In the investment casting industry, steel castings are the most used castings in the manufacturing industry, and are widely used in equipment, agricultural machinery, machining, and automobile industries. Metal castings can produce parts with complex shapes, but there are also requirements for the design of the product structure. In the case of meeting the requirements of use, it should also try to comply with the casting process. For example, in the structural design, care should be taken not to have thin walls, which may easily lead to dissatisfaction with pouring or product deformation; for example, try not to have sharp corners, try to use radian transitions; and try not to appear small and deep blind holes, It will cause great trouble for foundry sand cleaning. Of course, there are many other structural problems. We will improve and optimize the product structure according to the customer's drawings without changing the customer's functional use, so as to maximize the product qualification rate and production efficiency. In some cases where the structure cannot be changed, we will also perform some follow-up processing after casting according to actual problems, so that the expected results can also be achieved.
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If this plan is formally implemented, hybrid vehicles are classified as energy-saving vehicles. Since then, they have not enjoyed the subsidies of several million yuan for new energy vehicles, and they can only enjoy a subsidy level of 3,000 yuan. As soon as this news was revealed, many car companies were puzzled: Why is the promotion of the most realistic hybrid cars impossible to receive strong government support? Does China have to bypass hybrid technology and go straight to pure electric vehicles?
On the 10th of this month, when the China Automobile Association released the July automobile industry production and sales data, Dong Yang, Secretary-General of China Automobile Association, explained this. Dong Yang said: "Hybrid power is not new energy technology is not a news, it should be divided into energy-saving technology. We believe that the difference between hybrid and new energy vehicles can achieve profitability, the current 'start stop' technology costs thousands Block, ISG mixed technology one or two thousand, hybrid cars are very easy to achieve profitability, and the three categories of new energy vehicles are currently not profitable, the use of these three forms of driving the car price is poor, not support very It is difficult to form an industry."
The reporter learned a point recently when interviewing Lin Cheng, the deputy director of the National Engineering Laboratory for Electric Vehicles of the Beijing Institute of Technology, and also reads from another perspective why the hybrid car will fall out of the category of new energy vehicles.
Director Lin said: “After mastering the technology of traditional engines, we can talk about hybrid technology and better technology. The hybrid vehicles we are now doing are not inferior to traditional fuel vehicles in comparison with foreign ones. In terms of the state, investing a lot of money to support hybrid power may be an old road, and we can find another way to do pure electric power, which will narrow the gap with foreign countries and we can account for the strategic transformation. This is why government officials and experts in our country have reached a consensus. We hope to be able to overtake, although it is very difficult, and it is more realistic to catch up with the power in the traditional car field." 
Recently, the Ministry of Industry and Information Technology, the Ministry of Science and Technology, the National Development and Reform Commission and other departments have repeatedly argued that the scope of new energy vehicles in China is finally clarified: there are only three types of new energy vehicles, 1. Plug-in hybrid vehicle; 2. Pure electric car; 3. Fuel cell car. This information is derived from the draft "Automobile and New Energy Vehicle Industry Development Plan" (2011-2020) (hereinafter referred to as "New Energy Vehicle Planning"), which determines that the most mature hybrid vehicle currently being marketed is not considered as new energy. In the automotive category.