In the production process of the electronic manufacturing industry, the uncleaned residue on the pcb will indirectly affect its short-term and long-term functional reliability, residue will gradually harden and form metal halate and other corrosion with time, ensuring the cleanliness and cleaning timelessness of the pcb is a link that cannot be ignored in quality improvement.
▲ There are tin beads between the solder joints of each small board
01 Tin bead cleaning machine details - functions and characteristics
In order to meet the requirements of automatic cleaning after welding, Jingtuo launched a tin bead cleaning machine, the general standard configuration is composed of two modules: transmission and cleaning. By connecting and selecting the welding equipment programming device, each welding spot can be programmed in turn, and the cleaning module can complete the cleaning of each welding spot.
X/Y/Z axis movement, separate cleaning parameters
Tin bead cleaning machine: integrated with selective welding
Brush head diameter 10mm-30mm optional, flexible, to meet the cleaning needs of different scenarios
The large brush head has a wide coverage, can carry out a comprehensive cleaning work, easily reach and clean up a large area, accelerate the cleaning process, and its design can effectively prevent tin beads splash, protect the surrounding environment from pollution.
The small brush head focuses on high-precision cleaning, removing hard-to-reach stains and residues in subtle places, especially when cleaning small gaps in precision instruments, leaving no dead corners.
The combination of the two not only improves cleaning efficiency, but also ensures a high standard of cleanliness, helps the production process proceed smoothly, and ensures product quality and safety.
02 Selective wave soldering - the complete process from operation to cleaning
Selective wave welding is modular design, flexible configuration, can be freely expanded, connected with tin bead automatic cleaning machine as a cleaning module in the selection of welding, to achieve spray, preheating, welding, cleaning integration.
Spray module system
Used for flux spraying to prevent oxidation of liquid solder and heated metal in contact with oxygen in the air; Precision spray flux system with rosin spray detection function and rosin flow monitoring can be configured with two independent spray modules, spray width up to 2~8mm, programmable spot spray and line spray.
Preheating module system
After the PCB board is sprayed with flux, it will reach the preheating zone to heat and activate the flux. The preheating module is mainly equipped with the top hot air and the bottom infrared heater, and the power heating mode is also configured for the PTH complex process PCB. To ensure efficient, safe and uniform heating.
Welding module system
After entering the welding zone from the preheating zone, the machine will position the pcb and start welding. The welding module is driven by electromagnetic pump. It can be configured with double tin cylinder to meet the production demand. At the same time, it has nitrogen protection to ensure durable and reliable welding.
Tin bead cleaning module system
After the welding is completed, the cleaning module will clean the residual tin beads on the welding plate. The roller brush was used to clean the solder bead of PCB solder pad. Through software control, components are positioned and cleaning parameters are controlled. The cleaning parameters of each solder joint can be set independently to achieve point-by-point cleaning of each solder joint, and can be repeated cleaning, repeated positioning accuracy up to ±0.15mm.
03 Customer case: Welding quality display -- practical application and results
Selected welding spray, preheating, welding, cleaning modules work together to achieve a high-quality production process, in practical application cases, after welding products in appearance or performance, can meet customer expectations. Application scope is not limited to: military electronics, aerospace ship electronics, automotive electronics, digital products and other high welding requirements and complex process of multi-layer PCB through hole welding.
PCB cleanliness high PTH solder joint dialysis 100%
By introducing automatic cleaning technology for tin beads, we not only take into account the cleanliness of the production line, but also ensure the enhancement of welding quality and product reliability. Looking forward to the future, Jintuo will continue to uphold the spirit of innovation, constantly broaden the horizon, in-depth exploration of diversified application scenarios and emerging market opportunities, and is committed to transforming cutting-edge technology into an inexhaustible driving force for the vigorous development of the electronics manufacturing industry.
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