CN112895438B - Method and device for manufacturing radiation shield - Google Patents
Method and device for manufacturing radiation shield Download PDFInfo
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- CN112895438B CN112895438B CN202110111352.4A CN202110111352A CN112895438B CN 112895438 B CN112895438 B CN 112895438B CN 202110111352 A CN202110111352 A CN 202110111352A CN 112895438 B CN112895438 B CN 112895438B
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- 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
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/10—Processes of additive manufacturing
- B29C64/141—Processes of additive manufacturing using only solid materials
- B29C64/153—Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
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- 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
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/30—Auxiliary operations or equipment
- B29C64/386—Data acquisition or data processing for additive manufacturing
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- 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
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/30—Auxiliary operations or equipment
- B29C64/386—Data acquisition or data processing for additive manufacturing
- B29C64/393—Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
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- 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
- B33Y10/00—Processes of additive manufacturing
-
- 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
- B33Y50/00—Data acquisition or data processing for additive manufacturing
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- 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
- B33Y50/00—Data acquisition or data processing for additive manufacturing
- B33Y50/02—Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Engineering (AREA)
- Powder Metallurgy (AREA)
Abstract
According to the method and the device for manufacturing the radiation shielding body, the using amount of shielding materials is reduced through the minimum mosaic cube forming piece, the requirements of light weight and small size of the shielding body are met, the shielding body is convenient to manufacture through a 3D printing technology, meanwhile, the radiation beam leakage caused by the combination and installation of different shielding bodies is avoided, the manufacturing process and time of the shielding body are shortened, and the physical and mechanical properties of the shielding structure are improved.
Description
Technical Field
The invention relates to the field of design and manufacture of radiation shields, in particular to a method and a device for manufacturing a radiation shield.
Background
Radiation shielding refers to a radiation protection technique that reduces the radiation level in an area by the action of radiation and matter, thereby reducing exposure of people and radiation damage to materials. At present, the research on radiation shielding at home and abroad mainly focuses on the research and development of shielding materials and the optimization of shielding structures so as to improve the radiation shielding performance, but the shielding materials and the shielding structures are always a big contradiction problem in the design and manufacture of radiation shielding bodies, and good physical and mechanical properties (hardness, toughness and fatigue resistance) can not be achieved while a good shielding effect is met.
Disclosure of Invention
The invention aims to solve the technical problem that the existing radiation shield cannot realize good shielding effect and good physical and mechanical properties at the same time, so that the invention provides a method and a device for manufacturing the radiation shield, which are applied to the design and the manufacture of the radiation shield according to the unique advantages that the 3D printing technology with the powder melting function is used for manufacturing entities with complex structures and the physical and mechanical properties of formed structures can be greatly improved, thereby avoiding the defects of weight increment, body increase, process increase, radiation beam leakage and the like caused by the additional requirements of the manufacture and installation on the design of the shield, shortening the manufacturing time and reducing the material use.
The invention is realized by the following technical scheme:
a method of manufacturing a radiation shield comprising:
obtaining a shielding index, and calculating a first manufacturing parameter of a minimum mosaic three-dimensional forming part based on the shielding index;
manufacturing a minimum mosaic three-dimensional forming piece based on the first manufacturing parameters, and bonding all the minimum mosaic three-dimensional forming pieces to form a radiation shielding body to be verified;
calculating and verifying whether the physical mechanical property of the radiation shield to be verified meets a preset condition through the physical mechanical property;
if the physical and mechanical properties of the radiation shield to be verified meet preset conditions, acquiring second manufacturing parameters of the minimum mosaic three-dimensional forming piece;
inputting the first and second manufacturing parameters into a 3D printer with powder melting functionality to print a radiation shield;
wherein the obtaining of the shielding index and the calculating of the first manufacturing parameter of the minimum mosaic stereolithography section based on the shielding index include:
and acquiring a shielding index, and calculating the shielding index through shielding calculation software to obtain the number size information, the components, the share of each component and the use amount of each component of the minimum mosaic three-dimensional forming part.
Further, if the physical and mechanical properties of the radiation shield to be verified meet preset conditions, acquiring second manufacturing parameters of the minimum mosaic three-dimensional forming part, including:
and if the physical and mechanical properties of the radiation shield to be verified meet preset conditions, acquiring the arrangement information and the adhesive type of the minimum mosaic three-dimensional forming piece.
Further, the radiation shield manufacturing method further includes:
and if the physical mechanical property of the radiation shield to be verified can not meet the preset condition, replacing the adhesive type, and repeatedly executing the step of calculating and verifying whether the physical mechanical property of the radiation shield to be verified meets the preset condition through the physical mechanical property until the physical mechanical property of the radiation shield to be verified meets the preset condition, stopping the operation, and acquiring a second manufacturing parameter of the minimum mosaic three-dimensional forming part.
Further, the preset condition is a preset condition meeting mechanical property indexes.
Further, the minimum mosaic three-dimensional forming piece adopts a powdery shielding material; the shielding material comprises a single powder material or a composite powder material or a mixed powder material of a plurality of single powder materials and composite powder materials.
Further, the powder material of the minimal mosaic three-dimensional forming piece is manufactured by a 3D printer powder melting technology.
A radiation shield manufacturing apparatus comprising:
the manufacturing parameter acquisition module is used for acquiring a shielding index and calculating a first manufacturing parameter of the minimum mosaic three-dimensional forming part based on the shielding index;
the to-be-verified radiation shield generating module is used for manufacturing a minimum mosaic three-dimensional forming piece based on the first manufacturing parameter and bonding all the minimum mosaic three-dimensional forming pieces to form a to-be-verified radiation shield;
the radiation shielding body to be verified is subjected to physical and mechanical performance calculation and verification, and the radiation shielding body to be verified is subjected to physical and mechanical performance calculation and verification to determine whether the physical and mechanical performance of the radiation shielding body to be verified meets preset conditions;
the cube molding part parameter obtaining module is used for obtaining a second manufacturing parameter of the minimum mosaic three-dimensional molding part if the physical and mechanical properties of the radiation shield to be verified meet preset conditions;
a radiation shield printing module to input the first manufacturing parameters and the second manufacturing parameters into a 3D printer with powder fusing to print a radiation shield.
Wherein the first manufacturing parameters comprise number size information, components, share of each component and using amount of each component of the minimum mosaic three-dimensional forming part; the second manufacturing parameters include arrangement information of the minimum mosaic stereolithography and adhesive type.
Further, the radiation shield manufacturing apparatus further includes:
and the iterative operation module is used for replacing the adhesive type if the physical mechanical property of the radiation shielding body to be verified can not meet the preset condition, and repeatedly executing the step of calculating and verifying whether the physical mechanical property of the radiation shielding body to be verified meets the preset condition through the physical mechanical property until the physical mechanical property of the radiation shielding body to be verified meets the preset condition, stopping the operation and acquiring a second manufacturing parameter of the minimum mosaic three-dimensional forming part.
According to the method and the device for manufacturing the radiation shielding body, the using amount of shielding materials is reduced through the minimum mosaic three-dimensional forming piece, the requirements of light weight and small size of the shielding body are met, the shielding body is convenient to manufacture through a 3D printing technology, meanwhile, the radiation beam leakage caused by the combined installation of different shielding bodies is avoided, the manufacturing process and time of the shielding body are shortened, and the physical and mechanical properties of the shielding structure are improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
FIG. 1 is a flow chart of a method of manufacturing a radiation shield according to the present invention;
FIG. 2 is a schematic block diagram of a radiation shield manufacturing apparatus of the present invention;
FIG. 3 is a schematic view of a radiation shield printed by a radiation shield manufacturing apparatus of the present invention;
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.
Example 1
As shown in fig. 1, the present invention provides a method for manufacturing a radiation shield, which specifically includes the following steps:
s10: and acquiring a shielding index, and calculating a first manufacturing parameter of the minimum mosaic three-dimensional forming part based on the shielding index.
The shielding index refers to an index value determined according to the radiation source and used for judging whether the shielding effect meets the requirement or not. The shielding indicators in this embodiment include, but are not limited to, contact dose rate and site dose rate.
Specifically, after the shielding index is obtained, the shielding index is calculated through shielding calculation software, and a first manufacturing parameter of the minimum mosaic three-dimensional forming part is obtained. The minimum mosaic three-dimensional forming part is a three-dimensional forming part with the appearance similar to a mosaic. The first manufacturing parameters in the present embodiment refer to the size information (i.e., length, width, height) of the minimum mosaic stereoformed piece and the components, the respective component parts, and the respective component amounts that constitute the minimum mosaic stereoformed piece. The mask calculation software in this embodiment includes, but is not limited to, MCNP.
The minimum mosaic three-dimensional forming part in the embodiment adopts a powdery shielding material, the shielding material comprises a single powder material or a composite powder material or a mixed powder material of a plurality of single powder materials and composite powder materials, the actual selection can be determined according to specific conditions, and the requirements on the production process of the shielding material are reduced by using the powdery shielding material.
S20: and manufacturing a minimum mosaic three-dimensional forming part based on the first manufacturing parameters, and bonding all the minimum mosaic three-dimensional forming parts to form the radiation shield to be verified.
And the radiation shield computer to be verified simulates the radiation shield formed after bonding the minimum mosaic three-dimensional forming part.
S30: and calculating and verifying whether the physical mechanical property of the radiation shield to be verified meets a preset condition through the physical mechanical property.
The preset conditions in this embodiment refer to preset conditions that satisfy mechanical property indexes, including but not limited to brittleness, strength, toughness, plasticity, and fatigue resistance of the radiation shield, and are used to ensure that the radiation shield to be verified does not deform and collapse at a certain temperature and under a certain pressure.
S40: and if the physical and mechanical properties of the radiation shield to be verified meet preset conditions, acquiring second manufacturing parameters of the minimum mosaic three-dimensional forming piece.
The second manufacturing parameter in the present embodiment refers to the arrangement information and the adhesive type of the minimum mosaic stereolithography.
Further, if the physical mechanical property of the radiation shield to be verified cannot meet the preset condition, the method for manufacturing the radiation shield further comprises a step S60, if the physical mechanical property of the radiation shield to be verified cannot meet the preset condition, the type of the adhesive is replaced, the step S30 is repeated, whether the physical mechanical property of the radiation shield to be verified meets the preset condition is verified through calculation of the physical mechanical property until the physical mechanical property of the radiation shield to be verified meets the preset condition, the method stops until the physical mechanical property of the radiation shield to be verified meets the preset condition, and the second manufacturing parameter of the minimum mosaic three-dimensional forming part is obtained.
S50: the first manufacturing parameters and the second manufacturing parameters are input into a 3D printer with powder melting functionality to print the radiation shield.
Further, the powder material of the shield is manufactured by a 3D printer powder fusion technique to ensure a higher part density, ensuring the strength of the radiation shield.
Example 2
As shown in fig. 2, the present embodiment is different from embodiment 1 in that a radiation shield manufacturing apparatus is provided, including:
and the manufacturing parameter acquiring module 10 is used for acquiring a shielding index and calculating a first manufacturing parameter of the minimum mosaic three-dimensional forming part based on the shielding index.
And the to-be-verified radiation shield generating module 20 is configured to make a minimum mosaic three-dimensional forming piece based on the first manufacturing parameter, and bond all the minimum mosaic three-dimensional forming pieces to form the to-be-verified radiation shield.
And the to-be-verified radiation shield verification module 30 is used for calculating and verifying whether the physical mechanical property of the to-be-verified radiation shield meets the preset condition through the physical mechanical property.
And the cube forming part parameter obtaining module 40 is configured to obtain a second manufacturing parameter of the minimum mosaic three-dimensional forming part if the physical and mechanical properties of the radiation shield to be verified meet preset conditions.
A radiation shield printing module 50 for inputting the first manufacturing parameters and the second manufacturing parameters into a 3D printer with powder melting functionality to print the radiation shield.
Further, the first manufacturing parameters include number size information of the minimum mosaic three-dimensional formed part, components, the share of each component and the amount of each component; the second manufacturing parameters include arrangement information of the minimum mosaic stereolithography and adhesive type.
Further, the radiation shield manufacturing apparatus further includes an iterative operation module 60.
And the iterative operation module 60 is configured to, if the physical mechanical property of the radiation shield to be verified cannot meet the preset condition, replace the type of the adhesive, and repeatedly perform the step of calculating and verifying whether the physical mechanical property of the radiation shield to be verified meets the preset condition through the physical mechanical property until the physical mechanical property of the radiation shield to be verified meets the preset condition, and obtain a second manufacturing parameter of the minimum mosaic three-dimensional formed part.
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-mentioned division of the functional units and modules is illustrated, and in practical applications, the above-mentioned function distribution may be performed by different functional units and modules according to needs, that is, the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-mentioned functions.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (8)
1. A method of manufacturing a radiation shield, comprising:
obtaining a shielding index, and calculating a first manufacturing parameter of a minimum mosaic three-dimensional forming part based on the shielding index;
manufacturing a minimum mosaic three-dimensional forming piece based on the first manufacturing parameters, and bonding all the minimum mosaic three-dimensional forming pieces to form a radiation shielding body to be verified;
calculating and verifying whether the physical mechanical property of the radiation shield to be verified meets a preset condition through the physical mechanical property;
if the physical and mechanical properties of the radiation shield to be verified meet preset conditions, acquiring second manufacturing parameters of the minimum mosaic three-dimensional forming piece;
inputting the first and second manufacturing parameters into a 3D printer with powder melting functionality to print a radiation shield;
wherein the obtaining of the shielding index and the calculating of the first manufacturing parameter of the minimum mosaic stereolithography section based on the shielding index include: and acquiring a shielding index, and calculating the shielding index through shielding calculation software to obtain the number size information, the components, the share of each component and the use amount of each component of the minimum mosaic three-dimensional forming part.
2. The method for manufacturing the radiation shield according to claim 1, wherein the obtaining of the second manufacturing parameter of the minimum mosaic three-dimensional forming member if the physical and mechanical properties of the radiation shield to be verified satisfy a preset condition includes:
and if the physical and mechanical properties of the radiation shield to be verified meet preset conditions, acquiring the arrangement information and the adhesive type of the minimum mosaic three-dimensional forming piece.
3. The radiation shield manufacturing method according to claim 1, further comprising:
and if the physical mechanical property of the radiation shield to be verified can not meet the preset condition, replacing the adhesive type, and repeatedly executing the step of calculating and verifying whether the physical mechanical property of the radiation shield to be verified meets the preset condition through the physical mechanical property until the physical mechanical property of the radiation shield to be verified meets the preset condition, stopping the operation, and acquiring a second manufacturing parameter of the minimum mosaic three-dimensional forming part.
4. The method of manufacturing a radiation shield according to claim 1, wherein the preset condition is a preset condition that satisfies a mechanical property index.
5. The method of manufacturing a radiation shield of claim 1 wherein the minimal mosaic stereolithography member is a powdered shielding material; the shielding material comprises a single powder material or a composite powder material or a mixed powder material of a plurality of single powder materials and composite powder materials.
6. The method of manufacturing a radiation shield according to claim 1, wherein the powdered material of the minimal solid mosaic moulding is manufactured by a 3D printer powder fusion technique.
7. A radiation shield manufacturing apparatus, comprising:
the manufacturing parameter acquisition module is used for acquiring a shielding index and calculating a first manufacturing parameter of the minimum mosaic three-dimensional forming part based on the shielding index;
the to-be-verified radiation shield generating module is used for manufacturing a minimum mosaic three-dimensional forming piece based on the first manufacturing parameter and bonding all the minimum mosaic three-dimensional forming pieces to form a to-be-verified radiation shield;
the radiation shielding body to be verified is subjected to physical and mechanical performance calculation and verification, and the radiation shielding body to be verified is subjected to physical and mechanical performance calculation and verification to determine whether the physical and mechanical performance of the radiation shielding body to be verified meets preset conditions;
the cube molding part parameter obtaining module is used for obtaining a second manufacturing parameter of the minimum mosaic three-dimensional molding part if the physical and mechanical properties of the radiation shield to be verified meet preset conditions;
a radiation shield printing module to input the first manufacturing parameters and the second manufacturing parameters into a 3D printer with powder melting functionality to print a radiation shield;
wherein the first manufacturing parameters comprise number size information, components, share of each component and using amount of each component of the minimum mosaic three-dimensional forming part; the second manufacturing parameters include arrangement information of the minimum mosaic stereolithography and adhesive type.
8. The radiation shield manufacturing apparatus of claim 7, further comprising:
and the iterative operation module is used for replacing the adhesive type if the physical mechanical property of the radiation shielding body to be verified can not meet the preset condition, and repeatedly executing the step of calculating and verifying whether the physical mechanical property of the radiation shielding body to be verified meets the preset condition through the physical mechanical property until the physical mechanical property of the radiation shielding body to be verified meets the preset condition, stopping the operation and acquiring a second manufacturing parameter of the minimum mosaic three-dimensional forming part.
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