CN113524701A - Solvent-free steel plate film coating process - Google Patents
Solvent-free steel plate film coating process Download PDFInfo
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- CN113524701A CN113524701A CN202110675106.1A CN202110675106A CN113524701A CN 113524701 A CN113524701 A CN 113524701A CN 202110675106 A CN202110675106 A CN 202110675106A CN 113524701 A CN113524701 A CN 113524701A
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- steel plate
- film
- glue
- solvent
- washing
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 111
- 239000010959 steel Substances 0.000 title claims abstract description 111
- 238000000034 method Methods 0.000 title claims abstract description 37
- 239000007888 film coating Substances 0.000 title claims abstract description 22
- 238000009501 film coating Methods 0.000 title claims abstract description 22
- 239000003292 glue Substances 0.000 claims abstract description 59
- 238000000576 coating method Methods 0.000 claims abstract description 47
- 239000011248 coating agent Substances 0.000 claims abstract description 46
- 238000005406 washing Methods 0.000 claims abstract description 32
- 238000004026 adhesive bonding Methods 0.000 claims abstract description 26
- 239000000463 material Substances 0.000 claims abstract description 19
- 238000010438 heat treatment Methods 0.000 claims abstract description 18
- 238000004140 cleaning Methods 0.000 claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 238000010030 laminating Methods 0.000 claims abstract description 12
- 238000002161 passivation Methods 0.000 claims abstract description 11
- 238000001816 cooling Methods 0.000 claims abstract description 10
- 238000001035 drying Methods 0.000 claims abstract description 10
- 238000003475 lamination Methods 0.000 claims abstract description 10
- 238000003825 pressing Methods 0.000 claims abstract description 9
- 238000007711 solidification Methods 0.000 claims abstract description 9
- 230000008023 solidification Effects 0.000 claims abstract description 9
- 239000002253 acid Substances 0.000 claims abstract description 8
- 239000012535 impurity Substances 0.000 claims description 11
- 238000006757 chemical reactions by type Methods 0.000 claims description 8
- 239000003085 diluting agent Substances 0.000 claims description 8
- 238000007598 dipping method Methods 0.000 claims description 8
- 238000013008 moisture curing Methods 0.000 claims description 8
- 239000004745 nonwoven fabric Substances 0.000 claims description 8
- 229920002635 polyurethane Polymers 0.000 claims description 8
- 239000004814 polyurethane Substances 0.000 claims description 8
- 238000005498 polishing Methods 0.000 claims description 5
- 238000007517 polishing process Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 5
- 230000003647 oxidation Effects 0.000 abstract description 2
- 238000007254 oxidation reaction Methods 0.000 abstract description 2
- 238000005554 pickling Methods 0.000 description 8
- 239000000243 solution Substances 0.000 description 8
- 239000002131 composite material Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 229920000139 polyethylene terephthalate Polymers 0.000 description 4
- 238000007639 printing Methods 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- 239000007921 spray Substances 0.000 description 4
- 239000012085 test solution Substances 0.000 description 3
- 229920002799 BoPET Polymers 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 239000012939 laminating adhesive Substances 0.000 description 2
- 239000002932 luster Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 238000007605 air drying Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 210000002489 tectorial membrane Anatomy 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
- B29C65/52—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the way of applying the adhesive
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/02—Preparation of the material, in the area to be joined, prior to joining or welding
- B29C66/022—Mechanical pre-treatments, e.g. reshaping
- B29C66/0222—Mechanical pre-treatments, e.g. reshaping without removal of material, e.g. cleaning by air blowing or using brushes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/02—Preparation of the material, in the area to be joined, prior to joining or welding
- B29C66/026—Chemical pre-treatments
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
- B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
- B29C66/45—Joining of substantially the whole surface of the articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/74—Joining plastics material to non-plastics material
- B29C66/742—Joining plastics material to non-plastics material to metals or their alloys
- B29C66/7428—Transition metals or their alloys
- B29C66/74283—Iron or alloys of iron, e.g. steel
Abstract
A solvent-free steel plate film coating process comprises the following steps: the surface to be bonded of the steel plate is subjected to water washing and acid washing, and an oxidation film on the surface of the steel plate can be effectively removed through the water washing and the acid washing, so that the effect of subsequent treatment can be improved; washing the steel plate with water again, and drying after washing to obtain a clean steel plate; passivating the clean steel plate by using a passivating solution to obtain a processed steel plate, wherein the passivation can fill micro pits on the surface of the processed steel plate, so that the binding force of the processed steel plate can be increased, and the surface of the processed steel plate can be smoother, smoother and glossy, so that the product quality and the product reliability are improved; heating glue under a vacuum closed condition, and adding the glue into a coating machine; cleaning a gluing area of a coating machine, and coating glue on the surface of the steel plate through the coating machine; and (3) bonding the glued steel plate and the film material which is not glued by using a film laminating machine, flattening and pressing the surface of the bonded steel plate film material, and then carrying out air cooling solidification to finish film lamination.
Description
Technical Field
The invention relates to the technical field of coated steel plates, in particular to a solvent-free steel plate coating process.
Background
The application of the composite steel plate in industry and life is wide, and the composite steel plate is required to be used in automobiles, refrigerators, washing machines, high-grade furniture, kitchen equipment and the like, wherein the application market of the PET composite steel plate is wide, the PET composite steel plate is divided into two types of non-printing treatment and printing treatment, and the non-printing treatment PET composite steel plate is formed by coating a film-coated adhesive on the surface of the steel plate firstly and then covering a PET film; after the printed PET clad steel plate is coated with the laminating adhesive, the printing ink layer is printed on the laminating adhesive, and finally the PET film is covered.
The existing steel plate film coating process comprises gluing, oven heating, film coating, water cooling and air drying, the method needs to enable a film layer to reach a molten state at the high temperature of 180-240 ℃, and then the film layer is adhered to a steel plate, the process needs to consume a large amount of energy, the production line is long, and the production efficiency is low.
Disclosure of Invention
The invention aims to solve the problem of providing a solvent-free steel plate film coating process which is simple in process, free of solvent pollution, small in usage amount, green and environment-friendly.
In order to solve the technical problems, the invention adopts the technical scheme that: a solvent-free steel plate film coating process comprises the following steps:
the method comprises the following steps: the surface to be bonded of the steel plate is subjected to water washing and acid washing, and an oxidation film on the surface of the steel plate can be effectively removed through the water washing and the acid washing, so that the effect of subsequent treatment can be improved;
step two: washing the steel plate with water again, and drying after washing to obtain a clean steel plate;
step three: passivating the clean steel plate by using a passivating solution to obtain a processed steel plate, wherein the passivation can fill micro pits on the surface of the processed steel plate, so that the binding force of the processed steel plate can be increased, and the surface of the processed steel plate can be smoother, smoother and glossy, so that the product quality and the product reliability are improved;
step four: heating glue under a vacuum closed condition, and adding the glue into a coating machine;
step five: cleaning a gluing area of a coating machine, and coating glue on the surface of the steel plate through the coating machine;
step six: and (3) bonding the glued steel plate and the film material which is not glued by using a film laminating machine, flattening and pressing the surface of the bonded steel plate film material, and then carrying out air cooling solidification to finish film lamination.
Furthermore, the glue is moisture-curing reaction type solvent-free polyurethane glue.
Further, in the third step, the step of cleaning the gluing area of the coater comprises the following steps: the coated web is wiped clean by dipping the non-woven fabric with the diluent, so that the surface of the coated web is smooth and has no impurity residue.
Further, the heating temperature of the glue is 40-120 ℃.
Furthermore, when the film needs to be connected in the film covering process, the two ends of one end film are folded and then glue is supplemented, so that the condition that the film covering is uneven in the film connecting process can be prevented.
Further, the film to be coated is attached to the steel plate coated with the glue through a film coating steel roller.
Further, the pressure roller is lowered after the film is connected, and the position of the film is adjusted according to the plate width.
Further, in the step one, still including the process of polishing, use grinding device to get rid of the oxide and the debris on steel sheet surface, carry out the washing afterwards and get rid of surface ash content, can make the steel sheet surface have certain microcosmic surface through the process of polishing to increase the adhesive force of glue, thereby make the tectorial membrane reach better effect.
Furthermore, the gluing temperature is 40-60 ℃.
Compared with the prior art, the invention has the advantages and positive effects that:
the solvent-free steel plate film coating process provided by the invention mainly solves the problems that the conventional film coating process consumes a large amount of energy, the production line is long, and the production efficiency is low, the film layer does not need to reach a molten state, the film layer can be directly adhered to a steel plate through glue, the surface of the steel plate can have a certain microscopic surface through passivation and pretreatment, and micro pits on the surface of the steel plate can be filled through passivation, so that the binding force can be increased, the surface of the steel plate can be smoother, smoother and glossy, the product quality and the product reliability can be improved, the production process is pollution-free, the solvent-free steel plate film coating process can be used for smaller base materials, is more suitable for the development of the industry and is suitable for industrial production.
Detailed Description
For a better understanding of the present invention, the present invention is further described below in conjunction with specific embodiments.
Example 1:
a solvent-free steel plate film coating process comprises the following steps:
the method comprises the following steps: the method comprises the following steps of removing oxides and impurities on the surface of the steel plate by using a polishing device, then washing to remove surface ash, washing and pickling the surface to be bonded of the steel plate for 30min, removing surface floating soil, pickling, removing surface oxides by using a retarder with the mass concentration of 5% in a pickling solution, and washing again to remove acid by using the pickling solution;
step two: washing the steel plate with water again, and drying the steel plate after washing with water at the drying temperature of 60 ℃ to obtain a clean steel plate;
step three: passivating the clean steel plate by using a passivation solution to obtain a processed steel plate;
step four: heating glue under a vacuum closed condition, wherein the glue is moisture-curing reaction type solvent-free polyurethane glue, the heating temperature of the glue is 40 ℃, and adding the glue into a coating machine;
step five: cleaning a gluing area of a coating machine, and coating glue on the surface of the steel plate by the coating machine, wherein the gluing temperature is 40 ℃;
the cleaning of the gluing area of the coating machine comprises the following steps: the coated spoke is wiped clean by dipping the non-woven fabric with the diluent, so that the surface of the coated spoke is smooth and has no impurity residue;
step six: and (3) bonding the glued steel plate and the film material which is not glued by using a film laminating machine, flattening and pressing the surface of the bonded steel plate film material, and then carrying out air cooling solidification to finish film lamination as an experimental group A.
Example 2:
the first step to the third step are the same as in example 1;
step four: heating glue under a vacuum closed condition, wherein the glue is moisture-curing reaction type solvent-free polyurethane glue, the heating temperature of the glue is 80 ℃, and adding the glue into a coating machine;
step five: cleaning a gluing area of a coating machine, and coating glue on the surface of the steel plate by the coating machine, wherein the gluing temperature is 50 ℃;
the cleaning of the gluing area of the coating machine comprises the following steps: the coated spoke is wiped clean by dipping the non-woven fabric with the diluent, so that the surface of the coated spoke is smooth and has no impurity residue;
step six: and (3) bonding the glued steel plate and the film material which is not glued by using a film laminating machine, flattening and pressing the surface of the bonded steel plate film material, and then carrying out air cooling solidification to finish film lamination and serve as an experimental group B.
Example 3:
the first step to the third step are the same as in example 1;
step four: heating glue under a vacuum closed condition, wherein the glue is moisture-curing reaction type solvent-free polyurethane glue, the heating temperature of the glue is 100 ℃, and adding the glue into a coating machine;
step five: cleaning a gluing area of a coating machine, and coating glue on the surface of the steel plate by the coating machine, wherein the gluing temperature is 60 ℃;
the cleaning of the gluing area of the coating machine comprises the following steps: the coated spoke is wiped clean by dipping the non-woven fabric with the diluent, so that the surface of the coated spoke is smooth and has no impurity residue;
step six: and (3) bonding the glued steel plate and the film material which is not glued by using a film laminating machine, flattening and pressing the surface of the bonded steel plate film material, and then carrying out air cooling solidification to finish film lamination as an experimental group C.
Example 4:
the first step to the third step are the same as in example 1;
step four: heating glue under a vacuum closed condition, wherein the glue is moisture-curing reaction type solvent-free polyurethane glue, the heating temperature of the glue is 120 ℃, and adding the glue into a coating machine;
step five: cleaning a gluing area of a coating machine, and coating glue on the surface of the steel plate by the coating machine, wherein the gluing temperature is 50 ℃;
the cleaning of the gluing area of the coating machine comprises the following steps: the coated spoke is wiped clean by dipping the non-woven fabric with the diluent, so that the surface of the coated spoke is smooth and has no impurity residue;
step six: and (3) bonding the glued steel plate and the film material which is not glued by using a film laminating machine, flattening and pressing the surface of the bonded steel plate film material, and then carrying out air cooling solidification to finish film lamination as an experimental group D.
Example 5:
when a film needs to be connected in the film laminating process, two ends of one end film are folded and then glue is supplemented, and the film to be laminated is attached to the steel plate coated with the glue through the film laminating steel roller.
And after the film is connected, the pressure roller is lowered, and the position of the film is adjusted according to the plate width.
Example 6:
the method comprises the following steps: washing the steel plate with water, and drying the steel plate at the drying temperature of 60 ℃;
step two: passivating the clean steel plate by using a passivation solution to obtain a processed steel plate;
step three: heating glue under a vacuum closed condition, wherein the glue is moisture-curing reaction type solvent-free polyurethane glue, the heating temperature of the glue is 80 ℃, and adding the glue into a coating machine;
step four: cleaning a gluing area of a coating machine, and coating glue on the surface of the steel plate by the coating machine, wherein the gluing temperature is 50 ℃;
the cleaning of the gluing area of the coating machine comprises the following steps: the coated spoke is wiped clean by dipping the non-woven fabric with the diluent, so that the surface of the coated spoke is smooth and has no impurity residue;
step five: and (3) bonding the glued steel plate and the film material which is not glued by using a film laminating machine, flattening and pressing the surface of the bonded steel plate film material, and then carrying out air cooling solidification to finish film lamination as a control group A.
Example 7:
the method comprises the following steps: the method comprises the following steps of removing oxides and impurities on the surface of the steel plate by using a polishing device, then washing to remove surface ash, washing and pickling the surface to be bonded of the steel plate for 30min, removing surface floating soil, pickling, removing surface oxides by using a retarder with the mass concentration of 5% in a pickling solution, and washing again to remove acid by using the pickling solution;
step two: washing the steel plate with water again, and drying the steel plate after washing with water at the drying temperature of 60 ℃ to obtain a clean steel plate;
step three: heating glue under a vacuum closed condition, wherein the glue is moisture-curing reaction type solvent-free polyurethane glue, the heating temperature of the glue is 80 ℃, and adding the glue into a coating machine;
step four: cleaning a gluing area of a coating machine, and coating glue on the surface of the steel plate by the coating machine, wherein the gluing temperature is 50 ℃;
the cleaning of the gluing area of the coating machine comprises the following steps: the coated spoke is wiped clean by dipping the non-woven fabric with the diluent, so that the surface of the coated spoke is smooth and has no impurity residue;
step five: and (3) bonding the glued steel plate and the film material which is not glued by using a film laminating machine, flattening and pressing the surface of the bonded steel plate film material, and then carrying out air cooling solidification to finish film lamination and serve as a control group B.
Experimental example:
control group a: unlike example 2, the steps of grinding, water washing and acid washing were not performed;
control group B: unlike example 2, a step of performing no passivation treatment;
the test solution and the control component are respectively put into a salt spray resistance test box, the test temperature of the salt spray box is 35 ℃, the test solution is 50g/L of NaCl solution, the average sedimentation rate is (1.5 +/-0.5) g/L, the spraying is continued for a period of time, the time of corrosion on the surface of the test solution is measured, and the results are shown in table 1.
Table 1: results of salt spray resistance test
| Experimental group A | Experimental group B | Experimental group C | Experimental group D | Control group A | Control group B | |
| Time | 68 hours | 66 hours | 69 hours | 67 hours | 34 hours | 22 hours |
The flatness and gloss of the steel plate after the lamination and the drying are observed, and the results are shown in Table 2.
Table 2: flatness and gloss results
| Experimental group A | Experimental group B | Experimental group C | Experimental group D | Control group A | Control group B | |
| Flatness of | Leveling | Leveling | Leveling | Leveling | Leveling | Unevenness of the skin |
| Degree of gloss | Gloss of | Gloss of | Gloss of | Gloss of | Dull luster | Dull luster |
It can be known from tables 1 and 2 that whether pretreatment and passivation are performed can affect the effect of coating, and the adhesion force of the surface can be reduced when no pretreatment is performed, so that the coating effect is poor, while passivation is not performed, salt spray corrosion is difficult to effectively prevent, and the surface of the steel plate after pretreatment has a certain microscopic surface, and micro pits on the surface of the steel plate can be filled through passivation, so that the binding force can be increased, and the surface of the steel plate can be smoother, smoother and glossy.
The embodiments of the present invention have been described in detail, but the description is only for the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made within the scope of the present invention should be covered by the present patent.
Claims (9)
1. A solvent-free steel plate film coating process is characterized in that: the method comprises the following steps:
the method comprises the following steps: carrying out water washing and acid washing treatment on the surface to be bonded of the steel plate;
step two: washing the steel plate with water again, and drying after washing to obtain a clean steel plate;
step three: passivating the clean steel plate by using a passivation solution to obtain a processed steel plate;
step four: heating glue under a vacuum closed condition, and adding the glue into a coating machine;
step five: cleaning a gluing area of a coating machine, and coating glue on the surface of the steel plate through the coating machine;
step six: and (3) bonding the glued steel plate and the film material which is not glued by using a film laminating machine, flattening and pressing the surface of the bonded steel plate film material, and then carrying out air cooling solidification to finish film lamination.
2. The solvent-free steel plate film coating process according to claim 1, wherein: the glue is moisture-curing reaction type solvent-free polyurethane glue.
3. The solvent-free steel plate film coating process according to claim 2, wherein: in the third step, the step of cleaning the gluing area of the coating machine comprises the following steps: the coated web is wiped clean by dipping the non-woven fabric with the diluent, so that the surface of the coated web is smooth and has no impurity residue.
4. The solvent-free steel plate film coating process according to claim 1, wherein: the heating temperature of the glue is 40-120 ℃.
5. The solvent-free steel plate film coating process according to claim 1, wherein: when the film needs to be connected in the film laminating process, the two ends of one end film are folded up and then glue is supplemented.
6. The solvent-free steel plate film coating process according to claim 1, wherein: and attaching the film to be coated on the steel plate coated with the glue through the film coating steel roller.
7. The solvent-free steel plate film coating process according to claim 1, wherein: and after the film is connected, the pressure roller is lowered, and the position of the film is adjusted according to the plate width.
8. The solvent-free steel plate film coating process according to claim 1, wherein: in the first step, the method further comprises a polishing process, wherein oxides and impurities on the surface of the steel plate are removed by using a polishing device, and then surface ash is removed by washing.
9. The solvent-free steel plate film coating process according to claim 1, wherein: the gluing temperature is 40-60 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110675106.1A CN113524701A (en) | 2021-06-17 | 2021-06-17 | Solvent-free steel plate film coating process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110675106.1A CN113524701A (en) | 2021-06-17 | 2021-06-17 | Solvent-free steel plate film coating process |
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| CN113524701A true CN113524701A (en) | 2021-10-22 |
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| CN202110675106.1A Pending CN113524701A (en) | 2021-06-17 | 2021-06-17 | Solvent-free steel plate film coating process |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109291420A (en) * | 2018-09-11 | 2019-02-01 | 安徽墙煌彩铝科技有限公司 | A kind of coating processes of steel plate coating technique |
| CN111216352A (en) * | 2020-01-16 | 2020-06-02 | 北京斯克兰顿建材有限公司 | Moisture-curing reaction type polyurethane hot melt adhesive steel plate film coating process |
| CN111251619A (en) * | 2020-03-06 | 2020-06-09 | 山东京宏智能科技股份有限公司 | Preparation method of color PET wire drawing film composite steel plate |
-
2021
- 2021-06-17 CN CN202110675106.1A patent/CN113524701A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109291420A (en) * | 2018-09-11 | 2019-02-01 | 安徽墙煌彩铝科技有限公司 | A kind of coating processes of steel plate coating technique |
| CN111216352A (en) * | 2020-01-16 | 2020-06-02 | 北京斯克兰顿建材有限公司 | Moisture-curing reaction type polyurethane hot melt adhesive steel plate film coating process |
| CN111251619A (en) * | 2020-03-06 | 2020-06-09 | 山东京宏智能科技股份有限公司 | Preparation method of color PET wire drawing film composite steel plate |
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Application publication date: 20211022 |
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