Heating wire is the most common type of heating element, its role is to generate heat when the electricity is energized, the electrical energy into heat. The heating wire has a wide range of applications, a variety of commonly used electric heating equipment will be used as a heating element, so the heating wire in the medical, chemical, electronics, electrical appliances, metallurgical machinery, ceramic glass processing and other industries have applications. The following gives you an introduction to the production of heating wire and basic knowledge.
First, the production of heating wire
1, the first selection of 0.6MM heating wire to take a section of straightening, and then put on the drill, in the selection of 0.25MM heating wire and its cross-fixed, the use of electric drills, so that the .25MM heating wire wrapped around the ?0.6MM heating wire, winding a certain length.
2, the next step is to go under the Cain good silk, the 0.6MM heating wire out, 0.25 heating wire gently pull Shen.
3, select the 2.5MM winding rod, select the double filament and winding, be sure to align the double filament to start winding 8 laps "Measuring resistance is 1.34Ω".
4. Then it is the beginning of the silk.
Second, the basic knowledge of the heating wire
1, the heating wire to show the appropriate resistivity, in order to achieve the purpose of the electricity heating. If the resistivity is too large or too small, you need to be very short or very long, very thin or very thick wire, so the size of the power of the heater are difficult to manufacture and use; melting point to be relatively high, can not heat up on the melting; at higher temperatures, the chemical stability to be relatively high, can not be oxidized very quickly and the life expectancy is very short.
2, in a certain voltage, as the temperature rises, the resistance of the heating wire will increase, the power is somewhat reduced. When the heat generation and heat dissipation to reach a balance, the temperature is fixed.
3, the power of the heating wire, by the material, the thickness and length of the heating wire to determine. If the same material, the longer and thinner the heating wire, the higher the resistance, the lower the power.
4, the working temperature of the heating wire, in the design of electric heating products, also determined. For example, the electric blanket, the design working temperature is only a few tens of degrees, according to the area of the electric blanket, heat dissipation to select the power of the electric heating wire. If the use of the use of the change in the conditions of use, such as the electric blanket will be folded up and energized, electric blanket heat dissipation is not good, it is easy to cause a fire.
Third, the advantages and disadvantages of the heating wire
First of all, we need to know that the heating wire reaches the red hot state which is related to the organization of the electric heating wire. We first remove the hair dryer, intercept a section of the heating wire. With 8V?1A transformer, the resistance value of the heating wire or electric blanket heating wire can not be less than 8 ohms, otherwise the transformer is easy to burn. With a 12V?0.5A transformer, the resistance value of the heating wire can not be less than 12 ohms, otherwise the transformer is also easy to burn out. If you let the heating wire reach the red hot state, the redder the better, you should use 8V?1A transformer, which has more power than the 12V?0.5A transformer. This way we can also better test out the advantages and disadvantages of the heating wire.
Heat wire production is very simple, because the main preparation materials at a certain temperature on the wire on the good, but to pay attention to some of its basic knowledge, each heat wire has a certain resistance and power, we have to figure out how much power they are going to do the heat wire as well as the production of the heat wire materials need to make the conditions of the heat wire, or by the time we make the heat wire is not in line with the electrical appliances required by the heat wire, then is going to cause electrical damage or other accidents.
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