Preface:To copper and stainless steel dissimilar welding method from metal species is there are many kinds of welding methods, such as conventional silver welding, the low temperature soft soldering using low temperature (250 degrees WEWELDING88C coordination with the c - 88 F flux), instead of silver copper alloy welding welding method (46 wire, is employed to help solder paste welding), argon arc welding (suitable for copper and stainless steel welding of dissimilar Odin 204 s brass wire argon arc welding), and so on, various methods are possible, but there is the use of occasions, does not exist who replace who, so today we are mainly for silver welding,Of course, the main use of high mobility such as A203 silver alloy welding wire welding, but also need to cooperate with welding paste to welding.

Copper and stainless steel dissimilar welding low-temperature welding difficulty of copper radiator is very good, very poor heat dissipation of stainless steel and heat conduction and is poor, so the heat in the process of copper cooling heat transfer soon also quickly lead to heat up relatively slower stainless steel, and stainless steel because of poor thermal conductivity on temperature quickly, so that the end is the uniformity of the temperature of the copper and stainless steel is difficult to secure the flame welding is to pay attention to the uniformity of temperature, so the local operation difficulties at this place, let the two metal evenly best synchronization, we at the time of heating is the main heating copper from stainless steel.

The essence of welding: the essence of the choice of silver alloy welding wire, the fluidity of the welding wire is very good, the lower the melting point, the better the infiltration, the better the operation, this is related to the performance of the welding wire, this case reflects the excellent fluidity of high strength silver alloy welding wire Viodin A203 to welding, assisted with the welding paste.

Welding process: 1, surface treatment 2, uniform heating.3. When the temperature of the two metals is close to the melting temperature of the wire, use the wire to dip a little solder paste on the welding site.4, the welding paste in the heating flame under the action of uniform heating and paste into paste and then into water, see the stainless steel side has white wire is the best.5, the moment of the welding wire with flame auxiliary welding wire melting, but do not greedy burning, to control the temperature is not too high, too high oxidation.