Title:
DEVICE SUPPLIED TO USE IN CORROSIVE ATMOSPHERE
Document Type and Number:
Japanese Patent JP2017185539
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a device supplied to use in a corrosive atmosphere which reduces use of Ta that is an expensive rare metal and has superior economical efficiency to a conventional device made entirely from Ta, and whose corrosion resistance is not impaired.SOLUTION: A device has such a structure having a dissimilar metal weld joint in which, on the basis of corrosive characteristics of use environment, Ta is used only at a portion that needs Ta, and other portion is substituted with at least one kind selected from the group consisting of Nb, Zr, Ti, and Ti-Pd.SELECTED DRAWING: Figure 1
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Inventors:
IHARA KIYOSHI
FUKUHARA TOSHIHIKO
FUKUHARA TOSHIHIKO
Application Number:
JP2016087463A
Publication Date:
October 12, 2017
Filing Date:
April 07, 2016
Export Citation:
Assignee:
SPF:KK
International Classes:
B23K9/23; B23K9/00; B23K15/00; B23K20/12; F28D1/06; F28F21/08
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