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Insulation rock wool board with density gradient and manufacturing method thereof

A density gradient and manufacturing method technology, applied in the direction of thermal insulation, building components, etc., can solve the problems of insufficient mechanical strength, low thermal conductivity, large construction load, etc., and achieve the effects of improved peeling resistance, promoted bonding, and enhanced performance

Inactive Publication Date: 2017-04-05
MAANSHAN HONGDA INSULATION MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the problems of high density, heavy construction load and insufficient mechanical strength in existing rock wool boards, one of the purposes of the present invention is to provide a thermal insulation rock wool board with a density gradient, which is composed of iron ore, perlite, slag and Limestone and other minerals are manufactured according to a certain ratio, and a certain amount of water repellent and adhesive are added in the process to make the rock wool board have a reasonable density gradient and ensure a lower thermal conductivity

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A thermal insulation rock wool board with a density gradient is made from the following raw materials by weight: 60 parts of iron ore, 12 parts of perlite, 15 parts of slag, 10 parts of limestone, 5 parts of water repellent, 3-aminopropyl 1 part of triethoxysilane, 5 parts of urea and 9 parts of phenolic resin; the content of iron in the iron ore is about 65%; the slag is acid slag, and SiO in the slag 2 content is more than Al 2 O 3 and the content of CaO.

[0037] The above-mentioned a kind of manufacture method of thermal insulation rock wool board with density gradient, its steps are:

[0038] (1) batching: the raw materials are mixed according to 60 parts of iron ore, 12 parts of perlite, 15 parts of slag, and 10 parts of limestone, and pulverized after mixing;

[0039] (2) Melting: the crushed material in step (1) is melted into magma in the furnace, the temperature in the furnace is controlled at about 1480 ° C, and liquid oxygen is added during melting, and t...

Embodiment 2

[0048] A thermal insulation rock wool board with a density gradient is made from the following raw materials by weight: 55 parts of iron ore, 15 parts of perlite, 16 parts of slag, 15 parts of limestone, 6 parts of water repellent, 3-aminopropyl 2 parts of triethoxysilane, 5 parts of urea and 10 parts of phenolic resin; the content of iron in the iron ore is about 73%; the slag is acid slag.

[0049] The above-mentioned a kind of manufacture method of thermal insulation rock wool board with density gradient, its steps are:

[0050] (1) batching: the raw materials are mixed according to 55 parts of iron ore, 15 parts of perlite, 16 parts of slag, and 15 parts of limestone, and pulverized after mixing;

[0051] (2) Melting: the crushed material in step (1) is melted into magma in the furnace, the temperature in the furnace is controlled at about 1550 ° C, and liquid oxygen is added during melting, and the amount of liquid oxygen added is 18 m 3 ;

[0052] (3) Fibrosis: The mag...

Embodiment 3

[0060] A thermal insulation rock wool board with a density gradient is made from the following raw materials by weight: 50 parts of iron ore, 10 parts of perlite, 12 parts of slag, 13 parts of limestone, 4 parts of water repellent, 3-aminopropyl 1 part of triethoxysilane, 6 parts of urea and 8 parts of phenolic resin; the content of iron in the iron ore is about 71%; the slag is acid slag.

[0061] The above-mentioned a kind of manufacture method of thermal insulation rock wool board with density gradient, its steps are:

[0062] (1) batching: the raw materials are mixed according to 50 parts of iron ore, 10 parts of perlite, 12 parts of slag, and 13 parts of limestone, and pulverized after mixing;

[0063] (2) Melting: The crushed material in step (1) is melted into magma in the furnace, the temperature in the furnace is controlled at about 1520 ° C, and liquid oxygen is added during melting, and the amount of liquid oxygen added is 12 m 3 ;

[0064] (3) Fibrosis: The magma...

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Abstract

The invention discloses an insulation rock wool board with density gradient and a manufacturing method thereof, which belongs to the field of building materials. The rock wool board provided by the invention is prepared by, by weight, 50 to 60 parts of iron ore, 10 to 15 parts of perlite, 12 to 16 parts of slag, 10 to 15 parts of limestone, 4 to 6 parts of water repellent, 5 to 6 parts of urea, 8 to 10 parts of phenolic resin, and 1 to 2 parts of 3-aminopropyltriethoxysilane. According to the invention, in the rock wool board formula, the ratio of magnesium, calcium and iron is in triangle balance; high quality rock wool fiber is acquired; the water repellent and an adhesive are used; a differential centrifugation method is used to prepare cellosilk; rock wool is pressed by the differential compression method of a fancy roller to finally acquire the insulation rock wool board with density gradient; the rock wool strength of the surface layer is improved; and the comprehensive mechanical strength of the rock wool material is effectively improved.

Description

technical field [0001] The invention belongs to the field of building materials, and more particularly relates to a thermal insulation rock wool board with a density gradient and a manufacturing method thereof. Background technique [0002] Rock wool board was introduced into China in the late 1990s. After more than 10 years of rapid development, it has been widely recognized and has become the first choice for many engineering projects. Rock wool is a grade A non-combustible thermal insulation material, which is widely used in the thermal insulation of building envelopes in my country, but there are still some shortcomings in practical engineering applications. Mechanical strength requirements are often achieved by increasing the density of rock wool boards. However, the increase in density will inevitably have a negative impact on the cost, construction and load, and even increase the thermal conductivity. [0003] At present, there are many research reports on rock wool ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B1/80C03C13/06
CPCE04B1/80C03C13/06
Inventor 杨徽束青华
Owner MAANSHAN HONGDA INSULATION MATERIAL