Everyone knows that a soldering tin is a tool that needs to be used to repair electrical appliances. Its function is to collect the solder that melts when the solder electronics are removed. We generally need to use the soldering tin when repairing and disassembling parts. Especially for some large-scale integrated circuits, the soldering device is very important. Let's take a look at the usage, main classification and working principle of the soldering tin.
　　 How to use the soldering tin
1. First press the suction piston down to the stuck position.
2. Heat the solder joint with a soldering iron to melt the solder.
3. While removing the soldering iron, quickly attach the soldering nozzle to the solder joint and press the suction button.
4, one can not clean, can be repeated many times.
　　 Main categories of suction tin
Common suction devices mainly include suction balls, manual suction devices, electric heating suction devices, anti-static suction devices, electric suction guns, and dual-purpose tin soldering irons.
Most of the suction tins are piston type. According to the wall material of the suction tube, they can be divided into plastic suction device and aluminum alloy suction device. The plastic suction device is light, workmanship is general, the price is cheap, and the long plastic suction device has strong suction force. The aluminum alloy suction device has a beautiful appearance, and the suction cylinder has good airtightness, and can generally be operated by one hand, which is more convenient.
According to whether it can be electrically heated, it can be divided into ordinary soldering device and electric heating soldering device. When used in common soldering device, it can be used together with electric soldering iron. The electric heating tin can be directly desoldered, and some electric heating soldering device also has a soldering iron tip. It can be used as a soldering iron for welding.
　　 How does the soldering tin work?
　　 1. Working principle of hot air type suction device
The hot air is used to melt the solder while the molten solder is removed using a special soldering device. The size and suction of the suction system are achieved by two air pumps. Both the air volume and the suction volume can be continuously adjusted. The air outlet pump is linked with the heating system to set the outlet temperature, the set temperature and the actual temperature liquid crystal display, and the suction pump can be turned on or off separately. The hot spot is used to melt the solder joint (solder) while the molten solder is removed by a special soldering device. The process of melting and soldering is carried out simultaneously, without touching the circuit board, and the various components on the circuit board are removed quickly and without loss. The temperature of the hot air, the wind speed is adjusted as needed, and the suction force of the suction tin is adjustable. Various types of tuyères and suction nozzles are available. Suitable for desoldering of various types of components.
　　 2. Working characteristics and principle of vacuum suction gun type of electric suction tin
Electric vacuum suction gun features: strong suction, continuous suction, and easy operation and high work efficiency. When working, the heater makes the temperature of the suction head higher than 350 °C. After the solder is melted, the trigger can be pulled, and the vacuum gun generates a negative air pressure to instantly suck the solder into the tin chamber. Therefore, the temperature and suction of the suction head are two important factors affecting the effect of the tin absorption.
The working principle of the electric vacuum suction gun, after the suction gun is connected to the power supply, it is preheated after 5-10 minutes. When the temperature of the suction head reaches the highest level, the soldering point is adhered to the soldering point to melt the solder, and at the same time The side of the inner hole of the tin head is attached to the pin, and the pin is gently pushed. When the pin is loose and the solder is fully melted, the trigger can be pulled by the trigger.
The above is the introduction of the method, main classification and working principle of the suction device introduced by Xiaobian. The suction device has two kinds of manual and electric. The simple suction device is manual, and most of them are plastic. The product, whose head is often exposed to high temperatures, is usually made of high temperature resistant plastic.
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