shrinkage by heat 中文意思是什麼
shrinkage by heat
解釋
熱收縮-
Temperature field of hollow ingot solidification is simulated by fem. to different mould, effect of heat transfer coefficient between inner sleeve and cooling medium and thickness of core refractory on final position of solidification, the highest temperature of inner sleeve against cooling medium, and shrinkage cavity and porosity are compared. in addition, change of temperature in typical position of core refractory is also compared
對空心鋼錠凝固過程的溫度場進行了有限元分析,對不同錠型結構的芯部換熱系數、耐火材料厚度對最終凝固位置、內筒壁最高溫度及縮孔疏鬆的影響進行了對比,並討論了耐火材料典型部位的溫度隨凝固時間的變化。 -
Abstract : temperature field of hollow ingot solidification is simulated by fem. to different mould, effect of heat transfer coefficient between inner sleeve and cooling medium and thickness of core refractory on final position of solidification, the highest temperature of inner sleeve against cooling medium, and shrinkage cavity and porosity are compared. in addition, change of temperature in typical position of core refractory is also compared
文摘:對空心鋼錠凝固過程的溫度場進行了有限元分析,對不同錠型結構的芯部換熱系數、耐火材料厚度對最終凝固位置、內筒壁最高溫度及縮孔疏鬆的影響進行了對比,並討論了耐火材料典型部位的溫度隨凝固時間的變化。 -
Based on the characteristics of silicon whisker, the research on the modification of pa6 by silicon whisker sio2 - jx was made, and the result showed that the tensile strength, impact strength, brinell hardness, and heat resistance increased with the increase of the content of the whisker ; sio2 - jx could replace short glass fiber in the modification of pa6, improving the heat distortion temperature, removing the appearance of glass fiber, reducing shrinkage and the cost
摘要利用晶須矽纖維狀的特性,對其填充于龍玻纖改性進行研究,結果表明,隨晶須用量的增加,材料的拉伸強度、沖擊強度,布氏硬度、耐熱溫度均得到提高;晶須矽可取代短玻纖使用,提高熱變形溫度、消除玻纖外露,降低收縮率及生產成本等。
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