通过对采用热介质定向循环养护工艺的电杆养护窑、桁条养护坑、小孔板养护坑的实测,本文对定向循环养护过程中的流场、温度场及制品质量均匀性进行了研究。对其效果进行了探讨,指出了定向循环养护中的问题。叙述了养护制度对砼制品质量的影响,列出了目前国内对所采用的各阶段的限制,并提出了养护制度的确定和控制方法。 Through the measurement of the pole maintenance kiln, purlin conservation pit, and small hole plate conservation pit using the hot medium oriented circulation maintenance process, the flow field, temperature field and product quality uniformity in the directional cycle maintenance process were studied. The effect was discussed and the problems in the maintenance of oriented circulation were pointed out. Describes the impact of conservation systems on the quality of manufactured products, lists the current domestic restrictions on the stages used, and proposes methods for determining and controlling maintenance systems.