SILVER BRAZING MATERIAL AND JOINING METHOD USING SAID SILVER BRAZING MATERIAL

Title:

SILVER BRAZING MATERIAL AND JOINING METHOD USING SAID SILVER BRAZING MATERIAL

Document Type and Number:

WIPO Patent Application WO/2019/207823

Kind Code:

A1

Abstract:

The present invention relates to a silver brazing material in which the essential constituent elements are silver, copper, zinc, manganese, nickel, and tin. The silver brazing material comprises 35 to 45 mass% of silver, 18 to 28 mass% of zinc, 2 to 6 mass% of manganese, 1.5 to 6 mass% of nickel, and 0.5 to 5 mass% of tin, with the balance being copper and unavoidable impurities. In addition, by establishing a prescribed relationship between the manganese content (CMn) and nickel content (CNi) within the indicated composition range, the silver brazing material can also have good properties with regard to processability and wettability. The silver brazing material according to the present invention provides a reduction in the melting point and a reduction in the temperature difference between the solidus temperature and liquidus temperature, while lowering the silver content.

Inventors:

KISHIMOTO TAKAOMI (JP)
TAKAHASHI MASAHIRO (JP)
TERUI TAKASHI (JP)
MATSU KOTARO (JP)

Application Number:

PCT/JP2018/039405

Publication Date:

October 31, 2019

Filing Date:

October 24, 2018

Export Citation:

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Assignee:

TANAKA PRECIOUS METAL IND (JP)
TOKYO BRAZE CO LTD (JP)

International Classes:

B23K35/30; B23K1/00; B23K1/19; C22C5/06; C22C5/08; C22C30/06

Foreign References:

JPS52126660A	1977-10-24
JPS4834051A	1973-05-15
CN1404957A	2003-03-26
JPH01313198A	1989-12-18
JP2001087889A	2001-04-03

Other References: