"Gravity Die Casting. A permanent mould casting process, where the molten metal is poured from a vessle of ladle into the mould, and cavity fills with no force other than gravity, in a similar manner to the production of sand castings, although filling cn be controlled by tilting the die."
Sometimes referred to as Permanent Mould, GDC is a repeatable casting process used for non-ferrous alloy parts, typically aluminium, Zinc and Copper Base alloys.
The process differs from HPDC in that Gravity- rather than high pressure- is used to fill the mould with the liquid alloy.
GDC is suited to medium to high volumes products and typically parts are of a heavier sections than HPDC, but thinner sections than sand casting.
There are three key stages in the process.
Advantages
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On December 13, Dongfeng Nissan delivered 120 Qichen morning wind electric vehicles to the Guangzhou market, after which the 120 pure electric vehicles will enter the taxi and car rental market in Guangzhou. This move is not only an addition to the development engine of Dongfeng Nissan's Kai Chen brand three years after its birth, but it is an important innovation in the cooperation model of the future business model for the electric vehicle industry.
Endured 180 kilometers to achieve "zero emissions" on the road
The 120 Qichen Morrison pure electric vehicles delivered this time have adopted the world's leading lithium-ion battery technology. In the fast charge mode, the car can continue to travel for 60 kilometers and 30 minutes in just 5 minutes. Charge 80%. And because its driving technology is completely different from the traditional fuel automobile technology, except that the cruising range can reach 180 kilometers, the driving process is smooth and without noise, and there is no flicking phenomenon when turning sharply.
Ren Yong, deputy general manager of Dongfeng Nissan Passenger Vehicle Co., Ltd. stated that after the batch investment demonstration operation, Dongfeng Nissan Kaichen will also put 1,000 Morrowind pure electric vehicles in Dalian.
Song Yuanming, general manager of Dongfeng Nissan Passenger Vehicle Co., Ltd. stated, “I hope that in the near future, we will run pure electric vehicles with 'zero emission' everywhere, and we also believe that Dongfeng Nissan’s Qichen Morrison pure electric vehicles, It will be the leader in this model."
Cooperation model innovation to promote the commercial operation of pure electric vehicles
On the day of batch delivery, Guangzhou Qicheng Taxi Co., Ltd. also formally announced its operation. The vice president of Dongfeng Motor Co., Ltd. Guan Run and the deputy general manager of Dongfeng Nissan Passenger Vehicle Ren Yong introduced Dongfeng Nissan's strategy for the development of pure electric vehicles. At the 8th China (Huadu) Automobile Forum, it also issued the government, power grid, Car companies, society and other related parties "work together to explore and establish a new business model for the development of electric vehicles, and work together to promote the development of electric vehicles, and create our common green home" initiative.
In the process of discussing the business model, Guan Run, vice president of Dongfeng Motor Co., Ltd., said that the electric vehicle is very suitable for the characteristics of the island nation because the gas station in the island country is not popular and the mileage does not have to be very long. But for consumers in big cities, 180 kilometers of cruising range can meet the needs of 80% of consumers. The follow-up focus will be on the basis of further research on better business models without increasing the difficulties of users.
The government, power grids, enterprises, and society will jointly promote
As an epoch-making revolution in the history of the human car industry, the development of electric vehicles requires the joint participation and efforts of the government, the power grid, automobile manufacturers, and the society in order to be truly popular. However, the reality is that the lack of an ability to balance the needs of all parties. As a result of the business model, even though it is highly regarded by the government and electric vehicle technology is basically mature, all parties involved have always been unable to form a joint force to jointly promote the development and popularization of electric vehicles.
It is said that in Norway, due to the strong guarantee of the government, electric vehicles have become the first-selling model; in Japan, the interconnection of EV and power grid is also more flexible. In contrast, China's electric car market is still a blue ocean to be developed. Ren Yong initiated an initiative in this regard, calling for the need to strengthen exchanges and collaborations between government and enterprises, between enterprises and enterprises, and between enterprises and society, to jointly develop the business model of electric vehicles, to make cakes bigger and to promote electric power. The development of automobiles will benefit human common green homes."
Yang Yanwen, secretary of the Huadu District Party Committee, said that Huadu will speed up the construction of charging facilities in the area this year. The construction project includes a large-scale charging station, 24 fast charging stations and 175 slow charging stations to ensure the smooth operation of electric vehicles. Lin Zhongjian, Governor of Huadu District People's Government, believes that the government should do more work in the service sector. Business model innovation is an important way to promote the industrialization of electric vehicles. Shenzhen and Shanghai provide good experience for our reference. In addition charging facilities need to further standardize. It is expected that Huadu will further promote the localized production of electric vehicle parts and components from 2016 to 2020, drive the common development of the upstream and downstream industrial chains, and form an annual production capacity of 100,000 pure electric vehicles.
“Energy and environmental pressures, the development of science and technology, and the promotion of government departments have already made the human car industry stand at a turning point at the turn of the new and old ages. At the turn of the times and on the eve of a change, only the parties concerned work together and cooperate sincerely. To cultivate a new business model that is truly suitable for the development of electric vehicles, the era of human electric vehicles will really come, we can have a new future of green environmental protection.†Ren Yong also said the voice of many car companies. In the future of the development of electric vehicles, it is also necessary to promote the healthy development of these vehicles with the innovative business model under the joint promotion of all parties.
Gravity Die Casting