solderThe history of soldering dates back to antiquity. As early as 3000 BC. Egyptians combined gold and silver when making jewellery. These were joined together using copper solder. And this method is still used today to join metals and alloys with different properties. Thus, soldering is a method that joins two metal parts together using a binder called solder. The result is an aesthetically pleasing, stable and durable joint. Soldering takes place at a temperature which is higher than the melting point of the solder (in order to plasticise the joint). However, the entire process takes place at a temperature that will not damage the structure of the joined parts.

Soldering courses

Perhaps you fancy expanding your hobby and learning how to use a soldering iron? Or maybe you need it professionally? Then come and join us. W ERGON Personnel Training Center we run soldering courses. Our instructors will show you how to use the materials and tools, and fixing things at home will no longer cause you headaches. You will learn how to use a soldering iron in a safe way and learn how to use specific materials and tools. In addition, you will learn:

  • types of soldering irons and how to use them
  • practically about soldering
  • soldering basics - theory
  • about soldering mistakes
  • how to repair wires (soldering and desoldering)
  • about electronics repair
  • OHS and fire protection

A bit of theory on soldering

soldering iron

If you are about to embark on the adventure of soldering, you should know a few facts about the process. The tool used for soldering is the soldering iron. It is one of the basic pieces of workshop equipment and is used in many jobs; both minor and advanced jobs where hand tools are not enough. The soldering iron consists of two parts: the flask (used as a handle) and the tip (in direct contact with the solder). When soldering, the metal parts are joined by the binder (solder). Physico-chemically, however, the soldering process (joining of metal parts) is based on two phenomena: diffusion and adhesion. The solder binder enters the space between the components and the particles enter the pores on the surface. The soldering process starts with cleaning the surface of the parts to be soldered. Then we heat up the parts and apply flux and solder to the edges of the parts we are joining. At the very end, we wait for solidification and for the solder to cool down.

When we consider the melting temperature of the binder, we distinguish between two basic types of soldering:

  • soft soldering
  • brazing

Types of soldering


Soft solderingBrazing
The process takes place at a temperature of less than 450 °CThe process takes place at temperatures above 450°C.
The soldering iron heats the material selectively, so the whole process is fastSometimes the temperatures are five times higher than 450°C - as in industrial soldering. More specialised tools are then needed.
No protective measures required (apart from a vapour extraction system)The use of specialised, expert tools is required.
It is often used in electronics (e.g. connecting parts on a printed circuit board), in sealing gutters, roofs and also in sheet metal work.It has applications in joining carbon, tungsten, nickel, molybdenum and chrome steels as well as gold, silver, copper or bronze.

Furthermore, the melting range of the alloy in soft soldering is approximately 180- 280° C. The basis of soft solder is tin and other metals that have a similar melting point (cadmium, bismuth, antimony). It can be used to join copper, brass, steel or zinc components. As the whole process does not take place at a relatively very high temperature, soft soldering is used not only by professionals, but also by amateurs. They use soldering irons in their households.

When it comes to brazing, when the temperature can reach almost 1,000°C, a soldering iron is not enough. We then use a soldering lamp or an acetylene-oxygen torch. Brazing is often a silver mixture that is capable of joining many metals.

Brazing is a well-known metalworking method with numerous advantages. The part where the joining process of these metals takes place looks very aesthetically pleasing and its strength is very high indeed. There is a whole range of solders to choose from, with a wide variety of properties. This technology is not only familiar, but also modern and can join almost all metals and alloys.

Welcome to our training courses

CSO logo with the words: training in the background".

Soldering courses at our Operator Training Centre consist of a practical part conducted in the form of a workshop, stationary and a theoretical part on line (on an electronic platform). Both courses are held at weekends, so they can be easily combined with studies or work. They are conducted in an accessible and very interesting manner. Our instructors are specialists with extensive experience in the field of soldering.

Whether you are just starting out or are already familiar with the basics of soldering, you can choose the training course that is right for you. We have a course for beginners and another higher level - for the advanced.

Feel free to contact us and we will provide you with all the necessary information. We provide market prices, which we always agree with you individually. We offer discounts for larger and organised groups. Our head office is in Warsaw, but we also have centres in other Polish cities: Krakow, Bielsko-Biala or Katowice. If it is a closed course, we will travel to practically any place.

We also encourage you to familiarise yourself with the wide range of courses that ERGON has on offer. Among other things, we offer introductory and periodic courses in occupational health and safety, courses in fire safety, first aid trainingas well as many other courses for which the following are required entitlements TDT or UDT (for example, training as a forklift operator or mast platform operator).