CN104907255A - Device and technology for preparing powder used for high-quality iron-based 3D printing - Google Patents
Device and technology for preparing powder used for high-quality iron-based 3D printing Download PDFInfo
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- CN104907255A CN104907255A CN201510340929.3A CN201510340929A CN104907255A CN 104907255 A CN104907255 A CN 104907255A CN 201510340929 A CN201510340929 A CN 201510340929A CN 104907255 A CN104907255 A CN 104907255A
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Abstract
The invention relates to a device and technology for preparing powder used for high-quality iron-based 3D printing. The device and technology for preparing powder used for high-quality iron-based 3D printing is characterized in that the device comprises two or more levels of classifiers, and the last level classifier is connected with a dust-extraction device and an induced draft fan. The lower portion of the last level classifier is connected with an ultrasonic wave vibration separation system. The ultrasonic wave vibration separation system is further connected with an electrostatic impurity-removing system. According to the device and technology for preparing powder used for high-quality iron-based 3D printing, the high-quality metal powder after being processed through the processes of airflow separation, ultrasonic wave vibration separation and impurity removing with high pressure static is balanced in particles, good in mobility and high in powder uniformity, the technological process is reduced, the separation efficiency is high, the transportation cost and the labor cost between different working links are avoided, and pollution on the powder in the links are avoided further at the same time.
Description
Technical field
The present invention relates to raw-material preparation facilities and the technique of a kind of 3D printing, especially a kind of high-quality iron-based 3D prints device and the technique of powder.
Background technology
3D prints field and develops with rapid changepl. never-ending changes and improvements at present, but for have the aviation of particular/special requirement and medical field at present still at the stainless steel powder using traditional handicraft to prepare as printing raw material, 3D prints the powder used and powder evenly will be transported to by print area, every one deck increases thickness and is generally 30 ~ 50 microns, therefore powder is needed to have good mobility, this also proposes higher requirement to the mobility of powder, and require that the sphericity of powder is high, mobility is higher.
Current 3D prints the metal-powder major part used and adopts inert gas vacuum gas atomization to be prepared, in preparation process, raw material metal will carry out melting in oxide crucible, in fusion process the oxide material of crucible can there is trace with the fusion of metal liquid, in the observation of powder, there is the situation that metal and Non-metallic components in powder respectively account for a part.Fine non-metallics particle detachment simultaneously in fusion process on crucible is also easy to be introduced in final metal-powder, and is difficult to remove in the mechanical screening process of tradition at the non-metallic powder of the same order of magnitude with metallic particles diameter.If be introduced in 3D to print in the powder used the tiny flaw being easy to form printout inside.
Because 3D prints selective laser fusing and laser cladding, it is all rapid quench forming technology, the setting rate of this technique is fast, the molten bath zone that laser or electron beam etc. are formed is less, metal self with foreign matter or be mixed into some nonmetallic inclusions in metal powder and be difficult to be discharged outside, molten bath as the traditional handicrafts such as casting, even if can discharge outside in laser melting process but due to 3D print preparation process be the full-automatic process be layering, the impurity of discharge is easy to the connecting portion being wrapped in layer and layer seam.
Summary of the invention
The present invention is directed to the problems referred to above, the raw-material preparation facilities providing a kind of 3D to print and technique, decrease technological process, the efficiency of separation is high, avoids the transport between different operating link and cost of labor, more avoids the pollution to powder between link simultaneously.
For this reason, the present invention takes following technical scheme, a kind of device preparing high-quality iron-based 3D printing powder, it is characterized in that comprising the sorter of at least two-stage, the sorter of afterbody connects dust arrester and air-introduced machine, the sorter bottom of described afterbody connects ultrasonic wave vibration separation system, and described ultrasonic wave vibration separation system is connected with electrostatic impurity removed system again.
Described electrostatic impurity removed system comprises transfer roller, and the side of described transfer roller arranges high-pressure electrostatic generator, and the bottom of described transfer roller arranges multiple accumulated powder bucket.
The side of described transfer roller arranges powered brush.
Described ultrasonic wave vibration separation system comprises ultrasonic wave vibratory sieve, supersonic generator and screen cloth.
Described sorter comprises one-level sorter and secondary sorter, and the bottom of two sorters arranges the first collecting vessel and the second collecting vessel respectively.
Described two sorters arrange baiting valve respectively.
The technical process utilizing said apparatus to be prepared is as follows: metal-powder is entered into one-level sorter through feeding mouth by (1), and thicker particle enters into the first collecting vessel through baiting valve; (2) thinner powder is sucked in secondary sorter, the moderate powder of particle after secondary sorting settles down and enters into ultrasonic wave vibratory sieve through baiting valve, under mechanical oscillation and the vibration of ultrasonic wave acting in conjunction that sends, powder is through screen cloth, a small amount of coarse granule powder residual in pneumatic separation removed by screen cloth, and a small amount of coarse granule powder sorted out enters the second collecting vessel; (3) powder of major part after screen cloth enters among electrostatic impurity removed system, is carried out screening in the different accumulated powder bucket of inflow by different powders through HV generator.
The present invention is integrated with pneumatic separation, ultrasonic wave vibrates the function of sorting and high-pressure electrostatic removal of impurities, greatly reduce technological process, the efficiency of separation is high, avoids the transport between different operating link and cost of labor, more avoids the pollution to powder between link simultaneously.The uniform particles of high-quality metal-powder after pneumatic separation, ultrasonic wave vibration sorting and high-pressure electrostatic removal of impurities, good fluidity, powder uniformity is high, and greatly reduces nonmetal inclusion and fully meet aviation and space flight demand.
Accompanying drawing explanation
Fig. 1 is Facad structure schematic diagram of the present invention.
Fig. 2 is the structural representation of electrostatic impurity removed system of the present invention.
Detailed description of the invention
Below in conjunction with specific embodiment, set forth the present invention further.
A kind of device preparing high-quality iron-based 3D printing powder as shown in Figure 1, the bottom comprising one-level sorter 1 and secondary sorter 2, two sorters arranges the first collecting vessel 7 and the second collecting vessel 8 respectively.Secondary sorter connects bag-type dust collector 3 and air-introduced machine 4, secondary sorter bottom connects ultrasonic wave vibration separation system, ultrasonic wave vibration separation system is connected with electrostatic impurity removed system 12 again, two sorters is arranged respectively the first baiting valve 5 and the second baiting valve 6.Ultrasonic wave vibration separation system comprises ultrasonic wave vibratory sieve 9, supersonic generator 10 and screen cloth 11.
As shown in Figure 2, electrostatic impurity removed system 12 comprises transfer roller 13, and the side of transfer roller arranges powered brush 14, and the side of transfer roller arranges high-pressure electrostatic generator 15, and the bottom of transfer roller arranges sorting accumulated powder bucket 16.
Preparation process of the present invention is as follows: enter into one-level sorter through feeding mouth, thicker particle enters into collecting vessel through baiting valve, thinner powder is sucked in secondary sorter, the moderate powder of particle after secondary sorting settles down and enters into ultrasonic wave vibratory sieve through baiting valve, under mechanical oscillation and the vibration of ultrasonic wave acting in conjunction that sends, powder is through screen cloth, screen cloth is herein mainly used in removing a small amount of coarse granule powder residual in pneumatic separation, the a small amount of coarse granule powder sorted out enters accumulated powder bucket, the powder of major part after screen cloth enters among electrostatic impurity removed system.
As shown in Figure 2, the powder entered among electrostatic removal of impurities slowly flow on transfer roller electrostatic impurity removed system structure, and the rotation along with roller enters among the electrostatic field of HV generator generation; Materials variances due to metal-powder and non-metallic powder self can bring the electrostatic charge of inequality in the electric field; thus metal-powder can produce notable difference with non-metallic powder running orbit in the electric field, distinguish when the track of landing roller does not coexist and enters into collecting vessel according to powder: metal powder, neutrophil granule and nonmetal inclusion.The metal powder particle eventually passed through in after sorting removal of impurities namely may be used for the metal-powder of the high-cleanness, high that 3D prints.
Should be understood that these embodiments are only not used in for illustration of the present invention to limit the scope of the invention.In addition should be understood that those skilled in the art can make various changes or modifications the present invention, and these equivalent form of values fall within the application's appended claims limited range equally after the content of having read the present invention's instruction.
Claims (7)
1. prepare the device of high-quality iron-based 3D printing powder for one kind, it is characterized in that comprising the sorter of at least two-stage, the sorter of afterbody connects dust arrester and air-introduced machine, the sorter bottom of described afterbody connects ultrasonic wave vibration separation system, and described ultrasonic wave vibration separation system is connected with electrostatic impurity removed system again.
2. a kind of device preparing high-quality iron-based 3D printing powder according to claim 1, it is characterized in that described electrostatic impurity removed system comprises transfer roller, the side of described transfer roller arranges high-pressure electrostatic generator, and the bottom of described transfer roller arranges multiple accumulated powder bucket.
3. a kind of device preparing high-quality iron-based 3D printing powder according to claim 2, is characterized in that the opposite side of described transfer roller arranges powered brush.
4. a kind of device preparing high-quality iron-based 3D printing powder according to claim 1, is characterized in that described ultrasonic wave vibration separation system comprises ultrasonic wave vibratory sieve, supersonic generator and screen cloth.
5. a kind of device preparing high-quality iron-based 3D printing powder according to claim 1 or 4, it is characterized in that described sorter comprises one-level sorter and secondary sorter, the bottom of two sorters arranges the first collecting vessel and the second collecting vessel respectively.
6. a kind of device preparing high-quality iron-based 3D printing powder according to claim 5, is characterized in that described two sorters arrange baiting valve respectively.
7. prepare the technique of high-quality iron-based 3D printing powder for one kind, it is characterized in that being prepared by device according to claim 6, process is as follows: (1) metal-powder enters into one-level sorter through feeding mouth, and thicker particle enters into the first collecting vessel through baiting valve; (2) thinner powder is sucked in secondary sorter, the moderate powder of particle after secondary sorting settles down and enters into ultrasonic wave vibratory sieve through baiting valve, under mechanical oscillation and the vibration of ultrasonic wave acting in conjunction that sends, powder is through screen cloth, a small amount of coarse granule powder residual in pneumatic separation removed by screen cloth, and a small amount of coarse granule powder sorted out enters the second collecting vessel; (3) powder of major part after screen cloth enters among electrostatic impurity removed system, is carried out screening in the different accumulated powder bucket of inflow by different powders through HV generator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510340929.3A CN104907255A (en) | 2015-06-18 | 2015-06-18 | Device and technology for preparing powder used for high-quality iron-based 3D printing |
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| CN201510340929.3A CN104907255A (en) | 2015-06-18 | 2015-06-18 | Device and technology for preparing powder used for high-quality iron-based 3D printing |
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| CN104907255A true CN104907255A (en) | 2015-09-16 |
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| CN201510340929.3A Pending CN104907255A (en) | 2015-06-18 | 2015-06-18 | Device and technology for preparing powder used for high-quality iron-based 3D printing |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112090751A (en) * | 2020-08-26 | 2020-12-18 | 西安欧中材料科技有限公司 | Device for removing flaky powder and impurities |
| CN113182182A (en) * | 2021-05-08 | 2021-07-30 | 湖南杰瑞精密陶瓷有限公司 | Method and device for automatically screening and mixing ceramic powder |
| CN113967539A (en) * | 2021-10-22 | 2022-01-25 | 浙江亚通焊材有限公司 | High-quality iron-based 3D prints preparation system of powder |
| CN114273231A (en) * | 2021-12-24 | 2022-04-05 | 浙江亚通焊材有限公司 | Preparation high-quality iron-based 3D prints classification and screening system of powder |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112090751A (en) * | 2020-08-26 | 2020-12-18 | 西安欧中材料科技有限公司 | Device for removing flaky powder and impurities |
| CN113182182A (en) * | 2021-05-08 | 2021-07-30 | 湖南杰瑞精密陶瓷有限公司 | Method and device for automatically screening and mixing ceramic powder |
| CN113967539A (en) * | 2021-10-22 | 2022-01-25 | 浙江亚通焊材有限公司 | High-quality iron-based 3D prints preparation system of powder |
| CN114273231A (en) * | 2021-12-24 | 2022-04-05 | 浙江亚通焊材有限公司 | Preparation high-quality iron-based 3D prints classification and screening system of powder |
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Application publication date: 20150916 |