Welding and brazing nichrome
Use solder POS 40, better solders, POS 50, POS 61 .The flux should be prepared in a ceramic mortar, are added successively, zinc chloride and glycerin, mix until a homogeneous mass. Soldering nichrome, Constantan, manganin, beryllium and aluminium bronze, is carried out at a temperature of 300 °C. Soldered ends are carefully cleaned with abrasive cloth and wipe with cotton wool soaked in 10% alcohol solution of copper chloride, flushout, ludyat and then solder
The advantage of welding is that even when operating from a strong heat welded contact is not broken. It is necessary to heat the weld red hot. At this place the forceps is put a grain of silver nitrate (silver nitrate), which melts when heated, and forms at the junction of the solid contact. Ø if the welding wire does not exceed 0.15−0.2 mm, then the ends are superposed upon each other (distance 15−20 mm), and they wound the thin copper wire Ø 0,1−0,15 mm. connected Then so the wire is heated with a gas burner. Copper when it starts to melt and firmly connects the ends of the nichrome wire.
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