Electric iron（7）The temperature adjustment system of the electric iron is an automatic switch made of bimetal. The bimetallic sheet is made of copper sheet and iron sheet with the same length and width. When heated, because the copper sheet expands more than the iron sheet, the bimetallic sheet bend Read More

Electric iron（6）The circuit of a thermostat electric iron is composed of heating elements, thermostats, indicator lights, power terminals and power plugs. After inserting the power plug into the mains socket, the 220V power supply is added to the two ends of the heating element through the power plu Read More

Electric iron（5）Technical characteristics of mica board: mica board can withstand high temperature of 600 ℃. The insulation resistance is greater than 100mω. The thickness is thin. Small size and high power. It can be designed into various shapes conveniently and easily according to needs, and the c Read More

Electric iron（4）PTC element refers to the thermistor with positive temperature coefficient, which is made of barium titanate as the main raw material, and adding trace rare earth elements, using semiconductor ceramic technology. The resistance-temperature characteristic of the PTC element, as the te Read More

Electric iron（3）Earlier irons were made of cast iron and had a bucket shape. Charcoal was burned in the bucket, so it was called "iron." Europeans have ironed their clothes since the 17th century. They use a heavy "flat-bottomed iron" to heat them in a fire or a hot metal plate and then iron their c Read More

Electric iron（2）The steam spray type electric iron is made by adding a spray system on the basis of the steam type electric iron, which has multiple functions of temperature adjustment, steam injection and spraying. The steam injection system is the same as that of a steam-type electric iron. When t Read More