| 摘要 |
PURPOSE:To obtain a product which has substantial strength to creep rupture and has a good casting surface with less defects by using a capped cast pipe made by an ordinary casting method or a capped forging pipe or capped forge- drawn pipe as a drawing bar and producing a titled cast pipe by a melting method. CONSTITUTION:The figure shows a pipe 1 produced by melting a straight pipe, electrodes 2 manufactured of a raw material, a metallic mold 3, molten slag baths 4, molten metal pools 6, slag films 6, a drawing bar 9 for a relatively short capped cast pipe produced by an ordinary casting method, feel rollers for the electrodes 2, a drawing device 9, an electric power source 10 and cooling water 11. The bar 7 is first inserted into the part of the baths 4 in the mold 3 and the electrodes 2 conducted with electricity there are supplied into the mold 3 cooled by the water 11, where the electrodes are electroslag-melted and are deposited on the bar 7. The electrode 2 materials are thereafter melted continuously so as to be successively deposited on the already deposited metal and at the same time the bar is drawn by the device 9, by which the capped integrally cast pipe is continuously obtd. |
