Radiation Protection Part with Non-Metallic Coating
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Solution Overview
Problem
Existing radiation protection bodies, particularly in the medical field, face challenges with corrosion, surface abrasion leading to toxic organotin compound formation, and stringent hygiene and visual appearance requirements, which are not adequately met by current technologies.
Innovation Solution
A radiation protection body with a plate-shaped or film-shaped base body coated with a non-metallic material on all surfaces, including an adhesive layer, providing corrosion resistance, wear resistance, and improved hygiene and visual appearance, while allowing for easy identification and attachment to surfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a lead plate is used as a radiation protection body, then effective radiation shielding is achieved, but the plate is susceptible to corrosion and difficult to decontaminate
Solution Approach 1:
The patent applies a multi-layer composite structure consisting of a lead base body (for radiation shielding) covered by a plastic coating layer (for corrosion resistance and decontamination ease). This composite material approach combines the radioprotective properties of lead with the chemical resistance and hygiene properties of plastic materials, resolving the contradiction between radiation shielding effectiveness and corrosion susceptibility.
2Ease of operation
If a tin or tin-containing alloy covering layer is applied on the lead plate, then easier decontamination is achieved, but surface abrasion can occur leading to dissolution of tin ions and formation of toxic organotin compounds
Solution Approach 1:
The patent changes the material parameter from metallic coating (tin or tin alloy) to plastic coating material. This parameter change eliminates the problem of tin ion dissolution and organotin compound formation while maintaining the decontamination ease benefit. The plastic material provides a non-toxic alternative that can be cleaned without risking harmful chemical releases.
Solution Approach 2:
The plastic coating layer can be designed as a replaceable protective layer that, if damaged or contaminated beyond cleaning, can be removed and replaced rather than risking toxic contamination from abrasive cleaning of metallic coatings. This disposable approach eliminates the harmful effects of tin ion release.
3Reliability
If cleaning of the surface is performed to meet hygiene requirements, then hygiene standards are met, but surface abrasion occurs which could lead to dissolution of coating material
Solution Approach 1:
The plastic coating layer serves as a sacrificial protective barrier that can be cleaned aggressively to meet hygiene requirements without compromising the underlying lead structure. The plastic material's chemical inertness and ease of cleaning allow for thorough decontamination while its cohesive strength prevents premature failure, resolving the contradiction between hygiene compliance and surface integrity.
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 offers enhanced protection against corrosion, maintains surface integrity, meets stringent hygiene and visual standards, and ensures effective radiation shielding with improved handling properties, making it suitable for medical applications.
Implementation Method 1
The coating of the first surface side with the first non-metallic material offers a number of advantages compared to the prior art. On the one hand, corrosion of the lead surface of the base body is prevented
Implementation Method 2
The coating of the first surface side with the first non-metallic material offers a number of advantages compared to the prior art. On the one hand, corrosion of the lead surface of the base body is prevented and better wear resistance is achieved compared to uncoated lead.
Data Source
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Figure 6~7
AI summary
The invention relates to a molded radiation protection part (1). According to the invention, the main body (2) is a board, sheet metal, or film main body having a blank comprising a square, rectangular, or other geometric shape, and the main body (2) comprises a first surface side (8) having a coating (3) made of a first non-metal material.