The electron beam local heat treatment (EBLHT) is a newly heat treatment that provides the advantages of high precision, flexility and efficiency, energy source saving and productivity improving.
General beam pumping system should be the overall efficiency of about 50% if less than this should improve its performance.
一般游梁式抽油系统的总效率应为50%左右，若低于此应提高其性能。
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Electromechanical integrated; Toroidal drive; Manufacture of the stator; Manufacture of the toroidal worm; Curved beam; Minimum energy method; Efficiency.