熱熔模型 的英文怎麼說
中文拼音 [rèróngmóxíng]
熱熔模型
英文
heat-disposable pattern-
Thermal models show that even if the asteroids assembled immediately after the formation of the chondrules, 26al heating would have raised temperatures in the interiors of ordinary - chondrite bodies to a maximum of 1, 100 degrees c ? high enough to cause melting of metals and sulfides but too low to melt silicate minerals extensively and differentiate an asteroid
熱模型顯示，即使小行星在球粒形成之後立刻聚合，鋁26的加熱最多也只能將普通球粒隕石內的溫度提高到1100 ，雖可使金屬和硫化物熔化，但並不足以將矽酸鹽礦物大量熔化並造成小行星各層分異。Through the research of crosslinking of matrix resin, heating treatment of composite and mixing of different polymer, we draw some conclusions : 1 、 percolation theory can explain the phenomenon of the jump of resistance when the content of cb reach a critical volume ; 2 、 based on ohm conduct theory, abounded to the percolation the wbibull statistical theory and other theory, an adapted theory was obtained to explain the jump of resistance and the other phenomenon ; 3 、 the ntc phenomenon was eliminated by crosslinking the matrix of conductive composite, at the same time the stability of composite was improved
通過對基體樹脂的交聯、復合材料的熱處理、聚合物共混物的研究得出了如下的結論： 1 、滲濾理論能夠很好的解釋導電粒子含量達到某一值時電導率劇增的問題； 2 、在歐姆導電模型的基礎上，綜合應用了weibull統計理論模型，結合原來的體積膨脹等理論，成功的解釋了ptc復合材料在基體材料熔點附近的跳變問題、 ntc現象以及熱循環穩定性等問題； 3 、有機ptc導電復合材料經硅烷交聯以後能夠消除ntc現象，改善了導電復合材料的穩定性能。Combining the unstable heat conduction in crystal layer with heat transfer of undeveloped slug flow in a vertical tube, a time - progression model of crystal layer growth in the bubble column crystallizer pipe is proposed, the calculation results from the numerical method agree well with the experimental data. under certain operating conditions, the periodical arrival of gas plugs can cause crystallization and partial re - melting occur in the crystal - melt interface
結合未充分發展彈狀流的傳遞特徵和晶層內不穩定導熱，提出了鼓泡塔結晶器管內晶層生長的時間級聯模型，與實驗值吻合良好.特定操作條件下，隨彈狀泡的到來和離去，結晶界面可發生結晶-部分重熔Studying the heat - mass transfer and multi - spices electric - chemical reaction, a dynamic temperature model was deduced for molten - carbonate fuel cell stack. the thermal radiation, shift reaction, and the change of gas spices were considered in this model. establishing momentum equation, the paper has developed a 3d temperature and flow fields model for mcfc stack based on cfd technique
建立了熔融碳酸鹽燃料電池堆內部單體的暫態溫度模型，並考慮了電堆的輻射換熱、轉換反應、反應氣體組分變化對溫度場的影響；根據mcfc的微分控制方程組，考慮氣體組分的熱力學性質及動量變化的影響，利用數值分析方法求解熔融碳酸鹽燃料電池堆的三維流場與溫度場，分析了各作用因素對熔融碳酸鹽燃料電池堆溫度分佈的影響機制。Differential scanning calorimeter ( dsc ) combined with melt fluxing technique was used to realize undercooling of melt and its specific heat was measured at the same time, and its thermodynamics were calculated simultaneously and compared to four well - known models
本文將差示掃描量熱法（ dsc ）和助熔劑處理技術相結合，研究了熔體的過冷現象，測量了過冷狀態下熔體的比熱，計算了過冷熔體凝固過程中的其它熱力學參數，並與四種近似模型進行了比較分析。Abstract : according to characters of different research ways, the research development of thermodynamic models of metallic melts is systematically introduced, such as solution model method, geometrical model method, interaction coefficient method, analytical method and experienced model method
文摘:根據不同研究方法的特點，綜述了溶液模型法、幾何模型法、相互作用系數法、解析計演算法以及經驗模型法等金屬熔體熱力學模型的研究進展，並對這些方法進行了簡要的評述。Following these two examples of two and three phases, regarding ternary and quarternary metallic melts involving eutectic as melts consisting of three and four non - homogeneuos solutions correspondingly, and using thermo - dynamic parameters of binary metallic melts involving eutectic, calculating models of mass action concentrations for ternary symmetrical melts formed from similar metastable compounds, ternary unsymmetrical melts formed from unsimilar metastable compounds and quarternary metallic melts involving eutectic have been formulated
仿照這兩個二、三相熔體的例子，將含共晶體三、四元金屬熔體看作由3 ， 4個溶液組成的非均相熔體，並利用含共晶體二元金屬熔體的有關熱力學參數，針對由同類亞穩態化合物組成的對稱型三元系、不同類型亞穩態化合物組成的非對稱型三元系及四元系含共晶體金屬熔體，制定了相應的作用濃度計算模型。The calculated results are in agreement with the measured ones, indicating that according to the flow rate and composition of the exhaust gas and the mass and the carbon content of the liquid iron, the carbon content of steel bath can be dynamically determined ; with the aid of thermodynamic equilibrium analysis, the dynamic variation of temperature of the steel bath can be forecasted from the dynamic carbon content and the data from the exhaust gas analysis system
該模型計算結果與檢測結果吻合較好，這表明：通過煙氣流量、成分及鐵水質量和初始碳含量可動態地確定熔池中的碳含量；以動態確定的碳含量為基礎，結合爐氣分析數據，再經熱力學平衡分析，可預測熔池溫度的動態變化。In order to develop the new die steel dm9, which is worked in heavy load conditions, this paper has studied the theoretical basis of die steel alloy design and metallography theory, and put forward the procedures of alloy design for engineering application. and melting, forging, heat treatment, micro - structure and properties of dm9 die steel have also been studied
本文針對受重載荷作用的新型冷作模具鋼dm9的研製，探討了冷作模具鋼合金設計的理論依據，結合金屬學理論，提出了合金設計工程應用的步驟，並對dm9鋼進行了熔煉鍛軋、熱處理工藝、組織結構及性能研究。Combining with the energy fluxes balance above fuel surface, the simulation and calculation of transient heat conduction of the pe fuel with liquid layer while melting and pyrolyzing are considered by use of the moving coordinates. the calculated regression rate of the pe fuel approximately tallies with the same kind of hybrid rocket motor test data from the abroad
建立了pe燃料的熔化、熱解、導熱模型，應用動坐標系，結合燃料表面熱環境，對具有液體層的pe燃料的熔化、熱解和內部瞬態導熱過程進行了模擬計算，計算的pe燃料退移速率與國外同類試驗的測量結果符合較好。Test method for hot deformation of investment casting shell
熔模鑄造型殼高溫熱變形試驗方法In order to avoid the shell cracking during baking process of quick investment casting based on stereolithography ( sl ) pattern, an expanding model of sl pattern - ceramic shell is proposed via analyzing the interaction between investment shell and sl pattern, then the cracking condition of investment shell is given
摘要為了解決快速熔模鑄造中型殼開裂問題，對樹脂模型與型殼材料在消失過程中的熱變形機理和型殼開裂條件進行了有限元分析，建立了原型型殼熱變形數學模型，並應用於新型燃氣渦輪導向器的快速鑄造。The hot runner series makes the plastics in the hot runner from the nozzle of a plastics injector to the inlet of cavity must be always kept at such a molten state by means of heating that you just pick out the product, there is no need for you to take the condensing stuffs from the injection system as the mould cavity is operated
說明:熱流道系列用加熱的方法使從注塑機噴嘴到型腔入口為止這一段流道中的塑料一直保持熔融狀態，在開模時只需取出產品，而不必取澆注系統凝料。Three - dimensional numerical simulation of chimney checkers for glass furnace regenerator
玻璃熔窯筒型磚蓄熱室三維數值模擬Test method for properties of investment casting ceramic core - part 4 : determination of thermal deformation value
熔模鑄造陶瓷型芯性能試驗方法第4部分:熱變形量的測定In this model, the velocity was controlled below50 m / s so that it is easy that the temperature of outlet propellant exceeds 1000k. by the measure of advancing the melting point of metal panel to 3000k, the temperature of outlet propellant even could be close to the very high temperature of the metal panel. it is very active to improve the capability of the whole propulsion system
在本文模型中，將管道內工質的流速控制在50m / s ，熱交換器的出口工質溫度就能夠提升至1000k以上;提高換熱器高溫加熱段的金屬平板熔點到3000k以上，完全可以將工質出口溫度提升至接近金屬平板的溫度，這樣可以大幅度提高推進系統的性能。The results of finite element analysis including the latent heat show lower maximum temperature, smaller size of melting pool, and narrower heat affected zone compared with the analysis neglecting the latent heat
考慮潛熱的有限元模型分析結果和忽略潛熱的計算結果比較，前者顯示出較低的最高溫度、較小的熔池范圍和較窄的熱影響域。分享友人