If you want to know which lead-free solder paste is more suitable for your electronic products, the easiest way is to use it. Give it a try. Not only can you know which lead-free solder paste is more suitable for use, but you can also discover your own technical deficiencies during the application process. So, how to determine if lead-free solder paste can be used? The solder paste manufacturer will explain it to you: If you find that the solder paste printing shows five defect phenomena such as bridging, peeling, insufficient adhesion, collapse, and blurring after printing, what are the troubleshooting steps......
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Lead no-clean solder paste is a new type of solder paste. This solder paste is a lead-free, no-cleaning, low-halogen solder paste and low-halogen solder paste. The design of the specific reflow furnace temperature curve process window ensures that the related lead-free brazing problems remain colorless. Applicable to the temperature curve of high-temperature solder paste; Meet the requirements of medium-speed printing for hand printing and machine printing. The excellent reflow process window makes it very good for soldering plates,It has a good combination with printing points of various sizes and also has excellent anti-irregularity......
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I. Special Phenomena of Lead-free Solder Paste Wave Soldering1,QFPThe deterioration of heated solder joints occurs in certain areas on the front of the circuit boardQFPAfter the lead-free solder paste is firmly re-soldered on the pins, when they re-enter the bottom surface for the secondary high heat of lead-free wave soldering, sometimes it is found that a few pins will experience the undesirable phenomenon of melting and peeling off (in fact, the situation will be even worse when the reverse side of the circuit board is re-soldered for the second time). Method: Completely eliminate any source of lead and avoid using bismuth-containing pin membranes or......
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Recently, there has been a public opinion online that "Lenovo laptops have gone black and crashed due to the use of low-temperature solder paste for desoldering." So, is it really unreliable to use low-temperature solder paste on laptops? Today, the solder paste manufacturer will show you the problems existing in the use of low-temperature solder paste in laptops:20From the 20th century until the beginning of this century, medium-temperature soldering with tin and lead as the main components has always been the mainstream of other types of soldering, among which the ratio of tin to lead is63:37Its melting point is183℃Show good......
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I. Reasons for short circuits in leaded solder paste soldering: The first thing to consider isPCBIt is necessary to determine whether there is any residual leakage on the board. Therefore, the first step is to check if there is any leakage when using solder with lead solder paste. AfterPCBAfter drilling and soldering the board, whether it is cleaned or not, if there is a leakage of electricity, it may be caused by several factors.1,PCBThe board is broken. It has already short-circuited itself. Regarding this,PCBThe pre-welding test can be conducted before the board is used.2It wasn't washed dry......
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SHENZHEN JIAJINYUAN INDUSTRIAL TECHNOLOGY CO., LTD.
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