CN104190933B - A kind of preparation method of laser fast shaping rhenium jet pipe - Google Patents
A kind of preparation method of laser fast shaping rhenium jet pipe Download PDFInfo
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- CN104190933B CN104190933B CN201410457541.7A CN201410457541A CN104190933B CN 104190933 B CN104190933 B CN 104190933B CN 201410457541 A CN201410457541 A CN 201410457541A CN 104190933 B CN104190933 B CN 104190933B
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- powder
- laser
- jet pipe
- rhenium
- sintering
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- WUAPFZMCVAUBPE-UHFFFAOYSA-N Rhenium Chemical compound [Re] WUAPFZMCVAUBPE-UHFFFAOYSA-N 0.000 title claims abstract description 22
- 229910052702 rhenium Inorganic materials 0.000 title claims abstract description 22
- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- 238000007493 shaping process Methods 0.000 title claims abstract description 9
- 239000000843 powder Substances 0.000 claims abstract description 23
- 238000005245 sintering Methods 0.000 claims abstract description 15
- 239000000853 adhesive Substances 0.000 claims abstract description 9
- 230000001070 adhesive Effects 0.000 claims abstract description 9
- 239000011812 mixed powder Substances 0.000 claims abstract description 9
- 230000001681 protective Effects 0.000 claims abstract description 9
- 239000000203 mixture Substances 0.000 claims abstract description 4
- 239000007789 gas Substances 0.000 claims description 10
- 238000003892 spreading Methods 0.000 claims description 8
- XKRFYHLGVUSROY-UHFFFAOYSA-N argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- 238000000465 moulding Methods 0.000 claims description 5
- 239000002245 particle Substances 0.000 claims description 5
- 229910052786 argon Inorganic materials 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000005755 formation reaction Methods 0.000 claims description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 2
- 239000001257 hydrogen Substances 0.000 claims description 2
- 229910052739 hydrogen Inorganic materials 0.000 claims description 2
- 238000000110 selective laser sintering Methods 0.000 claims 1
- 238000010923 batch production Methods 0.000 abstract description 2
- 238000000149 argon plasma sintering Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 229910001182 Mo alloy Inorganic materials 0.000 description 4
- ZOKXTWBITQBERF-UHFFFAOYSA-N molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 4
- 239000011733 molybdenum Substances 0.000 description 4
- 229910052750 molybdenum Inorganic materials 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 238000000227 grinding Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 210000001624 Hip Anatomy 0.000 description 2
- 238000005238 degreasing Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 206010019332 Heat exhaustion Diseases 0.000 description 1
- 229920002521 Macromolecule Polymers 0.000 description 1
- 229910019571 Re2O7 Inorganic materials 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003628 erosive Effects 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Abstract
The present invention provides the preparation method of a kind of laser fast shaping rhenium jet pipe, it is characterized in that comprising the following steps: (1) uses CAD design jet pipe three-dimensional entity model, model slice is processed to obtain multilamellar two dimensional cross-section, save as stl file, transfer data to laser sintering rapid forming system；(2) Re powder is uniformly mixed with organic adhesive put into powder cylinder；(3) it is passed through protective gas；(4) layer overlay mixed-powder on work top, warm operation platform；(5) the design scanning speed of laser, sintering temperature etc., control laser and are sintered according to ground floor cross section information；(6) workbench declines certain altitude, continues paving powder, starts new round scanning sintering；(7) step 6 is constantly repeated, until being piled into Three-dimensional Entity Components；(8) high-temperature roasting.This method height Integration ofTechnology, the process-cycle is short, it is not necessary to mould, can realize batch production, uses protection gas to avoid powder body oxidized, and the jet pipe prepared has the combination property of excellence.
Description
Technical field
The present invention relates to the preparation method of a kind of jet pipe, particularly relate to the preparation side of a kind of laser fast shaping rhenium jet pipe
Method.
Technical background
Jet pipe is by changing the geometry of pipeline section inwall a kind of device with acceleration air-flow, being used for aircraft, rocket
Deng aerospace field, the rigorous service condition of usual jet pipe, under the conditions of non-cooled, jet pipe directly to bear 2500～3600
DEG C high temperature, 4～7MPa high pressure and the high speed of 1500～2500m/s, and need to bear containing the washing away of solid particles combustion gas, invade
Erosion effect, thus high to the performance requirement of material, do not require nothing more than material bearing capacity and by force and require that heat resistance is strong.Re
(rhenium), as conventional aeronautical material, has higher elastic modelling quantity, excellent tensile strength, creep limit, creep rupture strength and resists
Thermal shock ability, from room temperature to 2227 DEG C, can stand 105Secondary above heat exhaustion circulates and did not lost efficacy, but rhenium easily aoxidizes shape
Become Re2O7Make rhenium brittle.
The Chinese patent of Application No. 200810233086.7 discloses the preparation method of a kind of rocket tube, it
Comprise the following steps: (1) prepares the blank of described rocket tube and prepares the plug of described blank；(2) at described core
After rod surface spraying coating, the surface of plug is carried out grinding, and carries out joining car by the plug after grinding and described blank；
(3) plug after grinding is equipped with on press with described blank；Then the entirety assembled is carried out jacket process；(4) will
The entirety that jacket is handled well carries out hip treatment in high temperature insostatic pressing (HIP) stove；(5), after hip treatment, sheath material is removed
And plug, then the jet pipe blank of adhering coating is carried out polish obtain product of the present invention.This inventive method is applicable not only to endoporus
Larger-size jet pipe, and it is less and have the jet pipe of particular/special requirement to coating to be applicable to hole size.
The Chinese patent of Application No. 200810031043.0 discloses one powder injection forming method and prepares shape
Extremely complex molybdenum or molybdenum alloy jet pipe, by molybdenum powder or molybdenum alloy powder and a kind of by paraffin-oil-low molecule couplant-macromolecule
The Multi-component binder of polymer composition is mixed with uniformly feeding, and feeding injects in injector molybdenum or molybdenum alloy
Jet pipe injection base, carries out solvent degreasing by injection base, and control solvent debinding rate is 50%～65%, and solvent degreasing base is then in warm
Debinding furnace carries out defat pre-burning, finally the sample after thermal debinding pre-burning is carried out high temperature sintering, prepared molybdenum jet pipe or molybdenum
Alloy jet pipe is without deformation, and stable performance.
Both the above invention can prepare dystectic jet pipe, but it is oxidized to cannot be avoided powder in preparation process,
So that the material fragility prepared increases；Preparation process needs mould, and working (machining) efficiency is low.
Summary of the invention
The purpose of the present invention is intended to overcome the deficiencies in the prior art, it is provided that the preparation side of a kind of laser fast shaping rhenium jet pipe
Method, it is characterised in that comprise the following steps:
(1) design the three-dimensional entity model of jet pipe with CAD drawing software, and by discrete program, model is carried out at section
Manage to obtain the multilayer two-dimension section of physical model, and save as stl file, the data of stl file are sent to selective laser and burn
Knot rapid prototyping system；
(2) uniformly being mixed with organic adhesive by Re (rhenium) powder and put into the powder cylinder of 3D printer, organic adhesive accounts for mixed
The 10%～20% of compound total amount；
(3) in the moulding cylinder of 3D printer, it is passed through protective gas；
(4) it is the mixed-powder of 0.08～0.3mm with powder-laying roller uniform spreading last layer thickness on work top, pre-thermal technology
Station is to 100～200 DEG C；
(5) design laser scanning speed be 20～200mm/s, sintering temperature is 300～350 DEG C, control laser according to
The ground floor cross section information of design elements carries out selective sintering；
(6) under the control of the computer, work platforms declines certain altitude, continues uniform spreading last layer thickness with powder-laying roller and is
The mixed-powder of 0.08～0.3mm, laser beam starts the scanning sintering of a new round；
(7) system constantly repeats step 6, until being piled into Three-dimensional Entity Components；
(8) entity component, roasting 3～5h under 1000～1200 DEG C of high temperature are taken out.
The purity of described Re (rhenium) powder is 99%～99.999%, and particle diameter is 50 mesh to 500 mesh, and the wall thickness of rhenium jet pipe is
2～5mm；Protective gas is nitrogen, hydrogen or argon.
Advantages of the present invention:
(1) preparation process height Integration ofTechnology, it is achieved that the integration designing and manufacturing, the process-cycle is short, low cost, effect
Rate is high, it is not necessary to mould, simple to operate, can realize batch production.
(2) using protection gas to avoid powder body in preparation process oxidized, the jet pipe prepared has the combination property of excellence.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of laser fast shaping technique
10 reflective rollers；20 powder-laying rollers；30 positive formation parts；40 unformed powder；50 moulding cylinders；60 powder cylinders.
Detailed description of the invention
Below in conjunction with specific embodiment, it is further elucidated with the present invention, it should be understood that these embodiments are merely to illustrate the present invention
Rather than restriction the scope of the present invention, after having read the present invention, the those skilled in the art's various equivalences to the present invention
The amendment of form all falls within the application claims and is limited.
Embodiment 1
The preparation method of a kind of laser fast shaping rhenium jet pipe, it is characterised in that comprise the following steps:
(1) design the three-dimensional entity model of jet pipe with CAD drawing software, and by discrete program, model is carried out at section
Manage to obtain the multilayer two-dimension section of physical model, and save as stl file, the data of stl file are sent to selective laser and burn
Knot rapid prototyping system；
(2) uniformly being mixed with organic adhesive by Re (rhenium) powder and put into the powder cylinder of 3D printer, organic adhesive accounts for mixed
The 10% of compound total amount；
(3) in the moulding cylinder of 3D printer, it is passed through protective gas；
(4) it is the mixed-powder of 0.08mm with powder-laying roller uniform spreading last layer thickness on work top, warm operation platform
To 100 DEG C；
(5) scanning speed of design laser is 20mm/s, and sintering temperature is 300 DEG C, controls laser according to design elements
Ground floor cross section information carries out selective sintering；
(6) under the control of the computer, work platforms declines certain altitude, continues uniform spreading last layer thickness with powder-laying roller and is
The mixed-powder of 0.08mm, laser beam starts the scanning sintering of a new round；
(7) system constantly repeats step 6, until being piled into Three-dimensional Entity Components；
(8) entity component, roasting 3h under 1000 DEG C of high temperature are taken out.
The purity of Re (rhenium) powder is 99%, and particle diameter is 50 mesh；The wall thickness of rhenium jet pipe is 2mm；Protective gas is nitrogen.
Embodiment 2
The preparation method of a kind of laser fast shaping rhenium jet pipe, it is characterised in that comprise the following steps:
(1) design the three-dimensional entity model of jet pipe with CAD drawing software, and by discrete program, model is carried out at section
Manage to obtain the multilayer two-dimension section of physical model, and save as stl file, the data of stl file are sent to selective laser and burn
Knot rapid prototyping system；
(2) uniformly being mixed with organic adhesive by Re (rhenium) powder and put into the powder cylinder of 3D printer, organic adhesive accounts for mixed
The 20% of compound total amount；
(3) in the moulding cylinder of 3D printer, it is passed through protective gas；
(4) being the mixed-powder of 0.3mm with powder-laying roller uniform spreading last layer thickness on work top, warm operation platform is extremely
200℃；
(5) scanning speed of design laser is 200mm/s, and sintering temperature is 350 DEG C, controls laser according to design elements
Ground floor cross section information carries out selective sintering；
(6) under the control of the computer, work platforms declines certain altitude, continues uniform spreading last layer thickness with powder-laying roller and is
The mixed-powder of 0.3mm, laser beam starts the scanning sintering of a new round；
(7) system constantly repeats step 6, until being piled into Three-dimensional Entity Components；
(8) entity component, roasting 5h under 1200 DEG C of high temperature are taken out.
The purity of Re (rhenium) powder is 99.999%, and particle diameter is 500 mesh；The wall thickness of rhenium jet pipe is 5mm；Protective gas is argon
Gas.
Above are only two detailed description of the invention of the present invention, but the design concept of the present invention is not limited thereto, all profits
With this design, the present invention is carried out the change of unsubstantiality, the behavior invading the scope of protection of the invention all should be belonged to.In every case it is
Without departing from the content of technical solution of the present invention, any type of letter above example made according to the technical spirit of the present invention
Single amendment, equivalent variations and remodeling, still fall within the protection domain of technical solution of the present invention.
Claims (3)
1. the preparation method of a laser fast shaping rhenium jet pipe, it is characterised in that comprise the following steps:
(1) design the three-dimensional entity model of jet pipe with CAD drawing software, and by discrete program, model is carried out slicing treatment and obtain
The multilayer two-dimension section of physical model, and save as stl file, the data of stl file are sent to selective laser sintering fast
Speed formation system；
(2) uniformly being mixed with organic adhesive by Re (rhenium) powder and put into the powder cylinder of 3D printer, organic adhesive accounts for mixture
The 10%～20% of total amount；
(3) in the moulding cylinder of 3D printer, it is passed through protective gas；
(4) it is the mixed-powder of 0.08～0.3mm with powder-laying roller uniform spreading last layer thickness on work top, warm operation platform
To 100～200 DEG C；
(5) scanning speed of design laser is 20～200mm/s, and sintering temperature is 300～350 DEG C, controls laser according to design
The ground floor cross section information of part carries out selective sintering；
(6) under the control of the computer, work platforms declines certain altitude, and continuing uniform spreading last layer thickness with powder-laying roller is 0.08
～the mixed-powder of 0.3mm, laser beam starts the scanning sintering of a new round；
(7) system constantly repeats step 6, until being piled into Three-dimensional Entity Components；
(8) entity component, roasting 3～5h under 1000～1200 DEG C of high temperature are taken out.
Preparation method the most according to claim 1, it is characterised in that the purity of described Re (rhenium) powder be 99%～
99.999%, particle diameter is that 50 mesh are to 500 mesh.
Preparation method the most according to claim 1, it is characterised in that described protective gas is nitrogen, hydrogen or argon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410457541.7A CN104190933B (en) | 2014-09-10 | A kind of preparation method of laser fast shaping rhenium jet pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410457541.7A CN104190933B (en) | 2014-09-10 | A kind of preparation method of laser fast shaping rhenium jet pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104190933A CN104190933A (en) | 2014-12-10 |
| CN104190933B true CN104190933B (en) | 2017-01-04 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108709198A (en) * | 2018-06-06 | 2018-10-26 | 苏州宏久航空防热材料科技有限公司 | A kind of preparation method of 3D printing SiC core materials and high-densit vitreous carbon encapsulation combustion chamber |
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|---|---|---|---|---|
| EP0606627A1 (en) * | 1993-01-15 | 1994-07-20 | Stratasys Inc. | Method and apparatus employing sequential two-dimensional geometry for producing shells for fabrication by a rapid prototyping system |
| CN1861296A (en) * | 2006-06-14 | 2006-11-15 | 华中科技大学 | Method for near-purification formation of parts |
| CN101254537A (en) * | 2008-04-11 | 2008-09-03 | 中南大学 | Method for preparing molybdenum and molybdenum alloys effuser by powder injection forming |
| CN101733614A (en) * | 2008-11-20 | 2010-06-16 | 中国兵器工业第五九研究所 | Method for preparing rocket engine jet pipe and special equipment thereof |
| CN101780544A (en) * | 2010-01-15 | 2010-07-21 | 黑龙江科技学院 | Method for forming refractory metal parts by using laser |
| CN103695681A (en) * | 2013-12-18 | 2014-04-02 | 湖南航天工业总公司 | Forming device and method of aluminum-based silicon carbide particle reinforced composite material and member thereof |
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0606627A1 (en) * | 1993-01-15 | 1994-07-20 | Stratasys Inc. | Method and apparatus employing sequential two-dimensional geometry for producing shells for fabrication by a rapid prototyping system |
| CN1861296A (en) * | 2006-06-14 | 2006-11-15 | 华中科技大学 | Method for near-purification formation of parts |
| CN101254537A (en) * | 2008-04-11 | 2008-09-03 | 中南大学 | Method for preparing molybdenum and molybdenum alloys effuser by powder injection forming |
| CN101733614A (en) * | 2008-11-20 | 2010-06-16 | 中国兵器工业第五九研究所 | Method for preparing rocket engine jet pipe and special equipment thereof |
| CN101780544A (en) * | 2010-01-15 | 2010-07-21 | 黑龙江科技学院 | Method for forming refractory metal parts by using laser |
| CN103695681A (en) * | 2013-12-18 | 2014-04-02 | 湖南航天工业总公司 | Forming device and method of aluminum-based silicon carbide particle reinforced composite material and member thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108709198A (en) * | 2018-06-06 | 2018-10-26 | 苏州宏久航空防热材料科技有限公司 | A kind of preparation method of 3D printing SiC core materials and high-densit vitreous carbon encapsulation combustion chamber |
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Address after: 215400 Chengxiang City, Taicang Province town of the People South Road, No. 162, No. Patentee after: TAICANG PAIOU TECHNOLOGY CONSULTATION SERVICE CO., LTD. Address before: Taicang City, Suzhou City, Jiangsu Province, and 215400 Metro Jianxiong Road No. 20 Patentee before: TAICANG PAIOU TECHNOLOGY CONSULTATION SERVICE CO., LTD. |