Blow molding method and system
The invention discloses a blow molding method and system. The blow molding method comprises the following steps that a prepared material is heated and melted; a mold is closed and heated to the preset temperature; a parison is extruded to the upper end of the mold, and downward negative pressure tra...
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| creator | LI PENG LI HUI YANG KANG JIA CHAO XUE QI LIU SENHAI |
| description | The invention discloses a blow molding method and system. The blow molding method comprises the following steps that a prepared material is heated and melted; a mold is closed and heated to the preset temperature; a parison is extruded to the upper end of the mold, and downward negative pressure traction is supplied to the bottom of the mold at the same time, so that a cavity of the mold is rapidly filled with the parison; meanwhile, air is blown into the parison, so that the outer surface of the parison is attached to the inner surface of the cavity of the mold; and after the parison is subjected to pressure maintaining for a preset time, the mold is opened, and a finished product is taken out. According to the blow molding method provided by the invention, the process that mold closing is conducted at first, and then blanking is conducted is adopted; the parison is pulled through the negative pressure traction; after being subjected to blanking, the parison can rapidly and stably enter the cavity of the mol |
| format | Patent |
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The blow molding method comprises the following steps that a prepared material is heated and melted; a mold is closed and heated to the preset temperature; a parison is extruded to the upper end of the mold, and downward negative pressure traction is supplied to the bottom of the mold at the same time, so that a cavity of the mold is rapidly filled with the parison; meanwhile, air is blown into the parison, so that the outer surface of the parison is attached to the inner surface of the cavity of the mold; and after the parison is subjected to pressure maintaining for a preset time, the mold is opened, and a finished product is taken out. According to the blow molding method provided by the invention, the process that mold closing is conducted at first, and then blanking is conducted is adopted; the parison is pulled through the negative pressure traction; after being subjected to blanking, the parison can rapidly and stably enter the cavity of the mol</description><language>chi ; eng</language><subject>AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING ; INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES ; PERFORMING OPERATIONS ; 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>2016</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=20161221&DB=EPODOC&CC=CN&NR=106239869A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25555,76308</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20161221&DB=EPODOC&CC=CN&NR=106239869A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>LI PENG</creatorcontrib><creatorcontrib>LI HUI</creatorcontrib><creatorcontrib>YANG KANG</creatorcontrib><creatorcontrib>JIA CHAO</creatorcontrib><creatorcontrib>XUE QI</creatorcontrib><creatorcontrib>LIU SENHAI</creatorcontrib><title>Blow molding method and system</title><description>The invention discloses a blow molding method and system. The blow molding method comprises the following steps that a prepared material is heated and melted; a mold is closed and heated to the preset temperature; a parison is extruded to the upper end of the mold, and downward negative pressure traction is supplied to the bottom of the mold at the same time, so that a cavity of the mold is rapidly filled with the parison; meanwhile, air is blown into the parison, so that the outer surface of the parison is attached to the inner surface of the cavity of the mold; and after the parison is subjected to pressure maintaining for a preset time, the mold is opened, and a finished product is taken out. 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The blow molding method comprises the following steps that a prepared material is heated and melted; a mold is closed and heated to the preset temperature; a parison is extruded to the upper end of the mold, and downward negative pressure traction is supplied to the bottom of the mold at the same time, so that a cavity of the mold is rapidly filled with the parison; meanwhile, air is blown into the parison, so that the outer surface of the parison is attached to the inner surface of the cavity of the mold; and after the parison is subjected to pressure maintaining for a preset time, the mold is opened, and a finished product is taken out. According to the blow molding method provided by the invention, the process that mold closing is conducted at first, and then blanking is conducted is adopted; the parison is pulled through the negative pressure traction; after being subjected to blanking, the parison can rapidly and stably enter the cavity of the mol</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES PERFORMING OPERATIONS 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 method and system |
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