CN113665205A - 一种中子斩波器转盘及其制作方法 - Google Patents

一种中子斩波器转盘及其制作方法 Download PDF

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CN113665205A
CN113665205A CN202110982800.8A CN202110982800A CN113665205A CN 113665205 A CN113665205 A CN 113665205A CN 202110982800 A CN202110982800 A CN 202110982800A CN 113665205 A CN113665205 A CN 113665205A
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neutron
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boron carbide
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唐惠娟
梅龙伟
张光明
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Hecai Hi Tech Suzhou Co ltd
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Abstract

本发明公开了一种中子斩波器转盘及其制作方法。本发明的技术方案是：一种中子斩波器转盘，包括由碳化硼与ABS粉制成的型材，所述型材的两面分别依次设置有环氧树脂层、碳纤维布平纹织物层以及碳纤维布层。按质量百分比计算，所述型材中碳化硼含量为10%~70%。本发明提供的方案含硼量可在10%~70%内调节，根据需求定制量产。可作为中子吸收或者阻挡材料、转盘强度高，可做大尺寸，最大尺寸可到1m*2m,弥补碳化硼陶瓷尺寸上的不足。填补了碳化硼陶瓷片与已有的大尺寸柔性屏蔽材料之间的空白，确保高含硼量同时有大尺寸高强度。使用时可粘贴到墙壁或者设备上。作为中子斩波器转盘，取代同位素涂层转盘，生产周期更短，阻挡中子效果更好。

Description

一种中子斩波器转盘及其制作方法
技术领域
本发明涉及中子屏蔽技术领域，特别涉及一种中子斩波器转盘及其制作方法。
背景技术
中子吸收材料在核技术领域是一种重要材料。中子斩波器的吸收转盘是斩波器的核心材料和部件。由于斩波器转盘需要高速旋转，因此需要较高结构强度，现有技术中通常使用碳纤维板，同时为了保证中子吸收效果，通常在碳纤维板表面涂硼-10同位素。但是碳纤维板表面涂硼-10有两个方面缺陷，一方面硼-10同位素成本较高，生产一块涂硼-10的碳纤维板往往需要十万至数十万人民币，二来单纯涂硼-10使得中子吸收阻挡性能有限。
发明内容
针对现有技术存在的不足，本发明的主要目的在于提供一种成本低且阻挡中子效果好的一种中子斩波器转盘及其制作方法。
为实现上述目的，本发明提供了如下技术方案：一种中子斩波器转盘，包括由碳化硼与ABS粉制成的型材，所述型材的两面分别依次设置有环氧树脂层、碳纤维布平纹织物层以及碳纤维布层。
优选的，按质量百分比计算，所述型材中碳化硼含量为10%~70%。
一种中子斩波器转盘的制作方法，包括以下步骤，
（1）、将邵氏硬度为89D的ABS胶粒磨成粉体，用粒度为10微米的碳化硼粉与ABS粉混合均匀；
（2）、使用造粒机对混合粉造粒，得到新的含硼ABS颗粒，粒径2mm~8mm；
（3）、利用步骤（2）中的含硼ABS颗粒生产30cm*30cm~80cm*80cm的型材，厚度为1mm~10mm；
（4）、将步骤（2）得到的板材在涂布机上涂DS1202环氧树脂，覆上碳纤维布平纹织物，温度95℃~105℃，ABS板两侧各铺15层碳纤维布；
（5）、在热压罐中抽真空加热到135℃热压1小时，热压成型，形成碳纤维布-碳化硼ABS热固板复合板材；
（6）、使用水切割设备将步骤（5）得到的板材切割成需要的形状。
优选的，所述步骤（3）中可以使用注塑机注塑成型或者挤压方法制成板材。
本发明相对于现有技术具有如下优点，含硼量可在10%~70%内调节，根据需求定制量产。可作为中子吸收或者阻挡材料、转盘强度高，可做大尺寸，最大尺寸可到1m*2m,弥补碳化硼陶瓷尺寸上的不足。填补了碳化硼陶瓷片与已有的大尺寸柔性屏蔽材料之间的空白，确保高含硼量同时有大尺寸高强度。使用时可粘贴到墙壁或者设备上。作为中子斩波器转盘，取代同位素涂层转盘，生产周期更短，阻挡中子效果更好。
附图说明
图1为2mm板材中子透射率测量图。
具体实施方式
下面结合附图对本发明作进一步说明。
一种中子斩波器转盘，包括由碳化硼与ABS粉制成的型材，所述型材的两面分别依次设置有环氧树脂层、碳纤维布平纹织物层以及碳纤维布层。
优选的，按质量百分比计算，所述型材中碳化硼含量为10%~70%。
一种中子斩波器转盘的制作方法，包括以下步骤，
（1）、将邵氏硬度为89D的ABS胶粒磨成粉体，用粒度为10微米的碳化硼粉与ABS粉混合均匀；
（2）、使用造粒机对混合粉造粒，得到新的含硼ABS颗粒，粒径2mm~8mm；
（3）、利用步骤（2）中的含硼ABS颗粒生产30cm*30cm~80cm*80cm的型材，厚度为1mm~10mm；
（4）、将步骤（2）得到的板材在涂布机上涂DS1202环氧树脂，覆上碳纤维布平纹织物，温度95℃~105℃，ABS板两侧各铺15层碳纤维布；
（5）、在热压罐中抽真空加热到135℃热压1小时，热压成型，形成碳纤维布-碳化硼ABS热固板复合板材；
（6）、使用水切割设备将步骤（5）得到的板材切割成需要的形状。
优选的，所述步骤（3）中可以使用注塑机注塑成型或者挤压方法制成板材。
中子斩波器转盘，碳化硼陶瓷当量可达2mm，比单纯涂硼-10的转盘要厚2~4倍，因此中子透过率可降低4个量级，由图1可以看出，本发明的板材具有优异的中子阻挡性能。做中子散射实验室墙砖贴四周墙壁，吸收杂散中子降本底，同时价格只相当于进口屏蔽材料的五分之一。挤压型材中子散射实验室支撑台架，可代替铝型材，更好吸收杂散中子，降低本底。
以上所述仅是本发明的优选实施方式，本发明的保护范围并不仅局限于上述实施例，凡属于本发明思路下的技术方案均属于本发明的保护范围。应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明原理前提下的若干改进和润饰，这些改进和润饰也应视为本发明的保护范围。

Claims (4)

1.一种中子斩波器转盘，其特征在于：包括由碳化硼与ABS粉制成的型材，所述型材的两面分别依次设置有环氧树脂层、碳纤维布平纹织物层以及碳纤维布层。
2.根据权利要求1所述的一种中子斩波器转盘，其特征在于：按质量百分比计算，所述型材中碳化硼含量为10%~70%。
3.一种中子斩波器转盘的制作方法，其特征在于：包括以下步骤，
将邵氏硬度为89D的ABS胶粒磨成粉体，用粒度为10微米的碳化硼粉与ABS粉混合均匀；
使用造粒机对混合粉造粒，得到新的含硼ABS颗粒，粒径2mm~8mm；
利用步骤（2）中的含硼ABS颗粒生产30cm*30cm~80cm*80cm的型材，厚度为1mm~10mm；
将步骤（2）得到的板材在涂布机上涂DS1202环氧树脂，覆上碳纤维布平纹织物，温度95℃~105℃，ABS板两侧各铺15层碳纤维布；
在热压罐中抽真空加热到135℃热压1小时，热压成型，形成碳纤维布-碳化硼ABS热固板复合板材；
使用水切割设备将步骤（5）得到的板材切割成需要的形状。
4.根据权利要求3所述的一种中子斩波器转盘的制作方法，其特征在于：所述步骤（3）中可以使用注塑机注塑成型或者挤压方法制成板材。
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CN116511005A (zh) * 2023-02-06 2023-08-01 散裂中子源科学中心 一种中子吸收涂层的大面积制备方法

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JP2003302486A (ja) * 2002-04-10 2003-10-24 Toyo Tanso Kk 中性子吸収材
CN103724760A (zh) * 2013-12-06 2014-04-16 中国工程物理研究院化工材料研究所 一种耐中子辐射屏蔽板材及其制备方法
CN205058745U (zh) * 2015-09-09 2016-03-02 上海斯瑞科技有限公司 一种组合式复合板
CN105729937A (zh) * 2016-01-29 2016-07-06 南京航空航天大学 一种乏燃料储存用新型中子屏蔽超混杂层板复合材料及其制备方法
CN107189419A (zh) * 2017-05-26 2017-09-22 东莞市奥能工程塑料有限公司 一种超低氢防中子辐射材料及其制备方法
CN107955332A (zh) * 2017-12-04 2018-04-24 北京航空航天大学 一种中子屏蔽超混杂复合材料层板及其制备方法
CN112908505A (zh) * 2021-02-22 2021-06-04 中国核动力研究设计院 一种耐高温有机屏蔽材料

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* Cited by examiner, † Cited by third party
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CN116511005A (zh) * 2023-02-06 2023-08-01 散裂中子源科学中心 一种中子吸收涂层的大面积制备方法
CN116511005B (zh) * 2023-02-06 2023-10-27 散裂中子源科学中心 一种中子吸收涂层的大面积制备方法

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