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PCB repaired machines use skillful subtotal
PCB repaired machines use generally the skill
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Pedal skill |
The pedal must practice about the uniform speed, the line ball, the localization, movements and so on thrust augmentation, do take in and put away freely, dynamics can control at will |
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Hand skill |
The common left hand takes the wire feeder, the thumb and the ring finger clamp wire feeder board, the index finger and the middle finger fixed encircles first, the right hand takes the tool knife |
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Move board |
The palm of the hand pastes on the tabletop, depends on the finger curving strength to move the line board |
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Puts the wire |
When puts the line, downward presses first the wire feeder end of a thread, the line end the end thrust in the right side sealed end bottom end, after welds like this finished, the end of a thread cannot curl upwards. |
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Weld point position |
The spot must approach the abruption as far as possible the place |
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Cut wire |
About the finger fixed coil, upward will make an effort on the identical parallel line to pull in the future |
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Blows the paint |
Blows cleanly with the tool knife handle paint, the copper wire surface must shave, as far as possible keeps the position which the sealed end presses |
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Grind PCB |
With is suitable the line direction 1000 to 1200 sandpaper to grind PCB |
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Put glue water |
May use the raped drying glue water to fix the hanging line, if needs to control the good glue water the quantity, may use the AB glue water |
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Above two rows repaired |
Behind the identical place has two row of above to make up the line to make up again first the line, thus may avoid welds a time affecting another line |
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Turning |
When patching presses in advance with the foot through the sealed end the line position, changes to the parallel position to carry on the welding |
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Position thin narrow view |
Needs to hit slightly two sealed end spacings carries on the welding |
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Not continual crack |
Uses the logical circuit similar size the line to weld as far as possible, middle has the crack to be possible to use the line to be suitable the crack to carry on the welding |
General question processing
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Appears question |
Question reason |
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Does not strike a light |
The sealed end bottom surface unclean, the sealed end nearby two not smooth, the sealed end middle short circuit, the welding parameter are insufficient |
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Welds not reliably |
The welding voltage insufficient, the sealed end bottom surface clean clean, the sealed end not smooth, has not carried on in the identical place has welded many times |
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Explodes the line |
The parameter oversized, the sealed end and the line contact are not good | |
