Patent ID: 6676006
Filing Date: 2004-01-13
Classification: B23K

Abstract:
A flux supply device for supplying a mixed gas composed of a gas flux and a combustible gas to a brazing apparatus, said flux supply device comprising:a flux storage tank for storing a liquid flux; a gas blow-in pipe for blowing the combustible gas into the liquid flux stored in said flux storage tank; a liquid flux supply pipe for supplying the liquid flux into said flux storage tank, said liquid flux supply pipe having its lower end located above the lower end of said gas blow-in pipe; a liquid replenishing portion for holding the liquid flux, said liquid replenishing portion being located above said liquid flux supply pipe and having its lower end opened; a first automatically opened/closed valve connected to the lower end of said liquid replenishing portion; a second automatically opened/closed valve connected to the upper end of said liquid flux supply pipe; a liquid holding portion for holding the liquid flux, said liquid holding portion being connected between the lower end of said first automatically opened/closed valve and the upper end of said second automatically opened/closed valve; and a control portion for controlling said first automatically opened/closed valve and said second automatically opened/closed valve so that one automatically opens and closes and then the other automatically opens and closes, alternately and repeatedly, and so that the amount of the liquid flux that can be supplied from said liquid holding portion into said liquid flux supply pipe while said first automatically opened/closed valve and said second automatically opened/closed valve are opened and closed in a given time period is larger than the amount of the liquid flux consumed while the mixed gas is sent out from said flux storage tank in said given time period.