作者：林强¹, 裴东兴¹, 张瑜¹, 于文松²

作者单位：1. 中北大学 仪器科学与动态测试教育部重点实验室, 山西 太原 030051;
2. 国营第二四七厂, 山西 太原 030051

关键词：接触式;温度测试;熔融态;螺压机

摘要：

鉴于螺压工艺过程中对温度要求很高，为保证生产的安全，迫切需要对机器内温度进行测试。在对机体内温度的变化规律进行理论分析后，采用接触式测温技术，利用集成温度传感器补偿法，设计一套对螺压机机体内熔融态药料温度测试的系统。该系统采用微体积抗干扰设计，并在专门设计的螺压机机体上完成测试。实验表明：系统存储容量大、功耗低，能够长时间记录测试数据，对温度的补偿精准。机体温度持续上升后维持在72℃左右，论证该系统对熔融态药料测试的可行性，分析该过程影响温度变化的因素与时间的关系，可为控制螺杆转速和改进螺压机机体结构提供可靠的数据依据。

Temperature test system for drugs in screw pressing process

LIN Qiang¹, PEI Dongxing¹, ZHANG Yu¹, YU Wensong²

1. Key Laboratory of Instrument Science and Dynamic Testing, Ministry of Education, North University of China, Taiyuan 030051, China;
2. State No. 247 Factory, Taiyuan 030051, China

Abstract: In view of high requirement for temperature during the screw pressing process, it is urgent that the machine temperature should to be measured to ensure the production safety. Upon the analysis on the temperature variation in the machine, a temperature measuring system for the molten drug in the screw extruder is designed with contact-type temperature measurement technology in combination with the integrated temperature sensor compensation method. The system is made in micro-volume with anti-interference design, and tested on a specially-designed screw extruder. According to experimental results, the system has large memory capacity, low power consumption and accurate compensation for temperature and it is able to record test data for a long duration. When the temperature of the machine increases to and then is maintained at about 72℃, the feasibility of the system for testing molten propellant can be demonstrated, and the relation between factors affecting the temperature and the time in the process can be analyzed to provide the basis for the screw rotation speed control and the improvement of screw extruder structure.

Keywords: contact-type;temperature test;molten state;screw extruder

2018, 44(8): 87-90  收稿日期: 2017-12-26;收到修改稿日期: 2018-02-06

基金项目: 

作者简介: 林强(1992-),男,山西大同市人,硕士研究生,专业方向为动态测试与智能仪器

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