過共析鋼 的英文怎麼說
中文拼音 [guògòngxīgāng]
過共析鋼
英文
hypereutectoid steel-
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。The flow diagram of a lpg bottle paint - drying heating system using heat carrier as heat - medium, which has similar properties as other heat - carrier heating systems, has been improved, which has good effect in avoiding oil - spraying, shortening dehydration time and power - fail protecting etc. after making a series of analysis, calculational methods of expansion tank dimension have been deduced, which takes the moisture boiling - off of heat carrier into account and accords with real conditions
對與其它熱載體加熱系統具有共性的鋼瓶熱載體加熱系統的流程圖進行了改進和完善，在防止噴油、縮短脫水時間和停電保護等方面取得了良好效果。通過分析，整理出了熱載體加熱系統膨脹器容積的計算方法，該方法考慮了熱載體所含水分汽化而帶來的影響，比原有的計算方法更加符合實際。For example, frp reinforced concrete is used to support or surround magnetic resonance imaging ( mri ) medical equipment, and frp is also used for the constructions of some seawalls, industrial roof decks, base pads for electrical and reactor equipment, anchor in rock and ground engineering and concrete floor slabs in aggressive chemical environments in order to promote the wide usage of frp and frp reinforced concrete structures, financed cooperatively by nationa l natural science foundation ( item : the research on mechanical performance of frp reinforced concrete beam reinforced ; number : 59978046 ) and henan illustrious youth science foundation, connected with the analysis methods of modern steel reinforced concrete structure, the thesis further studies the flexural performance of frp reinforced concrete beam through the systematic study on experimental data got from this kind of beams, systematically establishes the theoretical calculating system of the flexural performance of frp reinforced concrete beam in cooperation with the up - to - date analytical methods for reinforced concrete, which suits the properties of frp
例如，纖維增強塑料筋應用於支撐和圍繞磁共振成像醫療設備的混凝土中及海堤、工業頂棚、電設備、反應設備的基座、巖土工程中的錨桿、侵蝕性環境的混凝土結構等海洋工程、橋梁工程、路面工程、巖土工程、醫療及化工工程的建設。為了推動纖維增強塑料筋及其混凝土結構在工程中的廣泛應用，本文在國家自然科學基金（項目名稱：纖維增強塑料筋混凝土梁力學性能的研究；編號： 59978046 ）和河南省傑出青年基金的資助下，通過對纖維增強塑料筋混凝土梁正截面受彎性能試驗數據的系統分析，結合現代鋼筋混凝土結構學的分析方法，對纖維增強塑料筋混凝土梁正截面受彎性能進行了深入的研究，較系統的建立了適合於纖維增強塑料筋特點的纖維增強塑料筋混凝土梁正截面受彎性能的理論計算體系。Based on qualitative analysis and comparison of several options for suppressing transverse vibration on deck type steel plate girder of railway bridge, conclusions are made as follows : with static reinforcing, the vibration amplitude can be suppressed to some extent, but quasi - resonance of the bridge can not be avoided, moreover, the construction is inconvenient and costly. with option of two bridge connection, the effectiveness of vibration suppression is clear ( the damping ratio approaches 50 % ) and it is fairly economic and easy, however, the quasi - resonance of the bridge can not be avoided either. with dynamic option ( mtmd option ), the quasi - resonance of the bridge can be effectively avoided ( the damping ratio is up to 51. 38 % as tested in field ), moreover, the construction cost is low, and the construction is simply and convenient
通過對目前抑制鐵路上承式鋼板梁橋橫向振動的幾種方案進行定性的分析和比較，認為：靜力加固方案可以使橋梁振幅有所減小，但不能避免準共振現象的發生，而且工程造價較高，施工也不方便；兩橋連接方案減振效果明顯（減振率近50 % ） ，比較經濟也比較方便，但同樣不能避免準共振現象的發生；動力減振方案（ mtmd抑振方案）可以有效的抑制橋梁的準共振現象（現場試驗中減振率達51 . 83 % ） ，而且工程造價較低，施工簡單、方便。In this thesis, the sls molding properties of some metal - base composite powders composed of metal powder mixed by several regularly used polymers " powder were studied, on the basis of which, a new sls composite material made by 316 stainless steel powder mixed by epoxy powder was developed and produced. the molding technics and adherent mechanism of the material in sls process was analyzed and studied, and the high temperature sintering technics of the green parts of the material was discussed as well
本文主要針對快速成型的sls方法，研究比較了幾種常用的聚合物粉末添加到金屬粉末中所構成的金屬基復合粉末的成型性，並且研製開發了316不銹鋼粉末與環氧樹脂粉末共混復合粉末作為成型材料，對其sls過程的成型工藝、聚合物粘接機理以及型坯的高溫燒結工藝進行了研究論述，並進一步對型坯的高溫燒結過程、燒結中的收縮變形和燒結后的強度作了分析研究。There are three parts in the thesis : at first, introduce the environments faced by pgg csst, the main opportunity and threat, and analyze pgg csst ' s internal strength and weakness ; and then, analyze market and fix on target market ; in the end, decide the direction of product structural adjustment according to the market, design and analyze the investment plan 340mm accu - roll project
本文共分三大部分：首先對無縫鋼管行業競爭環境和成都無縫的競爭地位進行分析，找出環境的威脅與機會、企業的優勢與劣勢；然後通過細分無縫鋼管市場，確定目標市場；最後確定成都無縫的產品結構調整方向，提出相應的投資項目? ? 340連軋管機組，並對該項投資進行論證。An equation to calculate ultimate shear - resistant capacity of src column and steel beam joint is discussed, with consideration of the actions of concrete, steel web and horizontal hoop. the effects of axial press and steel wing under loads are also discussed
探討考慮混凝土、型鋼腹板、箍筋共同貢獻的勁性柱?鋼梁節點極限抗剪承載力計算公式，並就軸壓力、翼緣在節點受力過程中的作用進行了分析與評價。On the basis of the fundamental principle of push - over method, together with some basic assumptions, this paper edit computer program of the loading - displacement skeleton curves of the sgrc frame, considering p - delta effect. then this paper use this program to calculate and analysis the loading - displacement nonlinear relations of eleven sgrc frames, which are in two different loading modes. the results calculated by computer are in good agreement with experimental values, so this program is accurate, and the push - over method is practicable analytical method in actual anti - seismic design
本文依據靜力彈塑性分析方法的原理，編寫了關于鋼筋混凝土框架的荷載-位移非線性曲線關系的計算程序，其中考慮了框架的二階效應的影響，對兩種採用不同加載制度的共11榀煤矸石混凝土框架進行了荷載-位移全過程非線性計算分析，通過分析得到的計算結果，說明了本文程序的準確性，從而驗證了靜力彈塑性分析方法在實際抗震設計中的可行性。分享友人