
The Source of Heating Tube
The world's first electric heating tube was born in 1859, which is an important milestone in the history of heating technology. In the late 19th century, Mr. Simpson created the world's first electric heating tube and obtained the patent for the product, which was a remarkable feat. This device encapsulates a ring-shaped metal wire inside a metal tube and uses ceramic insulation material for insulation, and the space between the metal tube and the metal wire becomes the heating element. However, in that era, due to the lack of precision machining equipment and suitable resistance wires as heating materials, only iron wire or expensive precious metals could be used, which severely limited its practicality and hindered its widespread promotion. Therefore, the development process of electric heating tubes is quite slow.
(In 1917, American electrical engineer Edwin L.Wiegand invented the world's first metal shell electric heating tube.)
Until 1925, Japan introduced cooking utensils with electric heating elements, which became the prototype of modern rice cookers. This innovation provides a new direction for the application of electric heating technology in household appliances.
At the beginning of the 20th century, the United States made a key breakthrough by developing an electric iron made of nickel chromium alloy heating wire. This not only improves the structure of the iron, but also makes it widely popular. This achievement has laid a solid foundation for the further development of electric heating tubes. Over time, electric heating tube technology continued to evolve in the following decades. In the industrial field, electric heating tubes have begun to be applied in various heating furnaces, drying equipment, etc. Their ability to accurately control temperature greatly improves the efficiency and product quality of industrial production.
In the mid-20th century, with the further development of materials science and manufacturing technology, the performance of electric heating tubes was significantly improved. A new type of insulation material has been developed, which not only enhances the safety of electric heating tubes, but also improves their durability. At the same time, the material of the resistance wire is also more diversified, and the most suitable material can be selected according to different application scenarios, further optimizing the heating efficiency of the electric heating tube.
In the 21st century, electric heating tubes have been widely used in high-end fields such as healthcare, scientific research, and aerospace. In medical equipment, such as some high-precision biochemical analyzers, electric heating tubes provide a stable and accurate heat source for sample processing, ensuring the accuracy of detection results. In the aerospace field, electric heating tubes are used for equipment insulation and special heating needs in extreme environments, and their reliability and stability have withstood rigorous tests. It can be said that electric heating tubes have been an indispensable part of modern technology and life since their inception, and have undergone the baptism of time and technological innovation. They are still constantly developing and advancing, and are expected to shine in more emerging fields in the future.