Electric iron is the current use made of heat effect, used to iron clothes. As the clothes of different material, cotton, Ma, silk, wool, such as the chemical fiber, iron, the temperature also varies. Generally speaking, cotton fabric can be relatively high temperature, followed by the hair, chemical fiber clothes are not high temperatures. How can we meet the various requirements of this » Now there is a market of iron can be regulated, not only out of various temperature, but also in a certain temperature, can maintain a constant temperature unchanged. Ironing clothes in such a time, as long as the thermostat knob in tune with the fabric corresponding to the temperature, can be assured of the boldly Ironing. 
      Electric iron is how the thermostat? Credit also attributable to the double metal sheets made of automatic switching.
      Two-metal is to have the same length and width of the copper and iron tablets closely together made the riveting. Heating, because of expansion than iron-copper, iron before the two-metal-bending side. The higher the temperature, bending in a markedly effective.
      At room temperature, the endpoint of the double-metal contact with the flexibility of the contacts on the copper contacts. When the first electric iron and power of access, the current through contact with the copper, double metal sheets, flow through electric wire, electric wire and heat transmission Irons fever at the bottom of the metal floor, people can use at the end of the fever Ironing boards of the clothing. With the increased power of time, the temperature rose to the floor temperature settings, and together the two-floor fixed metal bending down after heated, two-metal contact with the flexible top of the copper contacts on the separation , Then disconnect the circuit. Then the floor is no longer temperature rise, due to the floor and reduce heat; dual-metal deformation is gradually restored, when the temperature dropped to a certain value, flexibility and dual-metal contact with copper again, circuit Connected again, the floor and the temperature began to increase. In this way, when the temperature is higher than the required temperature at the circuit disconnect, when the temperature falls below the required temperature at the circuit access will be maintained at a certain temperature range.
      So, how to make electric iron have different temperature? » When you raise the thermostat button, then on the shift from top to bottom contact. Just double metal sheets can be slightly bending under the contact separation. At this time the temperature is lower floor, double metal can control the floor in the low temperature thermostat. When you put the thermostat button down, then down from top to bottom contact, the necessary two-metal bending under greater extent, the contacts can be separated. At this time the temperature is higher floor, double metal can control the floor in the high temperature thermostat. This will adapt to the fabric of the different temperature requirements.