Striking a main arc between plasma and metal workpiece - using an auxiliary alternating current circuit
An auxiliary arc is struck between the electrode and the jet in the burner, using a high-frequency discharge, and plasma gas is fed to the burner so the flare bridges the gap between the electrode and the workpiece, thereby striking the main arc. The amplitude of the auxiliary high-frequency current...
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| creator | D. G. BYKHOVSKY, A. Y. MEDVEDEV, A. Y. FINKELSHTEIN, J. A. BOGORODSKY ET M. I. ZAX |
| description | An auxiliary arc is struck between the electrode and the jet in the burner, using a high-frequency discharge, and plasma gas is fed to the burner so the flare bridges the gap between the electrode and the workpiece, thereby striking the main arc. The amplitude of the auxiliary high-frequency current must be at least equal to the desired value of the main current, and both the frequency and the pulse duty factor of the auxiliary current are adjusted so that a visualy controllable, steady flare is obtd. for the entire period in which the auxiliary current is used. The amplitude of the auxiliary current is pref. between I and 31 (where I is the desired value of the current in the main arc), and the pref. ave. auxiliary current is 3-10 A. Circuit is reliable, simple and cheap. |
| format | Patent |
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ZAX</creatorcontrib><description>An auxiliary arc is struck between the electrode and the jet in the burner, using a high-frequency discharge, and plasma gas is fed to the burner so the flare bridges the gap between the electrode and the workpiece, thereby striking the main arc. The amplitude of the auxiliary high-frequency current must be at least equal to the desired value of the main current, and both the frequency and the pulse duty factor of the auxiliary current are adjusted so that a visualy controllable, steady flare is obtd. for the entire period in which the auxiliary current is used. The amplitude of the auxiliary current is pref. between I and 31 (where I is the desired value of the current in the main arc), and the pref. ave. auxiliary current is 3-10 A. Circuit is reliable, simple and cheap.</description><language>eng ; fre</language><subject>CLADDING OR PLATING BY SOLDERING OR WELDING ; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING ; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ; ELECTRICITY ; MACHINE TOOLS ; METAL-WORKING NOT OTHERWISE PROVIDED FOR ; PERFORMING OPERATIONS ; PLASMA TECHNIQUE ; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OFNEUTRONS ; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMICBEAMS ; SOLDERING OR UNSOLDERING ; TRANSPORTING ; WELDING ; WORKING BY LASER BEAM</subject><creationdate>1976</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19760116&DB=EPODOC&CC=FR&NR=2275963A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19760116&DB=EPODOC&CC=FR&NR=2275963A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>D. G. BYKHOVSKY, A. Y. MEDVEDEV, A. Y. FINKELSHTEIN, J. A. BOGORODSKY ET M. I. ZAX</creatorcontrib><title>Striking a main arc between plasma and metal workpiece - using an auxiliary alternating current circuit</title><description>An auxiliary arc is struck between the electrode and the jet in the burner, using a high-frequency discharge, and plasma gas is fed to the burner so the flare bridges the gap between the electrode and the workpiece, thereby striking the main arc. The amplitude of the auxiliary high-frequency current must be at least equal to the desired value of the main current, and both the frequency and the pulse duty factor of the auxiliary current are adjusted so that a visualy controllable, steady flare is obtd. for the entire period in which the auxiliary current is used. The amplitude of the auxiliary current is pref. between I and 31 (where I is the desired value of the current in the main arc), and the pref. ave. auxiliary current is 3-10 A. Circuit is reliable, simple and cheap.</description><subject>CLADDING OR PLATING BY SOLDERING OR WELDING</subject><subject>CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING</subject><subject>ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR</subject><subject>ELECTRICITY</subject><subject>MACHINE TOOLS</subject><subject>METAL-WORKING NOT OTHERWISE PROVIDED FOR</subject><subject>PERFORMING OPERATIONS</subject><subject>PLASMA TECHNIQUE</subject><subject>PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OFNEUTRONS</subject><subject>PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMICBEAMS</subject><subject>SOLDERING OR UNSOLDERING</subject><subject>TRANSPORTING</subject><subject>WELDING</subject><subject>WORKING BY LASER BEAM</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1976</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNqNizsOwjAMQLswIOAOvkAHWgFiRIiKGdgrE0xlNXEjx1Hh9nzEAZje8N6bFt3ZlHuWDhACsgCqgyvZSCQQPaaAgHKDQIYexkH7yOQISsjpe72P_GDPqE9Ab6SC9hEuq5IYOFaX2ebF5I4-0eLHWQHN4bI_lhSHllJER0LWNqeq2qy263q3rP9IXvxHP2c</recordid><startdate>19760116</startdate><enddate>19760116</enddate><creator>D. 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ZAX</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_FR2275963A13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; fre</language><creationdate>1976</creationdate><topic>CLADDING OR PLATING BY SOLDERING OR WELDING</topic><topic>CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING</topic><topic>ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR</topic><topic>ELECTRICITY</topic><topic>MACHINE TOOLS</topic><topic>METAL-WORKING NOT OTHERWISE PROVIDED FOR</topic><topic>PERFORMING OPERATIONS</topic><topic>PLASMA TECHNIQUE</topic><topic>PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OFNEUTRONS</topic><topic>PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMICBEAMS</topic><topic>SOLDERING OR UNSOLDERING</topic><topic>TRANSPORTING</topic><topic>WELDING</topic><topic>WORKING BY LASER BEAM</topic><toplevel>online_resources</toplevel><creatorcontrib>D. G. BYKHOVSKY, A. Y. MEDVEDEV, A. Y. FINKELSHTEIN, J. A. BOGORODSKY ET M. I. ZAX</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>D. G. BYKHOVSKY, A. Y. MEDVEDEV, A. Y. FINKELSHTEIN, J. A. BOGORODSKY ET M. I. ZAX</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Striking a main arc between plasma and metal workpiece - using an auxiliary alternating current circuit</title><date>1976-01-16</date><risdate>1976</risdate><abstract>An auxiliary arc is struck between the electrode and the jet in the burner, using a high-frequency discharge, and plasma gas is fed to the burner so the flare bridges the gap between the electrode and the workpiece, thereby striking the main arc. The amplitude of the auxiliary high-frequency current must be at least equal to the desired value of the main current, and both the frequency and the pulse duty factor of the auxiliary current are adjusted so that a visualy controllable, steady flare is obtd. for the entire period in which the auxiliary current is used. The amplitude of the auxiliary current is pref. between I and 31 (where I is the desired value of the current in the main arc), and the pref. ave. auxiliary current is 3-10 A. Circuit is reliable, simple and cheap.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | CLADDING OR PLATING BY SOLDERING OR WELDING CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR PERFORMING OPERATIONS PLASMA TECHNIQUE PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OFNEUTRONS PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMICBEAMS SOLDERING OR UNSOLDERING TRANSPORTING WELDING WORKING BY LASER BEAM |
| title | Striking a main arc between plasma and metal workpiece - using an auxiliary alternating current circuit |
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