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 c

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

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0020] Example 1

[0021] The core material of the vacuum insulation panel of 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 tapping, which is also called beating Degree, reflecting the effect of the refining effect of the fiber being cut, split, swelled, and hydrated after the slurry passes through the refiner. The mineral wool is rock wool and / or slag wool. After the natural rock or metallurgical slag is melted in a cupola or tank kiln, the fiber diameter is 4-6μm and the length is 1.0~ The mineral wool with 4.0mm and 20% moisture content has low raw material cost, which is beneficial to reduce production costs.

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

[0023] a) Glass fiber...

Example Embodiment

[0033] Example 2

[0034] For the core material of the vacuum insulation panel of this example, the "45Kg glass fiber wool 27°SR" in Example 1 is replaced with "45Kg glass fiber wool 29°SR". The rest are the same as in Example 1, using the material of Example 1. In the manufacturing method, in step d, the PH value of the mixed slurry is adjusted to 2.9 to prepare a vacuum insulation board core material, and conduct sampling inspection to measure its thermal conductivity, and compare it with the thermal conductivity of other core materials. The comparison results are as follows table:

[0035] name

Example Embodiment

[0036] Example 3

[0037] For the core material of the vacuum insulation panel of this example, the "45Kg glass fiber wool 31°SR" in Example 1 is replaced with "45Kg glass fiber wool 29°SR". The rest are the same as in Example 1, using the material of Example 1. The manufacturing method, step d adjusts the PH value of the mixed slurry to 2.8 to prepare a vacuum insulation board core material, and conduct sampling inspection to measure its thermal conductivity, and compare it with the thermal conductivity of other core materials. The comparison results are as follows table:

[0038] name

[0039] It can be known from Examples 1 to 3 that the thermal conductivity of mineral wool and glass fiber wool core materials is slightly lower than that of pure glass fiber wool, and at the same time lower than other thermal insulation 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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