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A few days ago, the production and sales data of the Chinese automobile market was released in April. The data shows that in April, the production and sales of automobiles reached 1,899,400 and 1,841,700, respectively, which fell by 8.9% and 9.5% respectively. It is estimated that by 2015, China’s six major vehicle manufacturers, FAW, SAIC, Dongfeng, Chang’an, GAC, and BAIC, will have a total production and sales target of more than 28 million units, and Chery, Geely, BYD, Great Wall, Brilliance and JAC’s total sales and production targets. It will also reach 12 million vehicles, and the annual sales volume of 40 million vehicles will exceed twice the current sales volume.
The huge automobile market will inevitably stimulate the development of the related spare parts machine tool industry. According to the “2012 Global Automobile Industry Senior Management Survey Report†published by KPMG, the number of idle cars in China reached 6 million units in 2011. It is estimated that by 2016, Idle capacity will also increase to 9 million vehicles. By then, the competition in China's passenger vehicle market will be fierce and the companies will face the survival of the fittest, while large-scale mergers and reorganizations and market adjustments will emerge.
Machine tools are the technological means of automobile production. The level of manufacture and quality of automobiles depends largely on the level of precision of the molds and machine tools. The automotive and parts industry is the largest and most important user of the metal cutting machine tool and mold manufacturing industry. In terms of automotive parts processing, China's CNC lathes and vertical machining centers can basically meet the needs of auto parts mold manufacturing.
In addition, a number of sensors are used during the production of the machine tool, such as touch sensors for position detection, proximity switches, piezoelectric sensors for detecting pressure, piezoresistive sensors, and capacitive sensors, as well as common platinum sensors. Copper-based thermoelectric cathode sensors, semiconductor-based thermistor sensors and thermocouple sensors. On CNC machine tools, temperature sensors are used to detect temperature and compensate for overheating. The machine tool production process is based on sensors and other components. It also puts higher requirements on the sensors. The sensor expert network focuses on the connection between sensor technology and people's lives and provides a series of sensor solutions based on automotive electronics.
According to statistics, China's auto industry is currently the mainstay of machine tool consumption. Machine tools account for about two-thirds of the total investment in fixed assets of automobile manufacturers. Among them, the demand for machine parts for auto parts processing is about ten times larger than that for automakers. 70% of industry machine tool demand. Three years later, due to the large number of idle production capacity and large-scale mergers and reorganizations in China's auto industry, the demand for machine tools in China's auto processing industry will gradually decline, and its demand for machine tools will also be more environmentally friendly and efficient. The increase in demand for machine tools has further increased the requirements and quality requirements for various sensors such as proximity switches, speed sensors, and pressure sensors. 
