Preparation method of large-diameter seamless steel pipe
The invention is suitable for the field of seamless steel tube manufacturing, and provides a preparation method of a large-diameter seamless steel tube, which comprises the following steps: step 1, preparing a blank; step 2, heating in an annular furnace; step 3, punching and rolling; 4, continuous...
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| creator | LI JINRONG LI BOWANG LU CHAO LI HAIJIE SUN BO |
| description | The invention is suitable for the field of seamless steel tube manufacturing, and provides a preparation method of a large-diameter seamless steel tube, which comprises the following steps: step 1, preparing a blank; step 2, heating in an annular furnace; step 3, punching and rolling; 4, continuous rolling is conducted; 5, determining the outer diameter; and 6, air cooling is carried out for temperature reduction. A large-section blank is replaced with a small-section blank, the rack and the ejector head are redesigned, and the method has great significance in completing the capacity target of a company, reducing the cost and improving the competitiveness.
本发明适用于无缝钢管制造领域，提供了一种大口径无缝钢管的制备方法，包括以下步骤：步骤1、准备坯料；步骤2、环形炉加热；步骤3、穿孔轧制；步骤4、连轧轧制；步骤5、确定外径；步骤6、空冷降温。本发明使用小断面的坯子代替大断面的坯子，重新设计机架和顶头，对于完成公司产能目标、降成本和提高竞争力具有重大意义。 |
| format | Patent |
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本发明适用于无缝钢管制造领域，提供了一种大口径无缝钢管的制备方法，包括以下步骤：步骤1、准备坯料；步骤2、环形炉加热；步骤3、穿孔轧制；步骤4、连轧轧制；步骤5、确定外径；步骤6、空冷降温。本发明使用小断面的坯子代替大断面的坯子，重新设计机架和顶头，对于完成公司产能目标、降成本和提高竞争力具有重大意义。</description><language>chi ; eng</language><subject>MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL ; PERFORMING OPERATIONS ; PUNCHING METAL ; ROLLING OF METAL ; TRANSPORTING</subject><creationdate>2024</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=20240430&DB=EPODOC&CC=CN&NR=117943408A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25563,76418</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20240430&DB=EPODOC&CC=CN&NR=117943408A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>LI JINRONG</creatorcontrib><creatorcontrib>LI BOWANG</creatorcontrib><creatorcontrib>LU CHAO</creatorcontrib><creatorcontrib>LI HAIJIE</creatorcontrib><creatorcontrib>SUN BO</creatorcontrib><title>Preparation method of large-diameter seamless steel pipe</title><description>The invention is suitable for the field of seamless steel tube manufacturing, and provides a preparation method of a large-diameter seamless steel tube, which comprises the following steps: step 1, preparing a blank; step 2, heating in an annular furnace; step 3, punching and rolling; 4, continuous rolling is conducted; 5, determining the outer diameter; and 6, air cooling is carried out for temperature reduction. A large-section blank is replaced with a small-section blank, the rack and the ejector head are redesigned, and the method has great significance in completing the capacity target of a company, reducing the cost and improving the competitiveness.
本发明适用于无缝钢管制造领域，提供了一种大口径无缝钢管的制备方法，包括以下步骤：步骤1、准备坯料；步骤2、环形炉加热；步骤3、穿孔轧制；步骤4、连轧轧制；步骤5、确定外径；步骤6、空冷降温。本发明使用小断面的坯子代替大断面的坯子，重新设计机架和顶头，对于完成公司产能目标、降成本和提高竞争力具有重大意义。</description><subject>MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL</subject><subject>PERFORMING OPERATIONS</subject><subject>PUNCHING METAL</subject><subject>ROLLING OF METAL</subject><subject>TRANSPORTING</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2024</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZLAIKEotSCxKLMnMz1PITS3JyE9RyE9TyEksSk_VTclMBAqlFikUpybm5qQWFysUl6Sm5igUZBak8jCwpiXmFKfyQmluBkU31xBnD93Ugvz41OKCxOTUvNSSeGc_Q0NzSxNjEwMLR2Ni1AAAGdYubw</recordid><startdate>20240430</startdate><enddate>20240430</enddate><creator>LI JINRONG</creator><creator>LI BOWANG</creator><creator>LU CHAO</creator><creator>LI HAIJIE</creator><creator>SUN BO</creator><scope>EVB</scope></search><sort><creationdate>20240430</creationdate><title>Preparation method of large-diameter seamless steel pipe</title><author>LI JINRONG ; LI BOWANG ; LU CHAO ; LI HAIJIE ; SUN BO</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_CN117943408A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>chi ; eng</language><creationdate>2024</creationdate><topic>MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL</topic><topic>PERFORMING OPERATIONS</topic><topic>PUNCHING METAL</topic><topic>ROLLING OF METAL</topic><topic>TRANSPORTING</topic><toplevel>online_resources</toplevel><creatorcontrib>LI JINRONG</creatorcontrib><creatorcontrib>LI BOWANG</creatorcontrib><creatorcontrib>LU CHAO</creatorcontrib><creatorcontrib>LI HAIJIE</creatorcontrib><creatorcontrib>SUN BO</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>LI JINRONG</au><au>LI BOWANG</au><au>LU CHAO</au><au>LI HAIJIE</au><au>SUN BO</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Preparation method of large-diameter seamless steel pipe</title><date>2024-04-30</date><risdate>2024</risdate><abstract>The invention is suitable for the field of seamless steel tube manufacturing, and provides a preparation method of a large-diameter seamless steel tube, which comprises the following steps: step 1, preparing a blank; step 2, heating in an annular furnace; step 3, punching and rolling; 4, continuous rolling is conducted; 5, determining the outer diameter; and 6, air cooling is carried out for temperature reduction. A large-section blank is replaced with a small-section blank, the rack and the ejector head are redesigned, and the method has great significance in completing the capacity target of a company, reducing the cost and improving the competitiveness.
本发明适用于无缝钢管制造领域，提供了一种大口径无缝钢管的制备方法，包括以下步骤：步骤1、准备坯料；步骤2、环形炉加热；步骤3、穿孔轧制；步骤4、连轧轧制；步骤5、确定外径；步骤6、空冷降温。本发明使用小断面的坯子代替大断面的坯子，重新设计机架和顶头，对于完成公司产能目标、降成本和提高竞争力具有重大意义。</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL PERFORMING OPERATIONS PUNCHING METAL ROLLING OF METAL TRANSPORTING |
| title | Preparation method of large-diameter seamless steel pipe |
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