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- The results shows that die pressure ofextruder, relaxation time of polymer and geometrical parameters of die have significanteffect on stress tensor in extruder die. 模拟结果表明:机头压力、材料的松弛时间以及口模流道的几何尺寸对高聚物在机头中的应力张量的变化影响较大;
- The software ANSYS and MATLAB were employed to analyze and simulate the velocity,pressure, shear stress and viscosity distribution in fishtail sheet extruder die based on the three-dimen-sional FEM. 本文利用ANSYS和MATLAB软件,对鱼尾型片材机头中熔体的速度、压力、剪切应力和粘度的分布进行三维有限元模拟和分析。
- Some equipments, such as the extruder, extruding die, cooling pool, stretching zoon, drying zoon are designed by magnifying lab’s equipments. 其中的挤出机、挤出口模、冷却水槽、拉伸设备、干燥设备等都是根据实验室的小型设备放大的。
- The effect is evident as steel 3Cr2W8V is used in cold extruding die. 热作模具钢 3Cr2W 8V用于冷挤压模取得明显效果。
- Keywords PE;extruder die plate;pelletizer; 聚乙烯;造粒模板;切粒刀;
- Extruder die design of rubber seal for passenger car 轿车橡胶密封条挤出口型设计
- The Design of Twin-Screw Extruder Die for Special-shaped Profile 挤出异型材用双螺杆挤塑机机头模具的设计
- A combined extruding die of new structure was designed to bring 3150KN oil press into its full play under the condition of limited shut height. 在设备闭合高度有限的情况下,设计了1副结构新颖的组合式挤压模具,使3150kN油压机设备能力得到了有效的发挥。
- All kinds of reasons of extruded die cracked is analysised when profile is hot extruded,and take the method of preventing and remedying. 分析了异型材热挤压时造成挤压模具开裂失效的各种原因,并提出了预防和补救措施。
- Based on the characteristics of double cavity central venous catheters,Selected the suitable extruding process, and designed the extruding die. 根据双腔中心静脉导管的特点,选择了合适的导管成型工艺,并设计了挤出机机头的芯模和口模。
- The lathe finish machining method,machining process and machining points of cricle double-core separation die were introduced in extruding die. 介绍了在挤压型材模具的分流组合模中,圆形双型芯分流组合模车削精加工方法、加工过程及加工要点。
- The quick phosphatizing method of cold extruding die parts and its defects, as well as the solving methods are introduced respectively. 介绍了冷挤压模具零件的快速磷化方法及其缺陷分析与改进措施。
- The experiment has proved that mucilage at the extrude die with conicylindricalpassage is better than that with cylindrical passage in extruding condition and production. 由实验证明胶丝挤出口模圆锥形通道比圆柱形通道能改善挤出条件,提高挤出质量。
- By improving extruding die for soft soldering materials with air&oil discharging function,product defects were reduced,and the operation life of die was extended. 通过改进软钎焊材料的挤压模具,使其具有排气和排油功能,减少产品夹杂气体、裹油起皮(或毛刺)等缺陷,延长模具的使用寿命。
- Every winter some old people die from hypothermia. 每年冬天都有些老人死于体温过低。
- According to the complex conformal mapping principle, a systemic modeling was made on the extruding die for special-typed metals and the plastically deforming metals. 采用复变共形映射理论,对异型材挤压模及金属塑性变形体进行系统建模,并建立塑变形体的能量方程,根据极值原理,得到异型材挤压模优化设计参
- Abstract: In the working condition of the extruding die, the inwall of the die will bear very heavy non-uniform inner pressure along the height direction. 挤压是一种少无切削的先进加工工艺,在机械、仪表、电器、轻工、宇航、船舶及军工等部门都有广泛的应用[1]。
- The forming process by cold extrusion for the hood pedestal of the auto air_conditioner compressor and the design of the cold extruding die were introduced. 介绍了车用空调压缩机罩体支架的冷挤压成形工艺及冷挤压模具设计,采用工艺试验的方法确定挤压坯料尺寸。
- In view of the forming process difficulty of the high precision part,the problems of the present cold extruding die,such as big flash and low service life were analyzed. 针对某精密零件加工成形中存在的难点,分析了目前所使用的冷挤压模具结构中存在的飞边大、模具寿命低等问题,提出了模具结构改进措施。
- Little does he care whether we live or die. 他一点也不管我们是死是活。