| 摘要 |
PURPOSE:To improve the adhesive force and water resistance of a brazing alloy for ferrite by specifying the respective components of a Pb-Sn-Zn-Ge-Cu alloy and molding the same into the forms of a plate, a bar or a thread. CONSTITUTION:If a brazing alloy contg., by weight, 1-10% Sn, 0.5-5% Zn, 0.1-1.5% Ge, and 0.05-0.5% Cu, and consisting of the balance Pb is molded into the shape of a plate, a bar or thread by extrusion, rolling, wire drawing, etc., it can be adhered to any shape of adhering surfades by using a soldering iron. If the amt. of the Sn in the composition is too much, the m.p. lowers too low. If the amt. of the Zn is too much, the hardness increases. The Ge is a component for the purpose of increasing adhesive power. With the Cu below the lower limit, water resistance is not improved, and above the upper limit, it weakens the adhesive power. It is equally well to contain 0.2wt% one or both of Al and Sb in the Pb-Sn-Zn-Ge-Cu alloy. |
