Nuclear radiation shielding alloy lead fiber woven fabric

Abstract

A nuclear radiation shielding alloy lead fiber woven fabric relates to the field of nuclear radiation protection biological shielding technology and is particularly applicable to the technical field of core materiasl for the production of nuclear radiation biological protection flexible shielding products. According to the nuclear radiation shielding alloy lead fiber woven fabric, nuclear radiation shielding alloy lead fiber yarns with the diameter of 0.01 mm-1 mm are arranged in the weft direction, and nuclear radiation shielding alloy lead fiber yarns with the diameter of 0.001 mm-1 mm and glass fiber yarns with the diameter of 0.05-0.5 mm are arranged in the warp direction. The nuclear radiation shielding alloy lead fiber woven fabric not only has a certain function of shielding nuclear radiation, but also ensures the weaving process to proceed smoothly by adopting the glass fiber yarns, meanwhile, the tensile strength of products is improved, and the follow-up production of light, thin and material-saving nuclear radiation shielding products is facilitated.

Description

technical field [0001] The invention relates to nuclear radiation protection biological shielding technology, in particular to the technical field of inner core materials used in the production of nuclear radiation biological protection flexible shielding products. Background technique [0002] Studies have shown that the external radiation of nuclear power plants is mainly γ-rays, which mainly come from the fission products of nuclear reactions and the pipelines and valves activated by neutrons. Due to the appearance of activated corrosion products in the pipelines, radioactive particles in the pipelines are deposited, making the control area The environmental dose in many maintenance work places is relatively high, which increases the external exposure dose of the staff, which is generally relieved by shielding. Therefore, in the selection of shielding materials, strive to be efficient, safe, cheap and space-saving, usually steel, lead, ordinary concrete and heavy concrete...

AI Technical Summary

Problems solved by technology

Practice has proved that although lead plate and lead skin products have better anti-nuclear radiation effects, they are used in large quantities when building a shielding system, which is difficult to build, low in work efficiency, produces a lot of waste, and has high potential risks; and lead plate products have poor conformability. Can not be bent, not suitable for the shielding of special equipment such as pipelines and valves, and it is easy to drop and hurt people or damage equipment if it is accidentally operated

The products, coatings and adhesives made of lead powder mixed with rubber and polyethylene foam materials have certain flexibility, but because the lead powder particles are easy to accumulate, it is difficult to mix evenly in the base material, so the shielding performance is not uniform. And the lead equivalent is low, rubber and polyethylene are easy to age, which affects the shielding effect and brings the danger of radiation to the staff

Hollow microspheres made of heavy metals such as lead are lightweight and high-strength materials. Although they have excellent anti-nuclear radiation performance, they are expensive and costly. They are generally used in nuclear rocket engines to prevent nuclear radiation leakage