The utility model relates to a hot shrinkage pipe device which can evenly hot blow a plastic pipe to be deformed and quickly cold blow the deformed plastic pipe for shaping. 本实用新型涉及一种能将塑料管均匀吹热变形,并快速吹冷定形的热缩管装置。
Simulation experiments for shrinkage are done in many kinds of injection molding products with different structures as rectangle plank, circular pipe etc and different molding gates 'locations and numbers. 完成了矩形平板及圆管形状等多种不同结构和不同浇口位置与数量的塑件收缩模拟实验。
The lower formation is mainly smectite mixed layer, bedded with mature bedding shale, and the uneven expansion of smectite mixed layer and degradation of shale often cause accidents such as hole collapse, hole shrinkage and pipe sticking. 下部地层主要为伊蒙混层且夹杂层理发育的泥页岩,伊蒙混层的不均匀膨胀及泥页岩的剥蚀掉块,使该井极易发生井壁垮塌掉块、缩径、卡钻等复杂事故。
This article used a method, which established shrinkage pipe at the jet flow outlet, so as to enhance the jet fans outlet injection velocity. 本文采用在射流风机出口设置收缩管以提高射流速度的方法。
The concrete shrinkage and creep when the structure under the long-term loads, can make the pipe and concrete cannot woke together. 混凝土收缩和结构在长期荷载作用下产生徐变,致使钢管和混凝土在微脱离的状态下工作。