在工业研磨操作中准确测量温度,采用的坡度
Iñigo Pombo1, José Antonio Sánchez1, Einar Martin1
1Department of Mechanical Engineering, Bilbao School of Engineering, University of the Basque Country (UPV/EHU), 48013 Bilbao, Spain.
Sensors (Basel, Switzerland)
|March 28, 2024
概括
可研磨热电偶的准确校准对于在高速研磨过程中测量工件温度至关重要. 这种方法可以纠正热惯性,大大减少要求高的工业应用温度测量的误差.
科学领域:
- 制造业 工程 制造工程
- 材料科学 材料科学 材料科学
- 热力工程是热力工程中的一个.
背景情况:
- 航空航天和电子移动等高附加值行业需要先进的边界磨砂技术来实现极端性能.
- 研磨过程产生强烈的热量,导致热场和潜在的研磨烧伤工件.
- 精确的工件温度测量对于加工过程的过程控制和质量保证至关重要.
研究的目的:
- 调查校准可研磨热电偶的必要性,以便在传统研磨中准确测量温度.
- 开发一种方法来纠正可研磨热电偶信号中的热惯性.
- 评估校准对高速研磨操作的有效性.
主要方法:
- 研究了可磨砂热电偶在不同磨砂条件下的反应,重点关注热惯性.
- 开发并应用了一种涉及信号集成的校准程序,使用获得的校准常量.
- 将原始热电偶信号与校准信号与高输送速度 (高达40米/分钟) 的理论模型进行比较.
主要成果:
- 与理论模型相比,直接使用原始热电偶信号导致温度偏差超过200K.
- 校准后的信号集成将最大温度误差降低到93K,在40米/分钟的输入速度下.
- 在校准后,在较低的料速度下,错误进一步减少到20K以下.
结论:
- 可研磨热电偶的准确校准对于高速研磨中可靠的温度测量至关重要.
- 拟议的校准和整合程序有效地纠正了热惯性.
- 这种方法使得即使在苛刻的工业条件下,也能准确测量最大研磨温度.
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