Siemens AG Historical Background
In 1816, Werner von Siemens was born in a peasant family. Due to the limited financial conditions of the family, Siemens joined the army after graduating from middle school. He became very interested in the telegraph in the army, and invented and manufactured the compass telegraph (very popular at the time) The product).
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▲Compass telegraph
In 1847, Siemens and engineer John George Halsk relied on the 6842 thaler silver coins invested by his cousin (1 thaler is equivalent to 3 marks) to establish the Siemens-Halsk Telegraph Manufacturing Company (abroad people like to use their own names as The company, the British company Martin Baker mentioned yesterday), mainly produces the compass telegraph invented by Siemens, and this company is the predecessor of Siemens. In 1848, Siemens won the contract for the telegraph line from Frankfurt to Berlin, and it began to develop greatly.
As a physicist, Siemens' love for technology has directly affected the development of Siemens. In addition to managing the company, Siemens spends more time on research and invention. In 1866, Siemens proposed the working principle of the generator, and an engineer from Siemens completed the first self-excited DC generator. In the same year, Siemens also invented the first DC motor.
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These technologies developed by Siemens are often commercialized and put into the market immediately, or applied to new products. For example, electric locomotives (1879), elevators (1880), trams (1881), trolleybuses (1882), etc. were the first to be put on the market by Siemens with the invention of its founder. Ironically, the electric car, which didn't start to develop until the end of the 20th century, was also invented by Siemens in 1898.
The Siemens Group, headquartered in Berlin and Munich, is one of the world's largest electrical engineering and electronics companies. Its business covers more than 190 countries around the world, with about 600 factories, R&D centers and sales offices around the world. The company's business is mainly concentrated in six major areas: information and communication, automation and control, power, transportation, medical systems and lighting.
Siemens is the second power giant in the world
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▲Siemens - SGT5-8000H super heavy gas turbine is the largest gas turbine in the world
Siemens—SGT5-8000H super heavy gas turbine is the largest gas turbine in the world, with a power 1.93 times that of the Nimitz aircraft carrier, and one can provide electricity for a large industrialized city. If the aero engine is the "flower of industry", then the super large gas turbine is the "crown jewel" of the industry.
Heavy-duty gas turbines are the core of power equipment in the 21st century, and gas turbine technology is currently recognized as a key technology that marks the advanced level of a country's industrial foundation! Super-large gas turbines are recognized as the most difficult to manufacture: the price of a blade is equivalent to a BMW, and the slightest error is scrapped. Its power is equivalent to the sum of the engines of 13 Airbus A380 jetliners. The power of 375MW is equal to 1.93 times of the total power (194MW) of the "Nimmitz" aircraft carrier! The power generation of a SGT5-8000H super large gas turbine is enough for an industrialized city!
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▲Siemens SGT5-8000H heavy-duty gas turbine high temperature heat shield and rotor turbine disk
The world's largest industrial software giant
NASA assembled and built Curiosity based on precise simulation designs provided by Siemens PLM. "Curiosity", the most complex space probe of mankind, can be described as a process of fusion from virtual to reality. Siemens provided NASA with PLM intelligent software, covering the entire process of R&D and testing of Curiosity. For example, the "air landing machine", landing on Mars, etc. are all simulated by the software for thousands of times, which greatly increases the possibility of its success.
Siemens' PLM series software optimizes the CNC machine tools of Mori Seiki (Japan), and applies computers to the process or system of the manufacturing process. The feature of CNC is to control the machine tool by the program instructions encoded on the perforated paper tape. Automatic tool change and automatic conversion of working positions in the library can continuously complete multiple processes such as sharpening, drilling, dumpling, and tapping. Thus cutting Mori Seiki (Japan)'s CNC machine tool design-to-manufacturing time in half and increasing the ability to release more new products
The world's largest electrical engineering giant
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Siemens manufactured the world's first 800KV UHV DC transformer, which became the core device of UHV power transmission
The world's leading automation giant
Siemens' automation ultramicroelectronic chip and S7-1500 automation control system, S7-1500 automation control system is called the ultimate weapon of automation and a milestone in the field of automation.
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The CNC system is the core of the machine tool, which is equivalent to the brain of the machine tool. Siemens, Fanuc, etc. represent the highest level of the world's CNC systems. The numerical control system is a special computer system that performs part or all of the numerical control functions according to the control program stored in the computer memory, and is equipped with an interface circuit and a servo drive device. The action control of one or more mechanical equipment is realized by using digital instructions composed of numbers, words and symbols. It usually controls mechanical and switching quantities such as position, angle, and speed.
Siemens in China
Siemens has always enjoyed a global reputation as an international company. After the company was established 25 years ago (1872), Siemens started business with China. Siemens' first order in China was to provide pointer telegraphs to China, which marked the beginning of China's modern telecommunications industry.
In early 1879, Siemens received an order for "lighting equipment" from the Chinese government. Siemens provided a 10-horsepower steam generator for the lighting of Shanghai Port, which greatly improved the working efficiency of the port. Siemens applied the revolutionary generator to the land of China for the first time, thus entering the annals of Chinese history.
Siemens' business in China, especially in the power field, developed rapidly in the early 20th century. In 1912, China's first large-scale hydropower station, the Shilongba Hydropower Station, was built in Yunnan Province, and the generators were manufactured by Siemens AG of Germany. So far, Siemens motors are still operating normally, and the hydropower station is also known as a wonder in the Spring City of Kunming.
