Repair instructions for broken electric heating wire of electric soldering iron
There are two ways to deal with the fracture of the electric heating wire of an electric soldering iron. A simple repair method is to twist the fracture area. A fast and reliable method is to remove the electric heating wire from the cylinder, first remove the oxide near the fracture, and then tightly twist it. Treatment method for electric heating wire breakage of electric soldering iron
A common malfunction of electric soldering irons is the breakage of the heating wire.
1、 Simple repair method: Twist the broken part together, but after this connection, sparks often appear due to loose contacts, and after a short period of use, the contacts break again. Recommendation: How to use an electric soldering iron?
2、 Quick repair method: Take out the electric heating wire from the cylinder, first remove the oxide near the fracture, and then tightly twist it. After twisting, sprinkle a small amount of mixed powder of glass and electric porcelain around the joint (ground them in a 6:1 ratio). After installation, power on for a few minutes, and the powder will melt and adhere to the joint. By repairing in this way, there will be no sparks at the contacts and they are also more durable.
There is a fast and reliable repair method: take out the electric heating wire from the cylinder, first remove the oxide near the fracture, and then tightly twist it. After twisting, sprinkle a small amount of mixed powder of glass and electric porcelain around the joint (ground them 6:1). After installation, power on for a few minutes, and the powder will melt and adhere to the joint. By repairing in this way, there will be no sparks at the contacts and they are also more durable.
Installation requirements for commonly used components
(1) Installation of transistors: Before installation, it is necessary to distinguish the collector, base, and emitter. Places with dense components should be covered with plastic sleeves of different colors to prevent short circuits due to pole contact. For some high-power transistors, the heat sink should be fixed first, and then the high-power transistor should be inserted before welding.
(2) Installation of integrated circuits: When installing integrated circuits, it is necessary to clarify their direction and arrangement order of lead pins, and not insert them incorrectly. Nowadays, integrated circuit sockets are commonly used, and the sockets are soldered before installing the integrated block.
(3) Installation of transformers, electrolytic capacitors, and magnetic rods: For larger power transformers, spring washers and screws should be used for fixation; For small and medium-sized transformers, insert the fixed pins into the holes on the printed circuit board, and then press down the leads of the shielding layer before welding; For the installation of magnetic rods, first insert the plastic bracket into the bracket hole of the printed circuit board, then fix the bracket, and then insert the magnetic rod.
