液壓擠制 的英文怎麼說
中文拼音 [yèyājǐzhì]
液壓擠制
英文
extrusion hydrostatic-
The globalization course was that the preformed texture recrystallized and became the granular equiaxed grain, when the temperature rose and the holding time prolonged, the granular grain melted at some area and at the liquid - solid interface the grain globalized at the role of the curvature overheated
過程機制為：擠壓形變組織在加熱過程中首先發生再結晶長大變為顆粒狀等軸晶；隨溫度升高和保溫時間延長，等軸晶發生局部熔化，液固界面的曲率過熱使晶粒外形向球狀轉變。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。Liquid - solid extrusion of composite material is a new kind of metal forming process, which has been developed in recent years with a promising practical application prospect for its simple working procedure, low cost and good workpiece performance. through a lot of experiments, the optimization and chosing method of key process parameters ( pouring temperature, mold warm - up temperature, impregnating pressure, impregnating time ) has been mastered. under the precondition of appropriate chosing these parameters, the effective control of extrusion velocity is the key of mading good workpiece. but the control of extrusion velocity remains a handwork, and it is heavily affected by such uncertainties as a handler ' s knowledge and skill about the process. in order to solve the problem, the automatic control of the extrusion velocity is studied, and a computer control system is also designed under existing condition
通過大量實驗，已掌握了關鍵工藝參數（熔液澆注溫度、擠壓模預熱溫度、浸漬時間、浸漬力）的優化選取方法。在合理選取關鍵工藝參數的前提下，擠壓速度的控制是成形出質量良好製件的關鍵。但是，目前對于擠壓速度的控制仍停留在手動控制階段，利用該工藝制備管、棒材製件的成功與否受操作者對該工藝及其設備的經驗及熟練程度等不確定因素影響很大。The liquid infiltration - extrusion technology, as a new forming method which includes the liquid forging and the solid extrusion, has been developed in recent years. the process in essence is that after liquid metal is infiltrated into the fiber perform under pressure, high pressure is directly applied to it so that the melted metal is to be crystallized and solidified under pressure, and then undergoes large plastic deformation at the liquid - solid state or the state just solidified
液態浸滲擠壓是近年來發展起來的一種融液態模鍛和固態擠壓為一體的新成形工藝，其工藝實質是使液態基體金屬在壓力下滲入纖維預制體中，發生壓力下結晶凝固，並在液-固態或剛凝固態經受大的擠壓塑性變形，一次成形出金屬基復合材料的型材類製件。Duplicate the layer. from filter menu select liquify. select pucker tool from the tool bar
復制層，在濾鏡菜單中選擇液化，點擊擠壓工具。Liquid - solid extrusion of composite material is a new kind of metal forming process, which has been developed in recent years with a promising practical application prospect for its simple working procedure, low cost and good workpiece performance. but it is difficult to set up an accurate mathematical model because the process is a multivariable nonlinear time varying system. so this process ca n ' t be put into practical uses for the difficulties in process parameters control
復合材料管、棒材液-固擠壓成形工藝是近幾年發展起來的一種金屬成形新工藝，具有工序少、成本低、製件性能好等特點，應用前景廣闊，但該工藝是一多變量非線性時變系統，很難建立精確的數學模型，過程參數難于控制，限制了該工藝的實際應用。The control of extrusion velocity in the process is not only involved in the process equipment, but also related to the process itself
復合材料液-固擠壓工藝過程中擠壓速度的控制問題，不僅涉及到成形設備，而且與工藝本身的特點密切相關。Thus, the problem of the control of extrusion velocity during the process has been basically solved, which establishes a base for the application of the process
上述工作的完成，初步解決了擠壓速度的自動控制問題，為復合材料液-固擠壓成形工藝的實際應用奠定了基礎。Four - cloumn universal hydraulie press is used in pressing technology of plastic materials, such as click folding turn up. seretching of sheet metal and canbe also used in correetion pressed install, forming of grinding wheel and cold - coining metal fittings and forming technology of poastic and powder prodects
四拄式萬能液壓機適用於塑性材料的壓制工藝，如沖載、彎曲、翻邊、薄板拉伸等，也可以從事于校正、壓裝、砂輪成型，冷擠金屬零件成型，塑料製品及粉末製品壓製成型工藝。Therefore, a new technology, which consists of the mechanical milling ( mm ), reactive sintering and hot hydrostatic extrusion has been put forward
本文採用機械球磨?反應燒結?熱靜液擠壓方法，有望成為制備高性能ti - al基合金的有效途徑。Crowd out unit using screw that the big proportion of length and diameter, the effictiveness of plasticizing is very good. the head of mould using advanced electromotive system and hydraulic system, the degree of automatization is high, acting facillitately and the high of product efficiency. the head of mould using heating method inside, adjusting easily, the thickness of sheet is very precise, and the availability of heating is high, and saving the electricity
擠出機採用大長徑比螺桿，塑化效果好模頭換網部分採用先進電動液壓裝置，自動化程度高，操作方便生產效率高模頭採用內加熱式，具有調模容易板片厚薄更精確均勻，更為突出的是熱利用率高省電節能溫度控制採用分享友人