Title:
HYBRID DIE CASTING PROCESS
Document Type and Number:
WIPO Patent Application WO/2014/168278
Kind Code:
A1
Abstract:
The hybrid die casting process according to the present invention is characterized by: using a hybrid mold provided with a pair of cavities having the shape of an air conditioner piston; setting a vacuum condition and a local pressing condition created in the cavities appropriately for an air conditioner piston product; with the air conditioner piston shapes filled with molten metal, locally pressing the filled molten metal while creating a high vacuum in each air conditioner piston shape, and simultaneously producing two air conditioner piston products; and thereby manufacturing easily and in large quantities air conditioner pistons (100) having a significantly low bubble content and also having a high degree of hardness required for air conditioner compressors during the manufacturing processes.
Inventors:
KIM JAE-GEUN (KR)
JEONG YANG-JOO (KR)
BAEK UN-CHEOL (KR)
KIM JONG-JUN (KR)
JEONG YANG-JOO (KR)
BAEK UN-CHEOL (KR)
KIM JONG-JUN (KR)
Application Number:
PCT/KR2013/003491
Publication Date:
October 16, 2014
Filing Date:
April 24, 2013
Export Citation:
Assignee:
GREENAL CHEMY CO LTD (KR)
International Classes:
B22D17/00; B22D17/18; B22D17/20; B22D17/22
Foreign References:
| KR20090080767A | 2009-07-27 | |||
| KR20000009993A | 2000-02-15 | |||
| JP2011020158A | 2011-02-03 | |||
| KR100956977B1 | 2010-05-11 | |||
| KR100676382B1 | 2007-02-01 |
Attorney, Agent or Firm:
Hanyang Patent Firm (KR)
한양특허법인 (KR)
한양특허법인 (KR)
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