Vacuum heat insulation plate core material and manufacturing method thereof

A technology of a vacuum insulation panel and a manufacturing method, which is applied to heat exchange equipment, protects pipelines through heat insulation, heat preservation, etc., can solve the problems of short heat preservation life of available space, bulky core material, and low thermal conductivity, and achieves environmental protection. The scope of use, the production process is simple, and the effect of saving manufacturing costs

Inactive Publication Date: 2012-01-25
SUZHOU V I P NEW MATERIAL
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, due to the different application fields of different types of vacuum insulation panels, the selection of core materials is also different. For home appliance insulation and building exterior wall insulation, it is required to have good thermal resistance and low thermal conductivity. At present, the thermal conductivity of most v

Method used

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Examples

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Embodiment

[0027] A vacuum insulation panel core material, which is made of glass fiber wool produced by centrifugal method with a diameter of 3.5-5um and a length of 5-20mm and glass fiber wool produced by a flame method with a diameter of 1.5-2.5um and a length of 1-5mm into; the glass fiber cotton produced by the flame method accounts for 70%, and the glass fiber cotton produced by the centrifugal method accounts for 30%.

[0028] A method for manufacturing a core material of a vacuum insulation panel, the specific steps are as follows:

[0029] (1) Take the glass fiber wool produced by the centrifugal method with a diameter of 3.5-5um and a length of 5-20mm and the glass fiber wool produced by the flame method with a diameter of 1.5-2.5um and a length of 1-5mm; the glass wool produced by the flame method Fiber cotton accounts for 70%, and the glass fiber cotton produced by the centrifugal method accounts for 30%;

[0030] (2) Stir the glass fiber cotton with water evenly and then se...

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PUM

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Abstract

The invention discloses a manufacturing method of a vacuum heat insulation plate core material, which specifically comprises the steps that: glass fiber cotton which is manufactured through a centrifugation method and a flame method is pulped, diluted, applied onto a mesh, dewatered and formed, rolled and formed, dewatered in vacuum negative pressure, dried, cooled and cut. According to the invention, the glass fiber cotton which is manufactured through the 30 percent centrifugation method and the glass fiber cotton which is manufactured through the 70 percent flame method serve as the raw material of the vacuum heat insulation plate core material, the heat transfer coefficient of the manufactured vacuum heat insulation plate core material is 0.0025W/m.k to 0.004 W/m.k, the heat insulation coefficient of the heat insulation plate is 0.0005 W/m.k higher than that of the vacuum heat insulation plate core material which adopts the glass fiber cotton manufactured through the 100 percent flame method as the raw material, so that the impact on the heat insulation effect is small, and the manufacturing cost of the vacuum heat insulation plate core material is greatly saved; and the thickness of the core material is 0.5mm to 8mm, and the thickness difference from that of the vacuum heat insulation plate core material which adopts the glass fiber cotton manufactured through the 100 percent flame method as the raw material is not big.

Description

technical field [0001] The invention relates to a core material of a vacuum insulation board and a manufacturing method thereof, in particular to a manufacturing method using glass fiber cotton as a raw material. Background technique [0002] At present, the vacuum insulation panel has been applied in various fields, and it meets the requirements of customers with the characteristics of energy saving, low carbon, environmental protection and safety. Through research and actual operation, it can be seen that the selection and production method of the core material inside the vacuum insulation panel has a great influence on its performance. The core material is generally made of porous media materials, such as airgel, microporous polyurethane, silica powder, asbestos fiber, glass fiber, etc. For the core material of the vacuum insulation panel, it must have the following four characteristics: 1. It can support the vacuum insulation panel under high vacuum and negative pressur...

Claims

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Application Information

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IPC IPC(8): F16L59/065
Inventor 周介明
Owner SUZHOU V I P NEW MATERIAL
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