CN115946255A - PVC wood-wrapping process - Google Patents
PVC wood-wrapping process Download PDFInfo
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- CN115946255A CN115946255A CN202211698162.8A CN202211698162A CN115946255A CN 115946255 A CN115946255 A CN 115946255A CN 202211698162 A CN202211698162 A CN 202211698162A CN 115946255 A CN115946255 A CN 115946255A
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- 238000000034 method Methods 0.000 title claims abstract description 26
- 230000008569 process Effects 0.000 title claims abstract description 23
- 239000000843 powder Substances 0.000 claims abstract description 53
- 239000002245 particle Substances 0.000 claims abstract description 52
- 238000001816 cooling Methods 0.000 claims abstract description 32
- 239000000203 mixture Substances 0.000 claims abstract description 27
- 238000001125 extrusion Methods 0.000 claims abstract description 23
- 238000010438 heat treatment Methods 0.000 claims abstract description 21
- 239000011248 coating agent Substances 0.000 claims abstract description 15
- 238000000576 coating method Methods 0.000 claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 238000005520 cutting process Methods 0.000 claims abstract description 11
- 229920001971 elastomer Polymers 0.000 claims abstract description 11
- 238000005469 granulation Methods 0.000 claims abstract description 11
- 230000003179 granulation Effects 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 claims abstract description 11
- 239000002023 wood Substances 0.000 claims abstract description 9
- 239000012752 auxiliary agent Substances 0.000 claims description 20
- 239000004088 foaming agent Substances 0.000 claims description 20
- 239000003381 stabilizer Substances 0.000 claims description 20
- 150000001875 compounds Chemical class 0.000 claims description 5
- 229920001342 Bakelite® Polymers 0.000 claims 2
- 239000004637 bakelite Substances 0.000 claims 2
- 230000008901 benefit Effects 0.000 abstract description 6
- 241000238631 Hexapoda Species 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 239000002184 metal Substances 0.000 abstract description 2
- 230000009467 reduction Effects 0.000 abstract description 2
- 238000002844 melting Methods 0.000 abstract 1
- 230000008018 melting Effects 0.000 abstract 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 100
- 239000004800 polyvinyl chloride Substances 0.000 description 100
- 230000003993 interaction Effects 0.000 description 9
- 238000009423 ventilation Methods 0.000 description 6
- 239000003973 paint Substances 0.000 description 4
- 238000003825 pressing Methods 0.000 description 4
- 238000005034 decoration Methods 0.000 description 3
- 239000000835 fiber Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000005445 natural material Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Landscapes
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention provides a PVC wood-wrapping process, which comprises the following steps: step 1, putting the PVC mixture into a high-speed mixer, and cooling the mixture by a rubber powder cooler to obtain powder; step 2, adding the powder into a granulator for granulation to prepare PVC particles with uniform particle size; step 3, heating the section to be coated in an extruder at a constant speed, melting PVC particles, and extruding the section to form the section with the PVC material coating attached to the surface of the section by a co-extrusion die; and 4, cooling by a water mold, forming, drawing and cutting. The PVC coating is attached to the outer surface of the pure wood or the wood-like profile, so that the PVC wood-wrapping process has the characteristics of smooth and fine surface, water resistance, moisture resistance, no mildew, no insect and the like in the prior art, and also has the advantages of difficult deformation (tough hardness, no need of adding metal to improve the hardness), environmental protection, cost reduction, simple process steps and the like.
Description
Technical Field
The invention belongs to the technical field of new material processing; in particular to a PVC wood-wrapping process.
Background
In the processing process of the pure wood section or the wood-like section, paint is coated on the outer surface of the product in order to adapt to the conditions of attractive appearance, water resistance, weather resistance improvement and the like.
The ventilation window is a common decoration matching material, and the modern decoration concept puts higher requirements on the functions and the materials of the ventilation window. According to the different positions of transom by the installation, different height, under different width and the different climatic conditions, need more firm auxiliary material rather than the structural cooperation, and then reach the combination of transom firmer, environmental protection, with low costs, the strong and outward appearance advantage such as pleasing to the eye of controllability.
No matter the transom of PVC material or the wood transom of natural material all has following not enough: the ventilation window made of the PVC material is lack of natural fibers inside, so that the ventilation window is easy to deform and droop when meeting a climate with a large temperature difference. The natural material wood ventilation window is too big because of the capillary hole on surface, so after spraying paint on the surface, lead to the surface still comparatively more crude, feel and visual sense all not too good. Aiming at the improvement of the appreciation level of the current consumers and the severe trend of the requirements on products, the demand for the environment-friendly glass has the advantages of smooth and fine surface, water resistance, moisture resistance, no mildew, no insect growth and the like; but also has the advantages of natural fiber support inside the wood material, better weather resistance, beautiful appearance and the like. The outer coating auxiliary layer of the existing ventilation window has harm to the body of workers in the production process, and the finished product has great influence on the environment. In view of the above-mentioned deficiencies of the prior art, a need exists for a process for replacing a paint layer.
Disclosure of Invention
The invention aims to provide a PVC wood-wrapping process.
The invention is realized by the following technical scheme:
the invention relates to a PVC wood-covering process, which comprises the following steps:
step 1, putting the PVC mixture into a high-speed mixer, and cooling the mixture by a rubber powder cooler to obtain powder;
step 2, adding the powder into a granulator for granulation to prepare PVC particles with uniform particle size;
step 3, heating the section to be coated in an extruder at a constant speed, adding PVC particles, and performing co-extrusion die extrusion to form the section with the PVC material coating attached to the surface of the section; the method comprises the following specific steps:
PVC particles are heated in sections of an extruder (the temperature of the four sections of the extruder is specifically 130 ℃ plus or minus 10 ℃ in the first section, 145 ℃ plus or minus 10 ℃ in the second section, 165 ℃ plus or minus 10 ℃ in the third section and 190 ℃ plus or minus 10 ℃ in the fourth section), the PVC particles are extruded into a co-extrusion die at uniform speed under the interaction of a screw and a screw sleeve, and the PVC particles and a section to be coated are extruded together at uniform speed in the co-extrusion die (the temperature of the three sections of the section at the stage is specifically 190 ℃ plus or minus 10 ℃ in the first section, 190 ℃ plus or minus 10 ℃ in the second section and 200 ℃ plus or minus 10 ℃ in the third section), namely the surface of the section to be coated is coated with a 360-degree dead angle-free layer and an adhesion layer with extremely high finish.
And 4, cooling by a water mold, forming, drawing and cutting.
Preferably, in step 1, the PVC compound comprises: PVC powder, caCO 3 Foaming agent, stabilizer, toner and auxiliary agent; wherein, PVC powder and CaCO 3 The mass ratio of the foaming agent to the stabilizer to the toner to the auxiliary agent is 7.7.
Preferably, in step 3, the heating temperature is 120 ℃ to 210 ℃.
Preferably, in step 4, the temperature of the cooling is 0 ℃ to 16 ℃.
The invention has the following advantages: the PVC coating is attached to the outer surface of the pure wood or wood-like profile, so that the PVC wood-wrapping process has the characteristics of smooth and fine surface, water resistance, moisture resistance, no mildew, no insect and the like in the prior art, and the profile has the advantages of difficult deformation (tough hardness, no need of adding metal to improve the hardness), environmental friendliness, cost reduction, simple process steps and the like.
Detailed Description
The present invention will be described in detail with reference to specific examples. It should be noted that the following examples are only illustrative of the present invention, but the scope of the present invention is not limited to the following examples.
Example 1
The embodiment relates to a process for wrapping an L-shaped frame by PVC, which comprises the following steps:
step 1, putting a PVC mixture into a high-speed mixer, and cooling the PVC mixture by a rubber powder cooler to obtain powder;
step 2, adding the powder into a granulator for granulation to prepare PVC particles with uniform particle size;
step 3, heating PVC particles in sections of an extruder, extruding the PVC particles into a co-extrusion die at uniform speed under the interaction of a screw and a screw sleeve, and extruding the PVC particles and an L-shaped frame to be coated in the co-extrusion die at uniform speed, namely coating the surface of the L-shaped frame to be coated with an adhesion layer with extremely high finish and 360-degree dead angle;
and 4, cooling by a water mold, forming, drawing and cutting.
Further, in step 1, the PVC compound comprises: PVC powder, caCO 3 Foaming agent, stabilizer, toner and auxiliary agent; wherein, PVC powder and CaCO 3 The mass ratio of the foaming agent to the stabilizer to the toner to the auxiliary agent is (7.7).
Further, in the step 3, the heating temperature is 120-210 ℃;
further, in step 4, the cooling temperature is 0 ℃ to 16 ℃.
Example 2
The embodiment relates to a Z-shaped frame process for PVC (polyvinyl chloride) bags, which comprises the following steps of:
step 1, putting a PVC mixture into a high-speed mixer, and cooling the PVC mixture by a rubber powder cooler to obtain powder;
step 2, adding the powder into a granulator for granulation to prepare PVC particles with uniform particle size;
and 3, heating the PVC particles in sections of an extruder, extruding the PVC particles into a co-extrusion pressing die at a uniform speed under the interaction of a screw and a screw sleeve, and extruding the PVC particles and the Z-shaped frame to be coated in the co-extrusion pressing die at a uniform speed, namely coating the surface of the Z-shaped frame to be coated with a 360-degree dead angle-free adhesion layer with extremely high finish.
And 4, cooling by a water mold, forming, drawing and cutting.
Further, in step 1, the PVC mixture comprises: PVC powder, caCO 3 Foaming agent, stabilizer, toner and auxiliary agent; wherein, PVC powder and CaCO 3 The mass ratio of the foaming agent to the stabilizer to the toner to the auxiliary agent is 7.7.
Further, in the step 3, the heating temperature is 120-210 ℃.
Further, in step 4, the cooling temperature is 0 ℃ to 16 ℃.
Example 3
The embodiment relates to a right frame process for PVC wrapping tape edges, which comprises the following steps:
step 1, putting a PVC mixture into a high-speed mixer, and cooling the PVC mixture by a rubber powder cooler to obtain powder;
step 2, adding the powder into a granulator for granulation to prepare PVC particles with uniform particle size;
and 3, heating the PVC particles in sections of the extruder, extruding the PVC particles into a co-extrusion pressing die at uniform speed under the interaction of a screw and a screw sleeve, and extruding the PVC particles and the right frame with the edge to be coated in the co-extrusion pressing die at uniform speed, namely coating the surface of the right frame with the edge to be coated with a 360-degree dead angle and a layer of adhesion layer with extremely high finish.
And 4, cooling by a water mold, forming, drawing and cutting.
Further, in step 1, the PVC compound comprises: PVC powder, caCO 3 Foaming agent, stabilizer, toner and auxiliary agent; wherein, PVC powder and CaCO 3 The mass ratio of the foaming agent to the stabilizer to the toner to the auxiliary agent is 7.7.
Further, in the step 3, the heating temperature is 120-210 ℃.
Further, in step 4, the cooling temperature is 0-16 ℃.
Example 4
The embodiment relates to a PVC (polyvinyl chloride) bag upper frame process, which comprises the following steps:
step 1, putting a PVC mixture into a high-speed mixer, and cooling the PVC mixture by a rubber powder cooler to obtain powder;
step 2, adding the powder into a granulator for granulation to prepare PVC particles with uniform particle size;
and 3, heating the PVC particles in sections of the extruder, extruding the PVC particles into a co-extrusion die at uniform speed under the interaction of a screw and a screw sleeve, and extruding the PVC particles and the upper frame to be coated in the co-extrusion die at uniform speed, namely coating the surface of the upper frame to be coated with a 360-degree dead angle-free adhesion layer with extremely high finish.
And 4, cooling by a water mold, forming, drawing and cutting.
Further, in step 1, the PVC mixture comprises: PVC powder, caCO 3 Foaming agent, stabilizer, colorPowder and an auxiliary agent; wherein, PVC powder and CaCO 3 The mass ratio of the foaming agent to the stabilizer to the toner to the auxiliary agent is 7.7.
Further, in the step 3, the heating temperature is 120-210 ℃.
Further, in step 4, the cooling temperature is 0 ℃ to 16 ℃.
Example 5
The embodiment relates to a PVC (polyvinyl chloride) bag lower frame process, which comprises the following steps:
step 1, putting the PVC mixture into a high-speed mixer, and cooling the mixture by a rubber powder cooler to obtain powder;
step 2, adding the powder into a granulator for granulation to prepare PVC particles with uniform particle size;
and 3, heating the PVC particles in sections of an extruder, extruding the PVC particles into a co-extrusion die at a uniform speed under the interaction of a screw and a screw sleeve, and extruding the PVC particles and a lower frame to be coated in the co-extrusion die at a uniform speed, namely coating the surface of the lower frame to be coated with a 360-degree dead angle-free adhesion layer with extremely high finish.
And 4, cooling by a water mold, forming, drawing and cutting.
Further, in step 1, the PVC compound comprises: PVC powder, caCO 3 Foaming agent, stabilizer, toner and auxiliary agent; wherein, PVC powder and CaCO 3 The mass ratio of the foaming agent to the stabilizer to the toner to the auxiliary agent is (7.7).
Further, in the step 3, the heating temperature is 120-210 ℃.
Further, in step 4, the cooling temperature is 0-16 ℃.
Example 6
The embodiment relates to a PVC leaf wrapping process, which comprises the following steps:
step 1, putting the PVC mixture into a high-speed mixer, and cooling the mixture by a rubber powder cooler to obtain powder;
step 2, adding the powder into a granulator for granulation to prepare PVC particles with uniform particle size;
and 3, heating the PVC particles in sections of the extruder, extruding the PVC particles into a co-extrusion die at uniform speed under the interaction of a screw and a screw sleeve, and extruding the PVC particles and the blade to be coated in the co-extrusion die at uniform speed, namely coating the surface of the blade to be coated with a 360-degree dead angle-free adhesion layer with extremely high finish.
And 4, cooling by a water mold, forming, drawing and cutting.
Further, in step 1, the PVC mixture comprises: PVC powder, caCO 3 Foaming agent, stabilizer, toner and auxiliary agent; wherein, PVC powder and CaCO 3 The mass ratio of the foaming agent to the stabilizer to the toner to the auxiliary agent is 7.7.
Further, in the step 3, the heating temperature is 120-210 ℃.
Further, in step 4, the cooling temperature is 0-16 ℃.
Example 7
The embodiment relates to a PVC right frame wrapping process, which comprises the following steps:
step 1, putting the PVC mixture into a high-speed mixer, and cooling the mixture by a rubber powder cooler to obtain powder;
step 2, adding the powder into a granulator for granulation to prepare PVC particles with uniform particle size;
and 3, heating the PVC particles in sections of the extruder, extruding the PVC particles into a co-extrusion die at uniform speed under the interaction of a screw and a screw sleeve, and extruding the PVC particles and the right frame to be coated in the co-extrusion die at uniform speed, namely coating the surface of the right frame to be coated with a 360-degree dead angle-free adhesion layer with extremely high finish.
And 4, cooling by a water mold, forming, drawing and cutting.
Further, in step 1, the PVC mixture comprises: PVC powder, caCO 3 Foaming agent, stabilizer, toner and auxiliary agent; wherein, PVC powder and CaCO 3 The mass ratio of the foaming agent to the stabilizer to the toner to the auxiliary agent is (7.7).
Further, in the step 3, the heating temperature is 120-210 ℃.
Further, in step 4, the cooling temperature is 0 ℃ to 16 ℃.
Example 8
The embodiment relates to a PVC (polyvinyl chloride) bag left frame process, which comprises the following steps of:
step 1, putting the PVC mixture into a high-speed mixer, and cooling the mixture by a rubber powder cooler to obtain powder;
step 2, adding the powder into a granulator for granulation to prepare PVC particles with uniform particle size;
and 3, heating the PVC particles in sections of the extruder, extruding the PVC particles into a co-extrusion die at uniform speed under the interaction of a screw and a screw sleeve, and extruding the PVC particles and the left frame to be coated in the co-extrusion die at uniform speed, namely coating the surface of the left frame to be coated with a 360-degree dead angle-free adhesion layer with extremely high finish.
And 4, cooling by a water mold, forming, drawing and cutting.
Further, in step 1, the PVC mixture comprises: PVC powder, caCO 3 Foaming agent, stabilizer, toner and auxiliary agent; wherein, PVC powder and CaCO 3 The mass ratio of the foaming agent to the stabilizer to the toner to the auxiliary agent is 7.7.
Further, in the step 3, the heating temperature is 120-210 ℃.
Further, in step 4, the cooling temperature is 0-16 ℃.
The PVC-coated profile according to the present embodiment is not limited to the above: the decoration components comprise an L-shaped frame, a Z-shaped frame, a right frame with a side, an upper frame, a lower frame, blades, a right frame, a left frame and the like, and further comprise section bars made of different materials such as pure wood, wood plastic and the like.
The profile coated with the PVC coating prepared by the process of the invention, examples 1-8, and the product coated with the outer layer of paint, were compared by performance tests, as shown in Table 1.
TABLE 1
The foregoing description has described specific embodiments of the present invention. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention.
Claims (4)
1. The PVC wood-covering process is characterized by comprising the following steps:
step 1, putting the PVC mixture into a high-speed mixer, and cooling the mixture by a rubber powder cooler to obtain powder;
step 2, adding the powder into a granulator for granulation to prepare PVC particles with uniform particle size;
step 3, heating the section bar to be coated in an extruder at a constant speed, adding PVC particles, and performing co-extrusion die extrusion to form the section bar with the PVC material coating attached to the surface of the section bar;
and 4, cooling by a water mold, forming, drawing and cutting.
2. The PVC-clad wood process according to claim 1, wherein in step 1, the PVC compound comprises: PVC powder, caCO 3 Foaming agent, stabilizer, toner and auxiliary agent; wherein, PVC powder and CaCO 3 The mass ratio of the foaming agent to the stabilizer to the toner to the auxiliary agent is (7.7).
3. The PVC Bakelite process of claim 1, wherein in step 3, the temperature of the heating is 120 ℃ to 210 ℃.
4. The PVC Bakelite Process according to claim 1, wherein in step 4, the temperature of cooling is between 0 ℃ and 16 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211698162.8A CN115946255A (en) | 2022-12-28 | 2022-12-28 | PVC wood-wrapping process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211698162.8A CN115946255A (en) | 2022-12-28 | 2022-12-28 | PVC wood-wrapping process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115946255A true CN115946255A (en) | 2023-04-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211698162.8A Pending CN115946255A (en) | 2022-12-28 | 2022-12-28 | PVC wood-wrapping process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115946255A (en) |
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2022
- 2022-12-28 CN CN202211698162.8A patent/CN115946255A/en active Pending
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