PROCEDIMENTO E DISPOSITIVO PER IL CONTROLLO NON DISTRUTTIVO DI UNA GIUNZIONE FRA LAMIERE REALIZZATA MEDIANTE SALDATURA ELETTRICA A PUNTI
It is decribed a method for the non-destructive test of a joint obtained by electric spot welding of two sheets, substantially of the same material, joined together in a local zone with the formation of a core, its structure having a thermal diffusivity substantially different from the thermal diffu...
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| creator | RE FIORENTIN STEFANO PALAZZETTI MARIO TUFANO GIOVANNI |
| description | It is decribed a method for the non-destructive test of a joint obtained by electric spot welding of two sheets, substantially of the same material, joined together in a local zone with the formation of a core, its structure having a thermal diffusivity substantially different from the thermal diffusivity of the material of the two sheets before welding, a result which is obtained only when the welding is of a good quality.
This purpose is attained by a device whose main characteristic is to comprise an electrode able to supply a source of heat and a detector which are fitted to be placed on two conveniently chosen points on the surface of the two welded sheets, a generator feeding the electrode and an amplifier having an input connected to said detector and an output connected by a A/D converter to a computer able to process the signal and to give an indication of the welding quality on the basis of the measured value of the thermal diffusivity. |
| format | Patent |
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This purpose is attained by a device whose main characteristic is to comprise an electrode able to supply a source of heat and a detector which are fitted to be placed on two conveniently chosen points on the surface of the two welded sheets, a generator feeding the electrode and an amplifier having an input connected to said detector and an output connected by a A/D converter to a computer able to process the signal and to give an indication of the welding quality on the basis of the measured value of the thermal diffusivity.</description><edition>4</edition><language>ita</language><subject>INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES ; MEASURING ; PHYSICS ; TESTING</subject><creationdate>1988</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=19881125&DB=EPODOC&CC=IT&NR=1196701B$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25543,76293</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19881125&DB=EPODOC&CC=IT&NR=1196701B$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>RE FIORENTIN STEFANO</creatorcontrib><creatorcontrib>PALAZZETTI MARIO</creatorcontrib><creatorcontrib>TUFANO GIOVANNI</creatorcontrib><title>PROCEDIMENTO E DISPOSITIVO PER IL CONTROLLO NON DISTRUTTIVO DI UNA GIUNZIONE FRA LAMIERE REALIZZATA MEDIANTE SALDATURA ELETTRICA A PUNTI</title><description>It is decribed a method for the non-destructive test of a joint obtained by electric spot welding of two sheets, substantially of the same material, joined together in a local zone with the formation of a core, its structure having a thermal diffusivity substantially different from the thermal diffusivity of the material of the two sheets before welding, a result which is obtained only when the welding is of a good quality.
This purpose is attained by a device whose main characteristic is to comprise an electrode able to supply a source of heat and a detector which are fitted to be placed on two conveniently chosen points on the surface of the two welded sheets, a generator feeding the electrode and an amplifier having an input connected to said detector and an output connected by a A/D converter to a computer able to process the signal and to give an indication of the welding quality on the basis of the measured value of the thermal diffusivity.</description><subject>INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES</subject><subject>MEASURING</subject><subject>PHYSICS</subject><subject>TESTING</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1988</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNqFzTEKwkAQQNE0FqKewbmAYBAUyzGZ6MBmJmxmLdKEIGslGoiH8NhGsbf6zYM_TV6V14xyLklMgSDnutKajc8KFXlgB5mKeXVOQVQ-wHywL8gZgiAcOUjDKgSFR3BYMnkCT-i4adAQynGAYgQ1uhwtjIocmXnOEBCqIMbzZHLtbkNc_DpLlgVZdlrF_tHGoe8u8R6fLVua7re7dXrY_Bdvr0s-BA</recordid><startdate>19881125</startdate><enddate>19881125</enddate><creator>RE FIORENTIN STEFANO</creator><creator>PALAZZETTI MARIO</creator><creator>TUFANO GIOVANNI</creator><scope>EVB</scope></search><sort><creationdate>19881125</creationdate><title>PROCEDIMENTO E DISPOSITIVO PER IL CONTROLLO NON DISTRUTTIVO DI UNA GIUNZIONE FRA LAMIERE REALIZZATA MEDIANTE SALDATURA ELETTRICA A PUNTI</title><author>RE FIORENTIN STEFANO ; PALAZZETTI MARIO ; TUFANO GIOVANNI</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_IT1196701B3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>ita</language><creationdate>1988</creationdate><topic>INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES</topic><topic>MEASURING</topic><topic>PHYSICS</topic><topic>TESTING</topic><toplevel>online_resources</toplevel><creatorcontrib>RE FIORENTIN STEFANO</creatorcontrib><creatorcontrib>PALAZZETTI MARIO</creatorcontrib><creatorcontrib>TUFANO GIOVANNI</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>RE FIORENTIN STEFANO</au><au>PALAZZETTI MARIO</au><au>TUFANO GIOVANNI</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>PROCEDIMENTO E DISPOSITIVO PER IL CONTROLLO NON DISTRUTTIVO DI UNA GIUNZIONE FRA LAMIERE REALIZZATA MEDIANTE SALDATURA ELETTRICA A PUNTI</title><date>1988-11-25</date><risdate>1988</risdate><abstract>It is decribed a method for the non-destructive test of a joint obtained by electric spot welding of two sheets, substantially of the same material, joined together in a local zone with the formation of a core, its structure having a thermal diffusivity substantially different from the thermal diffusivity of the material of the two sheets before welding, a result which is obtained only when the welding is of a good quality.
This purpose is attained by a device whose main characteristic is to comprise an electrode able to supply a source of heat and a detector which are fitted to be placed on two conveniently chosen points on the surface of the two welded sheets, a generator feeding the electrode and an amplifier having an input connected to said detector and an output connected by a A/D converter to a computer able to process the signal and to give an indication of the welding quality on the basis of the measured value of the thermal diffusivity.</abstract><edition>4</edition><oa>free_for_read</oa></addata></record> |
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| subjects | INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING PHYSICS TESTING |
| title | PROCEDIMENTO E DISPOSITIVO PER IL CONTROLLO NON DISTRUTTIVO DI UNA GIUNZIONE FRA LAMIERE REALIZZATA MEDIANTE SALDATURA ELETTRICA A PUNTI |
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