The basis of all our products are heating elements with unique properties, manufactured by applying resistive and dielectric paste on the professional equipment for screen printing from the best international manufacturers. The heating elements, which are manufactured, applying such method, are called “thick film heating elements” as heating layer forms a film on the substrate surface. Stainless steel and ceramics can be used as a substrate.
The structure of heating elements include severаl parts:
- Metal substrate of “04X17, 08X17, 20X13, 15X25T” type or ceramic substrate of “BK-94, BK-96” type.
Dielectric paste of “PD-2” type. The resistance of the insulating layer is not less than 50 Megohms. With the diameter of 150 microns the break-down voltage is not less than 1250 V.
- The protective dielectric layer — is paste of “PD-1” type. The resistance of the insulating layer is not less than 50 Megohms, with diameter of 150 microns.
- The film track of resistive paste of “PRN” type. Surface resistivity of the film is from 0.05 to 50 Ohm/cm2. Temperature resistance coefficient (TRC) is positive.
- Contact paste of “PK” type. Surface resistivity is from 0.01 to 0,050 Ohm/cm2, strength of adhesion with substrate is not less than 50 Pa/cm2.
The technology was invented a few decades ago, but has not found a common use in view of high cost. The reason is that pastes of international producers which are applicable in the manufacture of heaters and include precious materials, such as: silver, palladium, ruthenium, gold, etc. Among the most popular international producers of pastes, there are companies such as “DuPont”, “ESL Electroscience”, “Heraeus”, “Tanaka”, etc.
The peculiarity of heating elements, designed by RS «Drying», is that the unique composition of pastes was designed for them, which does not include precious materials, and its recipe is a closely guarded secret. That particular makes it possible to apply effective, but especially expensive technology for industrial and domestic needs.
Thick film heating elements (TFHE) have the number of technical advantages over outdated technology of tubular electric heaters (TEH):
- Construct of TFHE allows conversion of electric energy into heat more efficiently due to the directional heat removal while avoiding the abundant heat dissipation.
- The form factor of TFHE allows you to find more suitable methods of installation in device thereby heat removal area greatly increases. Increasing of heat removal area helps to reduce the heating temperature of the heater, which significantly increases technical lifetime.
- TFHE have a posistor effect (so-called intellect effect the effect of self-regulation). When TFHE heats the resistance varies, so power consumption decreases. Thereby TFHE are protected from overheating. Due to the presence of this effect, the start capacity of products is higher than working capacity.
- As well as TFHE have a character of self-heating, they emit an intense heat flux in the form of long-wave infrared stream which corresponds to the radiation of human body. Thus, infrared radiation from heaters does not have a negative impact on the human body. Infrared radiation is the basis for the implementation of the so-called «passive heating elements» thereby heat removal area greatly increases. It increases the efficiency of devices.
- These are not all the advantages that help to improve the efficiency of devices, as well as to save electric energy consumption at the level of up to 40% compared to devices based on tubular electric heaters.
Branches of effective use of heaters:
- Food manufacturing industry:
- kitchen electrical, industrial and domestic cookers (burners) for foodser- vice outlets and for domestic purposes;
- frying, wind, baker electrical cabinets, electric furnace for pizza, cooking electric pots (pots for cooking minced meat), water heaters for water boiling, steam tables (lines dispensation of food, heated), frying surfaces (electric pans of large diameter up to 740mm), electric grills, deep fryers (for cooking pies, potatoes, chebureki), toasters, electric wafer-irons.
2. Communal service and housing development:
- heating device for living and auxiliary areas: convectors, calorifiers, heaters, electric boiling pans, boilers
3. Building industry:
- air heaters and mobile calorifiers, driers and drying guns with directional effect, directive and non-directive radiant infrared heaters;
- plastic pipes’ cutters of large diameter
4. Agricultural industry and farming:
- drying machines of small (household) and a large (industrial) capacity for drying free-running, vegetables, fruits and wild herbs, air heaters and calorifiers, hatchers, heating of animal and fowl farms, in-line and tank heating of food and process water
5. Wood-working industry and furniture trade:
- lumber drying, air heaters, drying cells after paintwork, infrared drying of furniture elements, heating of large pressing tools and plates
6. Packaging industry:
- injection molding machines, devices for printing on films, devices for welding of packaging films and manufacturing of plastic packages for food
7. Chemical and plastics industry:
- Heating of pressing tools, in-line and tank heating of solutes and water, non-contact heating of reactors up to 400 °C, non-contact heating of vessels including vessels with corrosive environment, annealing of granular materials, drying closets and drying machines, heating of film materials when duplicating and before compression, heating of plates
8. Automobile industry and mechanic transport:
- “after coloring” drying cells, air heaters, low-voltage heating of driver cabins and passenger compartment saloons, heating of rear-view mirrors
9. Radio electronics:
- microheaters, spot heaters, soldering coppers, drying of electronic boards, heating of galvanic solutes, infrared drying of television tubes
10. Medical industry:
- drying closets and drying machines, dry-heat-sterilizers, steam autoclaves, laboratory plates for solutes heating, infrared healthful saunas, dental heating vessels, spreaders, formers of dental crowns
11. Railway service:
- in-line and tank heating of carriages and drawing rooms, water heating, heating of drain valves, heating of turnouts. Electric burners for cooking to a safe voltage of 24-72V
12. Aircraft industry:
- heating of electronic devices operating at very low temperatures; heating of control systems.