The effect of solder paste temperature is different. Solder paste requires some temperature control in many aspects, so this requires everyone to understand the temperature at which the solder paste works well. The effect of solder paste temperature is different. Solder paste requires some temperature control in many aspects, so this requires everyone to understand the temperature at which the solder paste works well. Calcium Cyanamide,White Calcium Cyanamide,Granular Calcium Cyanamide,Calcium Cyanamide Fertilizer,Raw Materials Calcium Cyanamide Beilite Chemical Co., Ltd. , https://www.dicyandiamideblt.com
According to the specific situation, the preheating and heat preservation process can be omitted, and the temperature is directly raised to the peak temperature at a speed of 1-3 ° C / sec. Studies have shown that such a process specification can reduce defects such as holes and solder balls.
When the printed circuit board is thick and the assembly density is high, the preheating heating rate should be appropriately reduced to ensure an even temperature distribution as much as possible.
When using a lead-free solder paste (typically lead-free solder with a melting point of 217-220 ° C), the reflow soldering peak temperature should be increased accordingly, and nitrogen protection is recommended.
Lead-free solder paste is divided into high temperature (melting point 217-227), medium temperature (melting point 172), low temperature (melting point 138) solder paste. These three kinds of solder paste have different melting points due to different compositions. of
The products of the patch corresponding to the melting point are also different. We can choose the solder paste with different temperature melting points according to the melting point of the components of our products.
The lead-free solder paste and lead solder paste produced by the double Chile solder paste manufacturers can be blended according to the requirements of customers, which can meet the needs of customers in all aspects. More details on solder paste can be found at:
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Editor: (Hardware Business Network Information Center) http://news.chinawj.com.cn