Title:
FURNACE CORE TUBE
Document Type and Number:
Japanese Patent JP2019078519
Kind Code:
A
Abstract:
To provide a furnace core tube reduced in a risk that, upon assembling and maintenance, fragments generated by breakage are intruded into raw material as impurities since the confronted parts in tubular bodies each other are hard to break.SOLUTION: Provided is a furnace core tube in which tubular bodies are plurally continued and stretched from a first edge over a second edge. Then, in the adjacent tubular bodies, provided that the first edge side is defined as a first tubular body and the second edge side is defined as a second tubular body, in the confronted parts of the first tubular body and the second tubular body, the inside diameter of the second tubular body is larger than the inside diameter of the first tubular body.SELECTED DRAWING: Figure 1
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Inventors:
YONEDA TAKAHIRO
Application Number:
JP2017208287A
Publication Date:
May 23, 2019
Filing Date:
October 27, 2017
Export Citation:
Assignee:
KYOCERA CORP
International Classes:
F27B7/22
Domestic Patent References:
| JP2007187430A | 2007-07-26 | |||
| JPH0545061A | 1993-02-23 | |||
| JPH06221765A | 1994-08-12 | |||
| JPH0875366A | 1996-03-19 | |||
| JP2004003848A | 2004-01-08 | |||
| JP2014092354A | 2014-05-19 |