ALLOY FOR COMPACTED BULLET AND ITS MANUFACTURE
PURPOSE:To manufacture the alloy for a compacted bullet having high penetrating length against protective goods by compacting W powder having specified grain size, infiltrating copper thereto and preparing an alloy having specified compositional ratio. CONSTITUTION:A binder (such as wax) is added to...
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| creator | UNNO MASAHIDE MIYOSHI HITOSHI |
| description | PURPOSE:To manufacture the alloy for a compacted bullet having high penetrating length against protective goods by compacting W powder having specified grain size, infiltrating copper thereto and preparing an alloy having specified compositional ratio. CONSTITUTION:A binder (such as wax) is added to W powder having 2 to 25mu grain size and the mixture is packed into a rubber mold having the shape of a liner, which is subjected to cold isostatic pressing under about 500 to 2000kgf/cm compacting pressure. Next, the green compact is dewaxed and is sintered at about 1100 to 1250 deg.C for about 10 to 120min in vacuum or in a hydrogen atmosphere. A Cu disk is placed on the sintered body, which is subjected to immersing treatment at about 1100 to 1250 deg.C for about 10 to 120min in a hydrogen atmosphere to form a liner for a compacted bullet contg. 60 to 80wt.% W and the balance Cu. In this way, the liner for a compacted bullet having extremely excellent penetrating length can be obtd. |
| format | Patent |
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CONSTITUTION:A binder (such as wax) is added to W powder having 2 to 25mu grain size and the mixture is packed into a rubber mold having the shape of a liner, which is subjected to cold isostatic pressing under about 500 to 2000kgf/cm compacting pressure. Next, the green compact is dewaxed and is sintered at about 1100 to 1250 deg.C for about 10 to 120min in vacuum or in a hydrogen atmosphere. A Cu disk is placed on the sintered body, which is subjected to immersing treatment at about 1100 to 1250 deg.C for about 10 to 120min in a hydrogen atmosphere to form a liner for a compacted bullet contg. 60 to 80wt.% W and the balance Cu. In this way, the liner for a compacted bullet having extremely excellent penetrating length can be obtd.</description><language>eng</language><subject>ALLOYS ; CASTING ; CHEMISTRY ; FERROUS OR NON-FERROUS ALLOYS ; MAKING METALLIC POWDER ; MANUFACTURE OF ARTICLES FROM METALLIC POWDER ; METALLURGY ; PERFORMING OPERATIONS ; POWDER METALLURGY ; TRANSPORTING ; TREATMENT OF ALLOYS OR NON-FERROUS METALS ; WORKING METALLIC POWDER</subject><creationdate>1990</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=19901012&DB=EPODOC&CC=JP&NR=H02254130A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19901012&DB=EPODOC&CC=JP&NR=H02254130A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>UNNO MASAHIDE</creatorcontrib><creatorcontrib>MIYOSHI HITOSHI</creatorcontrib><title>ALLOY FOR COMPACTED BULLET AND ITS MANUFACTURE</title><description>PURPOSE:To manufacture the alloy for a compacted bullet having high penetrating length against protective goods by compacting W powder having specified grain size, infiltrating copper thereto and preparing an alloy having specified compositional ratio. CONSTITUTION:A binder (such as wax) is added to W powder having 2 to 25mu grain size and the mixture is packed into a rubber mold having the shape of a liner, which is subjected to cold isostatic pressing under about 500 to 2000kgf/cm compacting pressure. Next, the green compact is dewaxed and is sintered at about 1100 to 1250 deg.C for about 10 to 120min in vacuum or in a hydrogen atmosphere. A Cu disk is placed on the sintered body, which is subjected to immersing treatment at about 1100 to 1250 deg.C for about 10 to 120min in a hydrogen atmosphere to form a liner for a compacted bullet contg. 60 to 80wt.% W and the balance Cu. In this way, the liner for a compacted bullet having extremely excellent penetrating length can be obtd.</description><subject>ALLOYS</subject><subject>CASTING</subject><subject>CHEMISTRY</subject><subject>FERROUS OR NON-FERROUS ALLOYS</subject><subject>MAKING METALLIC POWDER</subject><subject>MANUFACTURE OF ARTICLES FROM METALLIC POWDER</subject><subject>METALLURGY</subject><subject>PERFORMING OPERATIONS</subject><subject>POWDER METALLURGY</subject><subject>TRANSPORTING</subject><subject>TREATMENT OF ALLOYS OR NON-FERROUS METALS</subject><subject>WORKING METALLIC POWDER</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1990</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZNBz9PHxj1Rw8w9ScPb3DXB0DnF1UXAK9fFxDVFw9HNR8AwJVvB19At1A8qEBrnyMLCmJeYUp_JCaW4GRTfXEGcP3dSC_PjU4oLE5NS81JJ4rwAPAyMjUxNDYwNHY2LUAADUQCW3</recordid><startdate>19901012</startdate><enddate>19901012</enddate><creator>UNNO MASAHIDE</creator><creator>MIYOSHI HITOSHI</creator><scope>EVB</scope></search><sort><creationdate>19901012</creationdate><title>ALLOY FOR COMPACTED BULLET AND ITS MANUFACTURE</title><author>UNNO MASAHIDE ; MIYOSHI HITOSHI</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JPH02254130A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1990</creationdate><topic>ALLOYS</topic><topic>CASTING</topic><topic>CHEMISTRY</topic><topic>FERROUS OR NON-FERROUS ALLOYS</topic><topic>MAKING METALLIC POWDER</topic><topic>MANUFACTURE OF ARTICLES FROM METALLIC POWDER</topic><topic>METALLURGY</topic><topic>PERFORMING OPERATIONS</topic><topic>POWDER METALLURGY</topic><topic>TRANSPORTING</topic><topic>TREATMENT OF ALLOYS OR NON-FERROUS METALS</topic><topic>WORKING METALLIC POWDER</topic><toplevel>online_resources</toplevel><creatorcontrib>UNNO MASAHIDE</creatorcontrib><creatorcontrib>MIYOSHI HITOSHI</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>UNNO MASAHIDE</au><au>MIYOSHI HITOSHI</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>ALLOY FOR COMPACTED BULLET AND ITS MANUFACTURE</title><date>1990-10-12</date><risdate>1990</risdate><abstract>PURPOSE:To manufacture the alloy for a compacted bullet having high penetrating length against protective goods by compacting W powder having specified grain size, infiltrating copper thereto and preparing an alloy having specified compositional ratio. CONSTITUTION:A binder (such as wax) is added to W powder having 2 to 25mu grain size and the mixture is packed into a rubber mold having the shape of a liner, which is subjected to cold isostatic pressing under about 500 to 2000kgf/cm compacting pressure. Next, the green compact is dewaxed and is sintered at about 1100 to 1250 deg.C for about 10 to 120min in vacuum or in a hydrogen atmosphere. A Cu disk is placed on the sintered body, which is subjected to immersing treatment at about 1100 to 1250 deg.C for about 10 to 120min in a hydrogen atmosphere to form a liner for a compacted bullet contg. 60 to 80wt.% W and the balance Cu. In this way, the liner for a compacted bullet having extremely excellent penetrating length can be obtd.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | ALLOYS CASTING CHEMISTRY FERROUS OR NON-FERROUS ALLOYS MAKING METALLIC POWDER MANUFACTURE OF ARTICLES FROM METALLIC POWDER METALLURGY PERFORMING OPERATIONS POWDER METALLURGY TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS WORKING METALLIC POWDER |
| title | ALLOY FOR COMPACTED BULLET AND ITS MANUFACTURE |
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