模具過熱 的英文怎麼說
中文拼音 [mójùguòrè]
模具過熱
英文
excessive hot die-
The simulations of the blank forming process is always a very pop question in the domain of plasticity forming. it has very important significance as to making certain the figure of the blank roughcast calculating strain and stress, establishing reasonable forming craft and designing mold
板料成形過程模擬一直是塑性成形領域研究的熱點問題,對于確定板料毛坯形狀、計算應力、應變分佈、制訂合理的成形工藝和模具設計有重要的意義。While the benefits of overheating are specific to the module, the cost ? heat buildup ? is cumulative to the rack that the module resides in, which has a fixed heat dissipation rate
過熱的副作用具體到模塊(裝備) ,熱量的消耗、產生和堆積在機架的內部有一個固定的散熱率。The article takes a 600mw natural cycle drum boiler ( soot blow using steam ) as investigating object, establishes soot accumulation loss and soot blowing energy loss models for its water cooling wall, superheater, economizer and air preheater respectively, set up instructions for soot blower operating. simulating calculation results are compared with site data to verify usefulness of key models. the article introduced the operation optimizing design of soot blowers of yanzhou no2 power plant based on theoretical research
本文以600mw汽包自然循環鍋爐(蒸汽吹灰)為具體分析對象,分別建立其水冷壁、過熱器、省煤器、空預器的積灰損失和各受熱面吹灰能量損失的模型,建立相應的吹灰器運行規則指導,對設計中的關鍵模型問題,通過模擬計算及與現場數據作比較的方法,驗證其可用程度。In the paper we mainly researched space gainp2 / gaas / ge high efficiency tandem cells " making process by home - made low pressure mocvd technology and new solar concentrators. firstly, we presented reseached and development of solar cells in china and foreign countries ; secondly, on the basis of fundamental priciples and theories, we discussed some factors of influcing conversion efficiency of solar cells, and analysed the i - v output feature of two - junction tandem cells ; then the design concept of gainp2 / gaas / ge two - junction tandem cells was discussed, the detailed aspects of gainp2 / gaas / ge tandem cells epitaxy growth by low pressure mocvd was studied, and some questions on epitaxy growth ( such as crystal qualities, interface stress, element interdiffusion, n - and p - type doping et all ) were solved ; after that, the cell fabrication process was described ; finally, we reseached the hot pressing and mould process technology of an arched line - focus fresnel lens made by pmma, designed and fixed new solar concentrators
本文致力於用自製的低壓mocvd裝置進行cainp _ 2 / gaas / ge空間用高效級聯太陽能電池製作的工藝以及聚光太陽能電池組件的研究。首先,介紹了國內外太陽能電池的研究現狀及應用情況;其次,運用太陽能電池基本原理討論影響電池轉換效率的因素,分析了級聯電池的伏安特性;隨后,討論了cainp _ 2 / gaas / ge雙結級聯電池的結構設計理念,研究了採用低壓mocvd技術生長cainp _ 2 / gaas / ge級聯太陽電池材料的工藝過程,解決了異質材料生長的結晶質量、界面應力、材料互擴散以及材料n 、 p型摻雜等一系列問題;然後總結了級聯電池的后工藝製作;最後,研究了以pmma為材料的菲涅耳線聚焦透鏡的熱壓成型工藝及其模具的加工工藝,設計並安裝完成新型聚光太陽能電池組件。By hot pressing, the licoo _ 2 target was produced. different moulds were used in the hot pressing including the graphite mould and the sic mould
在熱壓法制備licoo _ 2靶材的過程中,使用了石墨模具,碳化硅模具。During the temperature fields, the results indicate that the processing parameters such as the extrusion velocity, casting temperature, perform preheating temperature, die preheating temperature and so on are important for the temperature fields besides the dwell time. they are must be in concordance each other to the deforming zone is in the quasi - solid state, and the stable semi - solid extrusion is implemented. during the deforming fields, the hyperbolic sine thermo - rigid - viscoplastic fem model is selected according to the forming feature of the process, and the variations of the stress - strain fields are studied
在溫度場的模擬中,模擬結果表明,保壓時間是影響製件成形質量的關鍵因素之一,擠壓速度、液態金屬澆注溫度、預制體預熱溫度和模具預熱溫度等工藝參數對溫度場的影響也很大,需進行參數之間的協調,只有當變形區內部始終維持準固態時,才能實現穩定的液-固擠壓成形過程;在變形場的模擬中,根據液態浸滲擠壓的成形特徵,選用了雙曲正弦剛-粘塑性有限元計算模型,研究了變形過程中應力應變場的變化規律,研究了模角對變形和金屬流動的影響及變形力的變化過程和其影響因素。By simulate running, this greenhouse has these advantages : the circuit is simple ; the degree of intelligent of the greenhouse is in a high level, and the control ability is reliable, which can control the environmental factor in the greenhouse within a certain range. ability of anti - interference of corresponding system is high, and hot plug can be realized, which made systematic expansion easy
經過模擬運行,該溫室具有這樣的優點:電路結構簡單;溫室的智能化程度高,控制能力可靠,它可以將溫室中的環境因子控制在一定的范圍之內;整個溫室的通信系統抗干擾能力強,而且可以實現各個通信模塊的熱拔插,非常便於系統的擴展。After forming, they receive adequate surface hardness through heat treatment. such hardening is made possible by carburizing. these case - hardening steels are an important group of materials for mold cavities
成形后,鋼經過熱處理得到足夠的表面硬度,這種硬化常通過滲碳的方式進行,這種表面硬化鋼是一種很重要的模具型腔製作材料This proof following enterprise already through the authentication, and has set up a file in the dongguan 114 nets industry and commerce enterprise database, inquires the more detailed enterprise material, please dial the dongguan enterprise information desk 96060 ( artificially ) 9686810114 billion ( to be automatic ), this enterprise numbers for 11637
茲證明東莞樟木頭榮大五金模具熱處理廠已通過認證,並已在東莞114網工商企業數據庫中備案,查詢更詳細的企業資料,請撥東莞企業查詢臺96060 (人工) 9686810114 (自動) ,該企業編號為11637 。Some can build commercial goods directly, eliminating the need for molds, dies and machining, but most products still struggle to match the mechanical, thermal, durability or low - cost properties achieved by traditional manufacturing
有些機器可直接製作商品,完全不需要模具和加工,不過大多數產品在力學與熱學特性、耐用程度和成本等各方面,還是難以和傳統加工產品抗衡。There are many plants that have the character of time - varying, large delay, large inertia in the process of production of modern power station such as the superheated steam temperature, the reheated steam temperature, the water treatment of boiler and the load regulation. some of them have the strong character of nonlinear and some of them are multivariable coupling systems it is very difficult to obtain good effect of control by conventional pid control. it is necessary to set up the mathematics models of controlled plants if applying control means of modern control theory such as self - adaptive control, optimal control , decoupling control and predictive control. and these control systems have large calculation and bad character of real time in general. these disadvantages make them be not able to meet the need of real production process and limit the application of them in modern power station. now the generator units are developing towards large capacity and high parameters. many new kinds of generating electricity means are coming into being. the characers of production units of power station become more and more complex but the demand to quality of control becomes more and more strict. the new control means are in bad need to control them effectively
現代電站的生產過程中存在過熱汽溫、再熱汽溫、鍋爐水處理、負荷調節等許多大遲延、大滯后、特性時變的對象,它們中有些還是具有強非線性特性的對象或多變量耦合系統,採用常規的pid控制手段很難取得良好的控制效果。若應用現代控制理論中的自適應控制、最優控制、解耦控制、預測控制等控制手段,則需要建立被控對象的數學模型,而且往往控制系統的計算量大、實時性差。這些缺點使其很難滿足實際生產過程的需要從而極大地限制了其在現代電站中的應用。In chapter four, in our experiments, we selected four representative mould steels as samples. after laser heat treatment, the hardness of samples was measured by special instrument, microstructure was also photographed to be analyzed carefully. through these experiments, we also debated on the theories which explain the new phenomenon occurring in laser overlapping treatment
第二章:介紹了工業中的各種激光加工技術和激光加工系統,詳細說明了本實驗所使用的高功率激光加工系統;第三章:詳細敘述了激光淬火的機理和熱傳導數學模型;第四章:通過實驗,分析激光淬火后的模具鋼的硬化帶的硬度分佈及金相組織特性,同時對激光交疊熱處理的特點及形成機理都作了深入的探討。We studied the effect of laser quenching ( harden by phase transformation ) on some representative mould steels. through measuring the rigidity on the surface of samples treated by laser heat treatment, and through photographing microstructures of the steel surface, we find many reasons attribute to high hardness. these reasons include ultra - fine grains, high density dislocation and more content of carbon in martensite
我們研究的是激光淬火對幾種典型模具鋼的作用,通過對熱處理后的試樣的硬度分佈的測定,用金相和電鏡觀察金相組織的變化,認為激光熱處理產生高硬度的原因是晶粒細化、高的位錯密度和高的馬氏體含量。According to heat load source of die cavity, temperature distribution gradient equations and heat flux equations and the peak value equations of temperature load at die cavity surface have been obtained with research of temperature distribution and transfer laws of die surface by unsteady heat transfer theory
摘要根據鍛模型腔熱負荷來源,通過非穩態傳熱理論,分析研究了模具工作表面層的溫度分佈與傳遞規律,給出了型腔表面溫度分佈梯度和熱流密度公式,並給出了鍛模型腔表面的溫度負荷峰值的計算公式。The frame is entirely welded with steel plates and using advanced heat treatment technonogy to completely eliminate stress allows the machine to marntain the accuracy and to extend the working life of the tools and itself
採用整體焊接結構,經過先進的熱處理及拋丸清理工藝,消除內應力,保證了機床精度的長期穩定性,最大限度的增加了機床及模具壽命。Have a wide range of knowledge on mold production preferred
熟悉模具加工工藝,熱流道等,模具生產過程者優先Subcircuit models are designed and simulated, which includes bias current source, voltage reference, error amplifier, pwm comparator, driver circuit, protection circuits for over - temperature, over - current. at last, combined with periphery component, the circuit is simulated, and the result meets the anticipant requirement
並對集成電路內的各個模塊包括電流偏置電路、基準電壓電路、誤差放大電路、三角波振蕩發生電路、 pwm比較電路、驅動電路、過熱保護電路和過流保護等進行了具體的設計和模擬,並對整體應用電路進行了模擬,結果均達到了預先設定的指標。Many means such as reasonable selecting mould material, correct forging process, appropriate heat treatment, rough machining of type hole before quenching and so on are taken in production to prevent deformation and cracking of mould effectively
在生產實踐中,通過合理選擇模具材料、正確的鍛造工藝、合適的熱處理工藝以及淬火前形孔預加工等措施,可有效防止模具的變形與開裂。Dong guan peng fu hafdware & plastic co., ltd. is set up in year 2005, originally as peng fu mould manufacture. it mainly processes and produces zinc alloy die - casting, plastic, and electronical shell mould for the customers. peng fu hardware & plastic co., ltd. is mainly focus on anufacture, and whole sale of clothes buttons, letter bag buttons, and related industry production plastic and hardware parts. we welcome all of the samples, materials from customers for their orders. we can produce and provide our high quality service for the customers if they provide the draft or 3d graphics
東莞市鵬福五金塑膠有限公司- - - -前身為鵬福模具廠,主要代客加工各類鋅合金壓鑄模具,塑膠模具,電子機殼模具經過兩年的發展,於2005年成立.東莞市鵬福五金塑膠有限公司,主要從事生產和批售成衣鈕扣,皮包扣,手機扣及有關工業產品的塑膠五金配件,同時也提供各種五金零件的加工熱誠歡迎廣大客戶來電來圖聯系製造生產各類模具,五金塑膠配件(如客戶提供草圖式板或3d圖,即可為客戶生產,提供一線式的服務)The main content of the article is involved as follows : ( 1 ) the construction of system ' s frame and design scheme after the process of collecting experts " experiences and knowledge in the industry of plastic dies at home and abroad ; ( 2 ) concept structure of the whole database after the process of data abstraction and integration, which has previously been concept structure designed and the ensuring data model transferred to be supported by dbms, constructing 266 data files and inputting data ( data files referred to appendix 2 ) ; ( 3 ) the connection between web server and plastic die material database system realized by ado, odbc technology, which will guarantee the mutual information transportation between the database system and different terminals ; ( 4 ) interactive user interface of remote optimization selection es of plastic die material is built by asp technology on the server - side ; the construction of web server ; the functions that will enable clients to inquire information of plastic die materials in the database system by using standard db inquiry language ( program files referred to appendix 1 )
本課題的主要內容是以b s結構為基礎建立基於web數據庫的塑料模具材料遠程選擇優化專家系統,使異地終端能夠通過網路在客戶端進行塑料模具材料瀏覽查詢、塑料模具材料選擇優化等操作,系統可給出符合用戶條件的被選的主要材料的技術資料,如化學成分、熱處理工藝及性能等,以及一些被選材料在行業中實際應用的良好效果等資料,並組成用戶技術文件,以便於用戶進行材料購買、加工和應用;專業人員能夠進行相應的管理。本文重點作了下述工作: ( 1 )收集國內外塑料模具行業專家經驗與知識,構造本系統的組成框架和設計方案; ( 2 )對數據進行概念結構設計,經過抽象和集成得到整體數據庫的概念結構,進而將其轉化為dbms所支持的數據模型,建立了266個數據文件並輸入了相關的數據(數據文件名稱列表參見附錄2 ) 。分享友人