CN109021767B - Production process of water tank - Google Patents
Production process of water tank Download PDFInfo
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- CN109021767B CN109021767B CN201810553736.XA CN201810553736A CN109021767B CN 109021767 B CN109021767 B CN 109021767B CN 201810553736 A CN201810553736 A CN 201810553736A CN 109021767 B CN109021767 B CN 109021767B
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- water tank
- side wall
- tank cover
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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
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D25/00—Details of other kinds or types of rigid or semi-rigid containers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D25/00—Details of other kinds or types of rigid or semi-rigid containers
- B65D25/34—Coverings or external coatings
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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
-
- 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
- C09D5/03—Powdery paints
- C09D5/033—Powdery paints characterised by the additives
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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
-
- 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
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2244—Oxides; Hydroxides of metals of zirconium
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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
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention discloses a production process of a water tank, which mainly comprises the following steps: 1) the connection of the base and the side wall; 2) inspecting a welding seam; 3) testing pressure; 4) pretreating the water tank cover body, carrying out directional corrosion on the surface of the water tank cover body and forming a corrosion pit on the surface of the water tank cover body; 5) ultrasonic cleaning; 6) coating an epoxy resin layer; 7) and (5) curing. By using the production process, the corrosion resistance of the side wall, the base and the water tank cover body can be greatly improved, and the strong adhesive force of the epoxy resin can effectively resist the erosion of external substances. The cleanliness of the box body before coating can be improved through ultrasonic cleaning, so that the adhesive force between epoxy resin and the metal surface is improved, and the coating effect can also be improved through preheating for a certain time.
Description
Technical Field
The invention relates to a production process of a water tank.
Background
As is well known, most of the existing water storage tanks use steel tanks to improve strength, but the steel tanks are easily corroded in the external environment, thereby reducing the service life. Particularly, the cover at the upper end of the tank is most susceptible to corrosion, which can cause safety issues for some food grade tanks. The bottom of the water tank is easy to cause water leakage due to bearing larger water pressure, and the prior art urgently needs a water tank with better corrosion prevention function and a production process thereof.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a water tank with a better anti-corrosion function and a production process thereof.
In order to achieve the purpose, the technical scheme of the invention is to provide a water tank, which comprises a base and a side wall arranged on the base, wherein the upper end of the side wall is provided with a water tank cover body; the base is circular, the edge of the upper surface of the circular base is provided with an annular convex block, and an annular groove for fixedly inserting the bottom end of the side wall is formed in the annular convex block; a sealing washer is arranged between the annular groove and the bottom end of the side wall, the edge of the opening of the annular groove is welded with the side wall, and a water inlet and a water outlet are arranged on the side wall; the surfaces of the base, the side wall and the water tank cover are all coated with anti-corrosion epoxy resin layers.
Through using this application the water tank, still set up seal ring except that carrying out welded fastening between lateral wall and base, can prevent the emergence of the phenomenon of leaking, the box surface spraying has prevented corrosion epoxy layer simultaneously, has played fine corrosion action of sending out, has improved life and security of using.
Preferably, the base, the side wall and the water tank cover body are made of carbon steel. Such materials may reduce cost.
Preferably, the water tank cover body is circular, an axial through hole is formed in the water tank cover body, inorganic high-temperature glue is filled in the through hole, and the upper end and the lower end of the inorganic high-temperature glue are bonded with the anti-corrosion epoxy resin layer. The anti-corrosion epoxy resin layers at the upper end and the lower end of the water tank cover body can be trained into a whole through the through holes, so that the adhesion firmness degree of the anti-corrosion epoxy resin layers is improved, and the anti-corrosion epoxy resin layers are prevented from falling off.
Preferably, the location at which the rim of the opening of the annular groove is welded to the side wall comprises an inner welding location located inside the side wall and an outer welding location located outside the side wall. The design can improve the connection strength and the sealing strength.
A production process of a water tank, which is the production process of the water tank described in claim 4, comprising the steps of:
1) the base and the side wall are connected, the surfaces of the cast base and the cast side wall are cleaned, high-temperature-resistant sealant is coated on the outer surface of the sealing washer, and the sealing washer coated with the high-temperature-resistant sealant is placed at the bottom of the annular groove; inserting the bottom end of the side wall into the annular groove and extruding the sealing washer to position and fix the base and the side wall; welding the inner welding position and the outer welding position, wherein the welding is performed by using a semi-automatic carbon dioxide arc welding machine;
2) detecting the welding seam, namely testing the welding seam by using an ultrasonic welding seam flaw detector, and detecting whether the inside of the welding seam has the defects of cracks, inclusions, air holes, slag inclusion, incomplete penetration and incomplete fusion and meets the national standard; all the pressure vessel butt welds of ultrasonic flaw detection are qualified in grade I, and the pressure vessel butt welds of local ultrasonic flaw detection are qualified in grade II;
3) testing pressure, namely sealing the upper end of the side wall, applying two atmospheric pressures into the side wall by using an air pump, and immersing the side wall and the base in water; gradually changing the water temperature from-40 ℃ to 40 ℃, and respectively staying at the two end point temperatures for 10 minutes until no bubbles are found to be qualified;
4) pretreating the water tank cover body, and perforating the water tank cover body to form a through hole; carrying out directional corrosion on the surface of the water tank cover and forming a corrosion pit on the surface of the water tank cover;
5) ultrasonic cleaning, namely immersing the side wall and the base which are tested to be qualified in the step 3) and the water tank cover body pretreated in the step 4) into cleaning liquid, wherein the ultrasonic power density is 0.35w/cm, the cleaning time is 5-10min, and the water tank cover body is dried by hot air after cleaning;
6) coating an epoxy resin layer, namely preheating the side wall, the base and the water tank cover body for 10 minutes at the preheating temperature of 180-200 ℃, filling inorganic high-temperature glue into the through hole, and coating the epoxy resin on the surface of the steel body in a dip coating, curtain coating or electrostatic spraying manner to form the epoxy resin layer;
7) and (3) solidifying, namely baking the workpiece in the step 6) at a high temperature of 180-220 ℃ for about 15 minutes, and then melting, leveling and solidifying.
By using the production process, the corrosion resistance of the side wall, the base and the water tank cover body can be greatly improved, and the strong adhesive force of the epoxy resin can effectively resist the erosion of external substances. The cleanliness of the box body before coating can be improved through ultrasonic cleaning, so that the adhesive force between epoxy resin and the metal surface is improved, and the coating effect can also be improved through preheating for a certain time.
Preferably, the epoxy resin layer coated in the step 6) is sprayed by using an epoxy resin powder coating in an electrostatic spraying manner, and the epoxy resin powder coating comprises the following raw materials, by weight, 43 parts of thermosetting acrylic resin, 26 parts of urea-formaldehyde resin, 58 parts of E-44 epoxy resin, 33 parts of sepiolite powder, 7 parts of activated carbon powder, 7 parts of zirconium oxide, 4 parts of urotropine, 9 parts of sodium lignosulfonate and 7 parts of a film forming agent. The epoxy resin powder adopts thermosetting acrylic resin as a main raw material, the adhesion degree of the powder is firstly improved, and the epoxy resin powder has good mechanical strength and electrical insulation property, and is sanitary and environment-friendly; meanwhile, the zirconium oxide and the film forming agent are added, so that the mixing property among the raw materials is enhanced, the surface leveling property of the powder coating is improved, the powder coating has high gloss retention, and the decoration property of the powder coating is improved.
Preferably, the cleaning solution in step 5) comprises the following components: 6% of fatty alcohol-polyoxyethylene ether, 9% of coconut oil alkanolamide, 3% of triethanolamine oleate, 9% of monoethanolamine, 1% of benzotriazole, 2% of EDTA-disodium and 70% of water. The cleaning effect of the cleaning liquid is best, the cleaning liquid and ultrasonic waves form combined cleaning with strong cleaning capability, and oil stain, grease, salt, impurities on the surface of the steel body and ferric chloride impurities generated in the pretreatment process of the water tank cover body are cleaned.
Preferably, the directional corrosion in the step 4) is realized by a directional corrosion membrane assembly, the directional corrosion membrane assembly comprises a composite membrane body, the composite membrane body forms a corrosion bag for accommodating the water tank cover body, the corrosion bag is provided with an opening, and a sealing strip is arranged at the opening; the composite film body comprises an outer film body and an inner film body compounded with the outer film body, wherein a bubble body is arranged on the surface of the inner film body, a hydrochloric acid solution is arranged in the bubble body, and a one-way air suction valve is also arranged on the composite film body;
the directional etching step comprises the following steps: a, placing a water tank cover body into a corrosion bag, and sealing an opening through a sealing strip at the opening; b, connecting the vacuumizing equipment with the one-way air suction valve, vacuumizing the air in the corrosion bag, and stopping vacuumizing; c, extruding and breaking the bubble body through external force, so that the hydrochloric acid solution in the bubble body is in contact reaction with the carbon steel of the water tank cover body, and generating a corrosion pit; d, disassembling the sealing strip, taking out the water tank cover body, and then carrying out subsequent ultrasonic cleaning.
Due to the corrosion mode, the influence of other external gases and impurities is discharged, and the reaction becomes controllable; meanwhile, the bubble body position on the surface of the inner layer film can realize true directional corrosion through reasonable design; the corrosion pits are generated on the surface of the steel piece after the directional corrosion, so that the attachment surface area of the steel piece is increased in the subsequent spraying, and the attachment firmness is improved.
Preferably, the sealing strip comprises a clamping strip and a clamping groove matched with the clamping strip, and the clamping strip and the clamping groove are respectively arranged on the two layers of composite membrane bodies at the opening. Such a design facilitates the disassembly operation.
Preferably, the etch pits are sprayed in step 6) with compensation. Such a design is favorable to forming comparatively smooth and flat surface at the steel surface.
The invention has the advantages and beneficial effects that: by using the water tank, the sealing washer is arranged between the side wall and the base in addition to welding and fixing, so that the water leakage phenomenon can be prevented, and meanwhile, the surface of the tank body is sprayed with the anti-corrosion epoxy resin layer, so that a good corrosion action is achieved, the service life is prolonged, and the use safety is improved; by using the production process, the corrosion resistance of the side wall, the base and the water tank cover body can be greatly improved, and the strong adhesive force of the epoxy resin can effectively resist the erosion of external substances. The cleanliness of the box body before coating can be improved through ultrasonic cleaning, so that the adhesive force between epoxy resin and the metal surface is improved, and the coating effect can also be improved through preheating for a certain time.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of the structure at A in FIG. 1;
FIG. 3 is an enlarged view of the structure at B in FIG. 1;
FIG. 4 is a schematic structural diagram of a directional corrosion membrane module according to the present invention;
FIG. 5 is a schematic diagram of an anti-counterfeit two-dimensional code pattern forming structure according to the present invention;
FIG. 6 is a schematic diagram of a supplemental imprint template of the present invention.
In the figure: 1. a base; 2. a side wall; 3. a water tank cover body; 4. an annular projection; 5. an annular groove; 6. a sealing gasket; 7. a water inlet; 8. a water outlet; 9. a through hole; 10. an anti-corrosion epoxy resin layer; 11. inorganic high-temperature glue; 12. an inner weld location; 13. an outer weld location; 14. an outer film body; 15. an inner layer film body; 17. a sealing strip; 18. a one-way suction valve; 19. a bulb body; 20. clamping the strip; 21. a card slot; 30. an anti-counterfeiting two-dimensional code base map; 31. supplementing the cover printing plate; 32. supplementing the stamping convex block; 33. an anti-counterfeiting two-dimensional code image; 34. a positioning frame; 35. a frame; 36. supplementary information.
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
As shown in fig. 1-6, a water tank comprises a base 1 and a side wall 2 arranged on the base 1, wherein a water tank cover body 3 is arranged at the upper end of the side wall 2; the base 1 is circular, an annular convex block 4 is arranged on the edge of the upper surface of the circular base 1, and an annular groove 5 for fixedly inserting the bottom end of the side wall 2 is arranged on the annular convex block 4; a sealing washer 6 is arranged between the annular groove 5 and the bottom end of the side wall 2, the opening edge of the annular groove 5 is welded with the side wall 2, and a water inlet 7 and a water outlet 8 are arranged on the side wall 2; the surfaces of the base 1, the side wall 2 and the water tank cover body 3 are all coated with anti-corrosion epoxy resin layers 10.
The base 1, the side wall 2 and the water tank cover body 3 are all made of carbon steel.
The water tank cover body 3 is circular, an axial through hole 9 is formed in the water tank cover body 3, an inorganic high-temperature adhesive 11 is filled in the through hole 9, and the upper end and the lower end of the inorganic high-temperature adhesive 11 are bonded with an anti-corrosion epoxy resin layer 10.
The positions at which the edge of the opening of the annular groove 5 is welded to the side wall 2 include an inner welding position 12 inside the side wall 2 and an outer welding position 13 outside the side wall 2.
A production process of a water tank, which is the production process of the water tank described in claim 4, comprising the steps of:
1) the base 1 and the side wall 2 are connected, the surfaces of the base 1 and the side wall 2 which are cast are cleaned, high-temperature-resistant sealant is coated on the outer surface of the sealing washer 6, and the sealing washer 6 coated with the high-temperature-resistant sealant is placed at the bottom of the annular groove 5; inserting the bottom end of the side wall 2 into the annular groove 5 and extruding the sealing washer 6 to position and fix the base 1 and the side wall 2; welding the inner welding position 12 and the outer welding position 13, wherein the welding is performed by using a semi-automatic carbon dioxide arc welding machine;
2) detecting the welding seam, namely testing the welding seam by using an ultrasonic welding seam flaw detector, and detecting whether the inside of the welding seam has the defects of cracks, inclusions, air holes, slag inclusion, incomplete penetration and incomplete fusion and meets the national standard; all the pressure vessel butt welds of ultrasonic flaw detection are qualified in grade I, and the pressure vessel butt welds of local ultrasonic flaw detection are qualified in grade II;
3) performing pressure test, namely sealing the upper end of the side wall 2, applying two atmospheric pressures into the side wall 2 by using an air pump, and immersing the side wall 2 and the base 1 in water; gradually changing the water temperature from-40 ℃ to 40 ℃, and respectively staying at the two end point temperatures for 10 minutes until no bubbles are found to be qualified;
4) pretreating the water tank cover body 3, and perforating the water tank cover body 3 to form a through hole 9; the surface of the water tank cover body 3 is subjected to directional corrosion, and a corrosion pit is formed on the surface of the water tank cover body 3;
5) ultrasonic cleaning, namely immersing the side wall 2 and the base 1 which are qualified in the test in the step 3) and the water tank cover body 3 which is pretreated in the step 4) into cleaning liquid, wherein the ultrasonic power density is 0.35w/cm, the cleaning time is 5-10min, and hot air drying is carried out after cleaning;
6) coating an epoxy resin layer, namely preheating the side wall 2, the base 1 and the water tank cover body 3 for 10 minutes at the preheating temperature of 180-200 ℃, filling inorganic high-temperature glue 11 into the through hole 9, and coating the epoxy resin on the surface of the steel body in a dip coating, curtain coating or electrostatic spraying manner to form the epoxy resin layer; the inorganic high-temperature adhesive 11 used in the step 6) comprises, by weight, 5 parts of MgO, 5 parts of ZnO, 022 parts of Zr, 12031 parts of A, 0.2 part of sodium hydroxide, 2 parts of boric acid, 0.08 part of a thickening agent and 0.2 part of iron dioxide. The components are environment-friendly and can resist high temperature of more than 2000 ℃.
7) And (3) solidifying, namely baking the workpiece in the step 6) at a high temperature of 180-220 ℃ for about 15 minutes, and then melting, leveling and solidifying.
The epoxy resin layer coated in the step 6) is sprayed with epoxy resin powder paint in an electrostatic spraying mode, and the epoxy resin powder paint comprises the following raw materials, by weight, 43 parts of thermosetting acrylic resin, 26 parts of urea-formaldehyde resin, 58 parts of E-44 epoxy resin, 33 parts of sepiolite powder, 7 parts of activated carbon powder, 7 parts of zirconium oxide, 4 parts of urotropine, 9 parts of sodium lignosulfonate and 7 parts of a film forming agent.
The cleaning solution in the step 5) comprises the following components: 6% of fatty alcohol-polyoxyethylene ether, 9% of coconut oil alkanolamide, 3% of triethanolamine oleate, 9% of monoethanolamine, 1% of benzotriazole, 2% of EDTA-disodium and 70% of water.
The directional corrosion in the step 4) is realized through a directional corrosion membrane assembly, the directional corrosion membrane assembly comprises a composite membrane body, the composite membrane body forms a corrosion bag for accommodating the water tank cover body 3, the corrosion bag is provided with an opening, and a sealing strip 17 is arranged at the opening; the composite membrane body comprises an outer membrane body 14 and an inner membrane body 15 compounded with the outer membrane body, a bubble body 19 is arranged on the surface of the inner membrane body 15, hydrochloric acid solution is arranged in the bubble body 19, and a one-way air suction valve 18 is further arranged on the composite membrane body;
the directional etching step comprises the following steps: a, placing the water tank cover body 3 into a corrosion bag, and sealing the opening through a sealing strip 17 at the opening; b, connecting the vacuumizing equipment with the one-way air suction valve 18, vacuumizing the air in the corrosion bag, and stopping vacuumizing; c, extruding and breaking the foam body 19 through external force, so that the hydrochloric acid solution in the foam body 19 is in contact reaction with the carbon steel of the water tank cover body 3 to generate a corrosion pit; d, the sealing strip 17 is disassembled to take out the water tank cover body 3, and then subsequent ultrasonic cleaning is carried out.
The outer-layer film body 14 in the step 4) is a PE outer film with the thickness of 0.3mm, the inner-layer film body 15 is a PE inner film with the thickness of 0.1mm, the wall thickness of the foam body 19 is 0.05-0.1 mm, the volume of the single foam body 19 is 0.01-0.04 ml, and the mass fraction of the hydrochloric acid solution is 5% -15%; the directional etching time is 10 seconds to 60 seconds.
The sealing strip 17 comprises a clamping strip 20 and a clamping groove 21 matched with the clamping strip 20, and the clamping strip 20 and the clamping groove 21 are respectively arranged on the two layers of composite film bodies at the opening.
And 6) performing compensation spraying on the corrosion pits.
As an optimization, in order to improve the anti-counterfeiting effect of the water tank (existing products are easily prevented after being put into the market, and in order to avoid being copied), the water tank is provided with an anti-counterfeiting component, the anti-counterfeiting component comprises an anti-counterfeiting two-dimensional code base image 30 and a supplementary stamping plate 31, the supplementary stamping plate 31 is provided with a supplementary stamping bump 32, and when the supplementary stamping plate 31 and the anti-counterfeiting two-dimensional code base image 30 are stamped in a matching manner, the supplementary stamping bump 32 stamps supplementary information 36 on the anti-counterfeiting two-dimensional code base image 30 to form an anti-counterfeiting two-dimensional code image 33. The outer edge of the anti-counterfeiting two-dimensional code base map 30 is provided with a positioning frame 34, the outer edge of the supplementary stamping plate 31 is matched and positioned with the positioning frame 34, the bottom of the supplementary stamping plate 31 is provided with a frame 35 with the same thickness as the stamping bump, and the stamping stability is facilitated. The anti-counterfeiting two-dimensional code base map 30 is arranged in a matrix form and is formed by combining a plurality of black information points, blank points are distributed in the middle of the anti-counterfeiting two-dimensional code base map, and the supplementary information 36 is used for stamping one or more information points on the blank points to form a new information combination, so that the information of the two-dimensional code is changed. The two-dimensional codes in fig. 5 are schematically arranged, and are not in an actual two-dimensional code arrangement manner.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and improvements can be made without departing from the technical principle of the present invention, and these modifications and improvements should also be considered as the protection scope of the invention.
Claims (5)
1. A production process of a water tank is characterized by comprising the following steps: the water tank comprises a base and a side wall arranged on the base, and a water tank cover body is arranged at the upper end of the side wall; the base is circular, the edge of the upper surface of the circular base is provided with an annular convex block, and an annular groove for fixedly inserting the bottom end of the side wall is formed in the annular convex block; a sealing washer is arranged between the annular groove and the bottom end of the side wall, the edge of the opening of the annular groove is welded with the side wall, and a water inlet and a water outlet are arranged on the side wall; the surfaces of the base, the side wall and the water tank cover are all sprayed with anti-corrosion epoxy resin layers; the sealing strip comprises a clamping strip and a clamping groove matched with the clamping strip, and the clamping strip and the clamping groove are respectively arranged on the two layers of composite film bodies at the opening;
the production process comprises the following steps:
1) the base and the side wall are connected, the surfaces of the cast base and the cast side wall are cleaned, high-temperature-resistant sealant is coated on the outer surface of the sealing washer, and the sealing washer coated with the high-temperature-resistant sealant is placed at the bottom of the annular groove; inserting the bottom end of the side wall into the annular groove and extruding the sealing washer to position and fix the base and the side wall; welding the inner welding position and the outer welding position, wherein the welding is performed by using a semi-automatic carbon dioxide arc welding machine;
2) detecting the welding seam, namely testing the welding seam by using an ultrasonic welding seam flaw detector, and detecting whether the inside of the welding seam has the defects of cracks, inclusions, air holes, slag inclusion, incomplete penetration and incomplete fusion and meets the national standard; all the pressure vessel butt welds of ultrasonic flaw detection are qualified in grade I, and the pressure vessel butt welds of local ultrasonic flaw detection are qualified in grade II;
3) testing pressure, namely sealing the upper end of the side wall, applying two atmospheric pressures into the side wall by using an air pump, and immersing the side wall and the base in water; gradually changing the water temperature from-40 ℃ to 40 ℃, and respectively staying at the two end point temperatures for 10 minutes until no bubbles are found to be qualified;
4) pretreating the water tank cover body, and perforating the water tank cover body to form a through hole; carrying out directional corrosion on the surface of the water tank cover and forming a corrosion pit on the surface of the water tank cover;
the directional corrosion is realized through a directional corrosion membrane assembly, the directional corrosion membrane assembly comprises a composite membrane body, the composite membrane body forms a corrosion bag for accommodating a water tank cover body, the corrosion bag is provided with an opening, and a sealing strip is arranged at the opening; the composite film body comprises an outer film body and an inner film body compounded with the outer film body, wherein a bubble body is arranged on the surface of the inner film body, a hydrochloric acid solution is arranged in the bubble body, and a one-way air suction valve is also arranged on the composite film body;
the directional etching step comprises the following steps: a, placing a water tank cover body into a corrosion bag, and sealing an opening through a sealing strip at the opening; b, connecting the vacuumizing equipment with the one-way air suction valve, vacuumizing the air in the corrosion bag, and stopping vacuumizing; c, extruding and breaking the bubble body through external force, so that the hydrochloric acid solution in the bubble body is in contact reaction with the carbon steel of the water tank cover body, and generating a corrosion pit; d, disassembling the sealing strip, taking out the water tank cover body, and then carrying out subsequent ultrasonic cleaning;
5) ultrasonic cleaning, namely immersing the side wall and the base which are tested to be qualified in the step 3) and the water tank cover body pretreated in the step 4) into cleaning liquid, wherein the ultrasonic power density is 0.35w/cm, the cleaning time is 5-10min, and the water tank cover body is dried by hot air after cleaning;
6) coating an epoxy resin layer, namely preheating the side wall, the base and the water tank cover body for 10 minutes at the preheating temperature of 180-200 ℃, filling inorganic high-temperature glue into the through hole, and coating epoxy resin powder paint on the surface of the steel body in an electrostatic spraying manner to form the epoxy resin layer;
7) and (3) solidifying, namely baking the workpiece in the step 6) at a high temperature of 180-220 ℃ for about 15 minutes, and then melting, leveling and solidifying.
2. A process for the production of a tank as claimed in claim 1, characterized in that: the epoxy resin layer coated in the step 6) is sprayed with epoxy resin powder paint in an electrostatic spraying mode, and the epoxy resin powder paint comprises the following raw materials, by weight, 43 parts of thermosetting acrylic resin, 26 parts of urea-formaldehyde resin, 58 parts of E-44 epoxy resin, 33 parts of sepiolite powder, 7 parts of activated carbon powder, 7 parts of zirconium oxide, 4 parts of urotropine, 9 parts of sodium lignosulfonate and 7 parts of a film forming agent.
3. A process for the production of a tank as claimed in claim 2, characterized in that: the cleaning solution in the step 5) comprises the following components: 6% of fatty alcohol-polyoxyethylene ether, 9% of coconut oil alkanolamide, 3% of triethanolamine oleate, 9% of monoethanolamine, 1% of benzotriazole, 2% of EDTA-disodium and 70% of water.
4. A process for the production of a tank as claimed in claim 3, characterized in that: and 6) performing compensation spraying on the corrosion pits.
5. The process for producing a water tank as claimed in claim 4, wherein: the base, the side wall and the water tank cover body are all made of carbon steel.
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| CN201610889731.5A CN106428912B (en) | 2016-10-12 | 2016-10-12 | A kind of water tank and its production technology |
| CN201810553736.XA CN109021767B (en) | 2016-10-12 | 2016-10-12 | Production process of water tank |
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| CN201810553756.7A Active CN108706192B (en) | 2016-10-12 | 2016-10-12 | The production technology of water tank |
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| CN107606864A (en) * | 2017-09-19 | 2018-01-19 | 合肥惠科金扬科技有限公司 | A kind of spray module of refrigerator |
| CN110153597A (en) * | 2019-05-06 | 2019-08-23 | 苏州金同源金属科技有限公司 | A kind of welding product sealing technology |
| CN111696753A (en) * | 2020-04-02 | 2020-09-22 | 山东电力设备有限公司 | Voltage-equalizing ball for transformer |
| CN114484151B (en) * | 2022-04-01 | 2022-06-17 | 四川工程职业技术学院 | Natural gas pipeline welded junction corrosion prevention device and method for corrosion prevention construction by using same |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1080663A (en) * | 1996-09-09 | 1998-03-31 | Asahi Glass Co Ltd | Structure having corrosion resistant coating film and formation of corrosion resistant coating film |
| CN201109603Y (en) * | 2007-11-20 | 2008-09-03 | 曾来运 | Corrosion-resistant stainless steel water storage device |
| CN103254731A (en) * | 2013-04-09 | 2013-08-21 | 刘庆芳 | Powder coating with thermosetting acrylic resin as main material and preparation method thereof |
| CN104930269A (en) * | 2015-04-24 | 2015-09-23 | 江苏澄工机械制造有限公司 | Spiral gas drainage pipe provided with epoxy resin layer and machining method thereof |
| CN204685679U (en) * | 2015-05-22 | 2015-10-07 | 德阳东钢钢绳有限公司 | Water tank drawbench drainage structure and water tank drawbench thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1025581A (en) * | 1996-07-12 | 1998-01-27 | Toppan Printing Co Ltd | Production of etched parts |
| US20050214527A1 (en) * | 2004-03-29 | 2005-09-29 | Dudick, Inc. | Method for coating potable water tanks and coated structures for contact with potable water |
| CN201089956Y (en) * | 2007-09-29 | 2008-07-23 | 李体云 | Water tank with protective layer |
| CN204713775U (en) * | 2015-05-29 | 2015-10-21 | 上海竞盛集装箱制造有限公司 | A kind of freight container potable water box body structure |
-
2016
- 2016-10-12 CN CN201610889731.5A patent/CN106428912B/en active Active
- 2016-10-12 CN CN201810553736.XA patent/CN109021767B/en active Active
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1080663A (en) * | 1996-09-09 | 1998-03-31 | Asahi Glass Co Ltd | Structure having corrosion resistant coating film and formation of corrosion resistant coating film |
| CN201109603Y (en) * | 2007-11-20 | 2008-09-03 | 曾来运 | Corrosion-resistant stainless steel water storage device |
| CN103254731A (en) * | 2013-04-09 | 2013-08-21 | 刘庆芳 | Powder coating with thermosetting acrylic resin as main material and preparation method thereof |
| CN104930269A (en) * | 2015-04-24 | 2015-09-23 | 江苏澄工机械制造有限公司 | Spiral gas drainage pipe provided with epoxy resin layer and machining method thereof |
| CN204685679U (en) * | 2015-05-22 | 2015-10-07 | 德阳东钢钢绳有限公司 | Water tank drawbench drainage structure and water tank drawbench thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109021767A (en) | 2018-12-18 |
| CN106428912B (en) | 2018-06-22 |
| CN108706192A (en) | 2018-10-26 |
| CN108706192B (en) | 2019-07-09 |
| CN106428912A (en) | 2017-02-22 |
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Effective date of registration: 20221206 Address after: 271024 Room 3562, Building 9, Taishan Science and Technology Industrial Park, Yitianmen Street, High tech Zone, Tai'an City, Shandong Province Patentee after: Taian Boxin Energy Equipment Co.,Ltd. Address before: No. 199, Weiwu Road, Yueqing City, Wenzhou City, Zhejiang Province 325600 Patentee before: YUEQING HUAZUN ELECTRIC Co.,Ltd. |