Advanced Technology for Machining Tapered Threads of Pipe Coupling
Rasulov Nariman Mogbil,
Nadirov Ugurlu Muhammed,
Abbasova Irada Aziz,
Mammadov Arastun Salman,
Shabiyev Elgun Tagi
Issue:
Volume 5, Issue 2, April 2020
Pages:
35-40
Received:
4 December 2019
Accepted:
23 December 2019
Published:
28 May 2020
Abstract: Subject of research. In the oil industry, parts such as a coupling that have differently directed tapered threads are widely used. The coaxiality of these threads is an indicator of the quality of workmanship and determines the performance of threaded joints. Purpose of work. Improving the manufacturing capacity of the coupling and the accuracy of coaxiality of their differently directed tapered threads. Method. Processing of internal conic smooth and threaded surfaces is carried out in parallel from one and two ends of the coupling, with one installation and position. Implementation. The technology of processing the internal surfaces of the coupling with tapered threads on both sides is proposed, various processing schemes are proposed, a multivariate processing technology is given, the designs of some technological tools and equipment for the implementation of technological processes are proposed. The main results. Some of the proposed options were tested in production, in which all the inner surfaces of the coupling and the ends are processed from one end of the coupling, sequentially, with one installation and position, and gave good results. Practical significance. The machine time for processing conical smooth and threaded surfaces is reduced by more than 1.5 times, the accuracy of coaxiality of multidirectional conical threads is increased by about two times. Conclusion. Application of the proposed technologies, designs of elements of equipment and accessories for their implementation will increase the efficiency and manufacture and operation of parts such as couplings, including their tapered threaded joints.
Abstract: Subject of research. In the oil industry, parts such as a coupling that have differently directed tapered threads are widely used. The coaxiality of these threads is an indicator of the quality of workmanship and determines the performance of threaded joints. Purpose of work. Improving the manufacturing capacity of the coupling and the accuracy of ...
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Review on the Application of Food Nanotechnology in Food Processing
Mulugeta Wegari Dera,
Wondemu Bogale Teseme
Issue:
Volume 5, Issue 2, April 2020
Pages:
41-47
Received:
3 February 2020
Accepted:
24 February 2020
Published:
28 May 2020
Abstract: Nanotechnology is the manufacture, use of materials and structures at the nanometer scale (a nanometre is one millionth of a millimetre). It offers a wide range of opportunities for the development of innovative products and applications in food system. Food quality monitoring using biosensors- intelligent, active and smart food packaging systems; nano emulsions and nano encapsulation of bioactive food compounds are some examples of emerging applications of nanotechnology in the food sector. In food engineering, two major applications related to nanotechnology i.e. food Nano sensing and food nano structured ingredients are being expected. In the former field, better food quality and safety evaluation can be achieved by using nanotechnology. Various types of nano sensors are being developed to meet the different requirements in food inspection (nano sensors for detection of external and internal conditions in food packaging, carbon nanotubes based electrochemical sensors for detection of cations, anions and organic compounds in food, various aptamers for detection of pesticides, antibiotics, heavy metals, microbial cells and toxins). Nanotechnology applications in the food industry can be utilized to detect bacteria in packaging, or produce stronger flavors and color quality, and safety by increasing the barrier properties. However, in the pursuit of delivering patentable technologies, concerns over consumer health and safety in the use of nanoparticles in foods is an ongoing challenge.
Abstract: Nanotechnology is the manufacture, use of materials and structures at the nanometer scale (a nanometre is one millionth of a millimetre). It offers a wide range of opportunities for the development of innovative products and applications in food system. Food quality monitoring using biosensors- intelligent, active and smart food packaging systems; ...
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