The heating principle of the heating wire, what kind of material is the heating wire

The heating principle of the heating wire is that it can withstand high temperature heat.

The large ones are specially used to generate heat. However, the main function of the heating wire is to generate heat, and the main function of the resistance wire is not to generate heat.

Electric heating wire, iron, chromium, aluminum, nickel-chromium electric heating alloy its oxidation resistance.

The performance is generally strong, but because the furnace contains a variety of gases, such as air, carbon atmosphere, sulfur atmosphere, hydrogen, nitrogen atmosphere, etc., these gases have a certain impact on the components under high temperature use, although all kinds of electric alloys have been treated with oxidation resistance before leaving the factory, but in the transportation, winding, installation and other links will cause damage to the components to a certain extent.

In order to reduce the service life, in order to prolong the service life, the customer is required to carry out pre-oxidation treatment before use, and the method is to pass the installed electric heating alloy elements in dry air.

Electrically heated to a temperature lower than the maximum allowable use temperature of the alloy of 100-200 degrees, kept warm for 5-10 hours, and then slowly cooled with the furnace.

The heater with the heating wire heating element as the heating material is mainly the more common and more traditional heater on the market. Its heating element is an electric heating wire, which uses a fan to blow out the heat generated by the heating wire. And then there are the new products on the market right now:

Resembling an electric fan, it is heated by a heating wire wound around a ceramic base to generate heat, and the reflective surface is used to diffuse heat energy into the room. Like an electric fan, this heater can automatically rotate the angle to heat the entire room, making it suitable for small rooms of less than 8 square meters. **The product also has the functions of ultrasonic humidification, release of oxygen-carrying negative ions, and wide spectrum.

The disadvantages are that the temperature drops quickly after the shutdown, the heating range is small, and oxygen is consumed, and the heating wire is easy to break after long-term use. Since the heating wire itself is relatively cheap, it will not be overburdened to repair the wire in the event of a wire breakage. Generally, the power consumption is around 800 1000W.

Quartz tube heating element.

This kind of product is mainly composed of sealed electric heating elements, parabolic or arc reflectors, protective strips, power adjustment switches, etc. It is made of quartz radiant tube as the electric heating element, the use of far-infrared heating energy-saving technology, so that the far-infrared rays emitted by the far-infrared radiation elements are absorbed by the object, directly into heat energy to achieve the purpose of heating, and at the same time, the far-infrared rays can have a physiotherapy effect on the human body. The heater is equipped with 2 4 quartz tubes, which are partially or fully put into operation by using a power switch.

The quartz tube is composed of an electric heating wire and a quartz glass tube. Quartz tube heater is characterized by fast heating, but the heating range is small, easy to produce open flames, and consumes oxygen. Halogen tube heating element.

The halogen tube is a sealed light-emitting heating tube, which is filled with inert gas of halogen elements and has tungsten filament in the middle. Its heat transfer mode is heat radiation, relying on luminous heat dissipation, and the tungsten wire in the middle is divided into white and black (because the cost of white tungsten wire is much higher than that of black tungsten wire, it is not popular in the market). Halogen tubes have the advantages of high thermal efficiency, non-oxidation when heated, and long service life, and some models also have additional functions such as timing, rotation, and humidification.

Halogen tube heater is heat dissipated by luminescence, generally using 2 3 halogen tubes as the heating source, the power consumption is about 900 1200W, which is more suitable for a room with an area of about 12 square meters. Now some of the more advanced products have the functions of automatic power-off and automatic shaking head when falling, and the design is simple and practical. Metal tube heating element.

This type of product looks like an electric fan, just like the heating wire heater mentioned earlier. A metal tube is used to generate heat, and a reflective surface is used to diffuse heat energy into the room. It has an anti-fall switch, automatic shaking head, manual adjustment of the pitch angle, a large heating range, and the surface protective cover will not cause burns to the human body.

This design avoids the drawbacks that the heating wire of the heating wire heater is easy to break and the halogen tube in the halogen tube heater is easy to be lost, but like the heating wire heater, the disadvantage is that the temperature drops quickly after the shutdown and must continue to work. The power is around 800 1000W.

Are you satisfied with the above?

Converts electrical energy into thermal energy.

The heating wire materials are: iron-chromium-aluminum and nickel-chromium electric heating alloys. The main advantages and disadvantages of iron-chromium-aluminum alloy series:

Advantages: Iron-chromium-aluminum electric heating alloy has a high service temperature, the highest use temperature can reach 1400 degrees, long service life, high surface load, good oxidation resistance, high resistivity, cheap and so on. Cons:

The main reason is that the high temperature strength is low, and its plasticity increases with the increase of the use temperature, and the components are easy to deform and not easy to bend and repair.

The main advantages and disadvantages of nickel-chromium electric heating alloy series are as follows: high temperature strength is higher than that of iron-chromium-aluminum, it is not easy to deform under high temperature use, its structure is not easy to change, its plasticity is good, it is easy to repair, its emissivity is high, it is non-magnetic, it has strong corrosion resistance, and it has a long service life. Cons:

Due to the use of scarce nickel metal materials, this series of products** is several times higher than iron-chromium-aluminum, and the use temperature is lower than that of iron-chromium-aluminum.

Advantages and disadvantages of heating wires:

First of all, it is necessary to know that the heating wire reaches the red hot state, which is related to the organization of the heating wire. First, remove the hair dryer and cut off a section of the heating wire. With an 8V 1A transformer, the resistance value of the heating wire or electric blanket should not be less than 8 ohms, otherwise the transformer will be easy to burn.

With a 12V transformer, the resistance value of the heating wire should not be less than 24 ohms, otherwise the transformer is also easy to burn out.

If you let the heating wire reach a red-hot state, the redder the better, you should use an 8V 1A transformer, which has more power than a 12V transformer. In this way, it is also better to test the advantages and disadvantages of the heating wire.

The above content reference: Encyclopedia - Heating Wire.

The heating principle of the heating wire is that when the current passes through the heating wire, the electric energy is converted into heat energy, so that the heating wire is heated.

When an electric current is passed through the heating wire, the electrical energy is converted into heat energy due to the presence of resistance, which heats up the heating wire and heats up. By controlling the magnitude and timing of the current, the heat generation and temperature of the heating wire can be controlled. The heating wire heating principle is widely used in various heating equipment, such as electric blankets, electric kettles, electric stoves, etc.

Material of the heating wire:

The material of the heating wire is usually a high-resistance alloy material, such as chromium-aluminum alloy, nickel-chromium alloy, copper-nickel alloy, tungsten, etc. These alloy materials have high resistivity and low temperature coefficient, which can generate a large amount of heat when energized, and also have a certain corrosion resistance and high temperature resistance. In the production of electric Ling trapped wire, these alloy materials are usually processed into filaments, and made into heating wires by twisting, weaving, etc., and then made into heating elements of various shapes through processing and molding.

Explanation of Heating Wire: A metal wire with a high resistance rate and can generate heat when energized. Common heating wires include nickel-chromium wires, which are mostly used in electric heating equipment or appliances such as electric stoves, electric soldering irons, and electric irons.

Word Decomposition Explanation of Electricity Electricity (electricity) à a physical phenomenon, an energy that can be obtained by chemical or physical methods to make a lamp glow, to turn mechanically, etc.: electricity. Electrical energy.

Electric heating. Radio station. On a rainy day, the light emitted when the clouds in the air are discharged:

Lightning. Thunder. Telegram of the Springer:

Power. Message. Refers to telegrams: telegram invitations.

The heating wire is made of scarce nickel metal material, so this series of products** is several times higher than iron-chromium-aluminum, and the service temperature is lower than that of iron-chromium-aluminum.

The heating wire is a more common heating element, which is used to convert electrical energy into heat energy after being energized, and is widely used in metallurgical machinery, medical treatment, chemical industry, ceramics, electronics, electrical appliances, glass and other industrial heating equipment and civil heating appliances. Take the electric heating pipe heater as an example, the heating wire is the core heating element of the heating pipe, so for the heating pipe, the material posture of the heating wire determines the heating performance of the heating pipe.

It is important to know that the types of heating wires are divided according to the different chemical elements and organizational structure of the heating wire. The common heating wires on the market are iron-chromium-aluminum alloy heating wires and nickel-chromium alloy heating wires, which are used as heating elements and have their own characteristics in terms of functional performance.

Iron-chromium-aluminum alloy heating wire

Iron-chromium-aluminum alloy heating wire is a heating wire made of iron, chromium and aluminum, which has the advantages of high resistivity, high surface load, long service life and high operating temperature, and is not easy to fuse, which can ensure the safety performance of the heating tube. At the same time, the iron-chromium-aluminum alloy heating wire also has good oxidation resistance and is durable. However, it also has certain disadvantages, the strength of the iron-chromium-aluminum alloy heating wire is low in a high-temperature environment, and it will deform with the increase of temperature, and it is not easy to recover after deformation.

Therefore, for long heating pipes, iron-chromium-aluminum alloy heating wires cannot be required to bear too high temperatures, so as to prevent heating deformation of heating wires and squeezing magnesium powder, resulting in the rupture of heating pipes.

Nichrome heating wire

Nichrome heating wire is a heating wire made of nickel and chromium metals, the advantage is that the hardness is higher at high temperature, and there will be no deformation at long-term high temperature, even if the nickel-chromium alloy heating wire is deformed due to other uncertain factors, its repair is also very simple. At the same time, the nichrome heating wire is not magnetic, which will not cause the heating tube and the iron and other items to attract or repel each other, and the heating tube is safer. In addition, the nickel-chromium alloy heating wire also has good corrosion resistance, longer service life and more durability.

Therefore, the heating tube of our Taizhuoyang hardware tools uses a nickel-chromium alloy heating wire as the heating element of the heating tube, and it is precisely because of these advantages of the nickel-chromium alloy heating wire that we can manufacture a variety of heating tubes such as single-head heating tubes, explosion-proof heating tubes, flange heating tubes, fin heating tubes, etc., and each heating tube has the characteristics of fast heating and safety.