鑄模溫度 的英文怎麼說
中文拼音 [zhùmówēndù]
鑄模溫度
英文
mold temperature-
The mixture is poured into the mould preheated to the same temperature.
將混合物注入已預熱到同樣溫度的鑄模內。The results show that the heat preservation coating and its proper thickness are favorable to the enhancement of filling mold speed of aluminium alloy ; the higher the pouring temperature is and the larger the ratio of hollow areas of vertical pouring is, the faster the speed of filling mold of aluminium alloy is ; if the mold is too thick or too thin, it may decrease the speed of filling mold ; the proper length and the area of vertical pouring are favorable to the enhancement of the speed of filling mold ; although negatire - pressure may improve filling the speed, too high negatire - pressure may enlarge the flaw in casting
結果表明:保溫塗料及一定的塗層厚度有利於提高鋁液的充型速度;澆注溫度越高、直澆道空心面積率越大,鋁液充型速度越快;模樣厚度太厚或太薄,均會使鋁液充型速度降低;一定的直澆道長度及直澆道面積有利於提高鋁液的充型速度;施加負壓會使鋁液的充型速度大大提高,但負壓過大會增大鑄造缺陷。The ultimate aim of the numerical simulation on temperature field in castings solidification process is for eliminating shrinkage / porosity or limiting them within the user ' s permission
鑄件凝固過程溫度場數值模擬為最終消除縮孔縮松缺陷或將其限制在用戶允許的范圍內,以獲得質量合格的產品提供了非常有效的手段。The temperature of the lead should be such that it is just enough to produce satisfactory castings in a heat-stabilized mold.
鉛液的溫度要正好適宜於在熱穩定的模具中鑄出合格鑄件。According to numerical simulation and molten steel solidification mechanism, in the paper, the restrict relationship had been setup between casting speed and molten steel level and average mould tapping section thickness as well as its shell temperature at tapping spout
本文基於數值模擬和鋼液凝固機理,建立起結晶器內鋼液液位和鑄坯拉速對其出鋼口處鋼液截面平均溫度和坯殼溫度的制約關系。Testing results are analyzed, then the boundary condition ( the heat transfer coefficient of and the water density ) for computer simulation is acquired. through simulation in computer using the all - purpose computer simulation software secondary cooling in slab continuous casting and test results, the influence of the factor such as casting speed, casting temperature, shell thickness and secondary cooling system are analyzed. the secondary cooling system is evaluated, the reasons of crack are analyzed
應用模擬軟體和實驗數據對寶鋼1930鑄機進行了模擬計算,分析了拉速、配水制度、過熱度對鑄坯溫度場和坯殼厚度的影響;對寶鋼1930鑄機的二冷制度進行了評估,分析了產生裂紋的原因;並對二冷制度進行優化,提出了改進建議。Abstract : water modeling of the six - strand caster tundish shows that the original design of the tundish can not meet the technical requirements for inclusion floatation and temperature homogenization
文摘:通過水力學模擬六流連鑄中間包后發現,原設計的中間包在夾雜物的上浮及溫度的均勻性方面還存在不足,不能很好地滿足生產工藝要求。The alloy component and the process parameters of the precision casting ( including the exit temperature from furnace, pouring temperature, mould preheating temperature, holding time, cooling form ) have a certain influence on the problem of the blade brittles
摘要合金含量、精鑄工藝參數(出爐溫度、澆鑄溫度、模殼預熱溫度、保溫時間、冷卻方式)對葉片脆性問題存在一定的影響。The great engineering software ansys was used to simulate the induction heating process of a continuous casting square billet in multi - physical coupling field based on the electromagnetic induction and heat exchange theory
摘要根據電磁感應理論及傳熱基本原理,利用大型工程軟體ansys對連鑄方坯的感應補熱過程進行了多物理場耦合的有限元模擬,並對鑄坯斷面上的溫度梯度、磁場分佈等進行了分析。Abstract : the method to determine the shape of solidification shell in the process of continuous casting of steel is studied. by establishing the model of stable temperature field, with the observation of first and second boundary value on the exterior of the ingot, the algorithm method to identify the shape of solidification shell is given with boundary variation in existing observation condition. numerical test shows that the method is valid
文摘:討論了鋼鐵工業連鑄過程中結晶器內連鑄坯凝殼形狀的確定方法.通過建立穩定溫度場模型,在現有觀測條件下,用邊界變分方法給出了確定鑄坯凝殼形狀的辨識演算法.實驗數據顯示此方法是有效的Thermal and structure character of straight reheating furnace were analyzed in csp technological process. coupling with heat conduction differential equations of the thin slab and the furnace lining, the mathemat ical model of heat transfer is established in the long one dimension furnace by using zone method for making the model of radiant heat transfer. the effect of the moving velocity and kinds of the slab on temperature distribution in the furnace is discussed based upon the solutions to the mathematical model
通過分析csp工藝中直通式輥底加熱爐的熱工及結構特性,採用區域法建立爐內輻射換熱數學模型,與加熱爐內連鑄坯及爐襯的一維導熱方程相耦合,建立長一維直通式輥底加熱爐爐內傳熱數學模型.通過對數學模型的求解,研究分析了不同的薄板坯移動速度及鋼種對加熱爐爐內溫度分佈的影響Abstract : the mathematical model of dhcr heating of continuous casting slab is established, and solved by using the finite difference method, then the temperature distribution and heating time during different heating periods are found. this model can be used for determining the dhcr heating system of continuous casting slab
文摘:建立了連鑄板坯直接熱裝加熱數學模型,並用有限差分法進行求解,獲得了各期加熱溫度分佈及加熱時間,此模型可用於連鑄板坯直接熱裝加熱制度的確定。Three factors, such as pull - up type, the materials and structure of crystallizing mould, and the temperature field in crystallizing mould, influencing on continuous up - casting for aluminum were analyzed, which laid the foundation of the application to continuous up - casting technology for aluminum bar
分析研究了引拔拉坯制式、結晶模材料及結構、結晶模內溫度場三因素對鋁上引連鑄的影響規律,結果表明上引連續鑄造過程中施加適當頻率的反推和反推量有利於桿坯連鑄的持續,結晶模自身的性能及模內溫度場的狀態對金屬鋁桿上引連鑄工藝的實現有直接影響。Numerical simulation of the flow - thermal field in the process of penetration casting
滲流鑄造過程中流場溫度場的數值模擬The coupled turbulent flow field and temperature field are simulated by finite element method ; the influence of casting speed on the turbulent flow field and temperature field in the melting bath and the interaction between those two field are analyzed ; the variation tendency of the heat flux intensity between the melting bath and casting roll and law of variation with changes of casting speed in the process of solidification are given ; a comparison between the simulation results and experimental results demonstrates their good agreement ; and the mechanism of the heat flux variation is identified by analysis on the temporature gradient and development of solidification within the melting bath and its influence on the variation of the heat flux intensity
採用有限元法模擬了雙輥鑄軋不銹鋼過程的流熱耦合問題;分析了鑄軋速度對熔池內流場、溫度場的影響以及流場與溫度場之間的相互影響;給出了凝固過程中熔池與鑄軋輥之間的熱流密度變化趨勢及隨鑄軋速度的變化規律,並把此模擬的結果與試驗的結果相比較,吻合較好;通過熔池內溫度場及溫度梯度分析了熔池內凝固的發展及其對熱流密度變化的影響。Strand temperature is measured on site in ba ) steel. measurement results compared with simulation result ; wiuich means that the deviation is less than 3 %. it showa that the simulation result and all - purpose computer simulation software of secondary cooling in slab continuous casting are reliable
還在寶鋼現場測試了鑄坯的溫度,與模擬計算結果比較,偏差小於3 ,說明模擬結果可靠,板坯連鑄二冷計算機模擬通用軟體可行。Abstract : according to the site condition of the bisc, a mathematical model of two - dimensional unsteady solidification and heat transfer was established for the bloom caster in the mold. the mathematical model was solved with a finite difference method to characterize the temperature profiles and thickness of the solidified shell in the mold, the effects of casting speed on thickness of the solidified shell are also studied
文摘:根據包鋼的現場條件,建立了大方坯連鑄機結晶器內二維非穩態凝固傳熱數學模型,採用有限差分法對數學模型求解,得出結晶器中鑄坯的溫度分佈規律和凝固坯殼生成規律,同時研究了拉坯速度對坯殼生成厚度的影響A point in the cast piece and a point in the cast modl are chosen as referencial points, the results of the two points ' temperature distrbute by computing and testing are compared : causes for the clearance are analysed
為了驗證計算結果的準確性,在鑄件及鑄模上各選一個參考點,對參考點溫度值隨時間的變化,進行了現場測定,並將計算結果與實測值做了對比,最後分析了誤差產生的原因。The object of my research work is to build a complete mathematical model for the secondary cooling process during cc process, and identify the unknown controlling parameters in it
本項研究工作的目標是建立完整的連鑄二冷過程的傳熱數學模型以及利用鑄坯的表面溫度來辨識出二冷段一些噴淋工藝參數。Abstract : thermal and structure character of straight reheating furnace were analyzed in csp technological process. coupling with heat conduction differential equations of the thin slab and the furnace lining, the mathemat ical model of heat transfer is established in the long one dimension furnace by using zone method for making the model of radiant heat transfer. the effect of the moving velocity and kinds of the slab on temperature distribution in the furnace is discussed based upon the solutions to the mathematical model
文摘:通過分析csp工藝中直通式輥底加熱爐的熱工及結構特性,採用區域法建立爐內輻射換熱數學模型,與加熱爐內連鑄坯及爐襯的一維導熱方程相耦合,建立長一維直通式輥底加熱爐爐內傳熱數學模型.通過對數學模型的求解,研究分析了不同的薄板坯移動速度及鋼種對加熱爐爐內溫度分佈的影響分享友人