Since people began to realize the existence of electricity more than two thousand years ago, they began to research and develop it. From the recognition of electric attraction to the discovery of electric current, the discovery of electric current step by step, until the invention of the first rotating friction generator in the world in 1660, but static electricity is generated, which is difficult to be practical; so people continue to study electricity again Explore. In 1800, Volt invented the world's first battery based on his deeper discovery of electric current last year; in 1821, Faraday invented the world's first generator. Became the ancestor of generators. In 1931, based on previous inventions, Faraday discovered in practice and invented the world's first generator that can generate continuous current. All future generators are made based on the same principle of electromagnetic induction. Since then, the invention of mankind in electrical appliances has reached a peak, which also marks that mankind has changed from the era of theoretical electrical appliances to the era of electrical appliance applications.
The electric heating tube is the process of converting electrical energy into heat energy. Since it was discovered that the power supply can have a heating effect through wires, many inventors in the world have been engaged in the research and manufacture of various electric heating appliances. The development of electric heating thus opened a milestone. The earliest appearance was an electric heater for life. In 1893, the prototype of the electric comfort bucket first appeared and used in the United States, and then the use of electric stoves appeared in 1909, which was to place an electric heater in the stove, which means heating Transfer from straw and firewood to electricity, that is, from electrical energy to heat energy. However, the rapid development of the real electric heating appliance industry was after the invention of the nickel-chromium alloy used as an electric heating element.
In 1910, the United States first successfully developed an electric comfort bucket made of nickel-chromium alloy heating wire, which fundamentally improved the structure of the electric comfort bucket, and the use of comfort buckets quickly became popular. By 1925, products that installed electric heating elements in pots appeared in Japan and became the original form of modern rice cookers. Electric heating products such as laboratory electric furnaces, glue melting furnaces, and heaters also appeared in the industry at this stage.
From 1910 to 1925, the emergence and popularization of various types of electric heating appliances in households and industries have developed rapidly. Especially in households, electric heating and electric "cast aluminum heating and cast copper heating" have been a major development stage in the history. Therefore, the invention of nickel-chromium alloy laid the foundation for the development of the electric heating appliance industry. After the 1920s, there is not much new application development in the previous period, but in this stage all kinds of electric heating appliances have been redesigned and continuously improved, which has become an improvement stage in the history of electric heating appliances. In terms of household electric heating appliances, various appliances are designed to be more beautiful, durable and sturdy, and most of them have automatic temperature and time control, so they are free to use, durable and sturdy, and most of them have automatic temperature and time control. Therefore, improper use, temperature incompatibility, and the possibility of disasters can all be avoided. For example, electric stoves, bakeries, pancakes, etc. have automatic control. At the same time, the manufacturing materials are also improved, such as the use of grade A nickel-chromium wire of good quality, and the use of magnesium oxide rods or magnesium oxide powder as insulators.
From the end of the 20th century to the 21st century, the electric heating tube was used in the mature stage, and it was used in various fields such as civil, industrial, military and so on. For example: electric kettles, electric water cups, electric irons and electric ovens and other small appliances mainly use electric heating tubes; hair curlers, hair straighteners, etc. use PTC components; heaters, bath heaters and some heaters use far-infrared carbon fiber electric heating tubes, etc. . The advent of the electric heating tube and the continuous maturity of its technology, the manufacturer's principle of survival of the fittest, batches of more sophisticated products have been continuously developed and widely introduced to the market, bringing fast, convenient, simple and safe production and life to people. In recent years, manufacturers of electric heating components for small household appliances usually complete this part of the work ahead of schedule. For example, when manufacturing accessories for steam iron companies, they have evolved from supplying simple electric heating pipes to directly supplying steam generating devices. Nowadays, electric heating component manufacturers can also supply combined electric heating components such as electric heating film and instant electric heating components. It is understood that although new products such as electric heating films that companies started to promote a few years ago have been accepted by some markets, their market size is relatively small due to their high cost.
The development of the electric heating tube has gone from the original intention of simply working for the equipment to now it has played a pivotal role in the equipment, a necessary condition. In the face of high-tech and technical production, some companies blindly seek economics and ignore the quality of electric heating tubes. Therefore, it is necessary to choose a brand and guaranteed electric heating tube.
