Production of flat heating elements. Heating element by hands

The heating flat element is a heater, made of plates of different materials. They are made of a certain shape, each of which serves to heat flat parts. The flat heating element in its construction resembles a rubber wire attached to a special housing. It can be made of metal, ceramic or mikanite. This device is powered by a simple 220V power supply. Using electricity, rubber wire is heated. Then it transfers its heat to the heating element. Such a scheme is used for the production of heating appliances.

Production of flat heating elements

In the manufacture of various equipment, it becomes necessary to heat water, air or solid metallic elements. To do this, it is necessary to convert thermal energy into its other form, that is, into electrical, nuclear, energy from sound waves, etc. For this purpose, various devices are used. It is best to use flat heating elements for surfaces. They are universal and can translate into all kinds of energy.

As mentioned before, rubber wire or tape is used as the heating element. Such heaters are not enclosed in a sealed enclosure, but give away heat directly. Wire and tape are made of materials that have high resistance and low temperature coefficient.

During production, the electric current must interact well with the wire. To increase its conductivity, conductive paste is used. It is applied to a special substrate.

To date, many firms produce a heating flat element made of ceramics, metal, and film. They are performed in a certain geometric form. The flexible planar heating element should have a thickness in the range of 0.1 to 0.5 mm. Products made of metal and ceramics have a thickness greater than the previous view, it is in the range from 1 to 3 mm.

The conductive paste is applied to the substrate according to a special pattern. It is located on the contour of the electrical circuit, which is reliably protected from various factors.

Using this technology, it is possible to apply a conductive paste to any surface. After this, a film with a thickness of 200 μm is formed on the surface of the plate. As a rule, designers make multilayer structures that are used in various heating devices. The radiated heat stream heats the room in a short time, with less energy consumed when compared to other devices. This is done by conductive paste, which is applied to the heating element in several layers. Heat spreads evenly due to the qualitative contour pattern.

Features of heating elements

Flat heating elements can solve many technical problems. They are manufactured in various sizes and geometric shapes, so that they can be easily installed on any surface. Despite the fact that this design has a small power, it is able to quickly and evenly provide heat transfer. In the production process it is allowed to produce heating elements of the same geometric shape, but they must have different power, as well as the ability to distribute the load. Such devices are used when it is necessary to keep specific temperature values of the working surface.

One of the features of this device is a low thermal mass, due to which a rapid temperature change occurs. Setting the temperature regime, as well as changing its performance is by using a special switch. When the toggle switch is turned, the heating element responds to the change and sets the desired temperature. It remains unchanged for a long time. A flat ceramic heating element transmits the heat produced by another surface without any particular obstruction. This technological feature has become popular, so the mass production of heaters is launched.

In conventional heating appliances, heat transfer is carried out using a special insulator. A certain amount of energy is absorbed. A consequence of this is a reduced efficiency of the heating device. Flat silicone heating elements do not interfere with heat transfer, that is, the process takes place directly. That is why energy is saved. Such heating devices are of low cost.

The element itself has small overall dimensions and low weight, so it easily disappears in the main equipment. Thus, the space becomes larger, and additional equipment can be placed in it.

Specifications

Flat heating elements have the following characteristics:

• supply voltage;
• Resistance of the surface resistive layer;
• Breakdown voltage;
• Variable resistance during operation;
• power;
• working temperature.

Options

Possible parameters:

1. Flat heaters radiate uniform heat to another surface, with temperature differences being minimal.
2. Low inertia is provided due to lack of thermal insulation, that is, heat is transferred directly.
3. In the manufacturing process, it is possible to obtain a heating element having various capacities and geometric shapes.
4. The power dissipation reaches 40 W / cm2.
5. The heating temperature on the metal reaches 450 ° C, and on the film - 90 ° C.
6. The equipment is resistant to large temperature fluctuations.

Positive sides

Among the advantages are the following:

• Low power consumption;
• Small overall dimensions and weight;
• The presence of an element that repeats the features of the heated surface, which significantly reduces heat loss;
• At the same expense of thermal energy the device works both for production purposes, and for household.

What is the benefit?

First of all, this design quickly pays off, since the device consumes less power than standard devices. When manufacturing one unit of a heating element, less money is spent. It is worth noting that the finished equipment is of high quality.

Application

Flat heating elements are used in such industries as:

• For the manufacture of various devices that perform rapid and uniform heating;
• In automotive production - for appliances that heat glass, as well as those that operate at a negative temperature, etc.

Flat and flexible heaters meet all the requirements of people.

Heating element for kettle

In this device it is an important device. It determines the rate of boiling of water, as well as the degree of noise. Two types of devices are used here: an open spiral and a disk.

In models with an open heating element, water is in contact with the spiral. Such models almost do not make noise, but their cost is high. The basic requirements at work - that water completely covered a spiral. Otherwise, the device will quickly fail. In addition, a scale is formed on the spiral, which must be periodically cleaned. Such models of devices are rare.

A flat heating element for the kettle is more often located at the bottom of it. Such elements have the form of a disk. So, a large area of contact with water is formed, and it boils faster. In contrast to the spiral form, it is possible to regulate the volume of water independently. It is not necessary for the kettle to fill up to a certain point. Electricity is supplied through a special stand. The kettle on it can rotate 360 degrees.

Another positive quality is the ease of descaling. Since the heating element has the shape of a disc, it can be easily cleaned.

Reviews

Many people use appliances with a flat heating element. The simplest of these is the kettle. Products of such models are popular, as they heat water in a short period of time. In addition, because of the convenient disk element, the element is easily cleaned from scale, which greatly exceeds its counterparts. The only negative point is the noise that is produced during operation. However, many people close their eyes at this moment.

How to make a flat heating element with your own hands

In a short period of time, you can make this device with your own hands. As it can act as a device for heating water. To do this, take two thin plates. As a rule, use blades. Do not use plates made of copper, as they can poison the water. Between the two blades have a match. It is very important that they do not touch each other. Each of them is joined by a copper wire. It is not necessary to isolate it. When working with such a device, you should follow certain rules:

• Before the work begins, the device is first immersed in water, and then it is included in the network;
• Do not heat salted water, as a short circuit may occur;
• Do not touch the water during heating.

Such a device is most often used in dachas or soldiers in the army.

Conclusion

Flat heating elements are new equipment that meets all the customer's requirements. First of all, it concerns the power indicators, as well as the uniformity of heat distribution over the surface. Such elements have small overall dimensions and weight, which allows you to spend space on the placement of additional devices. Many users note the resistance to vibration and large temperature fluctuations. An important positive feature is low power consumption.

So, we found out what a flat heating element is, where it is used and how to make it by hand.