Radiation Shielding Element Wrinkle Prevention via Gas Extraction

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Solution Overview

Problem

Radiation protection elements with plastic-containing covers often experience undesirable wrinkling, which complicates assembly and can promote oxidation processes, making it difficult to ensure correct positioning of the radiation protection material.

Innovation Solution

A method involving the arrangement of radiation protection material between two layers of plastic-containing elements, with gas removal through pressing or creating a partial vacuum, and connecting them in a protective gas atmosphere to reduce internal gas pressure and prevent wrinkling.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the radiation protection material is placed inside a plastic casing, then the material is protected and hygiene is improved, but wrinkles form on the outer surface of the casing

Engineering Contradiction:
Improveprotection of radiation protection materialVSAvoidsurface smoothness of casing
Core Design Contradiction:
ReliabilityVSShape

Solution Approach 1:

The invention extracts the harmful element (air/gas) from the casing interior by creating a partial vacuum, removing the medium that causes wrinkles to form on the casing surface

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The invention changes the physical parameter of gas pressure inside the casing from atmospheric pressure to reduced pressure (partial vacuum), which prevents wrinkle formation while maintaining the protective function of the casing

Inventive Principle:
Principle #35Parameter changes

2Ease of manufacture

If air pockets are present in the casing, then the casing can be easily manufactured, but oxidation processes are promoted in the radiation protection material

Engineering Contradiction:
Improveease of casing assemblyVSAvoidoxidation of radiation protection material
Core Design Contradiction:
Ease of manufactureVSObject-affected harmful factors

Solution Approach 1:

The invention creates an inert environment inside the casing by removing air and replacing it with a protective gas atmosphere or maintaining partial vacuum, preventing oxidation of the radiation protection material while still allowing for practical manufacturing

Inventive Principle:
Principle #39Inert atmosphere (Inert environment)

3Ease of operation

If the casing is not tightly fitted to the radiation protection material, then assembly is simpler, but it is difficult to determine correct positioning of the material

Engineering Contradiction:
Improveease of assemblyVSAvoidpositioning accuracy of radiation protection material
Core Design Contradiction:
Ease of operationVSMeasurement precision

Solution Approach 1:

The invention applies preliminary action by creating the partial vacuum and bonding the casing layers together during the assembly process itself, ensuring tight fit and correct positioning are achieved as part of the manufacturing process rather than requiring separate adjustment steps

Inventive Principle:
Principle #10Preliminary action

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The solution reduces the risk of wrinkling and oxidation, facilitating easier assembly and ensuring correct positioning of the radiation protection material, while maintaining a snug fit against the material for enhanced protection.

Implementation Method 1

At least a portion of the gas present between the at least two layers can be removed. This can be done, for example, by pressing one or both of the layers together or by creating a partial vacuum.

Methodology Applied
Scientific EffectPressure reduction: Depressurisation

Implementation Method 2

The at least two layers, with the at least one radiation protection material arranged therebetween, can be introduced into a protective gas atmosphere. The at least two layers are then bonded together. The protective gas atmosphere can have a lower oxygen content than air.

Methodology Applied
Scientific EffectOxidation prevention: Oxidation

Data Source

PatentEP3748652B1Method of manufacturing a radiation protection element, radiation protection element and radiation protection device
Publication Date: 2024.07.10 MAVIG GMBH
  • EP3748652B1 patent drawingFigure 1~3
  • EP3748652B1 patent drawingFigure 4~6
  • EP3748652B1 patent drawingFigure 7~9

AI summary

To manufacture a radiation shielding element, a radiation shielding material (10) is arranged between at least two layers (21, 22) of at least one plastic-containing element. At least a portion of the gas present between the at least two layers (21, 22) is removed. The at least two layers (21, 22) are then joined together.