Leaded solder paste is made to help weld composition and mixture of alloy composition. Of the tin and lead is a major component in alloy composition, so is called "leaded solder paste. Have lead solder paste composition depends on the kind of solder paste, have lead solder paste composition of alloy have a lot of kinds, leaded solder paste alloy, tin and lead are the main ingredients in the low temperature leaded solder paste alloy main ingredients and bismuth. In addition to these, solder paste alloy metal elements will have a trace of impurities, such as stuff iron, zinc, copper, aluminum, silver, mercury, arsenic, etc.).

Leaded solder paste features:

1, leaded solder paste printing roll and fall tin, to as low as 0.4 mm spacing between the solder can also complete the fine print;

2, continuous leaded solder paste printing, its viscosity changes little, steel can be online operation life is long, more than 12 hours, still not dry, still keep good printing effect;

3, after only a few hours have lead solder paste printing still keep its original shape, basic no cave phenomenon, SMT components and less prone to offset;

4, leaded solder paste has good welding performance, can be in the wettability of the different parts of the show the appropriate;

5, leaded solder paste can be adapted to different grades of welding equipment requirements, without welding under the environment of nitrogen charging is complete, within wide reflow furnace temperature fan can still be good welding performance, with heat - insulation type or rising up type two kinds of furnace temperature setting method can be used;

6, leaded solder paste residue rarely after welding, the insulation resistance of color is shallow and has larger, not corrosion PCB, can achieve the requirement of the disposable;

7, leaded solder paste has better ICT test performance, won't produce mistakes;

8, leaded solder paste can be used for hole roller coating