What Is a Heating Apparatus?
Heating devices are used to heat various objects such as scientific chemicals and samples using combustible gas or electricity.
Generally called “heaters,” there are a wide variety of products in circulation, ranging from industrial products capable of heating up to 1,000°C or higher to so-called “induction heaters” and “electric heaters” for general household use.
In recent years, in addition to improvements in production technology, electric heaters have become more common due to the ease of securing a heat source (power source) and safety.
Applications for heating apparatuses
Heating devices are extremely versatile and are used in a variety of industries.
For R&D of industrial products, heaters are used for “chemical heaters,” which are immersed in a chemical solution and heated from the inside, and heaters for “constant temperature storage,” which are used to store chemicals or powdered objects that easily scatter in a high-temperature state. In addition, “bar heaters” or “electric stoves” are used to heat materials in oil when hard-fitting ring gears, bearing inner races, and the like.
In addition, “high-frequency heating equipment,” which can heat to extremely high temperatures, is used as a metal melting furnace because it can self-heat metal to ultra-high temperatures exceeding 1,000°C without contact.
Features of heating apparatuses
Taking the aforementioned product as an example, a “chemical heater” is a “rod heater” coated with a fluoroplastic or other material that excels in corrosion and weather resistance, so it is resistant to erosion even when immersed in a chemical solution.
Also, “rod heaters” used for heating liquids such as water and oil can directly heat the liquid from the inside of the container instead of from the outside, thus reducing the time required for temperature rise.
Unlike “high-frequency heaters” and “induction heaters” that use Joule heat generated in electric heating wires or heating elements, “high-frequency heaters” and “induction heaters” use “self-heating phenomenon (Joule heat)” generated by electromagnetic induction, which can heat an entire object evenly. The temperature can be easily varied from low to ultra-high temperatures by controlling the output power. In the case of metal melting furnaces, the electromagnetic force stirs the inside of the furnace, and this feature makes the furnace very easy to use in terms of operator load and work environment.
Other products using silicone rubber can be freely deformed. Those using transparent conductive films, such as those used to prevent fogging of the glass, have the feature of not interfering with vision.