ÌÒÌ virtual journal
Ñ î ä å ð æ à í è å / C o n t e n t s
ÇÀ ÎÏÅÐÀÒÈÂÍÀ ÏÐÎÃÐÀÌÀ „ÊÎÍÊÓÐÅÍÒÎÑÏÎÑÎÁÍÎÑÒ” È ÑÒÐÀÒÅÃÈ×ÅÑÊÎÒÎ ÏÎÇÈÖÈÎÍÈÐÀÍÅ ÍÀ ÌÀËÊÈÒÅ È ÑÐÅÄÍÈÒÅ ÏÐÅÄÏÐÈßÒÈß
Âàëÿ Èâàíîâà…...............................................................................3
MAØÈÍÛ / MACHINES
SIMPLE SEMICONDUCTOR SWITCH IN ZERO OF AC VOLTAGE WITH MINIMUM ELECTROMAGNETIC INFLUENCE (EMC) ON POWER SUPPLY NETWORK
ÏÐÎÑÒÎÉ ÏÎËÓÏÐÎÂÎÄÍÈÊÎÛÉ ÂÛÊËÞ×ÀÒÅËÜ Â ÍÀÑÒÎßÈÌ ÈÓËÜ ÇÍÀÊÎÏÅÐÅÌÅÍÍÎÃÎ ÍÀÏÐ߯ÅÍÈß Ñ ÌÈÍÈÌÀËÜÈÛÌ ÂËÈßÈÅÌ ÍÀ ÒßËÎÂÓÞ ÑÅÒÜ.
Kamil Zidek, Vladislav Maxim, Miloslav Luptak,................................................6
ÒÅÕÍÎËÎÃÈÈ / TECHNOLOGIES
ÑÚÑÒÎßÍÈÅ È ÏÅÐÑÏÅÊÒÈÂÈ ÍÀ ÇÀÂÀÐÚ×ÍÎÒÎ ÏÐÎÈÇÂÎÄÑÒÂÎ, ÇÀÂÀÐÚ×ÍÈÒÅ ÒÅÕÍÎËÎÃÈÈ È ÇÀÂÀÐÚ×ÍÀÒÀ ÒÅÕÍÈÊÀ  ÁÚËÃÀÐÈß
STATE AND PERSPECTIVES OF THE WELDING PRODUCTION, WELDING TECHNOLOGIES AND WELDING TECHNICS IN BULGARIA
Áåëîåâ Ì. ........................................................................................10
ÒÅÍÄÅÍÖÈÈ Â ÐÀÇÂÈÒÈÅÒÎ ÍÀ ÇÀÂÀÐÚ×ÍÀÒÀ ÒÅÕÍÎËÎÃÈß
TRENDS IN THE DEVELOPMENT OF WELDING TECHNOLOGY
Õðèñòîâ Ñ. ................................................................................14
ÇÀÂÀÐßÂÀÍÅ ÍÀ ÀÓÑÒÅÍÈÒÍÈ ÑÒÎÌÀÍÈ Ñ ÂÈÑÎÊÎ ÑÚÄÚÐÆÀÍÈÅ ÍÀ ÀÇÎÒ
WELDING OF AUSTENITIC STEELS WITH HIGH NITROGEN CONTENT
Æåëÿçîâ Ä. .........................................................................17
ÅÊÑÏÅÐÒÍÀ ÑÈÑÒÅÌÀ ÇÀ ÇÀÂÀÐßÂÀÍÅ ÍÀ ÑÒÎÌÀÍÈ
STEEL WELDING EXPERT SYSTEM
Atanasova D. .....................................................................21
ÅÂÐÎÏÅÉÑÊÀÒÀ ÕÀÐÌÎÍÈÇÈÐÀÍÀ ÑÈÑÒÅÌÀ ÇÀ ÎÁÓ×ÅÍÈÅ ÍÀ ÏÅÐÑÎÍÀË ÏÎ ÇÀÂÀÐßÂÀÍÅ È ÍÅÉÍÎÒÎ ÏÐÈËÎÆÅÍÈÅ Â ÁÚËÃÀÐÈß
ÅÂÐÎÏÅÉÑÊÀß ÃÀÐÌÎÍÈÇÈÐÎÂÀÍÍÀß ÑÈÑÒÅÌÀ ÄËß ÎÁÓ×ÅÍÈß ÏÅÐÑÎÍÀËÀ  ÑÂÀÐÊÅ È ÅÅ ÏÐÈÌÅÍÅÍÈÅ Â ÁÎËÃÀÐÈÈ
Áåëîåâ Ì., Ï. Äúðæàíîâ ..............................................................................25
ÁÀÇÎÂÈ ÈÇÈÑÊÂÀÍÈß ÍÀ IAB ÇÀ ÕÀÐÌÎÍÈÇÈÐÀÍÅ ÍÀ ÈÇÏÈÒÍÈÒÅ ÏÐÎÖÅÄÓÐÈ ÍÀ ÊÀÍÄÈÄÀÒÈ ÇÀ ÌÅÆÄÓÍÀÐÎÄÍÀ ÊÂÀËÈÔÈÊÀÖÈß ÏÎ ÇÀÂÀÐßÂÀÍÅ È ÒßÕÍÎÒÎ ÏÐÈËÎÆÅÍÈÅ Â ÁÚËÃÀÐÈß
ÁÀÇÈÑÍÛÅ ÒÐÅÁÎÂÀÍÈß IAB ÄËß ÃÀÐÌÎÍÈÇÈÐÎÂÀÍÈß ÏÐÎÖÅÄÓÐ ÄËß ÝÊÇÀÌÅÍÎÂ ÊÀÍÄÈÄÀÒÎÂ ÄËß ÌÅÆÄÓÍÀÐÎÄÍÎÉ ÊÂÀËÈÔÈÊÀÖÈÈ ÑÂÀÐÊÈ È ÈÕ ÏÐÈÌÅÍÅÍÈß Â ÁÎËÃÀÐÈÈ
Äúðæàíîâ Ï. ...................................................................................28
TRAINING OF PERSONNEL WITH INTERNATIONAL QUALIFICATION IN WELDING
ÎÁÓ×ÅÍÈÅ ÏÅÐÑÎÍÀËËÀ Ñ ÌÅÆÄÓÍÀÐÎÄÍÎÉ ÊÂÀËÈÔÈÊÀÖÈÅÉ ÏÎ ÑÂÀÐÊÅ
Wassileva D., Pl. Dinkov .............................................................31
ÈÇÑËÅÄÂÀÍÅ ÂËÈßÍÈÅÒÎ ÍÀ ÒÅÕÍÎËÎÃÈ×ÍÈ ÏÀÐÀÌÅÒÐÈ ÂÚÐÕÓ ÌÅÕÀÍÈ×ÍÈÒÅ ÏÎÊÀÇÀÒÅËÈ
ÍÀ ÎÒËÈÂÊÀ ÎÒ AlSi7Mg ÇÀ ÄÅÒÀÉË ÎÒ ÑÈÑÒÅÌÀÒÀ ÇÀ ÎÊÀ×ÂÀÍÅ ÍÀ ÀÂÒÎÌÎÁÈËÀ
INVESTIGATING THE PROCESS PARAMETERS INFLUENCE ON THE MECHANICAL PROPERTIES OF AlSi7Mg CASTING-PART OF THE CAR SUSPENSION SYSTEM
Ìîì÷èëîâ Å., Ãåîðãèåâ Ì., Ìàíåâà À., Ñòàíåâ Ñ. ...........................36
ÄÓÏËÅÊÑ ÍÅÐÚÆÄßÑÂÀÙÈ ÑÒÎÌÀÍÈ - ÑÂÎÉÑÒÂÀ È ÇÀÂÀÐßÂÀÍÅ
Ëîëîâ Í. ................................................................................ .......40






