Title:
METHOD FOR PRODUCING SOLENOID VALVE SHEET HOUSING FOR ANTI-LOCK BRAKE SYSTEM
Document Type and Number:
WIPO Patent Application WO/2016/140395
Kind Code:
A1
Abstract:
In production of a solenoid valve sheet housing for an anti-lock brake system (ABS), the aim of the present invention is to make it possible to form a valve sheet housing with a micro size (2-8 mm) by means of a multi-stepped micro former, thereby not only enhancing productivity but also implementing satisfactory functions of the valve sheet housing by satisfying the roughness of a ball sheet. To achieve the above-mentioned aim, the present invention produces a solenoid valve sheet housing for an ABS for braking a vehicle by a cold forging process using a multi-stepped micro former, wherein the valve sheet housing is formed by the following processes: a material cutting process of cutting a CHQ wire coil wound in a roll shape at a certain length to obtain an annular material; a correction up-setting process of supplying the material to a dice of a former and correcting the cross section of the cut material; a preforming up-setting process for satisfying an outer diameter of the valve sheet housing by transferring the material; a preforming forward extrusion process of transferring the material to preform the material into the shape of a product; a composite forming process of transferring the material to simultaneously perform an inner diameter hole backward extrusion process and form a valve sheet; a beveling process of beveling the outer diameter by rotating the material at 180° while transferring the material; and a piercing process of forming a flow path with ultramicropores, i.e. ultramicroholes (orifices), in the center of a sheet part by rotating the material again at 180° while transferring the material.
Inventors:
PARK SANG GYUN (KR)
KIM JUNG HYUN (KR)
KIM JUNG HYUN (KR)
Application Number:
PCT/KR2015/003810
Publication Date:
September 09, 2016
Filing Date:
April 16, 2015
Export Citation:
Assignee:
SUNGJIN FO-MA INC (KR)
International Classes:
B21K1/24; B21D31/02; B21J5/08
Foreign References:
| KR20110022356A | 2011-03-07 | |||
| KR100840214B1 | 2008-06-25 | |||
| KR19980013633A | 1998-05-15 | |||
| KR20130127277A | 2013-11-22 | |||
| KR20090078870A | 2009-07-21 |
Attorney, Agent or Firm:
PARK, JUNG HO (KR)
박정호 (KR)
박정호 (KR)
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