線性回火 的英文怎麼說
中文拼音 [xiànxìnghuíhuǒ]
線性回火
英文
linear tempering-
Based on the analyses on mechanical properties, microstructure and fracture of - the microalloyed steels socrv with various heat treatment technique, it can be affirmed that various fractures arttribute to various mechanism, we can draw conclusion that the strength and toughness of microalloyed steels 50crv will be increase simultaneously by optimal heat treatment technique. to illustrate the mechanism of the strength and toughness of microalloyed steels socrv, we designed the comparative experiment and observed the microstructure of the sample which occurred at different quench and tempering temperature and different tempering time. the last experiment results were determined by the four factors : fined microalloyed elements grains, the decompound of martensite, martensite transformation of remnant austenite and the second phase precipitation
為解釋微合金化50crv鋼強韌化機理，本文通過對不同淬火溫度，回火溫度，回火時間下的力學性能指標的對比及顯微分析，認為微合金元素的細化晶粒，馬氏體的回火分解，殘余奧氏體的轉變，第二相的沉澱析出共同決定了微合金鋼的強韌化情況，特別是由於微合金元素的存在，其細化晶粒及其碳氮化物的沉澱析出，導致鋼的良好的強韌性，並且如果工藝滿足第二相的沉澱析出強化大於回火馬氏體分解引起的軟化效應，會在硬度曲線中產生明顯的二次硬化現象。Disigning coolant channel on the firebox of liquid rocket engine to loxodrome ( equal - angle helix ) groove can improve firebox coolant capability greatly. because the width dimension of loxodrome groove is narrow and the depth is deep, some machining methods are incapable, such as end - milling or electrochemistry. according to the peculiarities, a cnc disk - cutter - milling method which is composed of five motion axes with four simultaneously interpolated ones is researched. because most firebox generatrix is composed of complex curves, it is very difficult to get cnc cutting program with manual means. in order to deal with the problem, the loxodrome mathematics model is studied, and an auto - programming software system is developed. the software system can generate cnc cutting program of loxodrome on many kinds of turned surface. the constriction - distension segment of firebox is the most representative workpiece. the sharp changing of its generatrix slope makes loxodrome milling difficult. with the theory analyzing and practice cutting experiment, some applied techniques, which include milling mode and direction, choosing cutter diameter and cutting start point setting, are developed. adopting the technology above, tens regular workpiece have been manufacturing. the two - year manufacture practice has confirmed the validity and feasibility of developed loxodrome coolant channel milling method. the developed technology is also worth to be referenced to other similar workpiece
將液體火箭發動機燃燒室的冷卻通道設計為斜航線（等傾角螺旋線）槽形，可以大幅度改善燃燒室的冷卻性能.斜航線冷卻槽的槽寬尺寸較小而槽深尺寸較大，所以無法使用棒銑刀銑削、電化學等加工方式.針對這些特點，提出了五軸控制、四軸聯動的數控片銑刀銑削加工方法.由於燃燒室外表面的母線輪廓復雜，手工編制數控加工程序難度大.為了解決數控加工程序的編制問題，研究了斜航線的數學模型，開發了自動編程軟體系統.使用該系統，可以生成多種母線輪廓回轉體外表面上的斜航線數控加工程序.燃燒室收斂-擴張段的母線斜率變化大，加工難度大，是斜航線冷卻通道加工的最典型工件.經過理論分析和實際切削實驗，研究了針對該類型工件的片銑刀直徑選擇、銑削方式和方向、刀具調整和起刀點的設置等多項實際的加工方案.採用上述的一系列技術，已經成功地加工了數十個合格工件.經過兩年多的實際生產過程應用，驗證了所開發的斜航線冷卻通道加工方法的正確性和可行性.這些加工技術的研製成功，對其他相似類型零件的加工亦具有參考意義We select ni / cr alloy resistor as element together with ceramic embedding hearth ; select small flat - and - disc heat - even hubby ceramic sample holder, select ni / cr & ni / si thermoelectric couple ( type k ) as thermoscope with threads 0. 5 mm in diameter which is installed in the middle of the holders symmetrically ; select aluminum silicate fire - retardant fiber as materials for heat preservation ; design some hardware, for example temperature controller & transporter, signal amplifier etc ; design controlling curve to heat stove ; and introduce the method of least squares nonlinear regression and subsection function to deal with data. in order to obtain the reasonable operation conditions and operation curve, we have also done many theory analysis and experiment discussions
通過理論和試驗探討，選用鎳鉻合金電阻絲作為加熱元件，配以陶瓷質埋入式爐膛；選用陶瓷質小尺寸扁平?圓盤均熱塊體型樣品支持器；選用0 . 5mm絲徑鎳鉻?鎳硅熱電偶（ k ）作為測溫元件；熱電偶對稱安置在樣品支持器容器的中部；選用硅酸鋁耐火纖維作保溫材料；合理選用和設計了溫度控制器、溫度變送器、信號放大電路等硬體；採用升溫曲線來控制爐膛供熱過程；採用最小二乘法非線性回歸與分段函數相結合的曲線模擬方法，進行圖形處理。A linear regression was conducted and the functional relationship was found, which can afford reference for the security of meager - lean coal ' s industry application
對實驗數據進行線性回歸分析，得出影響因素與最低著火溫度的函數關系，從而為貧瘦煤工業應用的安全性提供了一定的參考依據。The seismic behavior of longitudinal middling - high r. c shear wall with frame column is discussed through model experimentations and finite element methods in this paper, after taking frame - shear wall structure of a main factory building of the large capacity power plant as experimentative prototype. the major work as follow : in order to appliance pseudo static test, the longitudinal middling - high r. c shear wall with frame column in the large capacity power plant ' s main factory building has been simulated to a model structure with 1 / 15 reduced - scale. the contents of study are process of cracking, course of damage, skeleton curve, rigidity degradation, ductility characteristic etc. that the seismic behavior of this kind of middling - high r. c shear wall is excellent has been proved by chubby hysteretic curve and fine capacity of energy dissipation
本文以某大型火電廠主廠房縱向框架一剪力墻結構為原型，通過模型試驗和有限元分析，研究了縱向帶邊框柱中高剪力墻結構的抗震性能問題，主要內容有：選用1 15縮尺比把某大型火電廠主廠房縱向帶邊框柱剪力墻原型結構模擬為一個模型結構，並進行了偽靜力試驗，研究了這類縱向帶邊框柱中高剪力墻結構的開裂與破壞過程、骨架曲線、剛度退化、延性性能等問題，試驗滯回曲線飽滿，消能能力強，說明此類中高剪力墻的抗震性能較好。The parameters in the study included the fire duration time, the axial load level, the section type and the strengthen method. the ultimate lateral strength, flexural stiffness, dissipated energy and ductility of the columns were compared and analyzed. ( 2 ) based on the stress - strain relations for steel and concrete after high temperature and the temperature field in the structural member, fiber - based model was developed to calculate the hysteretic moment ( m ) versus curvature ( ) relations and the lateral load ( p ) versus lateral displacement ( ? )
（ 2 ）在確定高溫后鋼材和混凝土在往復荷載作用下的應力-應變關系以及構件截面溫度場的基礎上，考慮力-溫度-時間作用路徑，建立了火災后鋼管混凝土壓彎構件滯回性能的理論分析模型，對火災后鋼管混凝土構件的彎矩-曲率（ m - ） 、荷載-變形（ p - ）滯回關系曲線進行了分析，計算結果與實驗結果總體上吻合較好。Founded in september 1997, the company occupies an area of 35000 square meters and has 50 staffs, including 3 engineers, 2 vice senior engineers and 4 engineers. with the help of some domestic specialists who engaged in the research on induction heated quenching - tempering treatment in weapon and space industries. we developed the first induction heat oil tempered elastic wire production line in china by ourselves. this production line was put use in august 1998, and was enlisted in the spak programme in 2000 serial number : 369, programme code : 00b101d691004
創建於1997年9月，佔地35000平方米，員工50名，其中研究員級高工3名，高工2名，工程師4名。依靠國內一批在軍工企業長期從事感應加熱調質處理研究的專家，自行研製成功國內第一條彈性線材感應加熱油淬火-回火生產線，並於1998年投產。3 we use vsm, for annealing and do not annealing sample have gone on magnetic properties measure, combination origin software shows for the loop analysis of magnetic hysteresis : do not coercivity of annealing pellet membrane between38. 898oe and 96. 487oe, the coercivity of annealing sample between 30. 327oeand91. 591oe
3 、用vsm對退火和未退火樣品進行了磁性能測量，結合origin軟體對磁滯回線分析表明:未退火顆粒膜的矯頑力在38 . 898oe ~ % . 4870e之間，退火樣品的矯頑力在30 . 327oe ~引Induction heat oil tempered wire and rod can be directly used in the manufacture of spring and pusher and the quenching - tempering process thereafter can be omitted, thus the quality problems such as deformation of workpiece, decarburization, un - stability and un - qualification of mechanical property can be avoided and the quality stability and reliability of product can be improved
感應加熱油淬火-回火鋼絲及線材，能直接用於繞簧和製造推桿，可省去一般材料繞簧和推桿加工成形后的淬火-回火工序，避免了由此帶來的工件變形脫碳及力學性能不穩定甚至不合要求等質量問題，提高了產品的質量穩定性和可靠性。This testing system has many merits, such as to test one ignition coil in 30 seconds, to store the testing results and do spc statistic on it, to record the waveform of failure parameter and call it anytime which helps to improve the processing technique, to work well in the industrial environment with high compatibility of electromagnetic interference
系統具有以下特點:單個點火線圈的測試在30s時間內完成;能夠對測量結果進行存儲、列印和spc統計分析;實現故障參數波形記錄及回放功能，可用於離線分析及加工工藝的完善;系統具有良好的電磁兼容特性，能夠穩定工作于惡劣的工業環境。Based on the heating treatment control system of a spring steel - wire production line in a factory, hubei province, the paper deals with the design of fully automatically monitoring system across its manufacturing process. through research of parameters of temperature control during the period of heating, annealing and tempering in steel wire manufacturing process, the corresponding composite intelligence fuzzy controller is designed. in light with the way of fast heating, a composite intelligent fuzzy controller combined with on - off control & pi control is set up
本文以湖北某鋼絲繩廠彈簧鋼絲熱處理生產線控制系統為依託，論述了整個生產過程的監控系統的設計，通過對該類鋼絲生產中的快速加熱過程、退火、回火等過程中的溫度控制參數的研究，設計了相應的智能型復合模糊控制器，根據快速加熱過程的實現方式，對于快速反應的被控對象，給出了以模糊控制為基礎的結合開關控制、 pi控制的快速升溫，且不超調的一種智能型復合模糊控制器，對于退火、回火等工藝過程，採用電加熱方式，該類工藝過程作為控制對象屬于具有純滯后的大慣性系統，作者設計出模型預測自適應模糊控制器，並對所設計的控制器進行計算機模擬實驗，取得了滿意的效果。分享友人