scholarly journals Characteristics, Industrial Application, and Prospects of Continuous Extrusion Technology

2019 ◽  
Vol 1 (1) ◽  
Author(s):  
Hongjiang Pan ◽  
Yi Zhong ◽  
Zhihao Zhang ◽  
Chengmin Pan
Keyword(s):  
Industrial Application ◽  
Industrial Production ◽  
Energy Savings ◽  
Ferrous Metal ◽  
Automatic Production ◽  
Continuous Extrusion ◽  
Thin Walled ◽  
Material Utilization ◽  
Extrusion Technology ◽  
Development Prospects

At present, continuous extrusion technology is applied in the industrial production of traditional non-ferrous metal profiles, composite profiles, and thin-walled hollow profiles, such as pipes, belts, wires and rows. This technology yields energy savings, high material utilization rates, automatic production, large manufacturing-product lengths, labor savings, and requires small floor space. The present paper introduces the characteristics of continuous extrusion technology and some industrial application examples, and focuses on the development prospects of multi-blank multi-round continuous extrusion technology.

Industrial Application of Pb–Ag–Ca Anode with Surface Passivation for Zinc Electrowinning

2014 ◽  
Vol 941-944 ◽  
pp. 1398-1401
Author(s):  
Jian Huang ◽  
Yuan Fa Ding ◽  
Xiang Dong Su ◽  
Yong Li ◽  
Yong Sheng Xiong ◽  
...  
Keyword(s):  
Corrosion Resistance ◽  
Surface Treatment ◽  
Industrial Application ◽  
Industrial Production ◽  
Surface Passivation ◽  
Production Costs ◽  
Zinc Electrowinning ◽  
Alloy Anode ◽  
Detection And Tracking

The Pb–Ag–Ca alloy anode with surface passivation was applied in industrial production of zinc electrowinning. The application situation was investigated by detection and tracking more than 3 months. The results were analyzed by comparison with the data acquired from the production using the reference anodes without surface treatment. The results showed that using the anode with surface passivation can increase zinc yield, reduce Pb content in zinc product, prolong the anode life by improving the corrosion resistance, and then reduce the production costs.

Discussion on NC Machining Process of Thin Walled Parts Technical Measures

2014 ◽  
Vol 701-702 ◽  
pp. 864-868
Author(s):  
Da Lin Zhang ◽  
Ke Gao ◽  
Tian Rui Zhou
Keyword(s):  
Industrial Production ◽  
Nc Machining ◽  
Machining Process ◽  
Precision Machining ◽  
Thin Wall ◽  
Machining Precision ◽  
Thin Walled ◽  
Technical Measures

Thin wall parts are used more and more extensively in industrial production, analyze the influence of precision machining of thin-walled parts not higher factor, through the example of how to improve the machining precision of thin-wall parts, and gives the specific measures to solve practical problems.

scholarly journals Improvement of Manufacturing Technology for Thin-Walled Pipes Made of Copper Alloys

2018 ◽  
Vol 918 ◽  
pp. 140-144 ◽  
Author(s):  
Aleksandr Aleksandrovich Bogatov ◽  
Denis Rinatovich Salikhyanov ◽  
Aleksandr Sergeevich Ovchinnikov
Keyword(s):  
Surface Defects ◽  
Scientific Evidence ◽  
Copper Alloys ◽  
Ferrous Metal ◽  
Dimensional Accuracy ◽  
Quality Characteristics ◽  
Labor Input ◽  
Instrument Making ◽  
Thin Walled ◽  
Gost State Standard

Thin-walled pipes made of copper alloys – the brass grades L96, L68, L63, LANKMc; the bronze grade BrOF (the GOST state standard) are of great demand in aircraft, shipbuilding, automotive, defense, diesel and instrument-making industries. Pipe diameter ranges between 4.0 and 20 mm, and wall thickness is in the range from 0.1 to 0.6 mm. The manufacture of these pipes using traditional technological schemes is characterized by high labor input and low stability in providing quality characteristics, such as dimensional accuracy, the presence of surface defects and the level of mechanical properties. This study presents scientific evidence, new technological schemes developed for manufacturing pipes made of copper alloys with the use of the equipment and technology of multiple drawing on a long movable mandrel and results of their adoption at Revda Non-Ferrous Metal Processing Works JSC.

APPLICATION OF HIGH-TECH ALUMINUM ALLOY V-1341 OF Al–Mg–Si SYSTEM FOR PIPELINES OF AIRCRAFT PRODUCTS

2020 ◽  
pp. 21-30
Author(s):  
I. Benarieb ◽  
◽  
V.A. Romanenko ◽  
Yu.Yu. Klochkova ◽  
V.V. Ovchinnikov ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
Aluminum Alloy ◽  
Technological Process ◽  
Industrial Production ◽  
Air Conditioning ◽  
High Tech ◽  
Thin Walled ◽  
Cold Worked ◽  
Air Conditioning Systems

In this paper a task in developing of industrial production of cold-worked thin-walled tubes from high-tech aluminum alloy V-1341 of Al–Mg–Si system was accomplished. Tubes are purposed for application in hydraulic and air conditioning systems of aircraft products. Results of investigation of the structure and mechanical properties of tubes during their technological process and heat treatment are presented. Forming of tubes was performed and construction elements of pipelines were produced, which are identical to pipelines of commercial airplanes.

Research of Vision Detection System Based on Regional Morphology

2013 ◽  
Vol 415 ◽  
pp. 357-360
Author(s):  
Hui Yu Xiang ◽  
Jia Jun Huang ◽  
Baoan Han ◽  
Zhe Li
Keyword(s):  
Working Condition ◽  
Detection System ◽  
Single Chip ◽  
Single Chip Microcomputer ◽  
Automatic Production ◽  
Serial Port Communication ◽  
Gradual Development ◽  
Method Of Production ◽  
Vision Detection ◽  
Development Prospects

With the gradual development of industrial technology, visual measuring technique has been widely used in industrial field. In the automatic production, it is used in the analysis of objects characteristics, the detection of working condition and the control of quality. This paper mainly studies how the machine vision theory is applied in the practical detections, and develops the overall visual detection platform. It uses the serial port communication between VC++6.0 and Single-Chip Microcomputer to control the experimental platform. In order to realize to test the production defects, it uses the knowledge of mathematical morphology to put forward a defect detection method of production image based on regional morphology. It can realize to simulate actual production line, and has a certain development prospects for real-time detections of product quality.

scholarly journals Metals for Fuels? The Raw Material Shift by Energy-Efficient Transport Systems in Europe

Resources ◽  
2018 ◽  
Vol 7 (3) ◽  
pp. 49 ◽  
Author(s):  
Jens Teubler ◽  
Sebastian Kiefer ◽  
Christa Liedtke
Keyword(s):  
Energy Efficiency ◽  
Energy Efficient ◽  
Energy Savings ◽  
Ferrous Metal ◽  
Precious Metals ◽  
Raw Material ◽  
Transport Systems ◽  
Transport Sector ◽  
Low Carbon ◽  
Efficient Transport

The long-term transition towards a low-carbon transport sector is a key strategy in Europe. This includes the replacement of fossil fuels, modal shifts towards public transport as well as higher energy efficiency in the transport sector overall. While these energy savings are likely to reduce the direct greenhouse gas emissions of transport, they also require the production of new and different vehicles. This study analyses in detail whether final energy savings in the transport sector also induce savings for material resources from nature if the production of future vehicles is considered. The results for 28 member states in 2030 indicate that energy efficiency in the transport sector leads to lower carbon emissions as well as resource use savings. However, energy-efficient transport sectors can have a significant impact on the demand for metals in Europe. An additional annual demand for 28.4 Mt of metal ores was calculated from the personal transport sector in 2030 alone. The additional metal ores from semiprecious metals (e.g., copper) amount to 12.0 Mt, from precious metals (e.g., gold) to 9.1 Mt and from other metals (e.g., lithium) to 11.7 Mt, with small savings for ferrous metal ores (−4.6 Mt).

scholarly journals Applicability of thin-walled structures for energy-savings in steel construction

2019 ◽  
Vol 91 ◽  
pp. 02042
Author(s):  
Natalia D. Korsun ◽  
Daria A. Prostakishina
Keyword(s):  
Cross Section ◽  
Energy Savings ◽  
Effective Characteristics ◽  
Geometric Imperfections ◽  
Thin Walled Structures ◽  
Steel Construction ◽  
Full Cross Section ◽  
Initial Geometric Imperfections ◽  
Thin Walled ◽  
The Cross

The paper discusses the use of lightweight thin-walled structures which make it possible to save resources in steel construction. The highlighted challenges that this industry face in the Russian Federation involve insufficient development of the domestic standards. A thin-walled sigma-profile element with 300 mm in a section height has been studied. The element, its design diagram and loading have been chosen taking into account the structural performance of the columns and girders involved in CFS frameworks. The paper presents analysis technique for a thin-walled profile which performs under axial compression and axial bending compression. The structures have been calculated taking into account their main feature - the initial geometric imperfections. The analysis of the changed effective characteristics and stresses in the cross-section has revealed the significant influence of the initial geometric imperfections of the profiles and location of the extra eccentricity against the element’s initial curvatures. The elastic-plastic behaviour of material occurs when the stresses in the full cross-section achieve 0.71 Ryignoring the initial geometric imperfections, and 0.58 Ry– with regard to them. The paper substantiates the need to consider unevenness of the mechanical properties of steel distributed over the cross-section of the profile. Based on the experimental data obtained, conclusions have been drawn on the necessary adaptation of the indirect method for evaluating the strength characteristics of thin-walled samples.

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