| 摘要 |
FIELD: metallurgy. ^ SUBSTANCE: heating stage is performed by means of the main heater 25, which provides local heating of defective section C and pressure welding of defective section C owing to compression force created at thermal expansion, as well as peripheral heating stage providing the heating of periphery and environment of heating zone HZ1, which is heated at local heating stage by means of additional heater 26; after that, cooling stage is performed, at which heating zone HZ1 and heating zone HZ2 are cooled simultaneously. ^ EFFECT: providing reliable recovery of defective section formed in metal element and increasing its service life. ^ 10 cl, 1 ex, 8 dwg |
