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\u042d\u0442\u043e\u0442 Hydraulic Expander<\/strong> is core forming equipment for OCTG (Oil Country Tubular Goods) production lines, specially designed for diameter expansion, inner\u2011outer surface finishing and dimensional correction of seamless oil casing, tubing and drill pipes. It eliminates pipe ovality, uneven wall thickness and dimensional deviation after piercing and rolling, ensuring consistent outer diameter, roundness and straightness of OCTG pipes.<\/p>\n Adopting high\u2011precision hydraulic drive and modular expansion die sets, it delivers uniform radial expansion force. It is compatible with carbon steel, alloy steel and high\u2011strength steel grades for OCTG, supporting batch production with stable performance, low deformation rate and high dimensional repeatability. It perfectly matches downstream heat treatment, threading and coupling processes to meet API Spec 5CT standards.<\/p>\n Uniform hydraulic expansion straightens pipe ovality, corrects uneven wall thickness and out-of-tolerance inner\/outer diameter after piercing and rolling, strictly matching OCTG dimensional tolerance required by API standards.<\/p><\/div>\n Relieve residual stress generated during tube piercing and hot rolling, effectively preventing pipe bending, distortion or cracking in subsequent heat treatment, threading and end upsetting processes.<\/p><\/div>\n Smooth inner tube surface, eliminate indentations, wrinkles and local deformation; greatly boost concentricity, laying reliable foundation for high-precision threading and coupling assembly.<\/p><\/div>\n Flexibly fit various casing & tubing OD ranges, compatible with multiple steel grades for J55, N80, P110 and other API 5CT OCTG products, easy specification switching for mixed batch production.<\/p><\/div>\n Full circumferential synchronous hydraulic expansion ensures consistent expansion deformation along entire pipe length; fewer rejected pipes, lowering production cost and improving finished product qualification rate.<\/p><\/div>\n Matched with automatic feeding and positioning, easy parameter adjustment; low maintenance cost, stable long-term continuous running suitable for high-volume seamless OCTG production lines.<\/p><\/div>\n<\/li>\n<\/ul>","protected":false},"featured_media":4064,"template":"","meta":{"_acf_changed":false},"product-category":[20],"class_list":["post-3620","product","type-product","status-publish","has-post-thumbnail","hentry","product-category-octg-production-line"],"acf":[],"_links":{"self":[{"href":"https:\/\/gh-petro.com\/ru\/wp-json\/wp\/v2\/product\/3620","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/gh-petro.com\/ru\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/gh-petro.com\/ru\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/gh-petro.com\/ru\/wp-json\/wp\/v2\/media\/4064"}],"wp:attachment":[{"href":"https:\/\/gh-petro.com\/ru\/wp-json\/wp\/v2\/media?parent=3620"}],"wp:term":[{"taxonomy":"product-category","embeddable":true,"href":"https:\/\/gh-petro.com\/ru\/wp-json\/wp\/v2\/product-category?post=3620"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}\u041d\u0430\u0448\u0438 \u043f\u0440\u0435\u0438\u043c\u0443\u0449\u0435\u0441\u0442\u0432\u0430<\/h3>\n
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Precise dimensional correction<\/strong><\/p>\n<\/div>\n<\/div>\n<\/li>\nEliminate internal residual stress<\/strong><\/p>\n<\/div>\n<\/div>\n<\/li>\nImprove roundness & inner surface quality<\/strong><\/p>\n<\/div>\n<\/div>\n<\/li>\nWide adaptability for OCTG specifications<\/strong><\/p>\n<\/div>\n<\/div>\n<\/li>\nStable expansion uniformity & high yield rate<\/strong><\/p>\n<\/div>\n<\/div>\n<\/li>\nHigh automation & easy operation<\/strong><\/p>\n<\/div>\n