熱時效 的英文怎麼說
中文拼音 [rèshíxiào]
熱時效
英文
heat ageing-
In this paper, 6013al / sicp / gr metal matrix composite ( mmc ) was produced by spray codeposition, by means of changing the medium of quenching, influence of five types of heat treatment system ( furnace cooling, air cooling, water quenching, dry ice quenching, liquid nitrogen quenching ) and different aging temperature on the damping was studied systematically
本文採用噴射共沉積方法制備了6013al sicp gr金屬基復合材料（ mmc ） ，通過改變淬火介質，較為系統地研究了五種熱處理制度（爐冷、空冷、水冷、乾冰冷及液氮冷）以及不同時效溫度（ 120 、 150 、 170 、 190及210 ）對6013al sicp grmmc阻尼性能影響。The subject for different process technology and surface treatment of crank takes tracking checkout for its internal stress, analyses relation of jumping measurement, deformation measurement, recovery measurement and stress change, finds the reason and usual law of jumping overproof of crank. through cold pressure alignment, hot pressure alignment, support aged alignment and so on methods for 42crmo steel crank, the subject checks change of stress in the process of alignment and change of tissue and property after alignment for crank, and gives comprehensive evaluation for every alignment technology, then give safe and feasible technology parameter
本課題主要是對不同加工工藝及不同表面處理過程的曲軸，對其內應力進行跟蹤檢測，分析各工藝過程中跳動量、變形量、恢復量與應力改變的關系，找出曲軸跳動量超差的原因和一般規律。通過對42crmo鋼曲軸進行「常溫壓力校直」 、 「熱壓力校直」 、 「支撐時效校直」等方法的校直，檢測校直過程中曲軸應力的變化及校直后組織和性能的改變，進而對各校直工藝進行綜合評價，給出安全可行的工藝參數。The welding technology of francis turbine runners is optimized from the view of subsection welding and local heating by numerical simulation. the result shows that welding residual tensile stress appears in the weld and its area nearby, and peak stress appears in the dangerous area of blades after practising quondam welding technology ; welding residual tensile peak stress in the dangerous area of blades can be decreased by welding both ends earlier and then welding middle section later during subsection welding, and decreasing effect on welding residual stress of the subsection welding is related to the weld length of blade outlets and welding direction of each subsection ; decreasing effect on residual stress of the local heating is direct proportional to heating time, heating temperature, heating area, and inversely proportional to cooling area, and welding residual tensile peak stress in the dangerous area is decreasing trend earlier, and then increasing trend later with heated location increased
本文利用數值模擬手段對轉輪的焊接工藝從分段焊和局部加熱兩個方面進行了優化，結果表明:採用普通工藝焊接時，葉片焊后殘余拉應力出現在焊縫及其附近區域，並且在葉片出水邊的熔合線附近（危險區域）出現了峰值;在採用優化的分段焊時，先焊兩端后焊中間的方法可以降低葉片危險區域的焊接殘余拉應力峰值，降低效果與葉片出水邊焊段長度、焊縫各段的焊接方向有關;局部加熱法降低轉輪危險區域殘余應力的效果主要與加熱時間、加熱溫度以及加熱面積成正比，與冷卻面積成反比，並且危險區域的殘余應力隨加熱區域的增大呈先降低后升高的趨勢。The other effect brings about by coat on a large scale is discussed preliminary which including increasing the " hot island effect " of cities ; increasing the hydrous of the roads after rain and increasing the sinkage of ground surface in the city
同時初步探討用水泥以及瀝青大規模地覆蓋土壤所造成的其他影響，這些影響包括加重了城市的「熱島效應」 、加重了城市由於雨後道路積水所導致的交通堵塞、加重了城市地面的沉降。Our company endeavors to quenching & tempering, normalizing, tempering, high and medium temperature quenching, mesh belt furnace quenching, carbonizing, aging subzero and high temperature heat treatment, etc
本公司是一家致力於從事調質、正火、回火、高中溫淬火、網帶爐淬火、滲碳、時效冰冷及其高溫熱處理的廠家。The age hardening characteristic of as - cast cu20ni20mn and cu20ni35mn alloys and the interface characteristic between the alloy and cast tungsten carbide were studied, and on the basis of this study, composites of cu - ni - mn alloy reinforced with different volume fraction ( 0 - 45vol. % ) and different size ( 42 - 362 m ) of cast tungsten carbide particles were made by vacuum hot - pressing liquid sintering technology. pin on disk two body abrasion tests have been performed with different size of sic abrasive under different loads
本文研究了鑄態cu20ni20mn和cu20ni35mn合金的時效硬化特性及其與鑄造碳化鎢的界面特性，並在此基礎上以不同尺寸（ 42 362 m ）的鑄造碳化鎢顆粒為增強體，採用真空熱壓液相燒結技術制備了不同顆粒含量（ 0 45vol . ）的鑄造碳化鎢顆粒增強cu - ni - mn合金基復合材料；以不同粒度的sic為磨料，在不同載荷條件下利用銷?盤磨損試驗機測試了復合材料的二體磨料磨損性能。The results indicated that, the fabrication process of ultra - fine grain material is mainly determined by the stress, rotate speed and the flux of cooling water. the grain refining and the hardening effect are mostly affected by the rotate speed and the flux of cooling water. compared with commercial ly12, the invalidate strength and the prolongation rate of the ultra - fine grain material are properly improved in the measurement of compression property ; and the abrupt change of the dilatability of the ultra - fine grain material at 500c is found ; also the phenomena of which the grain size of these microstructures is stable when annealed under 300c is observed
研究表明，採用本文提出的摩擦壓扭強變形區轉移法可以得到棒狀的超細晶材料，軸向壓力、扭轉速度和溫度是採用該方法制備超細晶材料的主控參數；試件的旋轉轉速和冷卻速度對變形區晶粒細化和硬化效果影響顯著；超細晶ly12的壓縮性能與淬火+自然時效狀態的ly12壓縮性能相比，斷裂強度和延伸率均有一定程度的增強；超細晶ly12的熱膨脹系數在550左右發生明顯的變化。Principle : this product is make from self - heated point penetration medicament, heating time reach to 20 ~ 30 hours, the effect of outer applying eastern medicine is improved because the easy control of temperature, the temperature could be controlled between 40 and 58 ， fomentation of long time will make the efficient ingredients of eastern medicine penetrate into the certain point of skin, give a weight reducing effect
原理：本品採用了自熱透穴劑製作的中藥敷臍貼片，發熱時間達20 - 30小時，溫度易掌握，提高了中藥外敷的效果，溫度控制在40 - 58之間，長時間的中藥熱敷可使藥中有效的成份在通過熱能的作用下，滲透到皮膚指定的穴位上，達到減肥效果。The results showed that the excellent medicinal material of herba andrographis, optimized production technology, shorter heating time and lower temperature are the effective measures for increasing the quality of at
結果表明，優選穿心蓮藥材，優化制劑工藝，降低加熱時間和溫度，均是提高穿心蓮片質量的有效措施。Standard specification for hot - rolled and cold - finished age - hardening stainless steel bars and shapes
熱軋和冷精軋時效硬化不銹鋼棒和型材的標準規范The results show, when heating, the primary energy ratio of gehp is 1. 76 and exergy efficiency is 29. 12 %
結果表明：燃氣機熱泵在供熱時的一次能源利用率為1 . 76 ， （火用）效率為29 . 12 。( 3 ) solid solution with good solid solution ability were acquired by solid soluting treatment for 25 min at 540 c, 560 c and 580 c, respectively, after that water quenching was carried on. in the case of 580 c, the coarseness of the precipitation at grain boundaries did not happen, equi - part 120 did not emerge at the intersection of three grains, these suggest that over sintering did not happen
6013合金實驗熱軋板材經固溶處理後於180時效4小時達到峰值硬度； （ 3 ） 540 、 560 、和580固溶處理25min 、水淬，得到了固溶充分的固溶體， 580的情況下晶界析出相未粗化、三晶粒交界處的角度未出現等分的120 ，表明未發生過燒。In this thesis, the fabrication, characteristics and applications of the novel long - period fiber gratings ( lpfgs ) induced by focused high - frequency co2 laser pulses are studied. the main work is summerized as follows : 1
該方法利用高頻脈沖的熱沖擊效應，由於脈沖能量集中，單個脈沖加熱時間短，因此加熱效率高，能高效率高質量地寫入低成本的長周期光纖光柵。Characteristics : as a result of cold processing aging heat treatment, this product has a tensile strength of over 1100mpa
特性：通過冷間加工時效熱處理，拉伸長度達到1100mpa以上Contents of re have an effect on the tensile mechanical properties at high temperature to some degree. proper amount of re can improve b & 0. 2 apparently and 5 a little, because re can form compounds of good thermal stability with magnesium, which can be effectively strengthened by heat treatment
試樣中稀土的含量影響試樣的力學性能指標_ b （抗拉強度） 、 _ （ 0 . 2 ）和延伸率：適量的稀土可顯著提高_ b 、 _ （ 0 . 2 ） ，並一定程度上提高其延伸率，這是因為稀土與鎂可形成本身熱穩定性非常好的化合物，並且可時效強化。The crystal structure of the martensite as quenching state, the variation of the structure of the martensite during non - isothermal aging in the martensite and parent state, under successive deformation condition and under thermal cycling condition in the cu - based shape memory alloys are studied by the x - ray diffraction
摘要運用x -射線衍射分析技術研究了不同成分銅基形狀記憶合金淬火態馬氏體結構、馬氏體狀態非等溫時效過程中結構的變化規律、母相狀態時效和連續變形過程中馬氏體及母相結構的變化規律以及熱循環過程中馬氏體結構的變化情況。However, unsatisfactory results were obtained under the following conditions : discharge tube covered with glass cover, thermal dispersion conditions not as effective, thermal expansion of the discharge tube restricted by the co - axis glass cover ( longer preheat time, lower anti - interference )
在放電管外有玻璃罩，散熱條件差；放電管溫度變形受外玻璃罩約束的同軸式管子上則效果不理想（預熱時間較長，抗干擾能力不如前者） 。At the same time, water quenching at 190 aging exhibit the highest damping capacities. compared with furnace cooling which show the highest damping capacities in five heat treatments, it show higher damping capacities when tempera ture is under 120 and above 290. further more, it show constantly damping value ( tan above 0. 004 ), but the damping value of furnace cooling is just 0. 0015 under 75
水淬試樣在190的時效溫度下有最高的阻尼性能，通過與爐冷試樣的阻尼性能（五種熱處理制度爐冷試樣的阻尼性能較高）對比發現，在溫度低於120 、高於290范圍，水淬試樣在190時效溫度下的阻尼性能均高於爐冷試樣的阻尼性能，在120 290之間，它的阻尼性能低於爐冷試樣的阻尼性能，而此溫度區間正好是位錯內耗峰出現的溫度范圍。Guide for statistical analysis of thermal life test data
熱時效試驗數據的統計分析指南Abstract : this paper points out that the properties of casting t reated by vibrating ageing is superior in comparing with that in the as ca st state and heat ageing state through analyzing the residual tress distri buting, mechanical properties and resistance to deformation
文摘:對鑄件的鑄態、熱時效態和振動時效態在內應力分佈，力學性能及抗變形能力方面的特性進行分析對比，發現振動時效態均優於前2者。分享友人