How to solve the problem of uneven solder paste dispensing and wire drawing?

Solder pasteIt is a new type of welding material, along withSMTIt emerged as The Times required. It is a paste-like mixture composed of solder powder, flux, and other surfactants and thixotropic agents.PCBSurface resistance, capacitanceICSuch electronic components are mainly used forSMTWelding in the industry. Next, the solder paste manufacturer will introduce the solutions to everyone:

1Set the delamination delay. Due to the existence of a certain distance between the glue outlet of the glue nozzle and the glue valve, if the glue release delay is not set, it will result in some glue shortage points being unable to apply glue.

2Set the glue closing delay. When the glue head is closed, there is still a certain amount of glue between the glue valve and the glue outlet that has not been discharged. If the glue closing delay is not set, it will lead to the phenomenon of glue "trailing".

3Adjustment of wire drawing height. Due to the high viscosity of the solder paste, it is necessary to raise it a certain distance during the dispensing process to break the glue wire. When adjusting the automatic adjustment, the height of the wire drawing needs to be adjusted according to the situation.

4Increase the height setting. To prevent poor dispensing of the product caused by the collision of the dispensing needle, the lifting height needs to be set.

5Close the reservation in advance to complete the final trajectory. To prevent the accumulation of rubber in the final stage products, it is necessary to set the rubber closure in advance.

6Pull it up diagonally. Due to the high viscosity of the solder paste, directly performing the wire drawing action after closing the glue cannot achieve the effect of breaking the glue wire, or the shape of the drawn glue wire does not meet the requirements. Therefore, after closing the rubber head, perform the diagonal pulling and lifting action to prepare for the wire drawing.

The above content about solder paste is explained by Shenzhen JJY Solder Paste Manufacturer. If you want to know more about solder paste products, please follow and interact with us.