초록 ▼

Lead alloy strip material (4, 6, 8) is roll bonded on one or both opposite face surfaces of a core strip material (2). The core material can be commercially pure titanium, austenitic stainless steel, low carbon steel, copper, aluminum, alloys thereof or other suitable metal that has sufficient ducti

Lead alloy strip material (4, 6, 8) is roll bonded on one or both opposite face surfaces of a core strip material (2). The core material can be commercially pure titanium, austenitic stainless steel, low carbon steel, copper, aluminum, alloys thereof or other suitable metal that has sufficient ductility and that can provide desired attributes of stiffness and corrosion resistance to the composite. The lead alloy material is strengthened by the addition of less than approximately 1% of calcium or antimony and the core material is softened by fully annealing it prior to bonding. The several strips are reduced in thickness, preferably in approximately the same proportion, by at least 40% in the bonding pass to create a solid phase bond among the strips. The bonded composite is then rolled to final gauge and, for selected applications, is corrugated and cut to form panels (20, 22, 24) and etched to form pockets (8b) for pasting of active materials such as lead oxide for battery plates.

대표청구항 ▼

[ What is claimed:] [1.] A method for making bi-polar battery plates particularly useful in lead/acid batteries comprising the steps oftaking first and second strips of lead alloy each having an original thickness and containing a minor amount of strengthening material and removing lubricant contami

[ What is claimed:] [1.] A method for making bi-polar battery plates particularly useful in lead/acid batteries comprising the steps oftaking first and second strips of lead alloy each having an original thickness and containing a minor amount of strengthening material and removing lubricant contaminants from the strips,taking a strip of core material having an original thickness selected from the group consisting of titanium, aluminum, copper, stainless steel, low carbon steel and alloys thereof said core material substantially free of a coating of lead or lead alloy thereon, fully annealing the strip of core material and mechanically roughening the surface of the annealed strip of core material,sandwiching the strip of core material with the first and second strips of lead alloy and directing the sandwiched strips between a pair of rolls of a bonding mill, andapplying sufficient pressure on the rolls to reduce the thickness of the strips by at least 40% of the original total thickness of the individual strips creating a bonded composite strip.