熱裂紋 的英文怎麼說

中文拼音 [rèlièwén]
熱裂紋 英文
fire check
  • 裂 : 裂動詞[方言] （東西的兩部分向兩旁分開） open
  • 紋 : 名詞（花紋; 紋縷兒） lines; veins; grain
  1. Formation mechanism of cracks in surface oxidating layer of mosi2 heating material

    2電熱材料表面氧化層裂紋的形成機制
  2. The following results were found, i. e., the water ratio affects obviously the acoustic wave velocity of rock sample ; the wave velocity is higher in saturated rock samples than in unsaturated ones ; and it decreases gradually with the strain of samples during uniaxial compression ; and also with the lengthening holding time at 160 ; when heating the samples the acoustic wave velocity increases slightly in initial stage and comes to the peak value at 60, then decreases gradually with increasing temperature ; meantime, there is a certain temperature effect on rock samples size

    實驗發現含水率對波速影響比較大，飽和巖樣的聲波傳播速度高於不飽和巖樣的聲波傳播速度；人工預制裂紋對聲波傳播速度影響不大；單軸壓縮條件下，聲波傳播速度隨應變增加逐漸降低；在同一溫度（ 160 ）下，波速隨保溫時間的增加而逐漸降低；在對巖樣逐漸加熱情況下，初始加熱階段波速略有升高，當溫度達到60時，巖樣波速達到峰值，之後隨著溫度繼續升高其波速逐漸下降；波速隨溫度變化具有一定的尺寸效應。
  3. Because the propellant grain is viscoelastic material, the liner and adiabatic layer are also viscoelastic one, the interface debond problem is actually interface crack about elastic - viscoelastic or bi - viscoelastic materials. research about this problem relates to the knowledge of viscoelastic mechanics and interface fracture and combustion. numerical analysis method about interface debond on solid rocket motor is researched in this paper

    由於固體火箭發動機的推進劑藥柱是一種粘彈性材料，襯層和絕熱層也具有粘彈性性質，因此其界面脫粘問題實際上是彈性-粘彈性或雙粘彈性各向同性材料界面裂紋問題，對該問題的研究涉及到粘彈性力學、界面斷裂力學和燃燒學等相關學科。
  4. Abstract : in the paper, the hot crack for the forging die made by methodsof squeeze casting is analyzed, how to reduce the hot crack is also given out

    文摘:從生產實際出發，分析了鍛模液態模鍛成形過程中熱裂紋形成的主要原因，提出了降低鍛模熱裂紋的幾點措施。
  5. Microcracks and stresses will appear if the dropping speed, aluminum content and dropping cycles are too high. high temperature heat - treatment can eliminate and help to obtain compact thick film

    當提拉速度、溶膠濃度和鍍膜次數較大時膜內易出現微裂紋和脫落等缺陷， 550熱處理5h可以消除缺陷，獲得緻密厚膜。
  6. By using the eigenfunction expansion technique, a one - dimension finite element formulation is then developed to determine the eigensolutions to the 2d heat conduction problem at the crack tip, which discretizes the sectorial domain circumferenially

    利用特徵方程展開方法，可獲得分析裂紋尖端處二維熱傳導特徵解的一維有限元列式。
  7. This paper aims at the characteristics of thermal response of lpg vesse1 under high temperatue, conjoining the project of " study on transportation safety early - wdring system of lpg dangerous goods " supported by transportation departinen of china and the project of " mechanism study and numerical simulation of the explosion of lpg vessel " supported by science foundation of hubei province. the interdisciplinary research has been done among temperature field distribution of lpg vessel under flame surroundings, intensity calculation, crack propagation predication and mechanism of explosive accident, etc. three parts are analyzed and discussed

    本文針對高溫環境下液化氣壓力容器的熱響應特性問題，結合交通部重點科技項目「液化氣體類危險品運輸安全預警系統的研究」和湖北省自然科學基金項目「液化氣容器爆炸機理研究及數值模擬」 ，對在火焰包圍下的液化氣壓力容器的溫度場分佈、強度計算、裂紋擴展預測以及爆炸事故機理等方面開展了多學科的交叉研究。
  8. The compatibility and harmony among workability, mechanical grade and durability are optimized, with the ground of adjusting composition and dosage of fd - 1 ; after analyzing anti - freezing damage mechanism, it is concluded that temperature is main factor, which affects structure and property of concrete. after two processes of temperature - elevation of hydration heat and temperature - descent of cold - environment, there is original damage in concrete and its existence leads to temperature fields, as results in temperature damage on transition phase > aggregate and cement mortar of concrete

    通過對負溫混凝土早期防凍分析研究認為，環境溫度對混凝土的結構形成及其性能的影響十分突出，水泥水化溫升和環境散熱降溫兩個過程導致混凝土結構內部產生不均勻溫度場，對過渡相、水泥砂漿以及骨料都能產生不同程度的溫度損傷，產生內部溫差應力裂紋，初始損傷也是不可避免的。
  9. The prevention of quenching crackles in heat - treating technology

    熱處理工藝中淬火裂紋的預防
  10. Simulation and analysis of the method of reducing thermal crack at the edge of piston with toroidal combustion chamber

    收口型燃燒室邊緣熱裂紋緩解措施的研究
  11. 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。
  12. Based on the mechanism of hot cracking formation of castings, the cracking defects of furnace door frame castings was analyzed, and found that the main reasons causing cracking are as follows : construction of the casting was not reasonable, gating system was not proper, and pouring temperature was too high

    摘要根據鑄件產生熱裂紋的機理，對爐門框裂紋缺陷進行分析，找到了裂紋產生的主要原因是鑄件結構和澆注系統不合理，以及澆注溫度過高。
  13. With the very low water to cement ratio, rpc has ultra - high strength high ductility and low permeability. in this paper, the compressive strength of rpc can reach to a high point with the number approximately 135mpa. as illustrated from the study results, we can approve some fundamental conclusions : there are big effects on rpc with deferent kinds and properties of raw materials and deferent curing conditions ; stress - strain curve shows the process of destroy with rpc samples ; x - ray diffraction analysis indicates that heat treatment at temperatures 90 accelerate the hydration of rpc sharply, therefore, mechanical and microstructural properties of rpc are highly dependent on heat treatment ; it is believed that rpc materials have excellent resistance to chloride permeability ; during the heat treatment, the shrinkage of rpc developed quickly because of chemical reactions ; the rpc with slag mostly has the advantage of rpc without slag about resistance to solutions corrosion

    研究結果表明：通過對rpc各組分摻量變化的研究，可以找到rpc的最優配合比；試件成型后的熱養護制度對rpc的性能影響巨大； rpc的抗壓應力?應變曲線可以反映出試件受破壞時微裂紋的擴展情況，剛纖維的摻入可以大幅改善rpc的韌性； rpc在成型后存在較大的收縮，而其中的化學收縮要遠遠大於乾燥收縮； rpc具有很強的抗氯離子滲透性能，漿體的密實度很高；通過x射線衍射實驗，可以發現rpc的膠凝體中ch晶體已經幾乎不存在，膠凝體主要由c - s - h凝膠和未水化水泥顆粒組成；在抗溶液侵蝕的實驗中，摻礦渣rpc的抗溶液侵蝕性能在絕大多數情況下要好於不摻礦渣試件，酸、堿溶液和浙江工業大學碩士學位論文摘要一些鹽溶液都會對rpc的結構產生侵蝕作用，但是機理各有不同。
  14. Acted a pulse current to prevent the thermal fatigue crack subcritical extending

    脈沖放電截止熱疲勞裂紋的亞臨界擴展
  15. Results show that the brittle fracture is mainly caused by hydrogen brittleness that results from the oxidation arid absorbing hydrogen of copper tube during braze welding

    同時在加熱和冷卻時，由於異種材料的熱脹系數差別過大，產生的較大熱應力作用於已存在的裂紋，促使裂紋二次擴展，甚至使得晶粒脫落產生空洞，最終導致焊接接頭漏氣失效。
  16. The reheating embrittlement of a crack - free steel during post - welding heat treatment

    無裂紋鋼的焊后熱處理與再熱脆性
  17. On the basis of the experiment, the reason that high strength 7a52 aluminum alloy produced the familiar defects such as hot cracking, porosity, slag patch, etc. in the welding was analyzed, and the preventive measures of every defect were adopted

    摘要在實驗的基礎上分析了高強7a52鋁合金焊接時出現的常見焊接缺陷：熱裂紋、氣孔、夾渣等產生的原因，並對每種缺陷提出了預防措施。
  18. Destructive tests on welds in metallic materials - hot cracking tests for weldments - arc welding processes - part 3 : externally loaded test iso tr 17641 - 3 : 2004 ; german translation of cen iso tr 17641 - 3 : 2004

    金屬材料焊接的有損檢驗.焊件的熱裂紋試驗.弧焊過程
  19. It has been pointed out that for the application of cryogenic nitrogen gas jet in high speed milling of titanium alloy, unless the chipping and fracture caused by thermal cracks take place, the reduced temperature of cryogenic nitrogen gas will prolong the tool life

    指出在低溫氮氣射流條件下高速銑削鈦合金時，只要熱裂紋的形成與擴展未引起刀具的崩刃及刀面的剝落，進一步降低低溫氮氣的溫度將提高刀具的使用壽命。
  20. In the model, many processes or phenomena such as crack friction and growth, heat conduction, phase transformation of oxidant particulates, heat generation by viscous liquid layer, chemical reactions of gases in cracks, heat and mass exchange between phases of gas and solid, are described

    模型描述了裂紋滑移擴展、熱傳導、含能顆粒相變、液化層粘性加熱、裂紋內氣相反應、氣相固相質量能量交換及與裂紋擴展耦合等過程。
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