What are the reasons for burrs, sharp edges or dirt on the edges after soldering with lead-free solder paste? Nowadays, many manufacturers are asking why they are using itSMTWelding can lead to this phenomenon. Why does this occur? How to solve this situation? What causes this situation to happen? How to avoid this incident? Now, JJY solder Paste Manufacturer will explain this situation to you:PCBThe formation of the board is blurry after soldering, and the edge of the solder paste is uneven......
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What are the key points of lead-free solder paste printing technology? Solder paste is made by evenly blending small round balls of tin alloy with half the volume of organic auxiliary materials. However, due to the significant difference in specific gravity between the two, it is inevitable that separation and sedimentation will occur after being stored for too long. Moreover, when the storage temperature is relatively high, the separation phenomenon will deteriorate even more, and oxidation is also more likely to occur, which will have adverse effects on printability, rheology and even solderability later on. So it can only be placed in the refrigerator.5-7℃......
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Can lead-free solder paste be replaced with halogen-free solder paste? Many people ask if this can be replaced. Halogen-free solder paste is a new concept of lead-free and halogen-free solder paste developed based on imported foreign technology, meeting customers' high-end production requirements for halogen-free solder paste. Now, let's have JJY solder Paste Manufacturer explain it to you: Under the premise of not being too sensitive to cost, in principle, halogen-free can be used as a substitute for lead-free. Halogen-free solder paste can be regarded as lead-free tin with higher environmental protection requirements......
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What is the testing method for lead-free solder paste? Printed circuit boards applying surface mount components(PCB)In assembly, to achieve high-quality spot welding, an elevated flow back temperature curve is one of the most important elements. The temperature curve is a parameter of the temperature-time concept added to the power circuit assembly. When plotting on a Cartesian plane, the flow back process at all given times meansPCBThe temperature at the previous particular point generates a curve, which is presented below by Jia......
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JJY solder Paste Manufacturer introduces environmentally friendly lead-free solder strips, which are used to meet all requirementsRoHSWave soldering or dip soldering of environmentally friendly electronic components and other workpieces as instructed. Brand:JIAJINYUAN/Composition of JJY Alloy:S96.5Ag3.0Cu0.5Length:326(mmWelding wire diameter:0.8(mmMelting point:227(℃Does it conform?RoHSYes (conforms to) weldable: copper parts, tin-plated copper parts, etc. Working temperature:260~300(℃Specification:50~20000(gEnvironmentally friendly lead-free tin......
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SHENZHEN JIAJINYUAN INDUSTRIAL TECHNOLOGY CO., LTD.
Tel：+86 0755 88366766
Phone：+86 18938660310
Email：sales@jjyhanxi.com
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