CN114146883A - Coating process of bright paint - Google Patents
Coating process of bright paint Download PDFInfo
- Publication number
- CN114146883A CN114146883A CN202111474634.7A CN202111474634A CN114146883A CN 114146883 A CN114146883 A CN 114146883A CN 202111474634 A CN202111474634 A CN 202111474634A CN 114146883 A CN114146883 A CN 114146883A
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- Prior art keywords
- primer
- sanding
- coating
- plate
- paint
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- 239000003973 paint Substances 0.000 title claims abstract description 99
- 238000000576 coating method Methods 0.000 title claims abstract description 61
- 238000000034 method Methods 0.000 claims abstract description 117
- 230000037452 priming Effects 0.000 claims abstract description 54
- 238000001035 drying Methods 0.000 claims abstract description 52
- 239000011248 coating agent Substances 0.000 claims abstract description 50
- 238000005498 polishing Methods 0.000 claims abstract description 40
- 238000005507 spraying Methods 0.000 claims abstract description 33
- 239000000463 material Substances 0.000 claims abstract description 30
- 239000004071 soot Substances 0.000 claims abstract description 15
- 238000007664 blowing Methods 0.000 claims abstract description 14
- 238000007761 roller coating Methods 0.000 claims abstract description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 20
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 claims description 20
- 230000001678 irradiating effect Effects 0.000 claims description 19
- 229910052753 mercury Inorganic materials 0.000 claims description 17
- 238000000227 grinding Methods 0.000 claims description 16
- 230000003068 static effect Effects 0.000 claims description 15
- 239000003085 diluting agent Substances 0.000 claims description 10
- 238000005096 rolling process Methods 0.000 claims description 8
- 244000137852 Petrea volubilis Species 0.000 claims description 7
- 238000004140 cleaning Methods 0.000 claims description 7
- 239000000123 paper Substances 0.000 claims description 7
- 229920000877 Melamine resin Polymers 0.000 claims description 5
- 239000011094 fiberboard Substances 0.000 claims description 5
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 claims description 5
- 239000004576 sand Substances 0.000 claims description 5
- 239000002987 primer (paints) Substances 0.000 abstract 4
- 239000002904 solvent Substances 0.000 description 4
- 239000004925 Acrylic resin Substances 0.000 description 3
- 229920000178 Acrylic resin Polymers 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 239000000178 monomer Substances 0.000 description 3
- 238000007517 polishing process Methods 0.000 description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000007766 curtain coating Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 241001448624 Miliaria Species 0.000 description 1
- 150000001252 acrylic acid derivatives Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005587 bubbling Effects 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000004383 yellowing Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/06—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to wood
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/36—Successively applying liquids or other fluent materials, e.g. without intermediate treatment
- B05D1/38—Successively applying liquids or other fluent materials, e.g. without intermediate treatment with intermediate treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/06—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation
- B05D3/061—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation using U.V.
- B05D3/065—After-treatment
- B05D3/067—Curing or cross-linking the coating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/12—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by mechanical means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/24—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials for applying particular liquids or other fluent materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/50—Multilayers
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention relates to a coating process of a bright paint, which is characterized by comprising the following steps: the method comprises the following steps: step 1, sanding a base material; step 2, first primer treatment; step 2 comprises three processes; a primer coating process is performed in a roller coating mode; leveling process of the primer; leveling the plate; drying and curing; step 3, coating and drying; step 3 comprises a first priming process, a plurality of groups of second priming processes and a plurality of groups of priming sanding processes in sequence; a first priming process; a second priming process; primer sanding process; step 4, sanding and polishing; step 4 comprises two processes; a surface sanding process; polishing and soot blowing; step 5, spraying finish paint; and 6, drying finish paint. The problem of carry out polishing operation relapse after spraying paint among the current scheme is solved, reduced the efficiency of spraying paint and increased the cost of spraying paint.
Description
Technical Field
The invention relates to the field of coating, in particular to a coating process of a bright paint.
Background
The paint spraying process at the present stage mainly comprises a primer spraying process and a finish spraying process, and the use requirements can be met only by performing dry sand, water grinding and polishing operations on a bright paint product. The improved process adopts a mode of coating the UV primer by spraying to replace the traditional primer, but the production cost of enterprises is still increased by coating the UV primer by spraying, the process requirement is higher, the surface of a paint film is easy to bubble, so that the coating failure is caused, the problems of high cost, easy bubbling of the paint film and the like still exist in the coating process, repeated polishing operation is required after paint spraying, the paint spraying efficiency is reduced, and the paint spraying cost is increased. How to solve this problem becomes crucial.
Disclosure of Invention
In view of the above disadvantages of the prior art, an object of the present invention is to provide a coating process for bright paint, so as to solve the problems of repeated polishing operations after paint spraying, reduced paint spraying efficiency and increased paint spraying cost in the prior art.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a coating process of bright paint;
the method comprises the following steps:
step 1, sanding a base material; sanding and polishing the base material to form a plate;
step 2, first primer treatment; step 2 comprises three processes;
firstly, roller coating priming process; rolling a first primer on the surface of the plate; the coating weight of the first primer is 15-20 g/m2；
(II) a primer leveling process; leveling the plate; the leveling time is 100-200 s; the leveling temperature is 50-60 ℃;
(III) drying and curing; irradiating the first primer by using a first ultraviolet lamp group; the energy requirement is 300 to 350mj/cm2；
Step 3, coating and drying; step 3 comprises a first priming process, a plurality of groups of second priming processes and a plurality of groups of priming sanding processes in sequence;
firstly, priming process; coating the edges of the plate by using a second primer; irradiating the second primer by using a second ultraviolet lamp group;
(II) a second priming process; coating the edges of the plate by using a third primer; irradiating the third primer by using a third ultraviolet lamp group;
(III) primer sanding process; sanding and grinding the third primer by using a sanding belt;
step 4, sanding and polishing; step 4 comprises two processes;
firstly, a surface sanding process; sanding and polishing the surface of the plate;
secondly, polishing and soot blowing; sanding and polishing the edge of the plate again by using abrasive paper; carrying out soot blowing and cleaning on the plate;
step 5, spraying finish paint; spraying finish paint on the surface of the plate; the coating weight of the finish paint is 110-120 g/m2；
Step 6, drying finish paint; placing the plate in a static drying room for drying for 24 hours; the temperature in the static drying room is 20-25 ℃; the humidity in the static drying room is 50-70%.
The further technical scheme is as follows: the base material in the step 1 is a medium-density fiberboard with the surface pressed with melamine warm white matte paper; the density of the base material is more than 0.72g/cm3。
The further technical scheme is as follows: in the step 1, sanding and polishing the base material by adopting a three-axis sanding device; the abrasive belts on the three-axis sanding equipment are 240 meshes, 320 meshes and 400 meshes in sequence.
The further technical scheme is as follows: the first primer in the step 2 is noble D-G042B transparent primer; the first set of ultraviolet lamps was crop lamps and mercury lamps.
The further technical scheme is as follows: the second primer in the step 3 is noble FZ-009P-A1; the second ultraviolet lamp group is crop lamps; the third primer is noble FZ-009P-B1; the third ultraviolet lamp group is a crop lamp and a mercury lamp; the mesh number of the abrasive belts is not less than 320 meshes.
The further technical scheme is as follows: step 4 in step 3 sequentially comprises a group of first priming paint process, a group of second priming paint process and a group of five priming paint sanding processes.
The further technical scheme is as follows: in the step 4, four-axis sanding equipment is adopted to sand and polish the plate; the abrasive belts on the four-axis sanding equipment are sequentially 180 meshes, 240 meshes, 320 meshes and 400 meshes; the mesh number of the sand paper is not less than 400 meshes.
The further technical scheme is as follows: in the step 5, the mass ratio of the finish paint is as the main agent: curing agent: diluent 1: 0.4: 0.4; the viscosity of the finish paint is 12-13 Pa.s.
The further technical scheme is as follows: the specification of the main agent is 1760; the specification of the curing agent is FTG-500; the diluent specification is 400.
Compared with the prior art, the invention has the following beneficial technical effects: (1) acrylic resin in the rare D-G042B transparent primer has excellent fullness, gloss, hardness, solvent resistance and weather resistance, does not change color or turn yellow at high temperature, and the molecular structure of an acrylate monomer in the rare D-G042B transparent primer has the characteristics of high polarity and complete saturation, so that the first primer has excellent oil resistance and high-temperature oxidation resistance; (2) the solvent volatile gas on the surface of the first primer can be volatilized within a certain time through the leveling process of the first primer, and the leveling time of the first primer is shortened through the control of the leveling temperature; (3) the crop lamp can generate a crop element lamp source, so that good penetrability can be achieved, drying and curing of the interior of the first primer can be realized, the mercury element lamp source can be generated through the mercury lamp and irradiates the surface of the first primer, the drying and curing time of the first primer is shortened, and the crop lamp and the mercury lamp irradiate simultaneously, so that the interior and the exterior of the first primer can be completely dried; (4) in the process of polishing and soot blowing, the edge of the plate is polished, and then the whole plate is subjected to soot blowing and cleaning, so that no impurities exist on the surface of the plate; (5) in the step 2, the first primer treatment adopts roller coating of the first primer, the first primer increases the adhesive force between the finish and the base material and fills pits on the surface of the base material, so that the finish is directly sprayed after the first primer is polished, polishing-free finish is realized, the primer spraying process, the drying process and the polishing process are reduced, the curtain coating process is cancelled, the paint spraying efficiency is improved, and the paint spraying cost is reduced; (6) the drying treatment is carried out after the edge is coated in the first priming paint process, the inside and the outside of the priming paint at the edge part are dried through the repeated edge coating and drying treatment, the third priming paint is polished by an abrasive belt in the priming paint polishing process for five times, and after the third priming paint is polished, the surface of the third priming paint has no bright point, no bottom penetration and even polishing.
Drawings
Figure 1 shows a process flow diagram of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the following detailed description of the present invention is provided with reference to the accompanying drawings and the detailed description. The advantages and features of the present invention will become more apparent from the following description. It is to be noted that the drawings are in a very simplified form and are all used in a non-precise scale for the purpose of facilitating and distinctly aiding in the description of the embodiments of the present invention. To make the objects, features and advantages of the present invention comprehensible, reference is made to the accompanying drawings. It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the implementation conditions of the present invention, so that the present invention has no technical significance, and any structural modification, ratio relationship change or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention.
Figure 1 shows a process flow diagram of the present invention. Referring to fig. 1, the invention discloses a coating process of a bright paint.
The coating process of the bright paint comprises the following steps:
step 1, sanding the base material. And sanding and polishing the base material to form the plate.
The base material in the step 1 is a medium-density fiberboard with the surface pressed with melamine warm white matte paper. The density of the base material is more than 0.72g/cm3。
And (3) sanding and polishing the base material by adopting a triaxial sanding device in the step 1. The abrasive belts on the three-axis sanding equipment are 240 meshes, 320 meshes and 400 meshes in sequence.
In the step 1, sanding belts with different meshes are adopted to sand and polish the base material, so that the surface of the base material has no bright spots and is uniformly sanded.
And 2, performing primary primer treatment. Step 2 comprises three processes.
And (I) rolling and coating primer. And rolling a first primer on the surface of the plate. The coating weight of the first primer is 15-20 g/m2。
And (II) a primer leveling process. And leveling the plate. The leveling time is 100-200 s. The leveling temperature is 50-60 ℃.
And (III) drying and curing. The first primer is irradiated with a first set of ultraviolet lamps. The energy requirement is 300 to 350mj/cm2。
The first primer in step 2 was a noble D-G042B clear primer. The first set of ultraviolet lamps was crop lamps and mercury lamps.
The main components of the first primer are acrylic resin and acrylate monomer. The acrylic resin in the noble D-G042B clear primer has excellent fullness, gloss, hardness, solvent resistance, weather resistance, no discoloration at high temperature, and no yellowing. The molecular structure of the acrylate monomer in the noble D-G042B transparent primer has the characteristics of high polarity and complete saturation, so that the first primer has excellent oil resistance and high-temperature oxidation resistance.
The solvent volatile gas on the surface of the first primer can be volatilized within a certain time through the leveling process of the first primer, and the leveling time of the first primer is shortened through the control of the leveling temperature.
Can produce the elemental lamp source of crops through the crops lamp, can reach fine penetrability, realize carrying out the drying solidification to first priming paint inside. The mercury lamp can generate mercury element lamp source, and the mercury element lamp source irradiates on the surface of the first primer, so that the drying and curing time of the first primer is shortened. Irradiation with a crop lamp and a mercury lamp was performed simultaneously, so that the inside and outside of the first primer could be completely dried.
The surface of the first primer is smooth and flat after the first primer treatment, and the defects of pinholes and orange peel are avoided.
And 3, coating and drying. And step 3 sequentially comprises a first priming paint process, a plurality of groups of second priming paint processes and a plurality of groups of priming paint sanding processes.
First priming process. And coating the edges of the plate by using a second primer. And irradiating the second primer by using a second ultraviolet lamp group.
(II) a second priming process. And coating the edges of the plate by using a third primer. And irradiating the third primer by using a third ultraviolet lamp group.
And (III) primer sanding process. And sanding and grinding the third primer by using a sanding belt.
The second primer in step 3 is noble FZ-009P-A1. The second ultraviolet lamp group is crop lamps. The third primer was noble FZ-009P-B1. The third ultraviolet lamp group is a crop lamp and a mercury lamp. The mesh number of the abrasive belts is not less than 320 meshes.
Step 3 in step 3 comprises a group of first priming paint process, a group of second priming paint process and a group of five priming paint sanding processes in sequence.
Spraying a second primer once in the process of the first primer, and irradiating and drying the second primer by using a crop lamp. And spraying a third primer in the second primer process, irradiating and drying the third primer by using a crop lamp and a mercury lamp, and repeatedly spraying and irradiating for three times.
And after edge coating in the first priming process, drying treatment is carried out, and the inside and the outside of the priming paint at the edge part are dried through repeated edge coating and drying treatment. And in the primer sanding process, the third primer is sanded by using the abrasive belt, the sanding is repeatedly carried out for five times, and after the third primer is sanded, the surface of the third primer has no bright spots or bottom penetration and is sanded uniformly.
And 4, sanding and polishing. Step 4 comprises two processes.
And (I) a surface sanding process. And sanding and polishing the surface of the plate.
And (II) polishing and soot blowing. And sanding and polishing the edge of the plate again by using sand paper. And carrying out soot blowing and cleaning on the plate.
And 4, sanding and polishing the plate by adopting four-axis sanding equipment. The abrasive belts on the four-axis sanding equipment are 180 meshes, 240 meshes, 320 meshes and 400 meshes in sequence. The mesh number of the sand paper is not less than 400 meshes.
In the surface sanding process, sanding and sanding are performed on the plate by using abrasive belts with different meshes, so that the third primer of the plate has no bright spot, no obvious sand mark and even sanding.
Through polishing the soot blowing in-process, polish to plate limit portion earlier, blow the soot cleaning to plate whole again for there is not impurity on plate surface.
And 5, spraying finish paint. And spraying finish paint on the surface of the plate. The coating weight of the finish paint is 110-120 g/m2。
In the step 5, the mass ratio of the finish paint is as the main agent: curing agent: diluent 1: 0.4: 0.4. the viscosity of the finish paint is 12-13 Pa.s.
The specification of the main agent is 1760. The curing agent specification is FTG-500. The diluent specification is 400.
The finish paint is a bright paint. The finish paint can be firmly attached to the plate through the matched finish paint.
And 6, drying finish paint. And (5) placing the plate in a static drying room for drying for 24 h. The temperature in the static drying room is 20-25 ℃. The humidity in the static drying room is 50-70%.
By drying the finish paint, the dried finish paint has smooth and flat surface and no drying defects of impurities, sagging, pinholes, shrinkage cavities, miliaria, orange peels and the like.
In the step 2, the first primer treatment adopts roller coating of the first primer, the first primer increases the adhesive force between the finish and the base material and fills pits on the surface of the base material, so that the finish is directly sprayed after the first primer is ground, and polishing-free finish is realized. The primer spraying process, the drying process and the polishing process are reduced, the curtain coating process is eliminated, the paint spraying efficiency is improved, and the paint spraying cost is reduced.
The spray process of the invention is illustrated below by means of two examples:
example 1:
the process for coating the glossy paint of example 1, comprising the steps of:
step 1, sanding the base material. And sanding and polishing the base material to form the plate.
The base material in the step 1 is a medium-density fiberboard with the surface pressed with melamine warm white matte paper. Substrate density 0.75g/cm3。
And (3) sanding and polishing the base material by adopting a triaxial sanding device in the step 1. The abrasive belts on the three-axis sanding equipment are 240 meshes, 320 meshes and 400 meshes in sequence.
And 2, performing primary primer treatment. Step 2 comprises three processes.
And (I) rolling and coating primer. And rolling a first primer on the surface of the plate. The coating weight of the first primer is 15g/m2。
And (II) a primer leveling process. And leveling the plate. Leveling time 100 s. The leveling temperature was 50 ℃.
And (III) drying and curing. The first primer is irradiated with a first set of ultraviolet lamps. Energy requirement 300mj/cm2。
The first primer in step 2 was a noble D-G042B clear primer. The first set of ultraviolet lamps was crop lamps and mercury lamps.
And 3, coating and drying. And step 3 sequentially comprises a first priming paint process, a plurality of groups of second priming paint processes and a plurality of groups of priming paint sanding processes.
First priming process. And coating the edges of the plate by using a second primer. And irradiating the second primer by using a second ultraviolet lamp group.
(II) a second priming process. And coating the edges of the plate by using a third primer. And irradiating the third primer by using a third ultraviolet lamp group.
And (III) a second priming process. And coating the edges of the plate by using a third primer. And irradiating the third primer by using a third ultraviolet lamp group.
And (IV) a second priming process. And coating the edges of the plate by using a third primer. And irradiating the third primer by using a third ultraviolet lamp group.
And fifthly, primer sanding process. And sanding and grinding the third primer by using a sanding belt.
And (VI) primer sanding process. And sanding and grinding the third primer by using a sanding belt.
And (VII) primer sanding process. And sanding and grinding the third primer by using a sanding belt.
(VIII) primer sanding process. And sanding and grinding the third primer by using a sanding belt.
And (ninthly) primer sanding process. And sanding and grinding the third primer by using a sanding belt.
The second primer in step 3 was a noble MZ-009L-D (A) white primer. The second ultraviolet lamp group is a crop lamp and a mercury lamp.
The second primer in step 3 is noble FZ-009P-A1. The second ultraviolet lamp group is crop lamps. The third primer was noble FZ-009P-B1. The third ultraviolet lamp group is a crop lamp and a mercury lamp. The mesh number of the abrasive belts is 320 meshes.
And 4, sanding and polishing. Step 4 comprises two processes.
And (I) a surface sanding process. And sanding and polishing the surface of the plate.
And (II) polishing and soot blowing. And sanding and grinding the surface of the plate again by using sand paper. And carrying out soot blowing and cleaning on the plate.
And 4, sanding and polishing the plate by adopting four-axis sanding equipment. The abrasive belts on the four-axis sanding equipment are 180 meshes, 240 meshes, 320 meshes and 400 meshes in sequence. The mesh number of the sandpaper is 400 meshes.
And 5, spraying finish paint. And spraying finish paint on the surface of the plate. The coating weight of the finishing coat is 110g/m2。
In the step 5, the mass ratio of the finish paint is as the main agent: curing agent: diluent 1: 0.4: 0.4. the viscosity of the finish paint is 12 Pa.s.
The specification of the main agent is 1760. The curing agent specification is FTG-500. The diluent specification is 400.
And 6, drying finish paint. And (5) placing the plate in a static drying room for drying for 24 h. The temperature in the static drying room is 20 ℃. The humidity in the static drying room is 50%.
Example 2:
the process for coating the glossy paint of example 2, comprising the steps of:
step 1, sanding the base material. And sanding and polishing the base material to form the plate.
The base material in the step 1 is a medium-density fiberboard with the surface pressed with melamine warm white matte paper. Substrate density 0.79g/cm3。
And (3) sanding and polishing the base material by adopting a triaxial sanding device in the step 1. The abrasive belts on the three-axis sanding equipment are 240 meshes, 320 meshes and 400 meshes in sequence.
And 2, performing primary primer treatment. Step 2 comprises three processes.
And (I) rolling and coating primer. And rolling a first primer on the surface of the plate. The coating weight of the first primer is 20g/m2。
And (II) a primer leveling process. And leveling the plate. Leveling time 200 s. The leveling temperature was 60 ℃.
And (III) drying and curing. The first primer is irradiated with a first set of ultraviolet lamps. Energy requirement of 350mj/cm2。
The first primer in step 2 was a noble D-G042B clear primer. The first set of ultraviolet lamps was crop lamps and mercury lamps.
And 3, coating and drying. And step 3 sequentially comprises a first priming paint process, a plurality of groups of second priming paint processes and a plurality of groups of priming paint sanding processes.
First priming process. And coating the edges of the plate by using a second primer. And irradiating the second primer by using a second ultraviolet lamp group.
(II) a second priming process. And coating the edges of the plate by using a third primer. And irradiating the third primer by using a third ultraviolet lamp group.
And (III) a second priming process. And coating the edges of the plate by using a third primer. And irradiating the third primer by using a third ultraviolet lamp group.
And (IV) a second priming process. And coating the edges of the plate by using a third primer. And irradiating the third primer by using a third ultraviolet lamp group.
And fifthly, primer sanding process. And sanding and grinding the third primer by using a sanding belt.
And (VI) primer sanding process. And sanding and grinding the third primer by using a sanding belt.
And (VII) primer sanding process. And sanding and grinding the third primer by using a sanding belt.
(VIII) primer sanding process. And sanding and grinding the third primer by using a sanding belt.
And (ninthly) primer sanding process. And sanding and grinding the third primer by using a sanding belt.
The second primer in step 3 was a noble MZ-009L-D (A) white primer. The second ultraviolet lamp group is a crop lamp and a mercury lamp.
The second primer in step 3 is noble FZ-009P-A1. The second ultraviolet lamp group is crop lamps. The third primer was noble FZ-009P-B1. The third ultraviolet lamp group is a crop lamp and a mercury lamp. The mesh number of the abrasive belts is 360 meshes.
And 4, sanding and polishing. Step 4 comprises two processes.
And (I) a surface sanding process. And sanding and polishing the surface of the plate.
And (II) polishing and soot blowing. And sanding and grinding the surface of the plate again by using sand paper. And carrying out soot blowing and cleaning on the plate.
And 4, sanding and polishing the plate by adopting four-axis sanding equipment. The abrasive belts on the four-axis sanding equipment are 180 meshes, 240 meshes, 320 meshes and 400 meshes in sequence. The mesh number of the sand paper is 500 meshes.
And 5, spraying finish paint. And spraying finish paint on the surface of the plate. Coating weight of finish paint is 120g/m2。
In the step 5, the mass ratio of the finish paint is as the main agent: curing agent: diluent 1: 0.4: 0.4. the viscosity of the finish paint is 13 Pa.s.
The specification of the main agent is 1760. The curing agent specification is FTG-500. The diluent specification is 400.
And 6, drying finish paint. And (5) placing the plate in a static drying room for drying for 24 h. The temperature in the static drying room is 25 ℃. The humidity in the static drying room is 70%.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (9)
1. A coating process of a bright paint is characterized by comprising the following steps:
step 1, sanding a base material; sanding and polishing the base material to form a plate;
step 2, first primer treatment; step 2 comprises three processes;
firstly, roller coating priming process; rolling a first primer on the surface of the plate; the coating weight of the first primer is 15-20 g/m2；
(II) a primer leveling process; leveling the plate; the leveling time is 100-200 s; the leveling temperature is 50-60 ℃;
(III) drying and curing; irradiating the first primer by using a first ultraviolet lamp group; the energy requirement is 300 to 350mj/cm2；
Step 3, coating and drying; step 3 comprises a first priming process, a plurality of groups of second priming processes and a plurality of groups of priming sanding processes in sequence;
firstly, priming process; coating the edges of the plate by using a second primer; irradiating the second primer by using a second ultraviolet lamp group;
(II) a second priming process; coating the edges of the plate by using a third primer; irradiating the third primer by using a third ultraviolet lamp group;
(III) primer sanding process; sanding and grinding the third primer by using a sanding belt;
step 4, sanding and polishing; step 4 comprises two processes;
firstly, a surface sanding process; sanding and polishing the surface of the plate;
secondly, polishing and soot blowing; sanding and polishing the edge of the plate again by using abrasive paper; carrying out soot blowing and cleaning on the plate;
step 5, finish paint sprayingProcessing; spraying finish paint on the surface of the plate; the coating weight of the finish paint is 110-120 g/m2；
Step 6, drying finish paint; placing the plate in a static drying room for drying for 24 hours; the temperature in the static drying room is 20-25 ℃; the humidity in the static drying room is 50-70%.
2. The process for coating a glossy paint according to claim 1, wherein: the base material in the step 1 is a medium-density fiberboard with the surface pressed with melamine warm white matte paper; the density of the base material is more than 0.72g/cm3。
3. The process for coating a glossy paint according to claim 1, wherein: in the step 1, sanding and polishing the base material by adopting a three-axis sanding device; the abrasive belts on the three-axis sanding equipment are 240 meshes, 320 meshes and 400 meshes in sequence.
4. The process for coating a glossy paint according to claim 1, wherein: the first primer in the step 2 is noble D-G042B transparent primer; the first set of ultraviolet lamps was crop lamps and mercury lamps.
5. The process for coating a glossy paint according to claim 1, wherein: the second primer in the step 3 is noble FZ-009P-A1; the second ultraviolet lamp group is crop lamps; the third primer is noble FZ-009P-B1; the third ultraviolet lamp group is a crop lamp and a mercury lamp; the mesh number of the abrasive belts is not less than 320 meshes.
6. The process for coating a glossy paint according to claim 1, wherein: step 4 in step 3 sequentially comprises a group of first priming paint process, a group of second priming paint process and a group of five priming paint sanding processes.
7. The process for coating a glossy paint according to claim 1, wherein: in the step 4, four-axis sanding equipment is adopted to sand and polish the plate; the abrasive belts on the four-axis sanding equipment are sequentially 180 meshes, 240 meshes, 320 meshes and 400 meshes; the mesh number of the sand paper is not less than 400 meshes.
8. The process for coating a glossy paint according to claim 1, wherein: in the step 5, the mass ratio of the finish paint is as the main agent: curing agent: diluent 1: 0.4: 0.4; the viscosity of the finish paint is 12-13 Pa.s.
9. The process for coating a glossy paint according to claim 8, wherein: the specification of the main agent is 1760; the specification of the curing agent is FTG-500; the diluent specification is 400.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114653561A (en) * | 2022-03-23 | 2022-06-24 | 江苏无锡欧派集成家居有限公司 | Powder coating method for wood base material |
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Application publication date: 20220308 |