China's bearing industry urgently needs technological breakthroughs to upgrade to high-end
Recently, China Bearing Industry Association revealed that China's bearing industry in 2010 sales revenue and profit growth are over 30%. However, the relevant person in charge of the China Bearing Industry Association stated that the pressure in the bearing industry will further increase in 2011, and the growth rate of the bearing industry will be somewhat slower, which is worth bearing company's attention. The head of a bearing company told the author that high-end equipment manufacturing represented by energy equipment is now at the peak of development. If we can leverage downstream industries such as energy equipment and achieve technological breakthrough in high-end bearings, it will greatly increase the level of development of the bearing industry.
"Twelfth Five-Year" March into High-End Bearings
According to the data from the China Bearing Industry Association, the income from the main business of the bearing industry in 2010 will exceed 100 billion yuan, reaching 120 billion yuan, and the growth rate will reach 30%. Among them, the demand for small bearings has greatly increased. It is estimated that the annual bearing output will reach 15 billion sets, an increase of 36.36% year-on-year.
It is understood that in 2010, the leading enterprises in the bearing industry in the country developed 528 kinds of supporting bearings for 106 major technical equipments in 13 key areas. The annual new sales revenue was 9.2 billion yuan, and the products reached the level of similar foreign products. Including the internationally advanced level of wind turbine yaw, variable pitch bearings, secondary pump bearings of nuclear power plants, high-power locomotive bearings, ultra-precision Sendzimir mill bearings, fan-shaped segment bearings of continuous casting production lines, and gradually realized industrialization.
According to the relevant personnel of the China Bearing Industry Association, during the “Twelfth Five-Year Plan†period, the focus of development is to significantly improve product quality and technology level, increase the market share of key bearings for main engines, and provide high-speed railway passenger car bearings, high-power wind power bearings, and precision CNC The market for high-end bearings such as spindle bearings and large aircraft bearings has entered the market.
Support localization of energy equipment
Wazhou Group technical personnel told the author that bearing is an important and key basic component in the equipment manufacturing industry. It directly determines the performance, level, quality and reliability of major equipment and host products, but China's high-end bearings such as high-speed and high-precision machine tools Bearings, energy supporting bearings, etc. currently rely mainly on imports.
One person in the industry gave an example to the author. Although China has a high-speed EMU technology with independent intellectual property rights, the domestic application of supporting bearings is still blank. At present, most of China's high-speed bearings can only meet the EMU 150-180 km, while high-speed iron bearings in Europe and the United States to meet the speed of 350-400 km per hour. Therefore, at present, high-speed rail bearings for EMUs with a speed of 200 kilometers per hour are basically imported.
In the field of energy equipment, bearings are also a key component that has caused major equipment to become localized.
A fan maker told the author that the harsh working conditions and long-life high-reliability requirements of wind power equipment have made wind turbine bearings with high technical complexity, and bearings and control systems are recognized as the two most difficult localization. Now the country vigorously develops new energy sources such as wind power, but domestic companies can not produce high-end wind power bearings, had to import bearings, can not stand the high prices, increase the cost of wind power equipment, but also restricted the decline in wind power costs.
There are similar situations in the field of hydropower equipment. It is understood that as one of the most critical components in a large-scale hydro-generator unit, the thrust bearing bears the weight and water thrust of the rotating part of the entire hydro-generator unit, and its working performance not only directly relates to whether the unit can operate safely, but also affects power generation. Unit output and efficiency. Therefore, large-scale thrust bearing technology is a key technology that must be solved for the development of a 1000 MW hydroelectric generating set. Fortunately, a domestic company has just recently overcome this difficulty.
In addition, deep-well drilling rig bearings, offshore drilling platform series bearings and other energy equipment bearings also need to master its core technology. An expert from the China National Machinery Industry Federation told the author that the improvement of the manufacturing level of components, including bearings, is the basis for the realization of localization and autonomy of major energy equipment.
Settle to solve the ills of the industry
A person from the Tianma Bearing Company told the author: "Although the pressure in the bearing industry is expected to increase further this year, the growth rate of the bearing industry will slow down, but it is mainly a structural demand adjustment, such as large-scale wind power bearings, etc. Energy equipment bearings can hardly be done by domestic companies, even if some of the bearings can be produced, there is a big gap with the well-known foreign companies in terms of cost-effectiveness, high precision, low noise, long life, and high reliability. In the breakthrough, domestic companies will have a lot of room for growth."
It is understood that the development of bearings and the main engine is not in sync with the industry. Due to the rapid development of high-end equipment, modern experimental methods such as bearing pedestal trials for various types of high-end equipment have been over-invested, which has led to slower progress in bearing research and development and the development of bearings has not kept pace with the development of the host.
In addition, the lack of industry standards is also very prominent. Some industry analysts believe that at present, China's high-speed rail, wind power and other bearings are all basically dependent on imports, in addition to the lack of core technical issues, an important reason is that high-speed rail, new energy industry demand for high-end bearings has not formulated the corresponding industry standards. This also restricts the development of high-end bearings.
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