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Production method for continuous basalt fiber

A technology of basalt fiber and production method, which is applied to glass manufacturing equipment, glass furnace equipment, manufacturing tools, etc., can solve the problems of not being comprehensive enough and not considering the decisive effect of mineral components on the production process, so as to achieve easy homogenization and improve accuracy Sexuality and rapid effectiveness, the effect of improving homogeneity

Active Publication Date: 2017-02-15
SOUTHEAST UNIV
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Problems solved by technology

The deficiency of above-mentioned prior art is: the chemical composition of basalt ore is used as the sole criterion of selecting the basalt ore suitable for manufacturing continuous basalt fiber, not comprehensive enough;

Method used

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  • Production method for continuous basalt fiber
  • Production method for continuous basalt fiber
  • Production method for continuous basalt fiber

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Embodiment Construction

[0027] The invention collects andesite, basaltic andesite, tholeiitic basalt and alkaline basalt from four different regions in China. First determine the chemical composition and mineral composition of each basalt ore CBF1, CBF2, CBF3 and CBF4, and then prepare basalt glass and monofilament. Finally, the melting process parameters, fiber forming process parameters and tensile strength are determined. The composition, melting process parameters and fiber forming process parameters of basalt are shown in Table 1 and Table 2.

[0028] Chemical composition (wt%) of table 1 basalt

[0029] chemical composition CBF1 CBF2 CBF3 CBF4 SiO 2

57.5 54.12 51.79 46.45 Al 2 o 3

16.85 13.98 16.54 16.39 TiO 2

1.16 0.9 1.63 1.91 Fe 2 o 3

3.86 6.81 4.47 9.13 FeO 3.22 3.19 4.4 0.76 MgO 2.64 4.88 5.25 7.16 CaO 3.75 6 8.37 8.99 Na 2 o

3.27 3.24 2.29 6.6 K 2 o

2.58 2.85 0.9 ...

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Abstract

The invention discloses a production method for continuous basalt fiber. The production method is characterized by comprising the following steps: 1) material selection, i.e., comprehensive determination of raw basalt materials for production of the continuous basalt fiber based on the chemical components and mineral components of basalt: analyzing the content of SiO2 in the chemical components of basalt, selecting basalt with SiO2 content of 48 to 63% and with saturated or oversaturated SiO2, analyzing the mineral component of basalt, removing basalt containing olivine and selecting basalt with mineral components consisting of, by weight, 15 to 27% of quartz, 10 to 18% of orthoclase, 30 to 50% of plagioclase or 45 to 60% of plagioclase, and 15 to 30% of pyroxene; and 2) fusing and fiber molding of the selected raw basalt materials so as to obtain the continuous basalt fiber. The production method provided by the invention can substantially improve accuracy in basalt selection and optimize the fusing process and fiber molding process of a basalt melt, enables the basalt melt to be easy to homogenize and provides effective bases and criteria for production of the continuous basalt fiber.

Description

technical field [0001] The invention relates to a method for optimizing the continuous basalt fiber production process through mineral components, and belongs to the technical field of new materials. Background technique [0002] Continuous basalt fiber (Continuous Basalt Fiber, referred to as CBF) is a continuous fiber made of basalt as raw material, melted at high temperature, and drawn through bushing plates. Although basalt is widely distributed in the world, not all basalt can be used to produce continuous basalt fiber, and the ore used to produce continuous basalt fiber has strict chemical composition and mineral composition. Basalt is composed of silicate mineral components and a small amount of amorphous (glassy state), and its chemical composition is mainly SiO 2 、Al 2 o 3 , Fe 2 o 3 , FeO, MgO, CaO, Na 2 O, K 2 O, TiO 2 etc. The mineral components are mainly quartz, feldspar, pyroxene, olivine, magnetite, ilmenite and so on. The mineral composition of basa...

Claims

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Application Information

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IPC IPC(8): C03C13/06C03B37/005C03B5/00
CPCC03B5/00C03B37/005C03C13/06
Inventor 吴智深霍海滨陈兴芬
Owner SOUTHEAST UNIV
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