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Saturday 16 March 2013

How To Operate A Rework Station

By Joshua Lynn


A rework station is great for both professionals and hobbyists who are in need of a device to bake their boards without resorting to an oven-type heating device. It is lightweight, with only 100 to 200 millimeters in width and height and its body has a great anti-static design. Moreover, and perhaps one of the greatest advantages of having a rework station is its price because it is amazingly inexpensive. Most importantly, its features are a no brainer.

For starters, a rework station features a digital display that shows the air temperature and air flow rate. You do not have to wait for a while until the rework station heats up too, and you could manipulate its temp, which ranges between 100 and 480 degrees Celsius. Here are some of the tips on how to use it correctly:

1. Prepare your effects. Gather the things you would need such as soldering paste, stencil, ruler or blade for spreading out the paste, tweezers, magnifying glass and alligator handle. Using a tweezer, place the metal stencils over the LPKF circuit board. Once the stencils are in place, spread the solder paste thinly over the holes of the stencils using the blade or small ruler. Lift the stencils off the circuit board then mount the parts over the part where the paste has been spread.

2. Solder away. Turn on the rework station then set the temperature at about 340 to 350 degrees. put the airflow at intensity four or five, which is just enough to direct some air onto the parts but not too strong to propel them off the board. Secure the board onto the alligator hands, and then start soldering parts through the rework station nozzle. Make sure to hold the nozzle a couple of centimeters away from the board and move it over the components in a circular movement.

Rework stations are perfect for multiple applications such as the removal, reflow and repair of standard SMDs, welding thermoplastics, testing thermal IC stress, and shrink-wrapping wires and circuit boards with tubes or plastic. It could also be a great tool to include in your arsenal specially if you are planning to begin your very own repair shop.




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