Method of joining metallic members, and joined metallic members
First Claim
1. A method of joining a pair of metallic members together, comprising the steps of:
- preparing said pair of metallic members in coated form, wherein one of the metallic members is coated with a first undercoat composed of tin and zinc and the other of the metallic members is coated with a second undercoat composed of tin and zinc;
contacting the metallic members with each other either through a flux or in a reducing atmosphere, while heating the metallic members to melt at least one of the first undercoat and the second undercoat; and
solidifying the molten undercoat to join the metallic members, wherein the ratio of zinc in the first undercoat is represented by x (% by weight), the ratio of zinc in the second undercoat is represented by y (% by weight), and the ratio, x, and the ratio, y, are values such as satisfy the following formulas;
2 Assignments
0 Petitions
Accused Products
Abstract
Disclosed is a method of joining metallic members together. The metallic members are coated with an undercoat composed of an alloy of tin and zinc and contacted with each other through a mixture containing a solder comprising tin and zinc and a flux, while heating the metallic members to melt the solder. Then the molten solder is solidified to join the metallic members. Here, the ratio of zinc in the undercoat is represented by x (% by weight), the ratio of zinc in the solder is represented by y (% by weight), and the ratio, x, and the ratio, y, are values within an area enclosed by the line A or B in FIG. 1, which satisfies the formulas: 1≦x≦20, 3≦y≦13 and 3≦(x+y)/2≦13, or formulas: 0.1≦x≦25, 2≦y≦15 and 2≦(x+y)/2≦15.
48 Citations
25 Claims
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1. A method of joining a pair of metallic members together, comprising the steps of:
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preparing said pair of metallic members in coated form, wherein one of the metallic members is coated with a first undercoat composed of tin and zinc and the other of the metallic members is coated with a second undercoat composed of tin and zinc;
contacting the metallic members with each other either through a flux or in a reducing atmosphere, while heating the metallic members to melt at least one of the first undercoat and the second undercoat; and
solidifying the molten undercoat to join the metallic members, wherein the ratio of zinc in the first undercoat is represented by x (% by weight), the ratio of zinc in the second undercoat is represented by y (% by weight), and the ratio, x, and the ratio, y, are values such as satisfy the following formulas;
- View Dependent Claims (2, 3, 4, 5, 6)
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7. A method of joining a plurality of metallic members together, comprising the steps of:
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coating said plurality of metallic members with an undercoat composed of an alloy of tin and zinc;
contacting the metallic members with each other through a mixture containing a solder comprising tin and zinc and a flux, while heating the metallic members to melt the solder; and
solidifying the molten solder to join the metallic members, wherein the ratio of zinc in the undercoat is represented by x (% by weight), the ratio of zinc in the solder is represented by y (% by weight), and the ratio, x, and the ratio, y, are values such as satisfy the following formulas - View Dependent Claims (8, 9, 10, 11, 12, 13, 14)
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15. A method of joining metallic members together, comprising the steps of:
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coating said plurality of metallic members with an undercoat composed of tin and zinc;
contacting the metallic members with each other through a mixture containing a solder comprising tin and zinc and a flux, while heating the metallic members to remove the flux and melt the solder; and
solidifying the molten solder to join the metallic members, wherein the ratio of zinc in the undercoat is represented by x (% by weight), the ratio of zinc in the solder is represented by y (% by weight), and the ratio, x, and the ratio, y, are values such as satisfy the following formulas - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23)
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24. A method of joining a pair of metallic members together, comprising the steps of:
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coating one of the metallic members with a first undercoat composed of tin and zinc;
coating the other of the metallic members with a second undercoat composed of tin and zinc;
contacting the metallic members with each other either through a flux or in a reducing atmosphere, while heating the metallic members to melt at least one of the first undercoat and the second undercoat; and
solidifying the molten undercoat to join the metallic members, wherein the ratio of zinc in the first undercoat is represented by x (% by weight), the ratio of zinc in the second undercoat is represented by y (% by weight), and the ratio, x, and the ratio, y, are values such as satisfy the following formulas;
- View Dependent Claims (25)
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Specification