Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Sintering method for preparing fine-grain boron carbide
The invention discloses a sintering method for preparing fine-grain boron carbide. The method comprises the following steps: improving a sintering pipe, which comprises heating bodies, a heating sleeve, an isolation layer, a carbon black layer, and a carbon black layer fixing cylinder; wherein a plurality of insertion holes are uniformly formed in the wall of the heating sleeve, heating bodies areinserted into the insertion holes, the heating sleeve is coated by the isolation layer, and the bottom of the carbon black layer fixing cylinder is fixed on the outer side of the heating sleeve and is arranged between the carbon black layer fixing cylinder and the isolation layer in a welding or clamping manner; filling and compacting carbon black to form a carbon black layer; coating a carbon black layer on the outer layers of the heating bodies, inserting the heating bodies into the insertion holes to obtain an improved sintering pipe; installing the improved sintering pipe in a sintering furnace; and sintering to obtain the fine-grain boron carbide. When the improved sintering pipe is used for sintering, the period of hot-pressing sintering can be shortened, and the growth of boron carbide grains in the heat preservation stage is greatly reduced, and the preparation of a fine-grain boron carbide material is facilitated.
本发明公开了一种制备细晶碳化硼的烧结方法，包括以下步骤：烧结管的改进：烧结管包括有加热体、加热套筒、隔离层，炭黑层和炭黑层固定筒，加热套筒的筒壁上均匀开设有多个插孔，加热体插入至插孔中，加热套筒外部包覆一层隔离层，炭黑固定筒底部通过焊接或卡接的方式固定于加热套筒的外侧，炭黑固定筒与隔离层之间，填充炭黑并压实，形成炭黑层；在加热体外层上涂覆一层炭黑层，插入至插孔中，即得改进的烧结管；将烧结管安装于烧结炉中；烧结后即得细晶碳化硼。采用本发明改进的烧结管进行烧结，可以缩短了热压烧结的周期，大大减少了碳化硼晶粒在保温阶段的长大，从而有利于细晶碳化硼材料的制备。
Sintering method for preparing fine-grain boron carbide
The invention discloses a sintering method for preparing fine-grain boron carbide. The method comprises the following steps: improving a sintering pipe, which comprises heating bodies, a heating sleeve, an isolation layer, a carbon black layer, and a carbon black layer fixing cylinder; wherein a plurality of insertion holes are uniformly formed in the wall of the heating sleeve, heating bodies areinserted into the insertion holes, the heating sleeve is coated by the isolation layer, and the bottom of the carbon black layer fixing cylinder is fixed on the outer side of the heating sleeve and is arranged between the carbon black layer fixing cylinder and the isolation layer in a welding or clamping manner; filling and compacting carbon black to form a carbon black layer; coating a carbon black layer on the outer layers of the heating bodies, inserting the heating bodies into the insertion holes to obtain an improved sintering pipe; installing the improved sintering pipe in a sintering furnace; and sintering to obtain the fine-grain boron carbide. When the improved sintering pipe is used for sintering, the period of hot-pressing sintering can be shortened, and the growth of boron carbide grains in the heat preservation stage is greatly reduced, and the preparation of a fine-grain boron carbide material is facilitated.
本发明公开了一种制备细晶碳化硼的烧结方法，包括以下步骤：烧结管的改进：烧结管包括有加热体、加热套筒、隔离层，炭黑层和炭黑层固定筒，加热套筒的筒壁上均匀开设有多个插孔，加热体插入至插孔中，加热套筒外部包覆一层隔离层，炭黑固定筒底部通过焊接或卡接的方式固定于加热套筒的外侧，炭黑固定筒与隔离层之间，填充炭黑并压实，形成炭黑层；在加热体外层上涂覆一层炭黑层，插入至插孔中，即得改进的烧结管；将烧结管安装于烧结炉中；烧结后即得细晶碳化硼。采用本发明改进的烧结管进行烧结，可以缩短了热压烧结的周期，大大减少了碳化硼晶粒在保温阶段的长大，从而有利于细晶碳化硼材料的制备。
Sintering method for preparing fine-grain boron carbide
一种制备细晶碳化硼的烧结方法
LI RUIDI (Autor:in) / CHEN YU (Autor:in) / YUAN TIECHUI (Autor:in) / ZHOU ZHIHUI (Autor:in) / ZHANG MEI (Autor:in) / FAN YI (Autor:in) / ZHANG JINSHENG (Autor:in)
05.06.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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