What is a hot bar soldering machine?

Introduction to hot bar soldering machine

Hot press is also called bonding machine. According to the different media of hot pressing, it can be divided into soldering, ACF bonding machine (opposite conductive tape), ACP (opposite conductive glue), TBF (hot melt adhesive film). It is applicable to the connection of FPC (flexible circuit board), HSC (Zebra paper), tab and LCD and PCB. As the pitch of PCB or FPC in consumer electronic products tends to be smaller, the traditional soldering process has been difficult to meet the requirements of extremely fine hot pressing, so the ACF process has been gradually applied by mobile phone designers.

Working principle of hot bar soldering

Pulse heating principle: due to the special design of the welding head surface, the resistance of the welding surface is very small, and the current will pass through the section with the smallest resistance. By constantly changing the voltage and adjusting the current level, the welding head can quickly heat up. The pulse current refers to the on and off frequency ratio of the current. The larger the pulse ratio, the larger the current output, and the faster the temperature rise of the welding joint.

Characteristics of hot bar soldering

1. Using pulse heating technology, the temperature control is accurate, and the temperature sampling frequency is 0.1s

2. Single working platform, rotary working platform, left and right mobile platform and other diversified working modes

3. Multi stage temperature rise control

4. Real time temperature curve display

5. Silicone Tape indexing mechanism

6. CCD vision system provides accurate alignment

7. Large capacity program pre storage

8. Touch operation interface, program password protection

Classification of hot bar soldering

Desktop rotary table pulse hot press, separated desktop pulse hot press, separated desktop double head pulse hot press, vertical rotary table pulse hot press

Application field of hot press

1. Mobile phone manufacturer

2. Touch screen manufacturer

3. Computer

4. Printer, etc.