e5

	Journal "Svarochnoe Proizvodstvo"	ISSN 0491-6441
	Contents (�5 2014)
to russian

SCIENTIFIC-TECHNICAL SECTION

Khodakov V. D., Danilov A. I., Khodakov D. V., Praliev D. A., Abrosin A. A., Gutorov D. A. � Research and development of the automatic Du-850 pipeline argon-arc narrow-gap welding processes for reactor coolant pipe in nuclear power plant with water-water power reactor

The article describes research and development of an automatic argon-arc narrow-gap welding processes for the reactor coolant pipe Du-850 in nuclear power plant with water-water power reactor. An automatic welder and welding wire ��-10�1��1�� were used to carry out welding. The authors have performed metallurgical studies and identified mechanical properties of the welded joints.
Key words: automatic argon-arc welding, pipeline, narrow-gap welding, properties of the weld

Lebedev V. A., Maksimov S. Yu., Zhernosekov A. M., Saraev Yu. N. � Weld seam geometry control by hardware at mechanized and automatic metal arc welding

The article presents research results of a possibility to control weld metal geometry in structural steels at pulsed MIG welding and at welding with consumable electrode pulsed feeding.
Key words: arc welding, mechanized equipment, automatic machines, pulsed arc process, pulsed feeding, seam geometry, control

Zharikov S. V., Grin� A. G. � Slag study at surfacing by exothermal flux cored wires

In article describes the structure of slags rutile-carbonate-fluorite system formed by overlay metal type 8�3��2�. The influence of the exothermic mixture in the core self-protective powder wire on the composition and structure of the slag is investigated. For identification of phase structure the x-ray and mass spectral analysis, metallographic researches was used. In the structure of slag formed by overlay self-protective exothermic powder wire, established the presence of complex compounds and aluminates, the presence of which has an effect on the change of dicalcium silicate, which is good for the separation of slag.
Key words: surfacing, self-protective powder wire, slags, exothermic mixture, structure, oxides

Sidlin Z. A. � Corrosion resistance study of the nickel-iron alloys� welded joints

The articles covers research results of the influence of chromium which determines corrosion resistance. Its content in the samples of the added metal in �K77 alloy was varied within 21,1�28,8 per cent. Optimum ratio of alloying elements (chromium, copper, manganese and silicon) was established. The obtained corrosion resistance data is based for welding electrodes to be updated.
Key words: electrode, added metal, alloying element, chromium

Lyushinsky A. V., Nikolich Ye. V., Zhloba A. A., Kharkovsky S. V., Borovsky A. V., Karyaka D. S. � Diffusion welding of the nickel-based high-temperature alloys

The article considers features of high-temperature alloys� diffusion welding to estimate possibility and prospects of its application in aircraft propulsion engineering.
Key words: diffusion welding, high-temperature alloys, welding mode, interlayer

Pashkov I. N., Kustova O. V. � Special features of tubeless heat exchanger soldering techniques by the paste PPVS-3 Malakhit

The authors show soldering techniques features when manufacturing tubeless heat exchanger using the paste on the basis of hydrocarbonate copper salt "Malakhit".
Key words: soldering, paste, heat exchanger, leak, corrosion test

PRODUCTION SECTION

Dedyukh R. I. � Special features of consumable electrode plasma-arc welding process: A review

Physical and process features of the plasma-arc consumable electrode welding are generalized. The author describes equipment aufbau principles and gives examples of its industrial application. Advantages of this process are compared to those of the metal arc welding. The article shows prospects of the further development of plasma-arc consumable electrode welding.
Key words: plasma welding, consumable electrode, hybrid technology, plasmatron, drop metal transfer, seam formation, quality, welding rate, efficiency

Bychkovsky S. L., Toporov I. B., Kudryashov N. O., Pavlov E. M. � Arc surfacing current technology of the piping accessories, mining shaft equipment and of propulsion systems

The article presents TIG Hot Wire (THW) surfacing processes and CMT to obtain high quality products.
Key words: arc surfacing, deposition rate, inert gas, quality

Kazakov Yu. V., Tabakin Ye. M., Ivanovich Yu. V., Miroshnichenko G. V., Kaplin A. V. � Influence of heating conditions on the weld formation at fusion welding of small-sized nuclear engineering produce

The paper considers peculiar effects of small-size items fusion welding on the quality of welded joints. A definition of a "small-size item" is given with the account of the welded joint quality criteria. It is shown that the weldability of small-size items can be improved by limiting thermal effect on the welded zone. The paper presents some engineering developments on the application of the TIG welding and pulsed laser welding to limit the thermal effect on the small-size items.
Key words: small-size items, remote welding, welded joint quality criteria, thermal effect, grain size

Shibalov M. V., Kurkov A. A., Rozhkova T. V., Maslov A. Ye. � Method of arc welding defect repair

This article describes use of resistance spot welding for remount of TIG-joint weld defects.
Key words: TIG-welding defects, resistance spot welding, remount

Medvedev A. Yu., Pavlinich S. P. � Tensile test of titanium alloys welds, carried out by seam friction welding

The authors offer a tensile testing technique of the joints obtained by seam friction welding. This technique differs from the ones used previously by the samples� shape and by the criterion of the estimated results of tests. It is shown that when upset values are small the fracture is brittle. If the upset growth at welding it causes changes in appearance of fracture, area of fracture and stress-strain diagram. Ultimate welded strength in the process increases insignificantly, at the same time expended plastic work of deformation applied to rupture the samples increases by a factor of ten.
Key words: seam friction welding, binary titanium alloy, welded strength, tensile test, weld quality

EDUCATION & PERSONNEL TRAINING

Pavelyeva T. Yu. � Approaches to priority areas identification of research and education in engineering

The basic approaches to defining priorities for research and education in engineering. Internal and external factors affecting the formation of research and education in areas of mechanical engineering are examined.
Key words: scientific and educational direction, modernization of industry, priority areas of science and technology

BIBLIOGRAPHY

Contents of the foreign journals on welding

RF patents for the inventions in the field of welding

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