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Method for manufacturing foaming basalt thermal insulation material

A technology of thermal insulation material and production method, applied in the field of thermal insulation material, can solve the problems of poor durability and poor flexibility of foam glass, and achieve the effect of simple method and easy operation

Inactive Publication Date: 2015-03-25
哈尔滨时代创新科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the disadvantages of poor weather resistance, durability and poor flexibility of foam glass in the existing thermal insulation materials, and provide a kind of foam glass with basalt as raw material and titanium hydride as foaming agent, which has good thermal insulation effect, high weather resistance and high thermal insulation effect. Production method of thermal insulation material with good durability, plasticity, good electrical insulation performance and good sound insulation effect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0009] Specific implementation mode 1: In this implementation mode, the foamed basalt insulation material contains 45% to 52% (mass) SiO 2 The basalt ore is used as the raw material, and the titanium hydride powder is used as the foaming agent, and it is made by foaming at 620-680 ° C; the specific steps are as follows: the silicon dioxide containing 45%-52% (mass) SiO 2 The basalt ore is crushed to a particle size below 800 mesh, then heated to melt and then kept for 10-15 minutes, cooled to 620-680°C at a speed of 25-30°C / min, and then injected into a mold filled with titanium hydride powder, continue Cool down to room temperature at a rate of 25-30°C / min, which is the foamed basalt insulation material.

[0010] The foamed basalt thermal insulation material of this embodiment has a large number of fine closed-cell bubble structures, the pore size varies from nanometer to micrometer, and the distribution of pores is uniform. The main technical indicators are shown in Table 1....

specific Embodiment approach 2

[0013] Specific implementation mode two: the preparation method of foamed basalt insulation material in the present embodiment is carried out according to the following steps: will contain 45% (mass) SiO 2 The basalt ore is crushed to a particle size of 800 mesh, then heated to melt and then kept for 15 minutes, cooled to 680°C at a speed of 30°C / min, and then injected into a mold filled with titanium hydride powder. The mass ratio of titanium hydride powder to basalt ore It is 0.03:1, and continue to cool down to room temperature at a rate of 30°C / min, which is the foamed basalt insulation material.

[0014] The foamed basalt thermal insulation material of this embodiment has a large number of fine closed-cell bubble structures, the pore diameters range from nanometer to micrometer, and the distribution of pores is uniform. The main technical indicators are shown in Table 2.

[0015] Table 2: The main technical indicators of the foamed basalt thermal insulation material in th...

specific Embodiment approach 3

[0017] Specific implementation method three: the preparation method of the foamed basalt thermal insulation material in this embodiment is carried out according to the following steps: will contain 48% (mass) SiO 2 The basalt ore is crushed to a particle size of 800 mesh, then heated to melt and then kept for 10 minutes, cooled to 650°C at a speed of 30°C / min, and then injected into a mold filled with titanium hydride powder. The mass ratio of titanium hydride powder to basalt ore It is 0.033:1, and continue to cool down to room temperature at a rate of 30°C / min, which is the foamed basalt insulation material.

[0018] The foamed basalt thermal insulation material of this embodiment has a large number of fine closed-cell bubble structures, the pore size varies from nanometer to micrometer, and the distribution of pores is uniform. The main technical indicators are shown in Table 3.

[0019] Table 3: The main technical indicators of the foamed basalt insulation material in this...

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Abstract

The invention belongs to the field of thermal insulation materials, and discloses a method for manufacturing a foaming basalt thermal insulation material to solve the technical problem that existing thermal insulation materials are poor in weather resistance and durability and foam glass is poor in flexibility. The foaming basalt thermal insulation material is prepared through foaming by taking basalt ore which contains, by weight, 45% to 52% of SiO2 as raw materials and taking titanium hydride powder as a foaming agent. The method for manufacturing the foaming basalt thermal insulation material includes the steps of grinding the basalt ore which contains, by weight, 45% to 52% of SiO2 into powder with the grain size smaller than 800 meshes, conducting heating till the powder is molten, keeping the temperature for 10min to 15min, conducting cooling at a speed of 25 DEG C / min to 30 DEG C / min till the temperature reaches 620 DEG C to 680 DEG C, pouring the molten basalt ore into a die containing the titanium hydride powder, continuing to conduct cooling at a speed of 25 DEG C / min to 30 DEG C / min till the temperature reaches the room temperature, and obtaining the foaming basalt thermal insulation material. The inventive produce has good thermal insulation effect, small density, many characteristics such as weatherability, high durability, high electrical insulation, and higher sound insulation or the like, as well as reduced brittleness coefficient, and good flexibility.

Description

technical field [0001] The invention belongs to the field of thermal insulation materials; in particular, it relates to a manufacturing method of foamed basalt thermal insulation materials. Background technique [0002] At present, there are two main types of insulation materials commonly used: the first type is inorganic insulation materials such as expanded perlite and insulation mortar, and the second type is organic foam insulation boards represented by EPS. Among them, the first type of inorganic thermal insulation materials are easy to absorb water, and the thermal insulation performance is seriously reduced after washing; the second type of organic foam insulation boards are not easy to absorb water, but they are easy to age under high temperature, sunlight and other working environments, and the long-term thermal insulation performance will be serious. decline. For some special working environments, such as high temperature and high humidity environments, a high wea...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B38/02
Inventor 刘希辉刘佐夫范文博
Owner 哈尔滨时代创新科技发展有限公司