PRODUCTION OF CORROSIONPROOF SPRING FOR SUSPENSION
PURPOSE:To produce a corrosionproof spring for suspension where the occurrence of pitting corrosion to be the origin of spring breakage and also the occurrence of delayed fracture are prevented and which is free from deterioration in strength. CONSTITUTION:The suspension spring can be produced by pe...
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| creator | MITSUYOSHI YASUHIKO KOYAHARA HIDEO |
| description | PURPOSE:To produce a corrosionproof spring for suspension where the occurrence of pitting corrosion to be the origin of spring breakage and also the occurrence of delayed fracture are prevented and which is free from deterioration in strength. CONSTITUTION:The suspension spring can be produced by performing treatments, such as the stages of soaking, hot forming, hardening, tempering, shot peening, and coating or the stages of cold forming, soaking, hardening, tempering, shot peening, and coating. In this method, at least a part of the surface of the steel material for spring, before soaking or before cold forming, is electroplated with manganese, and, at the time of soaking treatment, hydrogen in the steel material is released and manganese is diffused and penetrated. By this method, the suspension spring free from delayed fracture can be produced, and further, the occurrence of pitting corrosion to be the origin of corrosion fatigue.breakage in a salt damage environment can be prevented. |
| format | Patent |
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CONSTITUTION:The suspension spring can be produced by performing treatments, such as the stages of soaking, hot forming, hardening, tempering, shot peening, and coating or the stages of cold forming, soaking, hardening, tempering, shot peening, and coating. In this method, at least a part of the surface of the steel material for spring, before soaking or before cold forming, is electroplated with manganese, and, at the time of soaking treatment, hydrogen in the steel material is released and manganese is diffused and penetrated. By this method, the suspension spring free from delayed fracture can be produced, and further, the occurrence of pitting corrosion to be the origin of corrosion fatigue.breakage in a salt damage environment can be prevented.</description><edition>5</edition><language>eng</language><subject>ALLOYS ; APPARATUS THEREFOR ; CHEMISTRY ; ELECTROFORMING ; ELECTROLYTIC OR ELECTROPHORETIC PROCESSES ; FERROUS OR NON-FERROUS ALLOYS ; METALLURGY ; PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTIONOF COATINGS ; TREATMENT OF ALLOYS OR NON-FERROUS METALS</subject><creationdate>1994</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=19940201&DB=EPODOC&CC=JP&NR=H0625893A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19940201&DB=EPODOC&CC=JP&NR=H0625893A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>MITSUYOSHI YASUHIKO</creatorcontrib><creatorcontrib>KOYAHARA HIDEO</creatorcontrib><title>PRODUCTION OF CORROSIONPROOF SPRING FOR SUSPENSION</title><description>PURPOSE:To produce a corrosionproof spring for suspension where the occurrence of pitting corrosion to be the origin of spring breakage and also the occurrence of delayed fracture are prevented and which is free from deterioration in strength. CONSTITUTION:The suspension spring can be produced by performing treatments, such as the stages of soaking, hot forming, hardening, tempering, shot peening, and coating or the stages of cold forming, soaking, hardening, tempering, shot peening, and coating. In this method, at least a part of the surface of the steel material for spring, before soaking or before cold forming, is electroplated with manganese, and, at the time of soaking treatment, hydrogen in the steel material is released and manganese is diffused and penetrated. By this method, the suspension spring free from delayed fracture can be produced, and further, the occurrence of pitting corrosion to be the origin of corrosion fatigue.breakage in a salt damage environment can be prevented.</description><subject>ALLOYS</subject><subject>APPARATUS THEREFOR</subject><subject>CHEMISTRY</subject><subject>ELECTROFORMING</subject><subject>ELECTROLYTIC OR ELECTROPHORETIC PROCESSES</subject><subject>FERROUS OR NON-FERROUS ALLOYS</subject><subject>METALLURGY</subject><subject>PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTIONOF COATINGS</subject><subject>TREATMENT OF ALLOYS OR NON-FERROUS METALS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1994</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZDAKCPJ3CXUO8fT3U_B3U3D2DwryDwZygMJAbnBAkKefu4Kbf5BCcGhwgKsfSIqHgTUtMac4lRdKczMouLmGOHvophbkx6cWFyQmp-allsR7BXgYmBmZWlgaOxoToQQAeHgnTA</recordid><startdate>19940201</startdate><enddate>19940201</enddate><creator>MITSUYOSHI YASUHIKO</creator><creator>KOYAHARA HIDEO</creator><scope>EVB</scope></search><sort><creationdate>19940201</creationdate><title>PRODUCTION OF CORROSIONPROOF SPRING FOR SUSPENSION</title><author>MITSUYOSHI YASUHIKO ; KOYAHARA HIDEO</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JPH0625893A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1994</creationdate><topic>ALLOYS</topic><topic>APPARATUS THEREFOR</topic><topic>CHEMISTRY</topic><topic>ELECTROFORMING</topic><topic>ELECTROLYTIC OR ELECTROPHORETIC PROCESSES</topic><topic>FERROUS OR NON-FERROUS ALLOYS</topic><topic>METALLURGY</topic><topic>PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTIONOF COATINGS</topic><topic>TREATMENT OF ALLOYS OR NON-FERROUS METALS</topic><toplevel>online_resources</toplevel><creatorcontrib>MITSUYOSHI YASUHIKO</creatorcontrib><creatorcontrib>KOYAHARA HIDEO</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>MITSUYOSHI YASUHIKO</au><au>KOYAHARA HIDEO</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>PRODUCTION OF CORROSIONPROOF SPRING FOR SUSPENSION</title><date>1994-02-01</date><risdate>1994</risdate><abstract>PURPOSE:To produce a corrosionproof spring for suspension where the occurrence of pitting corrosion to be the origin of spring breakage and also the occurrence of delayed fracture are prevented and which is free from deterioration in strength. CONSTITUTION:The suspension spring can be produced by performing treatments, such as the stages of soaking, hot forming, hardening, tempering, shot peening, and coating or the stages of cold forming, soaking, hardening, tempering, shot peening, and coating. In this method, at least a part of the surface of the steel material for spring, before soaking or before cold forming, is electroplated with manganese, and, at the time of soaking treatment, hydrogen in the steel material is released and manganese is diffused and penetrated. By this method, the suspension spring free from delayed fracture can be produced, and further, the occurrence of pitting corrosion to be the origin of corrosion fatigue.breakage in a salt damage environment can be prevented.</abstract><edition>5</edition><oa>free_for_read</oa></addata></record> |
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| subjects | ALLOYS APPARATUS THEREFOR CHEMISTRY ELECTROFORMING ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FERROUS OR NON-FERROUS ALLOYS METALLURGY PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTIONOF COATINGS TREATMENT OF ALLOYS OR NON-FERROUS METALS |
| title | PRODUCTION OF CORROSIONPROOF SPRING FOR SUSPENSION |
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