Which type of rubber hose is used for conveying on the shield machine?

Herrenknecht and Robinson's shield machines use HEDUFLEX multifunctional suction tubes, HEDUFLEX S D PN 16 bar

Shanghai Tunnel Engineering Co., Ltd. and China Railway Tunnel Equipment Manufacturing Co., Ltd., strictly speaking, these two units currently have the ability to independently design and manufacture shields. In terms of technology, Shanghai Tunnel Engineering Co., Ltd. is a little stronger, and they have the ability to design and manufacture large-scale slurry balance shields. It should be pointed out that the shield of Shanghai Tunnel Engineering Co., Ltd. did not imitate other types of shields at all, but only referred to the Japanese shield.

China Railway's shield is basically designed and restructured based on the Herrenknecht shield. The shield is a kind of large-scale electromechanical equipment, but it is not a complex electromechanical equipment, and everyone who has a little common sense of shield knows it. Therefore, the so-called shield technology is not a high-end technology, and it is not difficult for domestic enterprises to fully master its technology.

Sany and other enterprises will also begin to design and manufacture shields. Shenyang Heavy Industry Co., Ltd. cooperated with the French company Wirther (NFM) to produce Wirther shields, which basically means that the drawings designed by NFM were made in China. As of 2009, in addition to the tunnel and China Railway, the enterprises that manufacture shield tunnels in China are:

Herrenknecht, Mitsubishi, Komatsu, Beizhong, Ishikawajima, Kawasaki, Beijing Huatong, Rowit, Okumura, Hubei Tiandi Heavy Industries. By the way, I have been engaged in shield technology for many years, if you are interested, you can go to the ITBM forum to see, but do not flood or make meaningless replies, which will be immediately banned by the administrator.

1. Also known as flame retardant, fire refractory agent or fire retardant. Functional additives that confer flammability on flammable polymers. According to the application method, it is divided into additive flame retardant and reactive flame retardant.

The additive flame retardant is directly mixed with resin or rubber material, which is convenient for processing and has a wide range of adaptation, and is the main body of the flame retardant; Reactive flame retardants are often bonded into polymer chains as monomers, which have little impact on product properties and have a long-lasting flame retardant effect. According to the composition, the added flame retardants mainly include inorganic flame retardants, halogenated flame retardants (organochlorides and organic bromide), phosphorus-based flame retardants (red phosphorus, phosphate esters and halogenated phosphates, etc.) and nitrogen-based flame retardants. Reactive flame retardants are mostly monomers containing organohalides and organophosphorus containing reactive functional groups.

In addition, molybdenum compounds, tin compounds and iron compounds with smoke suppression effects also belong to the category of flame retardants.

It is mainly suitable for plastics with flame retardant needs, delaying or preventing the combustion of plastics, especially polymer plastics, so that the ignition time increases, the ignition is self-extinguishing, and it is difficult to ignite.

Generally, flammable polymer plastics such as PP, PA, PE, PS, ABS, EVA, PET, PBT and other flammable polymer plastics need to add flame retardants in special applications.

Flame retardants are currently mainly organic and inorganic, halogenated and non-halogen. Organic is bromine, nitrogen, red phosphorus and compounds as the representative of some flame retardants, inorganic is mainly antimony trioxide, magnesium hydroxide, aluminum hydroxide, silicon and other flame retardant systems.

Generally speaking, organic flame retardant has a good affinity, in plastics, brominated flame retardants occupy an absolute advantage in organic flame retardant systems, although there are many "criticisms" in environmental protection issues, but it has been difficult to be replaced by other flame retardant systems.

Among the non-halogenated flame retardants, red phosphorus is a good flame retardant, which has the advantages of low addition, high flame retardant efficiency, low smoke, low toxicity and wide use. Red phosphorus is compounded with inorganic flame retardants such as aluminum hydroxide and expanded graphite to make composite non-halogenated flame retardants such as magnesium phosphorus, aluminum phosphorus, and graphite phosphorus, which can greatly reduce the flame retardant dose, thereby improving the processing performance and physical and mechanical properties of plastic products. However, ordinary red phosphorus is easy to oxidize and absorb moisture in the air, which is easy to cause dust, difficult to transport, and poor compatibility with polymer materials, so the application range is limited.

In order to make up for this deficiency and expand the application range of red phosphorus, we have adopted the advanced microcapsule coating process from abroad to make it microencapsulated red phosphorus. In addition to overcoming the inherent drawbacks of red phosphorus, microencapsulated red phosphorus has high efficiency, low smoke, no toxic gas in processing, and its dispersion, physical and mechanical properties, thermal stability and flame retardant properties are improved and improved.

Haha, I am a student in the 09th grade of this major The answer given by the school is that the employment rate is 100% But I remember that a teacher made it clear that the employment rate of female students is not guaranteed We have 2 Huali safety engineering The one you mentioned belongs to the School of Mechanical and Power Engineering The main course is non-destructive testing and pressure vessels, which is suitable for boys, and the other safety engineering is affiliated with the School of Information and Environmental Protection, which is closely related to chemistry and is biased.

I'm sorry, I'm not from the Northwest Rubber Research Institute, and the treatment of this research institute unit should be good.

There is no problem with normal temperature and low temperature. High temperatures can cause it to release trace amounts of harmful substances.

Contains polycyclic aromatic hydrocarbons, carcinogens.

Taiyuan University of Technology is full of talents, and I am proud of them as a science and engineering student. Here are some of the celebrities from Polytechnic:

Xie Kechang, academician of the Chinese Academy of Engineering, expert in coal chemical engineering, and one of the pioneers in the field of coal chemical science and technology in China. He is currently a member of the Standing Committee of the National Committee of the Chinese People's Political Consultative Conference, vice chairman of the China Association for Science and Technology, deputy director of the Science and Technology Commission of the Ministry of Education, director of the Key Laboratory of Coal Science and Technology of the Ministry of Education, professor of Taiyuan University of Technology, professor of Tsinghua University, etc., and has served as a member of the Standing Committee of the National People's Congress, vice president of the Chinese Academy of Engineering, deputy director of the Standing Committee of the Shanxi Provincial People's Congress, and president of Taiyuan University of Technology.

Huang Qingxue, Director of the Foreign Affairs Department of Science and Technology, Director of the Graduate Office, Director of the Discipline Degree Office, Assistant to the Dean, Vice President of Taiyuan University of Science and Technology, etc.

He is currently the president of Taiyuan University of Technology. The scientific research team led by Professor Huang Qingxue, Yanshan University and Taizhong cooperated to overcome the "Research on the Life of Large Rolling Mill Bearings", developed a new mechanism and structure with the analysis method of heavy-duty mechanism, solved the problem of serious eccentric load of the load-bearing components of the large-scale rolling mill, improved its life and reliability, and won the second prize of the National Science and Technology Progress Award in 2003.

Yang Guangwen, Ph.D. supervisor, director of the Institute of High Performance Computing Technology, deputy director of the Academic Committee of the Department of Computer Science. At present, he is an expert of the overall group of the national 863 "high-performance computer and grid service environment" major project, and a consulting expert of the National Library. He has published more than 60 academic articles in domestic and foreign magazines and academic conferences, and won 2 second prizes of the National Science and Technology Progress Award, 1 second prize of the Ministerial Science and Technology Progress Award, the Zhongchuang Software Talent Award, and the Tsinghua University Young Teacher Teaching Excellence Award.

Feng HanpuHe was born on April 29, 1994 in Taiyuan City, Shanxi ProvinceA men's basketball player at Taiyuan University of Technology, serving as a center and power forward.

In 2015, he won the 17th team CUBA Northwest Division Championship, and in the same year, he won the individual 17th CUBA Northwest Division Slam Dunk Contest Championship. With his good looks and excellent ball skills, he has captured the hearts of a group of little fan girls.