The structure design and soldering principles of reflow soldering directly affect the quality of the output products,including the possible problems of virtual soldering,cold soldering, voids, Bridges, steles, tin beads and so on,as the equipment solution integrator in SMT industry,Jeenoce introduce the German brand reflow soldering equipment with modular design concept,which can flexibly customize the optimal welding process and temperature curve according to the characteristics of customer products to meet the high specifications and quality requirements of customer products.
Reflow soldering is the SMT patch process that heats the corresponding solder paste after the electronic components are processed by the patch machine and dispensing and coating equipment, and then "sticks together" the electronic components and PCB boards into finished products by melting the solder paste and then cooling in this process.
In brief, reflow welding is divided into four processes: preheating, constant temperature, welding and cooling. However, according to the characteristics of different products and welding requirements, the temperature, temperature zone and residence time of some processes will be increased or decreased.
Reflow soldering is a crucial process in the whole SMT patch processing process, which determines whether the circuit board can be changed from a "simple PCB board" to a PCB or chip product that meets customer standards and is put into use. It can be said that it covers almost all the manufacturing scenarios that need the circuit board industry.
Jeenoce's reflow soldering systems mainly serves the middle and high end electronics industry,including:
Automotive electronics field
Advanced driver assistance system (ADAS) module for intelligent driving,ESP electronic stability program module,new energy power and energy management battery management system BMS module,electric drive control module,intelligent cockpit system module for intelligent cockpit and vehicle-machine networking,Internet of vehicles (V2X) module,various control and sensor modules, headlight strip,etc.
Aerospace electronics field
The control computer module, sensor module,fuel and power control module of aircraft control system,inertial navigation and positioning system module and communication module of navigation and communication system,solar cell control module of energy and equipment management,cabin power supply module,environmental control module, safety monitoring module,etc.
Military electronics field
High-frequency radio frequency chip, military switch module, data connection equipment module, etc.,MEMS gyroscope module,military gps receiving module, phased array TR component module, electronic jamming module, and weapon and fire control system module of navigation and situation awareness system.
Medical and medical electronics field
Ultrasonic probe module, signal processing module, endoscope control module, CT/MRI control board module of diagnostic and imaging equipment, pressure sensing module, flow control module, integrated MOSFET module, point-to-control module of surgical equipment, etc.Laboratory and pharmaceutical gene sequencing instrument related modules and pharmaceutical automation in the temperature sensing module and PLC chip.
Industrial and communications field
PLC control module,sensor module,industrial robot control module,edge computing chip, reader module, etc.
In the field of communication,5G base station RF module,router,switch,Ka-band transceiver module of network transmission equipment,NB-LoT module of Internet of Things and edge computing equipment,DSRC/C-V2X dual-mode communication module, etc.
Consumer electronics field
The core components of intelligent terminal devices include Xiaolong, Kirin,Apple series and millimeter wave antenna array,as well as PPG chip,micro MCU,touch IC,micro motor driver chip integrated with some sensor circuit boards,and then smart home,Internet of Things and related power modules.
Classifications of reflow soldering
According to the classification of heating mode,reflow soldering can be divided into infrared reflow soldering, hot air reflow soldering, infrared hot air mixed reflow soldering, gas phase soldering, laser reflow soldering, hot gas reflow soldering, etc., and according to the classification of equipment structure, reflow soldering can be divided into tunnel reflow soldering, bench reflow soldering, vacuum reflow soldering, etc., other classification includes nitrogen reflow furnace, micro-channel reflow furnace, etc.
Adjustable transmission system
The circuit board to realize the whole welding process is placed on the transmission device through each temperature zone to achieve,but also through the transmission system to control the stay and movement of each temperature zone to achieve accurate control of welding and temperature zone,although the temperature control is the key to determine the success or failure of welding,but the transmission system is actually a key design to control the temperature.
The Jeenoce reflow soldering furnace can be customized according to the size and quantity of products to adjust the transmission track of the reflow soldering transmission system is bound to meet 90% of the circuit board automatic welding process.
Precisely controlled heating/cooling system
The heating system achieves the best effect by adjusting the fan frequency of each temperature zone independently,and the special rectifier plate can ensure that the air flow is evenly distributed on the surface of the PCB board to heat more fully,in addition, the best heat insulation measures are taken between the furnace and the outer wall to prevent heat dissipation.
For rapid cooling, Jeenoce's reflow soldering equipment is designed with a closed loop system of active water cooling to quickly switch to a lower temperature without stress and without additional components by simultaneously transporting cold air from the top to the bottom.
Temperature and time, transmission speed limit precise control of the three aspects of cooperation to draw the appropriate product requirements of the temperature curve to increase the product pass rate.
Waste recovery system
In the welding process will produce some unavoidable impurities,including solid,liquid, gaseous,how to deal with these wastes is the key factor affecting the length of equipment life,and according to the different temperature zone of the international North refluxing equipment design heating zone pyelysis and cooling zone filter unit condensation two mechanisms.
Pyrolysis in the heating zone refers to the process of pyrolysis of large molecules of hydrocarbons into small molecules at a high temperature of about 500 degrees. According to the test data of Dresden laboratory,the removal rate of particulate pollutants in this way≥97%,while the concentration of gaseous pollutants can also be reduced to 74ppm.
The condensation process of the filter unit in the cooling area is linked to the pyrolysis device,and the small molecules from the pyrolysis process are processed by this process. Moreover,in the reflow welding system with inert gases such as nitrogen,the condensation system can also recover nitrogen,and then after filtration and purification,it can be reused to save costs.
Simple and intuitive VICON control software
The software for Jeenoce's reflow soldering equipment comes from the customization of German engineers.The software interface is very simple,which not only enables operators to quickly and accurately control the production situation and control accuracy of each temperature zone,but also enables differentiated management through personnel login Settings.In addition,it also includes the functions of solution storage, offline management and remote management of different product processes.
Instead of choosing the brand,you can choose from specific application scenarios, process requirements and cost budget. High-specification industries with high standards, such as automotive standards,aerospace,medical and pharmaceutical industries,usually choose vacuum reflow soldering for welding.
However,the problems encountered in reality cannot be solved by one-way process,for example,in Tesla Super factory,a variety of welding methods will be combined,for consumer electronics products,hot air welding will be used,and then vacuum reflow soldering will be used to produce FSD automatic driving chips,so as to achieve multiple effects.
Jeenoce's reflow soldering system enables individual fan frequency adjustment for each temperature zone via special customized nozzles, realizing precise control.
Its special rectifier plate ensures uniform hot air distribution on the PCB board to achieve optimal heat conduction.
A rigorous heat insulation scheme helps the system match the optimal temperature curve with product parameters like size and material.
This highly product-adapted process ultimately produces excellent products.
Jeenoce's reflow soldering system can accurately adjust key parameters (number of temperature zones, residence time length) and modify the transmission system based on different needs.
These adjustments cover scenarios like matching temperature zone process length, temperature curve speed, and adapting to the number or size of products being produced simultaneously.
The system supports both simultaneous production of multiple products and processing of larger-sized products.
Its flexible welding module design provides customers with more options.
This flexibility ultimately delivers higher cost performance for customers.
The Jeenoce reflow soldering system maintains low energy consumption during non-working periods.
It keeps equipment active with the minimum energy required when not in production.
The system can directly resume production status when needed.
Compared with shutdown and restart, it consumes fewer resources over the entire production cycle.
This mode also makes the overall production cycle more efficient.
The Jeenoce reflow soldering equipment is equipped with a residue waste recovery system designed by German engineers.
This system maximizes the collection, treatment and secondary utilization of waste.
The equipment features very low carbon dioxide emissions and minimal nitrogen waste.
It also delivers an external effect of clean and simple internal furnace cavity.
Thanks to its powerful recycling system, maintaining the Jeenoce reflow soldering equipment’s basic cavity only requires regular replacement of the waste collection device.
Unlike similar products, the equipment’s transmission system is placed outside the furnace.
This external placement saves significant manpower and material resources.
It also exempts the transmission system from the impact of high temperature and residue.
As a result, the transmission system has a longer service life.
The Jeenoce system generates corresponding data files for each component in the welding process.
Scanning the barcode, transmission or directory on a component enables dynamic tracking of the entire welding process flow.
When issues arise, results can be compared with database files.
This comparison allows quick problem identification.
The process avoids disrupting ongoing production.
Jeenoce’s reflow soldering system targets the welding of large PCB circuit boards.
It is equipped with a specially added central support module.
This module prevents product deformation caused by uneven stress during welding (when the product is affected by heat).
Ultimately, it solves the stress tearing issue in the welding of large-sized products.
Jeenoce’s three-stage energy-saving mode is not fixed; it intelligently adjusts energy consumption in heating, insulation, and cooling links based on different production scenarios and process requirements.
This adjustment saves significant energy while ensuring the welding effect.
The reflow soldering system includes a "electric shutter door" module designed by German engineers (a well-known industry design).
This single module reduces nitrogen consumption by 20%.
Overall, the system achieves up to 60% energy saving, 40% nitrogen saving, and 50% cooling water saving.
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