Heat Treatment of Heavy Forgings with diameter 1700mm
In order to establish a suitable heat treatment process after forging for the heavy forgings to prevent “grain inheritance”, a heat treatment process including pretreatments, pre-heating, normalization, super-cooling and dehydrogenation is proposed. The heavy forgings with the ratio 1.3 of largest diameter 1700mm to its length 1260mm are manufactured by two times upsetting and elongating process. The results show that the heavy forgings treated according to the forging process and the heat treatment process are all qualified and up to the standards of supersonic inspection.
Xiaoming Sang, Pengcheng Wang, Liqun Ai, Yungang Li and Jinglong Bu
J. H. Su et al., "Heat Treatment of Heavy Forgings with diameter 1700mm", Advanced Materials Research, Vols. 284-286, pp. 2388-2391, 2011