Soldering iron

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Soldering gun

Gas soldering iron

Benzinlötlampen und Lötkolben

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Electric soldering iron

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Soldering-PCB-b

Ersadur

Soldering iron is a hand tool used in soldering, which is a process to join two metals together by melting a filler metal, called solder, into the joint. The soldering iron provides the heat necessary for melting the solder. Soldering irons are commonly used in electronics for assembling and repairing electronic components, in jewelry making for joining precious metals, and in various crafts and DIY projects.

Types of Soldering Irons

There are several types of soldering irons, each designed for specific applications and varying in power, size, and temperature control:

• Fixed Temperature Soldering Iron: A basic model that operates at a predetermined temperature. It is suitable for beginners and simple soldering tasks.

• Variable Temperature Soldering Iron: Allows the user to adjust the temperature according to the specific requirements of the task. This type is preferred for more complex or temperature-sensitive soldering work.

• Soldering Station: Consists of a soldering iron attached to a station that controls the temperature and often includes additional features such as a stand, sponge for tip cleaning, and sometimes a vacuum pump for desoldering. Soldering stations are ideal for professional use in electronics repair and assembly.

• Cordless Soldering Iron: Powered by batteries or gas, cordless irons offer portability and are useful in situations where an electrical outlet is not available.

• Soldering Gun: Although not technically an iron, a soldering gun is a tool with a pistol-like grip and a trigger to activate the heat. It heats up and cools down quickly, making it suitable for intermittent use.

Components

A soldering iron typically consists of a heated metal tip and an insulated handle. The tip can be made of copper, but is often plated with iron to reduce erosion from molten solder. The temperature of the tip is controlled either by a thermostat built into the iron (in the case of variable temperature irons) or by the wattage of the iron (in fixed temperature models).

Usage

To use a soldering iron, the tip is heated to the appropriate temperature, and then applied to the joint where the two pieces of metal are to be connected. Solder is then applied to the joint. The heat of the iron melts the solder, allowing it to flow into the joint by capillary action. Once the solder cools and solidifies, it forms a strong electrical and mechanical connection.

Safety

When using a soldering iron, safety precautions should be taken to avoid burns, inhalation of fumes, and eye injury. A well-ventilated area is recommended, along with the use of safety glasses and gloves. It is also important to use a stand or holder for the iron when it is not in use to prevent accidents.

Maintenance

Proper maintenance of a soldering iron includes regular cleaning of the tip to remove oxidation and residue, and tinning the tip with solder to protect it from corrosion. The tip should be replaced when it becomes too eroded or damaged to function properly.

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