深滲碳 的英文怎麼說
中文拼音 [shēnshèntàn]
深滲碳
英文
deep cementing-
The metal carburized layer depth is one of the major technical parameter to evaluate the quality of carburized components
滲碳層深度是衡量滲碳件質量的主要技術指標之一。However, many factors may affect eddy current testing and it is hard to classify them, and how to extract information which indicating carburized layer depth in signals is very important
但影響渦流檢測的因素很多，檢測結果不盡如人意，如何提取信號中的反映滲碳層深度的信息非常重要。Abstract : the effect of different carburizing programs on the microstructure and thick of carburized layer of screw bevel gears has been studied, meanwhile the fatigue life of these gears has also tested
文摘:本文研究了不同滲碳淬火工藝對螺傘齒輪組織及滲層深度等影響，並對螺傘齒輪進行了臺架疲勞測試。With the software of simulating low - pressure vacuum carburizing process and computer control system, carburizing process parameters are controlled accurately. the minimum error of carburizing layer depth, the optimal distribution of carbon concentration in carburizing layer and the minimum distortion are insured
均勻布置鼠籠狀加熱元件和多組滲碳氣氛噴嘴，並對滲碳參數進行精確控制，可保證零件最小的滲層深度誤差最佳的滲層碳濃度分佈。It is shown from results that increasing carburizing time further in the normal technology can not obviously deep the carburizing layer, but can cause nonmartensite microstructure at the bottom of the gear and coarse grain across the gear, these will heavily decrease the fatigue life of the gear
結果表明：在正常滲碳淬火工藝基礎上再延長滲碳淬火1小時，齒輪滲碳層深度變化不大，但其齒根局部表面處有非馬組織，且晶粒尺寸易產生異常長大現象，從而致使臺架疲勞壽命明顯下降。This paper is introduced bp neutral network character, algorithm, designing principal on its construction and the designed product. input features extracted by the way described above into a bp neutral network, and using it to classify seven type of different carburized layer depth specimen. the result is indicated, using wavelet packet method to extract features and bp neutral network to classifying, is effective and precise to classify different metal carburized layer depth. it is useful and economical
本文介紹了bp神經網路的特點、演算法和其結構的具體設計方法和設計結果，並將小波包提取的特徵值輸入到bp網路，對7種不同滲碳層深度的試件進行分類，實驗結果表明，小波特徵值提取和bp神經網路分類器相結合，可以實現對不同滲碳層深度的分類，效果良好，精度較高，有一定的實用價值。Could there exist another possibility for the south boundary of the system as follow : the rainfall infiltrates in the outcrop carbonate - mountain area of western, and moves towards south and deeper along carbonate rocks, then moves upper through the overlain tertiary system ( n ) with a thickness of 400m ( instead of running off to the springs and yellow river through a long approach of least hydraulic gradient ), and then mainly transforms into the horizontal drainage in the loess layer of quaternary, finally drains in lu - botan depres sion
並且提出，關于對系統南界的認識，是否存在另一可能：即在西部碳酸鹽巖裸露區大氣降水入滲后，沿碳酸鹽巖向南向深部運動，然後，並非在極小的水力坡度驅動下長距離地向東部黃河、泉群徑流排泄，而是通過上覆厚度約400m的第三系向上運動，繼而主要在第四系黃土層中轉為向南水平排泄到鹵泊灘。We research the causes of concrete cracking, develop the high performance anti - cracking additive, optimize the concrete mix and construction techniques, increase the stability of concrete volume by shrinkage compensation, enhance splitting tensile strength, and can meet demand of high workability of fresh concrete. in the study, a thorough investigation of this problem is made from all points of view, with the aid of various modern measurement & testing technology and different theories & methods in surface physical chemistry, structural chemistry, solid - state chemistry, composite materials, fracture mechanics, etc. our research results have shown that the various shrinkage of concrete cause concrete cracking in building engineering, such as autogenous shrinkage, dry shrinkage, temperature shrinkage, plastic shrinkage, carbonized shrinkage, etc
目前，解決混凝土開裂的方法是綜合的，我們調查研究了混凝土開裂的原因，開發研製了高性能抗裂外加劑，優化混凝土的設計和施工方法，並通過補償收縮達到混凝土體積穩定，提高抗裂強度，滿足混凝土拌和物高工作性能的要求。本研究採用多種測試技術，應用表面物理化學、結構化學、固體化學、復合材料學、斷裂力學等多學科的理論與方法，從不同的角度進行深入的研究和探討。通過調查研究建築工程中出現的混凝土開裂、滲漏問題，發現混凝土在非荷載作用下開裂主要是由混凝土的自收縮、乾燥收縮、溫度收縮、塑性收縮、碳化收縮等各種收縮變形引起的。Abstract : a new simulating method is established for the calcul ation of the hardness profile of high - carbon - concentration deep - carburization, on the basis of analyzing this process and taking into account the influence o f carbide solution and dissolution, carbon - concentration and temperature on the diffusion behavior, and the influence of the environment factor on carbon trans fer through the gas - solid interface
文摘:在對高濃度深層滲碳的特點進行分析的基礎上，考慮到碳化物的析出與溶解、溫度及碳濃度對擴散行為的影響，氣氛環境對相界面碳傳遞過程的影響，淬火烈度對滲碳層冷卻效果的影響，提出了一種新的模擬高濃度深層滲碳滲層硬度分佈的方法。Eddy current testing is a method suitable for testing changes occurred in the surface or subsurface of specimen. when using this method to test carburized components, the variable of eddy current signal is depend on the change of constituents " physical property in carburized layer. so it can be used to test carburized components nondestructively
渦流檢測是一種適用於試件表面和近表面變化的檢測方法，利用渦流方法檢測滲碳件時，渦流檢測信號的變化主要取決于滲碳層組織的物理特性的變化，所以渦流檢測方法可以對金屬表面滲碳層深度進行檢測而不構成任何破壞。Steels - determination and verification of the depth of carburized and hardened cases
鋼件滲碳淬火硬化層深度的測定和校核Powder metallurgy. sintered ferrous materials, carburized or carbonitried. determination of effective case depth by the vickers microhardness testing method
粉末冶金.滲碳或碳氮共滲燒結黑色金屬材料.用維氏顯微硬度測定法確定有效滲碳層的深度Finite element calculation for test of case - depth using eddy current in carburizing
渦流檢測滲碳層深度中磁感應強度的計算Finite element preprocessor, eddy current electromagnetic field calculation, the postprocessor and the visualization processor were integrated together in the software system, and good graphic user interface was also offered
該系統將有限元前處理、渦流電磁場計算、滲碳層深度逆問題求解及計算結果的可視化處理結合起來，提供了良好的用戶界面。Methods of measuring case depth hardened by carburizing treatment for steel
鋼的滲碳硬化層深度的測量方法Steel - determination and verification of the depth of carburized and hardened cases
鋼.滲碳層和硬化層深度的測定和檢驗Steels - determination and verification of the depth of carburized and hardened cases iso 2639 : 2002 ; german version en iso 2639 : 2002
鋼.滲碳層和硬化層深度測定和檢驗Sintered ferrous materials, carburized or carbonitrided - determination and verification of case - hardening depth by a micro - hardness test
燒結鐵類材料.滲碳或碳氮共滲.用微型硬度測試法測定和驗證外層淬火的深度Measurement on the carburizing or nitro - caburizing harden case depth of sintering iron - based material
滲碳或碳氮共滲硬化層深度的測定Abstract : the average diffusion coefficient of carbon in surface layer of steel 20 rare ea rth carburized at 880 and 900 for 8 h was calculated by substituting the mea sured layer depths into the diffusion equation
文摘:通過對20鋼常規氣體滲碳和稀土滲碳層深的測定，計算出稀土滲碳時碳在奧氏體中的平均擴散系數。分享友人