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Title:
HEATER ELEMENT FOR VACUUM FURNACE, VACUUM FURNACE, AND METHOD OF UNIFORMIZING TEMPERATURE IN VACUUM FURNACE
Document Type and Number:
Japanese Patent JPH0451486
Kind Code:
A
Abstract:

PURPOSE: To provide possibility of installing while the density in arranging heater elements is selected optimally by using a heater element as ones to be placed in longitudinal orientation, wherein the heater element is such that at least two coupling parts are provided at one end in line in the longitudinal direction.

CONSTITUTION: Each one 10 of those of the heater elements coupled together in crank form which are oriented in the longitudinal direction, is made rod- shapedly from a non-metal heat emitting material such as carbon or Si carbide, and coupling parts 12 are formed at ends of this rod shape. At one end of the heater element 10, two such coupling parts 12 are located in line in the longitudinal direction. The number may be more than two, and this may be applied on both ends. One example of embodiment is such that each coupling part 12 is constructed in the form of a through hole so as to enable coupling with heater element 11-not restricted however to this form. The aside facing heater elements 11, on the other hand, are made of the same material as the heater elements 10, wherein the section area differs in the longitudinal direction.


Inventors:
NAKAMURA MASATOMO
NAKANISHI YOICHI
MATSUI KOJI
Application Number:
JP1990000160456
Publication Date:
February 19, 1992
Filing Date:
June 19, 1990
Export Citation:
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Assignee:
DAIDO STEEL CO LTD
International Classes:
H05B3/10; C21D1/773; F27D11/02; H05B3/62; (IPC1-7): C21D1/773; F27D11/02; H05B3/10; H05B3/62