Machine tools are the foundation of manufacturing, and CNC systems are more called "brains" in machine tools. It represents the level of industrial development of a country and is also the embodiment of the country's comprehensive strength.
For some time, there have been many gaps in CNC machine tools in China, and even about 70% of products depend on imports. However, in recent years, a number of enterprises such as Huazhong CNC, Shenyang NC, and Dalian CNC have emerged in China, and through independent innovation, China’s “brain†has been developed to equip China.
"The numerical control system is related to the national industrial security and even national defense security. Its core technology is how much it costs to buy. Therefore, the only way out for China's numerical control industry is to take the road of independent innovation and use the Chinese core technology. Revitalize China's CNC industry." Yu Chengting, executive vice president of China Machine Tool Industry Association.
At present, China has become the world's largest machine tool consumer and CNC machine tool importing country, and CNC system is an important part of CNC machine tools, its cost accounts for 30% to 50% of the total machine tool cost. Statistics show that about 90% of the domestic high-end CNC system is occupied by overseas CNC companies.
It is estimated that by 2010, there will be more than 100,000 sets of CNC systems in the country. If China's CNC machine tools are all equipped with foreign CNC systems, about half of the sales of CNC machine tools are for the promotion of CNC systems abroad.
"China's CNC companies have the confidence and ability to break the monopoly and technical barriers of foreign companies, and use the Chinese 'brains' we developed to equip the Republic's head-office equipment and break through foreign blockades," said the head of Wuhan Huazhong CNC Co., Ltd.
Huazhong CNC took the technical route of “Using General Industrial Microcomputer as Hardware Platform†and realized the breakthrough of CNC system technology through the innovation of software technology. Using universal industrial computers and electronic devices, we have independently developed a 4-channel, 9-axis linkage "Huazhong 1" high-performance CNC system that breaks the foreign blockade and reached the international advanced level.
On the basis of this innovation, Huazhong CNC has realized the development and commercialization of the independent intellectual property rights and cost-effective Century Star series CNC system products, and has produced and sold nearly 10,000 sets of various medium and high-grade CNC systems. At present, Huazhong CNC has become one of the few enterprises in China that has independent intellectual property rights for complete sets of core technologies and has formed independent supporting capabilities.
"Compared with developed countries, we are accelerating the pace to catch up. Some products have been successfully developed and even panicked by foreign counterparts, not only breaking their long-term monopoly in the domestic market, but also forcing them to lower the price of their products." Yu Cheng Ting said.
China's machine tool industry started in the "6th Five-Year Plan" period. After decades of introduction, digestion and absorption, many enterprises have already possessed the ability of product innovation and gradually narrowed the gap with Western countries. Some companies have designed and produced CNC machine tools with independent intellectual property rights and world-class standards.
1. Components of piston rod seal:
Polyurethane, polyformaldehyde, rubber
2. Purpose and function of piston rod seal:
The rod seal belongs to the dynamic seal. It is the seal that moves with the piston rod. It is one of the important components on the hydraulic support.
3. Use position of piston rod seal:
Guide sleeve, piston
4. Working principle of piston rod seal:
It is used at the contact part between the guide sleeve and the outer cylinder to seal the emulsion in the outer cylinder.
5. What effects will be caused by improper use or operation of piston rod seal:
1. Improper selection of cavity support material will wear the cavity and piston rod.
2. The size of the friction pair is inappropriate, causing wear.
3. Improper thread guide angle of cylinder barrel and piston end wear the sealing ring.
4. The seal ring is worn due to improper installation guide angle of the seal.
5. The surface of cavity and piston rod is rough, with scratches and worn seals.
6. The outer cylinder leaks and the jack does not maintain pressure.
Piston Rod Seal,Hydraulic Cylinder Rod Seal,Pneumatic Rod Seal,U Ring Seals,Hydraulic Seals
DG Zhongxingshun Sealing Products Factory , https://www.zxs-seal.com