Multi-chamber heat treatment device with external temperature sensor
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Solution Overview
Problem
Existing multi-chamber heat treatment devices face challenges in real-time temperature measurement during heating and cooling treatments due to limited space, potential object movement from high winding tension, and issues with sealing the vacuum shielding door and heat insulation door, leading to heat leakage and gas atmosphere contamination.
Innovation Solution
A multi-chamber heat treatment device with a temperature sensor attached to the object and a signal transmission unit using a flexible tension member with pinching portions made of heat-resistant materials to seal gaps between doors, allowing real-time temperature measurement and independent control of gas atmospheres in both chambers without object movement, even under high tension.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a data recorder is housed inside a heat-resistant case and taken out after cooling treatment, then temperature measurement is possible, but the arrangement space in heating and cooling chambers becomes narrow and real-time measurement cannot be achieved
Solution Approach 1:
The measuring device is extracted from the interior of the heating and cooling chambers and placed in the exterior environment. Only the necessary sensor portion remains inside the chambers, while the main measuring device with data processing capabilities is located outside, thus solving the space constraint problem while enabling continuous temperature measurement
Solution Approach 2:
A connection line serves as an intermediary element that transmits temperature signals from the sensor inside the chambers to the measuring device outside. This mediator allows the measuring system to function across the chamber boundary without requiring the entire measuring device to be inside the limited space
2Measurement precision
If a connection line is used to connect the sensor part outside the chamber, then real-time temperature measurement is possible, but high winding tension may cause the object to move
Solution Approach 1:
The reel part that winds the connection line is extracted from the heating chamber and placed in the cooling chamber. This separation removes the source of winding tension from the heating chamber environment, preventing tension-induced object movement while maintaining the connection line's signal transmission function
Solution Approach 2:
The connection line is routed through a cooling chamber reel instead of being directly wound in the heating chamber. This creates a functional copy of the tension management system in a separate location, allowing the original heating chamber environment to remain undisturbed
3Reliability
If the vacuum shielding door is sealed, then gas atmosphere control is improved, but heat leakage occurs when the heat insulation door is closed during heating treatment
Solution Approach 1:
The tension member acts as an intermediary sealing element that bridges the gap between the heat insulation door and the heating chamber. By pinching this heat-resistant material, the system achieves both door sealing and gap sealing simultaneously, preventing heat leakage while maintaining gas atmosphere integrity
Solution Approach 2:
The tension member is made of heat-resistant material that combines sealing functionality with thermal resistance. This composite material property allows the same component to serve both as a sealant for the door and as a barrier against heat transmission through the pinched gap
Data Source
Figure 1~2
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AI summary
The multi-chamber heat treatment device includes a temperature sensor (31) attached to an object to be treated (X), a signal transmission unit (30) which transmits a detected signal from the temperature sensor to the outside of a heating chamber and a cooling chamber, and a temperature measuring unit (40) which is arranged outside the heating chamber and the cooling chamber to measure the temperature of the object from the detected signal of the temperature sensor transmitted from the signal transmission unit (30).