When introducing the high-speed rotor vibration characteristics and critical speed concept of the centrifugal compressor, the definitions of the maximum speed and the minimum speed are introduced, and the method for measuring the static balance and dynamic balance of the high-speed rotor is ex
Read TutorialObstruction of the popularization of electric vehicles has two major obstacles: long charging times and short driving distances. To this end, South Korean scientists have come up with such a way - through electromagnetic induction from the ground to the car
Read TutorialThe 10th Beijing International Construction Machinery Exhibition and Technology Exchange opened today. One of the highlights of this year's exhibition was the 60th anniversary of the founding of the founding of the country’s engineering machinery. Since the founding of th
Read TutorialDuring the Shenyang Chemical Industry Park, it was learned that in recent years, the park has invested a total of about 30 billion yuan to build rubber products. After the production, the annual sales income will reach 46 billion yuan; the annual output of truck tires will be 10 million and the num
Read TutorialAt present, soft starters such as intelligent motor controllers (SMC), Altistart46, MI-CROMASTERVector, PSS, PSD and PS-DH completely replace old starters such as star-delta starters, autotransformers and clutches, and are widely used in water supply systems. Application. Mainly used as the st
Read TutorialThe software company Microsoft has introduced a wearable device called "Microsoft Wristband" that users can use to monitor their physical health and exercise regime. This move marks the first time that the world's largest software co
Read TutorialAs we all know, the United States is a country on wheels, and the best way to travel there is to drive by itself. The United States has a well-developed car rental industry. Major companies include Hertz, Avis, Budget, and National. Among them, Hertz has t
Read TutorialHypertherm CNC cutting machine control system has excellent wisdom and a wide range of applications in cutting processing. It is a professional CNC cutting machine control system, can handle almost all automatic cutting processing, powerful, easy to operate, easy to learn to use, is
Read TutorialThe insurance coverage of used cars can be daunting. Therefore, consumers must fully consider the status quo of the vehicle and the driving technology according to the value of their own vehicles, and adhere to the following principles to determine the type
Read TutorialA few days ago, the Ministry of Environmental Protection released data. In the first nine months of the year, the country eliminated a total of 3.978 million yellow-label vehicles and old vehicles, completing 66.3% of the annual elimination tasks. Among them, only Qinghai and Shandong have complete
Read TutorialWith the implementation of the national IV emission standards in the country, the proportion of newly-sold diesel vehicles in the total sales volume of commercial vehicles quickly fell to 73%, a record low. At the same time, the sales volume of LNG commercial vehicles continues to grow, and the pr
Read TutorialRecently, the Anhui New Energy Vehicle Development International Forum was held in Anhui. The forum was co-sponsored by Anhui New Energy Automobile Industry Technology Innovation Strategic Alliance, Hefei New Energy Automobile Industry Technology Innovation Strategic Alliance, and National Elect
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