MANUFACTURE OF HIGH FREQUENCY BEND TUBE
PURPOSE:To manufacture the high frequency bend tube of a small bend radius, which can hold
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| creator | HIRANO TAKAYUKI MAE MADOKA TANAKA TAKASHI AKIYAMA MASAO |
| description | PURPOSE:To manufacture the high frequency bend tube of a small bend radius, which can hold |
| format | Patent |
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CONSTITUTION:In the method for allowing a steel tube of a prescribed component composition to be subjected to high frequency induction heating to 850-1050 deg.C, and manufacturing a bend tube whose bend radius is <= three folds of the tube outside diameter, while executing water cooling, a relation of a carbon equivalent, a working speed of the steel tube, and the maximum hardness after the working processing is derived in advance, and based on the relation concerned, the working speed is determined in accordance with the carbon equivalent of the steel tube so as to satisfy prescribed hardness, and bending is executed. By selecting the working speed in accordance with the carbon equivalent of a tube stock, a high frequency bend tube of a small bend radius of prescribed hardness or below can be manufactured at a necessary and sufficient working speed in a state of high frequency bending, and the cost can be curtailed remarkably.</description><language>eng</language><subject>CHEMISTRY ; CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS ; ELECTRIC HEATING ; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR ; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ; ELECTRICITY ; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS ; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC ; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS ; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS ; MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL ; METALLURGY ; METALLURGY OF IRON ; MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS ; PERFORMING OPERATIONS ; PUNCHING METAL ; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS ; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE ; TRANSPORTING ; WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL</subject><creationdate>1993</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=19930309&DB=EPODOC&CC=JP&NR=H0557357A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25544,76293</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19930309&DB=EPODOC&CC=JP&NR=H0557357A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>HIRANO TAKAYUKI</creatorcontrib><creatorcontrib>MAE MADOKA</creatorcontrib><creatorcontrib>TANAKA TAKASHI</creatorcontrib><creatorcontrib>AKIYAMA MASAO</creatorcontrib><title>MANUFACTURE OF HIGH FREQUENCY BEND TUBE</title><description>PURPOSE:To manufacture the high frequency bend tube of a small bend radius, which can hold <=Hv 248 in a state of bending, and <=Hv 207 as the case may be, and also, can select a working speed of the maximum efficiency. CONSTITUTION:In the method for allowing a steel tube of a prescribed component composition to be subjected to high frequency induction heating to 850-1050 deg.C, and manufacturing a bend tube whose bend radius is <= three folds of the tube outside diameter, while executing water cooling, a relation of a carbon equivalent, a working speed of the steel tube, and the maximum hardness after the working processing is derived in advance, and based on the relation concerned, the working speed is determined in accordance with the carbon equivalent of the steel tube so as to satisfy prescribed hardness, and bending is executed. By selecting the working speed in accordance with the carbon equivalent of a tube stock, a high frequency bend tube of a small bend radius of prescribed hardness or below can be manufactured at a necessary and sufficient working speed in a state of high frequency bending, and the cost can be curtailed remarkably.</description><subject>CHEMISTRY</subject><subject>CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS</subject><subject>ELECTRIC HEATING</subject><subject>ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR</subject><subject>ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR</subject><subject>ELECTRICITY</subject><subject>GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS</subject><subject>GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC</subject><subject>GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS</subject><subject>MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS</subject><subject>MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL</subject><subject>METALLURGY</subject><subject>METALLURGY OF IRON</subject><subject>MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS</subject><subject>PERFORMING OPERATIONS</subject><subject>PUNCHING METAL</subject><subject>TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS</subject><subject>TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE</subject><subject>TRANSPORTING</subject><subject>WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1993</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZFD3dfQLdXN0DgkNclXwd1Pw8HT3UHALcg0MdfVzjlRwcvVzUQgJdXLlYWBNS8wpTuWF0twMCm6uIc4euqkF-fGpxQWJyal5qSXxXgEeBqam5sam5o7GRCgBAJQvI3k</recordid><startdate>19930309</startdate><enddate>19930309</enddate><creator>HIRANO TAKAYUKI</creator><creator>MAE MADOKA</creator><creator>TANAKA TAKASHI</creator><creator>AKIYAMA MASAO</creator><scope>EVB</scope></search><sort><creationdate>19930309</creationdate><title>MANUFACTURE OF HIGH FREQUENCY BEND TUBE</title><author>HIRANO TAKAYUKI ; MAE MADOKA ; TANAKA TAKASHI ; AKIYAMA MASAO</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JPH0557357A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1993</creationdate><topic>CHEMISTRY</topic><topic>CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS</topic><topic>ELECTRIC HEATING</topic><topic>ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR</topic><topic>ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR</topic><topic>ELECTRICITY</topic><topic>GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS</topic><topic>GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC</topic><topic>GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS</topic><topic>MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS</topic><topic>MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL</topic><topic>METALLURGY</topic><topic>METALLURGY OF IRON</topic><topic>MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS</topic><topic>PERFORMING OPERATIONS</topic><topic>PUNCHING METAL</topic><topic>TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS</topic><topic>TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE</topic><topic>TRANSPORTING</topic><topic>WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL</topic><toplevel>online_resources</toplevel><creatorcontrib>HIRANO TAKAYUKI</creatorcontrib><creatorcontrib>MAE MADOKA</creatorcontrib><creatorcontrib>TANAKA TAKASHI</creatorcontrib><creatorcontrib>AKIYAMA MASAO</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>HIRANO TAKAYUKI</au><au>MAE MADOKA</au><au>TANAKA TAKASHI</au><au>AKIYAMA MASAO</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>MANUFACTURE OF HIGH FREQUENCY BEND TUBE</title><date>1993-03-09</date><risdate>1993</risdate><abstract>PURPOSE:To manufacture the high frequency bend tube of a small bend radius, which can hold <=Hv 248 in a state of bending, and <=Hv 207 as the case may be, and also, can select a working speed of the maximum efficiency. CONSTITUTION:In the method for allowing a steel tube of a prescribed component composition to be subjected to high frequency induction heating to 850-1050 deg.C, and manufacturing a bend tube whose bend radius is <= three folds of the tube outside diameter, while executing water cooling, a relation of a carbon equivalent, a working speed of the steel tube, and the maximum hardness after the working processing is derived in advance, and based on the relation concerned, the working speed is determined in accordance with the carbon equivalent of the steel tube so as to satisfy prescribed hardness, and bending is executed. By selecting the working speed in accordance with the carbon equivalent of a tube stock, a high frequency bend tube of a small bend radius of prescribed hardness or below can be manufactured at a necessary and sufficient working speed in a state of high frequency bending, and the cost can be curtailed remarkably.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS ELECTRIC HEATING ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS PERFORMING OPERATIONS PUNCHING METAL TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TRANSPORTING WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL |
| title | MANUFACTURE OF HIGH FREQUENCY BEND TUBE |
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