Recently, the Ministry of Environmental Protection issued the “Announcement on the Implementation of National Phase IV Heavy Duty Gasoline Engine and Vehicle Emission Standards†(hereinafter referred to as the “Announcementâ€). It is clear from July 1 next year that heavy-duty vehicle gasoline engines will The car must meet the requirements of the national IV standard.
The "Announcement" stated that, starting from July 1, 2013, all heavy-duty gasoline engines and vehicles produced, imported, sold, and registered must comply with the requirements of the National IV Standard, and related companies should promptly adjust production, import, and sales plans. .
Since the beginning of 2010, the implementation of the National IV Standard has been delayed several times. Previously, for the date of implementation of the July 1, 2013 date set by the Ministry of Environmental Protection, many people in the industry were skeptical. Today, the Ministry of Environmental Protection has repeatedly issued a document stating that it is in commercial use. The determination of the car to implement the national IV standard. However, from the perspective of market feedback, the National IV standard has to be implemented and implemented throughout the country. It is still a difficult task and it needs to cross several barriers.
The first hurdle: Oil industry experts and business people think that oil is one of the recognized problems, but this does not depend on the vehicle company. The company hopes that the oil supply will break through before the implementation date.
“Now, the relevant domestic supporting facilities are not formed. Taking urea as an example, the relevant supporting measures for the production of urea and even urea are still not perfect, and the relevant industries should keep up with the progress in order to better and faster promote the national IV standards. What is difficult is that China IV oil cannot be fully supplied,†said Wei Libao, chief engineer of the technical department of FAW Jiefang Automobile Co., Ltd.
The second hurdle: technology in the technical line, each vehicle company has its own emphasis. For example, heavy vehicles are mainly based on SCR technology. However, this technology route is highly dependent on urea. The vehicle manufacturer recommends that the State strengthen the management and supervision of urea production enterprises, including the construction of related supporting facilities. In the light vehicle technology line, various vehicle companies have different opinions. Some enterprises recognize the DOC or DOC+POC technology route. Some enterprises think that technical routes such as DPF+DOC or DOC+POC can be implemented, but the advantages and disadvantages are not. one.
The country IV technology has matured. There is no doubt about this, but there are too many hardships behind it. "If post-processing technologies and electronic control technologies are all in the hands of foreign companies, it is not impossible for them to be realized at home, but it is difficult at this stage." Wei Libao told reporters, "The current key spare parts technology is mostly in the hands of foreign companies, and many parts and components are purchased. All are foreign products, mainly in Corning, Bosch, etc."
In this regard, Bei Wei, deputy chief of the electronic control calibration division of Beiqi Foton Motor Co., Ltd. also gave his opinions. He said: “For the implementation of the relevant regulations of the National IV standard by the Ministry of Environmental Protection, companies have done related work seriously and the products have been It is necessary to mention that, at present, key technologies are mostly controlled by foreign companies, but the level of domestic manufacturing processes is relatively low, and the capacity of supporting enterprises is slightly insufficient, and it must be strengthened in product consistency and other aspects."
The third hurdle: How can the market accept end users? To this problem, Yang Xiyuan, chief of the engine department of Dongfeng Motor Co., Ltd. Commercial Vehicle Technology Center, believes: “For ordinary people, commercial vehicles are production materials, as long as they can transport goods from one place to another, and at the same time pay a price. As small as possible, users will be satisfied, but the purchase of national IV vehicles is likely to bring a cost burden to users.Therefore, we can only improve the quality, reduce the user's use, maintenance costs, improve its transport efficiency.
In addition, reducing vehicle fuel consumption is also one of the measures. According to internal test sample data, National IV vehicles using the SCR technology route can indeed improve fuel economy. â€
Relevant person in charge of a vehicle company stated that the state implements the national IV standard, and the corresponding national IV product and supporting component system will eventually fall on the issue of localization, so that the company can fundamentally reduce the cost pressure, otherwise the pressure will be passed on to In the terminal market, users are hard to accept.
Market Potential Forecast If the above problems can be properly resolved, what impact will the implementation of the National IV Standards bring to the domestic heavy truck market? According to relevant departments' forecast, the new market brought by China IV will exceed 10 billion yuan.
What is the stage for China IV to be held in the second half of next year? Some financial institutions have forecasted that, in the short term, due to the obvious cost advantage of heavy truck III products, China's Type III heavy trucks may gain high market enthusiasm in the first half of 2013 before the implementation of the National IV standard. In the case of annual sales volume of the heavy-duty truck market that does not increase or even shrink, the space reserved for China IV in the second half of next year may be relatively small, and in 2014 it is expected to be fully developed.
Compact machining center is a type of machining center that is further improved and derived from the structure of a vertical machining center. With the development of society, modern people's pace of life is getting faster and their work efficiency is getting higher. In the field of metal cutting, basic processing functions such as drilling, tapping, and milling are no longer problematic on vertical Cnc Milling Machines. However, with the changing times, such requirements are gradually unable to meet the higher requirements of customers. People are looking for faster, higher precision, and more environmentally friendly processing equipment, and compact Machining Centers are born to meet these needs.
In China, this type of compact machining center is usually called a drilling tapping center. Its characteristics are compact machine structure and high production efficiency. Typically, compact machining centers have the following characteristics:
1. Compact structure, small appearance, and small footprint. The ground space is reduced by 21% compared to Vertical Machining Centers. More machines can be placed in the same venue and space. Generally, manual vehicle insertion can be used for transportation, and it can be accessed by the factory freight elevator for easy transportation to the floor type workshop. The maximum travel of the machine tool on the X-axis generally does not exceed 700mm, and on the Y-axis it does not exceed 400mm. Very suitable for processing small parts such as 3G industry, electronics industry, medical devices, etc. Of course, as customer demand develops, the travel of the X-axis has also expanded to larger specifications for more customers to choose from.2. The displacement speed is fast, and the machine tool can move at least 48m/min and up to 60m/min.
3. The spindle adopts a BT30 20000/24000rpm spindle, and the normal spindle speed is at least 10000rpm or above, usually 12000rpm or even higher. Therefore, the speed has also been relatively increased during drilling and tooth tapping.
4. Adopting a flying saucer type tool magazine, its characteristic is that the tool magazine is located on the spindle, which reduces the tool changing path and greatly improves the tool changing speed during tool changing. The fastest tool changing time is 1.2 seconds. Like LEYO compact machining centers generally use servo tool libraries, which improve the speed and efficiency of tool changing compared to ordinary tool libraries.
5. It is more energy-efficient and environmentally friendly. Drilling machines have a processing efficiency twice that of vertical machining centers, and the more efficient they are, the more environmentally friendly they are. Energy consumption is reduced by 70% compared to vertical machining centers.
6. It can achieve a higher degree of automation in production. If combined with the use of robots and real-time online diagnosis through the Internet, continuous production can be achieved 24 hours without human supervision, further improving production efficiency and automation.
Therefore, compact machining centers are very suitable for factories to process small and large quantities of spare parts. A factory with very high requirements for production efficiency.
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Dongguan Liyang Intelligent Technology Co., Ltd , https://www.leyomachine.com