The Solder And Flux Used In Induction Brazing Technology

ROCHO INDUCTION provides flexible induction coil to match induction heating systems to complete heating and brazing tasks. Most of the metal parts such as the coil body and the sprayer used on the sensor are pure copper, brass, stainless steel and hard alloy. There are two types of brazing methods, hard brazing and soft brazing. The solder for hard brazing is mainly copper solder, brass solder, silver copper solder and tin solder, and the temperature is higher than 500℃. The solder for soft soldering is mainly tin solder. Choosing the right solder and flux can achieve a perfect soldering effect.

The following parameter are the brazing components, melting points and applications of different brazing methods.

1.The Composition, Melting Point And Application Of Hard Brazing

Model	Main Chemical Composition (Mass fraction, %)				Melting Point ℃	Application Metal
	Ag	Cu	Zn	Cd
Silver wire LAg8	7~9	55	36~38		860	Fe, Cu
Silver wire LAg12	11~13	52	35~37		830	Fe, Cu
Silver wire LAg 15	14~16	49	23~29	8~12	770	Fe, Cu
Silver wire LAg 20	19~21	32	23~25	13~17	750	Fe, Cu
Silver wire LAg 25	24~26	43	19~25		780	Fe, Cu
Silver wire Lag44	43~45	32	23~25		730	Fe, Cu
Copper wire SCu	98				1070	Cu
Brass wire	41~43		56~59		845	Ni, Cu

2.The Composition, Melting Point And Application Of Soft Brazing

Model	Main Chemical Composition (Mass fraction, %)					Melting Point ℃	Application Metal
	Sn	Sb	Fe	Cu+As+Ni	Pb
Tin wire LPb98.5					98.5	320	Cu, Cu Alloys
Tin wire LSn40	40	2.7	0.08	0.16		223	Cu, Cu Alloys
Tin wire LSn50	50	3.3	0.09	0.18		200	Cu, Cu Alloys
Tin wire LSn60	60	3.2	0.10	0.20		185