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Electric arc spraying type tube wire with gamma-ray radiation shielding type coating

A radiation shielding, tubular wire technology, applied in coating, metal material coating process, melt spraying, etc., can solve the problem of lead poisoning, inability to coat workpieces and facilities in real time, lead in composite shielding materials, etc. problem, to achieve the effect of reducing the occupied space, good attenuation, and high packing density

Active Publication Date: 2017-05-10
JIANGXI HENGDA HI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the composite shielding material still contains lead. On the one hand, lead poisoning cannot be eliminated, and in addition, it cannot be coated on the protected workpiece and facilities in real time. Therefore, preparing an ultra-thin shielding coating for protecting gamma radiation will have a lot of benefits. Broad application prospects

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Take tungsten carbide 30, tellurite (α-TeO2) 25, molybdenum iron (Mo55) 13, cobalt copper (Co15) 11, aluminum 10, high carbon ferrochrome 8, boron iron 3. Stir the above-mentioned powder mixture with a V-shaped powder mixer, add it to a U-shaped 0.5mm thick nickel strip with a certain shape, the filling rate is 35%, and make it into a φ2.0mm strip by rolling and drawing. Tubular wire, using arc spraying equipment, sprayed a 2.5mm thick coating on the unsandblasted Q235 steel plate, after cooling, peeled off the coating, and tested its radiation shielding. The radiation shielding efficiency is about 85%.

Embodiment 2

[0022] Take tungsten carbide 28, tellurite (α-TeO2) 24, molybdenum iron (Mo55) 15, cobalt copper (Co15) 14, aluminum 8, high carbon ferrochrome 6, boron iron 5. Stir the above-mentioned powder mixture with a V-shaped powder mixer, add it to a U-shaped 0.5mm thick nickel strip with a certain shape, the filling rate is 36%, and make it into a φ2.0mm strip by rolling and drawing. Tubular wire, using arc spraying equipment, sprayed a 3.0mm thick coating on the Q235 steel plate that has not been sandblasted. After cooling, the coating was peeled off, and the radiation shielding test results showed that it can resist γ with an energy of 0.1MeV to 1MeV. The radiation shielding efficiency is about 90%.

Embodiment 3

[0024] Take tungsten carbide 32, tellurite (α-TeO2) 28, molybdenum iron (Mo55) 16, cobalt copper (Co15) 15, aluminum 12, high carbon ferrochrome 5, boron iron 6. Stir the above-mentioned powder mixture with a V-shaped powder mixer, add it to a U-shaped 0.5mm thick nickel strip with a certain shape, the filling rate is 38%, and make it into a φ2.5mm nickel strip by rolling and drawing. Tubular wire, using arc spraying equipment, sprayed a 3.0mm thick coating on the Q235 steel plate that has not been sandblasted. After cooling, the coating was peeled off, and the radiation shielding test results showed that it can resist γ with an energy of 0.1MeV to 1MeV. The radiation shielding efficiency is about 88%.

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Abstract

The invention relates to an electric arc spraying type tube wire with a gamma-ray radiation shielding type coating. The electric arc spraying type tube wire is characterized in that a nickel strip is filled with tungsten carbide, tellurite, ferromolybdenum, cobalt-copper, powdered aluminum, high-carbon ferro-chrome and ferroboron and is rolled and drawn to form the tube wire phi 2.0-3.0 mm in diameter. Compared with a traditional lead-bearing shielding material, the coating formed by electric arc spraying has the advantages of no toxicity, high temperature resistance, high forming speed, simple technology, excellent shielding performance, high radiation resistance and excellent mechanical performance. The electric arc spraying type tube wire with the gamma-ray radiation shielding type coating can be used for gamma-ray radiation shielding in the fields such as various nuclear reactors, accelerators and isotope radioactive sources.

Description

technical field [0001] The invention relates to an arc-sprayed tubular wire material with a gamma-ray radiation shielding effect, which is used for gamma-ray radiation shielding in the fields of various reactors, accelerators, isotope radiation sources and the like. Background technique [0002] In recent years, the application of nuclear energy and nuclear technology has been rapidly developed, nuclear power, nuclear weapons, nuclear-powered ships, irradiation processing, non-destructive testing, radiotherapy, agricultural breeding and other industries have developed rapidly. High-energy radiation rays have been widely used in industry, medical treatment, etc. , astronomy, military, biology and many other fields, the resulting radiation safety and protection issues have attracted more and more people's attention. Among the radiation produced by the reactor, gamma rays have very short wavelength and high frequency, so they have very large energy. High-energy γ-rays have a c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C4/131C23C4/06
CPCC23C4/06
Inventor 不公告发明人
Owner JIANGXI HENGDA HI TECH CO LTD
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