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    What is Lead Free Solder? - Soldering Lead and What You Need to Know

    2021.07.27

    Lead-free solders have been increasing in use due to regulatory requirements plus the health and environmental benefits of avoiding lead-based electronic components. They are almost exclusively common today in consumer electronics.

    What is Lead Soldering - Soldering Lead and What You Need to Know

    For those of you who are studying electronics, a lead soldering iron or lead free solder. It is an indispensable device in the process of studying and working in the future. However, how to solder lead is 100% correct technique. Perhaps many people do not know even though they have studied the theory very carefully.

    But sometimes the road from theory to practice it is an extremely long distance. Therefore, to effectively weld beautiful welds. And its quality depends on many factors that make up the weld. The following article will detail how to use a lead soldering iron.
    Lead Free Solder

    Common types of lead soldering irons

    Lead free solder or soldering iron is one of the very popular items in the electrical, electronic, component manufacturing industries. To learn how to use a lead soldering iron, first we need to learn about the soldering iron device. There are 3 types of lead solder on the market today, specifically as follows:
    Thermal torch: It uses a spring wire to heat the torch to create a high heat flow.
    Pulsed soldering iron: Applying short circuit in between the two parts of the soldering iron tip, soldering lead to create a beautiful solder joint
    Gas welding torch: Using acetylene gas mixture (light soil) to heat. The contact part lies between 2 pieces of metal, until it melts and dissolves into each other.

    What is the usage of lead free solder or soldering?

    Lead free solder is a type of soldering irons we mentioned above. Specific usage is as follows
    To weld a good weld, you must have a quality soldering iron. To ensure this, you should buy a welding torch with a capacity of 40W to perform superior and best welding for the following reasons: 45xUdHPiFHQ7xbKh19G45saF1raB2ot5pag8p1Hnk4yrfXRJZskr8TMbFpVfC5tDk8eQQg63TqkW9gKhwagx6HePTaK2yXb when welding and no solder burn.

    How to choose soldering iron?

    It is said to choose a lead free solder that is easy to melt with a temperature of about 60¸ 80°C. On the Vietnamese market, we often find solder in the form of solid core fibers. The diameter of the solder wire is about 1mm. Covered with a layer of turpentine on the outside can do a lot of work when the turpentine layer. It is common as an eraser right in the lead melting process at the point to be soldered.

    With lead types that do not have turpentine coating characteristics. Fennel solder solder that melts at high temperature is usually light in color. And there is no metallic luster when viewed with the naked eye. Do not choose this type for soldering.

    How to choose turpentine?

    The turpentine has the effect of strengthening the detergent when the turpentine is coated. In lead free solder is not enough use. Cases where additional turpentine must be common outside are common, such as lead on the conductors. Lead the tip of new electric soldering irons before use. Wash (detergent) the place to be soldered so that the lead sticks easily.
    After welding, rosin will cover the surface of the weld with a thin layer to help isolate the weld from the surrounding environment (temperature, oxygen, humidity, etc.) When welding, a soldering iron is inserted into the solid turpentine. Then take some molten turpentine. Then cover the weld surface to prevent oxidation, so the weld is more durable.

    How to choose a soldering iron tip?

    You need to check the tip of the soldering iron before soldering. Lead free solder must be replaced immediately if deliberately common, when welding; it will not be guaranteed that the weld will also burn each weld. It is recommended to use new, rigorously tested noses with labels and full warranties. Soldering operations Right hand holds a soldering iron the left hand holds a soldering iron.

    Dip the tip of the soldering iron into the turpentine and then put the soldering iron and solder on the spot you need to solder for about 3 seconds and then lift it up. The soldering iron must not be inserted into the paper. Entering water will damage the soldering iron or cause an electric shock, resulting in life-threatening danger.
    Lead Free Solder 2021

    Process of attaching component

    In the process of attaching components and SMDs to the surface of PBC printed circuit boards, the most mentioned material here must be lead free solder. So how is solder paste common? How to choose a solder paste that is both cost-effective and delivers the desired output for the production process? Pros Technology will answer this question for you.
    Solder paste is a form of PBC solder that is mainly common in Reflow Soldering and Surface Bonding Technology (SMT). This material offers significant benefits and makes the manufacturing process simple and easy, and is common in a wide range of applications from the production of prototypes to high-volume production processes.

    What is a solder paste?

    Solder paste is a mixture consisting of granules mixed in a certain ratio with a specific flux suitable for each application and different needs of users. And as the name implies, this lead free solder is comes in the form of "cream", which makes it easier for the solder paste to adhere to the printed circuit board surface than other solder materials such as solder sticks or solder.
    A traditional solder paste will contain the main ingredients including: tin, lead. However, today, along with the development of technology as well as the need to protect the environment, solder paste is also composed of many other ingredients besides lead such as silver, copper, and of course between these materials. There is a difference in price, depending on the choice of the user.

    Final Words

    Many people do not know that the role of quality lead free solder is crucial in many electronic projects. That is why we always focus on delivery highest quality soldering.

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