CN104439244A - Preparation method of neodymium iron boron based on 3D printing technology - Google Patents
Preparation method of neodymium iron boron based on 3D printing technology Download PDFInfo
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- CN104439244A CN104439244A CN201310417711.4A CN201310417711A CN104439244A CN 104439244 A CN104439244 A CN 104439244A CN 201310417711 A CN201310417711 A CN 201310417711A CN 104439244 A CN104439244 A CN 104439244A
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Abstract
The invention discloses a preparation method of neodymium iron boron based on a 3D printing technology. The preparation method comprises the following steps (all percents are mass ratios): (1) neodymium iron boron powder, a binding agent and processing aid are grinded to thin line type neodymium iron boron with uniform thickness, wherein the neodymium iron boron powder is 85-90%, the binding agent is 10-15%, and the processing aid is 4-5%; (2) produced strip neodymium iron boron is loaded in a feeding mechanism of a 3D printer; (3) a three-dimensional modeling is performed through a computer software in a computer according to the shape and the size of the product; and (4) the three-dimensional modeling data of the product is transmitted to a digital-to-analogue conversion device of the 3D printer by the computer; the digital-to-analogue conversion device performs the digital-to-analogue conversion for the received data, and decomposes the converted three-dimensional modeling layers layer by layer to form a series of plans with continuous serial numbers from bottom to top; and the plans are converted to CAE programs.
Description
Technical field
The present invention relates to a kind of preparation method, specifically relates to a kind of preparation method of the neodymium iron boron based on 3D printing technique.
Background technology
Neodymium-iron-boron magnetic material, as the latest result of rare earth permanent-magnetic material development, is called as due to the magnetic property of its excellence " magnetic king ".Neodymium-iron-boron magnetic material is neodymium, the alloy of iron oxide etc.Also known as magnet steel.Neodymium iron boron has high magnetic energy product and coercivity, the advantage of high-energy-density makes Nd-Fe-Bo permanent magnet material be applied widely in modern industry and electronic technology simultaneously, thus makes the miniaturization of the equipment such as instrument and meter, electroacoustic motor, magnetic separation magnetization, lightweight, slimming become possibility.The advantage of neodymium iron boron is that cost performance is high, the mechanical property that tool is good; Weak point is that Curie point is low, and temperature characterisitic is poor, and is easy to dusting corrosion, and surface treatment method must be taked to make it to be improved by its chemical composition of adjustment, just can reach the requirement of practical application.Current rare earth permanent magnet application has penetrated into the aspects such as automobile, household electrical appliance, electronic instrument, Magnetic resonance imaging, stereo set, small and special electric machine, mobile phone.In medical, use rare earth permanent-magnetic material to carry out " acipoint magnetotheraphy ", curative effect is greatly improved, thus facilitates the rapid popularization of " acipoint magnetotheraphy ".In the every field of application rare earth, rare earth permanent-magnetic material is with the fastest developing speed one.It brings huge motive force not only to the development of Rare-earth Industry, also produces suitable far-reaching influence to many related industries.The demand of the world to high-performance rare-earth permanent magnet material increases rapidly.1998 world's neodymium iron boron (comprising sintered magnet and bonded permanent magnet) output up to 11300 tons, annual growth all remains on more than 30% in recent years.Attracting people's attention soon of rare earth permanent-magnetic material development.
Moulding process such as preparing traditional handicraft many employings mold pressing of neodymium iron boron, inject, extrude, moulding process such as adopting mold pressing, inject, extrude needs the mould of a large amount of different size, these can consume a large amount of costs and take up an area space, and the maintenance in later stage also needs a large amount of manpowers, add designing and making mould and can need the longer cycle, these will delay in delivery phase or cause can not punctual delivery.In addition, adopt the blank dimension of the shaping production of traditional handicraft can not accomplish accurately to put in place, the later stage also needs to carry out machined to it, is unfavorable for the change of magnet specification, and processing cost is very high, the magnet simultaneously making ultrathin (being less than 1 millimeter) has very large difficulty of processing.
Summary of the invention
The object of the invention is to overcome deficiency of the prior art, provide a kind of preparation method of the neodymium iron boron based on 3D printing technique.
In order to solve the problems of the technologies described above, the present invention is achieved through the following technical solutions:
The present invention solves the problems of the technologies described above adopted technical scheme: a kind of preparation method of the neodymium iron boron based on 3D printing technique, and it comprises the following steps (described percentage sign is mass ratio):
(1), neodymium iron boron powder, binding agent and processing aid are forged into the fine rule type neodymium iron boron of even thickness; Wherein neodymium iron boron powder is 85%-90%, and binding agent is 10%-15%, and processing aid is 4%-5%;
(2), the bar shaped neodymium iron boron made is loaded in the feed mechanism of 3D printer;
(3), according to the shape and size of product, in computer, three-dimensional modeling is carried out by computer software;
(4), the three-dimensional modeling data of product is transferred to the digiverter in 3D printer by computer; The data received are carried out digital-to-analogue conversion by described digiverter; Three-dimensional modeling layer after conversion is also pressed layer and is decomposed by described digiverter, forms the plane of a series of continuous sequence number from bottom to top; Convert these planes to CAE program again;
(5), by CAE programme-control, the bar shaped neodymium iron boron in feed mechanism is sprayed by Multi-stage heating unit nozzle and magnetizes in moulder's station in the guard chamber with protective gas; The heating-up temperature of Multi-stage heating unit is 20-900 DEG C; By heat effect, spray and to dissolve with processing aid and by together with bar shaped neodymium iron boron binding at the binding agent in the bar shaped neodymium iron boron in moulder's station that magnetizes, successively accumulation bonding mutually, complete magnetizing to neodymium iron boron simultaneously, 3D printer has printed, formed product.
Compared with prior art, the invention has the advantages that:
By computer, three-dimensional modeling is carried out to product, again three-dimensional modeling data is transferred to 3D printer, recycling CAE technology produces the plane of some continuous stratifications, print according to plane control 3D printer, save a large amount of mould development expenses, shorten the production cycle, production efficiency significantly improves.Product size can change arbitrarily, is applicable to the special-shaped products that difficulty of processing is very large, and products thickness can be less than 1mm, is convenient to client and assembles use, meet small and special electric machine to small-sized, ultra-thin, at a high speed, the requirement of high accuracy and low noise future development.
Detailed description of the invention
Below in conjunction with accompanying drawing and detailed description of the invention, the present invention is described in further detail:
The present invention solves the problems of the technologies described above adopted technical scheme: a kind of preparation method of the neodymium iron boron based on 3D printing technique, and it comprises the following steps (described percentage sign is mass ratio):
(1), neodymium iron boron powder, binding agent and processing aid are forged into the fine rule type neodymium iron boron of even thickness; Wherein neodymium iron boron powder is 85%-90%, and binding agent is 10%-15%, and processing aid is 4%-5%;
(2), the bar shaped neodymium iron boron made is loaded in the feed mechanism of 3D printer;
(3), according to the shape and size of product, in computer, three-dimensional modeling is carried out by computer software;
(4), the three-dimensional modeling data of product is transferred to the digiverter in 3D printer by computer; The data received are carried out digital-to-analogue conversion by described digiverter; Three-dimensional modeling layer after conversion is also pressed layer and is decomposed by described digiverter, forms the plane of a series of continuous sequence number from bottom to top; Convert these planes to CAE program again;
(5), by CAE programme-control, the bar shaped neodymium iron boron in feed mechanism is sprayed by Multi-stage heating unit nozzle and magnetizes in moulder's station in the guard chamber with protective gas; The heating-up temperature of Multi-stage heating unit is 20-900 DEG C; By heat effect, spray and to dissolve with processing aid and by together with bar shaped neodymium iron boron binding at the binding agent in the bar shaped neodymium iron boron in moulder's station that magnetizes, successively accumulation bonding mutually, complete magnetizing to neodymium iron boron simultaneously, 3D printer has printed, formed product.
The undeclared part related in the present invention is same as the prior art or adopt prior art to be realized.
Claims (2)
1. based on a preparation method for the neodymium iron boron of 3D printing technique, comprise 5 parts, it is characterized in that: described basic making step.
2. basic making step according to claim 1, is characterized in that: described basic step comprises (described percentage sign is mass ratio):
Described step (1), neodymium iron boron powder, binding agent and processing aid are forged into the fine rule type neodymium iron boron of even thickness; Wherein neodymium iron boron powder is 85%-90%, and binding agent is 10%-15%, and processing aid is 4%-5%;
Described step (2), the bar shaped neodymium iron boron made is loaded in the feed mechanism of 3D printer;
Described step (3), shape and size according to product, carry out three-dimensional modeling by computer software in computer;
The three-dimensional modeling data of product is transferred to the digiverter in 3D printer by described step (4), computer; The data received are carried out digital-to-analogue conversion by described digiverter; Three-dimensional modeling layer after conversion is also pressed layer and is decomposed by described digiverter, forms the plane of a series of continuous sequence number from bottom to top; Convert these planes to CAE program again;
Described step (5), by CAE programme-control, the bar shaped neodymium iron boron in feed mechanism is sprayed by Multi-stage heating unit nozzle and magnetizes in moulder's station in the guard chamber with protective gas; The heating-up temperature of Multi-stage heating unit is 20-900 DEG C; By heat effect, spray and to dissolve with processing aid and by together with bar shaped neodymium iron boron binding at the binding agent in the bar shaped neodymium iron boron in moulder's station that magnetizes, successively accumulation bonding mutually, complete magnetizing to neodymium iron boron simultaneously, 3D printer has printed, formed product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310417711.4A CN104439244A (en) | 2013-09-15 | 2013-09-15 | Preparation method of neodymium iron boron based on 3D printing technology |
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| CN201310417711.4A CN104439244A (en) | 2013-09-15 | 2013-09-15 | Preparation method of neodymium iron boron based on 3D printing technology |
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| CN104439244A true CN104439244A (en) | 2015-03-25 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107195412A (en) * | 2017-05-23 | 2017-09-22 | 北京科技大学 | Preparation and application process of a kind of 3D printing with neodymium iron boron powder slurry |
| US9922759B2 (en) | 2015-09-24 | 2018-03-20 | Apple Inc. | Additive manufacturing of magnets |
| CN109148068A (en) * | 2017-06-28 | 2019-01-04 | 北京中科三环高技术股份有限公司 | A kind of magnetic powder of suitable 3D printing, bonded permanent magnet and preparation method thereof |
-
2013
- 2013-09-15 CN CN201310417711.4A patent/CN104439244A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9922759B2 (en) | 2015-09-24 | 2018-03-20 | Apple Inc. | Additive manufacturing of magnets |
| CN107195412A (en) * | 2017-05-23 | 2017-09-22 | 北京科技大学 | Preparation and application process of a kind of 3D printing with neodymium iron boron powder slurry |
| CN107195412B (en) * | 2017-05-23 | 2019-04-26 | 北京科技大学 | The preparation and application method of a kind of 3D printing with neodymium iron boron powder slurry |
| CN109148068A (en) * | 2017-06-28 | 2019-01-04 | 北京中科三环高技术股份有限公司 | A kind of magnetic powder of suitable 3D printing, bonded permanent magnet and preparation method thereof |
| CN109148068B (en) * | 2017-06-28 | 2021-06-15 | 北京中科三环高技术股份有限公司 | Magnetic powder suitable for 3D printing, bonded magnet and preparation method thereof |
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Application publication date: 20150325 |