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Invention Grant
CN106852131B 制造包覆金属管的方法 有权

制造包覆金属管的方法
Abstract:
一种制造镍合金包覆钢管的方法，包括：提供镍合金包覆材料的中空圆柱体和钢的中空圆柱体，将所述镍合金包覆材料的中空圆柱体同心地放置在钢的中空圆柱体内或将所述钢的空心圆柱体同心地置于所述镍合金包覆材料的空心圆柱体内，形成复合坯料，将所述复合坯料加热至1121‑1260℃，挤出所述复合坯料，其中所述镍合金包覆材料包括6.0‑12.0wt％的钼、19.0‑27.0wt％的铬、最大值1.0wt％的钨、最大值0.6wt％的铝、最大值0.6wt％的钛、0.001‑0.05wt％的碳、0.001‑0.035wt％的氮、0.001‑0.3wt％的硅、最大值1.0wt％的铌、最大值2.5wt％的铁、最大值0.5wt％的锰、最大值0.015wt％的磷、最大值0.015wt％的硫、最大值1.0wt％的钴和余量的镍，并且可具有大于1312℃的固相点温度。
Abstract(English):

A method of producing a nickel alloy clad steel pipe including: providing a hollow cylinder of nickel alloy cladding material and a hollow cylinder of steel, placing the hollow cylinder of the nickel alloy cladding material concentrically inside the hollow cylinder of steel or the hollow cylinder of the steel concentrically inside the hollow cylinder of nickel alloy cladding material to form a composite billet, heating the composite billet to 1121-1260° C., and extruding the composite billet, wherein the nickel alloy cladding material comprises 6.0-12.0 wt. % molybdenum, 19.0-27.0 wt. % chromium, 1.0 wt. % maximum tungsten, 0.6 wt. % maximum aluminum, 0.6 wt. % maximum titanium, 0.001-0.05 wt. % carbon, 0.001-0.035 wt. % nitrogen, 0.001-0.3 wt. % silicon, 1.0 wt. % maximum niobium, 2.5 wt. % maximum iron, 0.5 wt. % maximum manganese, 0.015 wt. % maximum phosphorous, 0.015 wt. % maximum sulfur, 1.0 wt. % maximum cobalt, and the balance nickel and may have a solidus temperature greater than 1312° C.

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