摘要:
A method for forming sets (10,12,14) of tri-metal material involving the use of cladding mills (16,18,20,22). When multiple sets (10,12,14) of tri-metal material are formed, the outside surfaces of each set (10,12,14) is prepared by oxidation to prevent each set from adhering to the set above or below. An alternative to oxidation is to provide a removable layer (32) on the outside surface of the tri-metal material. Alternatively bonding materials (36) may be used on the intermediate surfaces; such bonding materials (36) can be selected from a group consisting of tin, nickel, titanium, chromium, silver and zinc.
摘要:
A method for forming sets of tri-metal material involving the use of cladding mills. When multiple sets of tri-metal material are formed, the outside surfaces of each set is prepared by oxidation to prevent each set from adhering to the set above or below. An alternative to oxidation is to provide a removable layer on the outside surface of the tri-metal material. Alternatively bonding materials may be used on the intermediate surfaces; such bonding materials can be selected from a group consisting of tin, nickel, titanium, chromium, silver and zinc.
摘要:
A tri-metallic material (10) for use in the manufacture of printed circuit boards is described and the process for its manufacture is described. The tri-metallic material (10) is a sandwich wherein a copper layer (18,20) is essential the "bread" of the sandwich and an aluminum layer (12) is the filling between both slices of bread. A metallic bonding and/or barrier layer (30,32) is spread on the aluminum (12) and is selected for its highly non-corrosive properties as well as its bonding, and diffusion inhibiting capabilities.
摘要:
A tri-metallic material for use in the manufacture of printed circuit boards is described. and the process for its manufacture is described. The tri-metallic material is a sandwich wherein a copper layer is essential the "bread" of the sandwich and an aluminum layer is the filling between both slices of bread. A metallic bonding and/or barrier layer is spread on the aluminum and is selected for its highly non-corrosive properties as well as its bonding, and diffusion inhibiting capabilities.