Until the 60's most all metal straightening was accomplished with the use of a pick hammer, a body file and a solder box containing the proper elements and tools. The metal used by auto manufactures before the 80's was of the cold roll variety with a gauge of 14 to 16 and was very malleable, making it rather soft, easy to shape and straighten with the use of the pick hammer and dolly. A sharp body file was then applied to cut the metal to a smooth finish and to bring out the high and low places.
Where the metal may be a little thin or rough to pick, the the body solder (leading) would be applied. This also is where the final finishing will take place with the body file plus more picking to assure a smooth flat surface.
Hot Air Soldering
Where soldering is needed the metal must be perfectly clean. All paint must be removed and all rust or other contaminates are removed with the use of a torch for heat and Mauriac acid. (Do not inhale the fumes). An electric drill, air drill or wire brush are also handy to remove contaminants.
The solder must be a 30/70 composition. The 30% tin is needed for tinning the metal and acts as a binding agent so the lead would adhere to the metal surface. Tinning the area where the solder was to be applied was accomplished with the use of a acetylene torch, soldering salts, a stick of solder and a rag.
The area to which the solder is to be added must be perfectly cleaned, solder salts applied then heated hot enough to melt the solder. while keeping the area hot, use a rag to wipe the solder over the entire area to be soldered. Now you are tinned and ready to add more solder to the tinned area as a filler.
When adding the solder, a wooden paddle is used to spread the solder over the surface. The surface of paddle must be dipped occasionally in heated bees wax to stop the solder from sticking to the paddle.
Soldering is only used when the straightening could not be accomplished with the pick, dolly, and file. Now, what do you think, are you ready to give it a try? You can do it, God did not make any dummies, "Its better to try and fail than to never try at all'. I invite your comments or questions. Please, I would love to hear from you. Lem
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Aoyue 852A++ Digital SMD Hot Air Rework Station Feature
- Built in vacuum Pickup tool
- 500 watt metal heater
- Microprocessor controlled.
- Long Life heat Element
- Built in air flow gauge for precise adjustment
Aoyue 852A++ Digital SMD Hot Air Rework Station Overview
This a NEW Two in One repairing station the combines a Hot Air Rework Gun with a Vacuum Pickup tool for removing components. This a very high quality unit from Aoyue who is a leading producer in Europe and Asia and is now introducting products to the US Market.Just screw a nozzle onto the hot air tool, place the nozzle over the QFP, SOP, PLCC or SOJ to be desoldered, apply hot air to melt the solder without ever touching the component or PC board, and gently lift the component from the board using the vacuum pickup. Soldering of the replacement SMD is just as easy.Maintains a constant set temperature when the set and the value is reached.All Digital display of temperature and pressure with touch control on the front panelBuilt in Air Flow gaugeUnique 15 minute stand-by auto sleep mode with recovery functionCompatible with many nozzle types from all manufacturers.There is an Auto cool-off process that leaves the blower on until the nozzle is cool, this prolongs life of the heating element and to ensure safety. ESD safe design.Package content:852A++ station with hot air gun, Air nozzles (1124,1130,1196,1197),G001 IC popper, Z002 Hot air gun holder, 939 Vacuum suction pen, Power cord.SAVE NOW on the special offers below!
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