CN1760285A - Recycling method for recovering metal type powder coating - Google Patents
Recycling method for recovering metal type powder coating Download PDFInfo
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- CN1760285A CN1760285A CN 200410085364 CN200410085364A CN1760285A CN 1760285 A CN1760285 A CN 1760285A CN 200410085364 CN200410085364 CN 200410085364 CN 200410085364 A CN200410085364 A CN 200410085364A CN 1760285 A CN1760285 A CN 1760285A
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Abstract
A process for reclaiming the metal-type powder paint includes such steps as sieving to recover the metal-type powder paint, proportionally mixing it with prepared substrate powder, and high-speed stirring.
Description
Technical field
The present invention relates to a kind of recycling method of metal-powder type coating.
Technical background
In industrial production, most of Industrial products such as household electrical appliances, automobile, motorcycle, toy etc. will carry out surface plastic spraying to be handled, to play effects such as protection and decoration.Metal type powder coating is a kind of special powder coating, maximum characteristics are made pigment with metal particle exactly, and pigment is one of important factor that influences surface finish, resin, solidifying agent etc. are filmogen, mix by mechanical stirring, the color of payment meeting to filming of its each component concentration, levelling property, shrinkage cavity and solubility property produce influence greatly, in the electrostatic plastic spraying operation, because the good electric conductivity of metallic pigment, coating is constantly built up on spray gun utmost point pin, to to a certain degree just dropping automatically, and since in the metal type powder coating proportion of metal powder higher relatively, its particulate homogeneity is poor, when spraying, the thicker part branch is not easy to be adsorbed, and thin part is waftd from going out to be coated with workpiece, in addition by air-flow, the metallic pigment bad dispersibility is formed little powder ball easily.Like this, each components contents has produced variation in the recovery powder, and aluminium powder is many, and compositions such as resin curing agent are few, destroyed the proportion of composing of original powder, had a strong impact on the performance of powder, particularly color and levelling property.Such powder can't be with other type as the epoxy type powder, reclaim back and new powder blending second stage employ, should reclaim powder in theory can not reuse, the metal mold powder that reclaims can only go out of use and waste, in actual use, institute's depleted ratio reaches more than 30%, if by the spray piece complex structure, then up to more than 50%.
Summary of the invention
The objective of the invention is to provides a kind of technology simple for addressing the above problem, and easy handling is with low cost; make the metal mold powder regeneration of recovery, and performance, color are identical with former powder with application property, and reach effective recycling; the protection environment is saved resource.
Technical scheme of the present invention is achieved in that a kind of metal type powder coating recycling method, comprises following steps: (a) prepare powder of a certain amount of end in proportion, put into pill tank; (b) metal type powder coating after the recovery sieves after the processing, gets and puts into pill tank in right amount; And (c) said mixture is stirred through homogenizer, promptly obtain the new powder of metal type powder coating.
According to aforesaid method, wherein the end powder with 1 part of weight mixes the ratio of the recovery powder of 2 to 3 parts of weight;
According to aforesaid method, wherein should its composition of end powder and content (weight %): pure polyester 65%; Barium sulfate: 14%; Titanium dioxide: 14%; Solidifying agent: 4.5%; Pigment: 1.2%; Flow agent: 0.8%; 701 doses: 0.2%; St-yrax: 0.3%.
According to aforesaid method, wherein this churning time is no more than 30 seconds.
According to aforesaid method, wherein its rotating speed of homogenizer is 4000-4800r/min.
By recycling of the present invention; the invention solves the metal mold powder in electrostatic spraying; because itself performance reclaims powder and can not normally recycle; and environmental pollution that brings thus and wasting of resources problem; the present invention is by very simple and very effective technological measure; as long as add suitable end powder, and grasp mixed method, promptly can be made into the powder identical with the virgin metal powder.
Pass through the inventive method, can be enterprise and save a large amount of costs, to produce 1000000 Motorcycle Aluminum Alloy wheel hub spraying utilizations per year is example, the powder that is sprayed onto every product is 0.1KG, according to the electrostatic dusting principle, then there is the 0.1KG powder to need to reclaim equally, remove proportioning and need end powder spending, annual cost-saved about 2,000,000 yuan, also solved recovery powder treatment problem, avoid contaminate environment, be not difficult to find out, this technology less investment, cost is low, can bring great social benefit and economic benefit, have very high maintenance to be worth.
Embodiment
Below several embodiment are specify (they are example to reclaim new powder 100Kg) to the inventive method
Embodiment one
In pill tank, add end powder 33.3Kg (each component content wherein: pure polyester 21.65Kg; Barium sulfate solid 4.66Kg; Titanium dioxide 4.66Kg; Solidifying agent 1.50Kg; Pigment 0.4Kg; Flow agent 0.26Kg; 701 doses of 0.07Kg; St-yrax 0.1Kg), get an amount of metal type powder coating again and reclaim powder, after the processing of sieving, get 66.7Kg and reclaim powder adding pill tank, stir through high speed machine, the time is no more than 30 seconds, promptly obtains new powder.
Embodiment two
In pill tank, add end powder 28.5Kg (each component content wherein: pure polyester 18.53Kg; Barium sulfate solid 3.99Kg; Titanium dioxide 3.99Kg; Solidifying agent 1.28Kg; Pigment 0.34Kg; Flow agent 0.22Kg; 701 doses of 0.06Kg; St-yrax 0.09Kg), get an amount of metal type powder coating again and reclaim powder, after the processing of sieving, get 71.5Kg and reclaim powder adding pill tank, stir through high speed machine, the time is no more than 30 seconds, promptly obtains new powder.
Embodiment three
In pill tank, add end powder 25.0Kg (each component content wherein: pure polyester 16.25Kg; Barium sulfate solid 3.50Kg; Titanium dioxide 3.50Kg; Solidifying agent 1.13Kg; Pigment 0.3Kg; Flow agent 0.2Kg; 701 doses of 0.05Kg; St-yrax 0.07Kg), get an amount of metal type powder coating again and reclaim powder, after the processing of sieving, get 75.0Kg and reclaim powder adding pill tank, stir through high speed machine, the time is no more than 30 seconds, promptly obtains new powder.
Method of the present invention, the metal-powder utilization ratio reaches more than 95%.
Claims (5)
1, a kind of metal type powder coating recycling method is characterized in that, comprises following steps:
(a) prepare powder of a certain amount of end in proportion, put into pill tank;
(b) metal type powder coating of Hui Shouing sieves after the processing, gets and puts into pill tank in right amount; And
(c) said mixture is stirred through homogenizer, promptly obtain the new powder of metal type powder coating.
2, metal type powder coating recycling method as claimed in claim 1 is characterized in that, powder of the described end with the configuration proportion that reclaims powder is: with the end powder of the 1 part of weight mixed to the recovery powder of 2 to 3 parts of weight;
3, metal type powder coating recycling method as claimed in claim 1 is characterized in that, its composition of powder of the described end and content (weight %): pure polyester 65%; Barium sulfate: 14%; Titanium dioxide: 14%; Solidifying agent: 4.5%; Pigment: 1.2%; Flow agent: 0.8%; 701 doses: 0.2%; St-yrax: 0.3%.
4, a kind of metal type powder coating recycling method as claimed in claim 1 is characterized in that churning time is no more than 30 seconds.
5, a kind of metal type powder coating recycling method as claimed in claim 1 is characterized in that its rotating speed of described homogenizer is 4000-4800r/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100853640A CN100572459C (en) | 2004-10-15 | 2004-10-15 | A kind of recycling method of metal type powder coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100853640A CN100572459C (en) | 2004-10-15 | 2004-10-15 | A kind of recycling method of metal type powder coating |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1760285A true CN1760285A (en) | 2006-04-19 |
| CN100572459C CN100572459C (en) | 2009-12-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100853640A Expired - Fee Related CN100572459C (en) | 2004-10-15 | 2004-10-15 | A kind of recycling method of metal type powder coating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100572459C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106497328A (en) * | 2016-10-28 | 2017-03-15 | 福建万安实业集团有限公司 | A kind of additional type electrosilvering powdery paints |
-
2004
- 2004-10-15 CN CNB2004100853640A patent/CN100572459C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106497328A (en) * | 2016-10-28 | 2017-03-15 | 福建万安实业集团有限公司 | A kind of additional type electrosilvering powdery paints |
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| Publication number | Publication date |
|---|---|
| CN100572459C (en) | 2009-12-23 |
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