How can SMT Assembly components be manually welded?

SMT Assembly is a form of packaging semiconductor devices,SMT Assembly involves a variety of different styles of parts, many of which have formed industry general standards, mainly some chip capacitors, resistors and so on; So how can SMT mount components be manually welded?

1. Next SMT manufacturer -Shenzhen Kingford Technology Co, Ltd. for you to introduce. 

• Clamp the SMT component with tweezers, place it in the center on the corresponding welding basin, and press and hold it with tweezers after alignment. 

• Dip a fine brush in flux or apply a small amount of flux to the pads at both ends with a welding pen.
  

• Add a little solder wire with a chisel-shaped (fan shovel) iron head with a diameter less than or equal to 0.5mm, and the solder wire should leave quickly when it touches the iron head, otherwise the solder will be added too much. 

• First use the soldering iron tip to heat one end of the pad for about 25, and withdraw the soldering iron. 

• Then heat the other end of the pad in the same way for about 2s and scatter the soldering iron.

Meaning: During the welding process, the components should always be kept close to the pad to avoid floating at one end of the components.

2.  the use of special tools horseshoe iron head welding

• Attach the component, align it and hold it down without moving it.

• Apply a small amount of flux to both ends of the pad with a fine brush flux or a soldering pen. 

• Give the horseshoe iron tip.

• Heat both ends of the pad at the same time with the horseshoe soldering iron head for about 2s, and withdraw the soldering iron. 

3. Quick welding with flat sheet iron joints 

• Place components and hold them down with tweezers after alignment. 

• Apply a small amount of flux to both ends of the pad with a fine brush flux or a soldering pen. 

• Tin the flat iron head. 

• Heat both ends of the pad on the side of the element for about 2s with the fan-shaped lattice iron head, and throw away the soldering iron.

1. Strength guarantee

• SMT workshop: with imported SMT Assembly machines, optical inspection equipment, can produce 4 million points per day. Each process is equipped with QC personnel, who can keep an eye on product quality. 

• DIP production line: there are two wave soldering, of which there are more than 10 old employees who have worked for more than three years. The workers have high proficiency and can weld all kinds of plug-in materials.

2. Quality assurance, cost-effective

•  High-end equipment can be attached to precision shaped parts, BGA, QFN, 0201 materials. Also can be template patch, loose material hand. 

•  Sample and size batch can be produced, proofing from 800 yuan, batch 0.008 yuan/point, no start-up fee.

3. Rich experience in SMT Assembly and welding of electronic products, stable delivery

• Accumulated service for thousands of electronic enterprises, involving many types of automotive equipment and industrial control motherboard SMT processing services, products are often exported to Europe and the United States, quality can be affirmed by new and old customers. 

• Punctual delivery, normal 3-5 days after complete materials, small batches can also be expedited on the same day.

4. Strong maintenance ability, perfect after-sales service

• Experienced maintenance engineers can repair all kinds of patch welding caused by bad products, to ensure the connectivity of each circuit board.

• 24-hour customer service staff responds at any time to solve your order problems as quickly as possible.