外文翻譯---澆注系統(tǒng)形式和澆口的設(shè)計-免費閱讀
【正文】 位于這一區(qū)域內(nèi)的塑料的流 動性能及成型性能不佳，如果這里溫度相對較低的冷料進入型腔，便會產(chǎn)生次品。 6) 避免產(chǎn)生噴射和蠕動。這燈澆口加工容易，修整方便，并且可以根據(jù)塑件的形狀特征靈活地選擇進料位置，因此它是廣泛使用的一種澆口形式，普遍使用于中小型塑件的多型腔模具，且對各種塑料的成型適應性均較強；但有澆口痕跡存在，會形成熔接痕、縮孔、氣孔等塑件缺陷，且注射壓力損失大，對深型腔塑件 排氣不便。） 5. 分流道的布置形式 分流道在分型面上的布置與前面所述型腔排列密切相關(guān)，有多種不同的布置形式，但應遵循兩方面原則：即一方面排列緊湊、縮小模具板面尺寸；另一方面流程盡量短、鎖模力力求平衡。另外由于使用了水口板（即我們所說的定模板和中間板之間再加的一塊板），分流道必須做成梯形截面，便于分流道和主流道凝料脫模。 3. 主流道襯套的固定 因為采用的有托唧咀，所以用定位圈配合固定在模具的面板上。英文翻譯 Gating system design forms and gate A. mainstream design 1. Mainstream Road Size Road end and mainstream is in contact with the nozzle injection machine, and the other end of shunt connected with the taper section of the mobile channel. Road mainstream Xiaoduan size of ~ 4 mm. 2. Hub in the form of mainstream Road Road entrance to the mainstream Xiaoduan and repeated contact with the nozzle injection machine, is a consumable, more stringent requirements of the material, thus, part of the mainstream mold often designed as a removable sleeve, the replacement of the mainstream form (monly known as the gate sets, said here Jack Tsui), in order to effectively separate the selection of highquality steel processing and heat treatment. Jack Tsui are standard parts, just to buy on the line. Common jack Tsui into a jack Aguilar asked not care jack Tsui and two under the former map, a jack Aguilar asked for patibility positioning circle. Jack Tsui specifications are Φ12, Φ16, Φ20, such as several. As for the injection nozzles a radius of 20, so jack Tsui for R21. 3. Mainstream, the fixed hub Because the use of a child care jack Tsui, using circle with a fixed location in the mold of the panel. Setting circles are also standard parts, the diameter of Φ120 mm, diameter Φ35 mm. Specific institutional form as shown below: B. shunt design In multicavity or multicavity gate (plastic pieces of large size) should be set up triage Road, shunt is the mainstream, with the gate between the end of this section of the plastic melt flow channel. It is pouring in molten state system of plastic into the cavity from the mainstream Road, through the crosssectional area and the changes in the flow of transformation for the smooth transition of the flow pattern. Therefore, should be designed to divert the pressure to meet a good transfer and maintain the ideal state of filling and in the process of movement of pressure loss as possible, can melt plastic balanced distribution to the various cavity. 1. Main shunt the shape and size Road map is the main streaming (6) in the intake level of underflow. In order to facilitate the processing and condensate expected Stripping, shunt installed in most of subsurface, the shunt is generally circular cross section trapezoidal shape of Ushaped semicircular and rectangular, engineering design often used trapezoidal crosssection processing technology is good, and the plastic melting The loss of heat flow resistance are not large, generally using the following formul
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