玄武岩纤维长度和加入量对硅溶胶型壳强度的影响  

Effects of Basalt Fiber Length and Content on Silica Sol Shell Strength

作　　者：金文博 吕凯[1,2,3] 丰志成 车磊 JIN Wenbo;LÜKai;FENG Zhicheng;CHE Lei(School of Materials Science and Engineering,Inner Mongolia University of Technology,Hohhot 010051;Engineering Research Center for Advanced Light Metal Materials Development and Processing Protection,Ministry of Education,Hohhot 010051;Inner Mongolia Engineering Technology Research Center for New Materials,Hohhot 010051)

机构地区：[1]内蒙古工业大学材料科学与工程学院,呼和浩特010051 [2]先进轻金属材料开发与加工防护教育部工程研究中心,呼和浩特010051 [3]内蒙古自治区新材料工程技术研究中心,呼和浩特010051

出　　处：《特种铸造及有色合金》2025年第1期149-154,共6页Special Casting & Nonferrous Alloys

基　　金：国家自然科学基金资助项目(5186504);内蒙古自然科学基金资助项目(2021LHMS050032019LH05026);内蒙古自治区高校青年科技英才科学基金资助项目(NJYT22078);内蒙古自治区直属高校基本科研经费资助项目(JY20220059);内蒙古自治区“草原英才”工程青年创新人才培养计划一层次和内蒙古自治区直属高校基本科研经费资助项目(ZTY2023040)。

摘　　要：选择玄武岩纤维作为硅溶胶型壳的增强纤维,以解决强度不足和保温散热等问题。结果表明,玄武岩纤维加入量为0.1%、长度为3 mm时起到的增强效果和导热效果最佳,型壳常温抗弯强度和高温强度分别达到3.06 MPa和17.41 MPa,较未添加纤维时分别提升了54%和42%,高温自重变形量和热导率分别达到1.04%和0.81 W/(m·K),较未添加纤维时分别降低了54%和16%。Basalt fiber was selected as reinforcing fiber of silica sol shell to solve problems such as insufficient strength and heat insulation.The results indicate that the strengthening effect and thermal conductivity of the shell are desirable with the basalt fiber content of 0.1%and length of 3 mm.The bending strength and high-temperature strength of the shell at room temperature reach 3.06 MPa and 17.41 MPa,which are 54%and 42%higher than those of ones without fiber,respectively.Weight deformation amount at high temperature and thermal conductivity reach 1.04%and 0.81 W/(m·K),respectively,which are 54%and 16%lower than those of ones without fiber.

关 键 词：玄武岩纤维 硅溶胶型壳 抗弯强度 精密铸造 

分 类 号：TG249.5[机械工程—精密仪器及机械]