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Soldering Introduction
Soldering is the process of joining two metal objects by melting a solder (a conductive material) in-between the two metal objects. Soldering is a process that is used to join metal objects without having to use traditional welding methods. Soldering has become increasingly popular as new technologies have been introduced, as it has broad applications across multiple industries.
Soldering is a relatively approachable process that only requires basic knowledge of welding and metal working principles. The materials used to solder are also relatively inexpensive. Most metals that can be welded can also be soldered, and the process is considered useful in joining metals including aluminum, steel, silver, gold, and other non-metallic materials including plastics and silicones.
Types of Soldering
There are two primary types of soldering processes; soft soldering and hard soldering. Soft soldering is a process that is used to join two metal objects by using a low temperature (typically between 160 and 350 degrees Celsius). This process is used to join materials and objects that are expected to come apart at some point. Items such as plumbing fixtures, jewelry and electrical contacts are often made using soft soldering.
Hard soldering is a much hotter process, typically between 500 and 900 degrees Celsius. Hard soldering is used for objects and materials that will not be taken apart and must remain securely connected. Hard soldering is often used to join pieces that have irregular shapes, as it creates a more secure bond. Tools and kitchen appliances often use the hard soldering process.
Soldering Process
The soldering process begins by roughening up the surfaces of the two objects being joined - this is to provide the solder material with a good surface to bond to. Oxidation inhibiting materials are then applied to the surface, often called flux. A solder wire is then melted over the surface of the surfaces. The heat source used to melt the solder is a gas torch, electric welding tool, or a soldering iron, depending on the situation.
Once the solder has been heated, it will then melt to create an electrical bridge between the two surfaces. The solder itself is a softer metal that is able to flow onto and around the surfaces, creating a tight seal. When the solder cools and solidifies, it creates a strong connection between the two objects.
Benefits of Soldering
Soldering has numerous benefits for use in industry. The process is significantly cheaper than traditional welding processes, and also takes far less time. Soldering is a process that can be done relatively quickly and efficiently. Most of the materials used in the process are relatively inexpensive, making soldering one of the most efficient processes available.
Additionally, soldering is a relatively safe process. The temperatures used in both hard and soft soldering are much lower than the temperatures used in welding. This means that soldering is a much more efficient process in terms of energy use. Solder is also easy to clean up, and there is no need to use any protective equipment while performing the process.
Conclusion
Soldering is a process that has numerous applications in industry. It is a process that is quite inexpensive and efficient, and is one of the safest welding techniques available. The process is simple to learn, and can be used on a wide variety of materials. As the popularity of the process continues to grow, the uses for soldering in industry are expected to expand.
