Blow molding apparatus and process
A process of blow-molding a hollow double wall type article uses a mold incorporated with a heating and cooling system. The mold consists of male and female mold halves, each composed of an outer shell area having a contoured cavity surface part and an inner heat insulating area defined within the o...
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| creator | KANOH, YOSHIAKI YAMADA, AKIYOSHI |
| description | A process of blow-molding a hollow double wall type article uses a mold incorporated with a heating and cooling system. The mold consists of male and female mold halves, each composed of an outer shell area having a contoured cavity surface part and an inner heat insulating area defined within the outer shell area. The cavity surface part is made of mainly of a metallic material having a high thermal conductivity, and the inner heat insulating area is provided therein with means for reinforcing the outer shell area against a blow molding pressure and a mold clamping pressure. The inner heat insulating area provides a substantial thermal insulation against a transmission of heat thereto from the cavity surface part. The reinforcing means may be formed by a block of a non-metallic material having a low thermal conductivity. Preferably, the block is permeably porous so that it provides heat medium passages for the heating and cooling system. |
| format | Patent |
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The mold consists of male and female mold halves, each composed of an outer shell area having a contoured cavity surface part and an inner heat insulating area defined within the outer shell area. The cavity surface part is made of mainly of a metallic material having a high thermal conductivity, and the inner heat insulating area is provided therein with means for reinforcing the outer shell area against a blow molding pressure and a mold clamping pressure. The inner heat insulating area provides a substantial thermal insulation against a transmission of heat thereto from the cavity surface part. The reinforcing means may be formed by a block of a non-metallic material having a low thermal conductivity. Preferably, the block is permeably porous so that it provides heat medium passages for the heating and cooling system.</description><edition>6</edition><language>eng ; fre ; ger</language><subject>AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING ; INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES ; MAKING GRANULES OR PREFORMS ; PERFORMING OPERATIONS ; PREPARATION OR PRETREATMENT OF THE MATERIAL TO BESHAPED ; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIALCONTAINING PLASTICS ; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR ; SHAPING OR JOINING OF PLASTICS ; TRANSPORTING ; WORKING OF PLASTICS ; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL</subject><creationdate>1996</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=19961227&DB=EPODOC&CC=EP&NR=0361390B1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19961227&DB=EPODOC&CC=EP&NR=0361390B1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>KANOH, YOSHIAKI</creatorcontrib><creatorcontrib>YAMADA, AKIYOSHI</creatorcontrib><title>Blow molding apparatus and process</title><description>A process of blow-molding a hollow double wall type article uses a mold incorporated with a heating and cooling system. The mold consists of male and female mold halves, each composed of an outer shell area having a contoured cavity surface part and an inner heat insulating area defined within the outer shell area. The cavity surface part is made of mainly of a metallic material having a high thermal conductivity, and the inner heat insulating area is provided therein with means for reinforcing the outer shell area against a blow molding pressure and a mold clamping pressure. The inner heat insulating area provides a substantial thermal insulation against a transmission of heat thereto from the cavity surface part. The reinforcing means may be formed by a block of a non-metallic material having a low thermal conductivity. 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The mold consists of male and female mold halves, each composed of an outer shell area having a contoured cavity surface part and an inner heat insulating area defined within the outer shell area. The cavity surface part is made of mainly of a metallic material having a high thermal conductivity, and the inner heat insulating area is provided therein with means for reinforcing the outer shell area against a blow molding pressure and a mold clamping pressure. The inner heat insulating area provides a substantial thermal insulation against a transmission of heat thereto from the cavity surface part. The reinforcing means may be formed by a block of a non-metallic material having a low thermal conductivity. Preferably, the block is permeably porous so that it provides heat medium passages for the heating and cooling system.</abstract><edition>6</edition><oa>free_for_read</oa></addata></record> |
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| language | eng ; fre ; ger |
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| subjects | AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES MAKING GRANULES OR PREFORMS PERFORMING OPERATIONS PREPARATION OR PRETREATMENT OF THE MATERIAL TO BESHAPED RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIALCONTAINING PLASTICS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL |
| title | Blow molding apparatus and process |
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