Titanium Sleeve Compression with Stainless Steel Reinforcement
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Solution Overview
Problem
Existing electrical heating devices face challenges in achieving reliable and precise compression, especially when using high-purity titanium sleeves for medical applications, as the strength of the jacket material is insufficient, leading to production problems and potential deformation.
Innovation Solution
A method involving the preparation of a sleeve from a material with a first strength, arrangement of an electrical heating element and filler material, and section-wise compression using tubular sections made from a higher-strength material, such as stainless steel, to achieve precise and reproducible compression, ensuring localized control and annular clamping force.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If the sleeve is compressed to achieve high compression for best heat conduction, then heat conduction is improved, but the sleeve material strength is insufficient leading to deformation and production problems
Solution Approach 1:
The patent applies composite materials by combining a first sleeve material (e.g., high-purity titanium) with a second reinforcement material (e.g., stainless steel) to create a composite structure. The first material provides heat conduction properties while the second material provides mechanical strength, resolving the contradiction between achieving high compression for heat conduction and maintaining sufficient material strength to prevent deformation.
2Manufacturing precision
If section-wise compression is implemented to control compression in different areas, then localized compression control is improved, but production reliability deteriorates due to insufficient jacket material strength
Solution Approach 1:
The composite structure of first and second materials enables section-wise compression to be performed reliably. The second material's superior strength provides a reliable foundation for localized compression operations, ensuring that precision compression control can be implemented without causing deformation or production failures.
Solution Approach 2:
The patent applies local quality by having different material properties in different sections of the sleeve. The second material is specifically placed in sections where compression will be applied, providing localized reinforcement where needed while maintaining the overall structure's integrity and enabling reliable production.
3Object-affected harmful factors
If high-purity titanium sleeve is used for medical applications, then biocompatibility is improved, but the strength is not strong enough for reliable compression
Solution Approach 1:
The patent uses composite materials where the first material (high-purity titanium) maintains biocompatibility for medical applications, while the second material (stainless steel) provides the necessary mechanical strength. This composite approach allows the sleeve to meet both biocompatibility requirements and structural strength requirements for reliable compression.
Data Source
AI summary
A method for producing an electrical heating device with the steps of preparing a sleeve from a first material that has a first strength; arranging an electrical heating element in the sleeve; arranging of a filler material in the sleeve, so that parts of the electrical heating element carrying current are electrically isolated from the sleeve and the position of the electrical heating element in the sleeve is fixed, and at least section-wise compression of the sleeve, of the electrical heating element is arranged in sections of the sleeve that are compressed, and of the filler material arranged in sections of the sleeve that are compressed, wherein, before the completion of the at least section-wise compression of the sleeve, in sections to be compressed, a tubular section is arranged that is made from a second material that has a second strength higher than the first strength.