Development of pneumatic components，The expansion of application of pneumatic technology is the development of pneumatic industry
A smaller, lighter weight and lower power consumption. In electronics, pharmaceuticals and other manufacturing industries, the processing volume is very small, it will limit the size of pneumatic components, miniaturization, light is the first development direction of pneumaticcomponents. An ultra small solenoid valve with a thumb size and an effective cross sectional area of 0.2mm2 has been developed abroad. It is more ideal to develop components with smaller size and larger flow. To this end, the same size of the valve, the flow has increased 2~3.3 times. There is a series of small solenoid valve, its body width is only 10mm, the effective area of up to 5mm2; wide 15mm, effective area of 10mm2.Electromagnetic valve power consumption abroad has reached 0.5W, will be further reduced to adapt to the combination of microelectronics.The gas source treatment assembly mostly adopts the block type block structure at home and abroad, which is not only compact in size, but also convenient in combination and maintenance.The positioning accuracy of the actuator is increased, the rigidity is increased, the piston rod is not turned, and the use is more convenient. In order to improve the positioning accuracy of the cylinder, the application of the cylinder with the brake mechanism and the servo system is becoming more and more common. The cylinder with servo system can still get the positioning accuracy of + 0.1mm even if the supply pressure and the load change.
The expansion of application of pneumatic technology is the sign of pneumatic industry development. The application of pneumatic components mainly includes two aspects: maintenance and matching. In the past, the sales of domestic pneumatic components were used for maintenance, and in recent years, the sales share directly as the main supporting parts increased year by year. The use of domestic pneumatic components, from tens of thousands of dollars worth of metallurgical equipment to only 1~2 hundred yuan chair. Railway switches, locomotive wheel rail lubrication, train brake, street cleaning, hoisting equipment in special workshops, military command vehicles, etc., have been specially developed domestic pneumatic components. This shows that pneumatic technology has penetrated into all walks of life and is expanding.Although China's pneumatic industry has reached a certain scale and technical level, but compared with the international advanced level, the gap is great. China's output value of pneumatic products accounted for only 1.3% of the world's total output value, only the United States 1/21, Japan's 1/15, Germany's 1/8. This is out of proportion with the big country of about 1000000000 people. From a variety point of view, a Japanese company has 6500 varieties, China has only its 1/5. Product performance and quality level gap is also great.The pneumatic technology is increasingly applied in the automatic assembly of various industries and automatic processing of small, special items of equipment, the original traditional pneumatic components is increasing, and continue to develop new products to meet market demand, the variety of pneumatic components is increasing, the trend of its development are mainly in the following aspects:
