e10

	Journal "Svarochnoe Proizvodstvo"	ISSN 0491-6441
	Contents (�10 2014)
to russian

SCIENTIFIC-TECHNICAL SECTION

Kotelnikov A. A., Alpeyeva E. V. � Finite element method application when selecting welded structures material

The paper presents the investigation of the stress-strain state of welded I-beams from metals three categories: steel constructional low-alloy, high-alloy steels, aluminum alloys. In each category analyzed 4 material and selected 1 with the lowest estimated voltage characteristics. Composed of a method of creating new material in the material library SolidWorks.
Key words: finite element method, the allowable stress, welded construction

Lukin V. I., Bazyleva O. A., Kovalchuk V. G., Golev E. V., Khodakova E. A. � Investigation of the properties of VKNA-1VR (��-1��) intermetallic casting after defect correction by welding

TIG technological parameters and filler material have been selected; technological, mechanical, corrosion resistance properties, weld structure of intermetallic alloy VKNA-IVR have been investigated; also the possibility of repair welding of cast defects have been explored.
Key words: cast details, crack resistance, TIG, build-up welding, filler materials, casting defects, short-term durability, long-term durability, corrosion resistance, structure

Grigoryants A. G., Zvezdin V. V., Israfilov I. Kh., Portnov S. M., Perestoronin A. V. � Automatic control system for precision laser welding in engineering industry

The system of automatic control of control of a zone of the welding is developed, allowing during processing to make positioning of focus of laser beam concerning a joint of welded details without participation of the operator and to control temperature of a zone of processing.
Key words: laser, welding, photodetector, laser beam, joint control

Malakhov A. Yu., Perbukhin L. B., Saikov I. V., Vikhman V. B. � Production of high-strength bimetallic materials with a plated layer based on columbium and nickelcobalt alloys by explosion welding

This paper examines the characteristics of explosion welding of high-strength steel with erosion-resistant heat-resistant alloys. The article considers the problem of obtaining high-quality connections niobium and Nickel-cobalt alloys with steels. The authors developed the scheme cladding by explosion welding above alloys flat and cylindrical surfaces. Special attention was paid to the influence of the parameters of heated gas in the gap between the welded plates on the quality of the connection. In the work the results of experimental studies of the samples of bimetal, the results of which allowed the author to talk about the prospects for further research in this area.
Key words: welding by explosion, shock-compressed gas, the degree of ionization, thermodynamic conditions of thermodynamic parameters

Novosadov V. S. � Operability valuation of high-temperature steel heat exchangers brazed by multilayer composite braze of the Cr�Ni�Mn system

A technological process of soldering multilayer composite solder high-temperature heat exchangers of stainless, high-temperature and cryogenic steels 12X18H10T, 16 ANS and ANS 25. It is established that the distribution of elements solder Cr, Ni, Mn in the form of coatings eliminates problems with wetting, spread solder and naplavlenie the cooling channels of small cross section. Defined: the chemical composition of the solder, the optimal thickness of layers and sequence of their application to smooth and ribbed surface. It is established that the optimum mode of soldering (1150 �C, 30 min + homogenizing annealing of 1000 �C, 60 min) does not lead to a significant reduction of mechanical properties of steels. Corrosion and mechanical properties of solder meet the requirements for use. Connection Ravnopravye steel 12X18H10T. Technological process introduced in a number of responsible, large Assembly units. Mass production reduced by 30 %.
Key words: multilayer composite solder, cryogenic heat exchanger steel

PRODUCTION SECTION

Lastovirya V. N., Novokreschenov V. V., Rodyakina R. V. � Recovery of roller geometry and properties of bottom unloader by surfacing

This work is devoted to the development and realization of technology for reconstruction of geometry and properties of roller, having a considerable (up to 15 mm) work surface wear, in the device bottom unloading by means of surfacing. The main problem was the need to provide the required wear resistance of weld metal and its hardness HV10 not less than 500 mm2. For its solution the method of electric arc mechanized surfacing under the mixture of ceramic fluxes FKN-6 and OK 10.71 with using of melted electrode wire of solid section was used. Such com bination of fluxes provides the required degree of alloying of welded metal and, accordingly, the required level of mechanical properties. The process of surfacing by the proposed technology was realized during the reconstruction of experimental party of rollers with the subsequent test them in a real production.
Key words: electric arc surfacing; melted electrode wire; alloying flux; structure; phase transformations; hardness; wear resistance

Filippov M. A., shumyakov V. I., Balin S. A., Zhilin A. S., Lehchilo V. V., Rimer G. A. � Structure and wear resistance of the deposited alloys on the basis of metastable chrome carbonaceous austenite

Interrelation dependence of phase composition and structure properties with resistance under abrasive wear after quenching and subsequent tempering in wide temperature ranges of two surfacing alloys based on Fe�C�Cr was studied. Reducing of hardness with increasing of the heating temperature for quenching of the both alloys due by rising of amount of metastable retained austenite, whose ability to deformational-induced martensite transformation causes an increase of microhardness and wear resistance of the wear surface. Tempering after quenching reduces the hardness and wear resistance of the both alloys.
Key words: surfacing alloys, abrasive wear, quench and tempering temperaturea, metastable retained austenite, deformational-induced martensite, deformation hardening

Kolomeichenko A. V., Kuznetsov I. S., Kravchenko I. N. � Thickness and microhardness investigation of electrospark covering from amorphous and nanocrystalline alloys

The paper presents the study of thickness and microhardness electrospark coatings of amorphous and nanocrystalline alloys. Found that the use as electrode materials of amorphous and nanocrystalline alloys improves thickness electrospark coatings obtained with this coating possess a high microhardness.
Key words: electrospark deposition, electrospark coating, amorphous alloy, nanocrystalline alloy, thickness, microhardness

Popov V. S., Khavanov V. A., Khorev V. N., Guba S. V., Budkin Yu. V. � Automation of orbital welding at erection of high-duty equipment and pipelines

The results of research and development of equipment for the automatic position butt welding of pipelines of nuclear power plants. Designed and developed more than a thousand samples of equipment.
Key words: welding machine, automatic control system

Andreyev B. I., Guerasimov A. I., Starostin N. P. � Socket welding characterization at cold temperature

The results of determination of parameters of welding of polyethylene pipes PE 100 GAS SDR 11 63 is 5,8 using couplings with mortgage heater when the temperature is below the norm. It is shown that the socket welding with rated parameters provides in weld the same dynamics of the temperature field, as and when the permissible temperatures of the RC.
Key words: welding, polyethylene pipe, coupling, the temperature, thermal process, the ambient temperature, the welding parameters

Piskunov A. V., Biryukov A. P., Bardin A. I., Janikyan A. V., Romanov A. V., Nikitin S. V. � "Forsage-315 AC/DC" as an all-purpose inverter for argon-arc welding

The article presents technical specifications, main functions and modes of the new inverter welding unit "FORSAGE-315 AC/DC" which operates of three-phase electric mains or self-contained mobile power supply.
Key words: argon � arc welding, welding units, "Forsage", technical specifications

INFORMATION

Ivanov A. N. � Metalloobrabotka�2014

Ivanova N. L. � The 16th International theoretical and practical conference

BIBLIOGRAPHY

Contents of the foreign journals on welding

RF patents for the inventions in the field of welding

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