Rapid Thermal Annealing Lamp Holder With Stainless Steel Coolant Barrier
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Solution Overview
Problem
Existing high-intensity lamp holders for rapid thermal annealing furnaces suffer from corrosion due to water circulation, leading to maintenance issues and increased manufacturing and maintenance costs, and require complex manufacturing processes.
Innovation Solution
A lamp holder design comprising a first part made of a good heat conductor material like aluminum, a second part made of a poorer heat conductor like stainless steel, and a thin stainless steel sheet interposed between them to form coolant cavities, preventing direct contact with water and reducing corrosion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If aluminum parts are used for the lamp holder and cooled with water circulation, then heat conduction efficiency is improved, but corrosion occurs leading to maintenance requirements
Solution Approach 1:
The lamp holder is divided into multiple parts: an aluminum part for heat conduction, a stainless steel part for corrosion resistance, and a stainless steel sheet separating coolant circulation zones. This segmentation allows each material to perform its optimal function without suffering from its weaknesses.
Solution Approach 2:
The lamp holder uses a composite structure combining aluminum (for thermal conductivity) with stainless steel (for corrosion resistance). The stainless steel sheet acts as a barrier layer, creating a multi-material system that achieves both heat management and corrosion protection simultaneously.
2Ease of manufacture
If aluminum parts are assembled by screwing with water circulation, then manufacturing is simplified, but corrosion requires maintenance operations to replace parts
Solution Approach 1:
The stainless steel sheet acts as a sacrificial or protective layer that prevents corrosion of the main structural components. By using a thin, replaceable sheet, the design avoids the need to replace entire lamp holder assemblies, reducing maintenance costs and complexity.
3Reliability
If a multi-material structure is used with a sheet interposed between parts, then corrosion is prevented, but manufacturing complexity increases
Solution Approach 1:
A thin stainless steel sheet is used as the protective barrier between materials. The thinness of this sheet minimizes its impact on manufacturing complexity while effectively preventing corrosion. The sheet can be easily positioned and secured between the aluminum and stainless steel parts without requiring complex joining processes.
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 design prevents corrosion, simplifies manufacturing, reduces costs, and maintains effective heat reflection and conduction, ensuring efficient operation without the need for anticorrosion treatments.
Implementation Method 1
a first part made of a first material, intended to support the high-intensity lamps and comprising a surface intended to face the high-intensity lamps
Implementation Method 2
the second and third materials are poorer heat conductors than the first material
Implementation Method 3
a surface intended to face the high-intensity lamps; a wall, facing the lamps, adapted to reflecting the radiation emitted by the lamps
Data Source
AI summary
The present description concerns a holder (60) for high-intensity lamps (24) comprising a first part (62) made of a first material, intended to support the high-intensity lamps and comprising a surface (70) intended to face the high-intensity lamps, a second part (64) made of a second material different from the first material, covering the first part and attached to the first part, and a sheet (90), made of a third material different from the first material, interposed between the first part and the second part and delimiting with the second part at least one cavity (72) intended to contain a coolant.