CN102601031A - Surface spraying process for tiny magnetic workpieces - Google Patents
Surface spraying process for tiny magnetic workpieces Download PDFInfo
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- CN102601031A CN102601031A CN2012100889967A CN201210088996A CN102601031A CN 102601031 A CN102601031 A CN 102601031A CN 2012100889967 A CN2012100889967 A CN 2012100889967A CN 201210088996 A CN201210088996 A CN 201210088996A CN 102601031 A CN102601031 A CN 102601031A
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Abstract
The invention relates to a surface spraying process, in particular to a surface spraying process for tiny magnetic workpieces. The surface spraying process includes surface treatment, paint preparation, gun adjustment, auxiliary material adding, spraying, paint baking, screening and separation. Due to the surface spraying process, film thickness of a tiny magnetic workpiece after the tiny magnetic workpiece is sprayed is uniform, the surface of the tiny magnetic workpiece is smooth, and the tiny magnetic workpiece is glossy. The surface spraying process has the advantages of simple method, easiness in operation, uniform sprayed film thickness, low cost, and good and non-discoloring spraying effect of the tiny magnetic workpiece. The surface spraying process is applicable to adhering tiny neodymium iron boron magnetic workpieces.
Description
Technical field
The surface spray coating process of tiny magnets workpiece of the present invention relates to surface spray coating process, especially the surface spray coating process of tiny magnets workpiece.
Background technology
At present, the coating of bonded magnet mainly is electrophoresis and common spraying.Electrophoretic coating is after workpiece is put on the shelf, puts into electrophoresis tank and coats layer of even paint.For the small workpiece of magnet, if adopt electrophoretic coating, the small workpiece of that magnet put on the shelf with electrophoretic coating after hanging point on the small workpiece all will be one and be difficult to solve and unpractical problem.Because small workpiece is little, will need great amount of manpower and inefficiency so small workpiece is put on the shelf, and the problem of " hanging point " on the small workpiece in swimming back more is difficult to resolve certainly.Common spraying mainly contains two kinds: a kind of is to go up to hang spraying, and a kind of is smooth spraying.Last defective of hanging spraying: the one since small workpiece little go up hang difficulty and efficient low, the 2nd, last extension place causes owing to hanger contacts with magnet that spraying does not paint the magnet fraction is exposed influencing antiseptic power outside.The defective of smooth spraying: small workpiece is put on the flat board sprays; Paint can't be sprayed in the contact position of the contact position of small workpiece and plate, small workpiece and small workpiece; Cause the inhomogeneous and leakage field of small workpiece coating, have a strong impact on the antiseptic power of magnet.In order to address these problems, need seek a kind ofly can paint be uniformly sprayed small surface of the work of magnet and magnetic leakage free, can improve the method for Workpiece painting efficient again.
Summary of the invention
In order to solve an above difficult problem; Patent of the present invention provides a kind of surface spray coating process of tiny magnets workpiece; Through this spraying coating process surface spraying one deck thickness of workpiece is painted and magnetic leakage free uniformly; Can make the smooth surface of the small workpiece after the spraying, also can improve the efficient of the small Workpiece painting of magnet.
The surface spray coating process of a kind of tiny magnets workpiece that patent of the present invention provides, its processing step is: comprise following processing step:
A) surface treatment: before spraying, to the small workpiece of bonding rare-earth magnet to be sprayed clean, preliminary treatment and drying;
B) preparation of paint: before spraying, former lacquer liquid is fully mixed by a certain percentage with diluent and stirs its rate of specific gravity of back survey;
C) transfer rifle: after paint formulation is good, the liquid pipe will paint and spray gun couples together through coating with lacquer, and regulate gun traffic in suitable scope;
D) add auxiliary material: before coating, in the small workpiece of the magnet of treating coating, add a certain amount of auxiliary material to guarantee the smooth of product surface after the coating;
E) spraying: small workpiece and auxiliary material poured into make it in the roller flush coater by the certain speed uniform roll; Spray gun is aimed at the centre position of the small workpiece of uniform roll; After opening the spraying switch and making lacquer liquid is atomized under atomization air pressure; Under spray control gas pressure, make be atomized the back coating cloud through nozzle ejection to the surface of the small workpiece of uniform roll, make small surface of the work coat layer of even paint;
F) baking vanish: small Workpiece painting is put in the baking oven and is toasted after finishing;
G) screen and separate: baking vanish finishes after cooling, and the small workpiece after the spraying is screened and separates, and the small workpiece of adhesion is separated.
The surface spray coating process of above-mentioned tiny magnets workpiece, the preparation of said paint: the lacquer liquid for preparing need be used suitable strainer filtering, and the sediment in the lacquer liquid is leached.
The surface spray coating process of above-mentioned tiny magnets workpiece, said spraying: keep certain distance between Spray gun nozzle and the workpiece; Spray gun injection amplitude in the horizontal direction must cover all workpiece.
Adopt above-mentioned technology, spraying output is high.For example, for tile-shaped magnet below the R2 and the toroidal magnet below the φ 2mm, can be according to ten thousand of concrete specification primary coating 10-20/inferior; For the toroidal magnet of φ 2mm to φ 4mm, can primary coating 2-5 ten thousand/inferior.And technology is simple, easy to operate, lacquer difficult drop-off, surface of the work on spraying uniform film thickness, the small surface of the work are smooth, production efficiency is high.
Description of drawings
Fig. 1 is the surface spray coating process flow chart of tiny magnets workpiece of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is made further detailed description:
Shown in figure one, the surface spray coating process of the small workpiece of bonding rare-earth magnet of patent of the present invention comprises surface treatment, paint formulation, accent rifle, adds auxiliary material, spraying, baking vanish, screens and separate.
Get small workpiece to be sprayed and carry out surface treatment, to guarantee the clean of surface of the work and cleaning, cause surface particles etc. bad when avoiding spraying, surface treated in addition small workpiece can also increase the binding ability with lacquer liquid, improves spraying effect and efficient.After treating that small surface of the work is handled well, just can prepare required paint, regulate the flow size of spray gun again with the paint for preparing.Small workpiece after a certain proportion of auxiliary material and the surface treatment is poured in the roller flush coater together, regulated the flush coater rolling rate, make small workpiece by certain speed uniform roll.Then spray gun is placed on the flush coater center, paint is uniformly sprayed on the small surface of the work in rolling.Spraying puts it into oven for baking after accomplishing, and makes more firm being attached on the small surface of the work of thickness of small surface of the work.
Claims (3)
1. the surface spray coating process of tiny magnets workpiece is characterized in that comprising following processing step:
A) surface treatment: before spraying, to the small workpiece of bonding rare-earth magnet to be sprayed clean, preliminary treatment and drying;
B) preparation of paint: before spraying, former lacquer liquid is fully mixed by a certain percentage with diluent and stirs its rate of specific gravity of back survey;
C) transfer rifle: after paint formulation is good, the liquid pipe will paint and spray gun couples together through coating with lacquer, and regulate gun traffic in suitable scope;
D) add auxiliary material: before coating, in the small workpiece of the magnet of treating coating, add a certain amount of auxiliary material to guarantee the smooth of product surface after the coating;
E) spraying: small workpiece and auxiliary material poured into make it in the roller flush coater by the certain speed uniform roll; Spray gun is aimed at the centre position of the small workpiece of uniform roll; After opening the spraying switch and making lacquer liquid is atomized under atomization air pressure; Under spray control gas pressure, make be atomized the back coating cloud through nozzle ejection to the surface of the small workpiece of uniform roll, make small surface of the work coat layer of even paint;
F) baking vanish: small Workpiece painting is put in the baking oven and is toasted after finishing;
G) screen and separate: baking vanish finishes after cooling, and the small workpiece after the spraying is screened and separates, and the small workpiece of adhesion is separated.
2. the surface spray coating process of tiny magnets workpiece according to claim 1 is characterized in that the preparation of said paint: the lacquer liquid for preparing need be used suitable strainer filtering, and the sediment in the lacquer liquid is leached.
3. the surface spray coating process of tiny magnets workpiece according to claim 1 is characterized in that said spraying: keep certain distance between Spray gun nozzle and the workpiece; Spray gun injection amplitude in the horizontal direction must cover all workpiece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100889967A CN102601031A (en) | 2012-03-29 | 2012-03-29 | Surface spraying process for tiny magnetic workpieces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100889967A CN102601031A (en) | 2012-03-29 | 2012-03-29 | Surface spraying process for tiny magnetic workpieces |
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| Publication Number | Publication Date |
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| CN102601031A true CN102601031A (en) | 2012-07-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012100889967A Pending CN102601031A (en) | 2012-03-29 | 2012-03-29 | Surface spraying process for tiny magnetic workpieces |
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| CN (1) | CN102601031A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104008874A (en) * | 2013-09-18 | 2014-08-27 | 中磁科技股份有限公司 | Surface protection method for neodymium-iron-boron permanent-magnet material |
| CN105797941A (en) * | 2016-05-17 | 2016-07-27 | 湖南华曙高科技有限责任公司 | After-treatment method of added material manufacturing nylon part |
| CN106890777A (en) * | 2017-03-31 | 2017-06-27 | 无锡安士达五金有限公司 | Rivet baking vanish machine |
| CN111940266A (en) * | 2020-04-10 | 2020-11-17 | 中磁科技股份有限公司 | Coating process of neodymium iron boron product |
| CN112024317A (en) * | 2020-09-04 | 2020-12-04 | 界首市鑫华装璜彩印有限公司 | Baking varnish process for magnet processing |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101733237A (en) * | 2008-11-05 | 2010-06-16 | 中国航空工业标准件制造有限责任公司 | Method and equipment for coating dry-film lubricant |
-
2012
- 2012-03-29 CN CN2012100889967A patent/CN102601031A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101733237A (en) * | 2008-11-05 | 2010-06-16 | 中国航空工业标准件制造有限责任公司 | Method and equipment for coating dry-film lubricant |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104008874A (en) * | 2013-09-18 | 2014-08-27 | 中磁科技股份有限公司 | Surface protection method for neodymium-iron-boron permanent-magnet material |
| CN104008874B (en) * | 2013-09-18 | 2016-10-26 | 中磁科技股份有限公司 | Neodymium-iron-boron permanent magnetic material surface means of defence |
| CN105797941A (en) * | 2016-05-17 | 2016-07-27 | 湖南华曙高科技有限责任公司 | After-treatment method of added material manufacturing nylon part |
| CN106890777A (en) * | 2017-03-31 | 2017-06-27 | 无锡安士达五金有限公司 | Rivet baking vanish machine |
| CN111940266A (en) * | 2020-04-10 | 2020-11-17 | 中磁科技股份有限公司 | Coating process of neodymium iron boron product |
| CN112024317A (en) * | 2020-09-04 | 2020-12-04 | 界首市鑫华装璜彩印有限公司 | Baking varnish process for magnet processing |
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Application publication date: 20120725 |