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Nuclear graphite for nuclear measurement system of fast neutron value-added reactor and preparation method of nuclear graphite
The invention particularly relates to nuclear graphite for a nuclear measurement system of a fast neutron value-added reactor and a preparation method of the nuclear graphite. The nuclear graphite for the nuclear measurement system of the fast neutron value-added reactor consists of 60-90 parts by weight of coke, 30-60 parts by weight of a binder and 0-10 parts by weight of high-purity graphite powder, the preparation method comprises the following steps: primary grinding, mixing and kneading, secondary grinding, isostatic pressing, roasting, 0-1-time impregnation, graphitization nuclear grade purification, rough machining, semi-finished product nuclear grade purification and finish machining. The nuclear graphite for the nuclear measurement system of the fast neutron value-added reactor prepared by the method has the characteristics of short preparation period, compact structure, good uniformity, high volume density, low impurity element, especially boron element, small thermal neutron absorption cross section and the like.
本发明具体涉及一种快中子增值反应堆核测量系统用核石墨及其制备方法，所述快中子增值反应堆核测量系统用核石墨由60‑90重量份数的焦炭、30‑60重量份数的粘结剂和0‑10重量份数的高纯石墨粉组成；经过一次磨粉、混捏、二次磨粉、等静压成型、焙烧、0‑1次浸渍、石墨化核级纯化、粗加工、半成品核级纯化、精加工而成。本发明方法制备的快中子增值反应堆核测量系统用核石墨具有制备周期短、结构致密、均匀性好、体密高、杂质元素特别是硼元素低、热中子吸收截面小等特点。
Nuclear graphite for nuclear measurement system of fast neutron value-added reactor and preparation method of nuclear graphite
The invention particularly relates to nuclear graphite for a nuclear measurement system of a fast neutron value-added reactor and a preparation method of the nuclear graphite. The nuclear graphite for the nuclear measurement system of the fast neutron value-added reactor consists of 60-90 parts by weight of coke, 30-60 parts by weight of a binder and 0-10 parts by weight of high-purity graphite powder, the preparation method comprises the following steps: primary grinding, mixing and kneading, secondary grinding, isostatic pressing, roasting, 0-1-time impregnation, graphitization nuclear grade purification, rough machining, semi-finished product nuclear grade purification and finish machining. The nuclear graphite for the nuclear measurement system of the fast neutron value-added reactor prepared by the method has the characteristics of short preparation period, compact structure, good uniformity, high volume density, low impurity element, especially boron element, small thermal neutron absorption cross section and the like.
本发明具体涉及一种快中子增值反应堆核测量系统用核石墨及其制备方法，所述快中子增值反应堆核测量系统用核石墨由60‑90重量份数的焦炭、30‑60重量份数的粘结剂和0‑10重量份数的高纯石墨粉组成；经过一次磨粉、混捏、二次磨粉、等静压成型、焙烧、0‑1次浸渍、石墨化核级纯化、粗加工、半成品核级纯化、精加工而成。本发明方法制备的快中子增值反应堆核测量系统用核石墨具有制备周期短、结构致密、均匀性好、体密高、杂质元素特别是硼元素低、热中子吸收截面小等特点。
Nuclear graphite for nuclear measurement system of fast neutron value-added reactor and preparation method of nuclear graphite
一种快中子增值反应堆核测量系统用核石墨及其制备方法
LI XIAO (author) / HE YUHONG (author) / ZHU GANG (author) / ZHAO SHIGUI (author)
2022-09-30
Patent
Electronic Resource
Chinese
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