Is lead-free solder wire really lead-free? What are its standards,Generally, if we classify solder wires according to the metal alloy materials, they can be divided into tin-lead alloy solder wires, pure tin solder wires, tin-copper alloy solder wires, tin-silver-copper alloy solder wires, tin-bismuth alloy solder wires, tin-nickel alloy solder wires and solder wires made of special tin-containing alloy materials. Therefore, there are distinctions when making judgments. The surface of lead-containing solder appears bright white. Lead-free solder is light yellow. By hand......
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How to choose low, medium and high lead-free solder paste? Nowadays, many solder paste manufacturers choose from. In the soldering industry, there are certain differences in solder paste formulas, production processes, and types. Among them, lead-free solder pastes are roughly divided into low-temperature solder pastes, medium-temperature solder pastes, and high-temperature solder pastes. So many people will screen these several types. Each one has different process conditions. So where are the specific characteristics and differences? The editor of JJY summarizes them for you as follows: Low-temperature solder paste:......
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How to stir lead-free solder paste correctly? Many people (or the industry generally believes) believe that solder paste stirring is to evenly mix the solder paste and solder powder in the solder paste. In fact, the stirring of solder paste is to obtain the appropriate printing viscosity,We know that due to its certain thixotropy, the actual viscosity of solder paste during the printing process is different from that in its static state,The best printing effect of solder paste is achieved within a certain range of viscosities,If the solder paste is printed directly without stirring......
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Can lead-free solder paste still be used after its expiration date? What should I do if the solder paste has expired? Many people would ask such a question: The shelf life of solder paste is generally6Can solder paste still be used after its expiration date in a month? What impact will it have on the product if used? How long after the expiration date can solder paste be used at most? And in the case of most companies, how to put it? It depends on the company's requirements. Some companies strictly follow strict control methods, and those that have expired will be scrapped and disposed of. The male......
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What are the advantages of silver-containing lead-free solder paste? Nowadays, society is increasingly inclined towards environmental protection, and it is also clear that the price of silver in society is relatively higher. Then some people ask, given the high price of silver, what is the purpose of adding it to lead-free solder paste? Now, let's have the editor of JJY Solder Paste Factory explain it to you:1Lead-free solder paste containing silver has better electrical conductivity. Silver has the best electrical conductivity among metals. Adding silver to lead-free solder paste can increase the solder paste......
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