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Vacuum insulated panel core material and manufacturing method thereof

A technology of vacuum insulation panels and core materials, which is applied to heat exchange equipment, protected pipes through thermal insulation, thermal insulation, etc., can solve the problems of high manufacturing cost, low manufacturing cost, and inability to achieve ideal thermal insulation performance, and achieves a reduction in manufacturing costs. Cost and thermal insulation improvement effect

Active Publication Date: 2010-08-04
CHONGQING ZAISHENG TECH CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the commonly used vacuum insulation panels mainly use polymerized organic fibers, centrifugal cotton and glass fiber cotton, glass fibers sprayed with organic binders, etc. as core materials, and polymerized organic fiber core materials, centrifugal cotton and glass fiber cotton core materials The manufacturing cost is lower, but its thermal insulation performance cannot achieve the desired effect; the pure glass fiber core material has better thermal insulation effect, but its manufacturing cost is relatively high

Method used

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  • Vacuum insulated panel core material and manufacturing method thereof
  • Vacuum insulated panel core material and manufacturing method thereof

Examples

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Embodiment 1

[0021] The core material of the vacuum insulation panel in this embodiment includes the following raw materials: 48Kg mineral wool, 45Kg glass fiber wool 27°SR, 35Kg glass fiber wool 18°SR, where "°SR" refers to the degree of beating, also known as beating The degree reflects the effect of fiber cutting, splitting, swelling, and hydration after the pulp passes through the refiner. The mineral wool is rock wool and / or slag wool. After melting natural rock or metallurgical slag in equipment such as a cupola or a pool kiln, the fiber diameter is 4-6 μm and the length is 1.0-6 μm by blowing or centrifugation. 4.0mm, mineral wool with a moisture content of 20%, the raw material cost is low, which is beneficial to reduce the production cost.

[0022] The accompanying drawing is a process flow chart of the present invention, as shown in the figure: the method for manufacturing the core material of a vacuum insulation panel in this embodiment includes the following steps:

[0023] a)...

Embodiment 2

[0034] The raw material of the core material of the vacuum insulation panel in this embodiment is replaced by "45Kg glass fiber cotton 29 ° SR" in Example 1, and the rest are the same as in Example 1, and the method of Example 1 is adopted. In the manufacturing method, in step d, the pH value of the mixed slurry is adjusted to 2.9, and the core material of the vacuum insulation board is prepared, and a sampling inspection is carried out to measure its thermal conductivity, and compared with the sampled detection values ​​of thermal conductivity of other core materials, and the comparison results are as follows surface:

[0035] name

Embodiment 3

[0037] The raw material of the core material of the vacuum insulation panel in this embodiment is "45Kg glass fiber cotton 31°SR" in Example 1 replaced with "45Kg glass fiber cotton 29°SR". In the manufacturing method, in step d, the pH value of the mixed slurry is adjusted to 2.8, and the core material of the vacuum insulation board is prepared, and a sampling inspection is carried out to measure its thermal conductivity, and compare it with the thermal conductivity sampling detection values ​​of other core materials, and the comparison results are as follows surface:

[0038] name

[0039] From Examples 1 to 3, it can be known that the thermal conductivity of mineral wool and glass fiber cotton core materials is slightly lower than that of pure glass fiber wool, and is also lower than other heat preservation core materials. From the perspective of production cost, the manufacturing cost of the synthetic core material of mineral wool and glass fiber wool is also low...

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Abstract

The invention discloses a vacuum insulated panel core material, which comprises the following raw materials in parts by weight: 48 parts of mineral wool, 45 parts of glass fiber wool 27-30 degree SR and 35 parts of glass fiber wool 18 degree SR. The diameter of the fiber of the mineral wool is 4-6 mum, the length is 1.0-4.0mm and the water content is 20 percent. The manufacturing method of the vacuum insulated panel core material comprises the following steps: pumping of glass fiber wool, pulping of mineral wool, dilution and slag removal, regulation of acidity, slag removal and making, drying and cutting. Since the mineral wool is used, the manufacturing cost of the core material is greatly reduced and the insulation performance is improved to certain extent when the vacuum insulated panel core material is compared with pure glass fiber wool core material and other conventional core material.

Description

technical field [0001] The invention relates to a heat insulating material and a manufacturing method thereof, in particular to a vacuum heat insulating panel core material and a manufacturing method thereof. Background technique [0002] Vacuum insulation panels are widely used in refrigeration equipment such as refrigerators and freezers. They are placed in the interlayer of the outer wall of the equipment to reduce heat loss and energy consumption. The insulation performance of vacuum insulation panels mainly depends on the thermal conductivity of its core material. . [0003] At present, the commonly used vacuum insulation panels mainly use polymerized organic fibers, centrifugal cotton and glass fiber cotton, glass fibers sprayed with organic binders, etc. as core materials, and polymerized organic fiber core materials, centrifugal cotton and glass fiber cotton core materials The manufacturing cost is low, but its thermal insulation performance cannot achieve the ideal...

Claims

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Application Information

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IPC IPC(8): F16L59/02F16L59/065
Inventor 秦大江
Owner CHONGQING ZAISHENG TECH CORP
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