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发明公开
CN102337384A 非晶合金变压器铁芯去应力方法与装置 无效 - 驳回

非晶合金变压器铁芯去应力方法与装置
摘要：
本发明揭示了一种非晶合金变压器铁芯去应力方法与装置，其中该方法包括：装载铁芯到一加热炉腔内；通过向加热炉腔内注入惰性气体而排出炉腔内空气；对加热炉腔进行升温；待铁芯温度达到保温温度时，对加热炉腔进行保温，其中，铁芯保温温度为342～348℃，保温时间为40～50min；对铁芯进行降温，其包括对加热炉腔进行冷却以及铁芯随炉冷却的步骤；其中在以上升温、保温、对加热炉腔进行冷却的过程中，保持往炉内通入惰性气体。利用以上方法与装置可以有效去除非晶合金在快淬、卷绕、切割、成型等过程中产生的应力，显著降低了非晶合金铁芯的空载损耗。
摘要（英）：

The invention discloses a destressing method and device for an amorphous alloy transformer iron core, wherein the method comprises the steps of: loading an iron core to a heating furnace chamber; exhausting the air inside the furnace chamber by injecting an inert gas into the heating furnace chamber; heating up the heating furnace chamber; keeping the temperature of the heating furnace chamber when the iron core temperature reaches a keeping temperature, wherein the iron core keeping temperature is 342-348 DEG C, and the temperature keeping time is 40-50 min; cooling the iron core, wherein the cooling step comprises a step of cooling the heating furnace chamber and a step of cooling the iron core along with the furnace; and keeping to feed the inert gas into the furnace in the processes of heating up, keeping temperature and cooling the heating furnace chamber. By adopting the method and the device disclosed by the invention, the stresses of the amorphous alloy generated in the processes of fast quenching, winding, cutting, forming and the like are effectively eliminated, and no-load loss of the amorphous alloy iron core is obviously reduced.

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