连续玄武岩纤维矿石中TiO_(2)、MgO含量的探讨  

Discussion on the Content of TiO_(2) and MgO in Continuous Basalt Fiber Ore

作　　者：韦烈民 张旭平 张玉法[1] 代启林 赵昌松 WEI Liemin;ZHANG Xuping;ZHANG Yufa;DAI Qilin;ZHAO Changsong(Geological Survey Team of Sichuan Coalfield Geology Bureau,Chengdu 610072)

机构地区：[1]四川省煤田地质局地质测量队,成都610072

出　　处：《四川地质学报》2023年第4期579-583,共5页Acta Geologica Sichuan

基　　金：2021年度四川省煤田地质局科研项目“四川省纤维用玄武岩矿地质勘查技术要求研究”成果。

摘　　要：玄武岩纤维是以天然玄武岩为生产原料,高温熔融后经漏板拉丝制备而成的纤维。玄武岩纤维中TiO_(2)、MgO组分含量较低,但对纤维形成的影响不可忽略。根据峨眉山玄武岩中TiO_(2)、MgO含量不同的斜斑玄武岩和致密玄武岩进行拉丝试验,从玄武岩纤维成丝率、纤维断裂强度、熔制性能等分析,结合已有研究成果对玄武岩中TiO_(2)、MgO含量进行讨论。结果表明,连续玄武岩纤维矿石中的TiO_(2)、MgO可增强玄武岩纤维的热性能和化学性能,在一定范围内TiO_(2)含量增加、MgO含量减少,可提高玄武岩纤维的稳定性和成丝率,增强纤维断裂强度。在现有的工艺条件下,根据不同类别的玄武岩,可将连续玄武岩纤维矿石中TiO_(2)含量扩大到4%,增加矿石原料的选取范围。Basalt fiber is made of natural basalt as raw material,which is melted at high temperature and prepared by drawing on bushing.The content of TiO_(2) and MgO components in basalt fiber is low,but the influence on fiber formation cannot be ignored.Based on the drawing test of plagioclase porphyrybasalt and density basalt with different TiO_(2) and MgO contents in Emei Mountain basalt,the content of TiO_(2) and MgO in basalt is discussed from the analysis of basalt fiber filament formation rate,fiber fracture strength and melting performance.The results show that in continuous basalt fiber ore,TiO_(2) and MgO can enhance the thermal and chemical properties of basalt fiber.In a certain range,increasing TiO_(2) content and decreasing MgO content can improve the stability and filament formation rate of basalt fiber,and enhance the fracture strength of fiber.Under the existing process conditions,TiO_(2) content in continuous basalt fiber ore can be expanded to 4%according to different types of basalt,and the selection range of ore raw materials can be increased.

关 键 词：连续玄武岩纤维 TiO_(2)含量 MGO含量 粘度 拉丝实验 

分 类 号：P588.145[天文地球—岩石学]