extruder die

The formula of the extrusion stock which can resist transformer oil was studied so as to solve the problems such as the unsteady performance of the vulcanizate adaptable transformer,the incompetent properties of 45~# transformer oil resistant and the unsatisfied extrusion demand of the stock.

針對變壓器用膠料硫化膠性能不穩定、耐45#變壓器油性能不達標及混煉膠料不能滿足后續壓出工藝生產要求等問題,研制了一種以軟丁腈N41為主體材料,采用AB型并用促進劑、4010NA為防老劑、結構度較高的N539碳黑為補強填充劑的耐45#變壓器油的壓出膠料新配方。

This paper has presented a new type of ventilation,namely,forced-out ventilation.

文章提出一種新的布置方式,即壓出式。

At the same time,the improving measures of cutter head,pneumatically coming out of soil,reducing friction and so on were introduced emphatically.

結合具體工程實例介紹了氣動(捶擊式)小口徑頂管技術的原理及施工工藝,分析了氣動小口徑頂管施工管材的選擇問題,著重介紹了切土頭、氣壓出土、減小摩擦力等技術的改進措施。

Using CFD to simulate and calculate the 3D turbulent flow in a double channel impeller and pump case is introduced.

應用CFD技術模擬計算了雙流道式泵包括葉輪及壓出室在內的全三維湍流場,證實了雙流道壓出室內流動分布不均勻并隨葉輪轉動而變化、葉輪轉動到不同位置時泵的效率和揚程不同、基圓大小不同時壓出室第Ⅰ斷面內流場分布存在顯著差別。