How is solder paste used in the surface mount technology (smt) processing in an SMT factory?

insmtDuring the surface mount technology (SMT) processing in the factory,Solder pasteIt is a very important part, locatedSMTThe top of the processing production line. Only when the solder paste is fine can it be ensured that there will be no major problems of various kinds in the subsequent surface mount processing and production. Below, the solder paste manufacturer will introduce to you the usage of solder paste in the production process.

I. Manual Welding:

1Before processing, the solder pads need to be wiped clean without any residue. Then apply solder paste. After that, use a soldering iron or hot air gun for soldering. Use tweezers to press the wires or pins onto the soldering point and gently press with the tip to ensure that there is enough solder flowing to the soldering point. Then quickly remove it.

2The tweezers can only be released and the next operation can be carried out after the solder paste has cooled down. During the process of adding solder paste, it is essential to ensure the cleanliness of the steel mesh. The amount of solder paste on the steel mesh should not exceed one centimeter, and the scraper and container should always be kept clean to facilitate operation.

Ii.smtIn the surface mount technology (SMT) processing of production plants, the operation of solder paste is very simple, mostly automated or semi-automated by machines. In contrast, the preservation of solder paste is actually more important. The following introduces the methods for preserving solder paste.

1Solder paste must be stored in the refrigerator, with the temperature controlled at2"度到" 可 以 翻 译 为 "degree to"10Between degrees, unopened solder paste can be kept for about six months. After opening, the solder paste only has24A lifespan of several hours.

2Solder paste should be stored in a shaded area. If it is placed in direct sunlight, it is very likely to deteriorate and become unusable.

3InSMTBefore using solder paste in processing, it is necessary to perform a warming operation on the solder paste, that is, to slowly restore the solder paste to the natural room temperature at room temperature. Moreover, this step cannot be carried out by heating.

4It should be noted thatsmtThe shorter the opening time of the solder paste from the manufacturer, the better. During use, do not take it all out. Cover the remaining part with the inner lid and put it back in the refrigerator.

JJY Solder Paste Factory produces a wide range of solder paste products, including lead-free solder paste, halogen-free solder paste, silver-containing lead solder paste, syringe solder paste, environmentally friendly solder wire, nickel-plated environmentally friendly solder wire, silver-containing environmentally friendly solder wire, lead-free solder bars, high-temperature solder bars, etc. We offer technical support. If you have any soldering needs or technical questions, please feel free to leave a message online to interact with us!