Effect of friction on deforming condition during tube expanding process;
管材扩径时摩擦对变形状态的影响
The numerical analysis and experiment on the fracture in tube roll-cutting process;
管材滚压剪切的断口分析及实验研究
Evaluation on the uncertainty of measurement for the density of PVC-U pipes by a dipping method;
浸渍法测量PVC-U管材密度的不确定度的评定
Influences of temperature and impregnating time on the dichloromethane impregnating experiments of PVC-U pipes;
温度和浸渍时间对PVC-U管材二氯甲烷浸渍实验的影响
Discussion on some shortages of national standards of PVC-U water supply and drainage pipes and pipe fittings;
PVC-U给排水管材、管件国家标准中相关不足的商榷
Characteristics of Co-Cr alloy L605 tubing for coronary stents;
冠脉支架用Co-Cr合金L605管材的特性
Study on Numerical Simulation of Extrusion Forming of Mg Alloy AZ31 Tubing;
AZ31镁合金管材挤压成形数值模拟研究
Development of colored PP tubing resin;
PP-R管材着色料的研制
Choice of the parameters and main pipe material of 1000 MW unit;
百万千瓦发电机组参数及主要管材的选择
Influence of pipe materials on microbial distribution of biofilms attached to water supply pipes;
管材对给水管附生生物膜微生物分布的影响
The defects raised during piercing of round pipe die without core are analyzed, the factors affecting pipe material piercing quality are analyzed in detail, and specific steps on improving piercing quality are provided.
分析了圆管无芯模冲孔过程出现的缺陷,对影响管材冲孔质量的因素进行了详尽的分析,提出了提高管材冲孔质量的具体措施。
Applications and Characteristics of Plastics Pipes for Hot Water Installations;
热水用塑料管材的性能及应用
Progress in Processing Technologies and Applications of UHMWPE Pipes;
超高分子质量聚乙烯管材加工技术与应用进展
Three HDPE6100M/HMWHDPE copolymers were extruded through the die,and circumferential and axial strengths of pipes were studied respectively.
利用自行研制的先剪切后拉伸的挤管口模,对3种不同配比的HDPE6100M/HMWHDPE共混物挤出管材的周向、轴向强度进行研究,实验中发现少量的HMWHDPE有利于HDPE管材在复合引力场挤出中实现力学性能的双向自增强,预示了少量的HMWHDPE有利于诱导HDPE6100M分子沿应力场方向取向、结晶。