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There is not much equipment or setup for this process. All that is needed is the solder pot with its temperature control panel, the bath of molten solder, and the work holding device. Usually the work holding device is custom made for each respective workpiece for either manual or automated dipping.
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Some materials are easier to solder than others. Copper, silver, and gold are easy to solder. Iron and nickel are a little more difficult. Titanium, magnesium, cast irons, steels, ceramics, and graphites are hard to solder. However, if they are first plated they are more easily soldered. An
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The workpieces to be joined are treated with cleaning flux. Then the workpiece is mounted in the workholding device and immersed in the molten solder for 2 to 12 seconds. The workpiece is often agitated to aid the flow of the solder. The workpiece holder must allow an inclination of
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Dip soldering is used extensively in the electronics industry. However, they have a limited service use at elevated temperatures because of the low melting point of the filler metals. Soldered materials do not have much strength and are therefore not used for load-bearing.
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The molten bath can be any suitable filler metal, but the selection is usually confined to the lower melting point elements. The most common dip soldering operations use zinc-aluminum and tin-lead solders.
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This process is generally limited to all-metal work pieces, although other materials, such as circuit boards can also tolerate momentary contact with the hot molten solder without damage.
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Dip soldering is accomplished by submerging parts to be joined into a molten solder bath. Thus, all components surfaces are coated with filler metal.
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Engineering and Technology: Fifth Edition. Upper Saddle River, NJ: Pearson Education, 2006
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have low surface tension and high wetting capability. There are many types of solders, each used for different applications:
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Lead–silver is used for strength at higher-than-room temperature.
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Zinc–aluminium is used for aluminium and corrosion resistance
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so that the solder may run off to ensure a smooth finish.
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Solder pot metal: cast iron or steel, electrically heated.
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Cadmium–silver is used for strength at high temperatures
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Tin–silver and tin–bismuth are used for electronics.
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Dip soldering is the manual equivalent of automated
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