CN110758635A - Formula and manufacturing method of waterproof layer of ship steel structure - Google Patents
Formula and manufacturing method of waterproof layer of ship steel structure Download PDFInfo
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- CN110758635A CN110758635A CN201911099881.6A CN201911099881A CN110758635A CN 110758635 A CN110758635 A CN 110758635A CN 201911099881 A CN201911099881 A CN 201911099881A CN 110758635 A CN110758635 A CN 110758635A
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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
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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
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
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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
- 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
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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
- 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
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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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/65—Additives macromolecular
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- 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
- C08K2003/3045—Sulfates
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- 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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- Ocean & Marine Engineering (AREA)
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Abstract
The invention discloses a formula of a waterproof layer of a ship steel structure and a manufacturing method thereof, the waterproof layer comprises a steel plate, a resin paint layer and a welding bolt, a mirror surface plate is fixed on the rear surface of the steel plate, a connecting bolt is fixed on one end of the steel plate, the steel plate can be decomposed in a seawater environment through the material of a corrosion-resistant sheet, and continuously emits electrons to a ship body, so that the ship body becomes a cathode to be protected, the anti-corrosion effect of the ship steel is improved, the abrasion of water flow on the paint and the anti-corrosion material on the ship steel can be reduced through the smooth surface of the mirror surface plate, the service life of the paint and the anti-corrosion material is prolonged, the normal use of the anti-corrosion function of the ship steel is ensured, the maintenance cost is reduced, the connecting bolt is meshed and fixed with a connecting square pipe of adjacent ship steel, an operation groove and the welding bolt are enabled to coincide, the surface of the mirror surface plate is coated with a waterproof layer, so that the corrosion of seawater to steel can be effectively slowed down.
Description
Technical Field
The invention belongs to the technical field of ship steel, and particularly relates to a formula of a waterproof layer of a ship steel structure and a manufacturing method of the waterproof layer.
Background
The ship steel is engineering structural steel of a hull structure of a sailing ship, is mainly a plate, and also comprises partial section steel and a pipe; the ship steel is required to have higher strength, higher toughness, good welding performance and higher seawater corrosion resistance; the ship body is anticorrosive, and ship body steel products are prevented from being corroded by the action of surrounding atmosphere, seawater, river water, aquatic organisms and the like.
The existing ship steel structure has some defects, and the ship steel structure is poor in anti-corrosion function and easy to rust and corrode in the using process, so that the normal use of the ship steel is influenced, the maintenance cost is increased, inconvenience is brought to users, the ship steel structure is removed from being soaked in seawater to cause corrosion, the seawater permeates into the inside of ship steel, and the problem that the corrosion is difficult to solve is caused from the inside.
Disclosure of Invention
To solve the problems set forth in the background art described above. The invention provides a formula of a waterproof layer of a ship steel structure and a manufacturing method thereof, and the waterproof layer has the characteristics of convenience in welding, good corrosion resistance and good waterproof performance.
In order to achieve the purpose, the invention provides the following technical scheme: the formula of the waterproof layer of the ship steel structure comprises a steel plate, a resin painting layer and a welding bolt, wherein a mirror plate is fixed on the rear surface of the steel plate, a connecting bolt is fixed at one end of the steel plate, a connecting square pipe is fixed at one end, far away from the connecting bolt, of the steel plate, a reinforcing rod is fixed on the front surface of the steel plate, the resin painting layer is fixedly arranged at the bottom end of the mirror plate, a corrosion-resistant sheet is fixed at the bottom end of the resin painting layer, the welding bolt is fixedly arranged at the top end of the connecting bolt, and an operation groove is formed in the top end.
As the preferable technical scheme of the invention, the left end and the right end of the reinforcing rod are fixedly provided with the assembling frames, and the assembling frames are fixed by welding.
In order to improve the toughness of the mirror surface plate, avoid the mirror surface plate from being damaged by collision and prolong the service life of the mirror surface plate, a foam pad is fixed inside the mirror surface plate and is formed by mechanical pressing.
In order to prevent chemical reaction of chemical substances in the resin paint layer due to ultraviolet irradiation and ensure normal use of the resin paint layer, the ultraviolet-proof paint is fixed inside the resin paint layer and is fixed by coating.
In order to protect the hull by using the zinc-aluminum alloy member as an anode and decomposing the zinc-aluminum alloy member in a seawater electrolyte environment, and continuously discharging electrons to the hull so that the hull becomes a cathode, the corrosion-resistant sheet is a zinc-aluminum alloy member.
In order to facilitate the fixing of the connecting bolt and the welding operation of the ship steel by a user, as a preferred technical scheme of the invention, the front surface of the connecting bolt is fixed with an engagement convex strip, and the engagement convex strip is fixed through welding.
As the preferred technical scheme of the invention, the inner side of the connecting square pipe is fixed with the limiting concave strip, and the limiting concave strip is fixed by welding.
In order to prevent seawater from permeating steel through the mirror board to cause corrosion, as a preferred technical scheme of the invention, the mirror board is coated with a waterproof layer, and the preparation method of the waterproof layer comprises the following steps:
taking the following raw materials in parts by weight for standby: 25.6-25.8 parts of polyurethane, 18.5-19.7 parts of methyl isobutyl ketone, 9.8-12.4 parts of talcum powder, 5.6-8.6 parts of barium sulfate, 2.6-4.2 parts of alkyl quaternary ammonium, 13.4-14.6 parts of acrylic emulsion and 1.7-2.1 parts of sodium alginate.
S1, pre-prepared organic solvent: mixing polyurethane, methyl isobutyl ketone, alkyl quaternary ammonium and acrylic emulsion, heating to 35-38 ℃, uniformly stirring, and keeping the temperature for 30-40 min;
s2, preparing a waterproof coating: sequentially adding talcum powder, barium sulfate and sodium alginate into the organic solvent in S1, stirring uniformly, heating to 40-45 ℃, and keeping the temperature for 25-30 min;
s3, processing: carrying out ultrasonic treatment on the waterproof coating obtained in the step S2 for 0.5-1h, then cooling to 32-35 ℃, stirring at the rotating speed of 800-;
s4, coating: uniformly coating the waterproof coating obtained in the step S3 on the surface of the mirror panel by using a brush;
s5, drying: and (5) placing the mirror panel obtained in the step (S4) in a cool and ventilated place for drying for 3-5 h.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic diagram of an exploded structure of a steel plate according to the present invention;
FIG. 3 is a schematic view of the front view of the connecting square tube of the present invention;
in the figure: 1. connecting the square tubes; 2. a steel plate; 3. a mirror panel; 4. a reinforcing rod; 5. a connecting bolt; 6. a resin paint coating layer; 7. a corrosion resistant sheet; 8. engaging the ribs; 9. welding a bolt; 10. an operation slot; 11. spacing concave strip.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
Referring to fig. 1-3, the present invention provides the following technical solutions:
example 1
The utility model provides a formula and preparation method of boats and ships steel construction waterproof layer, including steel sheet 2, resin paint layer 6 and welding bolt 9, steel sheet 2's rear surface has mirror plate 3 through welded fastening, steel sheet 2's one end has connecting bolt 5 through welded fastening, steel sheet 2 keeps away from the one end of connecting bolt 5 and is fixed with connecting square pipe 1 through the mould pouring, steel sheet 2's front surface has strong pole 4 through the bolt fastening, resin paint layer 6 is fixed in the bottom of mirror plate 3 through the application installation, the bottom of resin paint layer 6 is fixed with corrosion-resistant piece 7 through welded fastening, welding bolt 9 is fixed on the top of connecting bolt 5 through welded mounting, operating channel 10 has been seted up on the top of connecting square pipe 1.
Further, the left end and the right end of the reinforcing rod 4 are fixedly provided with assembling frames, and the assembling frames are fixed through welding.
Further, a foam pad is fixed to the inside of the mirror panel 3, and the foam pad is formed by mechanical press-molding.
Further, an ultraviolet-proof paint is fixed inside the resin paint layer 6, and the ultraviolet-proof paint is fixed by painting.
Further, the corrosion-resistant sheet 7 is a zinc-aluminum alloy member.
Further, an engagement ridge 8 is fixed to the front surface of the connection bolt 5, and the engagement ridge 8 is fixed by welding.
Further, the inner side of the connecting square pipe 1 is fixed with a limiting concave strip 11, and the limiting concave strip 11 is fixed through welding.
In this example, the mirror panel was a 04 stainless steel mirror panel sold by 3 tianjinxin steel hong yi stainless steel trade limited; the resin paint layer 6 is epoxy resin anticorrosive finish paint of Zhejiang bridge paint GmbH; the corrosion-resistant sheet 7 is a zinc-aluminum alloy plate 7075 of special metals Limited of Xingguan city.
The working principle and the using process of the invention are as follows: in the installation process of the invention, a welding position is formed in the conveying of the steel plates 2, then the adjacent steel plates 2 are horizontally placed, then the connecting bolt 5 at one end of each steel plate 2 is aligned with the connecting square pipe 1 at one end of the adjacent steel plate 2 to be placed, the engaging convex strip 8 on the surface of the connecting bolt 5 is aligned with the limiting concave strip 11 on the inner side wall of the connecting square pipe 1 to be engaged and fixed, the two adjacent steel plates 2 are preliminarily fixed, the welding bolt 9 on the connecting bolt 5 is enabled to be overlapped with the operating groove 10 on the connecting square pipe 1, after the overlapping is finished, a user can use a welding tool to weld the operating groove 10, the operation difficulty of welding the steel plates 2 is reduced, the welding precision of the steel plates 2 is improved, the working efficiency of the welding operation of the steel plates is improved, after the steel plates 2 are welded, the user can take the reinforcing rod 4 according to the actual assembling requirement and fix the steel plates 2 by the assembling frame on the steel plates, further, the structural strength of the steel plate 2 is enhanced, the corrosion-resistant sheet 7 can be installed on the rear surface of the steel plate 2, the resin coating is taken to coat the corrosion-resistant sheet 7 and form the resin coating layer 6, the mirror panel 3 is taken to cover the resin coating layer 6, the mirror panel 3 is welded and fixed through a tool, the abrasion of water flow to the steel plate 2 can be effectively reduced through the smooth surface of the mirror panel 3, the toughness of the mirror panel 3 is enhanced through the foam pad inside the mirror panel 3, the service life of the mirror panel 3 is prolonged, and after the mirror panel 3 is installed, the steel plate 2 can be placed at a proper position.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the ship steel corrosion-resistant plate, the corrosion-resistant sheet 7 and the mirror-surface plate 3 are assembled, the corrosion-resistant sheet 7 can be decomposed in a seawater environment, electrons are continuously emitted and input into the ship body, the ship body becomes a cathode to be protected, the corrosion-resistant effect of the ship steel is improved, the abrasion of water flow to paint and corrosion-resistant materials on the ship steel can be reduced through the smooth surface of the mirror-surface plate 3, the service lives of the paint and the corrosion-resistant materials are prolonged, the normal use of the corrosion-resistant function of the ship steel is ensured, and the maintenance cost is reduced;
2. according to the invention, the square connecting pipe 1 and the connecting bolt 5 are assembled, the connecting bolt 5 is meshed and fixed with the square connecting pipe 1 of the adjacent ship steel, the operation groove 10 and the welding bolt 9 are enabled to be superposed, the ship steel is convenient for a user to weld, the welding operation difficulty is reduced, the welding precision of the ship steel is improved, the fixing is firm and reliable, the working efficiency of the ship steel welding operation is improved, and the convenience is brought to the user.
Example 2
The difference from the example 1 is that the mirror board 3 is coated with a waterproof layer, and the preparation method of the waterproof layer is as follows:
taking the following raw materials in parts by weight for standby: 25.6 parts of polyurethane, 18.5 parts of methyl isobutyl ketone, 9.8 parts of talcum powder, 5.6 parts of barium sulfate, 2.6 parts of alkyl quaternary ammonium, 13.4 parts of acrylic emulsion and 1.7 parts of sodium alginate.
S1, pre-prepared organic solvent: mixing polyurethane, methyl isobutyl ketone, alkyl quaternary ammonium and acrylic emulsion, heating to 35 ℃, uniformly stirring, and keeping the temperature for 30 min;
s2, preparing a waterproof coating: sequentially adding talcum powder, barium sulfate and sodium alginate into the organic solvent in S1, stirring uniformly, heating to 40 ℃, and keeping the temperature for 25 min;
s3, processing: carrying out ultrasonic treatment on the waterproof coating obtained in the step S2 for 0.5h, then cooling to 32 ℃, stirring at the rotating speed of 900r/min for 0.5h, and then cooling to room temperature;
s4, coating: uniformly coating the waterproof coating obtained in the step S3 on the surface of the mirror panel 3 by using a brush;
s5, drying: the mirror panel 3 obtained in step S4 was placed in a cool and ventilated place and dried for 3 hours.
In this embodiment, the mirror plate 3 is coated with a waterproof layer, which can prevent seawater from permeating into the inner layer of the steel plate to corrode the inside of the ship steel, thereby protecting the ship steel and prolonging the service life thereof, in addition to the waterproof function.
Example 3
The difference from the example 2 is that the specific gravity of the formula is modified, and the modified formula is as follows:
taking the following raw materials in parts by weight for standby: 25.8 parts of polyurethane, 19.7 parts of methyl isobutyl ketone, 12.4 parts of talcum powder, 8.6 parts of barium sulfate, 4.2 parts of alkyl quaternary ammonium, 14.6 parts of acrylic emulsion and 2.1 parts of sodium alginate.
S1, pre-prepared organic solvent: mixing polyurethane, methyl isobutyl ketone, alkyl quaternary ammonium and acrylic emulsion, heating to 35 ℃, uniformly stirring, and keeping the temperature for 30 min;
s2, preparing a waterproof coating: sequentially adding talcum powder, barium sulfate and sodium alginate into the organic solvent in S1, stirring uniformly, heating to 40 ℃, and keeping the temperature for 25 min;
s3, processing: carrying out ultrasonic treatment on the waterproof coating obtained in the step S2 for 0.5h, then cooling to 32 ℃, stirring at the rotating speed of 900r/min for 0.5h, and then cooling to room temperature;
s4, coating: uniformly coating the waterproof coating obtained in the step S3 on the surface of the mirror panel 3 by using a brush;
s5, drying: the mirror panel 3 obtained in step S4 was placed in a cool and ventilated place and dried for 3 hours.
In this embodiment, the specific gravity of the formulation is modified and compared to obtain the optimal formulation.
Example 4
The difference from the example 2 is that the specific gravity of the formula is modified, and the modified formula is as follows:
taking the following raw materials in parts by weight for standby: 25.7 parts of polyurethane, 19.1 parts of methyl isobutyl ketone, 11.1 parts of talcum powder, 7.1 parts of barium sulfate, 3.4 parts of alkyl quaternary ammonium, 14 parts of acrylic emulsion and 1.9 parts of sodium alginate.
S1, pre-prepared organic solvent: mixing polyurethane, methyl isobutyl ketone, alkyl quaternary ammonium and acrylic emulsion, heating to 35 ℃, uniformly stirring, and keeping the temperature for 30 min;
s2, preparing a waterproof coating: sequentially adding talcum powder, barium sulfate and sodium alginate into the organic solvent in S1, stirring uniformly, heating to 40 ℃, and keeping the temperature for 25 min;
s3, processing: carrying out ultrasonic treatment on the waterproof coating obtained in the step S2 for 0.5h, then cooling to 32 ℃, stirring at the rotating speed of 900r/min for 0.5h, and then cooling to room temperature;
s4, coating: uniformly coating the waterproof coating obtained in the step S3 on the surface of the mirror panel 3 by using a brush;
s5, drying: the mirror panel 3 obtained in step S4 was placed in a cool and ventilated place and dried for 3 hours.
In this embodiment, the specific gravity of the formulation is modified and compared to obtain the optimal formulation.
The mirror panels 3 of examples 1, 2, 3, 4 coated with water-repellent coatings of different formulation specific gravities were tested for water repellency strength and peel strength, and for comparison, the data for all examples were normalized based on the data for example 1.
TABLE 1
| Strength of water resistance | Peel strength | |
| Example 1 | 100% | 100% |
| Example 2 | 158% | 143% |
| Example 3 | 162% | 138% |
| Example 4 | 169% | 142% |
In this embodiment, the mirror plate 3 is coated with a waterproof layer, which can prevent seawater from permeating into the inner layer of the steel plate to corrode the inside of the ship steel, thereby protecting the ship steel and prolonging the service life thereof, in addition to the waterproof function. As can be seen from the data in the table, after the waterproof material is coated, the waterproof strength of the mirror board 3 is obviously enhanced, while the waterproof strength of the mirror board in example 4 is obviously the best, so the determined optimal raw material formula is as follows: 25.7 parts of polyurethane, 19.1 parts of methyl isobutyl ketone, 11.1 parts of talcum powder, 7.1 parts of barium sulfate, 3.4 parts of alkyl quaternary ammonium, 14 parts of acrylic emulsion and 1.9 parts of sodium alginate.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (1)
1. The formula of the waterproof layer of the ship steel structure and the manufacturing method thereof comprise a steel plate (2), a resin paint coating layer (6) and a welding bolt (9), and are characterized in that: the rear surface of steel sheet (2) is fixed with mirror board (3), the one end of steel sheet (2) is fixed with connection bolt (5), keep away from steel sheet (2) the one end of connecting bolt (5) is fixed with connection side pipe (1), the front surface of steel sheet (2) is fixed with strong pole (4), resin paint layer (6) installation is fixed the bottom of mirror board (3), the bottom mounting of resin paint layer (6) has corrosion-resistant piece (7), welding bolt (9) installation is fixed the top of connecting bolt (5), operation groove (10) have been seted up on the top of connection side pipe (1), mirror board (3) have coated the one deck waterproof layer, the formula of waterproof layer is:
taking the following raw materials in parts by weight for standby: 25.6-25.8 parts of polyurethane, 18.5-19.7 parts of methyl isobutyl ketone, 9.8-12.4 parts of talcum powder, 5.6-8.6 parts of barium sulfate, 2.6-4.2 parts of alkyl quaternary ammonium, 13.4-14.6 parts of acrylic emulsion and 1.7-2.1 parts of sodium alginate;
the manufacturing method of the waterproof layer comprises the following steps:
s1, pre-prepared organic solvent: mixing polyurethane, methyl isobutyl ketone, alkyl quaternary ammonium and acrylic emulsion, heating to 35-38 ℃, uniformly stirring, and keeping the temperature for 30-40 min;
s2, preparing a waterproof coating: sequentially adding talcum powder, barium sulfate and sodium alginate into the organic solvent in S1, stirring uniformly, heating to 40-45 ℃, and keeping the temperature for 25-30 min;
s3, processing: carrying out ultrasonic treatment on the waterproof coating obtained in the step S2 for 0.5-1h, then cooling to 32-35 ℃, stirring at the rotating speed of 800-;
s4, coating: uniformly coating the waterproof coating obtained in the step S3 on the surface of the mirror panel (3) by using a brush;
s5, drying: and (5) placing the mirror panel (3) obtained in the step (S4) in a cool and ventilated place for drying for 3-5 h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911099881.6A CN110758635A (en) | 2018-12-06 | 2018-12-06 | Formula and manufacturing method of waterproof layer of ship steel structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911099881.6A CN110758635A (en) | 2018-12-06 | 2018-12-06 | Formula and manufacturing method of waterproof layer of ship steel structure |
| CN201811485151.5A CN109501951B (en) | 2018-12-06 | 2018-12-06 | Ship steel structure with anti-corrosion function |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811485151.5A Division CN109501951B (en) | 2018-12-06 | 2018-12-06 | Ship steel structure with anti-corrosion function |
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| CN201811485151.5A Active CN109501951B (en) | 2018-12-06 | 2018-12-06 | Ship steel structure with anti-corrosion function |
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| CN207711526U (en) * | 2018-01-02 | 2018-08-10 | 青岛海特新材料船艇有限公司 | A kind of trip fishing corrosion-resistant plate body of marine light |
| CN108905406A (en) * | 2018-09-21 | 2018-11-30 | 南通朝旭环保科技有限公司 | A kind of waterproof window air filter |
| CN109050901A (en) * | 2018-09-26 | 2018-12-21 | 南通志乐新材料有限公司 | A kind of rainy day express delivery unmanned plane |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109501951A (en) | 2019-03-22 |
| CN109501951B (en) | 2020-01-21 |
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