淬火應變 的英文怎麼說
中文拼音 [cuìhuǒyīngbiàn]
淬火應變
英文
distortion during quenching-
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。Abstract : this paper introduced the induction hardening experiment of components ? the gear - park and the drive support sprocket. give some advise on the pearlitic malleable iron ' s induction heat - treatment, and show coil design intending to meet the harden profilc according to the drawing
文摘:本文介紹變速箱零件? ?駐車齒輪和鏈輪支架的感應淬火試驗工作,提出對可鍛鑄鐵感應淬火中值得注意的問題及針對這兩種零件的特殊硬化層要求而設計的感應器。The inner stress produced by quick cooling during quenching is the basic reason of formation of quench - distortion of parts
摘要淬火過程中的快速冷卻在工件內部產生的內應力是導致淬火變形的根本原因。The paper expounds the main reasons of formation of quench distortion and gives some relevant precautions and straightening solutions
本文較詳細探討影響工件淬火變形的主要因素,提出了相應的預防和矯直措施。The changing carbon potential carburization - hot oil matrempering technology of helical bevel gear for automobile driven axle is introduced in this article. the board test and production application show that the technology not only quenchs directly gear after carbrization, but also decreases the heat treatment deformation and raises the contact fatigue life of gear
介紹了汽車驅動橋螺旋錐齒輪的變碳勢滲碳一熱油分級淬火工藝,臺架試驗及生產應用表明,該工藝與專用滲碳淬火掛具相結合,不僅可實現齒輪滲碳后直接淬火,而且熱處理變形小,齒輪接觸疲勞壽命也有所提高。Laser quenching is one of the important field of using laser technology in industry, which is closely connected with several subjects, i. e. laser physics theory, laser processing technology, metal physics et, al
激光淬火(相變硬化)是激光技術在工業中應用的一個重要領域,該技術與激光物理學、激光加工技術、金屬學熱處理等幾門學科緊密相關。Second, on the numerical arithmetic of the quench - induced residual stresses ground, the quenching process of 7075t73 aluminum plate is simulated, the effect of material characteristics along with the plate temperature varying in quenching is considered, and on conditions of the different water temperature and different plate thickness, the quenching processes are compared
2 、建立了航空鋁合金板材淬火過程的彈塑性力學模型,對航空鋁合金板材溫度場與應力場進行了數值模擬,模擬過程考慮了材料特性隨溫度變化的影響,並對不同的淬火影響因素進行了分析。Machining deformation of aircraft monolithic component is simulated by finite element method ( fem ) and validated by experiment. the initial residual stress in pre - stretched plate is generated by simulating quenching and stretching processes. with a single tool - tooth milling process fem, the machining loads in monolithic component material removing is obtained. restart - calculation is put forward to complete the whole simulation of machining process. to verify the fem result, an experiment is carried out. the deformation distribution of the monolithic component resulting from fem shows a good agreement with the experiment result, which indicates that the key technologies presented in the paper are practicable and can be used to simulate the milling process of monolithic component to predict its deformation. lengthy and expensive trial and error experiment process can be avoided
在模擬淬火、拉伸過程獲得含有初始殘余應力的預拉伸板材以及模擬單齒切削過程獲得切削載荷的基礎上,提出並採用接力演算法,對一航空整體結構件的材料銑削過程進行有限元模擬,同時進行了試驗研究.結果表明,有限元模擬的整體結構件的變形與試驗具有一致性,從而證明提出的整體結構件加工模擬關鍵技術的可行性,避免了為研究加工變形而進行的繁瑣的試錯法The lath width of martensite can be fined noticeably by pre - strained quenching at non - dynamic recrystallization to approach nanometer magnitude ( the average width is 120nm )
採用非動態再結晶溫度下的預應變-淬火,提高馬氏體相變形核率,可以超細化馬氏體的板條晶片寬度,使之接近納米量級水平(平均寬度達到120nm ) 。From an examination of the tensile behavior of cz ly12 alloys under different temperature and strain rate, two kinds of deformation and intergranular fracture behaviors were observed that were opposite to the characteristic strain rate range in fine - grained superplasticity. the mechanisms are described as follows. the high ductility achieved at high strain rate is generally attributed to the dominant role of gbs accommodating mechanisms, which is considered as dislocation creep within grains controlled by subgrains
研究選用自然時效淬火態的ly12鋁合金,進行了一系列不同溫度和應變速率下的單軸拉伸試驗, 480下,觀察到與傳統細晶超塑性特徵區間相反的行為:較高應變速率下,動態再結晶使晶粒細化,促進了晶界滑移,亞晶界控制的晶內位錯蠕變是晶界滑移的主要協調機制。The effect of plastic deformation and elastic strain energy induced by pre - strain on the nucleation of martensitic transformation of low alloy ultra - strength steel sosimncrmov had been studied by pre - strain quenching in austenite state. the control over deformation magnitude and deformation temperate as well as loading pattern was performed to adjust the storage of elastic strain energy in steel before martensitic transformation, using the type of geeble - 1500 thermal analogue test machine
使用gleeble - 1500型熱模擬機,對低合金超高強度鋼30simncrmov實施奧氏體預應變淬火處理,通過控制形變量、形變溫度和加載方式,調整鋼中馬氏體相變前的彈性應變能儲備,研究了預應變所造成的塑性變形與彈性應變能對馬氏體相變的影響。On the basis of heat transfer theory, this paper analyzes heat transfer process in film boiling stage when axial workpiece is quenched vertically and distribution of steam film thickness as well as corresponding variation of heat - transfer coefficient
摘要以傳熱學理論為基礎,對軸類工件豎直淬火時膜沸騰階段的傳熱情況進行分析,分析了工件表面蒸汽膜厚度的分佈情況和傳熱系數的相應變化。The research results on laser hardening of the fibre - cutting roller showed that using laser surface hardening process instead of thermal spraying to strengthen the surface of fibre - cutting roller of 4crl 3 stainless steel is practicable. not only this technique overcame the disadvantage of larger heat distortion by using thermal spraying but also possessed the advantages that the operation is simply and that expense is easy
過絲輥激光表面淬火的研究表明,選取恰當的工藝參數對過絲輥表面採用激光淬火替代傳統的熱噴塗是切實可行的,該方法不但能夠克服熱噴塗方法中工件變形大的不足,而且工藝簡便、成本低廉,實用性強,具有明顯的經濟效益和推廣應用價值。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。Application of the igbt variable frequency power supply in quenching process of engine crankshafts
變頻電源在汽車曲軸淬火上的應用分享友人