CN107901419A - A kind of method for making annealing treatment regulation and control PA3200 3D printing surface of shaped parts wetabilitys - Google Patents
A kind of method for making annealing treatment regulation and control PA3200 3D printing surface of shaped parts wetabilitys Download PDFInfo
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- CN107901419A CN107901419A CN201711390204.0A CN201711390204A CN107901419A CN 107901419 A CN107901419 A CN 107901419A CN 201711390204 A CN201711390204 A CN 201711390204A CN 107901419 A CN107901419 A CN 107901419A
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- annealing
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- 238000000034 method Methods 0.000 title claims abstract description 46
- 238000000137 annealing Methods 0.000 title claims abstract description 43
- 238000010146 3D printing Methods 0.000 title claims abstract description 35
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000012298 atmosphere Substances 0.000 claims abstract description 12
- 238000000110 selective laser sintering Methods 0.000 claims abstract description 11
- 238000005516 engineering process Methods 0.000 claims abstract description 9
- 238000002791 soaking Methods 0.000 claims abstract description 9
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000001301 oxygen Substances 0.000 claims abstract description 7
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 7
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 4
- 238000013461 design Methods 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 239000002904 solvent Substances 0.000 claims description 3
- 229910021642 ultra pure water Inorganic materials 0.000 claims description 3
- 239000012498 ultrapure water Substances 0.000 claims description 3
- 230000010148 water-pollination Effects 0.000 abstract description 3
- 238000007493 shaping process Methods 0.000 description 8
- 238000000465 moulding Methods 0.000 description 5
- 239000000203 mixture Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000000149 argon plasma sintering Methods 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000005660 hydrophilic surface Effects 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 230000005661 hydrophobic surface Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 210000003437 trachea Anatomy 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C71/00—After-treatment of articles without altering their shape; Apparatus therefor
- B29C71/02—Thermal after-treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C71/00—After-treatment of articles without altering their shape; Apparatus therefor
- B29C71/0009—After-treatment of articles without altering their shape; Apparatus therefor using liquids, e.g. solvents, swelling agents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y40/00—Auxiliary operations or equipment, e.g. for material handling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C71/00—After-treatment of articles without altering their shape; Apparatus therefor
- B29C71/0009—After-treatment of articles without altering their shape; Apparatus therefor using liquids, e.g. solvents, swelling agents
- B29C2071/0045—Washing using non-reactive liquids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C71/00—After-treatment of articles without altering their shape; Apparatus therefor
- B29C71/02—Thermal after-treatment
- B29C2071/022—Annealing
Landscapes
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
Abstract
A kind of method for making annealing treatment regulation and control PA3200 3D printing surface of shaped parts wetabilitys, belongs to 3D printing technique and medical application fields.The present invention utilizes 3D printing selective laser sintering technology (Selective Laser Sintering, SLS PA3200 3D printing molded parts) are prepared, annealed using tube type vacuum stove to molded part, the tube furnace has easy to operate, high accuracy temperature control, the advantages that working under multiple atmosphere.When the setting heating-up time 13 is small, when soaking time 15 is small, when temperature fall time 13 is small, 160 DEG C of annealing temperature 100 DEG C, the parameter such as annealing atmosphere oxygen, nitrogen makes annealing treatment molded part.After annealing, the contact angle of surface of shaped parts is changed into 60 ° from 121 °, surface wettability is changed into hydrophily by hydrophobicity, Effective Regulation 3200 3D printing surface of shaped parts wetabilitys of PA.
Description
Technical field
The present invention relates to 3D printing technique and medical application fields, particularly devise a kind of annealing regulation and control PA3200
The method of 3D printing surface of shaped parts wetability.
Background technology
PA3200 be it is a kind of by micro-meter scale bead filling PA2200 white powder, have excellent mechanical performance and
Biocompatibility.At present, the main molding mode of PA3200 is 3D printing selective laser sintering (SLS) technology.SLS is that one kind makes
Little particle (polymer, ceramics) is successively sintered into the rapid shaping technique of entity with high power laser light, it is fast with shaping speed,
The features such as precision is high.Excellent mechanical performance and life are had based on the molding PA3200 3D printings molded part of 3D printing SLS technologies
Thing compatibility, there is huge application prospect, including suture, trachea bracket, passage, conduit etc. in medical field.It is applied to
The element of medical field need to have good biocompatibility, it is desirable to which element surface is smooth, and hydrophily is presented in wetability.But base
Hydrophobicity is presented in the molding PA3200 3D printings surface of shaped parts wetability of SLS technologies, this is serious to limit it in medical treatment
Application in field.Therefore, it is necessary to be surface-treated to PA3200 3D printing molded parts, regulate and control its surface wettability, be allowed to
Reach the requirement of medical field application.
At present, the method for being surface-treated regulation and control wetability for PA classes elements material mainly has：
1. plasma processing method：This method is mainly contacted using the air-flow of upper state with surface of shaped parts, causes table
Face pattern and chemical composition change, so as to achieve the purpose that to regulate and control wetability.For PA class materials, the air-flow master of upper state
If nitrogen and oxygen plasma.Although the method can efficiently realize the regulation and control to surface of shaped parts wetability, also can be right
The feature on surface impacts.
2. surface coated treatment method：This method mainly prepares one layer of hydrophobic or hydrophilic coating in surface of shaped parts,
Coating is adhered to surface, achievees the purpose that to regulate and control wetability.The method very effective can realize regulation and control surface of shaped parts
Wetability, but coating is unstable, easily comes off.
3. laser radiation treatment method：This method handles surface of shaped parts using the high-energy of laser, makes the table of molded part
Face pattern changes with chemical composition, so as to achieve the purpose that to regulate and control surface of shaped parts wetability.The method can be quick, has
The realization regulation and control PA class surface of shaped parts wetabilitys of effect, but PA3200 is directed to, laser irradiation fails the change for causing surface wettability
Change.
4. the method for annealing：This method for a period of time, then slowly cools down again mainly by molded part High temperature storage,
Surface of shaped parts pattern and chemical composition is caused to change so as to achieve the purpose that to regulate and control its wetability during this.This side
Method can effectively realize the surface wettability of regulation and control PA class molded parts, and easy to operate, and flow is simple.It is several compared to other
Method, its advantage essentially consist in the annealing temperature that can accurately control under different atmosphere, so as to reach accuracy controlling molded part table
The purpose of face wetability, and not yet occur at present for the wetability for making annealing treatment regulation and control PA3200 3D printing molded parts
Relevant report.
Therefore, the present invention is using the wetability of annealing method regulation and control PA3200 3D printing surface of shaped parts, this method stream
Journey is simple, can effectively realize the regulation and control of the wetability to PA3200 3D printing surface of shaped parts.
The content of the invention
The object of the present invention is to provide a kind of side for making annealing treatment regulation and control PA3200 3D printing surface of shaped parts wetabilitys
Method.
What the purpose of the present invention was achieved through the following technical solutions：
1) PA3200 3D printing molded parts are prepared using 3D printing SLS technologies, are dipped in alcohol solvent cleaning afterwards,
It is subsequently dipped to be cleaned by ultrasonic in ultra-pure water, is finally putting into drying box and dries, sample is prepared and completed；
2) parameters such as the heating-up time in annealing process, soaking time, temperature fall time, annealing temperature, atmosphere are designed, are set
The program of annealing furnace, after it is ready to complete, is placed in the 3D printing molded part completed is handled through step 1) in stove；
3) vacuum tube furnace is used, when heating-up time 1-3 is small in annealing process, when soaking time 1-5 is small, temperature fall time 1-
3 it is small when, 100 DEG C -160 DEG C of annealing temperature, annealing atmosphere is oxygen or nitrogen；
The present invention is to utilize the heating made annealing treatment under different atmosphere, insulation, temperature-fall period, makes surface of shaped parts pattern
Change with chemical composition, realize the purpose of regulation and control PA3200 3D printing surface of shaped parts wetabilitys.Not yet move back at present
The method of the wetability of fire processing regulation and control PA3200 3D printing molded parts.This method has obvious innovative：
1) material that this method uses is PA3200, its forming technique is using 3D printing precinct laser sintering (SLS)
Technology；
2) this method uses tube type vacuum stove, which has easy to operate, high accuracy temperature control, work under multiple atmosphere
The advantages that.When heating-up time 1-3 is small in annealing process, when soaking time 1-5 is small, when temperature fall time 1-3 is small, annealing temperature
100℃-160℃；
3) this method carries out under oxygen or nitrogen atmosphere, is printed as by controlling annealing temperature to regulate and control PA32003D
The surface wettability of type part, whole set process is easy to operate, and flow is simple.
Brief description of the drawings
Fig. 1 is the 3D shapings of annealing regulation and control PA3200 3D printing surface of shaped parts wetability methods of the present invention
Part surface wettability variation diagram (wetability is characterized with contact angle)
Embodiment
The specific embodiment of the invention is described in further details below in conjunction with the accompanying drawings：
The first step：PA3200 3D printing molded parts are prepared using 3D printing SLS technologies
This step is intended to the excellent PA3200 3D printing molded parts of processability, can be divided into and prepare data, shaping, rear place
Manage three processes：
1) data are prepared：This process mainly establishes molded part threedimensional model using magics softwares and saves as STL (3D is beaten
Stamp type professional format) form, the model having been had built up afterwards using rapid section software RP Tools sections, will then cut
Piece file is imported in PSW 3.7 software of machine operation (this in order to control), is saved as with section and elevation information
.eosjz file, finally by this file copy into 3.7 softwares of printer EOS P396 machine computers PSW, loading, this
To prepare data procedures；
2) it is molded：This process primary operational EOS P396 machines carry out the shaping of molded part, prepare moulding cylinder before being molded, will
Moulding cylinder rises to pre- powdering 9mm after highest, and preheat powder bed 2 it is small when, machine can be under software control according to shaping afterwards
The cross section information of every layer of part carries out successively sintering process, is 0.12mm per layer thickness, until whole molded part is completed；
3) post-process：This process mainly takes out molded part and carries out the cleaning of surface powder.After the completion of shaping, due to shaping
Cylinder temperature is higher, and natural cooling 10 can be taken off when small.Surface of shaped parts and internal dust are cleared up using high pressure air rifle afterwards,
Alcohol solvent cleaning is then dipped in, is subsequently dipped to be cleaned by ultrasonic in ultra-pure water, is finally putting into drying box and dries, sample is
Post processing is completed.
Second step：Annealing parameter is designed, is made annealing treatment
According to the fusing point of PA3200 and the heating-up time of pertinent literature investigation design annealing, soaking time, during cooling
Between, temperature, the parameter such as atmosphere, design parameter for heating-up time 1-3 it is small when, when soaking time 1-5 is small, when temperature fall time 1-3 is small,
100 DEG C -160 DEG C of annealing temperature, annealing atmosphere are oxygen or nitrogen.Afterwards by the ready PA3200 3D printings of previous step
Molded part is placed in tube type vacuum stove, then operates annealing furnace, will be vacuumized in stove and oxygen or nitrogen are filled with stove, is checked
The closure and circulation of whole gas circuit；Annealing furnace program is finally set according to above-mentioned parameter, proceeds by annealing.
3rd step：Surface wettability detects
Refering to Fig. 1, the surface wettability of molded part is characterized by contact angle, and contact angle is less than 90 °, and surface presents hydrophilic
Property, for contact angle more than 90 °, hydrophobicity is presented in surface, and contact angle is detected with OCA20 contact angle measurements.Without stepping back
121 ° of the surface of shaped parts contact angle of processing, is presented hydrophobic surface, and the surface of shaped parts contact angle by annealing is reachable
60 °, hydrophilic surface is presented.This result shows that, annealing can realize regulation and control PA3200 3D printings surface of shaped parts wetting
Property, surface of shaped parts wetability is changed into hydrophily from hydrophobicity.
Claims (2)
- A kind of 1. method for making annealing treatment regulation and control PA3200 3D printing surface of shaped parts wetabilitys, it is characterised in that this method bag Include following steps：1) PA3200 3D printing molded parts are prepared using 3D printing selective laser sintering technology, molded part is immersed into ethanol afterwards Solvent cleans, and is subsequently dipped to be cleaned by ultrasonic in ultra-pure water, is finally putting into drying box and dries, and sample is prepared and completed；2) heating-up time in design annealing process, soaking time, temperature fall time, annealing temperature, atmosphere, set the journey of annealing furnace Sequence, after it is ready to complete, is placed in the 3D printing molded part completed is handled through step 1) in stove；3) tube type vacuum stove is used, when heating-up time 1-3 is small in annealing process, when soaking time 1-5 is small, temperature fall time 1-3 is small When, 100 DEG C -160 DEG C of annealing temperature, annealing atmosphere is oxygen or nitrogen.
- 2. the method for annealing regulation and control PA3200 3D printing surface of shaped parts wetabilitys according to claim 1, it is special Sign is by controlling the heating-up time, soaking time, temperature fall time, annealing temperature, atmosphere one or several, regulate and control molded part Surface wettability.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711390204.0A CN107901419B (en) | 2017-12-21 | 2017-12-21 | A method of annealing regulation PA3200 3D printing surface of shaped parts wetability |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711390204.0A CN107901419B (en) | 2017-12-21 | 2017-12-21 | A method of annealing regulation PA3200 3D printing surface of shaped parts wetability |
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| Publication Number | Publication Date |
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| CN107901419A true CN107901419A (en) | 2018-04-13 |
| CN107901419B CN107901419B (en) | 2019-09-27 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102796909A (en) * | 2012-01-31 | 2012-11-28 | 重庆润泽医药有限公司 | Method for preparing porous tantalum medical implant material through three-dimensional printing forming |
| CN103740963A (en) * | 2012-01-31 | 2014-04-23 | 重庆润泽医药有限公司 | Method for preparing porous tantalum medical implant material by selective laser sintering formation |
| CN103785835A (en) * | 2014-03-04 | 2014-05-14 | 山东大学 | Manufacturing method for preventing deforming and cracking when large-size complex titanium alloy parts are in three-dimensional printing |
| US9592530B2 (en) * | 2012-11-21 | 2017-03-14 | Stratasys, Inc. | Additive manufacturing with polyamide consumable materials |
| CN107073825A (en) * | 2014-10-29 | 2017-08-18 | 惠普发展公司，有限责任合伙企业 | Three-dimensional (3D) Method of printing |
-
2017
- 2017-12-21 CN CN201711390204.0A patent/CN107901419B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102796909A (en) * | 2012-01-31 | 2012-11-28 | 重庆润泽医药有限公司 | Method for preparing porous tantalum medical implant material through three-dimensional printing forming |
| CN103740963A (en) * | 2012-01-31 | 2014-04-23 | 重庆润泽医药有限公司 | Method for preparing porous tantalum medical implant material by selective laser sintering formation |
| US9592530B2 (en) * | 2012-11-21 | 2017-03-14 | Stratasys, Inc. | Additive manufacturing with polyamide consumable materials |
| CN103785835A (en) * | 2014-03-04 | 2014-05-14 | 山东大学 | Manufacturing method for preventing deforming and cracking when large-size complex titanium alloy parts are in three-dimensional printing |
| CN107073825A (en) * | 2014-10-29 | 2017-08-18 | 惠普发展公司，有限责任合伙企业 | Three-dimensional (3D) Method of printing |
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| CN107901419B (en) | 2019-09-27 |
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Application publication date: 20180413 Assignee: Luoyang Jingrui Industrial Technology Co.,Ltd. Assignor: Beijing University of Technology Contract record no.: X2024980000080 Denomination of invention: A method of annealing treatment to regulate the surface wettability of PA3200 3D printed molded parts Granted publication date: 20190927 License type: Common License Record date: 20240104 |
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Application publication date: 20180413 Assignee: LUOYANG GUANGWEI PRECISION TECHNOLOGY CO.,LTD. Assignor: Beijing University of Technology Contract record no.: X2023990001023 Denomination of invention: A method of annealing treatment to regulate the surface wettability of PA3200 3D printed molded parts Granted publication date: 20190927 License type: Common License Record date: 20240109 |
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