作者：LI Tianqing,ZUO Qixiu,GAO Jie,YAN Guanghui

作者单位：Puyang Refractories Group Co., Ltd.

会议录名称：Conference on Refractories International 2018

出版年：2018-10-17

起页：1

止页：4

总页数：4

馆藏号：

分类号：TQ175

语种：英文

会议名称：Conference on Refractories International 2018

会议地点：中国浙江杭州

会议时间：2018-10-17

会议主办者：中钢集团洛阳耐火材料研究院,中国金属学会耐火材料分会,耐火材料杂志社,先进耐火材料国家重点实验室

关键词：alumina-magnesia castable,calcium hexaluminate,high temperature expansion,MgCl2路6H2O

内容简介

Using MgCl2?H2O to control the high temperature expansion of alumina-spinel castables has been studied. The results indicated that it is very efficient to improve the volumetric stability of alumina-spinel castables bonded by calcium aluminate cements at 1500℃ by adding MgCl2?H2O.Microsilica is known by its counterbalancing effect on the in situ calcium hexaluminate(CA6) expansion in alumina- spinel castables. However, the decline of the castables expansion at 1500 ℃ by adding MgCl2?H2O is implemented by restraining the growth velocity of CA6 crystal in the castables at high temperature.