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Preparation method of nuclear boron carbide pellet
The invention relates to the technical field of vacuum hot pressing sintering furnaces, in particular to a preparation method of a nuclear boron carbide pellet, which comprises the following steps: S1, filling a cold pressing mold matched with a boron carbide pellet product with boron carbide powder for the nuclear industry, and pressing a boron carbide pellet green body by adopting a hydraulic press; s2, the boron carbide pellet green body is placed in a sintering mold and then placed in a vacuum furnace, vacuumizing, heating and pressurizing are conducted, inert gas is introduced for protection, and heating continues till boron carbide is sintered into an expected net-size pellet; and S3, naturally cooling to room temperature, releasing pressure, demolding and taking materials to obtain a boron carbide pellet product. The winding structure is arranged on the heat insulation door plate, the winding motor can be driven to drive the winding wheel to rotate, so that the winding metal rope pulls the heat insulation door plate to move upwards, the heating bin and the cooling bin are separated through the heat insulation door plate, the heat insulation door plate can ascend and descend under the action of the winding motor, and use is more convenient.
本发明涉及真空热压烧结炉技术领域，具体为一种核用碳化硼芯块的制备方法，包括以下步骤：S1、可将核工业用碳化硼粉末填装入与碳化硼芯块产品相适配的冷压模具中，并采用液压机压制出碳化硼芯块生坯；S2、将碳化硼芯块生坯置于烧结模具中，再放入真空炉内，抽取真空，并升温加压，以及通入惰性气体保护，再继续加热，直至将碳化硼烧结为预期的净尺寸芯块；S3、自然冷却至室温后泄压脱模取料，得到碳化硼芯块产品。本发明在隔热门板上设置收卷结构，能够通过驱动收卷电机带动收卷轮转动，从而使收卷金属绳拉动隔热门板向上移动，利用隔热门板对加热仓和冷却仓进行分隔，而隔热门板可在收卷电机的作用下进行升降，使用更加方便。
Preparation method of nuclear boron carbide pellet
The invention relates to the technical field of vacuum hot pressing sintering furnaces, in particular to a preparation method of a nuclear boron carbide pellet, which comprises the following steps: S1, filling a cold pressing mold matched with a boron carbide pellet product with boron carbide powder for the nuclear industry, and pressing a boron carbide pellet green body by adopting a hydraulic press; s2, the boron carbide pellet green body is placed in a sintering mold and then placed in a vacuum furnace, vacuumizing, heating and pressurizing are conducted, inert gas is introduced for protection, and heating continues till boron carbide is sintered into an expected net-size pellet; and S3, naturally cooling to room temperature, releasing pressure, demolding and taking materials to obtain a boron carbide pellet product. The winding structure is arranged on the heat insulation door plate, the winding motor can be driven to drive the winding wheel to rotate, so that the winding metal rope pulls the heat insulation door plate to move upwards, the heating bin and the cooling bin are separated through the heat insulation door plate, the heat insulation door plate can ascend and descend under the action of the winding motor, and use is more convenient.
本发明涉及真空热压烧结炉技术领域，具体为一种核用碳化硼芯块的制备方法，包括以下步骤：S1、可将核工业用碳化硼粉末填装入与碳化硼芯块产品相适配的冷压模具中，并采用液压机压制出碳化硼芯块生坯；S2、将碳化硼芯块生坯置于烧结模具中，再放入真空炉内，抽取真空，并升温加压，以及通入惰性气体保护，再继续加热，直至将碳化硼烧结为预期的净尺寸芯块；S3、自然冷却至室温后泄压脱模取料，得到碳化硼芯块产品。本发明在隔热门板上设置收卷结构，能够通过驱动收卷电机带动收卷轮转动，从而使收卷金属绳拉动隔热门板向上移动，利用隔热门板对加热仓和冷却仓进行分隔，而隔热门板可在收卷电机的作用下进行升降，使用更加方便。
Preparation method of nuclear boron carbide pellet
一种核用碳化硼芯块的制备方法
ZHAO GUOZHANG (author) / WANG HONGTAO (author) / XIE MING (author) / LIU PIXIAN (author) / YANG JINRU (author)
2023-08-22
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
/
F27B
Industrieöfen, Schachtöfen, Brennöfen, Retorten allgemein
,
FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL
/
F27D
Einzelheiten oder Zubehör für Industrieöfen, Schachtöfen, Brennöfen oder Retorten, soweit sie nicht auf eine Ofenart eingeschränkt sind
,
DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
/
G21C
NUCLEAR REACTORS
,
Kernreaktoren
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