熱膨脹差 的英文怎麼說
中文拼音 [rèpéngzhàngchā]
熱膨脹差
英文
differential thermal expansion-
Cordierite is a kind of superior heat - resistant material melting point can achieve 1400, and its thermal expansion coefficient is close to zero
Cordierite是一種優越的耐熱材料（熔點達1400 ）其熱膨脹系數接近於零，因此，可忍受急劇之溫差。And due to the heat expansile coefficient of the stainless steel rather high, the connecting force between the stainless steel pipe and the pipe coupling in the room temperature is much less than that between the titanium alloy pipe and the pipe coupling. the results accord with the tensile experiments well. finally, the dependence of dimensions of the coupling on the strength of the connector system is analyzed
模型計算還表明，被接管材料和管接頭材料之間的熱膨脹系數的差異會造成管接頭系統的室溫強度低於高溫強度；由於不銹鋼的熱膨脹系數較大，使得室溫下1不銹鋼管與n立tinb形狀記憶合金管接頭間的抱緊力遠小於鈦合金管與nitinb形狀記憶合金管接頭間的抱緊力，成功地解釋了拉脫實驗中的結果。The relations between relative measurementerror resulting from temperature and heat distensibility coefficient of coil ’ s framework andwindingcoilwerecarriedout. theinfluenceofelectromagnetisminterferenceontheaccuracyof rogowski coil, as well as the effect of temperature on integraph, were studied. somemeasures based on the above investigating results were proposed to insure the precision ofrogowski coil sensor head, such as the selection of materials and facture methods, improvment of technics and design of additional compensation
利用建立的rogowski線圈的數學模型對溫度和外界干擾磁場的影響進行了分析，得出了溫度造成的相對誤差與線圈骨架和繞組線圈熱膨脹系數之間的關系;從兩個方向上分析了干擾磁場對線圈精度的影響;分析了溫度對積分器的影響等。The t - r characteristics may originate from the total function of volume expansion and temperature susceptibility of asphalt, the deference of volume expansion coefficient with heat between asphalt and graphite, and internal stress
而溫敏產生的原因則為瀝青的體積膨脹、石墨和瀝青的熱膨脹系數差異、內部應力和瀝青溫度敏感性共同作用的結果。As a super refractory, nature flaky graphite has many advantages such as high thermal conductivity, high thermal shock resistance, excellent high - temperature strength, excellent machinability, high sublimation temperature and low thermal expansion coefficient. unfortunately, the poor water wettability, low density and flaky structure of graphite surface limit its application with large quantity
天然鱗片石墨以其熱膨脹小，導熱性、抗熱震性和化學穩定性好等諸多優點而成為適應鋼鐵冶煉苛刻環境耐火材料的原料，但石墨在水中的潤濕性、分散性差以及在空氣中易氧化等缺點限制了它的進一步應用。In metal matrix composites, thermal residual stresses will arise due to get ( coefficient of thermal expansion ) mismatch between matrix and fiber during cooling
在擠壓鑄造的金屬基復合材料中，由於基體和纖維的熱膨脹系數相差很大，所以在制備過程中由高溫（工藝溫度）冷卻至室溫時復合材料中會有熱殘余應力產生。Several materials with large coefficient of expansion were selected to make packaging components, and it was found that the packaging materials have good temperature sensitivity and compatibility with optical fibers. experimental accuracy and repetition of fbg temperature sensitivity and compensation were discussed. have selected several materials which has bigger coefficient of expansion to do packaging components, have made many temperature experiments, there have not flaws, such as aging, crackle, absciss layer, packaging materials have good temperature sensitivity and compatibility with optical fiber ; have designed the simple and practical packaging components, have performed a serials of experiments about accuracy and repetition of fbg wave - length, have obtained the first step conclusion ; have analyzed the result and made comparison between the result of different experiment, have summarized the best packaging effect and several rules to reduce mistskes
本文所做的主要工作包括以下幾個內容：一、選取了常見的熱膨脹系數大的材料製作封裝元件，經過多次一80到80反復測試，封裝元件沒有出現老化開裂、封裝裂紋、空洞、離層等缺陷，封裝材料具有良好的溫敏穩定性及復用性，與光纖相容性較好；二、對光纖光柵進行簡單、實用的封裝處理，就封裝效果的優劣性、波長測量的準確度、重復性和封裝時產生的波長損失等方面進行了一系列的實驗，得出了初步的結論；三、對溫敏和溫度補償式封裝的實驗數據進行了詳細的分析和對比，從數字上對溫變過程中光纖光柵中心波長的改變及溫變曲線進行了定量的分析，在大量實驗數據分析結果的基礎上，總結出哪種材料封裝效果更好，以及如何有效的減小實驗誤差。Methods of test for dense shaped refractory products - determination of thermal expansion by a differential method
緻密成型耐火製品試驗方法.由差動法測定熱膨脹性Methods of test for dense shaped refractory products - part 19 : determination of thermal expansion by a differential method
緻密成型耐火製品檢驗方法.第19部分:由差動法測定熱膨脹性In this paper, based on the acquaintance of the reason and background of turbine ' s differential expansion, focus on the thermal - expansion performance of steam turbine
本文在熟悉了解汽輪機脹差產生原因和背景的前提下，著重研究了汽輪機轉子的熱膨脹特性。This has been found to be necessary to compensate for the difference in thermal expansion between the metal coating and the plastics substrate
人們發現，這對補償金屬鍍層和和塑料基體間的熱膨脹差很有必要。The work of cohesion increased with the enhancement of wettability, but the bending strength of the welding specimens did not. when wc or mo was added the mode was adhesive rapture ( ii ) because of the difference between the thermal expansion coefficient of wc, mo and ni. the bending strength was high when iv rapture was occurred
研究發現粘附功隨潤濕性的改善而提高，但是焊接試樣的抗彎強度並沒有呈現明顯的這種趨勢；由於wc和mo與金屬ni熱膨脹系數相差較大，焊接試樣斷裂方式為內聚型斷裂（型斷裂） ，抗彎強度較低；以型方式斷裂的體系具有較高的抗彎強度。Parallel seat gate and seat ring construction can be furnished for high differential pressure services or where high piping loads or thermal expansion may cause sticking of a wedge type gate
平行閥座閘閥和閥座環結構可以應用在高壓差應用環境中，或者高管道負載，或可能導致楔形閘板閘閥卡住的熱膨脹應用環境中。It was found that the interfacial bonding of 93w - ofc was both the joining action of ofc / w grains and that of ofc / ni - fe binders, whereas the joining of ofc to tc4 could be seen as the mutual intense diffusion effect between ofc / tc4 and as a result cu - ti intermetallic compounds were formed at the joint. the joining of tc4 - a1 and a1 - mb2 were also attributed to the result of diffusion between elements ti - al and al - mg respectively. on the other hand, residual thermal stress and stress - induced distortion were produced at the joint simultaneously due to the difference in thermal expansion coefficient of different welding " materials
研究表明， 93w與ofc的界面連接是ofc與93w中w晶粒的連接以及ofc與93w中ni - fe粘接劑的連接共同作用的結果； ofc與tc _ 4連接界面的形成是由於ofc與tc _ 4之間發生反應擴散，並由此在二者接頭處生成了cu - ti金屬間化合物的中間相； tc _ 4 - al的連接與al - mb _ 2的連接則分別是其基體元素ti 、 al之間和al 、 mg之間元素互擴散的結果，另外，由於熱膨脹系數的差異，擴散焊接后在不同焊件的接頭處存在殘余熱應力並由此引起接頭的形變。In this dissertation, mgo5 is introduced to form solid solution to restrain the decomposition of at in high temperature. then at is mixed with the al2o3, forming gradient composite to raise the integral intensity of the material and not affecting the thermal properties. the experimental results show that the additive mgo5 can effectively restrain the decomposition of at and promote the sinter process, which enhances the density of at
本文在充分分析本領域國內外研究現狀的基礎上，首先通過引入添加劑鈦酸鎂（ m2t ） ，使其與鈦酸鋁形成固溶體，以達到抑制鈦酸鋁中溫分解的目的；再通過與強度高、氣密性好的氧化鋁進行梯度復合來提高整體材料的強度並能彌補鈦酸鋁滲透性能差，同時對材料的低熱膨脹性能影響不大。According to an assessment report published by the inter - governmental panel on climate change ipcc in 2001, one of the consequences of global warming was the rise in sea level due to thermal expansion of the upper layer of the ocean and melting of polar ice caps and mountain glaciers, and it was estimated that the global mean sea level had risen by one to two millimetres per year in the 20th century. there are, however, considerable regional variation in the sea level change as global warming would affect atmospheric and oceanic circulations and hence the regional climate and sea level
根據政府間氣候變化專業委員會ipcc在二一年發表的評估報告，全球變暖導致海水受熱膨脹以及兩極冰冠和雪山冰川融化，造成全球海平面上升，在二十世紀全球海平面平均每年上升了約一至二毫米，但區域性的差異相當之大，這主要是因為全球變暖影響了大氣及海洋環流，引致區域性的天氣及海平面變化。The heteroepitaxial growth of 3c - sic on si substrate not only unfurls the maturity of si process, but also incarnates the excellence of 3c - sic, so that it become for long researchful direction. due to the large lattice parameter mismatch ( ~ 20 % ) and the large thermal expansion coefficient mismatch ( ~ 8 % ), however, the 3c - sic / si study is very difficult
然而，由於3c - sic與si之間存在較大的晶格失配度（約20 % ）和熱膨脹系數差異（約8 % ） ，因此， 3c - sic / si異質外延薄膜的制備非常困難，仍存在許多技術問題需要克服。According to an assessment report published by the inter - governmental panel on climate change ( ipcc ) in 2001, one of the consequences of global warming was the rise in sea level due to thermal expansion of the upper layer of the ocean and melting of polar ice caps and mountain glaciers, and it was estimated that the global mean sea level had risen by one to two millimetres per year in the 20th century. there are, however, considerable regional variation in the sea level change as global warming would affect atmospheric and oceanic circulations and hence the regional climate and sea level
根據政府間氣候變化專業委員會（ ipcc ）在二一年發表的評估報告，全球變暖導致海水受熱膨脹以及兩極冰冠和雪山冰川融化，造成全球海平面上升，在二十世紀全球海平面平均每年上升了約一至二毫米，但區域性的差異相當之大，這主要是因為全球變暖影響了大氣及海洋環流，引致區域性的天氣及海平面變化。However the study of metal - oxide hetero - interface is relatively less because the properties of metals and oxides usually differ extremely from each other. contrary to metals, the oxides are usually very brittle, elastically stiffer, insulating and exhibit less thermal expansion and their crystal lattice constants are different from metals. moreover, the preparation of specimen of metal - oxide interface is very difficult, the observation of searching a suitable interface under the electron microscope is also a tedious work
然而，對金屬-氧化物界面結構的研究卻相對少一些，這主要是由於金屬與氧化物之間的性質相差非常大，與金屬相反，氧化物通常很脆、絕熱、熱膨脹系數小，晶格常數也不同於金屬，有的甚至相差很大，而且，制備金屬-氧化物界面比較困難，在電子顯微鏡下全面地觀察一個合適的界面也是一項令人乏味的工作。In this paper i have done several worksuch as : coefficient of thermal expansion of frp sheet is larger different thanthat of the concrete. the interface of frp sheet reinforced concrete will producetemperature stress under the circumstance of temperature difference. i n order todesign the reinforced structure and evaluate safely, it is very significant toanalyse the interface temperature stress and to find the changing law of interfacetemperature stress
本文重點分析了frp片材補強混凝土梁界面溫度應力分佈理論，解決補強方面的一些工程問題，主要完成了以下幾個方面的研究工作:首先， frp片材的熱膨脹系數與混凝土的熱膨脹系數相差較大，在環境溫差作用下， frp片材補強混凝土界面將產生界面溫度應力，正確分析界面溫度應力和界面應力變化規律，對補強結構設計和安全評價具有重要的意義。分享友人