CN109128133A - A kind of recombination radiation protective materials and preparation method - Google Patents
A kind of recombination radiation protective materials and preparation method Download PDFInfo
- Publication number
- CN109128133A CN109128133A CN201810870237.3A CN201810870237A CN109128133A CN 109128133 A CN109128133 A CN 109128133A CN 201810870237 A CN201810870237 A CN 201810870237A CN 109128133 A CN109128133 A CN 109128133A
- Authority
- CN
- China
- Prior art keywords
- protective materials
- radiation protective
- recombination radiation
- parts
- coupling agent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/10—Metallic powder containing lubricating or binding agents; Metallic powder containing organic material
- B22F1/102—Metallic powder coated with organic material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/30—Process control
- B22F10/36—Process control of energy beam parameters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/10—Formation of a green body
- B22F10/16—Formation of a green body by embedding the binder within the powder bed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/30—Process control
- B22F10/34—Process control of powder characteristics, e.g. density, oxidation or flowability
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/30—Process control
- B22F10/36—Process control of energy beam parameters
- B22F10/362—Process control of energy beam parameters for preheating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/30—Process control
- B22F10/36—Process control of energy beam parameters
- B22F10/366—Scanning parameters, e.g. hatch distance or scanning strategy
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F1/00—Shielding characterised by the composition of the materials
- G21F1/02—Selection of uniform shielding materials
- G21F1/08—Metals; Alloys; Cermets, i.e. sintered mixtures of ceramics and metals
- G21F1/085—Heavy metals or alloys
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Automation & Control Theory (AREA)
- Metallurgy (AREA)
- Ceramic Engineering (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
It includes 5~40 parts of nylon resin powder of parts by weight, 60~90 parts of tungsten powder, 0.5~3 part of flow promortor and 1~5 part of coupling agent that the present invention, which provides a kind of recombination radiation protective materials and preparation method, the recombination radiation protective materials,.The present invention is by selecting tungsten as protection radiative material, it solves the prior art and bring pollution problem is radiated using lead protection, since tungsten fusing point is high, intensity is high, plasticity is poor, poor toughness, various complicated shapes can be made by using nylon to add tungsten powder for substrate, but nylon/composite tungsten material generallys use extruding pelletization-injection molding technique manufacture at present, nylon/composite tungsten material of different shapes needs to customize certain moduli tool, manufacturing cost is high, and it is easy to produce stomata, uniformity is poor, the present invention passes through laser sintered production, it solves at high cost caused by prior art, it is easy to produce the problem of stomata and uniformity difference.
Description
Technical field
The present invention relates to technical field of nuclear radiation protection more particularly to a kind of recombination radiation protective materials and preparation methods.
Background technique
Current most widely used radiation protection material is containing high atomic number such as lead (such as lead, refined lead, Organic leadP glass
Glass) and tungsten material.Lead is toxic, and to ray of the energy between 40 ~ 88keV, there are one " Pb weak absorbing areas ", is easy
Secondary bremstrahlen is generated, and the structural strength of lead is poor, non-refractory, is commonly used to do lead container, active screen, lead brick etc..With
Various countries' gradually raising to lead and lead-containing materials production and the limitation and people that use to radiation protection performance requirement, finds one
The material that kind is environmental-friendly and radiation protection ability is strong becomes radiation protection field urgent problem to be solved.
Tungsten has high density and atomic number, has many advantages, ray as ideal radiation proof material
Shield effectiveness is very good, and furthermore ray weak absorbing area is not present in tungsten material, does not generate bremstrahlen.However tungsten have fusing point it is high,
The features such as intensity is high, plasticity is poor, poor toughness, it is difficult to be processed into the ray protection material of complicated shape.Nylon is then mechanics
Function admirable, it is cheap and easy to get, be easily worked one of molding, widely used engineering plastics.Tungsten powder is added as matrix using nylon to fill out
Nylon/composite tungsten material product that material prepares various complicated shapes can well solve the above problem, but nylon/tungsten is multiple at present
Condensation material generallys use extruding pelletization-injection molding technique manufacture, and nylon/composite tungsten material of different shapes needs to customize special
Different mold, manufacturing cost are high, and are easy to produce stomata, the problems such as uniformity is poor, largely limit Buddhist nun
The application of dragon/tungsten recombination radiation protective materials.
Summary of the invention
In order to solve the above technical problems, the present invention provides a kind of recombination radiation protective materials and preparation method.
A kind of recombination radiation protective materials provided by the invention, the recombination radiation protective materials include parts by weight 5~
40 parts of nylon resin powder, 60~90 parts of tungsten powder, 0.5~3 part of flow promortor and 1~5 part of coupling agent.
Further, the partial size of the tungsten powder is 5~80um.
Further, the nylon resin powder includes at least one of PA6, PA66, PA1010, PA11 and PA12.
Further, the flow promortor includes nanometer calcium carbonate, nano calcium oxide, nanometer silicon carbide and nanometer titanium dioxide
At least one of silicon.
Further, the coupling agent is silane coupling agent.
Further, the silane coupling agent includes γ-mercaptopropyl trimethoxysilane, gamma-aminopropyl-triethoxy silicon
At least one of alkane and γ propyltrimethoxy silane.
A kind of recombination radiation protective materials preparation method, the preparation method include:
Tungsten powder is added in mechanical agitator；
It successively adds nylon resin powder, flow promortor, coupling agent and carries out splash bar；
Composite material is obtained by filtration；
Recombination radiation protective materials is obtained by the laser sintered composite material.
Composite material is obtained by filtration；
Recombination radiation protective materials is obtained by the laser sintered composite material.
Further, the sieve is 150 meshes.
Further, described to include: by the laser sintered recombination radiation protective materials specific steps that obtain
Composite material is preheated using 160 ° of c of preheating temperature using laser sintering and moulding equipment；
Pass through laser power 35W, scanning speed 2000mm/s, sintering spacing 0.3mm, sinter layer thickness 0.1mm, to composite material
It carries out laser sintered obtaining recombination radiation protective materials.
Further, the nylon resin powder includes at least one of PA6, PA66, PA1010, PA11 and PA12；Institute
Stating flow promortor includes at least one of nanometer calcium carbonate, nano calcium oxide, nanometer silicon carbide and nano silica；The idol
Connection agent is silane coupling agent, and the silane coupling agent includes γ-mercaptopropyl trimethoxysilane, gamma-aminopropyl-triethoxy silicon
At least one of alkane and γ propyltrimethoxy silane.
The invention has the following beneficial effects:
The present invention is used for radiation protection field by using tungsten material, opposite with lead, with nontoxic, structural strength is high, no
Bremstrahlen can be generated, solves the problems, such as that radiation protection material lead itself brings pollution, while utilizing laser sintering and moulding equipment,
Tungsten and nylon mixture are handled, the tungsten rapid mould of radiation-screening material, relatively traditional extrusion may be implemented
Granulation-injection molding technique, due to not needing custom mold, cost is substantially reduced, and shortens molding time, and is not easy
There is the problem of stomata and uniformity difference.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the flow chart of recombination radiation protective materials preparation method provided in an embodiment of the present invention.
Specific embodiment
This patent core content is that tungsten substitution lead is selected to solve lead pollution problem itself, tungsten and nylon resin powder shape
Resulting mixture uses laser sintering process, solves at high cost using injection molding technique bring, uneven and is easy to produce
The problem of stomata, is described further this method and system specific embodiment below in conjunction with drawings and examples.
The embodiment of a kind of recombination radiation protective materials provided by the invention and preparation method is described more fully below.
The embodiment of the invention provides a kind of recombination radiation protective materials and preparation method, the radiation protection material includes
6500 grams of tungsten powder, 3000 grams of nylon resin powder, 200 grams of flow promortor and coupling agent 300, equivalent 65 parts of parts by weight tungsten powder,
30 parts of nylon resin powder, 2 parts of flow promortor and 3 parts of coupling agent, nylon resin powder selects PA6, certain Buddhist nun in the present embodiment
Imperial toner it is alternative have PA66, PA1010, PA11 and PA12, flow promortor is selected nanometer calcium carbonate, nano calcium oxide, is received
Rice at least one of silicon carbide and nano silica or a variety of, coupling agent select silane coupling agent, and the silane is even
Connection agent include in γ-mercaptopropyl trimethoxysilane, gamma-aminopropyl-triethoxy-silane and γ propyltrimethoxy silane extremely
Few one kind.In other embodiments, nylon resin powder, flow promortor and coupling agent are selected in above-mentioned material.
It should be noted that the partial size of tungsten powder selects 5~80um.
As shown in Figure 1, preparation method includes:
S101,6500 grams of tungsten powder are weighed, be put into mechanical agitator.
S102, successively 3000 grams of nylon resin powder of addition, 200 grams of flow promortor, 300 grams of coupling agent, by mixed material
It stirs evenly.
S103, composite material is obtained by filtration.
It should be noted that sieve here is 150 meshes.
S104, composite material is preheated using 160 ° of c of preheating temperature.
S105, pass through laser power 35W, scanning speed 2000mm/s, sintering spacing 0.3mm, sinter layer thickness 0.1mm,
It is laser sintered to composite material progress to obtain recombination radiation protective materials.
It should be noted that step S104, S105 is realized using laser sintering and moulding equipment.
To laser sintering and moulding part according to American Society for Testing Materials (American Society of Testing
Materials, ASTM) it is tested for the property, it obtains:
Tensile strength: 39.5MPa, bending strength: 73.5MPa, density: 2.7g/cm3 and gamma ray shielding rate: 22.3%.
Another embodiment of the present invention provides a kind of recombination radiation protective materials and preparation method, the radiation protection materials
Including 7500 grams of tungsten powder, 1900 grams of nylon resin powder, 250 grams of flow promortor and coupling agent 350, parts by weight tungsten powder 75 is converted into
Part, 19 parts of nylon resin powder, 2.5 parts of flow promortor and 3.5 parts of coupling agent, nylon resin powder select PA12.
The preparation method that the embodiment uses is identical as the preparation method that a upper embodiment uses, and is tested for the property
It arrives:
Tensile strength: 37.5MPa, bending strength: 69.8MPa, density: 3.5g/cm3 and gamma ray shielding rate: 30.4%.
Yet another embodiment of the invention provides a kind of recombination radiation protective materials and preparation method, the radiation protection material
Including 8500 grams of tungsten powder, 1000 grams of nylon resin powder, 200 grams of flow promortor and coupling agent 300, parts by weight tungsten powder 85 is converted into
Part, 10 parts of nylon resin powder, 2 parts of flow promortor and 3 parts of coupling agent, nylon resin powder select PA12.
The preparation method that the embodiment uses is identical as the preparation method that a upper embodiment uses, and is tested for the property
It arrives:
Tensile strength: 33.6MPa, bending strength: 55.8MPa, density: 4.78g/cm3 and gamma ray shielding rate: 38.6%.
The invention has the following beneficial effects:
The present invention is used for radiation protection field by using tungsten material, opposite with lead, with nontoxic, structural strength is high, no
Bremstrahlen can be generated, solves the problems, such as that radiation protection material lead itself brings pollution, while utilizing laser sintering and moulding equipment,
Tungsten and nylon mixture are handled, the tungsten rapid mould of radiation-screening material, relatively traditional extrusion may be implemented
Granulation-injection molding technique, due to not needing custom mold, cost is substantially reduced, and shortens molding time, and is not easy
There is the problem of stomata and uniformity difference.
The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be said that
Specific implementation of the invention is only limited to these instructions.For those of ordinary skill in the art to which the present invention belongs, exist
Under the premise of not departing from present inventive concept, a number of simple deductions or replacements can also be made, all shall be regarded as belonging to of the invention
Protection scope.
Claims (10)
1. a kind of recombination radiation protective materials, which is characterized in that the recombination radiation protective materials includes 5~40 parts of parts by weight
Nylon resin powder, 60~90 parts of tungsten powder, 0.5~3 part of flow promortor and 1~5 part of coupling agent.
2. recombination radiation protective materials as described in claim 1, which is characterized in that the partial size of the tungsten powder is 5~80um.
3. recombination radiation protective materials as claimed in claim 2, which is characterized in that the nylon resin powder include PA6,
At least one of PA66, PA1010, PA11 and PA12.
4. recombination radiation protective materials as claimed in claim 3, which is characterized in that the flow promortor includes nano-calcium carbonate
At least one of calcium, nano calcium oxide, nanometer silicon carbide and nano silica.
5. recombination radiation protective materials as claimed in claim 4, which is characterized in that the coupling agent is silane coupling agent.
6. recombination radiation protective materials as claimed in claim 5, which is characterized in that the silane coupling agent includes γ-mercapto third
At least one of base trimethoxy silane, gamma-aminopropyl-triethoxy-silane and γ propyltrimethoxy silane.
7. a kind of such as recombination radiation protective materials preparation method as claimed in any one of claims 1 to 6, which is characterized in that described
Preparation method includes:
It is that 60~90 parts of tungsten powders add in mechanical agitator by parts by weight；
5~40 parts of nylon resin powder of parts by weight, 0.5~3 part of flow promortor, 1~5 part of coupling agent is successively added to be stirred
It mixes；
Composite material is obtained by filtration；
Recombination radiation protective materials is obtained by the laser sintered composite material.
8. recombination radiation protective materials preparation method as claimed in claim 7, which is characterized in that the sieve is 150 meshes.
9. recombination radiation protective materials preparation method as claimed in claim 8, which is characterized in that described to be obtained by laser sintered
Include: to recombination radiation protective materials specific steps
Composite material is preheated using 160 ° of c of preheating temperature using laser sintering and moulding equipment；
Pass through laser power 35W, scanning speed 2000mm/s, sintering spacing 0.3mm, sinter layer thickness 0.1mm, to composite material
It carries out laser sintered obtaining recombination radiation protective materials.
10. recombination radiation protective materials preparation method as claimed in claim 7, which is characterized in that the nylon resin powder
Including at least one of PA6, PA66, PA1010, PA11 and PA12；The flow promortor includes nanometer calcium carbonate, nano oxidized
At least one of calcium, nanometer silicon carbide and nano silica；The coupling agent is silane coupling agent, the silane coupling agent packet
Include at least one of γ-mercaptopropyl trimethoxysilane, gamma-aminopropyl-triethoxy-silane and γ propyltrimethoxy silane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810870237.3A CN109128133A (en) | 2018-08-02 | 2018-08-02 | A kind of recombination radiation protective materials and preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810870237.3A CN109128133A (en) | 2018-08-02 | 2018-08-02 | A kind of recombination radiation protective materials and preparation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109128133A true CN109128133A (en) | 2019-01-04 |
Family
ID=64798635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810870237.3A Pending CN109128133A (en) | 2018-08-02 | 2018-08-02 | A kind of recombination radiation protective materials and preparation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109128133A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110666167A (en) * | 2019-09-11 | 2020-01-10 | 中广核研究院有限公司 | Selective laser sintering 3D printing shielding material and preparation method thereof, shielding piece and manufacturing method thereof |
| CN110828019A (en) * | 2019-11-29 | 2020-02-21 | 西安交通大学 | Silica gel-based flexible shielding material for gamma ray shielding and preparation method thereof |
| CN113751704A (en) * | 2021-07-28 | 2021-12-07 | 北京科技大学 | Tungsten alloy for selective laser sintering printing film coating, preparation and printing method |
| CN115368666A (en) * | 2021-12-07 | 2022-11-22 | 河北穿着不累医疗科技有限公司 | Ray protection shoe material and preparation method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050278061A1 (en) * | 2002-07-25 | 2005-12-15 | Degrange Jeffrey E | Direct manufacture of aerospace parts |
| CN102140246A (en) * | 2010-12-21 | 2011-08-03 | 湖南华曙高科技有限责任公司 | Method for preparing nylon powder for selective laser sintering |
| CN106702357A (en) * | 2016-12-22 | 2017-05-24 | 北京航空航天大学 | Particle-reinforced light microarray composite material and preparation method thereof |
| CN106905672A (en) * | 2017-03-30 | 2017-06-30 | 湖南华曙高科技有限责任公司 | A kind of PBT dusty materials for selective laser sintering and preparation method thereof |
| CN107337793A (en) * | 2017-07-28 | 2017-11-10 | 湖南华曙高科技有限责任公司 | Copolymer nylon dusty material for selective laser sintering and preparation method thereof |
| CN107880540A (en) * | 2017-12-28 | 2018-04-06 | 湖南华曙高科技有限责任公司 | Modified nylon composite material for selective laser sintering and preparation method thereof |
| CN107974077A (en) * | 2017-11-24 | 2018-05-01 | 湖南华曙高科技有限责任公司 | A kind of nylon composite materials for selective laser sintering and preparation method thereof |
| CN107987522A (en) * | 2017-11-24 | 2018-05-04 | 湖南华曙高科技有限责任公司 | Nylon composite materials for selective laser sintering and preparation method thereof |
-
2018
- 2018-08-02 CN CN201810870237.3A patent/CN109128133A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050278061A1 (en) * | 2002-07-25 | 2005-12-15 | Degrange Jeffrey E | Direct manufacture of aerospace parts |
| CN102140246A (en) * | 2010-12-21 | 2011-08-03 | 湖南华曙高科技有限责任公司 | Method for preparing nylon powder for selective laser sintering |
| CN106702357A (en) * | 2016-12-22 | 2017-05-24 | 北京航空航天大学 | Particle-reinforced light microarray composite material and preparation method thereof |
| CN106905672A (en) * | 2017-03-30 | 2017-06-30 | 湖南华曙高科技有限责任公司 | A kind of PBT dusty materials for selective laser sintering and preparation method thereof |
| CN107337793A (en) * | 2017-07-28 | 2017-11-10 | 湖南华曙高科技有限责任公司 | Copolymer nylon dusty material for selective laser sintering and preparation method thereof |
| CN107974077A (en) * | 2017-11-24 | 2018-05-01 | 湖南华曙高科技有限责任公司 | A kind of nylon composite materials for selective laser sintering and preparation method thereof |
| CN107987522A (en) * | 2017-11-24 | 2018-05-04 | 湖南华曙高科技有限责任公司 | Nylon composite materials for selective laser sintering and preparation method thereof |
| CN107880540A (en) * | 2017-12-28 | 2018-04-06 | 湖南华曙高科技有限责任公司 | Modified nylon composite material for selective laser sintering and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 吴宏富，余绍火: "《中国粉体工业通鉴第3卷2007版》", 31 August 2007, 北京：中国建材工业出版社 * |
| 闫春泽，文世峰，蔡道生: "《粉末激光烧结增材制造技术》", 30 June 2013, 武汉：华中科技大学出版社 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110666167A (en) * | 2019-09-11 | 2020-01-10 | 中广核研究院有限公司 | Selective laser sintering 3D printing shielding material and preparation method thereof, shielding piece and manufacturing method thereof |
| CN110666167B (en) * | 2019-09-11 | 2022-03-18 | 中广核研究院有限公司 | Selective laser sintering 3D printing shielding material and preparation method thereof, shielding piece and manufacturing method thereof |
| CN110828019A (en) * | 2019-11-29 | 2020-02-21 | 西安交通大学 | Silica gel-based flexible shielding material for gamma ray shielding and preparation method thereof |
| CN113751704A (en) * | 2021-07-28 | 2021-12-07 | 北京科技大学 | Tungsten alloy for selective laser sintering printing film coating, preparation and printing method |
| CN115368666A (en) * | 2021-12-07 | 2022-11-22 | 河北穿着不累医疗科技有限公司 | Ray protection shoe material and preparation method thereof |
| CN115368666B (en) * | 2021-12-07 | 2024-03-26 | 河北穿着不累医疗科技有限公司 | Ray protection shoe material and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109128133A (en) | A kind of recombination radiation protective materials and preparation method | |
| US20200147900A1 (en) | Method for manufacturing composite product from chopped fiber reinforced thermosetting resin by 3d printing | |
| CN106927847B (en) | Method and device for forming fiber reinforced ceramic matrix composite based on 3D printing technology | |
| CN104193345B (en) | The method of microwave-absorbing ceramic parts is prepared based on 3D printing technique | |
| Yang et al. | 3D printing of NdFeB bonded magnets with SrFe12O19 addition | |
| CN104496271A (en) | Artificial quartzite plate and manufacturing method thereof | |
| CN104910609A (en) | Polyurethane composite material for 3D printing, and preparation method and application thereof | |
| CN104478293A (en) | Synthetic quartzite plate and preparation method thereof | |
| CN102337021A (en) | Nylon composite powder material for selective laser sintering | |
| CN102382998A (en) | Method for preparing in situ titanium-based composite material and part | |
| CN102719067A (en) | High-performance fiberglass reinforced plastic composite material and preparation method thereof | |
| CN104372209B (en) | A kind of aluminum base powder metallurgy composite and preparation method thereof | |
| CN106119660A (en) | A kind of ceramic metallic material | |
| CN107163565A (en) | For selective laser sintering novel nylon composite and preparation method thereof | |
| CN107760018A (en) | A kind of selective laser sintering 3D printing composite powders of PA 12 | |
| CN105949962A (en) | Self-luminous epoxy resin liquid, preparation method of self-luminous epoxy resin liquid, self-luminous epoxy resin composite and self-luminous carbon fiber prepreg | |
| CN105008437A (en) | Composite materials for use in injection moulding methods | |
| CN107987522A (en) | Nylon composite materials for selective laser sintering and preparation method thereof | |
| CN108213443A (en) | A kind of bionic laminar is high-strength, the preparation method of high-ductility material | |
| CN103254695A (en) | Powder coating with high density polyethylene as main ingredient and preparation method thereof | |
| CN111548053A (en) | Artificial stone and preparation method thereof | |
| CN110627506A (en) | CfSiC crystal boat and 3D printing combined preparation method thereof | |
| JP2014182055A (en) | Organic inorganic composite | |
| CN109897372A (en) | A kind of low-density nylon composite powder and preparation method thereof for selective laser sintering | |
| CN102276264A (en) | Method for preparing superhigh-temperature light zirconium oxide burning plate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190104 |