拉模坯 的英文怎麼說
中文拼音 [lāmópī]
拉模坯
英文
die blank-
This paper referred to the massive domestic and foreign technical material, elaborated in the sheet forming value simulation theory essential technology in detail, points out when analysis sheet forming question should use the big distortion ball plasticity fem and introduce the application characteristic and the function summarizes of the sheet forming simulation software dynaform. secondly, analyzed the cover forming characteristic, simultaneously introduced the influence cover forming factor in detail : such as ramming direction, the craft addendum surface and the material pressing surface, the radius of convex - concave mold, draw bead, pressure strength, blank size and craft margin and so on. and simulates many typical automobiles cover panel with software : such lateral board, back taillight pedestal and storage cover
其次，分析了覆蓋件成形的特點和要求，同時詳細介紹了影響覆蓋件成形的因素如沖壓方向、工藝補充面和壓料面、凸凹模圓角、拉延筋、壓邊力、坯料尺寸和工藝切口等，並用數值模擬軟體對多個典型的汽車覆蓋件汽車后側圍板、后燈座以及轎車后備箱蓋的沖壓成形情況進行模擬，用模擬結果優化拉延工藝方案，比較了內覆蓋件和外覆蓋件在成形特點和要求的一些異同點，以及常見的起皺、拉裂和回彈、成形不足等缺陷的產生機理和相應對策，重點介紹工藝補充面和壓料面的設計及優化方法，因為拉延是沖壓工藝的關鍵工序，而工藝補充面和壓料面的設計是拉延工序的關鍵，對消除缺陷至關重要。In the paper, the finite element simulation software dynafrom is applied to analyze the affect of different blank holder during the forming process of laminose stepped tubular part, predict the possible defects such as wrinkle and break, obtain the rational style of blank holder avoiding the occur of defects and determine the rational configuration of die. the forming affect of thin - wall shallow stepped tubular part is analyzed when using different lubricate condition ( friction coefficient ). by this method, the relationship between friction coefficient and drawing depth of laminose stepped tubular part is obtained
本文利用有限元模擬軟體dynafrom分析了不同類型的壓邊圈對薄壁階梯筒形件成形過程的影響規律，預測了採用不同類型壓邊圈時可能出現的成形缺陷如起皺和拉裂，獲得了防止缺陷產生的合理壓邊圈形式，確定了合理的模具結構形式；分析了不同的潤滑條件（摩擦系數）對薄板階梯筒形件成形的影響，獲得摩擦系數與薄板階梯筒形件的拉深深度的關系；分析了階梯筒形件成形過程中的不同階段的應力應變分佈、毛坯材料厚度變化情況，並獲得了階梯階梯筒形件能一次拉深成形的條件。Mathematical model study on parameters of submerged nozzle in slab mould at high casting speed
高拉速下板坯浸入式水口參數的數模研究Jiye pcd die blanks for drawing wire can always be trusted ; your dies always get excellent polishing quality, producing wire with flawless surface finish
基業cd聚晶金剛石拉絲模坯擁有非常了的拋光質量，能確保拉線的表面光潔度。On basis of the development of modern control technology and apply of the network technology and locale bus - mastering technology ， the paper analyzes the essential element of slab caster system : casting speed ; expatiates in detail on the network structure and communication protocol of ethernet and profibus - dp ; mainly describes the forms of control system configuration ， the function and features of its software and hardware designs ; also, introduces mainly control function of control system, for example ， sequence control, tracking system and operation and monitor function etc. and analyzed and settled the problems of control system in debugging and producing
根據傳統的控制系統存在的一些不完善的問題，基於現代控制技術的發展、網路技術以及現場總線技術的應用，從多方面考慮，決定控制層採用siemens的s7 - 400plc ，現場採用遠程i / o單元，很好的解決了信號量大而又分散的問題。針對生產工藝和機械設備的控制要求，設計了齊全的操作模式和方式，分析了板坯連鑄系統的基本要素：拉矯速度（澆鑄速度） ；根據控制功能的分配及實現，主要說明了plc控制系統的組織結構形式，系統的軟硬體設計的功能和特點。The mud block is thrown on the center of the jolly s revolving disk, and if changed into a basic form of porcelain body accompanied body accompanied with the manual processes of squeezing and pulling and others
拉坯將泥團摔擲在轆轤車的轉盤中心，隨手法的屈伸收放拉制出坯體的大致模樣。Wire bar or tube drawing dies - as sintered pellets of hardmetal
線棒和管拉模用硬質合金模坯Wire, bar or tube drawing dies - as sintered pellets of hardmetal
線棒和管拉模用硬質合金模坯Drawing piece unfold size is one basic condition under the calculation on coefficient, number of drawing, handbooks or books of press are not given, practice press production, die designer designs drawing die by experience calculation, after testing, according to deformation, state, defect shape of testing blank, shape and unfold size is revising, finally, unfold size and shape of blank are determined, designing period is longer, cost of die and work piece is to raise, economic benefit is to reduce
拉深件展開尺寸是拉深可行性分析中計算拉深系數與拉深次數的前提條件，現有沖壓手冊或教材對于復雜拉深件的展開尺寸計算尚未論述。復雜拉深件的沖壓生產中，模具設計者憑經驗估計拉深可行性，設計製造拉深模進行反復試壓，根據試壓件的形變狀態，缺陷形貌，制定坯料展開尺寸和形狀，周期較長，因而生產成本高，經濟效益不佳。According to numerical simulation and molten steel solidification mechanism, in the paper, the restrict relationship had been setup between casting speed and molten steel level and average mould tapping section thickness as well as its shell temperature at tapping spout
本文基於數值模擬和鋼液凝固機理，建立起結晶器內鋼液液位和鑄坯拉速對其出鋼口處鋼液截面平均溫度和坯殼溫度的制約關系。Testing results are analyzed, then the boundary condition ( the heat transfer coefficient of and the water density ) for computer simulation is acquired. through simulation in computer using the all - purpose computer simulation software secondary cooling in slab continuous casting and test results, the influence of the factor such as casting speed, casting temperature, shell thickness and secondary cooling system are analyzed. the secondary cooling system is evaluated, the reasons of crack are analyzed
應用模擬軟體和實驗數據對寶鋼1930鑄機進行了模擬計算，分析了拉速、配水制度、過熱度對鑄坯溫度場和坯殼厚度的影響；對寶鋼1930鑄機的二冷制度進行了評估，分析了產生裂紋的原因；並對二冷制度進行優化，提出了改進建議。In this paper, 130mm diameter hot - rolled bars ( 3 transus temperature is 798 c ) were used in experiments. the superplastic property of ti - 1023 alloy was studied systematically by the experiments of tensile and compression. the preparation method of fine - crystalline structure and the processing parameters of superplastic forging are optimized
本文以130mm熱軋棒材為原材料，通過超塑性拉伸和超塑性壓縮試驗，對ti - 1023合金的超塑性進行系統研究，研究坯料細晶組織制備方法，優化超塑成形工藝參數，為高筋薄腹板復雜形狀ti - 1023合金鍛件超塑性等溫模鍛工藝的制定提供試驗依據。The purple sand hand - drag base art breaks the banlance of old hitting base art and dang - base model from song dynasties to now
紫砂手拉坯工藝打破了自宋代起至今的傳統打坯鑲接成形法與模型擋坯、灌漿澆注成型法的一統天下，避免了傳統成型所留下的泥條接頭線與模型接線。Three factors, such as pull - up type, the materials and structure of crystallizing mould, and the temperature field in crystallizing mould, influencing on continuous up - casting for aluminum were analyzed, which laid the foundation of the application to continuous up - casting technology for aluminum bar
分析研究了引拔拉坯制式、結晶模材料及結構、結晶模內溫度場三因素對鋁上引連鑄的影響規律，結果表明上引連續鑄造過程中施加適當頻率的反推和反推量有利於桿坯連鑄的持續，結晶模自身的性能及模內溫度場的狀態對金屬鋁桿上引連鑄工藝的實現有直接影響。Specification for hardmetal dies and associated hardmetal tools - as - sintered pellets and finished dies for drawing round bar
硬質合金模具和配套硬質合金工具規范.第3部分:拉制圓棒材用燒結模坯和精加工模Specification for hardmetal dies and associated hardmetal tools - as - sintered pellets and finished dies for drawing round wire
硬質合金模具和配套硬質合金工具規范.第2部分:拉制圓金屬絲用燒結模坯和精加工模By the net - shape forming technology, metal sheet is used as a blank, the cylindrical cup is produced through blanking, deep drawing, and etc, and then the cup is clamped to a mandrel rotated together with the main spindle, the pulley is finally produced by several different spinning rollers, which apply the radial spinning forces to the cup in different positions
鈑制帶輪是以金屬板料為毛坯，經過落料、拉深等沖壓工序製成圓筒狀，然後將其裝夾在帶有頂壓座的芯模上，使其隨主軸一起旋轉，通過若干不同齒形的旋壓成形輪分別沿徑向施加壓力而成形。Abstract : according to the site condition of the bisc, a mathematical model of two - dimensional unsteady solidification and heat transfer was established for the bloom caster in the mold. the mathematical model was solved with a finite difference method to characterize the temperature profiles and thickness of the solidified shell in the mold, the effects of casting speed on thickness of the solidified shell are also studied
文摘:根據包鋼的現場條件，建立了大方坯連鑄機結晶器內二維非穩態凝固傳熱數學模型，採用有限差分法對數學模型求解，得出結晶器中鑄坯的溫度分佈規律和凝固坯殼生成規律，同時研究了拉坯速度對坯殼生成厚度的影響In this paper, through stress analysis of region about conical and spherical parts during drawing, a calculating formula of maximum tangential compressive stess in unsupported wall region is deduced. and this is condition of causing internal wrinkle. then on the premise to guarantee not breaking workpiece, a critical calculating formula is presented
通過圓筒形及盒形件拉深前後網格變化分析，並確定變形區和非變形區，由此得到不規則盒形件毛坯展開形狀由不變形區和參與變形拉深線組成，並用此方法計算出汽車制動閥安裝板的毛坯形狀和尺寸，在試模時一次即獲得成功，具有一定的實用價值。分享友人