| 摘要 |
The invention relates to the field of manufacture of metallic multilayer articles by welding in the solid phase with application of pressure and can be used in metallurgy, machine building, instrument-making and other branches of industry. The welding method in the solid phase of metallic plates includes assembly into a packet of combinable plates,heating of packet, positioning the packet between the rolls of different diameter, deformation of packet. In accordance with the invention, between the plates is established a damping layer, the packet is located between the rolls in such a way that the plate of the material with lower yield point at welding temperature is turned to the side of roll with smaller diameter. Heating packet and its deformation are conducted in the vacuum. In this case, heating is conducted in two stages, moreover, during the first stage up to 0.4- 0- 0.5 of meltingpoint of the material of plate with lower yield point, and during the second stage - by HF heating with a frequency, which ensures heating the material of layer to 0.92- 0- 0.95 of melting point of the material of damping layer. Method allows to obtain the articles with higher strength of connection of plates and straightness of welded packet. For achievement of the best result the plate turned to the side of roll with smaller diameter has larger thickness. Also for achievement of the best result as the material of damping layer is selected the copper. Furthermore, between the damping layer and the plate with lower yield point can be established a barrier metal layer, and niobium, tantalum, nickel may be used as material of barrier layer. |
