TY  - Data
T1  - Collection of Research 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 research papers were published in Jingzhou and Wuhan, Hubei Province, regarding the design and development of key equipment and tools for polar drilling. The content of these papers includes research on low-temperature heat treatment processes, low-temperature welding processes, and impregnated tooth formulations. The Gleeble3800 thermal simulator was used to determine the expansion-temperature curves of low-alloy fine-grained steel for -50°C applications at different t8/5 values. Optical microscopes and microhardness testers were employed to observe the microstructure and test the hardness of the thermally simulated samples. By analyzing the continuous cooling transformation (CCT) characteristics of the low-alloy fine-grained steel for -50°C applications, the SH-CCT curve for the heat-affected zone (HAZ) of this steel at -50°C was obtained.
DB  - NCDC
UR  - http://www.ncdc.ac.cn/portal/metadata/9945235f-f0bc-4ddd-b073-9f27ea1198a8
ER  -