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Title:
INLINE MELT CONTROL VIA RF POWER
Document Type and Number:
Japanese Patent JP2014098538
Kind Code:
A
Abstract:

To provide apparatus and methods for melting materials while controlling uniformity and temperature of the melt, and for containing the molten materials within a melt zone during melting without using a gate for physical blocking.

An apparatus may include: a vessel configured to receive a material for melting therein; a load induction coil positioned adjacently to the vessel to melt the material therein; and a containment induction coil positioned in line with the load induction coil. The material in the vessel can be heated by operating the load induction coil at a first RF frequency to form a molten material. The containment induction coil can be operated at a second RF frequency to contain the molten material within the load induction coil. Once the desired temperature is achieved and maintained for the molten material, operation of the containment induction coil can be stopped and the molten material can be ejected from the vessel into a mold through an ejection path.


Inventors:
THEODORE A WANIUK
JOSEPH STEVICK
SEAN O'KEEFFE
DERMOT J STRATTON
JOSEPH C POOLE
SCOTT MATTHEW S
CHRISTOPHER D PREST
Application Number:
JP2013000213211
Publication Date:
May 29, 2014
Filing Date:
October 10, 2013
Export Citation:
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Assignee:
APPLE INC
CRUCIBLE INTELLECTUAL PROP LLC
International Classes:
F27B5/14; B22D17/30; B22D27/02; F27B5/18; F27D11/06; C22C1/00; F27B5/05
Domestic Patent References:
JP2009139905A2009-06-25
JPH09323146A1997-12-16
JP2007209993A2007-08-23
JPH04162940A1992-06-08
JPH05200513A1993-08-10
JP2001018053A2001-01-23
JPH06114523A1994-04-26
JPH04162940A1992-06-08
JPH05200513A1993-08-10
JP2001018053A2001-01-23
JP2000119826A2000-04-25
JP2010208223A2010-09-24
JPH0683888B21994-10-26
JPH08187566A1996-07-23
JPH0367487A1991-03-22
Attorney, Agent or Firm:
Yasunori Otsuka
Shiro Takayanagi
Yasuhiro Otsuka
Shuji Kimura
Osamu Shimoyama
Nagakawa Yumitsu