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Title:
HIGH TEMPERATURE BENDING TEST FURNACE
Document Type and Number:
Japanese Patent JPH08320283
Kind Code:
A
Abstract:

PURPOSE: To provide a high temperature bending test furnace with high availability and low maintenance cost by providing a refractory furnace wall constructed in order of heat resisting brick and fire brick from an iron sheath side to the furnace inside, setting a cooling gas blowing hole for internal temperature control through the furnace wall, and providing an internal gas exhaust hole.

CONSTITUTION: A refractory furnace wall 2 constituting a high temperature bending test furnace has a two-layer structure in which a heat resisting brick 21 is constructed on the inside of an iron sheath 1, and a fire brick 22 on the inside. A heating element 3 is set so as to extend through the upper furnace wall and the lower surface wall. A cooling gas blowing hole for internal temperature control is set through the lower furnace wall. As the cooling gas blowing hole, a through-hole is provided on the fire refractory furnace wall 2 formed of the iron sheath 1, the heat resisting brick 21 and the fire brick 22 so that an optional gas can be blown from the outside through a blowing connecting pipe 9. As an internal gas exhaust hole 10, a through-hole is provided through the iron sheath 1 and the refractory furnace wall 2, and a discharge pipe 10a having a bore diameter substantially equal to the diameter of the through-hole is connected to the iron sheath 1, so that the through-hole of the refractory wall 2 and the discharge pipe 10a form concentric through-holes.


Inventors:
NISHIDA YOSHIO
YANARI HIDEO
KAIZU ICHIRO
OYAMADA YUTAKA
TAKAHASHI HITOSHI
Application Number:
JP12667195A
Publication Date:
December 03, 1996
Filing Date:
May 25, 1995
Export Citation:
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Assignee:
NIPPON STEEL CORP
International Classes:
G01N3/20; F27B17/02; (IPC1-7): G01N3/20; F27B17/02
Attorney, Agent or Firm:
Takashi Ishida (3 others)