top riser

Based on the permanent mold casting process of Al-piston, with top insulating riser feeding process, semi-permanent insulating sleeves matching permanent mold casting process of Al-piston have been designed.

根据金属型铸造铝活塞的工艺特点，采用顶部保温冒口补缩工艺，设计了能与铝活塞金属型铸造工艺相匹配的半永久型保温冒口套。

Research for Wall Thickness Design of a Top Tensioned Riser for a Tensioned Leg Platform

张力腿平台TTR立管壁厚设计研究

Application of Bottom-Income Top-Outcome Air-Conditioning Maximum Unbalance Rate for Downfeed and Direct Return Riser System of Individual Metered Heating

下送上回空调系统的应用下供下回异程式分户计量供暖的最大不平衡率

The finite element calculation of vibration response of deep-water production top tensioned riser

深水顶张式生产立管动力响应的有限元计算

Nonlinear dynamics response of deep-water production top tensioned riser under three different moving conditions is calculated using finite element analysis software.

通过实例对各条件下顶张式立管时域动态响应特性作了比较。