CN102651246A - Production method of nuclear radiation protection woven alloy lead fiber yarn chip shielding clothes - Google Patents
Production method of nuclear radiation protection woven alloy lead fiber yarn chip shielding clothes Download PDFInfo
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- CN102651246A CN102651246A CN2012101556805A CN201210155680A CN102651246A CN 102651246 A CN102651246 A CN 102651246A CN 2012101556805 A CN2012101556805 A CN 2012101556805A CN 201210155680 A CN201210155680 A CN 201210155680A CN 102651246 A CN102651246 A CN 102651246A
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Abstract
The invention discloses a production method of nuclear radiation protection woven alloy lead fiber yarn chip shielding clothes and relates to the technical field of nuclear radiation protection biological shielding. The production method disclosed by the invention comprises the following steps: cutting a nuclear radiation shielding product, namely a woven alloy lead fiber yarn chip into pieces, then sewing to form naked clothes, respectively spraying anti-nuclear radiation glue serous fluid at seams and needle holes of the naked clothes, and further performing calendering and vulcanization shaping on the naked clothes under high-temperature conditions; and respectively wrapping thermoplastic polyurethane elastomer rubber base cloth inside and outside the shaped naked clothes, and performing heat sealing through a high-frequency machine. The production method disclosed by the invention has the characteristics of large adjustable range of lead equivalent, small non-uniformity in the lead equivalent, excellent shielding effect, good flexibility, capability of saving the consumption of raw materials, convenience in wearing, durability, flame retardance, water resistance, oil resistance, capability of removing pollution, disposal and the like.
Description
Technical field
The present invention relates to nuclear radiation protection biological shielding technical field.
Background technology
Research shows; The external exposure line of nuclear power station is mainly gamma-rays, and it is mainly from the fission product of nuclear reaction with by the pipeline of neutron activation and valve, because the appearance of activation corrosion product in the pipeline; Cause the deposition of radioactive particulate in the pipeline; Make control zone a lot of upkeep operation site surrounding dosage higher, increased staff's external irradiation dose, general employing shielding is removed.Therefore, on shielding material is selected, make every effort to highly effective and safe, inexpensive and save the space, select steel, lead, normal concrete and loaded concrete etc. usually.The intensity of steel is better, but price is higher; Concrete is more cheap than heavy metal, but density is little, and shielding thickness is big; Plumbous advantage is that density is high, fusing point is low, anti-corrosion, gamma-rays is had good adsorption property and is difficult for by through characteristic, is easy to cast and shielding thickness is less relatively, so lead is first-selected shielding material.
At present; The shielding goods (plumbous clothing or lead shield) that control zone biological shielding system adopts in the nuclear power station of operation mainly are: " the no gap solid metal block shape stereotype " of roll forming, this metal stereotype exist that lead equivalent is low, conformal performance can be poor, the generation waste material is many, resource utilization is not high; Product is heavy, and it is big to cause shielding operation labor intensity, and staff's exposure time is long, dosage is big; Be prone to cause heat-insulation layer distortion, tenesmus, the control zone roentgen dose X increases, and safety coefficient is low, and potential risk is big; Be not suitable for staff's shielding; And be difficult for decontamination, drawback such as serviceable life is short.Therefore, stereotype shielding goods are difficult to compatibility, sustainable development of incompatibility nuclear industry and the needs that people-oriented on shield effectiveness and structure function.
Research shows that anti-nuclear radiation biological shielding goods also must possess good physical and mechanical property (obdurability, thermal stability etc.) except that will having higher shield effectiveness.It is reported that current, the material and the goods that are used for anti-nuclear radiation biological shielding mainly contain following four types.One type is that to use lead with general industry be main, the no gap derby shape stereotype of roll extrusion or moulding by casting, lead brick, sheet lead concrete etc.; Second type is to be main with lead powder, and rubber, polyethylene foam etc. are as the coating of the mixed flexible article that is composited of base-material, tackifier etc.; The 3rd type be with no gap derby shape sheet lead as inner core, ectonexine coats crosslinked foaming material and synthetic rubber polyamide fibre material product; The 4th type is to make light-weight high-strength materials such as cenosphere with heavy metals such as lead.Facts have proved that although stereotype, the anti-nuclear radiation effect of sheet lead goods are preferable, use amount is big when setting up shielding harness, it is big to build difficulty, inefficiency, and it is many to produce waste material, and potential risk is big; And stereotype goods conformal performance is poor, can not bend, and careless manipulation is prone to drop and hurts sb.'s feelings or damage screening clothing.And mixed goods, coating and the tackifier that is composited of lead powder and rubber, polyethylene foam-material; Though have certain flexibility,, be difficult in base-material evenly mixed because the lead powder particle is prone to gather; So shielding properties is inhomogeneous; And lead equivalent is low, rubber and tygon etc. are prone to agingly, influences shield effectiveness, brings by the danger of radiation to the staff.The cenosphere light-weight high-strength material that heavy metals such as lead are made, though anti-nuclear radiation performance is excellent, cost is high, cost is big, generally is used for the anti-nuclear radiation of nuclear rocket engine and leaks.
Summary of the invention
The object of the invention be to invent a kind of in light weight, be convenient to bend, be difficult for tenesmus and cause the woven alloy lead fiber silk of the nuclear radiation protection chip screening clothing of skewness.
The present invention is stitched into naked clothes with the woven alloy lead fiber silk of nuclear radiation shield goods chip after cut-parts, after the seam crossing of naked clothes and pinprick place are respectively with anti-nuclear radiation rubber cement liquid spraying, with naked obey in the hot conditions decurrence press, the sulfuration typing; In the inside and outside TPUE rubber base cloth that wraps up respectively of naked clothes of typing, hotly join again with the high frequency machine.
Hot conditions according to the invention is 160～200 ℃.
The working current of said high frequency machine is 0.3～0.4A, and working temperature is 60～220 ℃, and pressure is 4～6 standard atmospheric pressures.
Characteristics of the present invention are: the lead equivalent adjustable extent is big, and the lead equivalent unevenness is little, and shield effectiveness is excellent, and flexility is good, but possesses characteristics such as the consumption of saving material, convenient dress, durable in use, fire-retardant, waterproof, grease proofing decontamination and disposal simultaneously.
The woven alloy lead fiber silk of nuclear radiation shield goods according to the invention chip comprises the plumbous fibre fabric layer of two-layer at least nuclear radiation shield alloy and one deck nylon net cloth layer at least; Plumbous fibre fabric layer of said nuclear radiation shield alloy and nylon wire layer of cloth be arranged superposed spaced reciprocally, at the plumbous fibre fabric interlayer of adjacent nuclear radiation shield alloy adhesive-layer is set.
The present invention can be easily according to the product nuclear radiation shield equivalent weight requirements that designs; Under the effect of glue, bonding each other by the plumbous fibre fabric of multilayer nuclear radiation shield alloy through nylon net cloth, the product good uniformity of formation; Can in use not deform, drop, product weight is light.
Anti-nuclear radiation rubber cement liquid according to the invention is mixed by natural gum, promoter, zinc paste, stearic acid, aging resister, rosin, precipitated calcium carbonate and sulphur and forms, and the mixing quality of natural gum, promoter, zinc paste, stearic acid, aging resister, rosin, precipitated calcium carbonate and sulphur is than being 1000:10～12:50:7～9:5:20:200:20～22.
Embodiment
One, form the plumbous fibre fabric of nuclear radiation shield alloy:
Cut-off directly is around on the cop of weaving usefulness for 0.01mm～1mm nuclear radiation shield alloy lead fiber silk.
Cut-off is that the spun glass silk thread of 0.05～0.5mm passes for 0.01mm～1mm nuclear radiation shield alloy lead fiber silk and diameter directly, and controls per 3～7cm and be provided with a spun glass silk thread.
Weave the plumbous fibre fabric of formation nuclear radiation shield alloy through loom.
Two, form chip:
Respectively plumbous fibre fabric of the nuclear radiation shield alloy after the woven typing and nylon net cloth are cut into same shape and big or small sheet material.
Plumbous fibre fabric of nuclear radiation shield alloy and nylon net cloth are put into mould spaced reciprocally; Put into wooden model, once (as the typing alloy lead fiber silk sheet thickness that is made into is 0.5mm, and it is 5mmpb that the required chip lead equivalent of the product of manufacturing requires with rubber cement spraying whenever to put one deck; Then need put 10 layers); And, under the condition of 160～200 ℃ of sulfuration high temperature, act on (because of the number of plies of chip is decided) after 5～10 minutes through 30 tons of sulfide stresses; Be cooled to normal temperature, from mould, take out the woven alloy lead fiber silk of the nuclear radiation shield goods chip of sulfuration typing.
The product configurations of the woven alloy lead fiber silk of nuclear radiation shield goods chip is: by the plumbous fibre fabric layer of two-layer at least nuclear radiation shield alloy and one deck nylon net cloth layer at least; Plumbous fibre fabric layer of nuclear radiation shield alloy and nylon wire layer of cloth be arranged superposed spaced reciprocally, at the plumbous fibre fabric interlayer of adjacent nuclear radiation shield alloy adhesive-layer is set.
Three, produce screening clothing:
1, the anti-nuclear radiation rubber cement liquid of preparation:
Natural gum, promoter, zinc paste, stearic acid, aging resister, rosin, precipitated calcium carbonate and the sulphur mass ratio with 1000:10～12:50:7～9:5:20:200:20～22 is mixed, for use.
2, the woven alloy lead fiber silk of nuclear radiation shield goods chip is stitched into naked clothes after cut-parts.
3, after the seam crossing of naked clothes and pinprick place are respectively with anti-nuclear radiation rubber cement liquid spraying, with naked obey in 160～200 ℃ of hot conditions decurrences press, 5～10 minutes (time length is decided by the thickness of naked clothes) of sulfuration typing, be cooled to normal temperature.
4, in the inside and outside TPUE rubber base cloth that wraps up respectively of naked clothes of typing; And with interior outerwrap base cloth slit place as on the special template; Hotly join with the high frequency machine, at electric current 0.3～0.4A, 60～220 ℃ of temperature; Under the pressure effect of 4～6 standard atmospheric pressures, hotly join typing through 2～3 seconds.
Four, the technical indicator of invention product
A, lead equivalent adjustable extent 1-10mmpb, lead equivalent is inhomogeneous≤mean value 10%.
B, as being that the chip of 5mmpb is processed screening clothing with lead equivalent, under the condition of radioactive source nucleic: 137Cs, activity: 3.7 * 107 β q; Dosemeter 45/p, its calibration factor detects down for the 0.1-1usv/h environment, and environmental dose rate≤80usv/h improves 54% than tradition shielding goods shield effectiveness.
C, soft fit shape, arbitrary shape uses back recovery rate 100%, and serviceable life >=3 year prolong one times than tradition shielding goods serviceable life.
D, external coating tensile strength >=700N/cm2, fire resistance oxygen index >=27%, but waterproof, grease proofing decontamination and disposal.
Claims (6)
1. the working method of the woven alloy lead fiber silk of nuclear radiation protection chip screening clothing; It is characterized in that the woven alloy lead fiber silk of nuclear radiation shield goods chip is stitched into naked clothes after cut-parts; After the seam crossing of naked clothes and pinprick place are respectively with anti-nuclear radiation rubber cement liquid spraying, with naked obey in the hot conditions decurrence press, the sulfuration typing; In the inside and outside TPUE rubber base cloth that wraps up respectively of naked clothes of typing, hotly join again with the high frequency machine.
2. according to the working method of the woven alloy lead fiber silk of the said nuclear radiation protection of claim 1 chip screening clothing, it is characterized in that said hot conditions is 160～200 ℃.
3. according to the working method of the woven alloy lead fiber silk of the said nuclear radiation protection of claim 1 chip screening clothing, the working current that it is characterized in that said high frequency machine is 0.3～0.4A, and working temperature is 60～220 ℃, and pressure is 4～6 standard atmospheric pressures.
4. according to the working method of claim 1 or the woven alloy lead fiber silk of 2 or 3 said nuclear radiation protections chip screening clothing; It is characterized in that the woven alloy lead fiber silk of said nuclear radiation shield goods chip comprises the plumbous fibre fabric layer of two-layer at least nuclear radiation shield alloy and one deck nylon net cloth layer at least; Plumbous fibre fabric layer of said nuclear radiation shield alloy and nylon wire layer of cloth be arranged superposed spaced reciprocally, at the plumbous fibre fabric interlayer of adjacent nuclear radiation shield alloy adhesive-layer is set.
5. according to the working method of the woven alloy lead fiber silk of the said nuclear radiation protection of claim 1 chip screening clothing, it is characterized in that said anti-nuclear radiation rubber cement liquid is mixed by natural gum, promoter, zinc paste, stearic acid, aging resister, rosin, precipitated calcium carbonate and sulphur to form.
6. according to the working method of the woven alloy lead fiber silk of the said nuclear radiation protection of claim 5 chip screening clothing, the mixing quality that it is characterized in that said natural gum, promoter, zinc paste, stearic acid, aging resister, rosin, precipitated calcium carbonate and sulphur is than being 1000:10～12:50:7～9:5:20:200:20～22.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101556805A CN102651246A (en) | 2012-05-19 | 2012-05-19 | Production method of nuclear radiation protection woven alloy lead fiber yarn chip shielding clothes |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012101556805A CN102651246A (en) | 2012-05-19 | 2012-05-19 | Production method of nuclear radiation protection woven alloy lead fiber yarn chip shielding clothes |
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| CN102651246A true CN102651246A (en) | 2012-08-29 |
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| CN2012101556805A Pending CN102651246A (en) | 2012-05-19 | 2012-05-19 | Production method of nuclear radiation protection woven alloy lead fiber yarn chip shielding clothes |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103774330A (en) * | 2014-01-13 | 2014-05-07 | 扬州锦江有色金属有限公司 | Nuclear radiation protection fabric |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06128447A (en) * | 1991-09-12 | 1994-05-10 | Toyama Pref Gov | Material for protecting from x-ray and radiation |
| CN2425768Y (en) * | 2000-03-22 | 2001-04-04 | 淄博市临淄镭射技术研究所 | Radiation-resistant fabric |
| CN102204735A (en) * | 2011-04-14 | 2011-10-05 | 吴荣光 | Process for manufacturing upper |
| CN102219941A (en) * | 2011-03-28 | 2011-10-19 | 扬州锦江有色金属有限公司 | Glue for nuclear-radiation shielding lead garment and production method thereof |
| CN102220515A (en) * | 2011-03-28 | 2011-10-19 | 扬州锦江有色金属有限公司 | Lead alloy bar serving as material of nuclear radiation shielding product and production method of lead ally bar |
| CN202115039U (en) * | 2011-03-28 | 2012-01-18 | 扬州锦江有色金属有限公司 | Face fabric for nuclear radiation shielded lead garment |
-
2012
- 2012-05-19 CN CN2012101556805A patent/CN102651246A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06128447A (en) * | 1991-09-12 | 1994-05-10 | Toyama Pref Gov | Material for protecting from x-ray and radiation |
| CN2425768Y (en) * | 2000-03-22 | 2001-04-04 | 淄博市临淄镭射技术研究所 | Radiation-resistant fabric |
| CN102219941A (en) * | 2011-03-28 | 2011-10-19 | 扬州锦江有色金属有限公司 | Glue for nuclear-radiation shielding lead garment and production method thereof |
| CN102220515A (en) * | 2011-03-28 | 2011-10-19 | 扬州锦江有色金属有限公司 | Lead alloy bar serving as material of nuclear radiation shielding product and production method of lead ally bar |
| CN202115039U (en) * | 2011-03-28 | 2012-01-18 | 扬州锦江有色金属有限公司 | Face fabric for nuclear radiation shielded lead garment |
| CN102204735A (en) * | 2011-04-14 | 2011-10-05 | 吴荣光 | Process for manufacturing upper |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103774330A (en) * | 2014-01-13 | 2014-05-07 | 扬州锦江有色金属有限公司 | Nuclear radiation protection fabric |
| CN103774330B (en) * | 2014-01-13 | 2015-03-25 | 扬州锦江有色金属有限公司 | Nuclear radiation protection fabric |
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| CB03 | Change of inventor or designer information |
Inventor after: Yang Donghui Inventor before: Yu Fengyuan |
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| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: YU FENGYUAN TO: YANG DONGHUI |
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Application publication date: 20120829 |