CONTENTS

SCIENTIFIC AND TECHNICAL

• Paton B.E. Space technologies on the threshold of the third millenium ... 2
• Ishchenko A.Ya. and Chapor V.O. Weldability of high-strength alloys of Al-Zn-Mg-(Cu) system (Review) ... 5
• Razmyshlyaev A.D. Control of bead formation in arc surfacing with strip electrode ... 11
• Bolotov G.P. Peculiarities of heating parts of limited sizes in glow-discharge diffusion bonding ... 15

INDUSTRIAL

• Pilot Plant for Welding Consumables today ... 19
• Ryabtsev I.A., Kuskov Yu.M. and Chernyak Ya.P. Formation of deposited metal on inclined and vertical surfaces ... 22
• Dmitrik V.V. Structure of welded joints from low-alloyed heat-resistant Cr-Mo-V pearlitic steels ... 26
• Nesterenko N.P. Features of the technology of ultrasonic welding of axially symmetrical polyethylene containers ... 30
• Lebedev V.A. and Pichak V.G. A new approach to design of the electrode wire feed mechanism ... 33
• Lukash E.S., Shulym V.F., Grigorenko G.M., Smiyan O.D. and Neznamova L.O. Investigation of the influence of gravity on the composition of coatings from binary Ag-Cu alloys ... 37
• Tugolukov A.V., Klyuchnik O.N. and Budyuk E.D. Structure of martensitic-ferritic steels after surface plasma hardening ... 41
• Berestovoj A.M. Dimensions of the zone of boiler walls cleaning from solidified pitch in welding up cracks ... 45
• Kovalyov V.D., Vashchenko N.M. and Tarasenko A.G. Portable mechanical devices for cutting and preparation of pipes for welding ... 47
• Advertising ... 50