It showed that a fast cooling after drawing was of benefit to dimensional stability, straightness, environmental stress cracking resistance, and strength of the drawn tubes.
拉伸时的自然冷却会产生不均匀的产品，快速水冷却拉伸工艺能显著改善管的耐环境应力开裂性，成倍提高其强度。
The padded urethane cabinet top has a dished compartment for safe placement of test tubes and other blood drawing supplies.
填补乙烷基储存柜顶部带有一个用于安全存放测试试管和其他抽血装置的隔间。
Technical properties of capillary tubes for glass thermometers are given and a special recuperative tank furnace for vertically drawing these tubes is described.
本文介绍了温度计玻璃管的技术特点，以及垂直拉制这种玻璃管的小型换热式池炉。
Through a successful Engineering example, this paper discussed and summarized the method, principle and attentive items for drawing out deep-well tubes by the construction technique of blasting.
文中通过一个成功的工程实例，初步探讨和总结了用爆破施工法拔出深井井管的方法、原理以及注意事项。
This paper introduces six kinds of polymer tubes continuous biaxial drawing technology, we simply introduce their molding methods, process equipment and performance improvement.
介绍了六种塑料管材连续双向拉伸技术，对其成型方法、加工装置和性能提高都作了简单介绍。
It showed that a fast cooling after drawing was of benefit to dimensional stability, straightness, environmental stress cracking resistance, and strength of the drawn tubes.
数据说明拉伸后的快速冷却有利于管的尺寸稳定和直线度改善。
The invention expands the drawing process to the field of magnesium alloy tubes being difficult to treat and enables the large-scale industrial production to become possible.
本发明将拉拔工艺扩展至难以处理的镁合金管领域，并使大规模工业生产成为可能。
The paper deals with features of roll-die drawing of shaped steel tubes and experiments of roll-die drawing and fixed-die drawing.
介绍了辊模拔制异型钢管的特点，进行了辊模拔制和固定模拔制试验。
This paper discusses how to select the parameters while applying the vibrating age pressing in the production of precision cold-drawing tubes.
介绍振动时效工艺在精密冷拔钢管生产过程中应用时参数的选择。
A plastic finite element model was established on the drawing process of copper tubes.
建立了铜管流动芯头拉拔过程的弹塑性有限元模型。
This paper focuses on the comparison of the matching of dies and floating plugs with different Angle with the aid of 2d axisymmetric elastic-plastic FEM and the influence of drawing copper tubes.
采用二维轴对称弹塑性有限元法对比分析了不同外模模角和游动芯头锥角的配合对拉拔铜管的影响。
This paper focuses on the comparison of the matching of dies and floating plugs with different Angle with the aid of 2d axisymmetric elastic-plastic FEM and the influence of drawing copper tubes.
采用二维轴对称弹塑性有限元法对比分析了不同外模模角和游动芯头锥角的配合对拉拔铜管的影响。
应用推荐