Method and device for determining thermal conductivity, and manufacture of thermal isolating parts

A technology of thermal conductivity and measurement method, which is applied in the direction of material thermal conductivity, etc., can solve problems such as difficult judgment, difficult product inspection, and inability to measure thermal conductivity, so as to achieve the effect of easy manufacturing and preventing thermal bridges

Inactive Publication Date: 2002-05-29
NISSHINBO IND INC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, in the plate comparison method, since the measurement takes one hour, it is difficult to inspect a large number of products. In addition, in the reverse vacuum method, it is impossible to measure the correct thermal conductivity. In addition, in the air slowly When entering, it is difficult to judge visually

Method used

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  • Method and device for determining thermal conductivity, and manufacture of thermal isolating parts
  • Method and device for determining thermal conductivity, and manufacture of thermal isolating parts
  • Method and device for determining thermal conductivity, and manufacture of thermal isolating parts

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Embodiment Construction

[0025] Embodiments of the present invention are described below with reference to the accompanying drawings.

[0026] (A) Thermal conductivity measurement equipment

[0027] This thermal conductivity measuring device 1 is in contact with an object to be measured 6 such as a heat insulating member, and measures thermal conductivity, for example, as figure 1 As shown, it includes a thermal resistance component 3 and a heat generating device 2 . This thermal resistance member 3 is used to measure the temperature difference inside. Moreover, a vacuum heat insulating material is contained in this heat insulating material.

[0028] Through the heat generating device 2, heat is generated between the measured object 6 and the thermal resistance component 3, and the heat flows through the measured object 6 and the thermal resistance component 3, which can be generated according to the heat flow 31 flowing through the inside of the thermal resistance component 3. The temperature diff...

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Abstract

The object of the invention is that measuring the heat conductivity of an object to be measured in a short time, comprising generating heat between the object to be measured and a heat resistant material, causing heat to flow through the interior of the object to be measured and the interior of the heat resistant material and obtaining the heat conductivity of the object to be measured from a temperature difference between at least two points of the heat resistant material, a heat conductivity measuring instrument using the same and a method of producing a heat insulating material.

Description

technical field [0001] The present invention relates to the measurement of the thermal conductivity of substances and the manufacture of heat insulating parts. Background technique [0002] In the past, the measurement of thermal conductivity was carried out in the following way: through the flat plate comparison method of JIS A 1412, that is, the test body and the standard plate are overlapped, the temperature difference is provided, and the corresponding surface temperature difference is measured. According to the ratio and the standard The thermal conductivity of the plate is used to calculate the thermal conductivity of the test body. In addition, in the case of vacuum heat insulating materials, the measurement is carried out by the so-called reverse vacuum method. In this method, the vacuum heat insulating materials are placed in a container to make it in a vacuum state, thereby visually inspecting the vacuum insulation. Whether hot parts expand. [0003] However, in ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N25/18
CPCG01N25/18
Inventor 中礼司林圣人小山朋宏长谷川寿一青岛武
Owner NISSHINBO IND INC
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