In recent years, new energy vehicles have developed rapidly, and the production, sales and possession of new energy vehicles in China have grown rapidly. In 2017, the cumulative production and sales of new energy vehicles in China were 794,000 and 777,000, respectively, with year-on-year growth of 53.8% and 53.3% respectively. Before 2009, the number of new energy vehicles in China was less than 500. By 2017, the number of new energy vehicles in China reached about 1.7 million. With the continuous development of the new energy automobile industry and the rapid growth of the quantity of possession, China's new energy auto parts industry has ushered in a period of rapid development.
Different from traditional auto parts, electric vehicle parts mainly include electric drive system, power supply system and auxiliary system. Among them, the electric drive system can be basically divided into two types: the motor central drive system and the electric wheel drive system, including electronic components, power converters, electric motors, mechanical transmissions, and wheels. The motor central drive system includes an electric motor, a reducer, a differential, a mechanical transmission, and a wheel; the power supply system mainly provides power supply, including a power supply, an energy management system, and a charger; the auxiliary system includes an auxiliary power source, a power steering system, and a navigation system. Systems, air conditioners, lighting and defrosters, wipers and radios.
Motor, battery and electronic control are the core components of electric vehicles. Among them, the motor is the power source of the electric car, which is equivalent to the engine and gearbox of the traditional car. The core component of the motor controller is the IGBT, but it basically depends on the import; the battery directly determines the endurance and service life of the electric car, which is electric An important manifestation of the core competitiveness of automotive companies. With the subsidy policy of electric vehicles with an endurance capacity of more than 300 kilometers in China, the importance of batteries is more prominent; the in-vehicle energy system is the core technology in the electronic control system, which is a link between the battery and the battery pack and the whole vehicle system. Including battery management technology, on-board charging technology and DCDC technology and energy system bus technology. Therefore, vehicle energy system technology has increasingly become an important direction of industrial application technology research.
In 2017, China's automobile production and sales completed 29.015 million and 28.879 million, respectively, and the market share of electric vehicles was less than 5%. As the national policy continues to tilt towards the new energy vehicle sector, the market share of electric vehicles will continue to increase in the future, and the market for electric auto parts industry has broad prospects. According to the new electric industry research center, "2018-2022 China Electric Vehicles" The special industry research and investment feasibility assessment report shows that the market size of China's electric auto parts industry will exceed 100 billion yuan by 2020.
At present, domestic and foreign auto and parts companies are actively deploying the electric vehicle market, and the capital market is also accelerating into the field of electric vehicle parts. In addition, according to feedback from electric vehicle parts dealers and dealers, electric vehicle parts have brought good returns to enterprises. Electrification is an irreversible trend in the automotive industry and is currently an important period for investors to enter electric vehicle parts.
Composite Nylon Plastics Material PA66
Main Properties of PA6 and PA 66
PA6 & PA66 are by far the most used polyamides globally. Both Polyamide 6 (PA6) and Polyamide 66 (PA66) are widely used in many different markets and applications due to their excellent performance/ cost ratios. Their key properties are listed below.
High strength and stiffness at high temperature
Good impact strength, even at low temperature
Very good flow for easy processing
Good abrasion and wear resistance
Excellent fuel and oil resistance
Good fatigue resistance
PA 6 has excellent surface appearance and better processability than PA66 (due to its very low viscosity)
Good electrical insulating properties
High water absorption and water equilibrium content limits the usage
Low dimensional stability
Attacked by strong mineral acids and absorbs polar solvents
Proper drying before processing is needed
Although, they exhibit similar properties, slight differences do remain. PA6 has a slightly lower temperature resistance versus PA66 and is also slightly less expansive.
Pa 66 Gf30,Pa66 30 Fv,Pa66 Resin,Pa66 Plastic
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