COPPER BRAZING METHOD FOR HEAT EXCHANGER
PROBLEM TO BE SOLVED: To prevent a crack in a pipe base metal caused by brazing a cooling pipe and fins and thus a leak of cooling water. SOLUTION: A surface of a cooling pipe 1 and fins 3 is plated with Ni to form a Ni-plated layer 4 and the cooling pipe 1 and the fins 3 are provisionally assembled...
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| creator | KISHIKAWA RYOJI |
| description | PROBLEM TO BE SOLVED: To prevent a crack in a pipe base metal caused by brazing a cooling pipe and fins and thus a leak of cooling water. SOLUTION: A surface of a cooling pipe 1 and fins 3 is plated with Ni to form a Ni-plated layer 4 and the cooling pipe 1 and the fins 3 are provisionally assembled and brazed with copper. Since copper does not diffuse into a grain boundary of the base metal of the pipe when the copper brazing is performed, it is possible to prevent a crack in the grain boundary and thus a leak of cooling water and it is not necessary to make a thickness of the cooling pipe larger for preventing the crack, whereby a light compact heat exchanger can be manufactured. |
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SOLUTION: A surface of a cooling pipe 1 and fins 3 is plated with Ni to form a Ni-plated layer 4 and the cooling pipe 1 and the fins 3 are provisionally assembled and brazed with copper. Since copper does not diffuse into a grain boundary of the base metal of the pipe when the copper brazing is performed, it is possible to prevent a crack in the grain boundary and thus a leak of cooling water and it is not necessary to make a thickness of the cooling pipe larger for preventing the crack, whereby a light compact heat exchanger can be manufactured.</description><edition>6</edition><language>eng</language><subject>BLASTING ; CLADDING OR PLATING BY SOLDERING OR WELDING ; COMBINED OPERATIONS ; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING ; DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OFGENERAL APPLICATION ; HEAT EXCHANGE IN GENERAL ; HEATING ; LIGHTING ; MACHINE TOOLS ; MECHANICAL ENGINEERING ; METAL-WORKING NOT OTHERWISE PROVIDED FOR ; OTHER WORKING OF METAL ; PERFORMING OPERATIONS ; SOLDERING OR UNSOLDERING ; TRANSPORTING ; UNIVERSAL MACHINE TOOLS ; WEAPONS ; WELDING ; WORKING BY LASER BEAM</subject><creationdate>1997</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=19970210&DB=EPODOC&CC=JP&NR=H0938833A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25543,76292</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19970210&DB=EPODOC&CC=JP&NR=H0938833A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>KISHIKAWA RYOJI</creatorcontrib><title>COPPER BRAZING METHOD FOR HEAT EXCHANGER</title><description>PROBLEM TO BE SOLVED: To prevent a crack in a pipe base metal caused by brazing a cooling pipe and fins and thus a leak of cooling water. SOLUTION: A surface of a cooling pipe 1 and fins 3 is plated with Ni to form a Ni-plated layer 4 and the cooling pipe 1 and the fins 3 are provisionally assembled and brazed with copper. Since copper does not diffuse into a grain boundary of the base metal of the pipe when the copper brazing is performed, it is possible to prevent a crack in the grain boundary and thus a leak of cooling water and it is not necessary to make a thickness of the cooling pipe larger for preventing the crack, whereby a light compact heat exchanger can be manufactured.</description><subject>BLASTING</subject><subject>CLADDING OR PLATING BY SOLDERING OR WELDING</subject><subject>COMBINED OPERATIONS</subject><subject>CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING</subject><subject>DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OFGENERAL APPLICATION</subject><subject>HEAT EXCHANGE IN GENERAL</subject><subject>HEATING</subject><subject>LIGHTING</subject><subject>MACHINE TOOLS</subject><subject>MECHANICAL ENGINEERING</subject><subject>METAL-WORKING NOT OTHERWISE PROVIDED FOR</subject><subject>OTHER WORKING OF METAL</subject><subject>PERFORMING OPERATIONS</subject><subject>SOLDERING OR UNSOLDERING</subject><subject>TRANSPORTING</subject><subject>UNIVERSAL MACHINE TOOLS</subject><subject>WEAPONS</subject><subject>WELDING</subject><subject>WORKING BY LASER BEAM</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1997</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZNBw9g8IcA1ScApyjPL0c1fwdQ3x8HdRcPMPUvBwdQxRcI1w9nD0c3cN4mFgTUvMKU7lhdLcDApuriHOHrqpBfnxqcUFicmpeakl8V4BHgaWxhYWxsaOxkQoAQC4VCPI</recordid><startdate>19970210</startdate><enddate>19970210</enddate><creator>KISHIKAWA RYOJI</creator><scope>EVB</scope></search><sort><creationdate>19970210</creationdate><title>COPPER BRAZING METHOD FOR HEAT EXCHANGER</title><author>KISHIKAWA RYOJI</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JPH0938833A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1997</creationdate><topic>BLASTING</topic><topic>CLADDING OR PLATING BY SOLDERING OR WELDING</topic><topic>COMBINED OPERATIONS</topic><topic>CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING</topic><topic>DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OFGENERAL APPLICATION</topic><topic>HEAT EXCHANGE IN GENERAL</topic><topic>HEATING</topic><topic>LIGHTING</topic><topic>MACHINE TOOLS</topic><topic>MECHANICAL ENGINEERING</topic><topic>METAL-WORKING NOT OTHERWISE PROVIDED FOR</topic><topic>OTHER WORKING OF METAL</topic><topic>PERFORMING OPERATIONS</topic><topic>SOLDERING OR UNSOLDERING</topic><topic>TRANSPORTING</topic><topic>UNIVERSAL MACHINE TOOLS</topic><topic>WEAPONS</topic><topic>WELDING</topic><topic>WORKING BY LASER BEAM</topic><toplevel>online_resources</toplevel><creatorcontrib>KISHIKAWA RYOJI</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>KISHIKAWA RYOJI</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>COPPER BRAZING METHOD FOR HEAT EXCHANGER</title><date>1997-02-10</date><risdate>1997</risdate><abstract>PROBLEM TO BE SOLVED: To prevent a crack in a pipe base metal caused by brazing a cooling pipe and fins and thus a leak of cooling water. SOLUTION: A surface of a cooling pipe 1 and fins 3 is plated with Ni to form a Ni-plated layer 4 and the cooling pipe 1 and the fins 3 are provisionally assembled and brazed with copper. Since copper does not diffuse into a grain boundary of the base metal of the pipe when the copper brazing is performed, it is possible to prevent a crack in the grain boundary and thus a leak of cooling water and it is not necessary to make a thickness of the cooling pipe larger for preventing the crack, whereby a light compact heat exchanger can be manufactured.</abstract><edition>6</edition><oa>free_for_read</oa></addata></record> |
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| language | eng |
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| source | esp@cenet |
| subjects | BLASTING CLADDING OR PLATING BY SOLDERING OR WELDING COMBINED OPERATIONS CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OFGENERAL APPLICATION HEAT EXCHANGE IN GENERAL HEATING LIGHTING MACHINE TOOLS MECHANICAL ENGINEERING METAL-WORKING NOT OTHERWISE PROVIDED FOR OTHER WORKING OF METAL PERFORMING OPERATIONS SOLDERING OR UNSOLDERING TRANSPORTING UNIVERSAL MACHINE TOOLS WEAPONS WELDING WORKING BY LASER BEAM |
| title | COPPER BRAZING METHOD FOR HEAT EXCHANGER |
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