在油田使用的一种记忆合金温控阀

A Themo-Control Valve Fabricated from Shape-Memory Alloy for Use in the Oil Field

测量了具有双程记忆效应的Cu-29.8Zn-4Al(质量分数)合金的L-T曲线,用透射电镜观察了该合金在不同时效温度下的微观组织,计算并分析了该双程记忆合金弹簧的实用参数。以此为依据,设计研制了一种能够在油田使用的定温控制阀门。本阀门结构简单,动作可靠,适合控温精度要求不高且工作环境较恶劣的条件下使用,具有广泛的应用前景。

Heating and cooling curves for the double-memory-type shape memory alloy (SMA) Cu-29.8 Zn-4Al have been measured. The microstructure of the alloy aged at various temperatures have been investigated using TEM. After analyzing properties of the alloy, the application parameters of a double-memory-type spring formed from it were calculated. Based on the experimental data a thermo-control valve for oil-field use was designed. The valve can switch on or off automatically. of simple construction, it functions reliably and is suitable for use in critical situations.