TY  - Data
T1  - Collection of papers on the design and development of key equipment and tools for polar drilling
A1  - chi shenggao
DO  - 10.12072/ncdc.SRIPE.db1685.2022
PY  - 2022
DA  - 2022-02-25
PB  - National Cryosphere Desert Data Center
AB  - From 2018 to 2021, five papers on the design and development of key equipment and tools for polar drilling were published in Jingzhou and Wuhan, Hubei Province, including the research on low temperature heat treatment process, low temperature welding process, impregnated tooth formula, etc. The expansion temperature curves of low alloy fine grain steel for - 50 ℃ at different T 8 / 5 were measured by Gleeble 3800 thermal simulator. The microstructure and hardness of the thermal simulation samples were observed by optical microscope and microhardness tester. By analyzing the continuous cooling transformation (CCT) characteristics of low alloy fine grain steel used at - 50 ℃, the sh-cct curve of HAZ of low alloy fine grain steel used at - 50 ℃ was obtained.
DB  - NCDC
UR  - http://www.ncdc.ac.cn/portal/metadata/9945235f-f0bc-4ddd-b073-9f27ea1198a8
ER  -