Three-step hydraulic precise forming die and method for rectangular corrugated pipe
The invention discloses a three-step hydraulic precise forming die and method for a rectangular corrugated pipe. The three-step hydraulic precise forming die is characterized in that a lower core shaft and a lower end cover are placed on the surface of the center of a lower guide plate, a rectangula...
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| creator | LYU ZHIYONG ZUO XINGYU LIU QIANG WANG WENHUA LIU JING LI LANYUN GE QIAN |
| description | The invention discloses a three-step hydraulic precise forming die and method for a rectangular corrugated pipe. The three-step hydraulic precise forming die is characterized in that a lower core shaft and a lower end cover are placed on the surface of the center of a lower guide plate, a rectangular pipe blank sleeves an assembly body formed by the lower core shaft and the lower end cover, a lower end die sheet sleeves the outer side of the lower end of the rectangular pipe blank, and the lower end die sheet makes contact with the lower end cover; positioning shape-limiting die sheets and middle die sheets are alternately arranged above the lower end die sheet and on the outer side of the rectangular pipe blank, the positioning shape-limiting die sheets are arranged on the uppermost layer and the lowermost layer, an upper end die sheet is arranged above the positioning shape-limiting die sheet on the uppermost layer, and the upper end die sheet sleeves the outer side of the upper end of the rectangular pipe |
| format | Patent |
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The three-step hydraulic precise forming die is characterized in that a lower core shaft and a lower end cover are placed on the surface of the center of a lower guide plate, a rectangular pipe blank sleeves an assembly body formed by the lower core shaft and the lower end cover, a lower end die sheet sleeves the outer side of the lower end of the rectangular pipe blank, and the lower end die sheet makes contact with the lower end cover; positioning shape-limiting die sheets and middle die sheets are alternately arranged above the lower end die sheet and on the outer side of the rectangular pipe blank, the positioning shape-limiting die sheets are arranged on the uppermost layer and the lowermost layer, an upper end die sheet is arranged above the positioning shape-limiting die sheet on the uppermost layer, and the upper end die sheet sleeves the outer side of the upper end of the rectangular pipe</description><language>chi ; eng</language><subject>AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKINGWITHOUT ESSENTIALLY REMOVING MATERIAL ; MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES,OTHERWISE THAN BY ROLLING ; MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL ; PERFORMING OPERATIONS ; PUNCHING METAL ; TRANSPORTING ; WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL</subject><creationdate>2021</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=20210824&DB=EPODOC&CC=CN&NR=113290101A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20210824&DB=EPODOC&CC=CN&NR=113290101A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>LYU ZHIYONG</creatorcontrib><creatorcontrib>ZUO XINGYU</creatorcontrib><creatorcontrib>LIU QIANG</creatorcontrib><creatorcontrib>WANG WENHUA</creatorcontrib><creatorcontrib>LIU JING</creatorcontrib><creatorcontrib>LI LANYUN</creatorcontrib><creatorcontrib>GE QIAN</creatorcontrib><title>Three-step hydraulic precise forming die and method for rectangular corrugated pipe</title><description>The invention discloses a three-step hydraulic precise forming die and method for a rectangular corrugated pipe. 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| language | chi ; eng |
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| subjects | AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKINGWITHOUT ESSENTIALLY REMOVING MATERIAL MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES,OTHERWISE THAN BY ROLLING MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL PERFORMING OPERATIONS PUNCHING METAL TRANSPORTING WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL |
| title | Three-step hydraulic precise forming die and method for rectangular corrugated pipe |
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