drop weight tear test

基本解釋

What variation rule of impact toughness and drop weight tear test with temperature were displayed. The high toughness of pipedesign steel could meet the requirement of pipe steel.
給出了沖擊韌性和落錘撕裂性能隨溫度變化的規(guī)律，這種管線鋼能夠滿足管線設(shè)計的需要。
The method and standard of drop weight tear test were described. It was also discussed how to evaluate the capability of pipeline steel to transit from toughness to fracture by DWTT.
論述了落錘撕裂試驗的方法和標(biāo)準(zhǔn)，并對用DWTT來評定管材及其焊接接頭的韌脆轉(zhuǎn)化能力進行了探討。