一重技术
一重技術
일중기술
CFHI TECHNOLOGY
2015年
4期
44-48
,共5页
半高速钢%工作辊%锻造%加工图
半高速鋼%工作輥%鍛造%加工圖
반고속강%공작곤%단조%가공도
semi-high speed steel%work roll%forging%processing map
采用Gleeble-3500热模拟试验机对一种自行设计的工作辊用半高速钢进行了热压缩试验，测得了该半高速钢在温度为1000~1150℃、应变速率为0.001~1 s-1变形条件下的应力-应变曲线，建立起该半高速钢的热变形方程及热加工图。研究结果表明该半高速钢的热变形激活能为622.3 kJ/mol。根据其热加工图， 1000~1050℃、应变速率0.001~0.01 s-1以及1050~1150℃、应变速率为0.001~1 s-1，为该半高速钢最佳锻造条件。
採用Gleeble-3500熱模擬試驗機對一種自行設計的工作輥用半高速鋼進行瞭熱壓縮試驗，測得瞭該半高速鋼在溫度為1000~1150℃、應變速率為0.001~1 s-1變形條件下的應力-應變麯線，建立起該半高速鋼的熱變形方程及熱加工圖。研究結果錶明該半高速鋼的熱變形激活能為622.3 kJ/mol。根據其熱加工圖， 1000~1050℃、應變速率0.001~0.01 s-1以及1050~1150℃、應變速率為0.001~1 s-1，為該半高速鋼最佳鍛造條件。
채용Gleeble-3500열모의시험궤대일충자행설계적공작곤용반고속강진행료열압축시험，측득료해반고속강재온도위1000~1150℃、응변속솔위0.001~1 s-1변형조건하적응력-응변곡선，건립기해반고속강적열변형방정급열가공도。연구결과표명해반고속강적열변형격활능위622.3 kJ/mol。근거기열가공도， 1000~1050℃、응변속솔0.001~0.01 s-1이급1050~1150℃、응변속솔위0.001~1 s-1，위해반고속강최가단조조건。
Hot compressive experiment of a designed semi-high speed steel for work roll was carried out on Gleeble-3 500 thermo-simulation machine. The stress-strain curves from 1 000~1 150℃and with strain rate from 0.001 s-1 to 1 s-1 were acquired. The thermal deformation equation and processing map were established. The results showed that the thermal deformation activation energy of the semi-high speed steel was 622.3 kJ/mol and its optimal process parameters obtained were from 1 000~1 150℃with strain rate change of 0.001 s-1 to 1 s-1 and from 1 000~1 150℃with strain rate range of 0.001 s-1 to 1 s-1.
