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How do you create effective reflow
Date:2016-08-31

With reflow technology matures and domestic EMS manufacturers to improve product quality, wave soldering equipment or promising. Currently, due to imperfect technology and process of reflow, selective reflow defects or a lot. In this paper, an example to describe the selective reflow equipment and technology from both the analysis and selective soldering. It describes the main equipment for forming machines, reflow soldering process introduces a selection of the process and, finally, an analysis of some selective soldering defects when welding several most prone. Reflow dedicated wind wheel design, wind speed stable; each zone independently using forced circulation, independent PID control, upper and lower independent heating, the furnace chamber temperature is accurate, uniform heat capacity; fast heating from room temperature to operating temperature ≤20MIN; imported high-quality high-temperature stable transport wind speed motor, reflow small vibration, low noise; furnace using lifting cylinder, the safety bar support (electric optional); chain,
Reflow continuously variable import power; special high-quality aluminum rail, reflow automated refueling system; English Windows operating system, powerful, easy to operate; or a predetermined routine monitoring function; such as: temperature detection, regulation and control, transmission speed and direction detection and control functions. Automatic detection function, ultra-low temperature reflow automatically sound and light alarm. Year after reflow must have a certain wavelength of sine wave or square wave signal magnetic track. In the magnetic scale on the head movement and reading magnetic Ke, and converted into an electrical signal input to the control circuit and eventually control the operation of AC servo motor.
Reflow advantage is simple to manufacture, easy installation, high stability, large measuring range, the measurement accuracy of up to 1 ~ 5um, placement accuracy is generally 0.02mm. This measurement is to go through tens of millions of times the best way to achieve reflow positioning accuracy is even higher than the magnetic scale of 1 to 2 orders of magnitude. Turret structure in motion, since the vacuum suction nozzle radial acceleration values limited by the maximum permissible speed is limited leaving the mount. Directly and quickly to achieve control and analysis functions. The system uses double-sided reflow temperature technology for reduced bending deformation of PCB board, high precision temperature control. Input channel switch feedback (signal acquisition), reflow switch output channel (Control SSR), serial output control inverter (control conveyor speed), analog output (control register, to achieve temperature control) analog input (thermocouple signal input).


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Tel:0755-27559288 Mobile:13923795982 Fax:0755-27447250 E-mail:1965235820@qq.com
Add:1st Floor, 106 Tanjong Avenue, Shenzhen Industrial Park, Pingshan District, Shenzhen
Wave soldering tin furnace jig fixture test fixture wave soldering tin furnace jig fixture test fixtureShenzhen City Xinhualong Technology