | 2019-01-25 | 盐城市翔盛碳纤维科技有限公司 | A kind of aluminium alloy block blast-proof materials and preparation method thereof |
| CN209096171U (en) * | 2018-11-27 | 2019-07-12 | 四川恒保森新材料有限公司 | A kind of corrosion-resistant drag-reducing coating structure of aluminum alloy base material |
| CN210180282U (en) * | 2019-05-31 | 2020-03-24 | 浙江立泰复合材料股份有限公司 | Strong-constraint boron carbide ceramic composite armor |
| CN112812666B (en) * | 2019-11-15 | 2022-01-11 | 天津森聚柯密封涂层材料有限公司 | Spray polyurea coating system containing slow-curing flexible transition layer and construction method thereof |
| CN111877348A (en) * | 2020-08-07 | 2020-11-03 | 宁夏回族自治区水利工程建设中心 | Drag reduction and roughness reduction method for concrete surface coating of water delivery building |
| CN111959678B (en) * | 2020-08-12 | 2022-03-11 | 哈尔滨工程大学 | Vibration-damping noise-reducing polyimide foam heat-insulating composite material for ship cabin and mounting method |
| CN112452689A (en) * | 2020-11-18 | 2021-03-09 | 华拓建业工程技术有限公司 | Coating construction process of weather-resistant functional anticorrosive paint for base surface rust removal |
| CN112387983B (en) * | 2020-11-30 | 2022-10-28 | 浙江华朔科技股份有限公司 | Preparation method of aluminum alloy surface damping corrosion-resistant composite structure layer |
| CN113978603B (en) * | 2021-09-22 | 2024-07-19 | 抚顺抚运安仪救生装备有限公司 | Processing method of air boat |
| CN216153972U (en) * | 2021-09-22 | 2022-04-01 | 抚顺抚运安仪救生装备有限公司 | Air boat |
-
2021
- 2021-09-22 CN CN202111105957.9A patent/CN113978603B/en active Active
-
2022
- 2022-07-08 WO PCT/CN2022/104498 patent/WO2023045495A1/en active Application Filing
- 2022-07-08 LU LU504254A patent/LU504254B1/en active IP Right Grant
Also Published As
| Publication number | Publication date |
|---|---|
| CN113978603A (en) | 2022-01-28 |
| WO2023045495A1 (en) | 2023-03-30 |
| CN113978603B (en) | 2024-07-19 |
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