Attention to the general use of electric iron?
First, small power, internal heating type electric iron1, after the purchase, first check the performance: the electric heating core is broken; the internal electric wire and the power input line is connected. Then it is, whether flying thorn; power line meets the requirements, whether the breakage of the power plug is intact;Check the insulation between the power plug and the iron head by the high resistance gear of the meter or multimeter before power on; check the power supply plug with the multimeter resistance file; tighten the thread arm wire on the handle.2 、 electrify test: check whether the temperature rise is qualified.3, in the process of using a power socket must be connected in distribution box with security measures; the operator seat be paved with insulating sheet sufficient area; the power plug to plug the power, do not pull the power line; power line should be avoided hanging; use special spiral casing type iron frame. To prevent the loss caused by bad goods even after hot combustion; non percussion on the body, prevent damage to electric iron, resulting in safety hazards; long time disabled should promptly unplug the power plug or cut off the total power.4, regular regular performance and safety performance inspection, unqualified parts should be replaced in time, and even the electric iron scrap.Two 、 high power and external heating type electric ironIn addition to the above contents, it is forbidden to burn personnel and articles to prevent fire.Three, supplement:1, conditional units and individuals need to configure isolated transformers.2, please use battery electric iron when there are special requirements.There are many kinds of hand electric irons, and the difference is great. In short, the security content is nothing more than personal safety, tool security, product safety and environmental safety.Don't laugh at inappropriate.
The tin is melted on the iron head and a layer of tin is put on the end of the iron head. The soldering iron after hanging tin can be used for welding at any time.When soldering electric iron, it should be provided with soldering flux besides soldering solder and direct welding. Soldering flux, as the name suggests, is helpful for welding. It can clean the surface of welding material and remove impurities in tin, so as to improve the quality of welding. A commonly used flux rosin and solder paste (commonly known as natural resin, rosin solder oil) which is a corrosive very small. Solder bar (also known as solder wire) in with rosin, it is commonly known as rosin core solder strip. Solder paste is a kind of flux is very good, but its relatively strong corrosive, itself is not an insulator, it is not appropriate for the components of the welding, welding metal components are mostly used in large area, the use amount should not be too much, after completion of welding
Attention should be paid to the use of electric iron. Before use, the electric iron shall be checked whether the voltage is in line with the nominal voltage of the electric iron;Two, the point iron should be grounded;Three. The electric iron can not be knocked, disassembled and installed by heating the electric iron;Four, electric iron should be kept dry, should not be used in excessive humidity or rain environment;Five, when you remove the iron head, turn off the power supply;Six, after the power supply, the use of waste heat in the head of a layer of tin to protect the soldering iron head;Seven, when the black oxide layer when the iron head, available emery cloth wipe, and then electricity, and immediately on the tin;Eight, sponge used for collecting tin slag and solder ball, hand pinch just not suitable for water;Nine, welding done before "5S", after welding should also do "5S"". Setting of electric soldering iron temperatureFirst, the temperature is determined by the actual use, to solder a tin point of 4 seconds is the most appropriate. Usually observe the iron head, when the blue when the temperature is too high.Two, general in-line electronic material, the actual temperature of the iron head is set to (330~370 degrees); surface mount material (SMC) material, the actual temperature of the iron head is set to (300~320 degrees)Three. Special materials need special setting of soldering iron temperature. Microphone, buzzer, etc., with silver, tin wire, the temperature is generally between 270 degrees to 290 degrees.Four, welding large component feet, the temperature should not exceed 380 degrees, but can increase the power of the iron.
