PROBLEM TO BE SOLVED: To provide a vacuum heat insulating material and a refrigerator capable of securing reliability by reducing time degradation of heat insulating performance when the vacuum heat insulating material is used in a housing, with respect to the vacuum heat insulating material and the refrigerator using the same. SOLUTION: In this refrigerator wherein the vacuum heat insulating material 30 having a core material 31 composed of a fiber material laminated body, an outer wrapping material covering the core material 31 and composed of a plurality of layers, and an adsorbing material mounted inside of the outer wrapping material, is attached to one of an outer plate 11 and an inner plate 12 between the outer plate 11 and the inner plate 12 of a heat insulating housing to form a heat insulating part with urethane foam mounted between the outer plate 11 and the inner plate 12, the outer wrapping material has a plurality of deposited layers formed by metal deposition on a base material composed of resin in such a state that the plurality of deposited layers are overlapped and stacked to be oppositely kept into contact with each other. COPYRIGHT: (C)2006,JPO&NCIPI

Vacuum heat insulating material and refrigerator using the same

A vacuum heat insulating material (7) including: a core material (5) structured by a laminated structure of an organic fiber assembly (1) formed by forming an organic fiber into a sheet shape and cutting an end face with a predetermined length, and having a core material opening portion formed by a through hole or a notch with cutting; a gas-barrier outer cover material (4) containing the core material (5) inside, having a sealing portion for sealing surrounding of the sheet-shaped organic fiber assembly (1) and surrounding of the core material opening portion, and hermetically sealing an inside with almost vacuum status by sealing the sealing portion; and an outer cover material opening portion provided at the outer cover material (4) under a status in which the sealing portion provided at the surrounding of the sheet-shaped organic fiber assembly (1) and the surrounding of the core material opening portion is sealed, being a through hole or a notch which is smaller than the core material opening portion with a sealed amount, and a long fiber being equal to or longer than a length of the sheet is used for the organic fiber.

Vacuum heat insulating material, heat insulating box using vacuum heat insulating material, refrigerator, refrigerating/air-conditioning apparatus, water heater, equipments, and manufacturing method of vacuum heat insulating material

PROBLEM TO BE SOLVED: To suppress reduction of heat insulating performance and the occurrence of poor leakage by improving slidability for an outer coating material of a core material so as to alleviate stress concentration on a bend portion of the outer coating material and minimize shrinkage of the outer coating material and the occurrence of wrinkles in the bend portion when a vacuum heat insulating material is bent.SOLUTION: The vacuum heat insulating material includes a core material of a plurality of laminated bodies containing a fiber of long fiber web, and an outer coating member having gas barrier property. The core material is composed of the plurality of laminated bodies each having a fiber containing at least a resin fiber of a different friction coefficient for each laminated body. By changing a condition of the surface of the resin fiber, a friction coefficient of the core material and the innermost layer of the outer coating material contacted with the core material is provided to be smaller than a friction coefficient of core materials having different friction coefficients. Accordingly, the stress applied on the bend portion is alleviated when the vacuum heat insulating material is bent. The core material different in friction coefficient for each laminated body a plurality of laminated bodies formed by melt spinning of a melt-blown method using resin or a spun-bonding method.

Vacuum heat insulating material, and heat insulating box and refrigerator using the same

The invention relates to a method for manufacturing vacuum insulation panels (1) with a fiber core (3), comprising the steps of: providing a core blank of fibers, compressing the core blank to a predetermined final thickness for forming the core, evacuating a foil sleeve (2, 2') enclosing the core up to a pressure of < 1 mbar, and sealing the foil sleeve. The method according to the invention is characterized by the fact that, in the compression step, the core blank is arranged between two cover elements and is mechanically compressed therebetween, that the core is kept under compression pressure until the foil sleeve is sealed, and that the compression step is performed at the place of manufacture at room temperature without thermal impact. Thus, a method for manufacturing vacuum insulation panels with a fiber core can be improved such that it can be performed with reduced energy requirement and yet the insulating effect of the vacuum insulation panels does not suffer therefrom.

Method for manufacturing vacuum insulation panels

In a vacuum thermal insulating material having a core material enclosed in a gas barrier container whose inside is made to be a decompressed state, the core material has a lamination structure in which a plurality of sheet-shaped long fiber organic fibrous assemblies are continuously wound up from an inner periphery to an outer periphery. Then, a plurality of sheet-shaped organic fibrous assemblies are arranged in parallel and sheet-shaped multiple organic fibrous assemblies having joint sections are formed. The joint sections are made not to overlap with the upper and lower of joint sections.

Vacuum thermal insulating material and method of manufacturing the same, and thermal insulating box having the vacuum thermal insulating material

Disclosed is a vacuum heat insulation material which places very little burden on the environment during production and recycling processes. This vacuum heat insulation material has excellent handling properties and workability, and keeps providing good heat insulation for a long time. Specifically disclosed is a vacuum heat insulation material which is characterized by comprising at least a padding material and an envelope for holding the padding material which envelope is capable of maintaining the inside at a reduced pressure. The vacuum heat insulation material is also characterized in that the padding material is composed of a sheet-like fiber assembly containing not less than 50% by weight of polyester fibers having a fiber size of 1-6 denier.

Vacuum heat insulation material

Popular Tasks used by Researchers

How can I help with your research?

Get more enhanced response by uploading the PDFs you want me to reference.

No relevant PDFs in your library

SciSpace is the AI research assistant for academics. Run systematic literature reviews on 280M+ papers, and write papers with cited sources. Trusted by 1M+ students, PhDs & researchers.

SciSpace | AI for Research

We encountered an error while loading the panel. Please try refreshing the page.

Something went wrong

Analyze PDFs

Code & Manuscripts

Funding & Grants

Literature & Patents

Medical & Clinical Data

Systematic Review

Visualize & Present

Web & Data

Build a Google Scholar-like website for your research.

Build a website

Create charts and images for your research

Create a Chart

Write a paper for submission to a journal

Draft a manuscript

Patent Search

Design eye-catching scientific posters in minutes.

Scientific Poster Generation

Systematic Literature Review

Anyone with the link can view this chat. You can switch it back to private anytime.

One task is running at the moment. Your messages will be shown right after.

Drag and drop or click here to browse

Loved by <highlight>1 million+</highlight> researchers

Extract a list of specific topics and their sources from unstructured text

Topics

Compare and analyze relevant papers that matches with your search

Papers

Get insights from PDFs and bookmarked papers from your library

My library

Recent searches

Try searching for:

Catch AI-generated content in scholarly and non-scholarly content

{ai} Detector

Ai Writer

Get PDF Summaries, highlighted text explanations 

Chat with PDF

Effortlessly create in-text citations and bibliographies in APA and 2,500 other formats

Citation generator

Get explanations, summaries, and answers on academic papers

Ease up your research workflow with {scispace}'s cohort of exciting AI tools

Elevate your academic writing skills and convey your ideas the way you want

Paraphraser

Explore our range of reading and writing tools

Your file is being prepared and should be ready in a few minutes. If it's a large file, it might take a bit longer. You can close this window, and we'll email you the file when it's done.

You have reached a maximum limit of <strong>{limit}</strong> columns in the table. Remove at least <strong>1</strong> column to add or create another one.

Hiroyuki Takashima

Author Tools

Chat about Author

Papers

Vacuum heat insulation material