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MATHEMATICAL MODEL FOR CONTROLLING THE FORCE OF PRESSING THE TERMINAL TO THE WINDOW IN THE SOLDERING PROCESS

UDC 004.94

Sayitov Shavkatjon Sameddinovich

Lecturer of the Department of "Electronics and Instrumentation" of the Faculty of Computer Design Systems of the Fergana Polytechnic Institute

Ferghana Polytechnic Institute, Ferghana, Uzbekistan

Annotation. Speaking of the necessary devices for the soldering process, it is definitely possible to note as such a device the soldering device itself, better known as a soldering iron and along with this is most often a hand tool used during tinning and soldering to heat parts, flux, melt solder and make it into the contact point of soldered parts. The working part of the soldering iron can be noted the tip, which is heated either by flame, a vivid example of this is heating from a blowtorch, or by electric current.

Keywords: soldering iron, soldering, mathematical apparatus, mathematical modeling, pressing force.

Аннотация. Говоря же о необходимых устройствах для осуществления процесса пайки, однозначно можно отметить в качестве такого устройства непосредственно само паяльное устройство, более известное как паяльник и наряду с этим чаще всего являющееся ручным инструментом, применяющийся при лужении и пайке для нагрева деталей, флюса, расплавления припоя и внесении его в место контакта спаиваемых деталей. Рабочей частью паяльника можно отметить жало, которое нагревается либо пламенем, яркий тому пример нагрев от паяльной лампы, либо при помощи электрического тока.

Ключевые слова: паяльник, пайка, математический аппарат, математическое моделирование, сила нажатия.

The main large types of such a device include two large classes of soldering irons with periodic or constant heating. The first class includes hammer and end soldering irons, which are a massive working tip mounted on a long metal handle, the length of which ensures safe operation of the tool. To perform this type of work, these soldering irons are equipped with special shaped tips or shaped stings. Such soldering irons are heated mainly from external heat sources, in the person of which fire from gas or gasoline burners can mainly act. This type of soldering iron is the oldest and has been known since ancient times.

The next type of soldering iron – arc, was quite popular in the XIX century, which follows from its name. And also another consequence of the name of this type is the use of a method for heating it to create an electric arc, periodically excited between a carbon electrode placed between the soldering iron itself and the tip. For example, an arc soldering iron can have a tip mass of 1 kg and heat up to 500 degrees Celsius, at a voltage of 24 Volts for 3 minutes, with a power consumption of about 1.5—2 kW.

Soldering irons with constant heating are more modern. These also include electric soldering irons with a built-in electric heating element that operates from the mains, that is, directly, or through a step-down transformer, or from batteries.

The gas type of soldering irons also works constantly, thanks to the built-in gas burner, where the combustible gas is supplied from the built-in canister, with pre-liquefied gas. However, although much less often, gas can be supplied via a hose from an external source. To another type of soldering irons, it is possible to include soldering irons on liquid fuel, which still have the honor to be called liquid fuel. They are similar to gas, but heating is already carried out by the flame of burning liquid fuel, which is also known.

Another type of soldering irons with constant heating can be attributed to thermal air types of soldering irons, in such types, parts are heated, and the solder melts by blowing them with a jet of hot air, which resembles an industrial hair dryer, but unlike it, a thin high-temperature air jet is used in this case. And also, along with this type, it is possible to bring very logically, correctly, the type cited is infrared.

In it, as can also be seen from the name, heating is carried out by an infrared radiation source. A variety of such soldering irons are infrared laser soldering irons. And if these were only the main varieties, then it is worth paying attention to the types of various soldering irons, which include soldering stations, rod and most often common soldering irons, pulse soldering irons and finally induction soldering irons.