Soldering esp printed circuits - using flux contg vehicle and reducing agent released as gas after evaporating vehicle
At least one of reducing agents is released as gas after evaporation of the vehicle in soldering process, esp. for printed circuits, in which a flux, consisting of a vehicle, pref. EtOH, and a reducing agemt, pref. formalin, dissolved in vehicle, is applied, before soldering, to positions to be sold...
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creator | KUENZIG, HERBERT, 8750 ASCHAFFENBURG |
description | At least one of reducing agents is released as gas after evaporation of the vehicle in soldering process, esp. for printed circuits, in which a flux, consisting of a vehicle, pref. EtOH, and a reducing agemt, pref. formalin, dissolved in vehicle, is applied, before soldering, to positions to be soldered, and where vehicle is evaporated by heat on soldering and the metal oxides and hydroxides are partly reduced and rinsed off. Surface tension of solder may be controlled by providing a higher mol wt. organic halogen-free cpd., esp. succinic anhydride. Pref. flux contains 100 cc 96% EtOH, 0.2 cc formalin (35% HCHO) and 1.5 g succinic acid. No residues are left and bubble inclusions are not formed. |
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EtOH, and a reducing agemt, pref. formalin, dissolved in vehicle, is applied, before soldering, to positions to be soldered, and where vehicle is evaporated by heat on soldering and the metal oxides and hydroxides are partly reduced and rinsed off. Surface tension of solder may be controlled by providing a higher mol wt. organic halogen-free cpd., esp. succinic anhydride. Pref. flux contains 100 cc 96% EtOH, 0.2 cc formalin (35% HCHO) and 1.5 g succinic acid. No residues are left and bubble inclusions are not formed.</description><language>eng ; ger</language><subject>CLADDING OR PLATING BY SOLDERING OR WELDING ; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING ; MACHINE TOOLS ; METAL-WORKING NOT OTHERWISE PROVIDED FOR ; PERFORMING OPERATIONS ; SOLDERING OR UNSOLDERING ; TRANSPORTING ; WELDING ; WORKING BY LASER BEAM</subject><creationdate>1974</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=19740221&DB=EPODOC&CC=DE&NR=2238874A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25563,76318</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19740221&DB=EPODOC&CC=DE&NR=2238874A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>KUENZIG, HERBERT, 8750 ASCHAFFENBURG</creatorcontrib><title>Soldering esp printed circuits - using flux contg vehicle and reducing agent released as gas after evaporating vehicle</title><description>At least one of reducing agents is released as gas after evaporation of the vehicle in soldering process, esp. for printed circuits, in which a flux, consisting of a vehicle, pref. EtOH, and a reducing agemt, pref. formalin, dissolved in vehicle, is applied, before soldering, to positions to be soldered, and where vehicle is evaporated by heat on soldering and the metal oxides and hydroxides are partly reduced and rinsed off. Surface tension of solder may be controlled by providing a higher mol wt. organic halogen-free cpd., esp. succinic anhydride. Pref. flux contains 100 cc 96% EtOH, 0.2 cc formalin (35% HCHO) and 1.5 g succinic acid. No residues are left and bubble inclusions are not formed.</description><subject>CLADDING OR PLATING BY SOLDERING OR WELDING</subject><subject>CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING</subject><subject>MACHINE TOOLS</subject><subject>METAL-WORKING NOT OTHERWISE PROVIDED FOR</subject><subject>PERFORMING OPERATIONS</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>1974</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNqNTsEKwjAU28WDqP_wfmAHN8FdRSfe9S6PNquF0pb2dfj5drAP8BCSkASybeZncBrJekPIkWJVAk3KJlWsZGqp5CWcXPmSCl4MzfhY5UDsNSXoopacDbxU68C57jmTqeBJkAgzx5BYlt463jebiV3GYeVdQ_fxdX20iOFdj7CCh7xvY9f1w3A-XY79H5UfbqhE4g</recordid><startdate>19740221</startdate><enddate>19740221</enddate><creator>KUENZIG, HERBERT, 8750 ASCHAFFENBURG</creator><scope>EVB</scope></search><sort><creationdate>19740221</creationdate><title>Soldering esp printed circuits - using flux contg vehicle and reducing agent released as gas after evaporating vehicle</title><author>KUENZIG, HERBERT, 8750 ASCHAFFENBURG</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_DE2238874A13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; ger</language><creationdate>1974</creationdate><topic>CLADDING OR PLATING BY SOLDERING OR WELDING</topic><topic>CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING</topic><topic>MACHINE TOOLS</topic><topic>METAL-WORKING NOT OTHERWISE PROVIDED FOR</topic><topic>PERFORMING OPERATIONS</topic><topic>SOLDERING OR UNSOLDERING</topic><topic>TRANSPORTING</topic><topic>WELDING</topic><topic>WORKING BY LASER BEAM</topic><toplevel>online_resources</toplevel><creatorcontrib>KUENZIG, HERBERT, 8750 ASCHAFFENBURG</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>KUENZIG, HERBERT, 8750 ASCHAFFENBURG</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Soldering esp printed circuits - using flux contg vehicle and reducing agent released as gas after evaporating vehicle</title><date>1974-02-21</date><risdate>1974</risdate><abstract>At least one of reducing agents is released as gas after evaporation of the vehicle in soldering process, esp. for printed circuits, in which a flux, consisting of a vehicle, pref. EtOH, and a reducing agemt, pref. formalin, dissolved in vehicle, is applied, before soldering, to positions to be soldered, and where vehicle is evaporated by heat on soldering and the metal oxides and hydroxides are partly reduced and rinsed off. Surface tension of solder may be controlled by providing a higher mol wt. organic halogen-free cpd., esp. succinic anhydride. Pref. flux contains 100 cc 96% EtOH, 0.2 cc formalin (35% HCHO) and 1.5 g succinic acid. No residues are left and bubble inclusions are not formed.</abstract><oa>free_for_read</oa></addata></record> |
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language | eng ; ger |
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source | esp@cenet |
subjects | CLADDING OR PLATING BY SOLDERING OR WELDING CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR PERFORMING OPERATIONS SOLDERING OR UNSOLDERING TRANSPORTING WELDING WORKING BY LASER BEAM |
title | Soldering esp printed circuits - using flux contg vehicle and reducing agent released as gas after evaporating vehicle |
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