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Patent Searching and Data


Title:
VACUUM DEWAXING-SINTERING FURNACE
Document Type and Number:
Japanese Patent JPH09145257
Kind Code:
A
Abstract:

To conduct quickly dewaxing of a material to be treated and, moreover, to prevent effectively re-contact of binder vapor with the material after the dewaxing.

In a vacuum dewaxing-sintering furnace, a reduced pressure atmosphere is brought about inside a tight box 1 by exhausting gas therefrom while introducing a very small quantity of gas outside the tight box 1, at the time of dewaxing. After the dewaxing, a binder leaking out from the tight box 1 at the time of the preceding dewaxing is exhausted or drained from a low position inside a furnace body 11 and thereby the inside of the furnace body 11 is degasified. Accordingly, a material to be treated can be treated quickly at the time of dewaxing and the binder remaining inside the furnace body 11 can be discharged outside in a state of a liquid phase or a vapor phase after the dewaxing, after a clean atmosphere inside the tight box 1 is secured with priority.


Inventors:
NAKAMU EIJI
YAMAUCHI IPPEI
TAKEDA MASAO
Application Number:
JP30029695A
Publication Date:
June 06, 1997
Filing Date:
November 17, 1995
Export Citation:
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Assignee:
SHIMAZU MEKUTEMU KK
International Classes:
B22F3/10; F27B17/00; (IPC1-7): F27B17/00; B22F3/10
Attorney, Agent or Firm:
Kazuhiro Akazawa