Did you know that lead-free solder used in lead-free paste has become a reality?

Lead-free solder pasteIt can truly be achievedEnvironmental protection regulations stipulate that lead must not be removed and new harmful or toxic chemicals must not be added. Make sure The forgeability of lead-free solder and its stability after soldering, as well as the cost borne by users and many other issues, should be fully considered. Solder paste is a soldering aid. Firstly, it isolates air to prevent oxidation. Secondly, it increases capillary action, enhances wettability, and prevents false soldering. Solder paste: A white crystalline powder. Content99.0%,Acid value0.5mgKOH/g,mp112℃It is readily soluble in ethanol and isopropanol. Did you know that lead-free solder used in lead-free solder paste has become a reality? Nowadays, lead-free flux is also an indispensable part of survival.

In the electronics industry, solder paste can be regarded as one of the more expensive materials. Solder paste is mainly composed of metal materials such as aluminum alloy particles, flux paste, active agents, and viscosity surfactants. Since it is likely to be damaged during the production process, a lot of damage will consume the enterprise's costs. The solder paste currently in use is mainly environmentally friendly solder paste, which refers to solder paste that has had lead removed and is also known as lead-free solder paste.

Lead-free solder paste must truly meet environmental protection regulations. It is not allowed to remove lead and add new harmful or toxic chemicals. Make sure The forgeability of lead-free solder and its stability after soldering, as well as the cost borne by users and many other issues, should be fully considered.

The melting point of lead-free solder paste should be low and as close as possible63/37The carbide temperature of tin-aluminum alloy1830CIf the carbide temperature of the new product is only higher than1830CThere should be no major problems many times, but at present, there is no such lead-free solder that can be truly marketed and promoted and meets the needs of electric welding. In addition, before developing lead-free solders with lower carbide temperatures, the temperature difference between the melting intervals of lead-free solders should be reduced as much as possible, that is, the temperature range between the solid-phase line and the liquid-phase line should be minimized as much as possible, and the solid-phase line temperatureDo less1500CThe liquidus temperature depends on the actual application(Solder rods for wave soldering machines2650CThe following; Tin bar3750CThe following;SMTUse solder paste:2500CThe following is generally stipulated that the temperature of the reflow soldering furnace should be less than225~2300C).

Lead-free solder pasteIt should have excellent lubricity; Under normal circumstances, the duration for which solder remains above the liquid phase line during reflow soldering is30~90In seconds, the feet of the welded steel pipe are reached by the wave soldering machinepcbThe duration of contact between the substrate surface of the circuit board and the solder wave soldering is4After applying lead-free solder for about a second, it is necessary to ensure that the solder can exhibit excellent lubrication performance within the above-mentioned time period to guarantee high-quality welding results.

 The solder paste of Shenzhen JJY brand has gone through many years12A solder paste and wire manufacturer specializing in the annual research and development of solder paste, solder wire, solder wire, lead-free solder paste, leaded solder paste, solder rods, leaded solder paste, etc. Choose the solder paste manufacturer of JJY brand for solder paste.