CN109585050B - Shielding material for medical X-ray protection and production process thereof - Google Patents
Shielding material for medical X-ray protection and production process thereof Download PDFInfo
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- CN109585050B CN109585050B CN201811144490.7A CN201811144490A CN109585050B CN 109585050 B CN109585050 B CN 109585050B CN 201811144490 A CN201811144490 A CN 201811144490A CN 109585050 B CN109585050 B CN 109585050B
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- 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
- G21F1/12—Laminated shielding materials
- G21F1/125—Laminated shielding materials comprising metals
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
- A61B6/10—Application or adaptation of safety means
- A61B6/107—Protection against radiation, e.g. shielding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
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- 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
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- 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
- G21F1/10—Organic substances; Dispersions in organic carriers
- G21F1/103—Dispersions in organic carriers
Abstract
The invention provides a shielding material for medical X-ray protection, which comprises a lead plate and an outer sleeve layer; the outer sleeve layer comprises a bottom plate, a lead plate is arranged on the bottom plate, two first inserting grooves are formed in the bottom plate, the first inserting grooves are parallel to the length direction of the lead plate and are located on the front side and the rear side of the lead plate, a transparent baffle is vertically inserted and fixed in each first inserting groove, a pouring cavity is formed between each transparent baffle and the lead plate, and a composite shielding layer is poured in the pouring cavity; the cover plate is covered on the top of the lead plate, the cover plate is provided with a plug block, the plug block is arranged on the top of the pouring cavity in a transition fit mode, and the cover plate is provided with a pouring hole communicated with the plug block; the front end and the rear end of the outer sleeve layer are respectively provided with a sealing plate, and the sealing plates are fixed on the first blocking wall, the second blocking wall, the third blocking wall and the cover plate through screws.
Description
Technical Field
The invention relates to a shielding material, in particular to a shielding material for medical X-ray protection and a production process thereof.
Background
The radioactive rays mainly include X rays, α rays, β rays, γ rays, neutron rays, proton rays, and the like. Their penetration capacity is different. The alpha and beta particles and protons have charges which, when they interact with the atomic electric field of the protective substance, decrease in energy and are completely blocked by the protective material even of small thickness. Therefore, the concrete for shielding radioactive rays mainly shields X rays, gamma rays and neutron rays.
As is known, in modern medicine, X-ray imaging technology plays an increasingly important role. The use of X-rays brings great benefits for medical diagnosis and treatment on the one hand, and also to the health of the irradiated medical staff and the patient, so that protection must be enhanced.
Patent "201520543994.1" discloses a strenghthened type X ray protection gate, including being used for closing or opening the X ray protection lead door that X-ray flaw detection room imported and exported, be equipped with a plurality of roller sets that are used for supporting this X ray protection lead door at the lower extreme of X ray protection lead door, be equipped with a plurality of hanging in the last guide rail on the upper end of X ray protection lead door and be used for the hanging wheel group of direction, it is a plurality of the roller set is installed and is being seted up in the recess of X ray protection lead door lower extreme, is equipped with a lead bar in the inboard of X ray protection lead door lower extreme, the lower terminal surface of lead bar and the lower terminal surface parallel and level of X ray protection lead door, the up end of lead bar is higher than the up end of recess, and the length of lead bar equals the width of X ray protection lead door, and the width more than or equal to the groove width of lead bar.
The existing radiation-proof door is generally a lead door, although the radiation-proof effect is good, lead is a highly toxic chemical substance, if a lead strip is exposed outside, the lead strip is easy to contact with a human body, and serious threat can be brought to health after long-term use.
Disclosure of Invention
Aiming at the problems, the invention provides a shielding material for medical X-ray protection, which has good protection performance, is safe and reliable, and simultaneously provides a production process thereof, improves the efficiency and ensures the safety of operators.
The specific technical scheme is as follows:
a shielding material for medical X-ray protection comprises a lead plate and an outer sleeve layer;
the outer sleeve layer comprises a bottom plate, a first side plate and a second side plate are respectively and vertically arranged on the left side and the right side of the bottom plate, and cover plates are arranged at the tops of the first side plate and the second side plate; the front side and the rear side of the first side plate are respectively provided with a first blocking wall which is turned inwards, the front side and the rear side of the second side plate are respectively provided with a second blocking wall which is turned inwards, the front side and the rear side of the bottom plate are respectively provided with a third blocking wall which is turned upwards, and the third blocking wall positioned on the same side is connected with the bottoms of the first blocking wall and the second blocking wall;
the lead plate is arranged on the bottom plate, the width of the lead plate is smaller than that of the first side plate, the length of the lead plate is equal to the distance between the first side plate and the second side plate, two first inserting grooves are formed in the bottom plate, the first inserting grooves are parallel to the length direction of the lead plate and are located on the front side and the rear side of the lead plate, a transparent baffle is vertically inserted and fixed in each first inserting groove, a pouring cavity is formed between each transparent baffle and the lead plate, and a composite shielding layer is poured in the pouring cavity;
the cover plate is covered on the top of the lead plate, the cover plate is provided with a chock block, the chock block is arranged on the top of the pouring cavity in a transition fit mode, and the cover plate is provided with a pouring hole communicated with the chock block;
the front end and the rear end of the outer sleeve layer are respectively provided with a sealing plate, and the sealing plates are fixed on the first retaining wall, the second retaining wall, the third retaining wall and the cover plate through screws.
Furthermore, the outer sleeve layer and the sealing plate are both made of stainless steel.
Further, the production process of the shielding material comprises the following steps:
(1) prefabricating a lead plate and a jacket layer, placing the lead plate in the jacket layer, welding and fixing the jacket layer on the lead plate along the edge of the lead plate, and covering a cover plate on the lead plate to obtain a material primary blank;
(2) injecting composite shielding glue solution into the pouring cavity through the pouring hole;
(3) drying the composite shielding glue solution through a drying tool;
(4) after drying, the sealing plates are fixed at the front end and the rear end of the outer sleeve layer through screws.
Further, the preparation method of the composite shielding glue solution comprises the following steps:
(1) weighing the following components as raw materials in percentage by weight: 0.05-6% of tungsten powder, 0.1-3% of bismuth powder, 0.2-5% of tin powder, 0.01-4% of lead powder, 20-25% of vinyl resin, 40-50% of epoxy resin and the balance of carbon fiber powder;
(2) the composite shielding glue solution can be obtained after the raw materials are mixed and stirred uniformly.
Further, the drying tool comprises a device shell, a workbench is arranged in the device shell, the left side and the right side of the workbench are respectively provided with a clamping assembly, the front side and the rear side of the workbench are respectively provided with a drying assembly, and the top of the workbench is provided with a glue injection assembly;
the clamping assembly comprises a clamping fixing plate, an upper limiting groove is formed in the top of the clamping fixing plate, a lower avoiding groove is formed in the bottom of the clamping fixing plate, the height of the lower avoiding groove is larger than that of the workbench, the width of the lower avoiding groove is larger than that of the workbench, two clamping plates are arranged on one side, opposite to the workbench, of the clamping fixing plate in parallel, and the clamping plates are used for clamping and fixing the outer sleeve layer;
the front side and the rear side of the workbench are respectively provided with at least one first positioning block, the first positioning block is rotatably provided with a first lead screw, the left side end and the right side end of the first lead screw are respectively provided with an external thread, the spiral directions of the external threads of the left side end and the right side end of the first lead screw are opposite, each first lead screw is respectively connected with an output shaft of a first motor, the bottoms of the two clamping fixing plates are respectively sleeved on the external threads of the left side end and the right side end of the two first lead screws in a threaded fit manner, and the first motor controls the first lead screws to rotate, so that the two clamping fixing plates are controlled to be close to or far away from the workbench at the same time;
the drying component comprises a drying fixed plate and a drying push plate; the drying fixed plate is fixed in the device shell, the drying push plate is movably arranged on one side of the drying fixed plate, and the drying push plate is pushed to move by a hydraulic cylinder;
the bottom of the drying push plate is provided with a push plate base, and a push rod of the hydraulic cylinder is connected with the push plate base;
a plurality of air outlet structures are arranged on the drying push plate in a matrix manner, each air outlet structure comprises an inward-concave fixing groove and an air outlet pipe arranged in the fixing groove, the length of each air outlet pipe is greater than the thickness of the drying push plate, and the fixing groove is positioned on the side opposite to the drying fixing plate;
a plurality of branch air inlet pipes are arranged on the drying fixing plate corresponding to the air outlet structure, all the branch air inlet pipes are communicated with a main air inlet pipe through a plurality of switching pipelines, and the branch air inlet pipes are connected with the air outlet pipe through corrugated pipes;
the drying push plate is also provided with a first ultraviolet curing assembly and a second ultraviolet curing assembly;
the first ultraviolet curing assembly comprises a second positioning block, a second lead screw, a first sliding block, a first ultraviolet lamp and a second motor; a second positioning block is respectively fixed at the upper end and the lower end of the left side wall and the right side wall of the drying push plate, a second lead screw is rotatably arranged between the two second positioning blocks, a first slide block is sleeved on the second lead screw in a threaded fit manner, a first ultraviolet lamp is fixed between the two first slide blocks, a first gear is arranged at the bottom of the second lead screw, the first gear is connected with a second gear fixed on a second motor through a first chain, the second motor is fixed on the push plate base, and the first ultraviolet lamp is positioned at one side of the air outlet end of the air outlet pipe;
the second ultraviolet curing component comprises a third positioning block, a third lead screw, a second sliding block, a second ultraviolet lamp and a third motor; the second positioning block is arranged on one side wall of the drying push plate, which is positioned at the air outlet end of the air outlet pipe, the left end and the right end of the side wall are respectively fixedly provided with a third positioning block, a third lead screw is rotatably arranged between the two third positioning blocks, the second slide block is sleeved on the third lead screw in a threaded fit manner, a second ultraviolet lamp is fixed between the two second slide blocks, the bottom of the third lead screw is provided with a third gear, the third gear is connected with a fourth gear fixed on a third motor through a second chain, the third motor is fixed on the push plate base, and the second ultraviolet lamp is positioned between the first ultraviolet lamp and the drying push plate;
the second motor controls the second screw rod to rotate so as to enable the first ultraviolet lamp to move up and down, and the third motor controls the third screw rod to rotate so as to enable the second ultraviolet lamp to move up and down;
the glue injection assembly comprises a glue injection pressing plate, the glue injection pressing plate is connected with an electric push rod, the electric push rod is fixed to the top of the device shell, a glue injection pipe is arranged on the glue injection pressing plate, the glue injection pipe can be inserted into a glue injection hole, and the glue injection pressing plate is in clearance fit with an upper limiting groove in the top of the clamping fixing plate.
Further, the length of the first ultraviolet lamp is greater than that of the second ultraviolet lamp.
Furthermore, the main air inlet pipe is connected with an air heater, and the air heater outputs dry air to the workbench through an air outlet pipe.
Further, the first ultraviolet lamp and the second ultraviolet lamp move in opposite directions.
The specific use method of the drying tool is as follows:
(1) prefabricating a lead plate and an outer sleeve layer, placing the lead plate in the outer sleeve layer, welding and fixing the outer sleeve layer on the lead plate along the edge of the lead plate, and covering a cover plate on the lead plate to obtain a material primary blank
(2) Placing the material primary blank on a workbench, and controlling two clamping assemblies to simultaneously approach the workbench through a first motor until the clamping plates are clamped and fixed on the outer sleeve layer;
(3) pressing the glue injection pressing plate downwards through the electric push plate, pressing the glue injection pressing plate in the upper limiting groove, simultaneously inserting the glue injection pipe into the glue injection hole, and injecting the composite shielding glue solution into the pouring cavity through the glue injection pipe;
(4) the drying push plate is pushed to the workbench through the hydraulic cylinder, the hot air blower is started to output dry air to the workbench through the air outlet pipe, and meanwhile, the first ultraviolet lamp and the second ultraviolet lamp are controlled to move up and down through the second motor and the third motor, and the moving directions of the first ultraviolet lamp and the second ultraviolet lamp are opposite;
(5) after the composite shielding glue solution is dried, cured and molded, the sealing plates are fixed at the front end and the rear end of the outer sleeve layer through screws.
The invention has the beneficial effects that:
the composite shielding layer is additionally arranged outside the lead plate, so that the lead plate is good in protection performance, safe and reliable, and meanwhile, the production process is provided, the efficiency is improved, and the safety of operators is ensured.
Drawings
Fig. 1 is a vertical sectional view of the present invention.
Fig. 2 is a horizontal sectional view of the present invention.
Fig. 3 is a structure diagram of the drying tool.
Fig. 4 is a sectional view taken along a-a in fig. 3.
FIG. 5 shows a view of the structure of the clamping assembly.
Fig. 6 is a structural view of the drying assembly.
Fig. 7 is a top view of the drying assembly.
Reference numerals
The lead plate comprises a lead plate 1, a bottom plate 2, a first side plate 3, a second side plate 4, a cover plate 5, a first blocking wall 6, a second blocking wall 7, a third blocking wall 8, a transparent blocking plate 9, a composite shielding layer 10, a plug block 11, a pouring hole 12, a sealing plate 13, a device shell 14, a workbench 15, a clamping assembly 16, a drying assembly 17, a glue injection assembly 18, a clamping fixing plate 19, an upper limiting groove 20, a lower avoiding groove 21, a first positioning block 22, a first lead screw 23, a first motor 24, a drying fixing plate 25, a drying push plate 26, a hydraulic cylinder 27, a push plate base 28, a gas outlet structure 29, a fixing groove 30, a gas outlet pipe 31, a branch gas inlet pipe 32, a main gas inlet pipe 33, a corrugated pipe 34, a second positioning block 35, a second lead screw 36, a first sliding block 37, a first ultraviolet lamp 38, a second motor 39, a first gear 40, a first chain 41, a second gear 43, a third positioning block 44, a third lead screw 45, a second sliding block 46, a third sliding block 8, a third sliding block 20, a sealing plate, a, The device comprises a second ultraviolet lamp 47, a third motor 48, a third gear 49, a second chain 50, a fourth gear 52, a glue injection pressing plate 53, an electric push rod 54, a glue injection pipe 55 and a clamping plate 56.
Detailed Description
In order to make the technical scheme of the invention clearer and clearer, the invention is further described with reference to the accompanying drawings, and any scheme obtained by carrying out equivalent replacement and conventional reasoning on the technical characteristics of the technical scheme of the invention falls into the protection scope of the invention.
Example one
A shielding material for medical X-ray protection comprises a lead plate 1 and a jacket layer;
the outer sleeve layer comprises a bottom plate 2, a first side plate 3 and a second side plate 4 are respectively and vertically arranged on the left side and the right side of the bottom plate, and cover plates 5 are arranged at the tops of the first side plate and the second side plate; the front side and the rear side of the first side plate are respectively provided with a first blocking wall 6 which is turned inwards, the front side and the rear side of the second side plate are respectively provided with a second blocking wall 7 which is turned inwards, the front side and the rear side of the bottom plate are respectively provided with a third blocking wall 8 which is turned upwards, and the third blocking walls positioned on the same side are connected with the bottoms of the first blocking wall and the second blocking wall;
the lead plate is arranged on the bottom plate, the width of the lead plate is smaller than that of the first side plate, the length of the lead plate is equal to the distance between the first side plate and the second side plate, two first inserting grooves are formed in the bottom plate, the first inserting grooves are parallel to the length direction of the lead plate and are located on the front side and the rear side of the lead plate, a transparent baffle plate 9 is vertically inserted and fixed in each first inserting groove, a pouring cavity is formed between each transparent baffle plate and the lead plate, and a composite shielding layer 10 is poured in the pouring cavity;
the cover plate is covered on the top of the lead plate, the cover plate is provided with a plug block 11, the plug block is arranged on the top of the pouring cavity in a transition fit mode, and the cover plate is provided with a pouring hole 12 communicated with the plug block;
the front end and the rear end of the outer sleeve layer are respectively provided with a sealing plate 13, and the sealing plates are fixed on the first retaining wall, the second retaining wall, the third retaining wall and the cover plate through screws.
Furthermore, the outer sleeve layer and the sealing plate are both made of stainless steel.
Further, the production process of the shielding material comprises the following steps:
(1) prefabricating a lead plate and a jacket layer, placing the lead plate in the jacket layer, welding and fixing the jacket layer on the lead plate along the edge of the lead plate, and covering a cover plate on the lead plate to obtain a material primary blank;
(2) injecting composite shielding glue solution into the pouring cavity through the pouring hole;
(3) drying the composite shielding glue solution through a drying tool;
(4) after drying, the sealing plates are fixed at the front end and the rear end of the outer sleeve layer through screws.
Further, the preparation method of the composite shielding glue solution comprises the following steps:
(1) weighing the following components as raw materials in percentage by weight: 1% of tungsten powder, 0.1-3% of bismuth powder, 1% of tin powder, 1% of lead powder, 22% of vinyl resin, 44% of epoxy resin and the balance of carbon fiber powder;
(2) the composite shielding glue solution can be obtained after the raw materials are mixed and stirred uniformly.
Further, the drying tool comprises a device shell 14, a workbench 15 is arranged in the device shell, a clamping assembly 16 is arranged on each of the left side and the right side of the workbench, a drying assembly 17 is arranged on each of the front side and the rear side of the workbench, and a glue injection assembly 18 is arranged at the top of the workbench;
the clamping assembly comprises a clamping fixing plate 19, an upper limiting groove 20 is formed in the top of the clamping fixing plate, a lower avoiding groove 21 is formed in the bottom of the clamping fixing plate, the height of the lower avoiding groove is larger than that of the workbench, the width of the lower avoiding groove is larger than that of the workbench, two clamping plates 56 are arranged on one side, opposite to the workbench, of the clamping fixing plate in parallel, and the clamping plates are used for clamping and fixing the outer sleeve layer;
the front side and the rear side of the workbench are respectively provided with at least one first positioning block 22, the first positioning block is rotatably provided with a first lead screw 23, the left side end and the right side end of the first lead screw are respectively provided with an external thread, the spiral directions of the external threads of the left side end and the right side end of the first lead screw are opposite, each first lead screw is respectively connected with an output shaft of a first motor 24, the bottoms of the two clamping fixing plates are respectively sleeved on the external threads of the left side end and the right side end of the two first lead screws in a threaded fit manner, and the first motor controls the first lead screws to rotate, so that the two clamping fixing plates are controlled to be close to or far away from the workbench;
the drying component comprises a drying fixed plate 25 and a drying push plate 26; the drying fixed plate is fixed in the device shell, the drying push plate is movably arranged on one side of the drying fixed plate, and the drying push plate is pushed to move by a hydraulic cylinder 27;
the bottom of the drying push plate is provided with a push plate base 28, and a push rod of the hydraulic cylinder is connected with the push plate base;
a plurality of air outlet structures 29 are arranged on the drying push plate in a matrix manner, each air outlet structure comprises an inwards concave fixing groove 30 and an air outlet pipe 31 arranged in the fixing groove, the length of each air outlet pipe is greater than the thickness of the drying push plate, and the fixing grooves are positioned on the opposite side of the drying fixed plate;
a plurality of branch air inlet pipes 32 are arranged on the drying fixing plate corresponding to the air outlet structure, all the branch air inlet pipes are communicated with a main air inlet pipe 33 through a plurality of switching pipelines, and the branch air inlet pipes are connected with the air outlet pipe through corrugated pipes 34;
the drying push plate is also provided with a first ultraviolet curing assembly and a second ultraviolet curing assembly;
the first ultraviolet curing component comprises a second positioning block 35, a second lead screw 36, a first sliding block 37, a first ultraviolet lamp 38 and a second motor 39; a second positioning block is respectively fixed at the upper end and the lower end of the left side wall and the right side wall of the drying push plate, a second lead screw is rotatably arranged between the two second positioning blocks, the first slide block is sleeved on the second lead screw in a threaded fit manner, a first ultraviolet lamp is fixed between the two first slide blocks, a first gear 40 is arranged at the bottom of the second lead screw, the first gear is connected with a second gear 43 fixed on a second motor through a first chain 41, the second motor is fixed on the base of the push plate, and the first ultraviolet lamp is positioned at one side of the air outlet end of the air outlet pipe;
the second ultraviolet curing assembly comprises a third positioning block 44, a third lead screw 45, a second sliding block 46, a second ultraviolet lamp 47 and a third motor 48; the second positioning block is arranged on one side wall of the drying push plate, which is positioned at the air outlet end of the air outlet pipe, the left end and the right end of the side wall are respectively fixedly provided with a third positioning block, a third lead screw is rotatably arranged between the two third positioning blocks, the second lead screw is sleeved with the second slider in a threaded fit manner, a second ultraviolet lamp is fixed between the two second sliders, the bottom of the third lead screw is provided with a third gear 49, the third gear is connected with a fourth gear 52 fixed on a third motor through a second chain 50, the third motor is fixed on the base of the push plate, and the second ultraviolet lamp is positioned between the first ultraviolet lamp and the drying push plate;
the second motor controls the second screw rod to rotate so as to enable the first ultraviolet lamp to move up and down, and the third motor controls the third screw rod to rotate so as to enable the second ultraviolet lamp to move up and down;
the glue injection assembly comprises a glue injection pressing plate 53, the glue injection pressing plate is connected with an electric push rod 54, the electric push rod is fixed to the top of the device shell, a glue injection pipe 55 is arranged on the glue injection pressing plate and can be inserted into the glue injection hole, the glue injection pressing plate is in clearance fit with an upper limiting groove in the top of the clamping fixing plate, the glue injection pipe is communicated with the glue storage groove, and composite shielding glue is stored in the glue storage groove.
Further, the length of the first ultraviolet lamp is greater than that of the second ultraviolet lamp.
Furthermore, the main air inlet pipe is connected with an air heater, and the air heater outputs dry air to the workbench through an air outlet pipe.
Further, the first ultraviolet lamp and the second ultraviolet lamp move in opposite directions.
The specific use method of the drying tool comprises the following steps:
(1) prefabricating a lead plate and an outer sleeve layer, placing the lead plate in the outer sleeve layer, welding and fixing the outer sleeve layer on the lead plate along the edge of the lead plate, and covering a cover plate on the lead plate to obtain a material primary blank
(2) Placing the material primary blank on a workbench, and controlling two clamping components to simultaneously approach the workbench through a first motor until the clamping plates are clamped and fixed on the outer sleeve layer;
(3) pressing the glue injection pressing plate downwards through the electric push plate, pressing the glue injection pressing plate in the upper limiting groove, simultaneously inserting the glue injection pipe into the glue injection hole, and injecting the composite shielding glue solution into the pouring cavity through the glue injection pipe;
(4) the drying push plate is pushed to the workbench through the hydraulic cylinder, the hot air blower is started to output dry air to the workbench through the air outlet pipe, and meanwhile, the first ultraviolet lamp and the second ultraviolet lamp are controlled to move up and down through the second motor and the third motor, and the moving directions of the first ultraviolet lamp and the second ultraviolet lamp are opposite;
(5) and after the composite shielding glue solution is dried, cured and molded, fixing the sealing plates at the front end and the rear end of the outer sleeve layer through screws.
Example two
The shielding material for medical X-ray protection is different from the shielding material of the first embodiment in that:
the preparation method of the composite shielding glue solution comprises the following steps:
(1) weighing the following components as raw materials in percentage by weight: 3% of tungsten powder, 2% of bismuth powder, 3% of tin powder, 0.05% of lead powder, 25% of vinyl resin, 50% of epoxy resin and the balance carbon fiber powder;
(2) the composite shielding glue solution can be obtained after the raw materials are mixed and stirred uniformly.
EXAMPLE III
The shielding material for medical X-ray protection is different from the shielding material of the first embodiment in that:
the preparation method of the composite shielding glue solution comprises the following steps:
(1) weighing the following components as raw materials in percentage by weight: 0.5% of tungsten powder, 0.1-3% of bismuth powder, 2% of tin powder, 3% of lead powder, 20% of vinyl resin, 40% of epoxy resin and the balance of carbon fiber powder;
(2) the composite shielding glue solution can be obtained after the raw materials are mixed and stirred uniformly.
Claims (6)
1. A shielding material for medical X-ray protection is characterized by comprising a lead plate and an outer sleeve layer;
the outer sleeve layer comprises a bottom plate, a first side plate and a second side plate are respectively and vertically arranged on the left side and the right side of the bottom plate, and cover plates are arranged at the tops of the first side plate and the second side plate; the front side and the rear side of the first side plate are respectively provided with a first blocking wall which is turned inwards, the front side and the rear side of the second side plate are respectively provided with a second blocking wall which is turned inwards, the front side and the rear side of the bottom plate are respectively provided with a third blocking wall which is turned upwards, and the third blocking wall positioned on the same side is connected with the bottoms of the first blocking wall and the second blocking wall;
the lead plate is arranged on the bottom plate, the width of the lead plate is smaller than that of the first side plate, the length of the lead plate is equal to the distance between the first side plate and the second side plate, two first inserting grooves are formed in the bottom plate, the first inserting grooves are parallel to the length direction of the lead plate and are located on the front side and the rear side of the lead plate, a transparent baffle is vertically inserted and fixed in each first inserting groove, a pouring cavity is formed between each transparent baffle and the lead plate, and a composite shielding layer is poured in the pouring cavity;
the cover plate is covered on the top of the lead plate, the cover plate is provided with a plug block, the plug block is arranged on the top of the pouring cavity in a transition fit mode, and the cover plate is provided with a pouring hole communicated with the plug block;
the front end and the rear end of the outer sleeve layer are respectively provided with a sealing plate, and the sealing plates are fixed on the first retaining wall, the second retaining wall, the third retaining wall and the cover plate through screws.
2. A shielding material for X-ray protection in medical applications as claimed in claim 1, wherein the jacket and the sealing plate are made of stainless steel.
3. A shielding material for medical X-ray protection according to claim 1, characterized in that the shielding material is produced by the following process:
(1) prefabricating a lead plate and a jacket layer, placing the lead plate in the jacket layer, welding and fixing the jacket layer on the lead plate along the edge of the lead plate, and covering a cover plate on the lead plate to obtain a material primary blank;
(2) injecting composite shielding glue solution into the pouring cavity through the pouring hole;
(3) drying the composite shielding glue solution through a drying tool;
(4) after drying, the sealing plates are fixed at the front end and the rear end of the outer sleeve layer through screws.
4. A shielding material for medical X-ray protection according to claim 3, wherein the composite shielding glue solution is prepared by the following method:
(1) weighing the following components as raw materials in percentage by weight: 0.05-6% of tungsten powder, 0.1-3% of bismuth powder, 0.2-5% of tin powder, 0.01-4% of lead powder, 20-25% of vinyl resin, 40-50% of epoxy resin and the balance of carbon fiber powder;
(2) the composite shielding glue solution can be obtained after the raw materials are mixed and stirred uniformly.
5. The shielding material for medical X-ray protection as claimed in claim 3, wherein the drying tool comprises a device housing, a worktable is arranged in the device housing, a clamping assembly is respectively arranged on the left side and the right side of the worktable, a drying assembly is respectively arranged on the front side and the rear side of the worktable, and a glue injection assembly is arranged on the top of the worktable;
the clamping assembly comprises a clamping fixing plate, an upper limiting groove is formed in the top of the clamping fixing plate, a lower avoiding groove is formed in the bottom of the clamping fixing plate, the height of the lower avoiding groove is larger than that of the workbench, the width of the lower avoiding groove is larger than that of the workbench, two clamping plates are arranged on one side, opposite to the workbench, of the clamping fixing plate in parallel, and the clamping plates are used for clamping and fixing the outer sleeve layer;
the front side and the rear side of the workbench are respectively provided with at least one first positioning block, the first positioning block is rotatably provided with a first lead screw, the left side end and the right side end of the first lead screw are respectively provided with an external thread, the spiral directions of the external threads of the left side end and the right side end of the first lead screw are opposite, each first lead screw is respectively connected with an output shaft of a first motor, the bottoms of the two clamping fixing plates are respectively sleeved on the external threads of the left side end and the right side end of the two first lead screws in a threaded fit manner, and the first motor controls the first lead screws to rotate, so that the two clamping fixing plates are controlled to be close to or far away from the workbench at the same time;
the drying component comprises a drying fixed plate and a drying push plate; the drying fixed plate is fixed in the device shell, the drying push plate is movably arranged on one side of the drying fixed plate, and the drying push plate is pushed to move by a hydraulic cylinder;
the bottom of the drying push plate is provided with a push plate base, and a push rod of the hydraulic cylinder is connected with the push plate base;
the drying push plate is provided with a plurality of air outlet structures in a matrix form, each air outlet structure comprises an inwards-concave fixing groove and an air outlet pipe arranged in the fixing groove, the length of each air outlet pipe is greater than the thickness of the drying push plate, and the fixing groove is positioned on the side opposite to the drying fixing plate;
a plurality of branch air inlet pipes are arranged on the drying fixing plate corresponding to the air outlet structure, all the branch air inlet pipes are communicated with a main air inlet pipe through a plurality of switching pipelines, and the branch air inlet pipes are connected with the air outlet pipe through corrugated pipes;
the drying push plate is also provided with a first ultraviolet curing assembly and a second ultraviolet curing assembly;
the first ultraviolet curing assembly comprises a second positioning block, a second lead screw, a first sliding block, a first ultraviolet lamp and a second motor; a second positioning block is respectively fixed at the upper end and the lower end of the left side wall and the right side wall of the drying push plate, a second lead screw is rotatably arranged between the two second positioning blocks, a first slide block is sleeved on the second lead screw in a threaded fit manner, a first ultraviolet lamp is fixed between the two first slide blocks, a first gear is arranged at the bottom of the second lead screw, the first gear is connected with a second gear fixed on a second motor through a first chain, the second motor is fixed on the push plate base, and the first ultraviolet lamp is positioned at one side of the air outlet end of the air outlet pipe;
the second ultraviolet curing component comprises a third positioning block, a third lead screw, a second sliding block, a second ultraviolet lamp and a third motor; the second positioning block is arranged on one side wall of the drying push plate, which is positioned at the air outlet end of the air outlet pipe, the left end and the right end of the side wall are respectively fixedly provided with a third positioning block, a third lead screw is rotatably arranged between the two third positioning blocks, the second slide block is sleeved on the third lead screw in a threaded fit manner, a second ultraviolet lamp is fixed between the two second slide blocks, the bottom of the third lead screw is provided with a third gear, the third gear is connected with a fourth gear fixed on a third motor through a second chain, the third motor is fixed on the push plate base, and the second ultraviolet lamp is positioned between the first ultraviolet lamp and the drying push plate;
the second motor controls the second screw rod to rotate so as to enable the first ultraviolet lamp to move up and down, and the third motor controls the third screw rod to rotate so as to enable the second ultraviolet lamp to move up and down;
the glue injection assembly comprises a glue injection pressing plate, the glue injection pressing plate is connected with an electric push rod, the electric push rod is fixed to the top of the device shell, a glue injection pipe is arranged on the glue injection pressing plate, the glue injection pipe can be inserted into a glue injection hole, and the glue injection pressing plate is in clearance fit with an upper limiting groove in the top of the clamping fixing plate.
6. The shielding material for medical X-ray protection as claimed in claim 5, wherein the length of the first ultraviolet lamp is greater than the length of the second ultraviolet lamp.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811144490.7A CN109585050B (en) | 2018-09-29 | 2018-09-29 | Shielding material for medical X-ray protection and production process thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811144490.7A CN109585050B (en) | 2018-09-29 | 2018-09-29 | Shielding material for medical X-ray protection and production process thereof |
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| CN109585050B true CN109585050B (en) | 2022-07-26 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2117964A (en) * | 1982-04-02 | 1983-10-19 | Amersham Int Plc | Radiation shielding bricks |
| JP2016075547A (en) * | 2014-10-06 | 2016-05-12 | 株式会社日立プラントコンストラクション | Lead plate mat for radiation shield, and lead plate system for radiation shield |
| CN107755666A (en) * | 2017-11-23 | 2018-03-06 | 山东沃顿核辐射环境安全装备有限公司 | Automation shielding stereotype pouring device and shielding stereotype production technology |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7973298B2 (en) * | 2007-10-10 | 2011-07-05 | Kobe Steel, Ltd. | Transport/storage cask for radioactive material |
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2018
- 2018-09-29 CN CN201811144490.7A patent/CN109585050B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2117964A (en) * | 1982-04-02 | 1983-10-19 | Amersham Int Plc | Radiation shielding bricks |
| JP2016075547A (en) * | 2014-10-06 | 2016-05-12 | 株式会社日立プラントコンストラクション | Lead plate mat for radiation shield, and lead plate system for radiation shield |
| CN107755666A (en) * | 2017-11-23 | 2018-03-06 | 山东沃顿核辐射环境安全装备有限公司 | Automation shielding stereotype pouring device and shielding stereotype production technology |
Non-Patent Citations (1)
| Title |
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| 医用射线防护屏蔽材料的研究及应用;张桂敏等;《中国辐射卫生》;20050715;第14卷(第03期);184-185 * |
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