Summary and Detailed Explanation of Common Sense for Storing Solder Paste? -- JJY Solder Paste Manufacturer

AboutSolder pasteSummary and Detailed Explanation of Preservation Common Sense? Generally speaking, solder paste materials are relatively expensive and not easy to preserve, along withSMTA new type of soldering material that has emerged as The Times require, solder paste, is a complex system composed of solder powder, flux and other additives. The editor of JJY Solder Paste Factory has experienced and summarized from multiple aspects. Now, let's introduce it to you:

The storage method of solder paste

1Solder paste should be stored in a sealed state in a cold cabinet with constant temperature and humidity(Please note that it is refrigerated, not quick-frozen. There are special freezers for solder paste available on the market, with a temperature of2℃～8℃Under certain conditions, it can be preserved6If the temperature is too high for a month, the alloy powder in the solder paste will not undergo a chemical reaction with the flux, reducing its viscosity and activity and affecting its performance. If the temperature is too low, the resin in the flux will crystallize, causing the shape of the solder paste to deteriorate.

2During the storage process, a more important point is to pay attention to maintaining a "constant temperature". If the solder paste is constantly subjected to different temperature changes from various environments within a short period of time, it will also cause changes in the performance of the flux in the solder paste, thereby affecting the soldering quality of the solder paste.

3Note that the shorter the time when the solder paste is opened, the better. After taking out the sufficient solder paste on the same day, the inner cover should be immediately closed. During the application process, do not take a little and use it a little. Frequent opening of the lid and prolonged contact of the solder paste with the air can easily cause oxidation of the solder paste.

4,When using it the next day, you should first use the newly opened solder paste and mix the unused solder paste from the previous day with the new solder paste1:2Stir and mix in proportion, and add and use in small amounts multiple times.

5When the solder paste is no longer in use, the remaining solder paste should be immediately recycled into an empty bottle. During the storage process, it is necessary to ensure that it is completely isolated from the air. Never put the remaining solder paste into the bottle of unused solder paste. Therefore, when taking solder paste, we should try to accurately estimate the amount of solder paste to be used and ensure that we take only as much as we need.

6The cable change exceeded the limit1For more than one hour, please scrape the solder paste off the steel plate and put it in the solder paste can to seal the lid before changing the wire.  

7Continuous printing of solder paste24After a few hours, due to air dust and other pollution, to ensure product quality, please follow the steps4The method of "" 

8To ensure the quality of printing, it is recommended that every4The openings on both sides of the steel plate should be wiped manually. 

9Please control the indoor temperature22-28℃HumidityRH30-60%For the best working environment. 

10To wipe the substrate with printing errors, it is recommended to use ethanol.IPAOr degreasing oil.

Want to know about solder pasteLead-free solder pasteFor any soldering issues such as solder paste, we welcome partners to consult Shenzhen JJY Industrial Technology Co., LTD. Let's learn and grow together! The solder wire, solder paste and solder rods of JJY brand are always waiting for partners to come and take them together.