Hydraulic Pump classification:Pneumatic Hydraulic Pump & electric hydraulic pump & manual hydraulic pump
pneumatic hydraulic pump classification as below:
1. Foot operated pneumatic hydraulic pump
2. Wireless Remote Control Pneumatic Hydraulic Pump
3. Wired Remote Control Pneumatic Hydraulic Pump
4. Double acting pneumatic hydraulic pump
5. Two-speed double-acting pneumatic hydraulic pump
6. Two-speed double-acting pneumatic hydraulic pump (large displacement)
7. Two-speed single-acting pneumatic hydraulic pump
Hydraulic Pump,Hydraulic Hand Pump,Air Hydraulic Pump,Air Driven Hydraulic Pump Yantai Dongyue Hydraulic Technology Co., Ltd , https://www.deeleap.com
In order to make up for this short board as soon as possible, the state has been increasing the research and development of aviation engines. Today, the aviation industry continues to expand and is constantly narrowing the gap with world-class engines.
Aeroengine is one of the most complex, multidisciplinary integrated engineering machinery systems in the world. The core component is single crystal blades. The seemingly thin parts deliver amazing power, and each blade's output is equivalent to a 2.0-displacement SUV. The production of single crystal blades is inseparable from a precious rare metal - strontium. In Chengdu Aerospace Superalloy Technology Co., Ltd., we saw the most critical metal in the production of single crystal blades - helium.
The aircraft engine temperature is as high as more than 1,700 degrees. Only the "铼" metal is not melted in the Langfang Science and Technology Park in Hebei. An aero engine designed for drones and business jets is undergoing a 150-hour test run to check the engine under various conditions. Comprehensive indicators of technical performance and reliability and longevity.
Zhu Junqiang, director of the Institute of Engineering Thermophysics, Chinese Academy of Sciences: After 150 hours, the first flight guarantee is no problem. You can go to different altitudes for test flight. This engine is basically shaped. 
In this 1000 kg thrust engine center, the core component is the 60 single crystal blades in front of the eyes. The engine compresses the air and presses it into the combustion chamber, causing intense combustion of the fuel in a limited space, producing a violent gas jet that pushes the blades to rotate at high speed, giving the seemingly thin parts an amazing power, each blade The output horsepower is equivalent to a 2.0-displacement SUV car.
In order to prevent melting, the engineer made each blade into a hollow, and also designed a sophisticated and complex cooling system. The heat removed by the cooling system can boil a pot of water in 1/20 second or even less. However, at a high temperature of 1,700 degrees, ordinary metals are not sufficiently heat resistant. The production of single crystal blades is inseparable from a precious rare metal - strontium.
In Chengdu Aerospace Superalloy Technology Co., Ltd., we saw the most critical metal in the production of single crystal blades - helium. This is the latest natural element discovered by humans. Because the discoverer is a German chemist, it is named after the Rhine. It is smaller in the earth's crust than all rare earth elements and more difficult to obtain than diamonds. According to the US Geological Survey, the world's proven reserves of cesium are only about 2,500 tons. The price of bismuth is similar to the price of platinum. One gram is about two or three hundred dollars.
The company that can purify base metals is the parent company of Chengdu Aerospace Superalloy Technology Co., Ltd., a listed mining company. In 2010, the company explored cesium in its mines in the Huanglongpu molybdenum mine in Luonan County, Shaanxi Province, with reserves of 176 tons, accounting for 7% of global reserves, second only to Chile, the United States, Russia and Kazakhstan. . In recent years, with the development of the aviation industry, the average annual growth rate of 铼 consumption is 3%. Although the price is high, it has been in a state of short supply.
In order to find more base metals, Chengdu Aerospace Superalloy Technology Co., Ltd., through cooperation with Hunan Nonferrous Metals Research Institute, solved the technical problems in more than a year and achieved the purification of cockroaches. However, with such scarce resources, Zhang Zheng and the shareholders found that this rare metal has almost no sales in China.
In desperation, they turned their attention to the international market and hoped to use the technology of resources for technology to seek cooperation with foreign alloy manufacturers.
Zhang Zheng, chairman of Chengdu Aerospace Superalloy Technology Co., Ltd.: Everyone wants to sign a long-term agreement with us. We only need to produce them, but because of this technology, all the companies in the country that master this single crystal technology are A law subject to the United States is not allowed to participate in technical cooperation.
The United States is the largest consumer of base metals, controlling the global sales market and has always been a monopoly. Since helium can be widely used in jet engines and rocket engines, about 80% of the world's helium is used in the production of aero engines, which is of great strategic importance. In order to maintain its dominant position in the aviation industry, the United States and other Western countries have imposed material and technological blockades against China for many years. Although the British aviation engine giant Rolls-Royce invested in China, it has set up defenses for Chinese employees. Even at the time, Song Yang, who had been working in the company for seven years, never had access to its core technology.
Song Yang, deputy general manager of Chengdu Aerospace Superalloy Technology Co., Ltd.: It has some areas that restrict Chinese people from entering. They do not want such technical secrets to be understood and mastered by China. I believe that this is not only for me personally, but for many Chinese who work in foreign aviation companies, they may experience such a rather embarrassing moment.
The more the blockade is, the more important the strategic importance of the aero engine is, and the more it needs to be broken. When Song Yang made this wish in Shanghai, in Xi'an, a thousand miles away, Zhang Zheng, chairman of the mining company, made an important decision: he produced his own single-crystal turbine blades for aero engines.
Zhang Zheng, chairman of Chengdu Aerospace Superalloy Technology Co., Ltd.: I want to find a way to solve this technology, because I don’t want to be a supplier of only one element, and such a rare element, we supply it to these overseas companies, and It does not help China.
Private enterprises enter the first mass production of single crystal blades in China's aviation industry On July 22, 2015, the first batch of products of Chengdu Aerospace was released, and the pass rate was amazing.
In 2016, the test report issued by the international authoritative third-party testing organization showed that the test results of the single crystal blade sent by Chengdu Aerospace Superalloy Technology Co., Ltd. in high temperature tensile properties and high temperature durability performance are in line with European and American standards. Chengdu Aerospace has also become the first company in China to achieve the mass production rate of single crystal blades.
Song Yang: With so many years of experience in China, all foreign countries have blocked China and rely on our own self-reliance and hard work. We can all make breakthroughs in this field.
Single crystal blades have been in production for just a year, and some production details are still improving. Each piece of unacceptable blade is a valuable sample that provides a valuable reference for the improvement of process details. According to the results of electron microscopy analysis, Song Yang intends to replace the defects used in the casting process when re-manufacturing the blades.
After the process is improved, it takes one and a half months to manufacture a batch of such single crystal blades through the layering process. Because of the particularity of the aviation industry, and longer than the production cycle, it is the time required to open the market. 
Super metal extraction technology made a breakthrough in China
Abstract Aeroengines have long been a shortcoming in China's aviation industry. At present, some military aircraft in China still use foreign engines. In the commercial aviation field, the engines used in the C-919 large jet passenger aircraft are also produced from a US-French joint venture. In order to get started soon
Aeroengines have long been a shortcoming in China's aviation industry. At present, some military aircraft in China still use foreign engines. In the commercial aviation field, the engines used in the C-919 large jet passenger aircraft are also produced from a US-French joint venture.