Molybdenum foil manufacturing method for use in current supply device for electrical lamp, involves coating surface of molybdenum foil with ruthenium containing material before blasting, where coating is performed using sputtering technique

摘要

#CMT# #/CMT# The method involves roughening a portion of a surface (21a) of a molybdenum foil (21) by blasting using a blasting agent that includes aluminum oxide, where the portion of the surface is connected with electrodes. The surface of the molybdenum foil is coated with a ruthenium containing material before the blasting, where the coating is performed using sputtering technique. The ruthenium coating is formed on the molybdenum foil with a thickness of 75 milli meters, where the molybdenum foil is coated with single-side or two-sides. #CMT# : #/CMT# Independent claims are also included for the following: (1) a method for connecting a molybdenum foil with electrodes (2) a molybdenum foil comprising a surface roughened by blasting. #CMT#USE : #/CMT# Method for manufacturing a molybdenum foil for use in a current supply device for an electrical lamp (all claimed). #CMT#ADVANTAGE : #/CMT# The surface of the molybdenum foil is coated with the ruthenium containing material before the blasting, thus reducing of corrosion in the region of connection between the molybdenum foil and the electrodes and avoiding tear in the molybdenum foil, and hence increasing manufacturing safety and operational reliability, while increasing lifespan of the molybdenum foil and the lamp. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a schematic partially sectional view of a molybdenum foil for an electrical lamp. B : Molybdenum foil's width D : Molybdenum foil's thickness L : Molybdenum foil's length 21 : Molybdenum foil 21a : Molybdenum foil's surface.