What precautions should be taken during the use of solder paste in SMT assembly?

Solder pasteisSMTIt is a very important processing raw material in the processing, playing an indispensable auxiliary role in the surface mount soldering process, and inSMTDuring the surface mount technology (SMT) processing, the position for solder paste printing is relatively high. If there is an error in the solder paste printing, it is very likely that all subsequent processing steps will be unable to proceed normally. Then inSMTWhat are the precautions for the use of solder paste in the processing of contract manufacturing and material supply? Here, the solder paste manufacturer will give you a brief introduction:

Before processing, the soldering points need to be wiped clean without any residue. Then apply solder paste. After that, use a soldering iron to solder the points. Use tweezers to press the wire or lead wire onto the soldering point and gently press it with the tip to ensure that there is enough solder flowing to the soldering point. Then quickly remove it.

Only after the solder paste has cooled down can you release the tweezers and proceed to the next step. 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.

Iii.SMTThe operation of solder paste in surface mount technology (SMT) processing is very simple. In contrast, the storage of solder paste is actually more important. Let's take a look at it belowSMTThe methods for preserving solder paste in contract manufacturing and material supply processing plants.

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 that the shorter the opening time of the solder paste, 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.

Shenzhen JJY Industrial Technology Co., Ltd. mainly engages in the production and operation of:SMTSolder paste manufacturers of solder paste, syringe solder paste, lead-free solder wire, wave soldering bar, automatic soldering wire, etc.