CN117160815A - Container surface treatment method and container - Google Patents
Container surface treatment method and container Download PDFInfo
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- CN117160815A CN117160815A CN202210594350.XA CN202210594350A CN117160815A CN 117160815 A CN117160815 A CN 117160815A CN 202210594350 A CN202210594350 A CN 202210594350A CN 117160815 A CN117160815 A CN 117160815A
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- container
- protective layer
- powder
- surface treatment
- treatment method
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- 238000000034 method Methods 0.000 title claims abstract description 71
- 238000004381 surface treatment Methods 0.000 title claims abstract description 40
- 239000011241 protective layer Substances 0.000 claims abstract description 109
- 239000000843 powder Substances 0.000 claims abstract description 100
- 238000005507 spraying Methods 0.000 claims abstract description 51
- 239000000853 adhesive Substances 0.000 claims abstract description 29
- 230000001070 adhesive effect Effects 0.000 claims abstract description 29
- 239000010410 layer Substances 0.000 claims description 49
- 239000003973 paint Substances 0.000 claims description 23
- 235000013312 flour Nutrition 0.000 claims description 19
- 238000007781 pre-processing Methods 0.000 claims description 11
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 10
- 238000004140 cleaning Methods 0.000 claims description 9
- 238000005488 sandblasting Methods 0.000 claims description 9
- 238000005498 polishing Methods 0.000 claims description 6
- 238000009713 electroplating Methods 0.000 claims description 4
- 239000007921 spray Substances 0.000 claims description 4
- 238000010422 painting Methods 0.000 claims description 3
- 238000005260 corrosion Methods 0.000 abstract description 24
- 230000007797 corrosion Effects 0.000 abstract description 22
- 230000007613 environmental effect Effects 0.000 abstract description 8
- 239000002585 base Substances 0.000 description 20
- 239000011248 coating agent Substances 0.000 description 14
- 238000000576 coating method Methods 0.000 description 14
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical group [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 13
- 229910052725 zinc Inorganic materials 0.000 description 13
- 239000011701 zinc Substances 0.000 description 13
- 238000003466 welding Methods 0.000 description 6
- 239000004593 Epoxy Substances 0.000 description 5
- 238000005034 decoration Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000004814 polyurethane Substances 0.000 description 4
- 229920002635 polyurethane Polymers 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000012535 impurity Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 239000002893 slag Substances 0.000 description 3
- 206010010356 Congenital anomaly Diseases 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- -1 pits Substances 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 238000007592 spray painting technique Methods 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 239000012611 container material Substances 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000037452 priming Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
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- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention discloses a surface treatment method of a container and the container, wherein the surface treatment method comprises the following steps: arranging a first protective layer on the surface of the container; carrying out powder spraying and curing on the container provided with the first protective layer; the adhesive coefficient of the powder on the first protective layer is larger than that of the powder on the surface of the container, and the adhesive coefficient refers to the adhesive capability of the powder on the first protective layer and/or the surface of the container. The surface treatment method can ensure that the treated container has high weather resistance and high corrosion resistance, can also consider economy and practicability, has relatively low cost and strong environmental protection, and does not pollute the environment.
Description
Technical Field
The invention relates to the technical field of container manufacturing, in particular to a surface treatment method of a container and the container.
Background
At present, the container in the prior art can adopt a powder spraying process to carry out surface treatment on the container, and the powder spraying has the advantages of high cost, good environmental protection and lower pollution in practice. However, it is difficult to ensure that the powder has strong adhesive force and corrosion resistance on the surface of the container by adopting the powder spraying process, and further, the safety of the container is difficult to ensure.
Disclosure of Invention
The invention aims to provide a surface treatment method of a container and a new technical scheme of the container, which at least can solve the problems of poor adhesive force of powder on the surface of the container and the like caused by directly adopting a powder spraying process for the container in the prior art.
In a first aspect of the present invention, there is provided a surface treatment method for a container, comprising the steps of:
arranging a first protective layer on the surface of the container;
carrying out powder spraying and curing on the container provided with the first protective layer;
the adhesive coefficient of the powder on the first protective layer is larger than that of the powder on the surface of the container, and the adhesive coefficient refers to the adhesive capability of the powder on the first protective layer and/or the surface of the container.
Optionally, before the step of disposing the first protective layer on the surface of the container, the method further includes:
and carrying out pretreatment on the container, wherein the pretreatment is to polish and clean the surface of the container.
Optionally, before the step of disposing the first protective layer on the surface of the container, the method further includes:
preprocessing the surface of the container, wherein the preprocessing is to rust-remove the container and set a second protective layer;
or the surface of the container is pretreated, the pretreatment is to remove rust from the container and set the second protective layer, the pretreated container is pretreated, and the pretreatment is to polish and clean the surface of the container.
Optionally, before the step of disposing the first protective layer on the surface of the container, the method further includes:
the surface of the workpiece is pretreated, wherein the pretreatment is to remove rust from the workpiece and set a second protective layer;
and assembling the pretreated workpiece into the container, and carrying out pretreatment on the assembled container, wherein the pretreatment is to polish and clean the surface of the container.
Optionally, the first protective layer and/or the second protective layer are/is provided on the surface of the container, and at least one of electroplating, anode, paint spraying and sand blasting is performed on the surface of the container.
Optionally, the first protective layer and the second protective layer are provided as a spray paint.
Optionally, the thickness of the second protective layer provided on the surface of the container is 5-15 μm.
Optionally, the thickness of the first protective layer provided on the surface of the container is 10-30 μm.
Optionally, the steps of sanding and surface cleaning the container include:
polishing the container;
and cleaning the polished container under high air pressure.
Optionally, the step of assembling the pretreated workpiece into the container and pretreating the assembled container further includes:
and carrying out sand blasting treatment on the assembly part of the workpiece assembled into the container.
Optionally, the step of powder spraying and curing the container provided with the first protective layer comprises:
spraying base powder on the surface of the first protective layer of the container, and performing semi-curing to form a base powder layer;
and spraying flour on the surface of the bottom powder layer of the container, and curing to form a flour layer.
Optionally, the base powder layer is 60-80 μm thick, and the flour layer is 60-80 μm thick.
Optionally, the semi-curing temperature is 150-250 ℃, the semi-curing time is 20-40min, the curing temperature is 150-250 ℃, and the curing time is 50-70 min.
In a second aspect of the present invention, there is provided a container surface treated by the surface treatment method of the container described in the above embodiment.
According to the surface treatment method of the container, the first protective layer is arranged on the surface of the container, and powder spraying and curing are carried out on the first protective layer, so that on one hand, the corrosion resistance of the container can be improved, on the other hand, the adhesive force between the powder layer and the first protective layer can be improved, the good adhesive force between each film layer is ensured, the performance is excellent, and the treated container is ensured to have high weather resistance and high corrosion resistance. Meanwhile, the surface treatment method can reduce the consumption of powder by spraying the powder on the first protective layer, has the advantages of economy and practicality, relatively low cost, good environmental protection and no pollution to the environment.
Other features of the present invention and its advantages will become apparent from the following detailed description of exemplary embodiments of the invention, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which 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.
Fig. 1 is a flowchart of a surface treatment method of a container according to an embodiment of the present invention.
Detailed Description
Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless it is specifically stated otherwise.
The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses.
Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of exemplary embodiments may have different values.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
A surface treatment method of a container according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1, the surface treatment method of the container according to the embodiment of the present invention includes the steps of:
s1, arranging a first protection layer on the surface of a container;
and S2, spraying powder and solidifying the container provided with the first protective layer.
Wherein the adhesion coefficient of the powder on the first protective layer is larger than the adhesion coefficient of the powder on the surface of the container, and the adhesion coefficient refers to the adhesion capability of the powder on the first protective layer and/or the surface of the container.
In other words, the surface treatment method of the container according to the embodiment of the invention is mainly used for surface treatment of the container (particularly large special containers such as large energy storage containers and the like), and improves the corrosion resistance of the container in marine or high salinity environments.
Referring to fig. 1, in the surface treatment method of the present invention, first, a first protective layer may be provided on the surface of a container, and the corrosion resistance of the container may be improved by coating the first protective layer. Then, the container provided with the first protective layer can be subjected to powder spraying and curing to form a powder layer, and the adhesive force of the powder layer and the first protective layer can be further enhanced.
The adhesion coefficient of the powder on the first protective layer is greater than the adhesion coefficient of the powder on the surface of the container. Wherein the adhesion coefficient refers to the adhesion of the powder to the surface of the first protective layer and/or the container. That is, the adhesion coefficient is understood to be the amount of the powder adhering to the solid, and the larger the adhesion coefficient is, the larger the adhesion ability is, that is, the less liable to fall off.
If the surface of the container is directly subjected to the powder spraying treatment, on the one hand, the powder is environmentally friendly but has a relatively high cost. On the other hand, the powder is directly sprayed on the surface of the container, the adhesive force of the powder on the surface of the container is poor, the powder is easy to fall off, and the container is not well protected. Of course, the prior art also adopts a paint spraying process to carry out surface treatment on the container, but the paint spraying process has poor environmental protection, high pollution and higher cost.
Therefore, the invention firstly sets the first protective layer on the surface of the container, and sprays and cures the powder on the first protective layer, so that on one hand, the corrosion resistance of the container can be improved, on the other hand, the adhesive force between the powder layer and the first protective layer can be improved, the good adhesive force between each powder and the first protective layer is ensured, the performance is excellent, and the processed container is ensured to have high weather resistance and high corrosion resistance. Meanwhile, the surface treatment method can reduce the consumption of powder by spraying the powder on the first protective layer, has the advantages of economy and practicality, relatively low cost, good environmental protection and no pollution to the environment.
According to one embodiment of the invention, the step of providing the first protective layer on the surface of the container further comprises, prior to: the container is pretreated by polishing and surface cleaning. After the container is polished and cleaned, embroidery layers, pollutants and the like on the surface of the container can be removed, so that the first protective layer is convenient to set, and adhesion among the container, the first protective layer and powder is facilitated.
According to one embodiment of the invention, the step of providing the first protective layer on the surface of the container further comprises, prior to: and (3) preprocessing the surface of the container, wherein the preprocessing is to rust-remove the container and set a second protective layer. Through pretreatment of the surface of the container, the mechanical property of the material surface of the container can be improved, the fatigue resistance of the container material is improved, the adhesion force between the surface of the container and a subsequent coating (such as a first protective layer, a powder layer and other film layers) is enhanced, the durability of each film layer is prolonged, and the leveling and decoration of the coating are facilitated. By arranging the second protective layer on the surface of the container, the phenomenon of embroidery back on the surface of the container can be prevented.
Or, the surface of the container may be pretreated, the pretreatment is to remove rust from the container and set a second protective layer, and then the pretreated container is pretreated, and the pretreatment is to polish and clean the surface of the container. And (3) preprocessing the preprocessed container to polish and clean the surface of the container, and ensuring the adhesive force and corrosion resistance of the container after powder spraying. And then, the first protective layer can be arranged on the container after pretreatment, so that the corrosion resistance of the further film layers is improved, the good adhesion between the film layers is ensured, the performance is excellent, and the treated container is ensured to have high weather resistance and high corrosion resistance.
Before the powder spraying process, the invention can remove the rust layer, pits, oil dirt, water and other impurities on the container through pretreatment and pretreatment, thereby avoiding the problems of poor appearance, congenital hidden danger and the like of the film layer caused by directly spraying powder on the surface of the container, and preventing the performance of the film such as water resistance, oil resistance, weather resistance, acid and alkali resistance and the like from being reduced. Over time, the film layer is further prevented from being slowly peeled off to generate rust spots, the protective capability of the film layer to the base material is reduced, and the appearance quality of the product is directly affected.
According to one embodiment of the invention, the step of providing the first protective layer on the surface of the container further comprises, prior to:
and (3) preprocessing the surface of the workpiece, wherein the preprocessing is to rust-remove the workpiece and set a second protective layer. And assembling the pretreated workpieces into a container, and carrying out pretreatment on the assembled container, wherein the pretreatment is to polish and clean the surface of the container.
That is, before the first protective layer is provided on the surface of the container, first, the surface of the workpiece may be pretreated, the workpiece may be sand blasted for rust removal, and a second protective layer may be provided. The workpiece may be a sheet metal material used to make containers. By pretreatment of the surface of the workpiece, the mechanical property of the surface of the workpiece can be improved, the fatigue resistance of the workpiece is improved, the adhesive force between the workpiece and a subsequent coating (such as an electrochemical protective layer, a powder layer and other film layers) is enhanced, the durability of each film layer is prolonged, and the leveling and decoration of the coating are facilitated. By arranging the second protective layer on the surface of the workpiece, the phenomenon of embroidery back on the surface of the workpiece can be prevented.
The invention can use the abrasive to impact and cut the surface of the workpiece, so that the surface of the workpiece has certain cleanliness (Sa is more than or equal to 2.5) and different roughness (is less than or equal to 40 mu m), thereby improving the mechanical property of the surface of the workpiece, enhancing the fatigue resistance of the workpiece, increasing the adhesive force with the coating, prolonging the durability of the coating and being beneficial to leveling and decoration of the coating.
In some embodiments of the invention, the first protective layer and/or the second protective layer is/are provided on the surface of the container by at least one of electroplating, anode, painting, and sandblasting. The first protective layer or the second protective layer can be formed by electroplating, anode, paint spraying or sand blasting on the surface of the container. In the present invention, the case of painting the surface of the container to form the first protective layer or the second protective layer is specifically described, and specifically, the first protective layer and the second protective layer are provided as paint. The purpose of spraying the primer is to form electrochemical protection on the surface of a workpiece or a container, so that the weather resistance and the corrosion resistance of the container are improved.
The primer can be zinc-rich primer, epoxy primer or the like. Wherein, the anticorrosion capability of the zinc-rich primer is better than that of the epoxy primer. In the invention, zinc-rich primer can be sprayed on the surface of a workpiece and the part to be welded in the subsequent assembling and constructing process of the container. The zinc-rich primer is sprayed, so that the workpiece after the sand blasting treatment is prevented from being embroidered, and impurities such as welding slag and the like can be prevented from adhering to the surface of the workpiece.
In some embodiments of the invention, the second protective layer provided on the surface of the container has a thickness of 5-15 μm. The first protective layer provided on the surface of the container has a thickness of 10-30 μm. That is, the thickness of the second protective layer provided during the pretreatment of the container may be 5-15 μm, for example, the film thickness of the zinc-rich primer (second protective layer) sprayed on the surface of the container may be 5-15 μm. The thickness of the first protective layer provided on the surface of the container after pretreatment may be 10-30 μm, for example, the thickness of the zinc-rich primer sprayed may be 10-30 μm.
The invention can spray a layer of priming paint on the surface of the clean container body for the pretreated container. The sprayed primer of the present invention may be a zinc-rich primer or an epoxy primer. Optionally, a zinc-rich primer may be sprayed onto the surface of the clean container. The thickness of the film layer of the zinc-rich primer is approximately 10-30 mu m, and the corrosion resistance of the coating is further improved.
It should be noted that, the first protective layer and the second protective layer of the present invention also use a paint spraying process, but compared with the conventional paint spraying process in the prior art, the surface treatment is directly performed on the surface of the container only by paint spraying. The paint spraying treatment method in the prior art has poor environmental protection and great pollution to the environment. The invention reduces the consumption of paint by spraying paint after the first protective layer and the second protective layer (for example, the first protective layer and the second protective layer can adopt a paint spraying process), ensures the performances of corrosion resistance and the like of the container and reduces the pollution to the environment. Meanwhile, the powder is sprayed on the primer, so that the consumption of the powder can be reduced, the cost can be reduced, and the adhesive force between the powder and the primer can be improved.
In the present invention, the thickness (10-30 μm) of the first protective layer may be greater than the thickness (5-15 μm) of the paint (second protective layer) during the pretreatment, and less than the thickness (60-80 μm) of the primer. The thickness (5-15 μm) of the paint sprayed in the pretreatment process is only required to ensure that no back embroidery appears on the surface in the pretreatment process of the workpiece. The thickness of the first protective layer sprayed after the pretreatment (10-30 μm) and the thickness of the base powder sprayed later (60-80 μm) need to be cured to improve the adhesion therebetween. Therefore, the thickness of the first protective layer can be larger than the thickness of the pretreated paint (the thickness of the second protective layer) and smaller than the thickness of the powder spraying, so that the adhesive force and the corrosion resistance after the powder spraying are ensured.
The invention adopts the mode of spraying paint (for example, the first protective layer and the second protective layer can adopt a paint spraying process) and then spraying powder, and the thickness of the sprayed powder can be larger than that of the sprayed paint, so that the disadvantages of the traditional paint spraying process can be reduced as much as possible, the consumption of powder in the powder spraying process can be reduced, the cost can be reduced, and the adhesive force between the powder and a paint layer can be improved.
In some embodiments of the invention, the steps of sanding and surface cleaning the container include:
polishing the container;
and (5) carrying out high-pressure cleaning on the polished container.
The invention assembles the pretreated workpiece into the container, and the step of preprocessing the assembled container further comprises:
and carrying out sand blasting treatment on the assembly part of the workpiece assembled into the container.
In other words, in the process of polishing and surface cleaning the container, first, large-sized workpieces are assembled and welded into the container, and in this process, the welded portion of the container is secondarily sandblasted. As the welding part of the container has the defects of welding slag and the like, the welding part can be ensured to be smooth and defect-free by polishing and local sand blasting. The welded container is easy to wear and oil stain of zinc-rich primer in the welding process, and the whole outer container is polished manually, so that the outer container is ensured to have no bad defects such as oil stain, welding slag and the like. In the pretreatment process, the polished box body can be cleaned by high-pressure air, so that the cleaning of the surface of the box body before spraying is ensured, and the adhesive force between the subsequent film layers is improved.
According to the invention, the surface of the workpiece is pretreated, and the pretreated workpiece is assembled, so that the mechanical property of the surface of the workpiece is improved, the fatigue resistance of the workpiece is improved, the adhesion between the workpiece and a subsequent coating (such as a first protective layer, a second protective layer, a powder layer and other film layers) is enhanced, the durability of each film layer is prolonged, and the leveling and decoration of the coating are facilitated. Meanwhile, in the pretreatment process, the second protective layer is arranged on the surface of the workpiece to serve as electrochemical protection, so that the phenomenon of embroidery back on the surface of the workpiece can be prevented.
The invention can be used for preprocessing the container after assembling the preprocessed workpieces into the container. The surface of the container can be polished and cleaned through pretreatment, so that the adhesive force and the corrosion resistance of the container after powder spraying are higher.
Before the powder spraying process, the method removes impurities such as rust layers, pits, oil dirt, water and the like on the metal workpiece through pretreatment and pretreatment, avoids the problems of poor appearance, congenital hidden danger and the like of a film layer caused by directly spraying powder on the surface of the workpiece, and prevents the performance such as water resistance, oil resistance, weather resistance, acid and alkali resistance and the like of a coating film from being reduced. And further prevent the membrane layer from peeling off slowly over time, produce the rust spot, reduce the protective capability of membrane layer to the substrate, directly influence the appearance quality of product.
In some embodiments of the invention, the step of powder spraying and curing the container provided with the first protective layer comprises:
spraying base powder on the surface of the first protective layer of the container, and performing semi-curing to form a base powder layer;
flour is sprayed on the surface of the bottom powder layer of the container, and the surface is solidified to form a flour layer.
That is, in the process of spraying powder and curing the container provided with the first protective layer, first, a primer may be sprayed on the surface of the container. The base powder adopts a base powder with high anti-corrosion performance, for example, zinc-rich base powder or epoxy base powder can be adopted as the base powder. Wherein, the anticorrosion capability of the zinc-rich base powder is better than that of the epoxy base powder. In the invention, a layer of zinc-rich bottom powder can be sprayed, so that the surface of the container can be ensured to have strong ground material cladding property and high metal corrosion resistance. Alternatively, the thickness of the base powder sprayed on the surface of the container may be 60-80 μm. And then semi-curing the base powder to form a base powder layer. Wherein the semi-curing temperature is 150-250deg.C (e.g., 200deg.C), and the semi-curing time is 20-40min (e.g., 30 min).
And then spraying flour on the surface of the bottom powder layer of the container, and curing to form a flour layer. The flour can be polyester type, polyurethane type, acrylic acid type, polyester mixed type or polyurethane mixed type flour, and optionally, the flour can be polyurethane mixed type flour, and the polyurethane mixed type flour has good coating property, weather resistance and corrosion resistance. And the weather resistance of the coating film is provided while the better surface effect is provided. Alternatively, the sprayed flour may have a film thickness of 60-80 μm. The curing temperature may be 150-250 ℃ (e.g., 200 ℃), and the curing time may be 50-70 minutes (e.g., 60 minutes). Of course, in the present invention, conditions such as the semi-curing and curing temperature, time, etc. may be specifically set according to actual needs, and will not be described in detail in the present invention.
According to the invention, through the semi-solidification of the base powder and the solidification of the flour, the base powder is completely solidified when the flour is solidified again, the adhesive force between the base powder and the flour is enhanced, and the integral weather resistance and the anti-corrosion performance of the container are improved.
Compared with the spray painting process in the prior art, the spray painting process adopted by the surface treatment method of the container has the advantages of low cost, strong environmental protection and no pollution to the environment. The surface treatment method of the invention solves the problems of large volume and weight of the container and incapability of pretreatment in the prior art by adopting a powder spraying process. In the pretreatment process, the surface of the container is polished and cleaned by adding related matched treatment, so that the effect of pretreatment is achieved, and the adhesive force and the corrosion resistance of the sprayed powder are ensured.
In summary, according to the surface treatment method for the container provided by the embodiment of the invention, the first protective layer is arranged on the surface of the container, and powder spraying and curing are performed on the first protective layer, so that on one hand, the corrosion resistance of the container can be improved, on the other hand, the adhesive force between the powder layer and the first protective layer can be improved, the good adhesive force between each film layer is ensured, the performance is excellent, and the treated container is ensured to have high weather resistance and high corrosion resistance. Meanwhile, the surface treatment method can reduce the consumption of powder by spraying the powder on the first protective layer, has the advantages of economy and practicality, relatively low cost, good environmental protection and no pollution to the environment.
According to a second aspect of the present invention, there is provided a container surface treated by the surface treatment method of the container in the above embodiment. The surface treatment method of the container according to the embodiment of the invention has the technical effects, so that the container according to the embodiment of the invention has the corresponding technical effects, namely, the container can be ensured to have high weather resistance and high corrosion resistance by adopting the surface treatment method.
Of course, other structures of the container will be understood and can be implemented by those skilled in the art, and will not be described in detail in the present invention.
While certain specific embodiments of the invention have been described in detail by way of example, it will be appreciated by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.
Claims (14)
1. A method for treating the surface of a container, comprising the steps of:
arranging a first protective layer on the surface of the container;
carrying out powder spraying and curing on the container provided with the first protective layer;
the adhesive coefficient of the powder on the first protective layer is larger than that of the powder on the surface of the container, and the adhesive coefficient refers to the adhesive capability of the powder on the first protective layer and/or the surface of the container.
2. The method of surface treatment of a container according to claim 1, further comprising, prior to the step of disposing the first protective layer on the surface of the container:
and carrying out pretreatment on the container, wherein the pretreatment is to polish and clean the surface of the container.
3. The method of surface treatment of a container according to claim 1, further comprising, prior to the step of disposing the first protective layer on the surface of the container:
preprocessing the surface of the container, wherein the preprocessing is to rust-remove the container and set a second protective layer;
or the surface of the container is pretreated, the pretreatment is to remove rust from the container and set the second protective layer, the pretreated container is pretreated, and the pretreatment is to polish and clean the surface of the container.
4. The method of claim 1, further comprising, prior to the step of disposing the first protective layer on the surface of the container:
the surface of the workpiece is pretreated, wherein the pretreatment is to remove rust from the workpiece and set a second protective layer;
and assembling the pretreated workpiece into the container, and carrying out pretreatment on the assembled container, wherein the pretreatment is to polish and clean the surface of the container.
5. The surface treatment method of a container according to claim 3 or 4, wherein the first protective layer and/or the second protective layer is provided on the surface of the container by at least one of electroplating, anode, painting, and sand blasting.
6. The method of claim 5, wherein the first protective layer and the second protective layer are provided as a spray paint.
7. The surface treatment method of a container according to claim 5, wherein the second protective layer provided on the surface of the container has a thickness of 5-15 μm.
8. The surface treatment method of a container according to claim 1, wherein the first protective layer provided on the surface of the container has a thickness of 10-30 μm.
9. A method of surface treatment of a container according to any one of claims 2 to 4, wherein the steps of sanding and surface cleaning the container comprise:
polishing the container;
and cleaning the polished container under high air pressure.
10. The surface treatment method of a container according to claim 4, wherein the steps of assembling the pretreated workpiece into the container and pretreating the assembled container further comprise:
and carrying out sand blasting treatment on the assembly part of the workpiece assembled into the container.
11. The surface treatment method of a container according to claim 1, wherein the step of spraying powder and curing the container provided with the first protective layer comprises:
spraying base powder on the surface of the first protective layer of the container, and performing semi-curing to form a base powder layer;
and spraying flour on the surface of the bottom powder layer of the container, and curing to form a flour layer.
12. The surface treatment method of a container according to claim 11, wherein the base powder layer is 60-80 μm thick and the flour layer is 60-80 μm thick.
13. The surface treatment method of a container according to claim 11, wherein the semi-curing temperature is 150-250 ℃, the semi-curing time is 20-40min, the curing temperature is 150-250 ℃, and the curing time is 50-70 min.
14. A container, characterized in that the surface treatment is performed by using the surface treatment method of a container according to any one of claims 1 to 13.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210594350.XA CN117160815A (en) | 2022-05-27 | 2022-05-27 | Container surface treatment method and container |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210594350.XA CN117160815A (en) | 2022-05-27 | 2022-05-27 | Container surface treatment method and container |
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| Publication Number | Publication Date |
|---|---|
| CN117160815A true CN117160815A (en) | 2023-12-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210594350.XA Pending CN117160815A (en) | 2022-05-27 | 2022-05-27 | Container surface treatment method and container |
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| CN (1) | CN117160815A (en) |
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