METHOD OF PRODUCTION OF COMPRESSED POWDER ELECTRICAL CONTACTS
A process of hot pressing of materials to form articles or compacts is characterized by the steps: (A) providing a compactable particulate mixture; (B) uniaxially pressing the particles without heating to provide article or compact (22); (C) placing at least one article or compact (22) in an open pa...
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| creator | IYER, NATRAJ CHANDRASEKAR MALE, ALAN THOMAS LOVIC, WILLIAM ROBERT |
| description | A process of hot pressing of materials to form articles or compacts is characterized by the steps: (A) providing a compactable particulate mixture; (B) uniaxially pressing the particles without heating to provide article or compact (22); (C) placing at least one article or compact (22) in an open pan (31) having an insertable frame (32) with edge surfaces (34) that are not significantly pressure deformable, where the inside side surfaces of the frame are parallel to the central axis B-B of the open pan, and where each article or compact is surrounded by fine particles of a separating material; (D) evacuating air from the container and sealing the articles or compacts inside the container by means of top lid (36); (E) hot pressing the compacts at a pressure from 352.5 kg/cm2 to 3,172 kg/cm2 to provide simultaneous hot pressing and densification of the articles or compacts; (F) gradually cooling and releasing the pressure; and, (G) separating the articles or compacts from the container, where there is no heating of the compacts in the process before step (E). |
| format | Patent |
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(B) uniaxially pressing the particles without heating to provide article or compact (22); (C) placing at least one article or compact (22) in an open pan (31) having an insertable frame (32) with edge surfaces (34) that are not significantly pressure deformable, where the inside side surfaces of the frame are parallel to the central axis B-B of the open pan, and where each article or compact is surrounded by fine particles of a separating material; (D) evacuating air from the container and sealing the articles or compacts inside the container by means of top lid (36); (E) hot pressing the compacts at a pressure from 352.5 kg/cm2 to 3,172 kg/cm2 to provide simultaneous hot pressing and densification of the articles or compacts; (F) gradually cooling and releasing the pressure; and, (G) separating the articles or compacts from the container, where there is no heating of the compacts in the process before step (E).</description><edition>5</edition><language>eng</language><subject>BASIC ELECTRIC ELEMENTS ; CASTING ; ELECTRIC SWITCHES ; ELECTRICITY ; EMERGENCY PROTECTIVE DEVICES ; MAKING METALLIC POWDER ; MANUFACTURE OF ARTICLES FROM METALLIC POWDER ; PERFORMING OPERATIONS ; POWDER METALLURGY ; RELAYS ; SELECTORS ; SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG, OR MIXTURESCONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER ; TRANSPORTING ; WORKING CEMENT, CLAY, OR STONE ; WORKING METALLIC POWDER</subject><creationdate>1992</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=19920326&DB=EPODOC&CC=NZ&NR=234181A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,778,883,25551,76302</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19920326&DB=EPODOC&CC=NZ&NR=234181A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>IYER, NATRAJ CHANDRASEKAR</creatorcontrib><creatorcontrib>MALE, ALAN THOMAS</creatorcontrib><creatorcontrib>LOVIC, WILLIAM ROBERT</creatorcontrib><title>METHOD OF PRODUCTION OF COMPRESSED POWDER ELECTRICAL CONTACTS</title><description>A process of hot pressing of materials to form articles or compacts is characterized by the steps: (A) providing a compactable particulate mixture; (B) uniaxially pressing the particles without heating to provide article or compact (22); (C) placing at least one article or compact (22) in an open pan (31) having an insertable frame (32) with edge surfaces (34) that are not significantly pressure deformable, where the inside side surfaces of the frame are parallel to the central axis B-B of the open pan, and where each article or compact is surrounded by fine particles of a separating material; (D) evacuating air from the container and sealing the articles or compacts inside the container by means of top lid (36); (E) hot pressing the compacts at a pressure from 352.5 kg/cm2 to 3,172 kg/cm2 to provide simultaneous hot pressing and densification of the articles or compacts; (F) gradually cooling and releasing the pressure; and, (G) separating the articles or compacts from the container, where there is no heating of the compacts in the process before step (E).</description><subject>BASIC ELECTRIC ELEMENTS</subject><subject>CASTING</subject><subject>ELECTRIC SWITCHES</subject><subject>ELECTRICITY</subject><subject>EMERGENCY PROTECTIVE DEVICES</subject><subject>MAKING METALLIC POWDER</subject><subject>MANUFACTURE OF ARTICLES FROM METALLIC POWDER</subject><subject>PERFORMING OPERATIONS</subject><subject>POWDER METALLURGY</subject><subject>RELAYS</subject><subject>SELECTORS</subject><subject>SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG, OR MIXTURESCONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER</subject><subject>TRANSPORTING</subject><subject>WORKING CEMENT, CLAY, OR STONE</subject><subject>WORKING METALLIC POWDER</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1992</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZLD1dQ3x8HdR8HdTCAjydwl1DvH09wPxnP19A4Jcg4NdXRQC_MNdXIMUXH1cnUOCPJ0dfYCSfiGOziHBPAysaYk5xam8UJqbQc7NNcTZQze1ID8-tbggMTk1L7Uk3i_KyNjE0MLQ0ZigAgBPAyjh</recordid><startdate>19920326</startdate><enddate>19920326</enddate><creator>IYER, NATRAJ CHANDRASEKAR</creator><creator>MALE, ALAN THOMAS</creator><creator>LOVIC, WILLIAM ROBERT</creator><scope>EVB</scope></search><sort><creationdate>19920326</creationdate><title>METHOD OF PRODUCTION OF COMPRESSED POWDER ELECTRICAL CONTACTS</title><author>IYER, NATRAJ CHANDRASEKAR ; MALE, ALAN THOMAS ; LOVIC, WILLIAM ROBERT</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_NZ234181A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1992</creationdate><topic>BASIC ELECTRIC ELEMENTS</topic><topic>CASTING</topic><topic>ELECTRIC SWITCHES</topic><topic>ELECTRICITY</topic><topic>EMERGENCY PROTECTIVE DEVICES</topic><topic>MAKING METALLIC POWDER</topic><topic>MANUFACTURE OF ARTICLES FROM METALLIC POWDER</topic><topic>PERFORMING OPERATIONS</topic><topic>POWDER METALLURGY</topic><topic>RELAYS</topic><topic>SELECTORS</topic><topic>SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG, OR MIXTURESCONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER</topic><topic>TRANSPORTING</topic><topic>WORKING CEMENT, CLAY, OR STONE</topic><topic>WORKING METALLIC POWDER</topic><toplevel>online_resources</toplevel><creatorcontrib>IYER, NATRAJ CHANDRASEKAR</creatorcontrib><creatorcontrib>MALE, ALAN THOMAS</creatorcontrib><creatorcontrib>LOVIC, WILLIAM ROBERT</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>IYER, NATRAJ CHANDRASEKAR</au><au>MALE, ALAN THOMAS</au><au>LOVIC, WILLIAM ROBERT</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>METHOD OF PRODUCTION OF COMPRESSED POWDER ELECTRICAL CONTACTS</title><date>1992-03-26</date><risdate>1992</risdate><abstract>A process of hot pressing of materials to form articles or compacts is characterized by the steps: (A) providing a compactable particulate mixture; (B) uniaxially pressing the particles without heating to provide article or compact (22); (C) placing at least one article or compact (22) in an open pan (31) having an insertable frame (32) with edge surfaces (34) that are not significantly pressure deformable, where the inside side surfaces of the frame are parallel to the central axis B-B of the open pan, and where each article or compact is surrounded by fine particles of a separating material; (D) evacuating air from the container and sealing the articles or compacts inside the container by means of top lid (36); (E) hot pressing the compacts at a pressure from 352.5 kg/cm2 to 3,172 kg/cm2 to provide simultaneous hot pressing and densification of the articles or compacts; (F) gradually cooling and releasing the pressure; and, (G) separating the articles or compacts from the container, where there is no heating of the compacts in the process before step (E).</abstract><edition>5</edition><oa>free_for_read</oa></addata></record> |
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| language | eng |
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| subjects | BASIC ELECTRIC ELEMENTS CASTING ELECTRIC SWITCHES ELECTRICITY EMERGENCY PROTECTIVE DEVICES MAKING METALLIC POWDER MANUFACTURE OF ARTICLES FROM METALLIC POWDER PERFORMING OPERATIONS POWDER METALLURGY RELAYS SELECTORS SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG, OR MIXTURESCONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER TRANSPORTING WORKING CEMENT, CLAY, OR STONE WORKING METALLIC POWDER |
| title | METHOD OF PRODUCTION OF COMPRESSED POWDER ELECTRICAL CONTACTS |
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