CN104073851A - Electrogalvanizing process for neodymium-iron-boron permanent-magnet material - Google Patents
Electrogalvanizing process for neodymium-iron-boron permanent-magnet material Download PDFInfo
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- CN104073851A CN104073851A CN201410279244.8A CN201410279244A CN104073851A CN 104073851 A CN104073851 A CN 104073851A CN 201410279244 A CN201410279244 A CN 201410279244A CN 104073851 A CN104073851 A CN 104073851A
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Abstract
The invention discloses an electrogalvanizing process for a neodymium-iron-boron permanent-magnet material. The electrogalvanizing process comprises the following steps of: step 1, loading electrogalvanizing products on an automatic production line; step 2, carrying out an acid washing operation, a first water washing operation and an ultrasonic cleaning operation on the electrogalvanizing products; step 3, carrying out a second water washing operation, an activation operation, a third water washing operation and an electroplating operation on the electrogalvanizing products; and step 4, carrying out a fourth water washing operation, a bright dipping operation, a fifth water washing operation, a passivation operation, a sixth water washing operation, a closing operation, an blow-drying operation and a drying operation on the electrogalvanizing products, wherein the loaded electrogalvanizing products are directly placed in the rotary drum of the automatic production line, and the operations of the step 2 to the step 4 are carried out in the rotary drum. According to the electrogalvanizing process for the neodymium-iron-boron permanent-magnet material, the working efficiency is increased; in addition, pre-plating is carried out before electroplating, thus overcoming the problem that a product binding force is affected due to surface oxidization when the products are exploded to the air for a long time.
Description
Technical field
The present invention relates to the manufacture field of neodymium iron boron, particularly a kind of neodymium-iron boron permanent magnetic material electroplating zinc technology.
Background technology
Along with social development, environment is increasing on the people's life impact, and the environmental protection vehicles are more and more subject to people's favor.Especially nearly ten years, the raising significantly of the output of power truck, from rural area to small towns, to city, is the crowd of power truck everywhere.Power truck sales volume increases, also raising significantly of the permanent magnet product of power truck need of production so, and therefore production power truck permanent magnet product enterprise is also in all parts of the country everywhere, but the shortcoming of permanent magnet product is anticorrosion poor, need to do rotproofing---electroplate.
And at present, known for neodymium-iron boron permanent magnetic material electroplating zinc technology, be all manual operation, do not implement automatic production.Manual operation is taken a lot of work, is required great effort, and production efficiency is low, and quality product is stable not, cannot meet customer need.
In addition, neodymium iron boron product disadvantage, solidity to corrosion is poor, clean up product and deposit in air, more than 15 seconds, product surface will get rusty, and manually-operated plated item is entering before plating tank, first will carry out activation treatment, object is that product surface is coarse, increases surface-area, but the product needed after activation stopped about 20 seconds in air, overtime gets rusty product surface, and then affects product bonding force, and then affects the electroplating quality of product.
The information that is disclosed in this background technology part is only intended to increase the understanding of the general background to invention, and should not be regarded as admitting or imply that in any form this information structure has been the known prior art of persons skilled in the art.
Summary of the invention
The object of the present invention is to provide a kind of neodymium-iron boron permanent magnetic material electroplating zinc technology of simple and reasonable steps, this neodymium-iron boron permanent magnetic material electroplating zinc technology is by plated item is directly contained in cylinder, and the complete ultrasonic cleaning of directly carrying out of pickling, has improved working efficiency.In addition, before plating, first carry out preplating, overcome product open-assembly time in air long, cause surface oxidation, affect product bonding force.Further, improved drum rotational speed, be provided with timing rotating and the simultaneously upper and lower porpoising of cylinder, made plated item surface passivation, sealing evenly, product preservative property are good.
For achieving the above object, the invention provides neodymium-iron boron permanent magnetic material electroplating zinc technology, comprise the following steps: step 1, will on plated item, expect automatic production line; Step 2, carries out pickling operation, washing operation for the first time and ultrasonic cleaning operation to plated item; Step 3, washes operation, activation act, washing operation for the third time and electroplating operations for the second time to plated item; Step 4, carries out the 4th washing operation, bright dipping operation, the 5th washing operation, passivation operation, washes operation, " locked in " operation the 6th time, dries up operation and drying operation plated item; Wherein, be directly contained in the cylinder of automatic production line through the plated item of material loading, step 2 to the operation of step 4 is all carried out in this cylinder.
Preferably, in technique scheme, the ultrasonic frequency of ultrasonic cleaning is 68 kilohertzs.
Preferably, in technique scheme, when plated item is carried out to passivation and " locked in " operation, on the deactivation slot of automatic production line and enclosed slot, set up the upper and lower porpoising device of adjustable speed-changing device, commutation device and cylinder, wherein, while setting up adjustable speed-changing device and make plated item carry out passivation, " locked in " operation, the rotating speed of cylinder improves; Upper and lower porpoising when cylinder timing rotating when setting up the upper and lower porpoising device of commutation device and cylinder and making plated item carry out passivation, " locked in " operation.
Preferably, in technique scheme, carrying out after activation act to plated item, increase preplating operation before electroplating operations.
Compared with prior art, the present invention has following beneficial effect: this neodymium-iron boron permanent magnetic material electroplating zinc technology is by plated item is directly contained in cylinder, and the complete ultrasonic cleaning of directly carrying out of pickling, has improved working efficiency.In addition, before plating, first carry out preplating, overcome product open-assembly time in air long, cause surface oxidation, affect product bonding force.Further, improved drum rotational speed, be provided with timing rotating and the simultaneously upper and lower porpoising of cylinder, made plated item surface passivation, sealing evenly, product preservative property are good.
Brief description of the drawings
Fig. 1 is the schema of neodymium-iron boron permanent magnetic material electroplating zinc technology of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail, but is to be understood that protection scope of the present invention is not subject to the restriction of embodiment.
Unless separately there is other clearly to represent, otherwise in whole specification sheets and claims, term " comprises " or its conversion was stated being understood to include as " comprising " or " including " etc. element or integral part, and do not get rid of other element or other integral part.
As shown in Figure 1, comprising the following steps according to the neodymium-iron boron permanent magnetic material electroplating zinc technology of the specific embodiment of the invention:
Step 1, will expect automatic production line on plated item;
Plated item through material loading is directly contained in the cylinder of automatic production line, and in subsequent process, each link can not go out cylinder.
Step 2, carries out pickling operation, washing operation for the first time and ultrasonic cleaning operation to plated item;
When manual operation ultrasonic cleaning, product is placed in stainless steel gauze, be placed directly in ultrasonic wave bottom and carry out ultrasonic cleaning, 28 hertz of ultrasonic frequencies, but product is placed in cylinder, being placed on product matrix in the ultrasonic wave of same 28 kilohertzs can not clean up, meet and electroplate requirement, therefore ultrasonic cleaning is exactly key point, for ensureing ultrasonic effect, product is still placed in cylinder, ultrasonic frequency is adjusted into 68 kilohertzs, principle is that ultrasonic frequency is larger, the bubble that cavitation effect produces is less, bubble is little, just can pass through cylinder eye, ultrasonic strength is delivered to product surface, reach ultrasonic object.In addition, better for guaranteeing ultrasonic effect, when ultrasonic, cylinder increases upper and lower porpoising, according to operating with upper type, has cleaned matrix and can meet plating requirement.
Step 3, washes operation, activation act, washing operation for the third time and electroplating operations for the second time to plated item;
Wherein, plated item is entering before plating tank, first to carry out activation treatment, object is that product surface is coarse, increase surface-area, but the product after activation can only stop in air in 20 seconds, after overtime, product surface gets rusty, affect product bonding force, can cause like this design output degradation of automation line.Implement smoothly for guarantee automation line, meet design output, having activated product increases preplating operation, product surface after preplating has had coating, can in one minute, guarantee that product surface is not oxidized, automation line operation has had sufficient working time like this, has guaranteed the design output of automation line.
Step 4, carries out the 4th washing operation, bright dipping operation, the 5th washing operation, passivation operation, washes operation, " locked in " operation the 6th time, dries up operation and drying operation plated item;
The product needed of having electroplated is carried out passivation, sealing treatment, and object is to improve the preservative property of product, and when manual operation, the product of passivation is few, can stir evenly, and evenly, product preservative property are good for natural products surface passivation, sealing.And automation line passivation, be enclosed in cylinder and carry out, quantity is many, and drum rotational speed is even, and product surface and passivating solution, confining liquid are inhomogeneous duration of contact like this, and preservative effect is naturally poor.Need to setting up the upper and lower porpoising device of adjustable speed-changing device, commutation device and cylinder on deactivation slot, enclosed slot for this reason, like this, make plated item the drum rotational speed of passivation, sealing improve and timing rotating in upper and lower porpoising, and then product is fully stirred in cylinder, product surface fully contacts with passivating solution, confining liquid, product surface processing puts in place, and quality product is ensured.
To sum up, this neodymium-iron boron permanent magnetic material electroplating zinc technology is by plated item is directly contained in cylinder, and the complete ultrasonic cleaning of directly carrying out of pickling, has improved working efficiency.In addition, before plating, first carry out preplating, overcome product open-assembly time in air long, cause surface oxidation, affect product bonding force.Further, improved drum rotational speed, be provided with timing rotating and the simultaneously upper and lower porpoising of cylinder, made plated item surface passivation, sealing evenly, product preservative property are good.
The aforementioned description to concrete exemplary of the present invention is in order to illustrate and the object of illustration.These descriptions not want the present invention to be defined as disclosed precise forms, and obviously, according to above-mentioned instruction, can much change and change.Exemplary embodiment is selected and the object described is to explain certain principles of the present invention and practical application thereof, thereby made those skilled in the art can realize and utilize various exemplary of the present invention and various selection and change.Scope of the present invention is intended to be limited by claims and equivalents thereof.
Claims (4)
1. a neodymium-iron boron permanent magnetic material electroplating zinc technology, is characterized in that, comprises the following steps:
Step 1, will expect automatic production line on plated item;
Step 2, carries out pickling operation, washing operation for the first time and ultrasonic cleaning operation to plated item;
Step 3, washes operation, activation act, washing operation for the third time and electroplating operations for the second time to plated item;
Step 4, carries out the 4th washing operation, bright dipping operation, the 5th washing operation, passivation operation, washes operation, " locked in " operation the 6th time, dries up operation and drying operation plated item;
Wherein, be directly contained in the cylinder of automatic production line through the plated item of material loading, described step 2 to the operation of step 4 is all carried out in this cylinder.
2. neodymium-iron boron permanent magnetic material electroplating zinc technology according to claim 1, is characterized in that, the ultrasonic frequency of described ultrasonic cleaning is 68 kilohertzs.
3. neodymium-iron boron permanent magnetic material electroplating zinc technology according to claim 1, it is characterized in that, when plated item is carried out to passivation and " locked in " operation, on the deactivation slot of automatic production line and enclosed slot, set up the upper and lower porpoising device of adjustable speed-changing device, commutation device and cylinder, wherein, while setting up adjustable speed-changing device and make plated item carry out passivation, " locked in " operation, the rotating speed of cylinder improves; Upper and lower porpoising when cylinder timing rotating when setting up the upper and lower porpoising device of commutation device and cylinder and making plated item carry out passivation, " locked in " operation.
4. according to the neodymium-iron boron permanent magnetic material electroplating zinc technology described in any one in claims 1 to 3, it is characterized in that, carrying out after activation act to plated item, increase preplating operation before electroplating operations.
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| CN201410279244.8A CN104073851A (en) | 2014-06-20 | 2014-06-20 | Electrogalvanizing process for neodymium-iron-boron permanent-magnet material |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104499014A (en) * | 2014-12-15 | 2015-04-08 | 钢铁研究总院 | Neodymium-iron-boron electrogalvanizing iron weakly-acidic chloride system additive and preparation thereof |
| CN105112924A (en) * | 2015-08-10 | 2015-12-02 | 温州市博克电子有限公司 | Surface treatment method for waterproof magnetic lock |
| CN106435678A (en) * | 2016-11-21 | 2017-02-22 | 京磁材料科技股份有限公司 | Electroplating pretreatment method and equipment for neodymium-iron-boron magnet |
| CN106521586A (en) * | 2016-11-28 | 2017-03-22 | 宁波韵升股份有限公司 | Electrogalvanizing method of neodymium iron boron magnet |
| CN106884200A (en) * | 2017-03-23 | 2017-06-23 | 中磁科技股份有限公司 | Automatic zinc-plated production method |
| CN107059082A (en) * | 2017-06-29 | 2017-08-18 | 十堰市协兴工贸有限公司 | A kind of zincate barrel plating zinc technology |
| CN107604407A (en) * | 2017-10-31 | 2018-01-19 | 宁波和勤化学有限公司 | A kind of Nd-Fe-B magnet steel electroplating technology |
| CN111321441A (en) * | 2020-04-10 | 2020-06-23 | 中磁科技股份有限公司 | Full-automatic neodymium iron boron galvanizing process |
| CN113667968A (en) * | 2021-10-25 | 2021-11-19 | 天津三环乐喜新材料有限公司 | Chromium-free passivation method for zinc-plated product of neodymium-iron-boron permanent magnet |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104499014A (en) * | 2014-12-15 | 2015-04-08 | 钢铁研究总院 | Neodymium-iron-boron electrogalvanizing iron weakly-acidic chloride system additive and preparation thereof |
| CN105112924A (en) * | 2015-08-10 | 2015-12-02 | 温州市博克电子有限公司 | Surface treatment method for waterproof magnetic lock |
| CN105112924B (en) * | 2015-08-10 | 2018-10-23 | 温州市博克电子有限公司 | A kind of surface treatment method of waterproof magnetic force lock |
| CN106435678A (en) * | 2016-11-21 | 2017-02-22 | 京磁材料科技股份有限公司 | Electroplating pretreatment method and equipment for neodymium-iron-boron magnet |
| CN106521586A (en) * | 2016-11-28 | 2017-03-22 | 宁波韵升股份有限公司 | Electrogalvanizing method of neodymium iron boron magnet |
| CN106884200A (en) * | 2017-03-23 | 2017-06-23 | 中磁科技股份有限公司 | Automatic zinc-plated production method |
| CN107059082A (en) * | 2017-06-29 | 2017-08-18 | 十堰市协兴工贸有限公司 | A kind of zincate barrel plating zinc technology |
| CN107604407A (en) * | 2017-10-31 | 2018-01-19 | 宁波和勤化学有限公司 | A kind of Nd-Fe-B magnet steel electroplating technology |
| CN111321441A (en) * | 2020-04-10 | 2020-06-23 | 中磁科技股份有限公司 | Full-automatic neodymium iron boron galvanizing process |
| CN113667968A (en) * | 2021-10-25 | 2021-11-19 | 天津三环乐喜新材料有限公司 | Chromium-free passivation method for zinc-plated product of neodymium-iron-boron permanent magnet |
| CN113667968B (en) * | 2021-10-25 | 2022-02-18 | 天津三环乐喜新材料有限公司 | Chromium-free passivation method for zinc-plated product of neodymium-iron-boron permanent magnet |
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Application publication date: 20141001 |