CN105383031A - Powder coating production technology - Google Patents
Powder coating production technology Download PDFInfo
- Publication number
- CN105383031A CN105383031A CN201510985529.8A CN201510985529A CN105383031A CN 105383031 A CN105383031 A CN 105383031A CN 201510985529 A CN201510985529 A CN 201510985529A CN 105383031 A CN105383031 A CN 105383031A
- Authority
- CN
- China
- Prior art keywords
- powdery paints
- production technology
- crushing
- thermal treatment
- treatment zone
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000000843 powder Substances 0.000 title claims abstract description 45
- 238000005516 engineering process Methods 0.000 title claims abstract description 23
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 22
- 238000000576 coating method Methods 0.000 title abstract description 12
- 239000011248 coating agent Substances 0.000 title abstract description 11
- 238000002156 mixing Methods 0.000 claims abstract description 30
- 238000002844 melting Methods 0.000 claims abstract description 23
- 230000008018 melting Effects 0.000 claims abstract description 23
- 238000001816 cooling Methods 0.000 claims abstract description 11
- 238000012216 screening Methods 0.000 claims abstract description 7
- 238000001125 extrusion Methods 0.000 claims abstract description 5
- 238000000926 separation method Methods 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims description 66
- 239000003973 paint Substances 0.000 claims description 33
- 238000007669 thermal treatment Methods 0.000 claims description 32
- 238000000034 method Methods 0.000 claims description 13
- 239000011347 resin Substances 0.000 claims description 12
- 229920005989 resin Polymers 0.000 claims description 12
- 239000012752 auxiliary agent Substances 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 7
- 239000008187 granular material Substances 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- 239000000428 dust Substances 0.000 claims description 4
- 239000002245 particle Substances 0.000 abstract description 4
- 239000000945 filler Substances 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010285 flame spraying Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/04—Particle-shaped
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/911—Cooling
- B29C48/9135—Cooling of flat articles, e.g. using specially adapted supporting means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C21/00—Disintegrating plant with or without drying of the material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C4/00—Crushing or disintegrating by roller mills
- B02C4/28—Details
- B02C4/30—Shape or construction of rollers
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/03—Powdery paints
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Food Science & Technology (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Paints Or Removers (AREA)
Abstract
The invention relates to a powder coating production technology, and belongs to the technical field of powder coatings. The powder coating production technology comprises the following steps of mixing, melting extrusion, preforming and cooling, coarse crushing, fine crushing, ultra-fine powder separation and screening. A powder coating produced through the powder coating production technology is homogeneous in distribution and uniform in particle size.
Description
Technical field
The present invention relates to powder coating technology field, be specifically related to a kind of powdery paints production technology.
Background technology
Powdery paints originates in the later stage thirties 20th century, and blank the earliest utilizes flame spraying to be sprayed on metal surface with molten condition by polyethylene powders.
The powder of powdery paints obtains after being pulverized by each filler mixed melting, and the mixing of each filler is uneven, go through the coating performance skewness that heterogeneity makes coating be formed, and easy to crack.
Summary of the invention
Object of the present invention is to solve the problem, and provides a kind of and makes that coating itself is uniformly dispersed, the powdery paints production technology of uniform particle diameter.
The technical scheme that the present invention solves the problem is as follows:
A kind of powdery paints production technology, comprises the steps:
1. mix: resin is divided proportional two parts for 4/5-6/5, by in mixer that wherein a part joins with crushing function, open hybrid switch and stir 300-500s, after unlatching hybrid switch 30-60s, open broken switch carry out break process, add other auxiliary agents of powdery paints after the start of mixing, add another part resin after mixing 20-100s, mixing closes broken switch while terminating, and forms mixed material;
The time of mixing is too short, mixes uneven; The time of mixing is oversize, and mixer heating easily makes material itself lump; Mixing a period of time after carry out the particle diameter that crushing energy enough reduces material, material is more easily disperseed, mixing evenly.
2. melt extrude: the complete material of mixing is joined in melting plant, first thermal treatment zone and second thermal treatment zone is comprised by melting plant described in material addition sequence, the temperature of described first thermal treatment zone is 80-125 DEG C, first thermal treatment zone height 2-10 DEG C described in the ratio of described second thermal treatment zone, the material after melting through extrusion device in the form of sheets machine go out;
The effect of preheating is also played in first thermal treatment zone except melting, and material can present ideal molten condition behind second thermal treatment zone;
3. compressing tablet cooling: extrude rear material on chip and be transported to coarse crushing device place with transport tape, transport tape place is provided with cooling device;
4. coarse crushing: cooled sheet material, through breaker roll coarse crushing, is placed in moveable hopper;
5. fine powder is broken: the material after coarse crushing is delivered in grinder that to carry out fine powder broken by described moveable hopper;
6. superfine powder is separated: superfine powder is separated by smart crushing rear material after powder separation device, then through dust arrester dedusting;
7. sieve: isolate the material of superfine powder again through screening, sieve removes undesirable coarse granule, namely obtains powdery paints finished product.
Preferred as technique scheme, the pressure roller group that described step extrusion device 2. forms for two pressure rollers be disposed adjacent, the gap of material in the middle of described pressure roller group is extruded in the form of sheets.
Preferred as technique scheme, described step 2. in melting plant before be provided with screw feeder.
Preferred as technique scheme, described step 3. described in cooling device be arranged on the air-cooled unit above described conveyer belt.
Preferred as technique scheme, described step 4. in breaker roll on be provided with crushing teeth, crushing teeth rolls sheet material makes it broken.
Preferred as technique scheme, described step 6. in powder separation device be cyclone separator.
Preferred as technique scheme, described step 6. in dust arrester be sack cleaner.
In sum, the present invention has following beneficial effect:
1. a kind of powdery paints production technology of the present invention makes the filler of powdery paints and each auxiliary agent mix;
2. the powder coating particles produced of a kind of powdery paints production technology of the present invention is homogeneous, and the coating of formation is not easy to crack.
Accompanying drawing explanation
Fig. 1 is a kind of powdery paints production technological process.
Detailed description of the invention
Be clearly and completely described to the technical scheme in the embodiment of the present invention below, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Embodiment in the present invention, those of ordinary skill in the art, not doing other embodiments all obtained under creative work prerequisite, belong to the scope of protection of the invention.
Below in conjunction with accompanying drawing, with embodiment, the present invention is described in detail.
Embodiment 1: a kind of powdery paints production technology, comprises the steps:
1. mix: resin is divided proportional be 4/5 two parts, by in mixer that wherein a part joins with crushing function, open hybrid switch and stir 300s, after unlatching hybrid switch 30s, open broken switch carry out break process, add other auxiliary agents of powdery paints after the start of mixing, add another part resin after mixing 20s, mixing closes broken switch while terminating, and forms mixed material;
2. melt extrude: the complete material of mixing is joined in melting plant by screw feeder, first thermal treatment zone and second thermal treatment zone is comprised by melting plant described in material addition sequence, the temperature of described first thermal treatment zone is 80 DEG C, described in the ratio of described second thermal treatment zone, first thermal treatment zone is high 10 DEG C, the material after melting through pressure roller group in the form of sheets machine go out;
3. compressing tablet cooling: extrude rear material on chip and be transported to coarse crushing device place with transport tape, transport tape place is provided with air-cooled unit and cools sheet material;
4. coarse crushing: the crushing teeth coarse crushing of cooled sheet material on breaker roll, is placed in moveable hopper;
5. fine powder is broken: the material after coarse crushing is delivered in grinder that to carry out fine powder broken by described moveable hopper;
6. superfine powder is separated: superfine powder is separated by smart crushing rear material after cyclone separator, then through sack cleaner dedusting;
7. sieve: isolate the material of superfine powder again through screening, sieve removes undesirable coarse granule, namely obtains powdery paints finished product.
Embodiment 2: a kind of powdery paints production technology, comprises the steps:
1. mix: resin is divided proportional be 6/5 two parts, by in mixer that wherein a part joins with crushing function, open hybrid switch and stir 500s, after unlatching hybrid switch 60s, open broken switch carry out break process, add other auxiliary agents of powdery paints after the start of mixing, add another part resin after mixing 100s, mixing closes broken switch while terminating, and forms mixed material;
2. melt extrude: the complete material of mixing is joined in melting plant by screw feeder, first thermal treatment zone and second thermal treatment zone is comprised by melting plant described in material addition sequence, the temperature of described first thermal treatment zone is 125 DEG C, described in the ratio of described second thermal treatment zone, first thermal treatment zone is high 5 DEG C, the material after melting through pressure roller group in the form of sheets machine go out;
3. compressing tablet cooling: extrude rear material on chip and be transported to coarse crushing device place with transport tape, transport tape place is provided with air-cooled unit and cools sheet material;
4. coarse crushing: the crushing teeth coarse crushing of cooled sheet material on breaker roll, is placed in moveable hopper;
5. fine powder is broken: the material after coarse crushing is delivered in grinder that to carry out fine powder broken by described moveable hopper;
6. superfine powder is separated: superfine powder is separated by smart crushing rear material after cyclone separator, then through sack cleaner dedusting;
7. sieve: isolate the material of superfine powder again through screening, sieve removes undesirable coarse granule, namely obtains powdery paints finished product.
Embodiment 3: a kind of powdery paints production technology, comprises the steps:
1. mix: resin is divided proportional two parts for 1:1, by in mixer that wherein a part joins with crushing function, open hybrid switch and stir 350s, after unlatching hybrid switch 45s, open broken switch carry out break process, add other auxiliary agents of powdery paints after the start of mixing, add another part resin after mixing 30s, mixing closes broken switch while terminating, and forms mixed material;
2. melt extrude: the complete material of mixing is joined in melting plant by screw feeder, first thermal treatment zone and second thermal treatment zone is comprised by melting plant described in material addition sequence, the temperature of described first thermal treatment zone is 105 DEG C, described in the ratio of described second thermal treatment zone, first thermal treatment zone is high 2 DEG C, the material after melting through pressure roller group in the form of sheets machine go out;
3. compressing tablet cooling: extrude rear material on chip and be transported to coarse crushing device place with transport tape, transport tape place is provided with air-cooled unit and cools sheet material;
4. coarse crushing: the crushing teeth coarse crushing of cooled sheet material on breaker roll, is placed in moveable hopper;
5. fine powder is broken: the material after coarse crushing is delivered in grinder that to carry out fine powder broken by described moveable hopper;
6. superfine powder is separated: superfine powder is separated by smart crushing rear material after cyclone separator, then through sack cleaner dedusting;
7. sieve: isolate the material of superfine powder again through screening, sieve removes undesirable coarse granule, namely obtains powdery paints finished product.
Embodiment 4: a kind of powdery paints production technology, comprises the steps:
1. mix: resin is divided proportional be 6/5 two parts, by in mixer that wherein a part joins with crushing function, open hybrid switch and stir 420s, after unlatching hybrid switch 35s, open broken switch carry out break process, add other auxiliary agents of powdery paints after the start of mixing, add another part resin after mixing 60s, mixing closes broken switch while terminating, and forms mixed material;
2. melt extrude: the complete material of mixing is joined in melting plant by screw feeder, first thermal treatment zone and second thermal treatment zone is comprised by melting plant described in material addition sequence, the temperature of described first thermal treatment zone is 85 DEG C, described in the ratio of described second thermal treatment zone, first thermal treatment zone is high 5 DEG C, the material after melting through pressure roller group in the form of sheets machine go out;
3. compressing tablet cooling: extrude rear material on chip and be transported to coarse crushing device place with transport tape, transport tape place is provided with air-cooled unit and cools sheet material;
4. coarse crushing: the crushing teeth coarse crushing of cooled sheet material on breaker roll, is placed in moveable hopper;
5. fine powder is broken: the material after coarse crushing is delivered in grinder that to carry out fine powder broken by described moveable hopper;
6. superfine powder is separated: superfine powder is separated by smart crushing rear material after cyclone separator, then through sack cleaner dedusting;
7. sieve: isolate the material of superfine powder again through screening, sieve removes undesirable coarse granule, namely obtains powdery paints finished product.
Claims (7)
1. a powdery paints production technology, is characterized in that: comprise the steps:
1. mix: resin is divided proportional two parts for 4/5-6/5, by in mixer that wherein a part joins with crushing function, open hybrid switch and stir 300-500s, after unlatching hybrid switch 30-60s, open broken switch carry out break process, add other auxiliary agents of powdery paints after the start of mixing, add another part resin after mixing 20-100s, mixing closes broken switch while terminating, and forms mixed material;
2. melt extrude: the complete material of mixing is joined in melting plant, first thermal treatment zone and second thermal treatment zone is comprised by melting plant described in material addition sequence, the temperature of described first thermal treatment zone is 80-125 DEG C, first thermal treatment zone height 2-10 DEG C described in the ratio of described second thermal treatment zone, the material after melting through extrusion device in the form of sheets machine go out;
3. compressing tablet cooling: extrude rear material on chip and be transported to coarse crushing device place with transport tape, transport tape place is provided with cooling device;
4. coarse crushing: cooled sheet material, through breaker roll coarse crushing, is placed in moveable hopper;
5. fine powder is broken: the material after coarse crushing is delivered in grinder that to carry out fine powder broken by described moveable hopper;
6. superfine powder is separated: superfine powder is separated by smart crushing rear material after powder separation device, then through dust arrester dedusting;
7. sieve: isolate the material of superfine powder again through screening, sieve removes undesirable coarse granule, namely obtains powdery paints finished product.
2. a kind of powdery paints production technology according to claim 1, is characterized in that: the pressure roller group that described step extrusion device 2. forms for two pressure rollers be disposed adjacent, and the gap of material in the middle of described pressure roller group is extruded in the form of sheets.
3. a kind of powdery paints production technology according to claim 1, is characterized in that: described step 2. in melting plant before be provided with screw feeder.
4. a kind of powdery paints production technology according to claim 1, is characterized in that: described step 3. described in cooling device be arranged on the air-cooled unit above described conveyer belt.
5. a kind of powdery paints production technology according to claim 1, is characterized in that: described step 4. in breaker roll on be provided with crushing teeth, crushing teeth rolls sheet material makes it broken.
6. a kind of powdery paints production technology according to claim 1, is characterized in that: described step 6. in powder separation device be cyclone separator.
7. a kind of powdery paints production technology according to claim 1, is characterized in that: described step 6. in dust arrester be sack cleaner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510985529.8A CN105383031B (en) | 2015-12-25 | 2015-12-25 | A kind of powdery paints production technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510985529.8A CN105383031B (en) | 2015-12-25 | 2015-12-25 | A kind of powdery paints production technology |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105383031A true CN105383031A (en) | 2016-03-09 |
| CN105383031B CN105383031B (en) | 2017-10-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510985529.8A Active CN105383031B (en) | 2015-12-25 | 2015-12-25 | A kind of powdery paints production technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105383031B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105817310A (en) * | 2016-04-22 | 2016-08-03 | 浙江华彩化工有限公司 | Powder coating processing facility |
| CN107081885A (en) * | 2017-06-06 | 2017-08-22 | 科威嘉粉末涂料（天津）股份有限公司 | A kind of automatic production device of changeable colors along with angle powdery paints |
| CN109605598A (en) * | 2018-12-20 | 2019-04-12 | 重庆七彩虹新材料技术有限公司 | A kind of preparation process of powdery paints |
| CN110523510A (en) * | 2019-09-06 | 2019-12-03 | 韩山师范学院 | A kind of powdery paints process units |
| CN112246403A (en) * | 2020-10-04 | 2021-01-22 | 夏莹莹 | Mineral powder coating production and preparation process |
| CN112661408A (en) * | 2020-12-28 | 2021-04-16 | 立丰家庭用品（南京）有限公司 | Electrostatic enamel powder, preparation method of electrostatic enamel powder and preparation device of electrostatic enamel powder |
| CN113667361A (en) * | 2021-09-27 | 2021-11-19 | 赣州立幸邦新材料有限公司 | PVDF solid fluorocarbon coating and preparation process thereof |
| TWI797416B (en) * | 2019-01-22 | 2023-04-01 | 德商雷諾福瑞克有限公司 | Apparatus for producing reinforcing elements |
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| CN102604129A (en) * | 2012-03-11 | 2012-07-25 | 东华大学 | Dispersion method of carbon nanometer pipe in ethoxyline resin |
| CN103160196A (en) * | 2013-02-22 | 2013-06-19 | 安徽华辉塑业科技有限公司 | Powder coatings special for glass |
| CN203916844U (en) * | 2014-07-10 | 2014-11-05 | 浙江瑞泰耐火材料科技有限公司 | A kind of castable classification collator |
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2015
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102604129A (en) * | 2012-03-11 | 2012-07-25 | 东华大学 | Dispersion method of carbon nanometer pipe in ethoxyline resin |
| CN103160196A (en) * | 2013-02-22 | 2013-06-19 | 安徽华辉塑业科技有限公司 | Powder coatings special for glass |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105817310A (en) * | 2016-04-22 | 2016-08-03 | 浙江华彩化工有限公司 | Powder coating processing facility |
| CN105817310B (en) * | 2016-04-22 | 2019-04-12 | 浙江华彩新材料有限公司 | A kind of powder coating processing device |
| CN107081885A (en) * | 2017-06-06 | 2017-08-22 | 科威嘉粉末涂料（天津）股份有限公司 | A kind of automatic production device of changeable colors along with angle powdery paints |
| CN109605598A (en) * | 2018-12-20 | 2019-04-12 | 重庆七彩虹新材料技术有限公司 | A kind of preparation process of powdery paints |
| CN109605598B (en) * | 2018-12-20 | 2020-11-24 | 重庆七彩虹新材料技术有限公司 | Preparation process of powder coating |
| TWI797416B (en) * | 2019-01-22 | 2023-04-01 | 德商雷諾福瑞克有限公司 | Apparatus for producing reinforcing elements |
| CN110523510A (en) * | 2019-09-06 | 2019-12-03 | 韩山师范学院 | A kind of powdery paints process units |
| CN110523510B (en) * | 2019-09-06 | 2021-02-09 | 韩山师范学院 | Powder coating apparatus for producing |
| CN112246403A (en) * | 2020-10-04 | 2021-01-22 | 夏莹莹 | Mineral powder coating production and preparation process |
| CN112246403B (en) * | 2020-10-04 | 2021-10-22 | 贵州贵毅宏祥环保材料有限公司 | Mineral powder coating production and preparation process |
| CN112661408A (en) * | 2020-12-28 | 2021-04-16 | 立丰家庭用品（南京）有限公司 | Electrostatic enamel powder, preparation method of electrostatic enamel powder and preparation device of electrostatic enamel powder |
| CN113667361A (en) * | 2021-09-27 | 2021-11-19 | 赣州立幸邦新材料有限公司 | PVDF solid fluorocarbon coating and preparation process thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105383031B (en) | 2017-10-27 |
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Denomination of invention: A Powder Coating Production Process Effective date of registration: 20231109 Granted publication date: 20171027 Pledgee: Deqing sub branch of Huzhou Bank Co.,Ltd. Pledgor: DEQING COUNTY JINQIU PLASTIC POWDER Co.,Ltd. Registration number: Y2023980064871 |