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Preparation method of perovskite manganese oxide spherical refrigerant
The invention discloses a preparation method of a perovskite manganese oxide spherical refrigerant. The preparation method comprises the following steps: sequentially adding perovskite manganese oxide precursor powder into a coupling agent and an acetone solution containing a caking agent and a curing agent to obtain a mixed sample; the mold comprises an upper mold and a lower mold, the upper mold and the lower mold are connected through a hinge, the upper mold and the lower mold are each internally provided with a hemispherical cavity, the mixed sample is injected into the hemispherical cavity of the lower mold, then the upper mold pressurizes the mixed sample, the upper mold is straightly closed with the lower mold, and the mold with the spherical cavities is obtained. And drying in the pressing process to obtain the perovskite manganese oxide spherical refrigerant. The spherical refrigerant with good surface quality can be prepared by using the preparation method.
本发明公开了一种钙钛矿锰氧化物球状制冷工质的制备方法，包括：将钙钛矿锰氧化物前驱粉依次加入偶联剂和含有结剂和固化剂的丙酮溶液中得到混合样品；获得具有球形腔体的模具，所述模具包括上模具和下模具，所述上模具和下模具通过铰链连接，所述上模具和下模具内均设有半球形腔体，将混合样品注入下模具的半球形腔体内，然后通过上模具加压混合样品，直上模具至与下模具闭合，在压制过程中进行烘干得到钙钛矿锰氧化物球状制冷工质。利用该制备方法能够制备出表面质量较好的球状制冷工质。
Preparation method of perovskite manganese oxide spherical refrigerant
The invention discloses a preparation method of a perovskite manganese oxide spherical refrigerant. The preparation method comprises the following steps: sequentially adding perovskite manganese oxide precursor powder into a coupling agent and an acetone solution containing a caking agent and a curing agent to obtain a mixed sample; the mold comprises an upper mold and a lower mold, the upper mold and the lower mold are connected through a hinge, the upper mold and the lower mold are each internally provided with a hemispherical cavity, the mixed sample is injected into the hemispherical cavity of the lower mold, then the upper mold pressurizes the mixed sample, the upper mold is straightly closed with the lower mold, and the mold with the spherical cavities is obtained. And drying in the pressing process to obtain the perovskite manganese oxide spherical refrigerant. The spherical refrigerant with good surface quality can be prepared by using the preparation method.
本发明公开了一种钙钛矿锰氧化物球状制冷工质的制备方法，包括：将钙钛矿锰氧化物前驱粉依次加入偶联剂和含有结剂和固化剂的丙酮溶液中得到混合样品；获得具有球形腔体的模具，所述模具包括上模具和下模具，所述上模具和下模具通过铰链连接，所述上模具和下模具内均设有半球形腔体，将混合样品注入下模具的半球形腔体内，然后通过上模具加压混合样品，直上模具至与下模具闭合，在压制过程中进行烘干得到钙钛矿锰氧化物球状制冷工质。利用该制备方法能够制备出表面质量较好的球状制冷工质。
Preparation method of perovskite manganese oxide spherical refrigerant
一种钙钛矿锰氧化物球状制冷工质的制备方法
SU GUANGCHUN (author) / ZHOU TINGTING (author) / WANG LICHEN (author) / MAN QIKUI (author) / SHEN BAOGEN (author)
2024-04-30
Patent
Electronic Resource
Chinese
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