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Recently, at the 2014 International Symposium on Reliability Technology of Internal Combustion Engines sponsored by the Automotive Engines Branch of the China Association of Automobile Manufacturers, Ye Shengji, deputy secretary-general of the China Association of Automobile Manufacturers, raised this phenomenon. He believes that the reliability of China's internal combustion engine products is not high. The main reason for the low-end market.
For the national four diesel engines with more stringent technical requirements, the requirements for the matching components are also higher, especially in terms of reliability. This brings new challenges to internal combustion engine parts and components, standardizes various technical regulations, adopts common and mature technical routes, and raises relevant industry standards to promote the reliability improvement of internal combustion engines, which has become a concern in the industry.
Upgrade country 4 is a challenge
For the implementation of the State IV, it has brought new challenges to the internal combustion engine parts and components enterprises. Lu Zhuohua, deputy general manager of Dongfeng Cummins Engine Co., Ltd. said: "Energy saving and emission reduction requirements increase engine combustion efficiency, cylinder pressure, heat load and injection pressure. These are challenges to the reliability of internal combustion engines, requiring internal combustion engines in the development process, in new materials. There is a significant increase in applications, component tolerance, high mechanical loads, thermal loads, and friction and wear capabilities."
The implementation of Guosi not only has more technical requirements in the research and development of internal combustion engines, but also puts forward higher standards in the process of manufacturing, and the requirements for processing technology and processing precision are getting higher and higher. At this stage, China faces the late start of diesel engine emissions treatment research and the rapid upgrade of emission standards. The reliability research requires a large amount of basic data, measured feedback and improvement. In the short term, R&D, reliability research and batch production process are completed. Development and rapid increase in production capacity are undoubtedly a huge challenge for domestic post-processing enterprises.
It is understood that Weichai, Yuchai, Xichai and Dongfeng commercial vehicles are actively exploring in the field of reliability technology application and have gained valuable practical experience. The research on the reliability of internal combustion engines is increasingly being studied by various scientific research institutions and universities at home and abroad. In-depth and many phased results have been achieved, which have greatly promoted the research and application of reliability technology in the internal combustion engine industry.
The engine core components are characterized by high reliability, durability and high precision. The engine main engine factory will consider the supplier's historical experience, research and development innovation capability, production guarantee capability, quality assurance capability, cost control capability, financial status and many other aspects. Elements to target suppliers. Before parts are used in the engine manufacturing, they need to go through manual test, performance test, tooling sample, bench test, environmental test, vehicle road test, small batch and mass production, etc. Around the year, its development and verification process requires a lot of manpower and capital costs. Therefore, the industry's distinctive features are: the supplier's fixed-point selection is very cautious, and the cooperation between the component supplier and the engine plant is stable once it is determined.
At present, in the domestic market, some engine parts with low technical content, low added value and high transportation cost have basically achieved localization; but for hydraulic tappets, hydraulic tensioners, rocker arms and variable Engine core components such as valve systems, well-known automobile host manufacturers have adopted the principle of cautious localization in order to ensure the successful development of products and reliable quality. With the improvement of the product quality and technical level of domestic domestic enterprises, we have gradually started to purchase from domestic domestic enterprises.
Internal combustion engine remanufactured into a hot spot
The national four diesel engine is more expensive than the previous engine, and the technology is more advanced, which is why the value of remanufacturing in the national four diesel engine is even higher. Not long ago, the China Internal Combustion Engine Industry Association held a conference on the promotion of the "internal combustion engine remanufacturing promotion plan". Representatives from more than 20 provinces and municipalities have participated in the meeting. According to the promotion plan, by the end of the "Twelfth Five-Year Plan", the production capacity, enterprise scale, and technical equipment level of the internal combustion engine industry will be significantly improved. The entire industry will form a production capacity of 350,000 units of various internal combustion engines.
Remanufacturing of internal combustion engines refers to the centralized dismantling of internal combustion engines, parts cleaning, inspection and classification, and the service life and power of internal combustion engine products after remanufacturing after remanufacturing according to the requirements of the original new product technical specifications. The indicators of sex, economy, environmental protection and reliability are not lower than the standard requirements of the prototype machine.
It is understood that compared with the traditional waste metal recycling and disposal methods, remanufacturing can recover about 70% of the added value of end-of-life products; compared with the original manufacturing, remanufacturing can save energy consumption by 80% and save materials by more than 70%. Reduce manufacturing costs by 30% to 50%; remanufacturing of internal combustion engines can not only reduce waste, but also have considerable environmental benefits, and energy saving and material saving, economic and social benefits are also significant.
Yang Tiesheng, deputy director of the Department of Energy Conservation and Comprehensive Utilization of the Ministry of Industry and Information Technology, said that after years of accumulation, China has stepped into the peak period of scrapping of mechanical and electrical products. If it is self-sufficient in the traditional production and consumption mode of “mass production, mass consumption, mass abandonmentâ€, it will not be realized. Recycling of used products will make resources, energy and the environment unsustainable. This requires us to seek a sustainable production and consumption model, accelerate the development of industrial recycling, to break energy resources constraints and ease the pressure on the ecological environment.
Xing Min, executive vice president and secretary general of China Internal Combustion Engine Industry Association, said that the internal combustion engine industry is an important basic industry in China, with a long industrial chain, high correlation, wide employment, and large consumption. The internal combustion engine has a large amount of use, a wide range, and high thermal efficiency. It is currently the most efficient mobile power machine that humans can master. Like the automobile industry, as a major manufacturer of internal combustion engines in the world, the wide application of internal combustion engine products and the sustainable development of the manufacturing industry are crucial to safeguarding national security and the healthy development of the national economy.
In November last year, the Ministry of Industry and Information Technology issued the "Engineering Remanufacturing Plan for Internal Combustion Engines", proposing a goal of significantly improving the remanufacturing capacity, enterprise scale, and technical equipment level of the internal combustion engine industry at the end of the "Twelfth Five-Year Plan" period.
The plan clarifies that in the internal combustion engine and key parts remanufacturing demonstration projects, remanufacturing demonstrations are mainly carried out in the fields of medium and heavy commercial vehicle engines and passenger car engines. In the demonstration project of remanufacturing of key components, the demonstrations are mainly carried out in the fields of supercharger, generator, starter, oil pump, fuel pump and water pump.
By the end of the "Twelfth Five-Year Plan", the entire industry has formed a production capacity of 350,000 units of various internal combustion engines. Establish a number of demonstration projects for internal combustion engine remanufacturing of passenger vehicles, medium and heavy commercial vehicles, construction machinery, agricultural machinery, power generation equipment, ship power, petroleum machinery, railway locomotives, etc.
There is room for improvement in spare parts
Due to the influence of the light-duty components of heavy-duty vehicles and the introduction of light autonomy, China's auto industry has not been able to develop in parallel with the auto industry for a long time. At present, in the domestic automobile market, foreign capital (of which 55% are wholly foreign-owned enterprises and 45% are joint ventures) control the market share of key auto parts of more than 70%, and mainly concentrate on the non-key parts market.
It is also because the development of local parts and components enterprises is relatively lagging behind, it is difficult to open the market in the international market and enter the overseas automobile industry chain. Moreover, many domestic automobile manufacturers, most of them are joint ventures with foreign countries, and local brands such as parts and components are also facing difficulties in entering the market.
Especially in the field of internal combustion engine parts and components, at present, the key core technologies and core component assemblies of the domestic engine parts industry are mostly owned by large foreign auto parts companies. Most of the domestic independent brand engine parts companies still have low production technology. Mainly labor-intensive products with low added value. The lack of core technologies, insufficient R&D investment, poor independent innovation capability, backward management, and fewer skilled workers have restricted the development of China's domestic engine parts enterprises.
Although China has become the world's largest automobile production market and consumer market, with the diversification and individualization of the consumer market, China's automobile market has gradually turned into a buyer's market, and market competition will become increasingly fierce. In the long run, the continuous decline in vehicle prices will be an irreversible trend, and the overall price of a single model will also decline.
Affected by the cost reduction of OEMs' price reduction, the single-type parts and components will face continuous price reduction pressure. Therefore, the parts suppliers must cope with the pressure of price reduction by continuously improving production efficiency, reducing costs and expanding production and sales scale. At the same time, we will continue to introduce new products and new models through simultaneous R&D and advanced research and development to expand new profit growth points.
Therefore, we will increase investment in research and development, learn to introduce advanced design and processing technologies from abroad, especially in the upgrading of high value-added and high-tech engine products such as the State IV, and gradually develop and develop complementary products with independent intellectual property rights. China's engine parts industry will have more room for development.
Abstract The national standard for internal combustion engines will be officially implemented on January 1 next year. At present, the internal combustion engine of the national standard has gradually withdrawn from the market. At the same time, the quality of the components matching the National IV engine will become the key to whether the National IV diesel engine can guarantee normal work. A few days ago,...
The internal standard of the internal combustion engine will be officially implemented on January 1 next year. At present, the internal combustion engine of the national standard has gradually withdrawn from the market. At the same time, the quality of the components matching the National IV engine will become the key to whether the National IV diesel engine can guarantee normal work.