Soldering iron does not heat up the inspection method
Available multimeter R × lkn block measurement of the two ends of the power plug, if the multimeter pointer does not move, indicating that there is a circuit-breaking fault.
First of all, check the plug itself whether the lead is disconnected phenomenon, if not, you can remove the gum wood handle, and then use the multimeter to measure the two leads of the iron heart, if the multimeter pointer is still not moving, that the iron heart is damaged, should be replaced with a branding iron.
35W endothermic soldering iron heart between the two leads of the resistance value of 1.Skfl or so, if the measured resistance value is normal, it shows that the iron heart is good, the failure occurs in the power supply lead and the plug itself, most of the fault for the lead disconnection.
Replacement of the soldering iron heart should be new with the specifications of the soldering iron heart inserted into the connecting rod, the lead is fixed in the fixing screws, and tighten the terminals, at the same time to note the confusion of the soldering iron heart lead to the excess part of the cut off, in order to prevent the two leads short-circuit.
Soldering iron: an electronic production and electrical maintenance tools, generally by the soldering iron head, soldering iron core, shell, wooden handle, power leads, plugs and other parts of the composition, the main purpose is to weld components and wires.
The working principle of the soldering iron: after connecting the power supply, through the soldering iron core resistance wire heat, passed to the iron head, by the iron head melting solder for work.
Soldering iron is not hot, the main reason may be the soldering iron head in the resistance wire burned off, this is the soldering iron in the wearing parts, change a soldering iron core can be. But also can not rule out the power cord, plug failure. So meet the soldering iron is not hot, to first use the multimeter to check the power plug, power cord, exclude and then check the soldering iron core.
What is the relationship between the power and temperature of the soldering iron?
The power of the soldering iron and the temperature of the soldering iron have a great relationship, but the large power is not necessarily high temperature. Small power soldering iron is also not necessarily low temperature, but the heat of high-power soldering iron must be large, and the speed of temperature return is also very fast.
Soldering iron is electronic production and electrical maintenance of the necessary tools, the main purpose is to weld components and wires, according to the mechanical structure can be divided into endothermic soldering iron and external hot soldering iron, according to the function can be divided into non-tin-absorbing soldering iron and tin-absorbing soldering iron, according to the use of different types of soldering irons is divided into high-power soldering irons and low-power soldering irons.
