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Patent Searching and Data


Title:
METHOD FOR PREPARING SEALING SLEEVE
Document Type and Number:
WIPO Patent Application WO/2017/179811
Kind Code:
A1
Abstract:
An embodiment of the present invention, in a method for preparing a sealing sleeve, comprises: a preparation step for preparing a metal powder body comprising a molding lubricant and metal powder comprising iron; a molding step for charging the metal powder body into a mold, applying pressure to the metal powder body and thus molding same into a green compact; a sintering step for sintering the green compact and thus forming a sintered compact; a fixing step for applying pressure to the inner side of the sintered compact, forming a predetermined curvature with respect to the inside diameter of a housing, and preparing a fixed compact; an impregnating step for resin-impregnating the fixed compact and thus sealing the micropores of the fixed compact; and a plating step for plating the fixed compact for which resin-impregnation has been performed and thus completing a sealing sleeve.

Inventors:
BAE, Chang Hwan (25Eonju-ro 124-gil, Gangnam-gu, Seoul, 06101, KR)
JUN, Yong Jin (30246, Byeongbangsijang-roGyeyang-gu, Incheon, 21025, KR)
LEE, Jong Cheol (110-202, 10 Dongyang-ro,Gyeyang-gu, Incheon, 21022, KR)
HWANG, Kwon Ung (220-17, Heungsin-ro Tongjin-eup,Gimpo-si, Gyeonggi-do, 10034, KR)
Application Number:
KR2017/001842
Publication Date:
October 19, 2017
Filing Date:
February 20, 2017
Export Citation:
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Assignee:
HANATECH.CO (220-17, Heungsin-ro Tongjin-eup,Gimpo-si, Gyeonggi-do, 10034, KR)
International Classes:
B22F5/10; B22F3/12; B22F3/24; B22F3/26; B23P15/00; C22C38/42; F16L9/02
Foreign References:
JP2010091001A2010-04-22
JP2010007721A2010-01-14
KR200404467Y12005-12-23
JP2000055049A2000-02-22
JP2003287028A2003-10-10
Attorney, Agent or Firm:
HAN, Sang Soo (3F. 190, Baumoe-ro,Seocho-gu, Seoul, 06747, KR)
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