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Door for refrigerator and method for manufacturing the same, metal container and method for manufacturing the same, and apparatus and method for processing metal sheet

A technology of metal plates and refrigerators, which is applied in the field of refrigerator doors and its manufacturing, and can solve problems such as foaming agent leakage and damage to aesthetics

Active Publication Date: 2014-01-01
LG ELECTRONICS INC
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, the blowing agent will leak, or the aesthetics will be spoiled

Method used

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  • Door for refrigerator and method for manufacturing the same, metal container and method for manufacturing the same, and apparatus and method for processing metal sheet
  • Door for refrigerator and method for manufacturing the same, metal container and method for manufacturing the same, and apparatus and method for processing metal sheet
  • Door for refrigerator and method for manufacturing the same, metal container and method for manufacturing the same, and apparatus and method for processing metal sheet

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Embodiment Construction

[0025] Reference will now be made in detail to embodiments of the invention, examples of which are illustrated in the accompanying drawings.

[0026] In the following detailed description of the preferred embodiment, reference is made to the accompanying drawings, which form a part hereof, and in which are shown by way of illustration specific preferred embodiments in which the invention is practiced. These embodiments have been described in sufficient detail to enable those skilled in the art to practice the invention, it being understood that other embodiments may be utilized and that logical, mechanical, Electrical and chemical changes are made. Descriptions of certain information known to those skilled in the art may be omitted to avoid detail not necessary to enable those skilled in the art to practice the invention. Accordingly, the following detailed description is by no means limiting.

[0027] Exemplary embodiments of the present invention will be described in more ...

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Abstract

The invention provides a door for refrigerator and method for manufacturing the same, a metal container and method for manufacturing the same, and an apparatus and method for processing a metal sheet. Provided is a door for a refrigerator. The door for a refrigerator includes an outer door manufactured by pressing and deforming a metal sheet, the outer door including a first surface, second to fifth surfaces extending from the first surface, and a plurality of flanges extending from the second to fifth surfaces, wherein, when the metal sheet is pressed and deformed, the first to fifth surfaces are integrated with each other, a door liner coupled to outer circumferential surfaces of the plurality of flanges of the outer door, and an insulation material disposed in a space defined between the door liner and the outer door.

Description

technical field [0001] The present invention relates to a refrigerator door and its manufacturing method, a metal container and its manufacturing method, and an apparatus and method for processing metal plates. Background technique [0002] Generally, metal sheets can be processed by pressing using a die. However, when the metal plate has four corners, if the radius of each of the four corners of the stamper is small, the metal plate may be broken during metal plate processing. [0003] In case of manufacturing a refrigerator door using a metal plate according to the prior art, four corners of the metal plate may be chamfered and then vertically bent into sides. Then, the four sides are welded to be connected to each other. Thereafter, the borders of the four sides are chamfered, and then the parts of the four sides are folded inward to form flanges, thereby making the outer door. According to the above-described processing method, since the four side portions of the refr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25D23/02B21D21/00B21D51/18B21D35/00B21D26/021B21D26/031
CPCB29C53/02F25D23/028E06B1/12F25D23/02B21D22/205B21D45/06B21D51/52B21D53/00F25D23/06
Inventor 沈镇宇高映起
Owner LG ELECTRONICS INC
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